Wind uplift strength of trapezoidal steel cladding with closely spaced ribs

Mahaarachchi, Dhammika & Mahendran, Mahen (2009) Wind uplift strength of trapezoidal steel cladding with closely spaced ribs. Journal of Wind Engineering and Industrial Aerodynamics, 97(3-4), pp. 140-150.

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Abstract

When crest-fixed thin trapezoidal steel cladding with closely spaced ribs is subjected to wind uplift/suction forces, local dimpling or pull-through failures occur prematurely at their screw connections because of the large stress concentrations in the cladding under the screw heads. Currently, the design of crest-fixed profiled steel cladding is mainly based on time consuming and expensive laboratory tests due to the lack of adequate design rules. In this research, a shell finite element model of crest-fixed trapezoidal steel cladding with closely spaced ribs was developed and validated using experimental results. The finite element model included a recently developed splitting criterion and other advanced features including geometric imperfections, buckling effects, contact modelling and hyperelastic behaviour of neoprene washers, and was used in a detailed parametric study to develop suitable design formulae for local failures. This paper presents the details of the finite element analyses, large scale experiments and their results including the new wind uplift design strength formulae for trapezoidal steel cladding with closely spaced ribs. The new design formulae can be used to achieve both safe and optimised solutions.

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3 citations in Web of Science®

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ID Code: 42880
Item Type: Journal Article
Refereed: Yes
Keywords: Wind Uplift Strength, Trapezoidal Cladding With Closely Spaced Ribs, Local Dimpling and Pull-through Failures, Finite Element Analyses, Experiments, Roof and Wall Cladding
DOI: 10.1016/j.jweia.2009.03.002
ISSN: 0167-6105
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2009 Elsevier Ltd.
Deposited On: 13 Jul 2011 13:07
Last Modified: 28 Aug 2015 04:19

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