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 SECTION 05120
STRUCTURAL STEEL
Based on NFGS-05120 (Aug 1981)
1. WORK INCLUDED: Structural steel roof beams and girders; roof
f a s c i a framings; interior columns.
MATERIALS:
2.
2 . 1 S t r u c t u r a l s t e e l : JIS G 3101, class SS 41, of the sizes,
S h a p e s and lengths indicated or required.
2.2 Columns:
JIS G 3444, class STK 41.
2 . 3 Anchors:
Fed. Spec. FF-S-325.
2 . 3 . 1 Expansion Shields:
2 . 4 Fasteners:
2 . 4 . 1 Bolts and nuts shall be suitable for the use intended and
shall conform to JIS B 1180 and B 1181, galvanized.
Flat washers shall
2 . 4 . 2 Washers: JIS B 1256 for lock washers.
b e suitable for the use intended.
2 . 4 . 3 Anchor bolts shall conform to JIS B 1178, J-Type,
galvanized.
2 . 5 Shop Primers: Shall conform to JIS K 5633 for zinc-coated
s u r f a c e s . and JIS K 5627 for uncoated ferrous surfaces.
Conforming to JIS H 8641 for general use.
2 . 6 Zinc Coating:
JASS 6, subparagraph 2.3.
2.7 Welded Electrodes and Rode:
Y-SPEC 1/89
5-7
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