Tower Crane Failure
While a tower crane was slewing with a full load of concrete at an 80 ft radius, the operator applied the emergency brake to avert collision with another crane. One of the main square tubular uprights split over a short distance and a number of the adjacent bracings had broken away. Additional cracking had developed along one of the corner welds of the upright. Sections taken through the upright in various planes revealed a laminar defect. The through-thickness crack coincided with one end of the defect. The fracture was therefore due to separation having occurred partially in the plane...
Tower Crane Failure, ASM Failure Analysis Case Histories: Construction, Mining, and Agricultural Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.conag.c9001419
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