The first reason cranes fail is improper assembly or disassembly. Most cranes on construction sites are temporary. They're not staying when the job is done. ... A recent collapse in Seattle happened when a team disassembling a tower crane prematurely removed the pins holding sections of the tower together.
Why do tower cranes collapse?
“Through decades of experience, IUOE Local 793 and IUOE Local 793's training division, Operating Engineers Training Institute of Ontario (OETIO), know that crane accidents happen due to three main reasons: mechanical failure/maintenance deficiencies, operator error, and weather/environmental conditions,” said Mike ...
What are the main causes of crane accidents?
OSHA's analysis of crane accidents identified the major causes of crane accidents as:
- boom or crane contact with energized power lines (nearly 45% of the cases)
- under the hook lifting device.
- overturned cranes.
- dropped loads.
- boom collapse.
- crushing by the counter weight.
- outrigger use, falls and rigging failures.
