Determination of wind pressure coefficients for arc-shaped canopy roof with numerical wind tunnel method

Yue Yin; Tianshu Zhang; Qinghua Han; Huidong Yang

doi:10.1007/s12209-009-0063-9

Transactions of Tianjin University ›› 2009, Vol. 15 ›› Issue (5) : 360 -365. DOI: 10.1007/s12209-009-0063-9

Article

Determination of wind pressure coefficients for arc-shaped canopy roof with numerical wind tunnel method

Yue Yin ¹^,²^,^a
, Tianshu Zhang ¹^,³
, Qinghua Han ¹^,²
, Huidong Yang ⁴

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Abstract

In this paper, the wind load on an arc-shaped canopy roof was studied with numerical wind tunnel method (NWTM). Three-dimensional models were set up for the canopy roof with opened or closed skylights. The air flow around the roof under wind action from three directions was analysed respectively. Wind pressure coefficients on the canopy roof were determined by NWTM. The results of NWTM agreed well with those of wind tunnel test for the roof with opened skylights, which verified the applicability and rationality of NWTM. The effect of the closure of skylights was then investigated with NWTM. It was concluded that the closure of the skylights may increase the wind suction on the top surface of the roof greatly and should be considered in the structure design of the canopy roof.

Keywords

arc-shaped canopy roof / numerical wind tunnel method / wind pressure coefficient / wind tunnel test / skylights

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Yue Yin, Tianshu Zhang, Qinghua Han, Huidong Yang. Determination of wind pressure coefficients for arc-shaped canopy roof with numerical wind tunnel method. Transactions of Tianjin University, 2009, 15(5): 360-365 DOI:10.1007/s12209-009-0063-9

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