Failure Mechanisms of Roof Cladding under Fluctuating Wind Loads

风对低层建筑的破坏会对社区造成破坏，并造成经济损失。因此，改善最脆弱的部分（即屋顶）将带来国家利益和相关的经济利益。目前，在飓风地区使用的屋顶系统被评估为北领地的DABM和其他地方的TR440，要求同一产品在两种不同的（不令人满意的）规格下进行测试。这是由于对覆层风致疲劳的认识有限。该项目将为理解和减少包层疲劳提供框架。一个现实的单一测试也将降低成本，并产生更好的设计系统。

Wind damage to low-rise buildings cause disruption to communities and result in economic losses. Improvements to the most vulnerable part (i.e. roof) will therefore have national benefits and associated economic benefits. Currently, roofing systems used in cyclonic areas are evaluated to DABM in the Northern Territory and to TR440 elsewhere, requiring the same product be tested under two different (and unsatisfactory) specifications. This is due to the limited understanding of wind-induced fatigue of cladding. This project will provide the framework for understanding and minimizing cladding fatigue. A realistic single test will also reduce cost and result in better design systems.