07-E T-Hangar Contract Award - Laserfiche WebLink

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B. Rafters shall be steel wide flange beams "W" shaped ASTM A36 and shall be pre-punched for purlin connections, door truss, and interior column connections. Rat~ers shall be complete with factory welded ridge splice plates, and designed to support specified loads. C. Door truss shall span width of sliding hangar door opening and shall be shipped full length for ease of construction. Door tress design shall be integral with door design. Door truss shall be factory welded with chords 4" x 4" x 1/8" minimum square structural welded steel tube ASTM A500 GR.B and 3" x 1" x 1/8" minimum diagonal webbing. Door truss shall be pre-punched for column connection. D. Door columns shall be manufactured of steel wide flange beams "W" shapes ASTM A36 and shall be W6 x 15 pounds per foot minimum with pre-welded base plate and door truss saddles. E. Interior column shall be square structural welded steel tube ASTM A500 with pre-welded base plats and girt clips. 2.3 SECONDARY FRAMING A. Secondary framing shall be the structural members that carry the loads to the primary framing systems; and shall include the purlins, girts, wind bracing and miscellaneous structural mem- bers. B. Purlins shall be nominal 8" deep "Z" shaped members; and shall be manufactured of 16, 14, or 12 gauge steel designed for specific loads, and shall be fabricated of material based on the re- quirements of ASTM A570 or ASTM A572 as applicable. C. Exterior wall girts shall be fabricated from 4" square structural weld steel tube or rolling formed cee sections of ASTM A570 or ASTM A572 as applicable. D. Interior partition girt shall be fabricated from 4" x 16"ga. red oxide steel "CEE" sections. E. Provide wind bracing, rafter bracing, sheeting angles where required. 2.4 CONNECTIONS A. Structural field connections shall be bolted (unless otherwise noted). All primary bolted con- nections, as shown on manufacturer's drawing, shall be furnished with high strength bolts con- forming to the physical specifications of ASTM A-325 or shall be Grade 5. All Grade 5 bolts shall be zinc plated. 2.5 PR1ME COAT A. All structural members shall be shop primed red oxide. 2.6 ROOF PANELS A. Roof sheets shall be 26 ga. galvalume coating conforming to ASTM specification A-792 with panel configuration with I-1/8" min. high major ribs 12" on center. Panel coverage shall be 36" and shall be furnished full length from building cave to ridge purlin. A pre-formed ridge cap shall be provided. B. Galvalume coating (white) shall be as provided by Bethlehem Steel Corporation Bethlehem, PA 18016, or an accepted equal. City of Paris, Texas 13125 - 6 T-Hangar Building