A platform crane boom collapsed during a routine lift. HEA attributed the failure to the collapse of the dual mast members, causing the lattice boom to sequentially collapse. HEA performed further inspections, which revealed corrosion related deterioration in a few cranes bails, bridles, masts and boom lattice members. The cranes were de-rated until repairs could be made.
Crane Rail Finite Elememt Analysis
A cantilevered steel rail with a unique support configuration and an atypical cross section required a more detailed...