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133297-Catalog 133297-Catalog 133297-Catalog Batch9 unilog cesco-content
108378-Catalog 108378-Catalog 108378-Catalog 786364 Batch10 unilog cesco-content
109118-Catalog 109118-Catalog 109118-Catalog 786364 Batch7 unilog cesco-content
2014-09-05
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GENERAL ENGINEERING CATALOG – NO. 17 A PART OF Unistrut is the original metal framing system featuring a unique weldless connection. The Unistrut system eliminates welding and drilling, and is easily adjustable and reusable for infinite configurations. Over time, our brand has evolved from a simple connection concept to a comprehensive engineered building and support system featuring a robust line of channels, fittings, fasteners, hangers, pipe clamps, and accessories. Backed by our worldwide network of engineering and distribution centers, we provide customers with total-resource capability, making Unistrut the brand everyone asks for by name. The Unistrut World of Support starts with our network of Unistrut Service Centers across the nation. T he Unistrut World of Support starts with our network of Unistrut Service Centers across North America. They go far beyond providing local product inventories... by offering complete application solutions, based on experience gained from thousands of projects worldwide. It’s the kind of knowledgeable assistance that can help save time and cost now, and simplify change in the future. Technical help? No one knows the engineering side of Unistrut support systems like your local Unistrut team. And if it’s special fabrication, cutting or custom finishing you want, the pros at your local Unistrut Service Center will make it happen...quickly, efficiently, economically. So when it’s help you need, call your Unistrut Service Center— the quickest way to unlock Unistrut’s World of Support. TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . 2-20 Unistrut Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Unistrut Metal Framing Systems . . . . . . . . . . . . . . . . . . . . . . . . 6-9 Quality Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Materials and Finishes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 13 Design Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 15 Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Reference Tables and Data . . . . . . . . . . . . . . . . . . . . . . . . . 17 - 18 Guide Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 New Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 15»8" CHANNEL . . . . . . . . . . . . . . . . . . 21-62 Channel Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 P1000 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 29 P1100 (14 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 - 32 P2000 (16 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 - 35 P3000 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 - 38 P3300 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 - 41 P4000 (16 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 - 44 P4100 (14 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 - 47 P4400 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 - 50 P4520 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 - 53 P5000 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 - 56 P5500 (12 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 - 59 Closure Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 End Caps and Frame Caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 Lateral Bracing Load Reduction Chart & Bearing Loads . . . . . . .62 TELESTRUT® SYSTEM . . . . . . . . . . . . 63-70 Telescoping Tube. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 - 67 Connection Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69 Specialized Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Post Bases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 - 69 Cutting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 NUTS & HARDWARE . . . . . . . . . . . . . 71-76 Channel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 - 73 Top Retainer Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75 Stud Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 - 76 Threaded Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75 GENERAL FITTINGS . . . . . . . . . . . . . 77-106 Flat Plate Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 - 82 Ninety Degree Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 - 85 Angular Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 “Z” Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 “U” Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 - 88 Wing Shape Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 - 90 Post Bases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 Brackets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 - 93 Brace Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Beam Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 - 101 Trolleys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 Special Application Fittings . . . . . . . . . . . . . . . . . . . . . . . 103 - 104 Seismic Retrofit Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . 104 - 106 PIPE/CONDUIT SUPPORTS. . . . . . . 107-126 Pipe/Conduit Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 - 111 Unicushion® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Pipe & Tubing (Cush-A-Clamp®) Clamps. . . . . . . . . . . . . 113 - 116 Pipe Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 Pipe Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 - 119 Pipe Brackets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Reference Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 - 126 ELECTRICAL FITTINGS . . . . . . . . . . 127-138 Electrical Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 - 130 Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131 Fixture Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131 Accessories and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . .132 Junction Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132 In-Channel Joiners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133 Swivel Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133 Cable Entrance Tubing and Accessories . . . . . . . . . . . . . 134 - 136 Electrical Fittings Technical Data . . . . . . . . . . . . . . . . . . . 137 - 138 CONCRETE INSERTS. . . . . . . . . . . . 139-146 Heavy-Duty Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141 Standard-Duty Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . .142, 144 Light-Duty Inserts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143 Spot Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144 Deck Inserts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146 SOLAR COMPONENTS. . . . . . . . . . 147-150 Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148 Solar Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149 Key Advantages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 UNIPIER® . . . . . . . . . . . . . . . . . . . . 151-168 Sleeper Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 - 154 Strut Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 - 158 Conduit Supports Mounted Support, Polycarbonate Base . . . . . . . . . . . . . . . . . . .157 Elevated Support, Polycarbonate Base . . . . . . . . . . . . . . . . . . .157 Elevated Support, Steel Base . . . . . . . . . . . . . . . . . . . . . . . . . .158 Gas and Mechanical Supports Mounted Support, Polycarbonate Base . . . . . . . . . . . . . . . . . . .158 Mounted Support, w/Roller Polycarbonate Base . . . . . . . . . . . .158 Elevated Support, w/Roller, Polycarbonate Base . . . . . . . . . . .159 Elevated Support, w/Roller, Steel Base . . . . . . . . . . . . . . . . . . .160 Accessories Spacer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160 Support Pads, Deck Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . .160 Pipe Hanger Bases, Polycarbonate and Steel. . . . . . . . . . . . . .161 Fabricated Supports Single Base Trapeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162 Double Base Trapeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163 Heavy Duty Double Base Trapeze. . . . . . . . . . . . . . . . . . . . . . .163 Double Base Duct Support . . . . . . . . . . . . . . . . . . . . . . . . . . . .163 Mechanical Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164 Bridge Cross-Over, Walkway, Service Platform or Ramp . . . . .164 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165 Pipe Diameters and Loading . . . . . . . . . . . . . . . . . . . . . . . . . . .166 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167 – 168 11»4" FRAMING SYSTEM . . . . . . . . . 169-180 A1000 (14 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 - 172 A3300 (14 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 - 174 A4000 (19 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 - 176 A5000 (14 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177 Channel Nuts and Closure Strips . . . . . . . . . . . . . . . . . . . . . . .178 Flat Plate Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 - 179 Ninety Degree Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 - 180 Angle and Wing Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . .179 “U” Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 Pipe / Tubing Clips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 Brackets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180 13 »16" FRAMING SYSTEM . . . . . . . . 181-190 P6000 (19 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 - 184 P7000 (19 Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 - 186 Channel Nuts, End Caps, and Closure Strips . . . . . . . . . . . . . .187 Flat Plate Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 - 188 Ninety Degree Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188 Angular Fittings, Wing Shape Fittings . . . . . . . . . . . . . . . 189 - 190 “Z” Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .189 “U” Shape Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 - 190 Special Application Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . .190 Beam Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190 Tubing Clips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190 FIBERGLASS SYSTEM. . . . . . . . . . . 191-206 Heavy Duty Channel (Flange Profile) . . . . . . . . . . . . . . . . . . . .193 Light Duty Channel (Flange Profile). . . . . . . . . . . . . . . . . . . . . .194 Heavy Duty Channel (SST Profile) . . . . . . . . . . . . . . . . . . . . . .195 Nuts & Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 - 198 Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 - 200 Pipe Clamps and Straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201 Clevis Hangers and Channel Inserts . . . . . . . . . . . . . . . . . . . . .202 Beam Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203 Power Rack Stanchions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203 Chemical Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 204 - 205 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206 SPECIAL METALS . . . . . . . . . . . . . . 207-212 Stainless Steel Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209 Stainless Steel Nuts and Closure Strips . . . . . . . . . . . . . . . . . .210 Aluminum Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 - 212 Aluminum Closure Strips and End Caps . . . . . . . . . . . . . . . . . .212 PRIMEANGLE™ . . . . . . . . . . . . . . . . 213-218 PrimeAngle™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215 PrimeAngle™ Technical Data . . . . . . . . . . . . . . . . . . . . . 216 - 218 UNITED INTERLOCK® GRATING. . . 219-234 Ease of Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220 Plank Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 - 222 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 - 225 Heavy Duty Stair Treads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226 Design and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227 Plank Loads and Deflections . . . . . . . . . . . . . . . . . . . . . . 228 - 233 Architectural Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .234 ROOFWALKS® . . . . . . . . . . . . . . . . 235-236 Roofwalk® Grating Planks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .236 Hardware for Membrane, Foam or Coated Roof . . . . . . . . . . . .236 Standing Seam Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .236 INDEX . . . . . . . . . . . . . . . . . . . . . . . 237-242 Unistrut Metal Framing – The Original Strut System Featuring The Unique Weldless Connection Hex-head bolt connects fitting to channel as it is threaded into spring nut. Chamfer in the nut eases starting of the bolt. Nut teeth create a strong, vise-like grip when tightened against the inturned channel edges. Channel edges and the nut's tapered grooves act as guides to provide fool-proof alignment of connection. Nut teeth grip the channel's inturned edges, tying the channel sides together in a "box" configuration for added strength. Spring allows precision placement anywhere along channel length, then holds the nut in position while the connection is completed. 6 Unistrut – The Original Metal Framing Unistrut Connection Strong, Fast, Economical and Adjustable Insert the spring nut anywhere along the continuous slotted channel. The rounded nut ends permit easy insertion. 2 1 A 90° clockwise turn aligns the grooves in the nut with the inturned edges of the channel. Fittings can be placed anywhere along the channel opening, permitting complete freedom of adjustment. The need for drilling holes is eliminated. 3 Insert the bolt through the fitting and into the spring 1 nut. (See illustration 5 for end view showing the nut in place) 4 Q 100% Adjustable Q 100% Reusable Q No Welding Q No Drilling Q No Special Tools Additional channel sections can now be bolted to the fitting already in place by following procedure described in steps 1–3. 5 Tightening with a wrench locks the serrated teeth of the nut into the inturned edges of the channel, to complete a strong, vise-like connection. Unistrut – The Original Metal Framing 7 Unistrut Service Centers Serving Design Professionals for Over 85 Years Unistrut products have been helping to build a better world since 1924. Used extensively in nuclear, industrial and commercial construction markets for over 85 years, Unistrut Metal Framing has set the standard for product design, quality and performance. The initial Unistrut concept — a simple spring nut and bolt connecting a fitting to a continuous slotted channel — has evolved into a comprehensive engineered building and support system. Unistrut® — The Original Metal Framing System There is only one Unistrut Metal Framing System. It incorporates the innovative product improvements that our research and development group has created to give you the most complete and flexible support system available. Backed by our worldwide network of engineering and distribution centers, Unistrut provides customers with totalresource capability. A North American network of Unistrut Service Centers — stocking standard Unistrut components — are located in principal cities to serve you quickly and directly. Many Service Centers are equipped to design and supply drawings for any type of metal framing application and also offer fabrication and installation services. This catalog is a comprehensive presentation of Unistrut Metal Framing components plus technical data required by design, specification and construction professionals. ® 8 Unistrut – The Original Metal Framing Unistrut Framing Systems THE MOST COMPLETE METAL FRAMING SYSTEM — FOUR CHANNEL-WIDTH OPTIONS Adjustability, demountability and reusability are engineered into each of the four Unistrut channel series. Each series offers channels of varying depth and gage plus a complete line of fittings and accessories. 15»8” (41.3 mm) width 5 1 »8" width Series Channel 1 5⁄ 8" VARIOUS HEIGHTS AVAILABLE Designed to carry the heaviest loads and provide the widest variety of applications, the 15»8" series has become the accepted standard for use in mechanical, electrical and general construction applications where supports and attachments must meet the highest strength requirements. 11»2” (38.1 mm) width 11»2" width Series Channel 1 1⁄ 2" VARIOUS HEIGHTS AVAILABLE A framing system designed for medium to heavy loads, the 11»2" series offers hole spacing and fittings where all parts fit together, no matter where they’re used, or at what angle. 11»4” (31.8 mm) width 11»4" width Series Channel 1 1 ⁄ 4" VARIOUS HEIGHTS AVAILABLE A framing system designed for medium loads, the 11»4" series is especially suitable for use in the OEM, commercial and display markets. It maintains a lightness in scale and a clean line that makes it aesthetically pleasing as well as functional. 13 13 »16" width Series Channel 13 ⁄16" VARIOUS HEIGHTS AVAILABLE Unistrut – The Original Metal Framing »16” (20.6 mm) width A unique half-size reduction of the 15»8" channel-width series, this smaller channel size can be used to carry light loads economically in applications such as instrumentation, retail displays and lightduty laboratory supports. It also provides the flexibility found in all Unistrut framing systems. 9 Quality Assurance and Traceability PRODUCT LOAD TESTING Product testing is an important part of Unistrut’s Quality Assurance Program. We utilize our own testing facilities, as well as those of independent testing laboratories, to determine design loads with proper and adequate safety factors. These design loads are indicated, where applicable, throughout the catalog. Loads are based on AISI Specification For The Design Of Cold-Formed Steel Structural Members, 2007 Edition. Destructive and non-destructive testing procedures are used to test for variables such as corrosion, conductivity, electro-static dissipation, ultra-violet resistance, wind resistance, dimensional accuracy, material integrity and slip resistance. In short, if there’s a specification to meet, Unistrut will develop a test to quantify and verify it. Using design properties of the Unistrut framing members, load data given in this catalog, and/or design procedures of the American Iron & Steel Institute Specification For The Design Of Cold-Formed Steel Structural Members, 2007 Edition, it is possible to design any type of structure within the capabilities of the system. Assemblies or connections that cannot be calculated using provisions of the AISI specifications must be established by applicationspecific tests. QUALITY PROGRAM Unistrut is committed to being the “best” in the metal framing industry. In order to meet this goal, Unistrut has adopted the philosophy of “Zero Defects and Continuous Improvement”. This means on-going reviews of our manufacturing processes, operating procedures and quality systems to find ways of improving efficiency, productivity and quality. It means establishing process controls and problem-prevention techniques to ensure that superior quality is built into every Unistrut product. Our drive to be the best includes not just quality products, but on-time delivery and prompt resolution of customer needs and concerns. At Unistrut, quality is number one. TRACEABILITY Unistrut channel is stamped with a numeric code that allows traceability to the origin of the steel 10 Unistrut – The Original Metal Framing Materials and Finishes MATERIAL Framing Members Nuts and Bolts Fittings Unistrut channels and continuous inserts are accurately and carefully cold-formed to size from low carbon strip steel. One side of the channel has a continuous slot with inturned edges. Secure attachments may be made to the framing member with the use of hardened, toothed, slotted nuts which engage the inturned edges. Unistrut nuts are made from steel bars. After all machining operations are complete, they are thoroughly case hardened. Nuts are rectangular with ends shaped to permit a quarter turn clockwise in the framing member after insertion through the slotted opening in the channel. Two toothed grooves in the top of the nut engage the inturned edges of the channel and, after bolting operations are completed, will prevent any movement of the bolt and nut within the framing member. Unistrut fittings, unless noted otherwise, are punch-press made from hot rolled, pickled and oiled steel plates, strip or coil, and conform to ASTM specifications A575, A576, A635 or A36. The fitting steel also meets the physical requirement of ASTM A1011 SS GR 33. The pickling of the steel produces a smooth surface free from scale. Raw steel shall conform to the following ASTM specifications: GAGE 12 14 16 19 FINISH ASTM NO. GR & HG A1011 SS GR 33 PG A653 GR 33 GR & HG A1011 SS GR 33 PG A653 GR 33 GR & HG A1011 SS GR 33 PG A653 GR 33 GR A1008 All bolts and nuts have Unified coarse screw threads. The standard framing nut is 1»2" and conforms to ASTM A576 GR 1015 modified and A1011 SS GR 45. Screws conform to SAE J429 GR 2. WEIGHTS AND DIMENSIONS Weights given for all materials are approximate shipping weights. All dimensions are subject to commercial tolerance within published specifications. ® WE RESERVE THE RIGHT TO MAKE SPECIFICATION CHANGES WITHOUT NOTICE. WHILE EVERY EFFORT HAS BEEN MADE TO ASSURE THE ACCURACY OF INFORMATION CONTAINED IN THIS CATALOG AT THE TIME OF PUBLICATION, WE CANNOT ACCEPT RESPONSIBILITY FOR INACCURACIES RESULTING FROM UNDETECTED ERRORS OR OMISSIONS. THE BLUE COLOR USED ON UNISTRUT COMPONENTS ILLUSTRATED IN THIS CATALOG IS FOR GRAPHIC ENHANCEMENT ONLY, AND DOES NOT REPRESENT ACTUAL PRODUCT COLOR. Unistrut – The Original Metal Framing 11 Finishes Perma-Green® III The performance of Unistrut’s Perma-Green III far exceeds that of conventional finishes. And compared to competitive “high-performance” coatings, Perma-Green III provides superior resistance to chalking, checking and fading and is far less vulnerable to common acidic atmospheres, solvents and alkalis. First stage hot alkaline cleaning of channel. Second stage hot alkaline cleaning of channel. Channel is rinsed with clean water to remove cleaning solution. Conditioning rinse. Second stage deionized water rinse to prepare channel for E-Coating. Final deionizer water rinse. Electro-deposition Post rinse spray. tank applies the epoxy PermaGreen III to all surfaces. Just as important, Perma-Green III is the result of an environmentally neutral process that virtually eliminates the toxic metals commonly found in competitive paint-based finishes. Channel is phosphated to produce a phosphate coating. Channel is rinsed to remove excess phosphate solution. Sealer is applied. First stage deionizer water rinse to remove excess sealer. Post rinse dip tray. Post rinse spray. Virgin deionized water halo rinse. The oven cure process dries the channel and cross links the epoxy thermoset resins at 375° F. PERMA-GREEN® III (GR) TECHNICAL DATA Sealer Phosphate Prepared Steel 12 E-Coat STEEL SUBSTRATE PREPARATION Ten stage continuous cleaning, phosphate process. Substrate after “prep”: sealed phosphate conversion coating. COATING Thermoset epoxy Color: Federal Highway Green Color Tolerance Chart PR Color No. 4 Hardness: 2H. Coating Process: Cathodic Electrodeposition. PERFORMANCE Salt Spray: Scribed: exceeds 400 hours per ASTM B117. (1»8" creep) Unscribed: exceeds 600 hours per ASTM B117. (6% red rust) Chalk: Nominal at 1,000 hours per weatherometer G-23 test. Checking: None at 1,000 hours per weatherometer G-23 test. Fade: Less than 50% compared to standard epoxy E.C. coatings. ENVIRONMENTAL ISSUES Formulated as a “heavy metal”-free coating (trace elements only). Outgassing in service: essentially none at 350°F for 24 hours. Unistrut – The Original Metal Framing Finishes PLAIN (PL) Electroplated Zinc (EG) Zinc Coating Plain finish designation means that the channel retains the oiled surface applied to the raw steel during the rolling process.The fittings have the original oiled surface of the coil or strip steel material. ASTM B633, Type III SC1 or SC3 Unistrut products are available in four types of zinc coatings: Pregalvanized Zinc (PG) ASTM A653 3# -ILD HAS A :INC COATING OF and is recommended for dry indoor use. SC1 is the standard finish thickness. 3# 3EVERE HAS A :INC COATING OF 0.5 mill and is the standard finish thickness only on UL Listed raceway products. Pregalvanized steel is zinc coated by a hot dip process. Steel strip from a coil is fed through a continuous zinc coater which cleans, fluxes and coats the steel with molten zinc. After cooling, the steel is recoiled. The pregalvanized zinc coating conforms to a G-90 thickness designation per ASTM A653. The zinc thickness is .75 MIL or .45 oz./sq. ft. of surface area. In the electroplating process, the part to be zinc coated is immersed in a solution of zinc ions. An electric current causes the zinc to be deposited on the part. s %LECTROPLATED %' s 0ERMA 'OLD :$ s 0REGALVANIZED 0' s (OT $IP 'ALVANIZED (' :INC OFFER TWO TYPES OF PROTECTION s Barrier: The zinc coating protects the steel substrate from direct contact with the environment. s Sacrificial: The zinc coating will protect scratches, cut edges, etc. through an anodic sacrificial process. Perma-Gold (ZD) The service life of zinc coating is directly related to the zinc coating thickness as shown below. ASTM B633, Type II SC3 Similar to the EG process except in a yellow color. Comparison of Zinc Finishes (OT $IP 'ALVANIZED Pre-galvanized Electro-Galvanized (SC1) Electro-Galvanized (SC3) Perma-Gold (SC3) In hot dip galvanizing, the finished part is immersed in a bath of molten zinc. This method results in complete zinc coverage and a thicker coating than pregalvanized or plated zinc. Life of Protection vs. Thickness of Zinc and Type of Atmosphere * Service Life is defined as the time to 5% rusting of the steel surface 80 The zinc coating is typically 2.6 MIL or 1.5 oz./sq. ft. of surface area. When specific applications require other than standard available finishes, special finishes can be supplied per customer requirements. 11 21 32 43 54 65 75 86 97 108 118 129 70 L RA RU Service Life, Years* SPECIAL COATING 2.6 MIL 0.75 MIL 0.2 MIL 0.5 MIL 0.5 MIL As shown in the graph, when the zinc coating is double, the service life is double under most conditions. HOT DIP GALVANIZED (HG) ASTM A123 OR A153 This is the coating of choice for applications where severe corrosion is a design factor. Zinc Thickness Finish This coating is offered on Unistrut channel and tubing and is a well-proven, time-tested performer for indoor and outdoor applications. For severe corrosion applications, hot dip galvanizing, as described below, is a good alternative. 60 E RIN MA INE L ICA MAR OP TR RATE E P TEM BAN L UR A B U TRI S DUS Y IN L E RAT 50 40 30 DE MO 20 IAL USTR Y IND HEAV 10 Oz. of Zinc/Sq. Ft. of Surface .25 .50 .75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 0.4 0.8 1.3 Thickness of Zinc in Mils Unistrut – The Original Metal Framing 1.7 2.1 2.6 3.0 3.4 3.8 4.2 4.7 5.1 13 Design Fundamentals BEAMS Beams are structural members loaded at right angles (perpendicular) to their length. Most beams are horizontal and subjected to gravity or vertical loads, e.g. a shelf support. However a vertical member can act as a beam under certain conditions, such as a curtain wall mullion subjected to wind loading.The bending moment developed in a beam is dependent on: (a) The amount of load applied, (b) The type of loading applied, and (c) The support conditions SUPPORT CONDITIONS CONTINUOUS BEAM Any simple beam that is supported at one or more intermediate points is a continuous beam. A mezzanine joist that passes over three or more columns is an example of a continuous beam. SUPPORT CONDITIONS FIXED-END BEAM BEAM LOADING - POINT LOAD A load concentrated onto a very small length of the beam is a point load. BEAM LOADING - UNIFORM LOAD Supports that prevent the beam from rotating into a natural deflected curve produce a fixed-end beam. A welded end connection to very rigid support produces a fixed-end beam. SUPPORT CONDITIONS CANTILEVER BEAM A load spread evenly over a relatively long length of the beam is a uniform load. Point and uniform loads can be placed on a beam in any combination. A series of point loads can approximate a uniform loading. The load charts and tables are based on a uniform load unless identified otherwise. A cantilever beam is a fixed-end beam that is supported at one end only, while the other end is unsupported. Unistrut brackets are examples of cantilever beams. DEFLECTION SUPPORT CONDITIONS - SIMPLE BEAM A simple beam has supports that prevent movement left and right, or up and down, but do not restrain the beam from rotating at the supports into a natural deflected curve. Most Unistrut Metal Framing connections produce simple beams. The load charts and tables are based on simple beams unless identified otherwise. 14 The stiffness of the beam’s cross-sectional shape is measured by its “Moment Of Inertia” or "I". The larger a beam’s "I", the stiffer it is and the less it will deflect. A beam’s "I" can change for each major axis. The "I" of both major axes (I 1-1 and I 2-2) are provided. The stiffness of a beam’s material is measured by its “Modulus of Elasticity” or "E". The larger a material’s "E", the stiffer it is and the less it deflects. For example, steel is about three times stiffer than aluminum and as a result, deflects only one-third AS MUCH $O NOT CONFUSE STIFFNESS WITH strength. Two materials may have identical strengths yet still have different "E’s". A high-strength aluminum may be as strong as steel and still deflect three times as much. The load charts and tables give calculated deflections for the loads shown. In many cases, a final design will be determined by the maximum deflection, not the maximum load. BENDING MOMENT Is it strong enough? This is the final consideration for any beam. A beam must not only hold up the anticipated loads, but must also have sufficient additional capacity to safely hold unforeseen variations in applied loads and material strengths. This additional capacity is called a safety factor and is usually regulated by the various design codes and standards. A beam’s strength is usually measured by an allowable bending moment or an allowable stress. The traditional approach is the allowable stress method, where a beam is determined to have a maximum allowable stress (in pounds per square inch) which is not to be exceeded. The approach of the current AISI “SpecilCATION &OR