Distribution of wind loads in metal-clad roofing structures

Jayasinghe, Nandana Chana, Ginger, John D., Henderson, David J., and Walker, George R. (2018) Distribution of wind loads in metal-clad roofing structures. Journal of Structural Engineering, 144 (4). 04018014-1.

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Abstract

The roof is the part that experiences the largest wind load and is usually the most vulnerable part of a house. However, data on how the wind loads are transferred through the roof structure are scarce. The fluctuating nature and variable spatial distribution of wind loads combined with the structural response can cause significant challenges for assessing the distribution or sharing of loads in a roof. Such studies are required to obtain more reliable estimates on vulnerability assessment to windstorms. This paper describes the transmission of wind loads from the pressure on the cladding through the cladding-to-batten connections to the batten-to-truss connections on a roofing system typical of that in many contemporary houses constructed in cyclonic regions of Australia. The study found that the use of normal design practices can significantly underestimate connection loads when highly correlated large-scale wind pressures act on these roof systems.

Item ID: 52297
Item Type: Article (Research - C1)
ISSN: 1943-541X
Keywords: wind load effects; roof structure; load sharing and distribution; vulnerability
Date Deposited: 23 Mar 2018 01:33
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 80%
12 BUILT ENVIRONMENT AND DESIGN > 1202 Building > 120202 Building Science and Techniques @ 20%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870204 Residential Construction Design @ 100%
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