A continuous L8x6x1/2 steel ledger angle anchors to the concrete tilt-up panel with 3/4-inch diameter by 7-inch long headed studs at 12 inches on center, per embed plate A-3. A 4x8 wood purlin rests in a Simpson top flange hanger, fastened to the steel ledger with two Hilti X-U powder-actuated fasteners through the hanger's nailing zone. A 3/8-inch by 5-inch A36 steel plate on each side of the purlin secures it to the ledger with three 3/4-inch diameter through-bolts. Roof sheathing sits over the purlins with an 18-gauge by 4-inch wide steel strap installed on top. Hilti X-U powder-actuated fasteners secure the strap and sheathing to the steel ledger, per the nailing pattern and spacing requirements on sheet 01S2.3.
Text on the drawing
1 TILT PANEL PER PLAN D.B.E. GRID ROOF SHEATHING PER PLAN AT EA. 4X PURLIN, PROVIDE 3/8" X 5" A36 PL. EA. SIDE W/ (3) 3/4" Ø THRU BOLTS 1/4 4X8 PURLIN @ 4'-0" SPA. W/ PURLIN FRAMING BETWEEN PER PLAN CONT. L8X6X1/2 W/ (2) 3/4"Øx 7" LONG HEADED STUDS @ 1'-0" SPA. (EMBED PL. A-3 PER PL. KEY) - FASTEN STRAP AND SHEATHING TO STEEL USING HILTI X-U POWDER ACTUATED FASTENERS - MATCH NAILING PATTERN AND SPACING SHOWN ON 01S2.3 SIMPSON TOP FLANGE HANGER - FASTEN TO STEEL LEDGER W/ (2) HILTI X-U POWDER ACTUATED FASTENERS THRU NAILING ZONE OF HANGER PROVIDE 18 GA X 4" WIDE STRAP ON TOP OF SHEATHING - FASTEN STRAP AND SHEATHING TO STEEL USING HILTI X-U POWDER ACTUATED FASTENERS - MATCH NAILING PATTERN AND SPACING SHOWN ON 01S2.3 - ALL SHEATHING FASTENERS ARE TO BE INSTALLED THRU STRAP AND INTO WOOD SHEATHING AND STRUCTURE BELOW 5" 5" 5" 2" 2 1/2" 2" 5"
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