NewLayout7.19.12 Bim Guide
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NEW YORK CITY DEPARTMENT OF DESIGN + CONSTRUCTION July 2012 BIM Guidelines Michael R. Bloomberg, Mayor David J. Burney, FAIA, Commissioner David Resnick, AIA, Deputy Commissioner TABLE OF Contents Message From The Commissioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PART ONE GENERAL INFORMATION 6 DDC Public Buildings Division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Building Information Modeling (BIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 The Purpose of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Public Buildings Lifecycle Vision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Project Delivery Models (Design-Bid-Build; CM/Build; Design Assist) . . . . . . . . 8 Model Ownership. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 BIM Roles and Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 BIM Manager. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Discipline Trade BIM Coordinators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 BIM Execution Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 PART TWO BIM USE AND REQUIREMENTS 11 BIM Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Existing Conditions Modeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Laser Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Site Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Engineering Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Design Authoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Sustainability (LEED) Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Design Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Code Validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Clash Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Cost Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Construction System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Phase Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Digital Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Record Modeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Asset Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Parametric Modeling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Model Discrepancies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Uniformat Classification and Omniclass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Coordinate System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Model Continuity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Model Level of Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 LOD 100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1 LOD LOD LOD LOD 200 . 300 . 400 . 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 . 19 . 19 20 Model Granularity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 PART THREE SUBMISSION AND DELIVERABLES Submission Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pre-Schematic Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Existing Conditions Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Site Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Space Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Authoring - Volumetric Model . . . . . . . . . . . . . . . . . . . . . . Zoning & Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schematic Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Authoring - Preliminary Model . . . . . . . . . . . . . . . . . . . . . Sustainability (LEED) Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . Programing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phase Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preliminary Cost Estimate (Square Footage) . . . . . . . . . . . . . . . Design Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preliminary Clash Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Authoring – Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sustainability (LEED) Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cost Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clash Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Program Validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Construction Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Authoring - Final Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D Coordination Validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cost Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sustainability (LEED) Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . Bid, Award and Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Services During Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Construction System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phase Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D Coordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Record Modeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Asset Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 21 22 22 22 23 23 23 23 23 24 24 24 24 24 25 25 25 25 25 25 26 26 26 26 26 26 26 27 27 27 27 28 28 28 28 Submissions & Deliverables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Discipline Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Project Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 File Naming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Model Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Plotsheet Files (DWFX/PDF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Discipline Designator Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2 Sheet Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Revision Decimal Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Revisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Inter-Disciplinary Coordination Files (NWD) . . . . . . . . . . . . . . . . 31 Object Naming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Types Within Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Deliverables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Electronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3D Model Files Required: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 2D Model Files Required: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Hardcopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 PART FOUR GLOSSARY AND APPENDIX 33 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 DDC BIM Execution Plan (BEP) Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Object Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Air Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Cable Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Casework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Ceilings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Communication Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Conduits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Curtain Walls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Data Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Electrical Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Electrical Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Fire Alarm Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Flex Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Flex Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Floors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Furniture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Furniture Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Lighting Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Lighting Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Mechanical Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Plumbing Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Railings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Ramps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Security Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Sprinklers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Stairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Structural Beam Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Structural Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Structural Foundations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Structural Framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3 Structural Stiffeners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Structural Trusses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Telephone Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Walls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Updates and Revisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 4 Message From The Commissioner Managing the design and construction for New York City’s capital projects is an increasingly collaborative process. Our consultant design teams include many separate firms representing the various disciplines and specialties, whose work must be tightly coordinated. Our consultants must work closely with DDC and with our client agency representatives as well as with other city agencies involved in the design and construction of a civic building. Because of this, DDC continually looks for ways to improve the collaborative process. One way to do so is by using Building Information Modeling. BIM strengthens collaboration by allowing all members of the design team to accurately add to a shared database information about how a building looks and functions. Using this information, the BIM database creates a virtual model of a building at every stage – from design conception through construction and occupancy. BIM is currently being used on major projects around the world and is quickly becoming an industry standard. It not only provides us with a virtual representation of our projects at all stages, but also tracks and analyzes design, construction, and operational information that are critical to the success of these projects. Shared access to this information creates valuable insight across the building lifecycle and can help improve project management performance. We believe that the successful integration of civic building design, delivery, and operations through BIM will streamline the project management process, resulting in cost-savings and more on-time completion. We are committed to broadening and accelerating the adoption of BIM for City projects. We have been working closely with the A/E/C community and other public works agencies regionally on appropriate uses and optimizing the benefits from BIM, and we are pleased to introduce this Citywide BIM standard that will be used for DDC projects and may be adopted by other agencies and organizations. Sincerely, David J. Burney, FAIA 5 PART ONE GENERAL INFORMATION DDC Public Buildings Division The Public Buildings Division manages the design and construction of buildings for more than 20 client agencies. The Division manages new buildings and substantial renovations for a wide range of building types including libraries, museums, police precincts, firehouses, emergency medical stations, transportation facilities, health centers, day care centers, senior centers, courts, and correctional facilities. Building Information Modeling (BIM) Building Information Modeling (BIM) refers to a digital collection of software applications designed to facilitate coordination and project collaboration. BIM can also be considered as a process for developing design and construction documentation by virtually constructing the building on the computer before actually building it. BIM is a multidimensional model (3D, 4D [time], and 5D [cost]) in which a virtually unlimited range of visual and non-visual project and building related information is tagged or attached to each model element as a collection of attributes. BIM is scalable not just in terms of project magnitude and complexity, but in the breadth and depth of its application and use on a project. Using BIM tools, designs can be developed directly in 3D as a collection of model elements (similar to the lines, arcs and blocks in a 2D CAD drawing). As the project is developed, increasing amounts of intelligence are added to each model element, and this intelligence is captured in a database. The benefits of using BIM are: Immediate 3D design visualization Enhanced coordination, as conflicts between systems are easily seen and addressed early in the process, before they become costly change orders The ability to model schedule scenarios and site logistics by time loading the elements of the model The ability to link the model elements to cost data for real-time estimating and to facilitate a transparent bid process Transition of the model to the users after construction for use in building operations and maintenance The Purpose of This Guide The DDC BIM Guide provides guidelines for the consistent development and use of BIM across multiple building types and for a wide range of municipal agencies. Furthermore, this guide will be useful for any agency or organization that may be interested in utilizing BIM for public projects in New York 6 Part One General Information / DDC Public Buildings Division City but do not have their own standards. The guide is intended to ensure uniformity in the use of BIM for all New York City Public Buildings projects. The BIM guide considers the end-use of the model for multiple client agencies, allowing qualified and authorized client agency representatives to review the ways in which the BIM may facilitate their ongoing building operation and maintenance protocols, and tailor their agency requirements and standards to leverage the enhanced capabilities provided by BIM for building O&M. This BIM Guide will also support client agency design standards in support of each agency’s mission. BIM toolsets and uses continue to evolve, and the DDC BIM Guide will continue to be reviewed and updated to reflect advances in industry technology, methodology and trends, as deemed appropriate for municipal agency work in New York City. Public Buildings Lifecycle Vision DDC Division of Public Buildings considers that Building Information Modeling (BIM) as technology and process is superior to traditional non-BIM methods when properly scaled in its use. BIM as an enhanced digital delivery system represents a change in how the DDC, our end-users, and our Design Consultants interact and use information. DDC is committed to our internal growth as well as that of our clients and design consultants in the effective and efficient use of BIM in support of our Lean strategies and delivery methods. The goal of the Division of Public Buildings is to improve the design, management, and construction of our projects and deliver superior public facilities to over 20 client agencies and the millions of people they serve. The information in BIM and the digitization of building data will improve and enhance buildings from design concept to operations and on to repurposing or demolition. The standardization of this data is important to our agency, our clients, and the City of New York as we begin to share more and more information across multiple agencies on multiple platforms and with our millions of citizens. Objectives BIM authoring software shall be used throughout the project lifecycle for all DDC projects designated to be delivered using BIM. DDC recognizes the many intricacies of the design process throughout all its phases. The intended use of BIM and the application of the DDC BIM guidelines are to be coordinated with the general and specific project delivery guidelines laid out in the DDC Design Consultant Guide. Where applicable, and possible BIM’s shall be created in support of all design criteria, Pre-Preliminary Design, Schematic Design, Design Development, Final Design, BID Award and Registration, Services during Construction, and Regulatory Approvals. In addition, BIM’s shall be created in support of their intended uses and specified levels of development outlined in this document. Software DDC recognizes that many BIM applications exist, and in support of our diverse consultants and end-users the DDC does not require the use of any specific commercially available software. DDC also recognizes that of the commercially avail- Part One General Information / Public Buildings Lifecycle Vision 7 able BIM software there are applications that have a wider market share as well as larger user base amongst our consultants and end-users. To that end; throughout this document there may be references to specific tools or functions which are intended to be implicit in nature and shall be applied to your specific workflow or application where possible. DDC encourages the use of software applications that foster collaboration throughout the design and construction process. Software applications produced by the same developer but specific to each discipline may help achieve this level of collaboration. A parametric modeling application is required for the creation of any BIM. Plans, elevations, sections, details and schedules shall be created from the BIM where model geometry may be represented in 2D and any other non-geometric data shall be attached to those 2D elements. The following table shows a list of current known and acceptable BIM applications for DDC Projects. This list does not preclude the utilization of other software for the prescribed uses. Use Space Programing Architectural Design MEP Design Structural Design Software Trelligence Afinnity Programming. Onuma System, dRofus Smart Planning Autodesk Revit Architecture, Bentley Architecture, Graphisoft ArchiCAD, Nemetschek Vectorworks Architect Autodesk Revit MEP, Bentley Building Mechanical Systems, Graphisoft MEP Modeler Autodesk Revit Structure, Tekla Structures, Bentley Structural Modeler Inter-Disciplinary Coordination and Clash Detection Navisworks Manage; Solibri Model Checker Code Checking Solibri Model Checker Project Delivery Models (Design-Bid-Build; CM/ Build; Design Assist) Choice of delivery model will affect the way in which the BIM is created and built upon, and should be determined in the contract prior to project initiation. It is important to understand how the choice of Design-Bid-Build (DBB), Design Build (DB), or Design Assist (DA) to the extent permitted under state law will impact BIM. Knowing in advance will ensure that BIM is properly managed and maintained from project inception. Considerations shall be given to the number of BIM managers required where DB may only have one BIM manager and DBB will have a BIM manager for design and one for construction. Similarly, considerations shall be given to contractually defined risk where one combined design and construction model exist or multiple BIM’s exist for design and construction. DDC has had success with an integrated project model that fosters collaboration and brings multiple stakeholders together early in the decision making process through combined and integrated project offices. Data interoperability is important to DDC and is in line with our life cycle vision. It is also important that nationally defined standards and protocols be used when developing BIM’s so that data may be normalized for multiple uses. Standards such as the National BIM Standards, OmniClass, Uniformat, Masterformat, and GUID’s should be used whenever possible. 8 Part One General Information / Project Delivery Models Model Ownership DDC holds ownership of the BIMs including all inventions, ideas, designs, and methods contained within the model. This includes, but is not limited to; the content submitted as part of the BIMs itself. Outside resources, such as consultants and/or contractors, using the BIM are granted temporary use of it for the duration of the project. After project completion they are required to return all copies of the BIM to the DDC. DDC holds ownership of all the contents within the models from project conception (pre-schematic design) all the way to completion (construction) BIM Roles and Responsibilities This section describes the BIM Roles and Responsibilities of the Team Members involved in DDC Projects. These Roles and Responsibilities may vary depending on the Project Delivery Model and specific project conditions. At a minimum these roles and responsibilities must be met on all DDC BIM projects, any further consideration or elaboration on these roles and responsibilities will be included in the BIM Execution Plan (BEP) BIM Manager A BIM manager shall serve as the key point of contact with the DDC for all BIM related activity on a project. Individuals in this role will have the necessary experience for the successful implementation of BIM in regards to the scope and complexity of any given project. In addition this individual shall have Intermediate knowledge and skills in the use of the proposed BIM authoring application as well as significant experience in the overall BIM process and ancillary tools. In general, minimum responsibilities shall include the following: Assures development and compliance with DDC BEP Maintains and ensures adherence to the DDC - BIM Guidelines Manual Overall responsibility for the proper use, implementation, and creation of BIM during design or construction Manage and maintain the creation of all BIM content Coordinate and Manage BIM related meetings with lead BIM technicians Interface with IT managers to ensure proper hardware and software is in place and functioning properly Provides specifications for BIM coordination rooms including necessary hardware and software for proper use Facilitates use of correct models and assures the proper compilation of multiple models in support of necessary BIM uses Manages coordination process, provides reports with the identification and or resolution of hard and soft conflicts Facilitates the proper export and data extraction from the BIM as requested and in support of specific BIM uses Assures proper deliverables are met and provided in formats as specified Coordinates BIM training as required Part One General Information / Model Ownership 9 Discipline Trade BIM Coordinators A Discipline Trade BIM Coordinator shall serve as the lead BIM technician within their discipline or trade. Individuals in this role will have the necessary experience for the successful implementation of BIM specific to their profession or trade. In addition, this individual shall be responsible for coordinating his or her work with the rest of the design or construction team. In general, minimum responsibilities shall include the following: Coordinates all technical discipline and trade specific BIM activity with BIM manager. Tools, Content, Standards, Requirements Manage other BIM Users within the Discipline Coordinate any BIM related issues with the rest of their Discipline Team Supports team in the use of BIM tools Create discipline specific BIM content Coordinate discipline specific clash detection and resolution activities Export the Model for Inter-Disciplinary Clash Detection. Coordinates BIM training as required. BIM Execution Plan The DDC requires a BIM Execution Plan (BEP) within 30 days of project award and registration. The BEP shall align with the specific project delivery model for the project. The intent of the BIM Execution Plan is to provide a framework that will let all the parties involved use and take advantage of BIM technology, along with best practices and procedures aligned with the DDC BIM Guidelines, to ensure the project is complete on time and with minimum design and or coordination problems. DESCRIPTION The BIM Execution Plan (BEP) is a detailed plan that defines how the project will be executed, monitored and controlled with regard to BIM. It is required that a BEP be developed to provide a master information and data management plan and assignment of role and responsibilities for model creation and data integration at project initiation. The Plan shall incorporate requirements specified for a project and will be developed through a collaborative approach involving all stakeholders. The BEP will outline the project procurement strategy and will align to suit the needs of DBB, DB, DA, and DDC’s Integrated Delivery Strategy. Aspects of the BEP shall focus on Team Skills, Industry Capability, and improvements in technology. Through this collaborative process the team shall agree on how, when, why, and to what Level of Development (LOD) BIM shall be used in support of project outcomes and objectives. Depending on the procurement strategy, multiple BEP’s may be needed. For example, in the case of Design-Bid-Build, one shall be provided during design and one during construction. For an Integrated Project, one BEP may be sufficient for the entire duration of the project. 10 Part One General Information / Discipline Trade BIM Coordinators PART TWO BIM USE AND REQUIREMENTS BIM Uses The nature of BIM technology allows different stakeholders to use the BIM in multiple ways depending on the specific needs they may have. As the project moves from phase to phase, the information contained within the BIM shall evolve in a progressive manner. The following list of BIM uses are the most common applications of BIM on DDC projects. BIM uses shall be considered and aligned with project goals and selected based on added value. BIM use shall be assessed and recorded in the DDC BEP. One single BIM may perform multiple BIM uses. Therefore, the DDC is not expecting one model per each use described below. EXISTING CONDITIONS MODELING A process in which a project team develops a 3D Model of the existing conditions of a facility. This model can be developed in multiple ways depending on what is desired and what is most efficient. Once the model is constructed, it can be queried for information, whether it is for new construction or a modernization project. The value of Existing Conditions Modeling is: Document existing building for historical use Provide documentation of environment for future uses Enhance efficiency and accuracy of existing conditions documentation Provide location information Aids in future modeling and 3D design coordination Use for visualization purposes Laser Scanning A process in which a laser beam is used to rapidly capture existing conditions of a building (interiors and/or exteriors) and/or natural environments (landscape) through equipment capable of measuring every point at a specific distance, speeding up the process of traditional data collection techniques and reducing errors and omissions. Consultants using this technology will be responsible for processing this information and incorporating it back into the BIM as existing conditions. This process can be outlined in the BEP and will be reviewed by DDC’s Site Engineering Laser Scanning group. Site Analysis A process in which BIM and or GIS tools are used to evaluate properties in a given area to determine the most optimal site location for a future project. The site data collected is used to first select the site and then position the building based on other criteria. The value of Site Analysis is: Use calculated decision making to determine if potential sites meet the required criteria according to the project requirements, technical factors, and financial factors Decrease costs of utility demand and demolition Increase energy efficiency Part Two BIM Use and Requirements / BIM Uses 11 Minimize risk of hazardous material Maximize return on investment Programming A process in which a spatial program is used to efficiently and accurately assess design performance in regard to spatial requirements. The developed BIM allows the project team to analyze space and understand the complexity of space standards and regulations. Critical decisions are made in this phase of design and bring the most value to the project when needs and options are discussed with the client and the best approach is analyzed. The value of Programming is: Efficient and accurate assessment of design performance in regard to spatial requirements by the owner Engineering Analysis A process in which intelligent modeling software uses the BIM to determine the most effective engineering method based on design specifications. Development of this information is the basis for what will be passed on to the owner and/or operator for use in the building’s systems. These analysis tools and performance simulations can significantly improve the design of the facility and its energy consumption during its lifecycle in the future. The value of Engineering Analysis is: Achieve optimum, energy-efficient design solution by applying various rigorous analyses Faster return on investment with applying audit and analysis tools for engineering analyses Improve the quality and reduce the cycle time of the design analyses Design Authoring A process in which 3D software is used to develop a Building Information Model based on criteria that is important to the development of the building’s design. Design authoring tools are a first step towards BIM and the key is connecting the 3D model with a powerful database of properties, quantities, means and methods, costs and schedules. The value of Design Authoring is: Transparency of design for all stakeholders Better control and quality control of design, cost and schedule Powerful design visualization True collaboration between project stakeholders and BIM users Improved quality control and assurance Sustainability (LEED) Evaluation A process in which a project is evaluated based on LEED or other sustainable criteria. This can refer to materials, performance, or a process. Sustainability Evaluations can be applied across all four phases of a construction project, Planning, Design, Construction, and Operation. Sustainability evaluation is most effective when it is done in planning and design stages and then applied in the construction and operations phase. Model all sustainable aspects of a project throughout its life-cycle in order to obtain the desired LEED certification in the most efficient manner by condensing design analyses into a single database. 12 Part Two BIM Use and Requirements / BIM Uses The value of Sustainability (LEED) Evaluation is: Accelerate design review and LEED certification process with efficient use of a single database with all the sustainable features present and archived Improved communication between project participants in order to achieve LEED credits and decreased redesign efforts as a result Align scheduling and material quantities tracking for more efficient material use and better cash flow analysis Optimize building performance by tracking energy use, indoor air quality and space planning for the adherence to LEED standards leading to integrated facility management using a BIM model Design Review A process in which a 3D model is used to evaluate meeting the program and set criteria such as layout, sightlines, lighting, security, ergonomics, acoustics, textures and colors. Virtual mock-ups can be done in high detail to quickly analyze design alternatives and solve design and constructability issues. The value of Design Review is: Eliminate costly and timely traditional construction mock-ups Model different design options and alternatives in real-time during design review by end users or owner Create shorter and more efficient design reviews Resolve the conflicts that would otherwise only become apparent in a mock-up and model the potential fixes in real-time along with tolerances revised and RFI’s answered Preview space aesthetics and layout during design review in a virtual environment Evaluate effectiveness of design in meeting building program criteria and owner’s needs Easily communicate the design to the owner, construction team and end users. Get instant feedback on meeting program requirements, owner’s needs and building or space aesthetics Code Validation A process in which code validation software is utilized to check the model parameters against project specific codes. The value of Code Validation is: Validate that building design is in compliance with specific codes (IBC International Building Code, ADA Americans with Disabilities Act guidelines and other project related codes using the 3D BIM). Code validation done early in design reduces the chance of code design errors, omissions or oversights that would be time consuming and more expensive to correct later in design or construction Code validation done automatically while design progresses gives continuous feedback on code compliance Clash Detection A process in which clash detection software is used during the coordination process to determine field conflicts by comparing 3D models of building systems. The goal of clash detection is to eliminate major system conflicts prior to installation. Part Two BIM Use and Requirements / BIM Uses 13 The value of Clash Detection is: Reduce and eliminate field conflicts; which reduces RFI’s significantly compared to other methods Visualize construction sequences, staging and logistics Reduced construction cost; potentially less cost growth (less change orders) Decrease construction time Increase productivity on site More accurate as built drawings Cost Estimation A process in which the BIM can be used to generate an accurate quantity take-off and cost estimate early in the design process and provide cost effects of additions and modifications with potential to save time and money and avoid budget overruns. This process also allows designers to see the cost effects of their changes in a timely manner which can help curb excessive budget overruns due to project modifications. The value of Cost Estimation is: Precisely estimate material quantities and generate quick revisions if needed Stay within budget constraints while the design progresses Better visual representation of project and construction elements that need to be estimated Provide cost information to the owner during the early decision making phase of design Focus on more value adding activities in estimating (identifying construction assemblies, generating pricing and factoring risks) which are essential for high-quality estimates Exploring different design options and concepts within the owner’s budget Saving estimator’s time and allowing them to focus on more important issues in an estimate since take-offs can be automatically provided Construction System Design A process in which 3D system design software is used to design and analyze the construction of a complex building system (form work, glazing, tie-backs). The value of Construction System Design is: Ensure constructability of a complex building system Increase construction productivity Increase safety awareness of a complex building system Increase Communication Phase Planning A process in which BIM is utilized to effectively plan the phased occupancy in a renovation, retrofit, addition, or to show the construction sequence and space requirements on a building site. 4D modeling is a powerful visualization and communication tool that can give a project team, including the owner, a better understanding of project milestones and construction plans. 14 Part Two BIM Use and Requirements / BIM Uses The value of Phase Planning is: Better understanding of the phasing schedule by the owner and project participants and showing the critical path of the project Dynamic phasing plans of occupancy offering multiple options and solutions to space conflicts Integrate planning of human, equipment and material resources with the BIM model to better schedule and cost estimate the project Space and workspace conflicts identified and resolved ahead of the construction process Marketing purposes and publicity Identification of schedule, sequencing or phasing issues More readily constructible, operable and maintainable project Monitor procurement status of project materials Increased productivity and decreased waste on job sites Conveying the spatial complexities of the project, planning information, and support conducting additional analyses Digital Fabrication A process that utilizes machine technology to prefabricate objects directly from a BIM. The Model is spooled into appropriate sections and input into fabrication equipment for production of system assemblies. The value of Digital Fabrication is: Automate building component fabrication Minimize tolerances through machine fabrication Maximize fabrication productivity Record Modeling A process used to depict an accurate representation of the physical conditions, environment, and assets of a facility. The record model should, at a minimum, contain information relating to the main architectural and MEP elements. Additional information including equipment and space planning systems may be necessary if the owner intends to utilize the information for maintenance and operations. With the continuous updating and improvement of the record model and the capability to store more information, the record model contains a true depiction of space with a link to information such as serial codes, warranties and maintenance history of all the components in the building. The record model also contains information linking pre-build specification to as-built specifications. This allows the owner to monitor the project relative to the specifications provided. The value of Record Modeling is: Aid in future modeling and 3D design coordination for renovation Provide documentation of environment for future uses, e.g., renovation or historical documentation Dispute elimination (for example, a link to contract with historical data highlights expectations and comparisons drawn to final product.) Solid understanding of project sequencing by stakeholders leads to reduced project delivery times, risk, cost, and lawsuits Part Two BIM Use and Requirements / BIM Uses 15 Asset Management A process in which an organized management system will efficiently aid in the maintenance and operation of a facility and its assets. These assets, consisting of the physical building, systems, surrounding environment, and equipment, must be maintained, operated, and upgraded at an efficiency which will satisfy both the owner and users at the lowest appropriate cost. It assists in financial decision making, as well as short-term and long-term planning. Asset Management utilizes the data contained in a record model to determine cost implications of changing or upgrading building assets, segregate costs of assets for financial tax purposes, and maintain a current comprehensive database that can produce the value of a company’s assets. The value of Asset Management is: Store operations, maintenance owner user manuals, and equipment specifications Perform and analyze facility and equipment condition assessments Maintain up-to-date facility and equipment data including, but not limited to, maintenance schedules, warranties, cost data, upgrades, replacements, damages/deterioration, maintenance records, manufacturer’s data, equipment functionality, and others required by owner Provide one comprehensive source for tracking the use, performance, and maintenance of a building’s assets for the owner, maintenance team, and financial department Produce accurate inventory of current company assets which aids in financial reporting, bidding, and estimating the future cost implications of upgrades or replacements of a particular asset Allow for future updates of record model to show current building asset information after upgrades, replacements, or maintenance by tracking changes Aid financial department in efficiently analyzing different types of assets through an increased level of visualization Increase the opportunity for measurement and verification of systems during building occupation Parametric Modeling To allow the different BIM Uses described in the BIM Uses section, Parametric Modeling is to be used on all DDC BIM Projects. Parametric Modeling is characterized by designing with objects having real-world behaviors and attributes, using parameters (numbers or characteristics) to determine the behavior of a graphical entity and define relationships between model components. A parametric modeling application is required for the creation of any BIM. Plans, elevations, sections, details, and schedules shall be created from the BIM where model geometry may be represented in 2D and any other non-geometric data shall be attached to those 2D elements. NOTE: The integrity of the Model should not be compromised to reflect the 2D representation of 3D elements contained within the BIM. To ensure consistency, all models and parts of models designed though analysis, shop drawing or any other non-parametric application must be integrated back into the design or construction models at each submission. 16 Part Two BIM Use and Requirements / Parametric Modeling Model Discrepancies When conflicts exist between the contents of a BIM and the Contract Set of Drawings, the information contained within the Contract Set will prevail and will be considered as definitive. The BIM shall still contain accurate representations of the design condition regardless of what is displayed on the drawing set. Uniformat Classification and Omniclass DDC BIM Guidelines organizes all of its assets based on the Uniformat System (CSI Uniformat 2004 Classification) and with the OmniClass System (OmniClass Construction Classification System). These classification systems organize all the different building elements into specific groups. The CSI Release 2010 Edition of UniFormat and the 2010 OmniClass Tables should be used as a reference when classifying Objects within the BIM. Coordinate System In an effort to organize, consolidate and standardize the information generated and consumed by all Design Disciplines within the DDC, BIM projects shall use NY State Plane NAD83(NA2011) Epoch 2010.00 Long Island zone unless otherwise dictated. Model Continuity DDC requires that all BIMs shall be developed using object-based elements only, such as Columns, Beams, Walls, Doors, Windows, etc. along with their associated parametric information. This will ensure continuity of the BIM process from Conceptual Design through Construction. As well, provide a foundation for the owner of the facility to expand the model for operations and maintenance. Model Level of Development The Model Level of Development (LOD) describes the level of detail to which a Model is developed and its minimum requirements. The Level of Development is accumulative and should progress from LOD 100 at Conceptual Design through LOD 400 at completion of Construction. The DDC Level of Development has been developed in alignment with the AIA – Exhibit E202 Document. Part Two BIM Use and Requirements / Model Discrepancies 17 LOD 100 Level 100 Models include elements such as Masses and are used for preliminary studies, such as Conceptual Design and Overall Project Phasing . Analysis based on their Location and Orientation can be performed . Quantities based on Overall Area and Overall Volume can be obtained . The images above show the Building Elements as Masses and its associated Area and Volume . LOD 200 Level 200 Models include elements in which Masses have been replaced with Generic Components . Analysis based on Overall Systems can be performed . Quantities based on specific Elements can be obtained . The images above show the different Building Elements as Generic Components . The major characteristics of components are their thickness and width allowing quick takeoffs . 18 Part Two BIM Use and Requirements / Model Level of Development LOD 300 Level 300 Models include elements in which Generic Components have been replaced with fully defined Assemblies. Analysis based on Specific Systems can be performed. Quantities based on Materials can be obtained. The images above show the different Building Elements as fully defined Assemblies, where the different components have well-defined characteristics; therefore a more specific takeoff can be performed. At LOD 300 the model can be leveraged for the generation of traditional Construction Documents and Shop Drawings. The model can be used for analysis such as: Energy Performance, Clash & Cost. LOD 400 Level 400 Models include elements that are accurate in terms of size, shape, location, quantity and orientation with complete fabrication, assembly and detailing information. At this Level, the Model may also have nongeometric (3D) information such as text, dimensions, notes, 2D details, etc. The image above shows a detail where 2D information has been placed on top of the 3D Model on a Section View. At LOD 400 the model is a representation of the proposed elements. Analysis can be performed such as: Energy Performance, Clash Detection, and Sequencing & Cost. Part Two BIM Use and Requirements / Model Level of Development 19 LOD 500 Level 500 Models includes elements modeled as constructed. Elements are modeled to accurate size, shape, location and orientation. Non geometric or physical attributes are included as parameters to the geometric shape. At this level, model granularity is similar to LOD 400 with the exception that elements are as-constructed. At LOD 500, the model is capable of being utilized for operations and maintenance. Model Granularity BIM’s shall be created providing an accurate representation of geometry needed to support specific BIM use. The level of detail needed will vary by object and by model, and the BIM itself may not represent the exact design intent of real live elements. As a rule of thumb, any object that fits within a 6”x6”x6” cube should not be modeled. Rather than modeling provide a generic node, or other graphic which contains appropriate parametric characteristics. Examples of this may be a telephone or a junction box which may only require a generic representation as a modeled element containing the correct parameters and properties, this same modeled element may be represented in typical views such as plan, elevation, and section with the standard technical symbol. 20 Part Two BIM Use and Requirements / Model Granularity PART THREE SUBMISSION AND DELIVERABLES Submission Requirements At each phase of the Design and Construction process the NYC DDC requires the delivery of the model, electronic versions of hardcopy submissions and other files that support the intent of the project. In an effort to assist the consultants and contractors with the requirements of each phase, file types have been identified in the section entitled Deliverables. To further guide in the specifics of each deliverable, the section describes in further detail the requirements of each phase of a typical project. The table provided on the next page describes the types of models and any analysis files expected at each submission. Depending on the project specifics, the Building Information Model may vary. It is anticipated that each file will be supplied at the incremental submissions during each phase as they are available. As previously stated, one single BIM may perform multiple uses and, depending on the project specifics, not all Design Phases may require all Building Information Model instances described in the table below. Continuing through the remainder of the section, each Building Information Model is described in further detail. Through each Building Information Model, description references to terminology and processes are made to both BIM Uses and Model Requirements already defined in previous sections of this document. An appendix to this document entitled “Object Requirements” contains a list of objects with tables outlining object parameters required at each phase of the project. Specifically, parameters are defined by Level of Development to better align with industry standards. Each parameter will support the anticipated analysis performed on the model at each phase. While the appendix contains a significant group of objects it is not intended to be all inclusive. As objects are created not identified, the tables are to be used as a guide to the development of objects and elements throughout the project. Part Three Submission and Deliverables / Submission Requirements 21 Design Phase Building Information Model Existing Condition Model Site Analysis Pre-Schematic (LOD 100) Space Program Design Authoring - Volumetric Model Zoning and Orientation Design Authoring - Preliminary Model Sustainability (LEED) Evaluation Programing Schematic (LOD 200) Phase Planning Preliminary Cost Estimate (Square Footage) Design Review Preliminary 3D Coordination Design Authoring - Model Sustainability (LEED) Analysis Design Development (LOD 300) Detailed Energy Analysis System Cost Estimates 3D Coordination Reporting Program Validation Design Authoring - Final Model Construction Documents (LOD 400) 3D Coordination Validation Cost Estimation Sustainability (LEED) Reporting Construction System Design Services During Construction (LOD 500) Phase Planning Digital Fabrication Record Modeling Asset Management PRE-SCHEMATIC DESIGN Pre-Schematic Design should align with the First Level of Development (LOD 100) as described in this Manual, and the Pre-Schematic Design section of the DDC Design Consultant Guide EXISTING CONDITIONS MODEL The consultant shall provide a parametric model of all exiting conditions that may affect their scope of work. Understanding the capabilities of BIM and the ability to capture multiple BIM uses in a single model, objects and model elements designated as Existing Conditions shall be consistently defined as such and clearly managed and differentiated from new construction or proposed future work. SITE ANALYSIS Surveys shall be provided as 3D topographic information within the Model. Using best BIM practices survey points using comma separated values in 22 Part Three Submission and Deliverables / Submission Requirements .txt format or points available in other CAD applications shall be imported and used as the basis to develop topography. Additional information might be provided as 2D elements as long as they are not required for the project specifics or they are used as a reference only. SPACE PROGRAM Where the consultant is developing a space program for the project, the space program shall be able too seamlessly integrate with the BIM application in use during the schematic design phase, as well as be imported and further developed in any DDC approved space programming application. DESIGN AUTHORING - VOLUMETRIC MODEL The Volumetric Model shall be defined as masses based on the information gathered from the Site and should define the building footprint. This model should be the basis of what will be developed in future phases. As the Model evolves, the Design Authoring – Volumetric Model should include: Building function and occupancy Building location Building HVAC equipment information (EER, COP, MBH, kW, tons, etc.) Building envelope construction components including U-values, SHGC, absorptivity, SRI value, color, thickness, etc. ZONING & ORIENTATION The Volumetric Model shall be used in support of an early decision making process for building location and orientation within the property line. The purpose of these simulations is to inform early design decisions with reference to building envelope, lighting, domestic water, and HVAC systems. Multiple energy simulation iterations shall be performed by changing one component at a time and comparing those results to the results of other iterations in a “percent better” or “percent worse” scenario. Design components that present “percent better” that are in line with the project energy goals will then be developed further in the schematic (criteria) design phase. Schematic Design Schematic Design must align with the Second Level of Development (LOD 200) as described in this Manual and the Schematic Design Section of the DDC Design Consultant Guide. DESIGN AUTHORING - PRELIMINARY MODEL The Preliminary Model shall at least include the following generic elements to ensure the appropriate effort within this phase. Refer to Object Requirements in the appendix for a detailed description of each of these Objects. Site Model • Existing Conditions • Topography Architecture • Interior and Exterior Walls • Doors and Windows • Stair and Ramps • Ceilings • Roofs • Bounded Rooms with Names and Numbers Structure Foundations Part Three Submission and Deliverables / Submission Requirements 23 Columns Beams Bracing Floors Mechanical Equipment Main Duct Lines Fire Protection Equipment Main Pipe Lines Plumbing Equipment and Fixtures Main Pipe Lines Electrical Panels and Fixtures Main Conduit Lines Electronics Panels and Fixtures Main Conduit Lines SUSTAINABILITY (LEED) EVALUATION All aspects of sustainability should be considered at this stage in order to evaluate the LEED criteria of materials, performance, and processes. Building performance should be optimized by tracking energy use, indoor air quality and space planning for the adherence to LEED standards. LEED goals should be established at this stage and strategies for evaluating, tracking, and documenting LEED within the BIM shall be implemented. PROGRAMmING During this phase a space program is expected to be incorporated into the BIM. The creation of this data can support the design team in program validation, program reporting and tracking. A space programming application may be used to achieve this requirement where customized reports may be produced. All program data in support of the space program regardless of where it derived shall be updated and maintained in the BIM. The following shall be derived automatically from the BIM: Program Function Room Name Room Number Assignable Areas measured to inside face of wall objects and designated boundaries of areas Gross Area measured to the outside face of wall objects PHASE PLANNING Design phases should be defined at this stage and shall be consistent throughout all the different project models for proper coordination. Design phases shall be implemented using a tool or a parameter to define or categorize all elements contained within the BIM. PRELIMINARY COST ESTIMATE (SQUARE FOOTAGE) Extract square foot information directly from the BIM integrated tools to support comparative costs analysis of options studied. Outputs shall be converted to spreadsheets and submitted as part of the design solution justification at end of this phase. A summary of construction cost per trade is expected at this stage DESIGN REVIEW A detailed Design Review is critical at this stage since the Model will be developed further once it’s moved to the next stage. Program evaluation and layout design, lighting, acoustics, textures and colors should be considered as part of the review. 24 Part Three Submission and Deliverables / Submission Requirements PRELIMINARY CLASH DETECTION Preliminary coordination at this stage should, at a minimum, be performed within the major systems on these pairs of elements: Architectural Systems vs. Structural Systems Architectural Systems vs. Mechanical Systems Architectural Systems vs. Electrical Systems Structural Systems vs. Mechanical Systems Structural Systems vs. Electrical Systems Mechanical Systems vs. Electrical Systems Design Development Design Development must align with the Third Level of Development (LOD 300) as described in this Manual, and the Design Development section of the DDC Design Consultant Guide. All systems shall be defined at this stage with the appropriate shapes and sizes along with the proper documentation to support the analysis. Listed below are defined systems with the most common elements defined for each. The list is not intended to be all inclusive, but rather a foundation to build upon. DESIGN AUTHORING – MODELS The Model will evolve from the previous phase and shall include better defined elements to ensure the appropriate effort within this phase. Refer to the Object Requirements in the appendix for a detailed description of each of these Objects. Additional elements and objects may need to be added from the previous stage Design Authoring - Preliminary Model to represent new features of the project. SUSTAINABILITY (LEED) ANALYSIS This model shall be detailed and finalized enough to use as an indicator of approximate building energy use after occupancy. This model shall also serve as a baseline for future comparisons. Custom parameters may be created to associate LEED information to the different elements within the BIM. This model shall be used as a tool to facilitate post-occupancy commissioning should discrepancies between modeled and actual energy use arise. COST ESTIMATION All elements or objects included within the Model should be automatically extracted and quantified for estimating purposes. CLASH DETECTION Coordination at this stage should be performed within the major and minor systems based on these pair of elements: Architectural Systems vs. Structural Systems Architectural Systems vs. HVAC Systems Architectural Systems vs. Plumbing Systems Architectural Systems vs. Fire Protection Systems Architectural Systems vs. Electrical Systems Architectural Systems vs. Electronics Systems Structural Systems vs. HVAC Systems Structural Systems vs. Plumbing Systems Structural Systems vs. Fire Protection Systems Structural Systems vs. Electrical Systems Structural Systems vs. Electronics Systems HVAC Systems vs. Plumbing Systems Part Three Submission and Deliverables / Submission Requirements 25 HVAC Systems vs. Fire Protection Systems HVAC Systems vs. Electrical Systems HVAC Systems vs. Electronics Systems Plumbing Systems vs. Fire Protection Systems Plumbing Systems vs. Electrical Systems Plumbing Systems vs. Electronics Systems Fire Protection Systems vs. Electrical Systems Fire Protection Systems vs. Electronics Systems PROGRAM VALIDATION Program requirements should be compared and validated with the actual design solution through reports and charts generated automatically from the BIM. CONSTRUCTION DOCUMENTS Construction Documents should align with the Fourth Level of Development (LOD 400) as described in this Manual. This model should include the current design models from each phase through the end of Design Development. DESIGN AUTHORING - FINAL MODEL The Model will keep evolving from the previous phase and shall include construction specifications along with constructions details including text, dimensions, tags, notes, materials, colors and any other description or characteristic required for construction. As previously stated, the integrity of the Model should not be compromised to reflect the 2D representation of 3D elements contained within the BIM. 3D COORDINATION VALIDATION 3D coordination validation should evolve from the previous phase. All conflicts previously found should be resolved at the end of this phase by running a final Clash Detection Report to validate the absence of Conflicts. COST ESTIMATION Quantity takeoffs should be automatically extracted from the model. Cost should be validated by integrating applications with Quantity tools or exported as spreadsheets for traditional methods. SUSTAINABILITY (LEED) REPORTING All LEED documentation and reports should be completed at this stage and should be ready to be submitted as part of the project deliverables. These documents and reports will use the previously defined custom parameters in which LEED information have been associated to the different elements within the BIM. BID, AWARD AND REGISTRATION Services during BID, Award and Registeration should align with the Fourth Level of Development (LOD 400) as described in this manual, and the BID Award and Registration section of the DDC Design Consultant Guide. After completion and approval of the 100% construction document phase, design intent BIM’s shall be archived and provided to the DDC. (see deliverables section of this guide) All deliverables including Archived BIM’s, hardcopies, dwf’s and pdf’s derived from such BIM’s shall be indentical to the desired design conditions at the time bids are received. During the Bidding phases through Award and Registration the model may be provided for informational purposes. Refer to the project specific RFP and the DDC BEP for BIM use and model availablility. 26 Part Three Submission and Deliverables / Submission Requirements SERVICES DURING CONSTRUCTION Services during Construction should align with the Fifth Level of Development (LOD 500) as described in this Manual, and the Services during construction section of the DDC Design Consultant Guide. The design BIM will be provided by the owner in its native authored format along with an assembled BIM in a format appropriate for collaboration (Navisworks or equal see deliverables section of this guide). The Construction manager or the general construction contractor shall use the Design BIM as a basis for creating a construction model to achieve the desired BIM uses outlined in this section. CONSTRUCTION SYSTEM DESIGN The BIM shall be used to better understand how complex element or elements of the project can get built on the site. These virtual mock-ups can be used to replace the on-site mock-ups and facilitate or expedite construction through tools that will allow linking the BIM sequencing, take offs, etc. These virtual mock-ups will enable the trial of alternate options before construction begins allowing the contractor to select the best one that fits the project needs. PHASE PLANNING Phases during Construction should be defined after the Design phase is completed and before the project is handed over for construction. Construction phases shall be implemented to improve constructability through the use of tools that will allow linking the BIM to a construction scheduling appllcation, such as Primavera and/or Microsoft Projects. The BIM shall be used to analyze and perform construction sequencing to avoid conflicts once construction starts and therefore improve the constructability process. SCHEDULING During construction the BIM shall be utilized to facilitate activity scheduling. Prior to construction the BIM shall be linked to the schedule by the CM and or GC for the purpose of 4d scheduling. Using applicable tools and applications elements or parts of the BIM shall be linked to the specific task in the schedule for the purpose of informing critical planning decisions and construction methods, site space utilization, resource allocation, activity sequencing, visualization and communication. Primary elements of the model listed below shall be linked to the schedule to achieve desired results. Structural system—structural framing components including foundations, grade beams, columns, load bearing walls, floor and roof decks and support. Exterior building envelope—stud wall, exterior panels and assemblies, curtain walls, openings, and glazing. Interior partitions—main interior walls, plumbing walls, and wall assemblies. Mechanical systems—main ductwork and equipment, separated by floors. Roof systems—roof assemblies, major equipment, and openings. Site work—excavation work, footings, foundations, and slabs on grade. Plumbing systems—main connection lines from site and main plumbing lines. Additional considerations shall be made to specific construction activities and task where detailed construction planning is required such as virtual test installations and logistics planning. Linking the model to the schedule in these instances shall improve coordination Part Three Submission and Deliverables / Submission Requirements 27 and parallel activity workflows reducing conflicts and delays by location and resource unavailability. 3D COORDINATION 3D coordination is an on-going process which should start at the early stages of the Design phase and evolve and muture as the project progresses. 3D coordination will also happen during construction to assist and to support the creation of the “as built” model once construction is completed so a conflict-free model can be provided for the operations and maintenance of the building. DIGITAL FABRICATION The BIM can be used to extract information directly from it to streamline the pre-fabrication and/or fabrication of elements such as pipes, ducts, structural members, etc. A list of intended objects that will be part of this effort shall be defined at the Construction phase so they can be modeled using the characteristic defined within their construction specifications. RECORD MODELING As construction progresses, the BIM shall be updated if changes occur on site due to conflicts and/or chagnes on scope, this way at the completion of the project the BIM becomes the “as built” and can be leveraged beyond construction. ASSET MANAGEMENT The “as built” BIM shall be leveraged to manage and operate the building once construction is completed, to that extent, the BIM shall include fields (parameters) to support this effort. These fields may vary from project to project and may be different depending on the type of project as well, therefore, they should be defined and incorporated within the BIM at the Construction phase with the input of the people responsible for maintenance and operations. Submissions & Deliverables NOMENCLATURE This section establishes the basic naming conventions and standards required to be used when developing a project using BIM technology for DDC. DISCIPLINE CODES All model files, content and support files shall be prefixed with the appropriate discipline code. Discipline codes in use by the DDC are represented in the table below. Discipline Name Architectural A Civil C Electrical E Fire Protection Landscape 28 Designator Code Part Three Submission and Deliverables / Submissions & Deliverables FP L Mechanical M Plumbing P Structural S Project Identification Number Each project within the DDC is assigned a unique FMS Project identifier. At the inception of all projects the FMS Project Identifier should be obtained to support the proper naming of model files, content and other support files. File Naming All electronic project information should be named following the DDCBIM guidelines naming conventions described within this section. This will ensure that projects can be accurately maintained during production, archived as a single project at each milestone and retrieved for future use. MODEL FILES Model Files should be named beginning with the FMS Project Identification Number followed by a dash, and a Discipline Code. The filename should take the form of: FMSID-D.format Item Description FMSID FMS Project Identification Number D Discipline Code As an example, an Architecture Model File would be named as follows: LQ471BNA-A.format NOTE If a model needs to be broken down further more based on the project specifics or complexity, a dash and a 2 letter designation will need to be appended at the end of the file name. PLOTSHEET FILES (DWFX/PDF) Plotsheet files should be generated out of the Models in DWFX and/or PDF format and should be named beginning with the FMS/Project Identification Number, a dash, a Discipline Code, a dash, the Discipline Designation Code (if applicable) followed by the Sheet Number range, a dash, and a two-digit Revision Decimal Number. The filename should take the form of: FMSID–D-DC001_###-RN.dwfx FMSID–D-DC001_###-RN.pdf Item Description FMSID FMS Project Identification Number D Discipline Code DC Discipline Designation Code (if applicable) 001_ ### First Sheet Number to Last Sheet Number (Three-digit Number) RN Revision Number (Two-digit Number) Part Three Submission and Deliverables / Submissions & Deliverables 29 DISCIPLINE DESIGNATOR CODES Discipline Name Designator Code Architectural A General G Title/Coversheet T Antenna ANT Hazardous Materials H Landscape L Civil C Mechanical M Electrical E Plumbing P Borings/Geotechnical B Builders Pavement Plan BBP Curb Cut CC Demolition DM Energy Code Compliance EN Construction Related Equipment EQ Fire Suppression Systems F Fire Alarms FA Foundations FO Fire Protection FP Structural S Stand Pipe SD Signs SG Excavation Sprinkler Sprinkler & Standpipe Site Safety SOE SP SP/SD SSP Other Disciplines X Zoning Z As an example, an Inter-Disciplinary Coordination File is being created for a Plumbing project with Project identification Number of LQ471BNA for its revision 7. The file should be named as follows: LQ471BNA -P-07.nwd SHEET NUMBER The Sheet Number refers to the three-digit number that appears right after the Discipline Designator Code. REVISION DECIMAL NUMBER The Revision Decimal Number refers to the two-digit number that appears right after the Sheet Number. 30 Part Three Submission and Deliverables / Submissions & Deliverables REVISIONS When creating Plotsheet in DWFX or PDF format containing revisions, only consecutive sheets can be grouped together within the electronic files. As an example, the Structural discipline is creating a revision 7 of sheets 001 through 007 and sheets 011 and 013. Three files should be named as follows: LQ471BNA-S-001_007-07 LQ471BNA-S-011-07 LQ471BNA-S-013-07 INTER-DISCIPLINARY COORDINATION FILES (NWD) Inter-Disciplinary Coordination Files should be generated out of the Models and saved as NavisWorks files (NWD). Similar to model files, coordination files should be named beginning with the FMS/Project Identification Number, a dash, a Discipline Code and a two-digit Revision Decimal Number. The filename should take the form of: FMSID–D- RN.nwd Item Description FMSID FMS/Project Identification Number D Discipline Code RN Revision Number (Two-digit Number) As an example, an Inter-Disciplinary Coordination File is being created for a Plumbing project with Project identification Number of LQ471BNA for its revision 7. The file should be named as follows: LQ471BNA -P-07.nwd OBJECT NAMING Objects within the Model should be named beginning with the Object Category, a space, a dash, a space, the Type, a space, a dash, a space, a Subtype, a space, a dash, a space, the Manufacturer Name, a space, a dash, a space and an optional User Description.
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