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Determination of wind pressure coefficients for arc-shaped canopy roof with numerical wind tunnel method |
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| Authors: | Yue Yin Tianshu Zhang Qinghua Han Huidong Yang |
| Institution: | 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Civil Engineering Structures and New Materials, Tianjin 300072, China 2. School of Civil Engineering, Tianjin University, Tianjin 300072, China;Tianjin Architecture Design Institute,Tianjin 300074,China 3. The Second Survey and Design Institute of China Railways,Chengdu 610031,China |
| 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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