Since structural collapse is second only to falls as a cause of fatalities in this industry, stability is essential to the successful erection of any steel structure, including single- story, multi-story, bridges, etc. This section of the standard outlines the work practices that will prevent collapse due to lack of stability. In addition, it addresses slipping/tripping hazards and certain kinds of fall hazards encountered when working on steel structures.
Structural stability must be maintained at all times during the steel erection process. [29 CFR 1926.754(a)]
Hoisting, Landing, and Placing of Metal Decking Bundles:
Roof and Floor Holes and Openings:
Covering Roof and Floor Openings:
Installation of Metal Decking:
This section addresses the hazards associated with column stability and, specifically, the proper use of anchor rods (anchor bolts) to ensure column stability. Inadequate anchor rod/bolt installation has been identified as a primary contributing factor to structural collapses.
Inappropriate or inadequate connections of beams and columns is hazardous and can lead to collapses and worker fatalities. This section sets forth performance and specification requirements for connecting beams and columns, in order to minimize the hazard of structural collapse during the early stages of the steel erection process.
Each column splice must be:
Perimeter columns must not be erected unless:
EXCEPTION: Where constructability does not allow, the above requirements can be waived. (See Appendix F to this Subpart.)
Some of the most serious risks facing the ironworker are encountered during the erection of open web steel joists, particularly landing loads on unbridged joists and improperly placing loads on joists. Based on a recent analysis of OSHA data, more than half of ironworker fatalities due to collapse are related to the erection of steel joists.
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