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（1 暨南大學(xué)力學(xué)與土木工程系 廣州 510632；2 汕頭大學(xué)土木工程系 515063)
［提要］ 通過風(fēng)洞測(cè)壓試驗(yàn)分析了深圳市民中心屋蓋的平均風(fēng)壓和極值風(fēng)壓分布。試驗(yàn)表明，翹曲屋蓋與平屋蓋在風(fēng)荷載特性上具有一定的類似特性，屋蓋承受風(fēng)荷載的最不利位置在斜角迎風(fēng)區(qū)域，這主要是由于風(fēng)遇屋蓋分離形成的錐形漩渦所致。在法向迎風(fēng)面形成的柱形渦也導(dǎo)致了較大的局部負(fù)壓和升力，值得注意。
［關(guān)鍵詞］ 大跨屋蓋   懸挑結(jié)構(gòu)   曲面屋蓋   風(fēng)洞試驗(yàn)
Wind Tunnel Test of Citizen Center in Shenzhen/Zhao Ruohong1，F(xiàn)u Jiyang1，Zhang Senwen１，Xie Zhuangning2，Shi Biqing 2(1 Department of Mechanics and Civil Engineering, Jinan University, Guangzhou 510632，China； 2 Department of Civil Engineering, Shantou University, Shantou  515063,China)
Abstract:The average and peak wind pressure distribution is analyzed based on
wind tunnel test.The results show that warp longspan roof is similar to flat roof in some degree when they are acted by wind loads. The most dangerous part of the roof under wind effect is the windward region when wind blows from 45°,which is caused by conical vortices generated by the separation of air current. On the other hand, cylindrical vortices cause fairly large wind pressure.
Keywords:longspan roof; cantilevered structure; warp roof; wind tunnel test
*國(guó)家自然科學(xué)基金項(xiàng)目（10372036）；(50608037)；廣東省科技計(jì)劃資助項(xiàng)目(2006B37201011)。