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Three ironworkers die and one was seriously injured in the collapse of a structural steel framework in Ohio, May 22, 1990.

Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, FACE 90-33, 1990 Dec; :1-7
This report concerned the deaths of a 44 year old male journeyman ironworker, a 24 year old male journeyman ironworker, and a 24 year old male apprentice ironworker who were killed when the structural steel skeleton of a four story building under construction partially collapsed. Another journeyman ironworker was seriously injured. The employer was a subsidiary of a large steel fabrication company specializing in structural steel erection. On the day of the incident the crew had attached a lifting device to a roof beam to use the beam as a support for raising a floor section to a level position before bolting it in place at the fourth floor level. However, the roof beam was a cantilever that had been temporarily attached to a structural column with only three bolts, rather than the eight bolts required to permanently secure it. The load exceeded the shear strength of the three bolts, causing the structure to partially collapse while the crew was hoisting the floor section. The apprentice and one of the journeymen who were on the roof beam and who were tied off to it were thrown to the ground. The third worker landed on the second floor and was crushed by falling steel. It is recommended that a project construction process plan be developed detailing proper construction sequences and associated safe work procedures; that job specific employee training programs be implemented to address job hazards and methods of control; that on site safety inspection programs be established, and that project staff safety and health responsibilities be delineated.
NIOSH-Author; Region-5; FACE-90-33; Accident-analysis; Construction-industry; Traumatic-injuries; Construction-workers; Iron-workers; Construction-Search
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Field Studies; Fatality Assessment and Control Evaluation
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National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division