Ginger, J., Henderson, D., Humphreys, M., Konthesingha, C., and Stewart, M.G. (2015) Wind loads on the frames of industrial buildings. Australian Journal of Structural Engineering, 16 (2). pp. 169-176.

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Abstract

The structural response of typical, gable-end, low roof pitch industrial buildings, in a windstorm is dependent on the wind loads used in the design of cladding and the portal frame structure. Critical, structural wind load effects derived from wind loads measured on a wind tunnel model show that standards such as AS/NZS 1170.2 can produce unconservative design load effects on the heavily loaded first internal frame. This paper forms part of wider study that assesses the vulnerability of hot rolled steel, industrial buildings to wind loads. The knee and ridge bending moments and horizontal and vertical reactions at the base of the frame are the critical load effects that are used in the design of structural members and connections of these types of buildings. This study found that some of these load effects based on external pressures are under-estimated by about 30%, when the building is located in a suburban environment. A dominant windward wall opening can effectively double the design load effects, thus significantly increasing the vulnerability, especially if this scenario has not been considered by the designer.

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