Codes and Standards

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PART 1926 -- Safety and Health Regulations for Construction

1926.751 - Structural steel assembly

(a)

During the final placing of solid web structural members, the load shall not be released from the hoisting line until the members are secured with not less than two bolts, or the equivalent at each connection and drawn up wrench tight.

(b)

Open web steel joists shall not be placed on any structural steel framework unless such framework is safely bolted or welded.

(c)

(c)(1)

In steel framing, where bar joists are utilized, and columns are not framed in at least two directions with structural steel members, a bar joist shall be field-bolted at columns to provide lateral stability during construction.

(c)(2)

Where longspan joists or trusses, 40 feet or longer, are used, a center row of bolted bridging shall be installed to provide lateral stability during construction prior to slacking of hoisting line.

(c)(3)

No load shall be placed on open web steel joists until these security requirements are met.

(d)

Tag lines shall be used for controlling loads.

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