橢球面屋蓋與圓錐面玻璃幕墻的風(fēng)壓分布特征*
田森源 樓文娟 沈國(guó)輝 孫炳楠 周嶸 俞順年
- 摘 要
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[提要]結(jié)合杭州大劇院主體結(jié)構(gòu)風(fēng)壓分布的風(fēng)洞試驗(yàn)研究，詳細(xì)介紹了風(fēng)洞試驗(yàn)及數(shù)據(jù)處理方法，討論了在不同風(fēng)向角下橢球面屋蓋和圓錐面玻璃幕墻的風(fēng)壓分布，并與荷載規(guī)范中類(lèi)似結(jié)構(gòu)的風(fēng)壓分布進(jìn)行了比較。為了便于整體結(jié)構(gòu)設(shè)計(jì)，根據(jù)結(jié)構(gòu)的實(shí)際情況對(duì)橢球面和圓錐面進(jìn)行分塊并給出相應(yīng)的分塊風(fēng)壓數(shù)據(jù)，根據(jù)各風(fēng)向角下的風(fēng)壓分布特征給出了整體結(jié)構(gòu)抗風(fēng)設(shè)計(jì)的最不利風(fēng)向角。
[關(guān)鍵詞]風(fēng)洞試驗(yàn) 橢球面屋蓋 圓錐面玻璃幕墻 風(fēng)壓分布 分塊風(fēng)壓Abstract:Based on the wind tunnel test of wind pressure distribution on Hangzhou Grand Theater, the methods of the wind tunnel test and data processing are introduced in detail, and the distribution of wind pressure of the ellipsoidal surface roof and the conical surface glass gladding at different wind directions are discussed. The experimental results are also compared with the distribution of wind pressure of similar structure on the load code. In order to facilitate structure design, the ellipsoidal surface and the conical surface are divided into several regions based on the structure characteristics and corresponding regional wind pressure is offered. Based on the characteristics of the distribution of wind pressure at different wind directions, the most dangerous wind directions for structural wind resistance design are offered.Keywords: wind tunnel test; ellipsoidal surface roof; conical surface glass gladding; wind pressure distribution
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