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2206.4.4.1 Vent holes.
Concrete-filled steel columns shall have a minimum of four 1/2 in. (12.7 mm) diameter holes that shall be placed opposite each other with two at the top and two at the bottom of the column. The two bottom holes shall be rotated 90° relative to the two top holes.
2206.4.5 Approvals.
Details of column connections and splices shall be shop-fabricated in accordance with AISC 360. Concrete-filled steel columns shall be inspected by an approved agency pursuant to Chapter 17 of this code.
2207.1 General.
The design, manufacture and use of open-web steel joists and joist girders shall be in accordance with SJI 100 or SJI 200, as applicable.
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