Installation Defect/Wind Damage to Airport Hangar

Location: ColoradoAirportHangerCollapse

Project Description:
Pie was hired to investigate the collapse of a 31,000-square-foot prefabricated metal airline hangar to determine the cause of the collapse. The hangar was under construction when the steel rigid frames collapsed during erection of metal framing members. The members experienced significant damage due to the collapse.

Pie was hired to investigate the cause of failureand to provide repair recommendations for the post-tensioned foundation and pre-fabricated metal building sections.

Pie’s Determination:
Pie’s experts determined that the collapse was the result of inadequate installation of the structural components during the erection process. The installation company did not meet the recognized installation methods. The erection sequencing did not provide adequate lateral bracing of the frames and secondary members to resist lateral loads such as wind. The structure was not adequately stabilized during the erection process.

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