L STEEL WORKS (4A00)
L-1 "Steel :
1. The quality of steel to be used as the basis of design shall be Grade 43A in accordance with BS 4360: Part 2, or alternatively ASTM A36 or JIS G3101 shall be applied. When applying JIS G3101, weldable structural grade SS41 shall be used.
2. Structural Pipe – JIS G3444, STK41
3. Structural Tubing – JIS G3466, STKR41"
L-2 "Steel Handrail :
1. All bolting shall be 16 diameter (A307 or JIS B1180) unless otherwise noted.
2. Railing connections to concrete shall be with expansion or epoxy anchors.
3. A minimum hand clearance of 75 is required between top rail and any other object (columns, beams, piping)
4. Handrail shall extend around edges of all platforms, landing etc. As indicated and shall be bolted to supporting members.
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