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00-498-007i i All I STEEL JOIST 'm 115" L/F m 30- ia'O.C. (TYP) A S -1 ; '--NEW A/C UNIT (I N� i ri N PARTIAL ROOF PLAN STEEL JOISTS ROOF CURB ANCHORING DETAIL SCALE : 3/4' = 1' -0' 2 A'x2'xl /4' ROOF WELD OF CC ADDED TO BOT CHORD XISTING JOISTS -E SUPPORTS (TWO) TOP CHORD OF JOISTS BITS ON 3 JOISTS MIN STEEL JOIST REINFORCING DETAIL CURBS TO BE ATTACHED W/3/4'0 BOLTS MAX. 3'-0' O.C. EXI: 2'71 W 2 �'xVxl /4' ROOF WELD ALL f OF CONTAC PREFAB ROOF CURB WITH FLASHING AND COUNTER FLASHING BOLT THRU WOOD BLOCKING AND ANGLE STEEL FRAME PRE55URE TREATED WOOD BLOCKING ALL AROUND CURB PERIMETER EXISTING JOISTS ANGLE SUPPORTS (TWO) D TO TOP CHORD OF JOISTS RT UNITS ON 3 JOISTS MIN DUCT SEE FLOOR PLAN FOR SIZE A/C MOUNTING DETAIL CURBS TO BE ATTACHED W1314'0 BOLTS w Al, 11 -1 O.C. PER SIDE PER SIDE SCI,' - 0' CHORD OF .�LVISIONS: z Q Q w ry W —J 0 cn z 0 I— U uW O z Q z Q —1 z ry Q C/) W ry Q N N a W z Q I� 0 >w ry 0 w- in � z� 0-)� 000 Lc) u! L j (n I� N 0 co N O Lo ° CL N O ; N — W5E CT I ON N z r)(09 W „" r U Q ° SCALE 1112' = 1-0' z N o Uww - � -xm Q STRUCTURAL STEEL: �z- Q o. �, -1 ,n Q j •�o W 1. ALL STRUCTURAL STEEL ROLLED 5HAPES, BARS AND PLATES SHALL w cn U COMPLY WITH ASTM A3(o : 51A, FY = 36 <51, U.O.N. p 0 o Q o 7) U(n tn�vw 2. STRUCTURAL TU51NG (TS) SHALL COMPLY WITH ASTM A500, GRADE B, FY = 46 KS I. 3. STEEL PIPE SHALL COMPLY WITH ASTM A53, TYPE 5, GRADE B, FY = 35 <51. ffil I 4. ALL BOLTS SHALL BE 3/4" DIAMETER ON 13116" ROUND HOLES, UNLESS OTHERWISE NOTED. 5. ANCHOR BOLTS SHALL COMPLY WITH ASTM 4301. 6. WELDING ELECTRODES SHALL BE E / -10 SERIES, LOUD HYDROGEN. P• ••'••CAT %o I • I .� •. Oilf� DATE: 9 -20 -00 SCALE: AS SHOWN DRAWN: E. A. S. SHEET S -1 OF 1