OSHA Accident Investigation · Summary #14336267
JOIST,COLLAPSE,OVERLOADED,CONSTRUCTION,FALL,BRACING
Event description
Employee injured when overloaded joist collapses
Investigation abstract
A load of decking was placed on bar joists. The joists were welded in place, but no bridging or bracing was installed. The joists were 40 ft long, spaced 6 ft a part, and had a live load capacity of 139 lb/linear foot. The decking was 24 ft long by 3 ft wide, and weighed 4,338 lb. Employee #1 had loosened one choker and was going to undo the other one when the joist twisted and fell and the decking fell. Employee #1 fell and was hospitalized. The joist was designed to hold 1,6 68 lb; it was overloaded by 2 1/2:1.
Victim
-
#1 Hospitalized Age 30 M
- Nature of injury
- 12
- Part of body
- 14
- Event type
- 5
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 8
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.