14.1 FLIP Anchors
User Manual: 14.1 FLIP
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MAINTENANCE EQUIPMENT window washing systems 11010 1 03 Pro-Bel Enterprises Limited SAFETY & TIE-BACK ANCHORS Window Cleaning/ Suspended Maintenance Equipment & Fall Protection Systems 1-800-461-0575 w w w . p r o-b e l . c a i n f o @ p r o-b e l . c a THE SAFETY ROOF ANCHOR EXPERTS SAFETY & TIE-BACK ANCHORS EXPLANATION A fundamental concept in the use of maintenance contractor supplied conventional suspended access equipment such as bosun’s chair, single work cage or platform is that there must be two independent means of support for each worker using the equipment. The first means of support is the access equipment itself tied back to an anchor. The second is usually provided by a separate fall arrest system consisting of a: • full body harness; • lanyard (with shock absorber); • mechanical rope grabbing device; • lifeline; • lifeline anchor. In addition, anchors, which are used for tie-backs or for securing lifelines, are also an effective, practical means for directly securing a bosun’s chair with descent control equipment, the most popular method of window cleaning today (direct rigging). All Buildings Require Roof Anchors Extract From ANSI/IWCA I-14.1 Window Cleaning Safety Standard: 4.1.1 All buildings where window cleaning is performed that employ suspended equipment shall be equipped with roof anchorages or other approved devices which will provide for the safe use of the equipment in conformance with the provisions of this Standard. Bosun’s chair is the equipment of choice among window cleaners. Pro-Bel safety anchors (see photo at right) are used to secure chair and separate lifeline. The chair is rigged directly to an anchor in line with the point of suspension. A separate independent anchor on the roof is required to secure the worker’s fall arrest lifeline. Pro-Bel safety anchors may be used for securing lifeline, for tie-back of primary rigging equipment or to directly rig a bosun’s chair. PRO-BEL WALL ANCHORS TIE-BACK SAFETY ANCHOR FOR SERVICING VIDEO CAMERA LIFELINE TIE-BACK OUTRIGGER BEAM WITH COUNTERWEIGHTS PRO-BEL ROOF ANCHORS PRO-BEL ROOF ANCHORS LIFELINE PRIMARY SUSPENSION LINE SUSPENSION LINE PARAPET WALL PRIMARY CLAMP SUSPENSION LINE CARPET STRIP BOSUN’S CHAIR PRIMARY SUSPENSION LINE LIFELINES BOSUN’S CHAIR SINGLE WORK CAGE POWERED PLATFORM Typical rigging and fall arrest requirement scenarios using Pro-Bel safety lifeline and tie-back anchors. A-2 DESCRIPTION Note: Pro-Bel tie-back/lifeline anchors and direct rigging anchors are the same and are used interchangeably. Safety Anchor Types There are literally dozens of Pro-Bel safety anchor products available. Each has been engineered to satisfy a particular job requirement. They can be categorized as follows: PB and PBE Series Wall Anchors PB wall anchors are fabricated using a patented stainless steel U-bar which is detachable for ease of replacement, concrete forming and waterproofing. PBE anchors are a more economical alternative to PB anchors and are used when flashing or waterproofing is not a consideration. Pro-Bel PB type wall anchor in concrete wall of rooftop mechanical room. Pro-Bel wall anchor recessed in box flashing (PB71S). Pro-Bel PB type steel pier roof anchor with detachable cap and aluminum flashing. Pro-Bel PBE type roof anchor with aluminum flashing and heat-shrink rubber collar flashing. PBE Series Roof Anchors PBE Series anchors have a non-detachable stainless steel U-bar and are flashed using a spun aluminum flashing sealed at the top with a heat-shrink rubber collar flashing. PB Series Roof Anchors PB Series anchors, somewhat more expensive than PBE Series anchors, are fabricated using a patented stainless steel U-bar and stainless steel cap flashing which is detachable for ease of replacement. USE ANSI/IWCA I-14.1 (3.9 Anchorages) states that “Building owners and window cleaning contractors shall not allow suspended work to be performed unless it has determinded that the building has provided, identified and certified anchorages complying with Section 9 or 10 for: independent safety lines; tie-backs for outriggers, parapet clamps and cornice hooks; primary support anchorages for powered and manual boatswain’s chairs; primary support anchorages for rope descent systems; horizontal (rope) lines or lifelines; and wherever else required.” Pro-Bel roof anchor set into concrete pier (PB70). Pro-Bel “flip-up” terrace anchor concealed with cut out core trimmed with stainless steel band and tabs. A-3 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) Note Re: Alternative Finish to Galvanizing. For all anchor bases and supports, Pro-Bel offer a superior protective coating _ Protex _ in lieu of galvanizing if desired. Pro-Bel Protex is a 3/32” (2.4 mm) thickness, black colored, two component spray on, flexible 100% solids thermoplastic (TPU) polyurethane/polyurea system. Protex provides exceptional impact and abrasion resistance and is factory applied via high pressure impingement mix polyurethane dispensing equipment. See Pro-Bel Protex Technical Data Sheet # R-2 for complete information. FEATURES All corrosion resistant materials; anchor components are stainless steel and/or hot dipped galvanized steel. Standards conformance; all anchors comply with OSHA and ASME/ANSI/ IWCA safety requirements for window cleaning, and various materials standards. Installation flexibility; Pro-Bel safety anchors are suited to a broad range of building structures, including concrete, structural steel or precast panels. Securement methods include cast-inplace, through bolts, bolt around, welding, or chemical epoxy fastening. Engineer certified; OSHA and ANSI/ IWCA I-14.1 requires that safety anchoring devices be designed by or under the direction of a registered professional engineer experienced in such design. Pro-Bel safety anchors meet this criteria and anchor performance is based on data derived from testing and/or engineering calculations. Anchors have been tested to ensure fracture or detachment does not occur with the application of a 5,000 lb (22.2 kN) load in any direction. Minimum anchors; OSHA and ANSI/ IWCA I-14.1 requires that equipment tiebacks be “installed at right angles to the face of the building whenever possible”. This requirement, can result in an unnecessary number of installed anchors. Pro-Bel has developed anchor placement chart data to help designers locate anchors to suit tie-back and lifeline requirements. This data ensures compliance with OSHA fall protection criteria while reducing the number of anchors (and roof penetrations) required. Specific liability insurance; all Pro-Bel davit installations automatically carry $2,000,000.00 coverage against product/ system failure (over 4000 projects successfully completed to date). MATERIALS/FABRICATION (as applicable) U-bar, anchor bolts, detachable caps: Type 304 stainless steel with yield strength of 42 Ksi (290 MPa) or mild steel to ASTM A36, Type 350W with yield strength of 43 Ksi (297 MPa), hot dipped galvanized to ASTM A123/A 123M-2000. Hollow steel section (HSS) piers: galvanized mild steel as above with yield strength of 50 Ksi (345 MPa), with or without urethane foam insulation. Plate and all other sections: galvanized mild steel as above with yield strength of 43 Ksi (297 MPa). Seamless spun aluminum flashing (for steel pier anchors): Type 6061-T6 alloy to ASTM B221-2000 with deck flange flashed in using felt plies to NRCA or CRCA recommendations or roofing membrane manufacturer’s instructions, as applicable. Top of anchor sealing (for steel pier anchors): torch applied heat-shrink rubber collar flashing or detachable U-bar complete with stainless steel watertight cap. Compatible with roofing; Due to stringent OSHA anchor placement requirements i.e. in line with the point of suspension and free fall distance, anchors, for the most part, must necessarily be placed on the roof. An important consideration in the design of Pro-Bel anchor products is the need to maintain the long term watertight integrity of the building. Pro-Bel products are designed with a full understanding of reliable flashing/sealing techniques to satisfy any roof condition. Bolts, nuts and washers: Type 304 stainless steel or galvanized steel to ASTM A325. Note: Illustrated on the next few pages are only some of the many model variations of anchor products available. Anchors can be engineered to satisfy virtually any access requirement. Where anchors are located in waterproofed areas of a roof, a pier is normally provided to elevate the anchor above the waterproofing. In the case of metal pier anchors, the pier is supplied with the anchor and a prefabricated flashing to suit roof type as required. With concrete pier anchors, the pier must be formed, the anchor cast in, and the flashing fabricated at the job site. Sole responsibility; Pro-Bel provides complete fall protection products/systems from concept to the supply and installation of same, including annual inspection. A-4 Worker above uses Pro-Bel “Hands-Free” horizontal lifeline cable to safely access recessed windows as well as custom ledge-mounted Pro-Bel safety anchors (one for bosun’s chair and one for lifeline) for” drops” below. Pro-Bel wall anchor bolted to steel beam supporting rooftop AC chiller unit. Window cleaners preparing to launch a contractor supplied platform over a parapet wall using Pro-Bel davits with rotating heads. Steel cables are used to suspend the platform while workers are tethered to independent Pro-Bel roof anchors with rope lifelines. Terrace application shows how a series of Pro-Bel stainless steel “flip-up” anchors can be completely concealed with pavers when not in use. Anchors are arranged to suit both bosun’s chair and suspended platform applications. Series of Pro-Bel wall anchors bolted to structural concrete parapet, used to secure a bosun’s chair suspension line and workers’ lifeline (interchangable). A-5 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) TESTING* Testing of Pro-Bel wall and roof anchors involve a variety of both shop and on-site test methods including static, dynamic and destructive procedures. All testing is carried out by independent testing agencies or under the direction of a professional engineer in accordance with recognized standards. Anchors secured using epoxy adhesive are tested to 5000 lbs (22.2 kN) to ensure against failure. The photos on this page provide an overview of Pro-Bel test procedures. * Test data available upon request. The static load test in the above photo, which applies force using a heavy duty cable come-along, was conducted to show that Pro-Bel wall and roof anchors comply with standards that require the anchors be capable of resisting without fracture and/or pull-out a force of 5000 lbs (22.2 kN). A similar test is performed on-site to verify strength of epoxy adhesive roof anchors. Pro-Bel wall anchors secured to structural concrete using epoxy adhesive are load tested on-site using a hydraulic pull tester to verify strength and anchor bolt integrity. A-6 Photo shows 8’-0” (2440 mm) high apparatus used for shock (drop) testing of Pro-Bel safety U-Bar anchors. A 220 lb. (100 kg) weight was connected to the anchor using a steel test lanyard and dropped a distance of 4’- 0” (1220 mm). A series of anchors employing different securements were tested and peak forces up to 18,522 lbs (8400 kg) were generated without fracture to any part of the anchors. A series of Pro-Bel safety U-Bar anchors were tested to determine their ultimate strength (destructive testing). The force used to break the test specimens was provided by a hydraulic system, a hooking mechanism, and support structure. The highest pressure recorded just before a specimen was broken in this series of tests measured 32,445 lbs (4500 psi * 7.210 in2). WALL ANCHOR SECUREMENTS THROUGH-BOLT CAST-IN-PLACE EPOXY ADHESIVE BOLTS 5 4 2 3 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 2 1 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 4 1 2 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 1 3 3 6” (150 mm) MIN 6” (150 mm) MIN 6” (150 mm) MIN PRO-BEL MODEL # PB69S: STAINLESS STEEL U-BAR SAFETY ANCHOR; STAINLESS STEEL OR GALVANIZED BOLT; HEAVY DUTY HEX NUT & LOCK WASHER; GALVANIZED STEEL BACK PLATE. 1. 2. 3. 4. 5. STAINLESS STEEL U-BAR SAFETY ANCHOR; S.S. LOCK WASHER AND NUT STAINLESS STEEL CAST- IN- PLACE ROD; FORMING NUT. GALVANIZED STEEL BACK PLATE. REINFORCED WALL ANCHOR WITH EPOXY ADHESIVE BOLT SECUREMENT AT FLOOR 2 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 2 1 BACK PLATE PRO-BEL MODEL # PB48S: 1. STAINLESS STEEL U-BAR SAFETY ANCHOR; 2. LOCK WASHER AND NUT; 3. EXPOXY ADHESIVE ANCHOR BOLTS RECESSED, CAST-IN-PLACE 6” (150 mm) MIN 3 4 2 4” (100 mm) 5 3 5 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 1 7-1/2” (190 mm) PRO-BEL MODEL # PB71S: 1. 2. 3. 4. 6” (150 mm) MIN 3 PRO-BEL MODEL # PB93S-A 1. STAINLESS STEEL U-BAR SAFETY ANCHOR; 2. S.S. OR GALVANIZED BOLT, EXPOSED THREADS TO BE DEFORMED AFTER INSTALLATION; 3. STEEL REINFORCING c/w STEEL BASE PLATE TO SUIT; 4. HEAVY DUTY HEX NUT & LOCK WASHER; 5. EPOXY ADHESIVE ANCHOR BOLTS. PRO-BEL MODEL # PBE68: 1. REINFORCING ROD TIES BY OTHERS; 2. STAINLESS STEEL RECESSED BOX TYPE SAFETY ANCHOR; 3. S.S. FORM NAILING FLANGE A-7 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) ROOF ANCHOR SECUREMENTS THROUGH-BOLT 3 2 2 4 3 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 1 2 8” (200 mm) MIN. 8” (200 mm) MIN. 6 1 8” (200 mm) MIN. 1 EPOXY ADHESIVE BOLT CAST-IN-PLACE Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 4 3 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 5 5 5” 4 5 PRO-BEL MODEL # PBE74-00A4-S: PRO-BEL MODEL # PB73-SDC1: 1. STAINLESS STEEL U-BAR SAFETY ANCHOR c/w S.S. BOLT & DETACHABLE S.S. CAP; 2. SEAMLESS SPUN ALUMINUM FASHING; 3. GALVANIZED STEEL PIER; 4. STAINLESS STEEL HEAVY DUTY HEX NUT & LOCK WASHER; 5. GALVANIZED STEEL BACK PLATE; 6. TAMPERPROOF PIN 1. 2. 3. 4. 5. STAINLESS STEEL U-BAR SAFETY ANCHOR GALVANIZED STEEL PIER c/w BASE PLATE; SEAMLESS SPUN ALUMINUM FLASHING; HEAT-SHRINK RUBBER COLLAR FLASHING; STAINLESS STEEL BOLTS c/w PLATES WELDED TO BOLTS. WELDMENT 1 4 2 3 5 WRAPPING CONCRETE JOIST Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 1 2 8” (200 mm) MIN. 4 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 8” (200 mm) MIN. 3 8” (200 mm) MIN. STAINLESS STEEL U-BAR SAFETY ANCHOR; GALVANIZED STEEL PIER c/w BASE PLATE; SEAMLESS SPUN ALUMINUM FLASHING; HEAT-SHRINK RUBBER COLLAR FLASHING; EPOXY ANCHOR BOLTS. WRAPPING I-BEAM 1 2 PRO-BEL MODEL # PBE78-S: 1. 2. 3. 4. 5. 3 4 5 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. 6 6 5 I-BEAM CONCRETE JOIST I-BEAM 8 A-8 STAINLESS STEEL U-BAR SAFETY ANCHOR; GALVANIZED STEEL PIER; HEAT-SHRINK RUBBER COLLAR FLASHING; SEAMLESS SPUN ALUMINUM FLASHING; EXISTING METAL DECK; FLAT STOCK DECK CLOSURE PLATE (OPTIONAL) 7 1. 2. 3. 4. 5. 6. STAINLESS STEEL U-BAR SAFETY ANCHOR; GALVANIZED STEEL PIER c/w BASE PLATE; GALVANIZED STEEL BOLTS; HEAT-SHRINK RUBBER COLLAR FLASHING; SEAMLESS SPUN ALUMINUM FLASHING; FLAT STOCK DECK CLOSURE PLATE (OPTIONAL); 7. STEEL BACK PLATE; 8. HEAVY DUTY HEX NUT & LOCK WASHER. 6 PRO-BEL MODEL # PBE76-S: PRO-BEL MODEL # PBE76-S: PRO-BEL MODEL # PBE75-S: 1. 2. 3. 4. 5. 6. 7 1. 2. 3. 4. 5. 6. 7. STAINLESS STEEL U-BAR SAFETY ANCHOR; GALVANIZED STEEL PIER c/w BASE PLATE; GALVANIZED STEEL BOLTS; HEAT-SHRINK RUBBER COLLAR FLASHING; SEAMLESS SPUN ALUMINUM FLASHING; STEEL BACK PLATE; HEAVY DUTY HEX NUT & LOCK WASHER. PRO-BEL MODEL # PB97 HEAVY DUTY DETENT-TYPE CONCRETE EMBED ANCHOR PRO-BEL MODEL # PB96-RP2 “FLIP-UP” ROOF ANCHOR SUSPENSION LINE FOR BOSUN’S CHAIR Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. NOTE: WHEN THE ANCHOR IS COMPLETELY RECESSED BELOW THE PAVER. THE PAVER CAN BE CORED OUT AND THE CORE CAN BE USED AS A CAP. RECEIVER METAL COVER CAP 2-1/2” (64 mm) STAINLESS STEEL ANCHOR SECUREMENT LUG DETENTNOT-IN-USE TYPE PLUG CONNECTOR Anchor in terrace deck. Paver cutout conceals anchor when not in use. RAILING PIVOTING STAINLESS STEEL U-BAR ANCHOR STOP LUG EXISTING PAVERS CONCRETE BALCONY D-CUP STEEL BASE PLATE CONNECTOR RE-BAR INSERT PRIMED STEEL HSS REINFORCEMENT STEEL LOCK WASHER & HEAVY DUTY HEX NUT EXISTING COMPOSITE DECK STAINLESS STEEL THREADED ROD Application Recommended for use in new construction or retrofit applications where it is necessary or desirable to conceal the anchor when not in use i.e. terrace, balcony or roof deck locations. ProBel flip-up and recessed anchors are designed to suit all roof conditions including cast-in-place and weldment applications. CARPET PROTECTION Application Ideal for use in new contruction for exposed concrete balconies where it is desirable to directly rig a bosun’s chair over a balcony rail. If the rail cannot accommodate the loads, outrigger beams may be employed for exterior maintenance using a ground rigged platform. The embed anchor (connector) is removed and capped flush when not in use. PRO-BEL ROOFTOP SUPPORTS Pro-Bel also manufactures a complementary line of rooftop supports for pipes, satellite dishes, catwalks, cellular towers, antenna, guy wire securement, air conditioning units and similar equipment. These supports can be supplied as stand alone items or combined with U-bar safety anchors and are secured and flashed in using the same reliable methods employed for Pro-Bel anchors. For further information contact a ProBel representative. 1 3 2 8 4 VARIES 6 7 5 Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. I-BEAM 1/4” (6 mm) PRO-BEL MODEL # PB75-HP1 PIPE SUPPORT: Pro-Bel galvanized steel pipe support complete with U-Bar safety anchor. 1. 2. 3. 4. 5. 6. 7. 8. GALV. STEEL PIPE SADDLE; THREADED GALV. ROD; GALV. ROD DRILLED & TAPPED; GALV. ANCHOR CAP; TAMPERPROOF PIN; SUPPORT BASE SECUREMENT BOLT; GALV. STEEL SUPPORT BASE; S.S. OR GALV. U-BAR SAFETY ANCHOR. A-9 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) DESIGN CONSIDERATIONS Roof Space: Conventional (non-permanent) outrigger beams employing counterweights, when used with descent controlled bosun’s chair, single work cage or platforms are normally supported to clear a low non-structural parapet wall. Conventional outrigger beams are typically 12’-0” to 15’-0” (3658 mm to 4572 mm) long and have a reach of 3’-0” (915 mm) or less beyond the roof edge. They require sufficient space on the roof to accommodate the inboard portion of the beam and the tie-back. Parapet Strength: If the parapet wall is structurally sufficient, a parapet wall clamp may be secured to the wall for the suspension of access equipment. Also, a bosun’s chair can be directly secured to a safety anchor. This is known as direct rigging. The chair is rigged directly to wall or roof anchors in line with the point of suspension, and the primary synthetic rope suspension lines are normally protected at the parapet using contractor supplied carpet or other anti-abrasion protection devices. When the parapet is not capable of supporting the applied loads, primary suspension support equipment such as outrigger beam dollys or davits must be considered. See Pro-Bel Outrigger Beam Systems or Davit Systems literature. Pro-Bel portable outrigger with beam dolly is ideal for clearing non-structural parapet. Note separate pier- type safety anchors for securing lifelines. See Pro-Bel Outrigger Beam Systems literature. Location of Lifeline Anchors: The location of lifeline anchors relative to tieback anchors must be such that a worker can neither fall more than 6’-0” (1.8 m), nor contact any lower level (OSHA 1910.66, Subpart F and ANSI/IWCA I-14.1, section 9.2.2 (g) 2). See Layout data on page A-12. Free Design Service: The selection of window cleaning equipment is a performance oriented and highly specialized field requiring an in-depth knowledge of Rigging Methods, Safety and OSHA Standards/State Codes. Pro-Bel provides a free design service to ensure that ProBel systems are properly specified. Parapet Height: Anchors can be installed in parapet walls provided walls meet the following criteria: 1. Wall is 42” (1067 mm) minimum guardrail height; 2. Wall has been engineered to take the applied loads. Structural loads: Anchors are designed to a maximum fall arresting force of typically 1800 lbs (8.0 kN) when wearing a body harness with a safety factor of 2 without any permanent deformation and to 5000 lbs (22.24 kN) against fracture or detachment. A-10 Pro-Bel portable aluminum ground rigged davit arms are ideal for clearing non-structural parapets or reaching out past building face obstructions. See Pro-Bel Davit Systems literature. This photo shows a Pro-Bel roof anchor installation. Anchors are welded to structural steel before a horizontal lifeline cable system is installed to provide fall protection on this arched roof. ANCHOR LAYOUT PROCEDURE 1. Review the Pro-Bel System & Equipment Introduction literature (pages G-6 to G18). This data provides an overview of the various equipment options used to clean windows or perform other suspended building maintenance. 2. Identify all roof levels. Mark window locations on other areas requiring access on the architectural roof plan drawing(s). 3. Examine building section drawings to assess construction of parapet wall, mechanical room wall and roof assembly or other building elements as necessary. 4. Examine roof structural drawings for possible anchorage locations. 5. Examine building elevations or other drawings to identify any setbacks, recesses or other unusual features. 6. Review the Design Considerations on page A-10 to assist in making a "rigging" decision. 7. If it has been determined that "rigging" is suited to using anchors only, for both the support of primary suspension equipment and lifelines, refer to Anchor Spacing Chart at right on page A-12. Note: Primary suspension equipment refers to conventional, maintenance contractor supplied equipment i.e. bosun's chair, transportable outrigger beams, single work cage, temporary platform and parapet wall clamps. ANCHOR PLACEMENT 1. After determining what areas of the building face will need to be accessed for maintenance, anchor locations can now be chosen. 2. Anchors are located on the roof of the building and are generally secured to any or all of the following acceptable vertical or horizontal elements: mechanical room curb walls; parapet walls minimum 42" (1067 mm) high; roof mounted structural elements e.g. rooftop equipment structural support beams or columns, and similar structures; roof decks (to concrete slab, precast deck, structural steel, and similar structures); finished roof top terraces. 3. Ideally locations for Pro-Bel safety anchors are in direct line with the anticipated "drops" and are suited to both bosun's chair and suspended platform. A "drop" for a chair is typically a 6'-0" (1830 mm) wide area, and 20'-0" to 28'-0" (7000 mm to 8535 mm) for a platform. Two anchors are required for bosun's chair (1 primary and 1 lifeline) and 4 anchors are required for a platform (2 primary and 2 lifeline). 4. Lifeline anchors and primary tie-back anchors for transportable outrigger beams and parapet wall clamps should be located in line with the point of suspension (perpendicular) whenever practical, but should not be offset more than 10'-0" (3084 mm) measured horizontally from running at a right angle to the building face at the point of suspension. The angle created by the offset distance should not exceed 25º. See anchor spacing chart data on page A-12. 5. If a bosun's chair or similar single point suspension equipment is used with the primary support lines directly attached to anchors (direct rigging), the horizontal portion of the descent line (that portion of the support from the anchor to the roof edge) should be in a plane at right angles to the face of the building at the "drop". This guideline will ensure that slide distance and swing action in the event of a fall will be reduced to a reasonably safe minimum thereby lessening the potential for worker collision injury, while allowing for selfrecovery. Essentially, OSHA 1910.66, Subpart F and ANSI/IWCA I-14.1, section 9.2.2 (g) 2 requires personal fall arrest systems be rigged such that an employee can neither free fall more than 6'-0" (1.8 m), nor contact any lower level. Any anchor placement scenario should reflect this requirement. MECHANICAL ROOM MAIN ROOF STAIRWELL ROOF Bolt Through Wall Epoxy Adhesive Bolts TYPICAL CHAIR DROP TYPICAL PLATFORM DROP Typical Anchor Layout Plan Weld to Structure Adhesive Roof Anchor ROOF PLAN / ANCHOR LAYOUT SHOWING TYPICAL CHAIR AND PLATFORM DROPS A-11 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) ANCHOR PLACEMENT (continued) RELATIVE SPACING BETWEEN PRIMARY SUSPENSION ANCHOR AND LIFELINE ANCHOR 6. Locate the very first roof anchor, which should be a primary suspension or tie-back anchor. If the parapet wall is less than 42" (1067 mm) guardrail height, this anchor should be a minimum of 6'-0" (1830 mm) distance from the parapet so that the worker can tie off whenever the worker has to step within 6'-0" (1830 mm) of an unguarded edge. If the parapet is minimum 42" (1067 mm) high, the anchor can be located any distance inside the parapet. The anchor spacing data shown below indicates recommended spacing of fall arrest safety anchors relative to primary suspension or tie-back anchors. 8. After primary anchors have been located, lifeline anchors can now be located relative to the primary anchors using the anchor spacing chart data at right. 9. Anchor spacing must be adjusted, of course, to circumvent any obstruction. MAXIMUM SPACING 25º MAX PRIMARY SUSPENSION LINE (FOR DIRECT RIGGING OF BOSUN’S CHAIR OR TIE-BACK OF OUTRIGGERS FOR SINGLE MAN CAGE OR PLATFORM). LOCATE ANCHORS IN ACCORDANCE WITH THE ANCHOR SPACING CHART BELOW SO AS NOT TO EXCEED AN ANGLE OF 25º, TO ENSURE THAT PRIMARY SUPPORT LIINES, TIE-BACK LINES AND LIFELINES ARE RIGGED WITHIN THE 15º OFFSET ANGLE RECOMMENDED IN ANSI/IWCA I-14.1. WINDOW ANCHORS ARE WITHIN FALL ARREST LIFELINE ZONE 15º DEPTH (SEE CHART BELOW) 7. The second and subsequent primary suspension or tie-back anchors can now be located as per item 3. INDEPENDENT FALL ARREST LIFELINE ANCHOR PRIMARY SUSPENSION EQUIPMENT ANCHOR This narrow roof area requires anchors on 5’- 0” (1830 mm) centers. See Anchor Spacing Chart below. 90º OUTSIDE FACE OF PARAPET WALL OR BUILDING BOSUNS CHAIR LANYARD LENGTH 4’-3” (1295 mm) MIN. Plan View of Roof Showing Rigging In Line with Anchors ANCHOR SPACING CHART DEPTH Note: Pro-Bel tie-back/lifeline anchors and direct rigging anchors are the same and are used interchangeably. A-12 Metric (mm) Metric (mm) U.S./Imperial 21’-5” 6528 10’-0” 3048 19’-4” 5893 9’-0” 2743 17’-2” 5232 8’-0” 2438 U.S./Imperial Pro-Bel roof anchors welded to beams before steel deck is installed. MAXIMUM SPACING 15’-1” 4597 7’-0” 2134 12’-11” 3937 6’-0” 1829 10’-8” 3251 5’-0” 1524 When rigging primary lines, tie-back lines and lifelines for a bosun’s chair, single work cage or platform, there are many scenarios having an influence on whether lines are anchored in line with or offset from the point of suspension. Ultimately, the object is to place the anchors in a manner that will suit chair and platform locations within the variable work zones while ensuring that the OSHA maximum free fall distance of 6’-0” (1.8 m) is not exceeded, in the event of a worker falling. Recognizing this, Pro-Bel employ a 25O angle placement criteria for the location of both primary support lines and secondary lifelines. This criteria will ensure that lines are rigged within 15O of the point of suspension in accordance with the ANSI/IWCA I-14.1 Window Cleaning Safety Standard. RELATED DATA For general data relating to all Pro-Bel products and services e.g. codes, installation, warranty, etc., refer to the Pro-Bel System & Equipment Introduction literature (pages G-2 to G-32). For product data relating to other fall protection systems and primary suspension equipment, see other Pro-Bel literature. EXAMPLE INSTALLATION _ RETROFIT ROOF ANCHOR 1. Small area of roof covering is removed down to concrete deck. 2. Holes are drilled into or through concrete deck to accommodate roof anchor bolts. 3. Anchor is installed using either boltthrough or chemical adhesive securement depending on access from below. 4. Watertight integrity of roof is restored using spun aluminum flashing and new roof covering (roof patch). Photo shows protected membrane roof. 5. Top of spun aluminum flashing is sealed to steel anchor using a conformable mastic tape and heat-shrink rubber collar flashing. 6. Close-up of anchor. Installation method is similar for both conventional roof (membrane above insulation) and protected membrane roof (membrane below insulation). Pro-Bel PBE Series roof anchors installed in single ply roof. A-13 S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued) In addition to window cleaning applications, Pro-Bel safety anchor systems are recommended for work such as: • construction, restoration, cleaning, sandblasting, caulking, or pointing; • fall protection for ladder work using full body harness and lanyard; and • interior or exterior industrial applications wherever maintenance personnel are exposed to falls from elevation. Pro-Bel safety anchor systems are compatible with all types of suspended maintenance equipment and can be used interchangeably for either tying off suspended equipment or fall protection lifelines. BUILDING OWNER ASSURANCE There is a shared responsibility between the building owner/employer and the window cleaning/suspended maintenance contractor. OSHA and ANSI/IWCA I-14.1 acknowledges that the building owner/ employer is the controlling employer and must assure the contractor that the system has been installed in accordance with engineered drawings, test data (when required), and equipment specifications. The building owner/employer shall provide written assurance that the installation has been annually inspected and maintained to ensure that all equipment is safe and operating as required. Budget pricing is provided on a projectto-project basis for both materials and installation, or materials only. See “Technical Consultation” at right. FREE DESIGN SERVICE The selection of window cleaning equipment is a performance oriented and highly specialized area. Also the issues of fall protection and fall arrest are serious concerns with OSHA inspection authorities. Interpreting the myriad of OSHA standards, including the separate requirements of various states, and proposed changes, is a daunting task at best. Each building is different, requiring an individual technical approach and a time commitment beyond the scope of most professional offices. Even with a high degree of knowledge and the best of intentions, the planning process can go askew. It is for these reasons that Pro-Bel provides architects and engineers with a FREE DESIGN SERVICE, and to ensure that Pro-Bel Window Cleaning/Suspended Maintenance Systems are properly specified and installed. NOTE: NO CUTTING OR WATERPROOFING REQUIRED Simply provide the following information: • roof plans (architectural & structural); • building elevations; • typical floor plans • section drawings showing parapet walls or roof edge condition and mechanical room walls; and • any other drawings pertinent to window cleaning/suspended maintenance requirements. Pro-Bel will review drawings and provide one or more concepts as required with respect to equipment, tie-back methods and similar options. In addition, Pro-Bel Enterprises Limited will provide budget pricing for window cleaning/suspended maintenance systems contingent upon design acceptance between Pro-Bel and architect/owner for the proposed project. OPTIONAL POST HEADS INCLUDE ANCHOR EYE, STANDARD RUNNER, AND REVERSIBLE RUNNER PB-01 SAFEST SOLUTION FOR OLD STEEL ROOFS FIXED TO METALLIC FRAMEWORK PB-00 PB-00 UNIVERSAL SOLUTION FOR NEW STEEL ROOFS, NO MATTER THE FRAMEWORK A-14 TECHNICAL CONSULTATION Pro-Bel Enterprises Limited provides a complete technical consultation service, available to architects, consultants, engineers, contractors, and building owners. Without obligation, Pro-Bel will provide interested parties with a proposed window cleaning/suspended maintenance design concept to OSHA requirements, including anchor and equipment locations, securement, roofing details and specifications. PRO-BEL PB-00 AND PB-01 STAINLESS STEEL BREAKAWAY ANCHORS FOR STEEL ROOFS (Safety Anchor and/or Horizontal Lifeline Support) 10” (250 mm) Refer to Pro-Bel “Digest for Building Owners, Property Managers, and General Contractors” literature for more detailed information. AVAILABILITY & COST Pro-Bel window cleaning/suspended maintenance safety systems are distributed throughout the United States, Canada and internationally. 8-3/8” (210 mm) OTHER USES Generally, Pro-Bel window cleaning/suspended maintenance anchor systems are economical or practical for all new or retrofit buildings 3 storeys and higher where windows or building facades are accessed from the roof. PB-01 Application (Breakaway Concept) In a fall arrest situation, a breakaway mechanism is activated at a pre-determined point e.g. 617 lbs (280 kg). A built-in energy absorbing device ensures the anchorage will hold in case of a fall. Concept substantially reduces load applied to securement screws. SPECIFICATION B. AISI SG-971-1996, with 2000 Supplement "Specification for Design of Cold-Formed Steel Structural Members”. SPEC NOTE: This basic guide specification (Section 11010 - Window Washing Systems) is C. devoted exclusively to safety and tie-back anchors and is written in accordance with the CSI/CSC Three Part Section Format. It must be adapted to suit the requirements of individual projects. If other equipment such as outrigger D. beams, davits, monorails, horizontal cable lifelines or other equipment is required, refer to E. appropriate Pro-Bel literature and incorporate materials and/or other clauses as required. Square brackets [ ] indicate choice, alternatives, data required or need for the specifier to make a 1.05 decision. A. PART 1 - GENERAL 1.01 General Requirements A. Comply with the conditions of the Contract and Division 1 - General Requirements. 1.02 Section Includes A. Work of this section includes the design, supply and installation of window cleaning/suspended maintenance equipment. 1.03 Related Sections A. Unloading and hoisting of equipment to roof Section  B. Cast-in-place concrete, including installation of embedded items Section  C. Precast concrete Section  D. Structural Steel Section  E. Open Web Steel Joists Section  F. Metal Deck Section  G. Catwalks Section  H. Roofing Section  I. Flashing Section  J. Sealants Section  K. Rigging access doors in walls Section  L. Guiding tracks or mullions on exterior of building Section  M. Hot & Cold water supply, faucets and drain at [every] roof level Section  N. Three phase 208 volts 60 Hertz service at [every ] roof level Section  Aluminum Association AA ADM-1-Aluminum Design Manual, 2000 and AWS D1.2-97 Structural Welding Code - Aluminum. AWS D1.1-2000 Structural Welding Code - Steel. ANSI/IWCA I-14.1-2001 Window Cleaning Safety Standard (International Window Cleaning Association). Design Requirements Design window cleaning/suspended maintenance system to suit building and in accordance with plans, specifications, standards, and regulations/codes contained in section 1.04 and 1.08. B. Locate safety and tie-back anchors to suit suspension equipment which will be used on the building with respect to items such as rigging, spacing, roof edge condition and similar items. C. Design all anchor components to provide adequate attachment to the building and suited to current window cleaning/suspended maintenance practices. Ensure compatibility with industry standard equipment. D. Ensure all anchor components conform to proper engineering principles and have been designed by a Professional Engineer qualified in the design of window cleaning/suspended maintenance equipment, its application and safety requirements. E. Design system fall arrest safety anchors to comply with the following structural requirements: 1. Fall arrest safety anchors are designed to a typical maximum fall arresting force of 1800 lbs (8.0 kN) when wearing a body harness with a factor of safety of 2 without any permanent deformation and to 5000 lbs (22.2 kN) against fracture or detachment. SPEC NOTE: For California State, substitute 5400 lbs (24 kN) in lieu of 5000 lbs. (22.2 kN). A. Manufacturer: Work of this Section to be executed by manufacturer specializing in the design, fabrication and installation of window cleaning/ suspended maintenance systems having a minimum of 5 years documented experience. B. Loading and safety assurance: Work of this Section to meet the requirements of governing codes and jurisdiction and to comply with properly engineered loading and safety criteria for the intended use. C. Insurance: Manufacturer to carry specific liability insurance (products and completed operations) in the amount of $2,000,000.00 to protect against product/system failure. D. Welding to be executed by certified welders in accordance with AWS requirements. 1.08 Regulatory Requirements SPEC NOTE: Re 1.08,A. Specify for all States other than New York and California. A. Comply with the following OSHA regulations: 1. 1910, Subpart D (Walking and Working Surfaces). 2. Appendix C to 1910 Subpart F (Personal Fall Arrest Systems). 3. "OSHA Ruling on Window Cleaning by Bosun's Chair" Memorandum to Regional Administrators from P. K. Clark, Director, Directorate of Compliance Programs. 4. 1910.66, Subpart F (Powered Platforms). SPEC NOTE: Re1.08.B and 1.08.C. Specify for New York State or California only as applicable. B. Comply with the following New York State regulations: 1. Department of Labor Advisory Standard 101 - Construction, Operation and Maintenance of Suspended Scaffolds Used for Window Cleaning and Light Maintenance. 2. Advisory Standard 111 - Hoisting Machines Used for Suspended Scaffolds. 3. Department of Labor Industrial Code Rule 21 - Protection of Persons Employed at Window Cleaning - Structural Requirements, Equipment and Procedures. C. Comply with the following California State regulaSPEC NOTE: Re 1.03,O. Specify independent 1.06 Shop Drawings and Engineering Certification tion: protected main line power and weatherproof A. Submit shop drawings showing complete layout 1. Code of Regulations, Title 8 - Industrial Hubbell twist-lock 208 volts, 3 phase, 60 and configuration of complete window cleaning/ Relations, Article 5 (Window Cleaning), Article 6 Hertz, 30 amperes receptacle (HBL2620SW, NEMA No. L6-30R for rental powered platsuspended maintenance system, including all (Powered Platforms for Exterior Building forms). Power to be located no more than components and accessories. Clearly indicate Maintenance), and Appendix C to Article 6 100'-0" (30 m) from window cleaning/suspenddesign and fabrication details, window "drops", (Personal Fall Arrest System). ed maintenance equipment location. Outlets to hardware, and installation details. experience no more than 3% voltage drop 1.09 Maintenance Data under full loading. Pro-Bel wall or roof anchors B. Shop drawings to include installation and rigging may be employed for strain relief. Contact Proinstructions and all necessary Restrictive and A. Submit 1 copy of system Equipment Manual & Bel for requirements. Non-Restrictive Working Usage Notes and Inspection Log Book, with "Initial Inspection General Safety Notes. O. Weatherproof power supply outlets with strain Certification for Use" and "Inspection Sign-Off" relief anchors Section  forms completed. C. Shop drawings to be reviewed by a professional engineer, and upon request, complete with test 1.04 References B. Submit 2 copies of a reduced plastic laminated reports. as-built shop drawing showing equipment locaA. AISC S342L-1993, with Supplement No.1 "Load tions and details. This drawing is to be posted and Resistance Factor Design Specification for 1.07 Qualifications near exits onto the roof. Structural Steel Buildings". A-15 PART 2 - PRODUCTS 2.01 Manufacturer A. This specification is based on systems currently being manufactured by PRO-BEL ENTERPRISES LTD. Toll free: 1-800-461-0575. Telephone: 905427-0616, Fax: 905-427-2545, email@example.com. B. Other manufactured products meeting this specification may be substituted provided that manufacturers show proof of product insurance. Equipment details to be approved by the architect and/or consultant. Companies, such as miscellaneous metal fabricators, who are not normally engaged in the design and manufacture of window cleaning/suspended maintenance equipment are not permitted to bid. 2.02 Equipment SPEC NOTE: List type and quantity as required. A. [ ] B. [ ] C. [ ] or modified bitumen roofs) or s.s. cap for PB series roof anchors (any type roof). E. Seamless spun aluminum flashing (for steel pier anchors): Type 6061-T6 alloy to ASTM B2212000 with deck flange flashed in to NRCA or CRCA recommendations. Seal top of aluminum flashing with [conformable mastic tape and torch applied heat-shrink rubber collar flashing] ] [detachable watertight stainless steel cap]. F. Miscellaneous bolts, nuts and washers: mild steel, Type 300W with yield strength of 44 Ksi (300 MPa), hot-dip galvanized to ASTM A123/A 123M-2000 or Type 304 stainless steel with yield strength of 35 Ksi (240 MPa). 2.04 Fabrication 2.03 Materials SPEC NOTE: Delete items not required. Safety U-bars: [Type 304 stainless steel with yield strength of 35 Ksi (240 MPa)] [mild steel, Type 300W with yield strength of 44 Ksi (300 MPa), hotdip galvanized to ASTM A123/A 123M-2000]. Ubar to be not less than 3/4" (19 mm) diameter material with 1-1/2" (38 mm) eye opening. B. Securement bolts: mild steel, Type 300W with yield strength of 44 Ksi (300 MPa), hot-dip galvanized to ASTM A123/A 123M-2000. C. Hollow steel section (HSS) piers: mild steel, Type 300W with yield strength of 50 Ksi (350 MPa). Wall thickness to suit application, [hot dipped galvanized to ASTM A123/A 123M-2000] [with ProBel Protex 3/16” (2.4 mm) thickness, black colored, two-component TPU polyurethane/polyurea coating system]. SPEC NOTE: Pro-Bel Protex is a superior substitute to galvanizing and provides exceptional impact and abrasion resistance. A. General: 1. Fabricate work true to dimension, square, plumb, level and free from distortion or defects detrimental to appearance and performance. 2. Grind off surplus welding material and ensure exposed internal corners have smooth lines. PART 3 - EXECUTION 3.01 Examination A. Examine surfaces and areas upon which the work of this Section depends. Report to the Contractor in writing, defects of work prepared by other trades and other unsatisfactory site conditions which would cause defective installation of products, or cause latent defects in workmanship and function. D. Deform threads of tail end of anchor studs after nuts have been tightened to prevent accidental removal or vandalism. SPEC NOTE: Re 3.02,E. Specify for furnish only projects if required. E. Manufacturer to assist and/or supervise installation of window cleaning/suspended maintenance equipment installed by others. F. Structural steel to receive safety anchors to have adequate bearing surface as indicated on shop drawings and/or to ensure 100% weld. 3.03 Final Adjusting and Inspection A. Adjust and leave equipment in proper working order. B. Complete "Initial Inspection - Certification for Use" form included in Equipment Manual & Inspection Log Book. 3.04 Testing A. All anchors relying upon chemical adhesive fasteners to be 100% tested on site using load cell test apparatus in accordance with manufacturer's recommendations. B. Verify site dimensions. C. Commencement of work will imply acceptance of prepared work. SERVING U.S.A. AND CANADA, COAST TO COAST. PRO-BEL ENTERPRISES LIMITED Head Office Western Office 765 Westney Road S, Ajax, ON CA L1S 6W1 [ t ] 905.427.0616 [ f t ] 800.461.0575 [ f ] 905.427.2545 [e] firstname.lastname@example.org #103-350, East Kent Ave S Vancouver, BC V5X 4N6 [ t ] 604.687.1301 [ f ] 604.687.1306 [ e ] email@example.com PRO-GRESS • PRO-BEL www.pro-bel.ca Printed in Canada A. D. Base plate and all other sections: [galvanized] 3.02 Installation [Pro-Bel Protex coated] mild steel as above with A. Install equipment in accordance with approved yield strength of 44 Ksi (300 MPa). Thickness and shop drawings and manufacturer's recommendasecurement to suit application. tions. SPEC NOTE: Re 2.03,E. Specify aluminum flashing for BUR or modified bitumen roofs only B. Co-ordinate installation with work of related (membrane above or below insulation). For sintrades. gle ply roofs, flashing to be in accordance with membrane manufacturer's instructions. Specify C. Install all work true, level, tightly fitted and flush conformable mastic tape and heat-shrink rubber with adjacent surfaces as required. collar flashing for EPB Series roof anchors (BUR
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