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A strain criterion for pull-through failures in crest-fixed steel claddings

By Dhammika P. Mahaarachchi and Mahen Mahendran

Abstract

Crest-fixed steel claddings made of thin, high strength steel often suffer from local pull-through failures at their screw connections during high wind events such as storms and hurricanes. Adequate design provisions are not available for these cladding systems except for the expensive testing provisions. Since the local pull-through failures in the less ductile steel claddings are initiated by transverse splitting at the fastener holes, numerical studies have not been able to determine the pull-through failure loads. Numerical studies could be used if a reliable splitting criterion is available. Therefore a series of two-span cladding and small scale tests was conducted on a range of crest-fixed steel cladding systems under simulated wind uplift loads. The strains in the sheeting around the critical central support screw fastener holes were measured until the pull-through failure occurred. This paper presents the details of the experimental investigation and the results including a strain criterion for the local pull-through failures in crest-fixed steel claddings

Topics: 090506 Structural Engineering, Crest-fixed steel cladding systems, Screwed connections, Local pull-through failures, Wind uplift loads, Strain criterion, Experiments
Publisher: Pergamon/Elsevier
Year: 2009
DOI identifier: 10.1016/j.engstruct.2008.09.013
OAI identifier: oai:eprints.qut.edu.au:30251

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