Towards an appropriate fatigue loading sequence for roof claddings in cyclone prone areas
Mahendran, M. (1995) Towards an appropriate fatigue loading sequence for roof claddings in cyclone prone areas. Engineering Structures, 17(7), pp. 476-484.
Currently two different fatigue tests are being used to investigate the fatigue susceptibility of roof claddings in the cyclone prone areas of Australia. In order to resolve this issue a detailed investigation was conducted to study the nature of cyclonic wind forces using wind tunnel testing and computer modelling and the fatigue behaviour of metal roof claddings using structural testing. This led to the development of an accurate, but complicated loading matrix for a design cyclone. Based on this matrix, a simplified low-high-low loading sequence has been developed for the testing of roofing systems in cyclone prone areas. This paper first reviews the currently used fatigue loading sequences, then presents details of the cyclonic wind loading matrix and finally the development of the new simplified loading sequence. This simplified sequence should become the only suitable test for most of the cyclone prone areas of Australia covered by Region C which suffers from Category 4 cyclones. For Region D which suffers from Category 5 cyclones, the same loading sequence with 20% increased cycles has been recommended. An experimental programme to validate the new simplified loading sequence has been proposed.
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|Item Type:||Journal Article|
|Additional Information:||Compilation and indexing terms, Copyright 2013 Elsevier Inc.
|Keywords:||cyclonic wind loading, roof claddings, fatigue loading sequence, fatigue testing of roofing systems|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||20 Nov 2013 23:13|
|Last Modified:||11 Feb 2015 03:05|
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