大跨度开合屋盖的风致干扰效应研究

Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》

孙芳锦 尚俊晨 白松豪 张大明 徐中豪

Abstract： When there are other disturbing buildings around the retractable roof , the surrounding wind fieldchanges , resulting in more complicated wind pressure distribution on the retractable roof , but the currentresearch on the wind-induced disturbance effect of the long-span retractable roof structure is relatively lim-ited. In the work here , computational fluid dynamics (CFD) method is used to study the wind pressuredistribution and wind-induced disturbance of long-span retractable roof structures under the influence ofindividual buildings under different retractable conditions. First, TTU experimental data and wind tunneltest data are used to verify the accuracy of CFD method in this paper.Then the wind pressure distribution on the surface of the long-span retractable roof is studied under different conditions. The results show thatwith the increase of the space between the disturbed building and the long-span retractable roof , the windpressure coefficient on the structure surface increases gradually , and the shielding effect decreases.'Theretractable conditions of long-span retractable roof have a significant influence on the distribution of windpressure coefficient on the roof surface. Studies have shown that when there are disturbing buildings a-round, the distribution of wind pressure on the surface of large-span roofs has changed significantly , andthe effects of wind-induced interference cannot be ignored.

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