Multi-Story Structures
Rules for steel erection safety for multi-level structures can be found in OSHA Standard 1926.754(b).
Golden Gate Bridge Safety
Permanent floors: Permanent floors must be installed as the erection of structural members progresses, with no more than 8 stories between the erection floor and the upper-most permanent floor.
Unfinished bolting or welding: Unfinished bolting or welding above the foundation (or the uppermost secured floor) is not permitted to exceed the lesser of:
- 4 floors
- 48 feet (14.6 m)
Exceptions are allowed where structural integrity is accounted for in the design.
Safety Nets and Floors: Safety nets or a fully planked or decked floor must be maintained directly under any erection work being performed, within the lesser of:
- 2 stories
- 30 feet (9.1 m)
Knowledge Check Choose the best answer for the question.
3-3. When erecting multi-level structures, how many stories are allowed between the floor being erected and the upper-most permanent floor?
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