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(1 招商局蛇口工業(yè)區(qū)控股股份有限公司， 深圳 518067;2 汕頭大學(xué)土木與環(huán)境工程系， 汕頭 515063)
［摘要］珊瑚格結(jié)構(gòu)具有濃厚的海洋文化氣息，建筑設(shè)計中常被用來裝飾臨海建筑的結(jié)構(gòu)外立面，但其對建筑表面風(fēng)壓的影響研究較少。通過剛體模型多點(diǎn)同步測壓風(fēng)洞試驗(yàn)方法，對設(shè)置不同珊瑚格的深圳蛇口郵輪中心表面風(fēng)壓進(jìn)行了測試，分析了不同透風(fēng)率珊瑚格和不同地貌下郵輪中心的幕墻和大跨度屋蓋表面風(fēng)壓特性。試驗(yàn)結(jié)果表明：設(shè)置珊瑚格可以有效降低其背后幕墻和臨近屋蓋的平均風(fēng)壓系數(shù)和脈動風(fēng)壓系數(shù)；隨著透風(fēng)率的減小，幕墻和屋蓋的平均風(fēng)壓系數(shù)和脈動風(fēng)壓系數(shù)均逐漸減小，并存在一個最優(yōu)透風(fēng)率，使得平均風(fēng)壓系數(shù)和脈動風(fēng)壓系數(shù)達(dá)到最小值；不同地貌下，背風(fēng)側(cè)的珊瑚格背后幕墻及其臨近屋蓋的平均風(fēng)壓系數(shù)和脈動風(fēng)壓系數(shù)均相差不大，迎風(fēng)側(cè)的珊瑚格背后幕墻及其臨近屋蓋的平均風(fēng)壓系數(shù)也相差不大，但脈動風(fēng)壓系數(shù)具有明顯的差別。
［關(guān)鍵詞］深圳蛇口郵輪中心； 大跨度屋蓋； 珊瑚格結(jié)構(gòu)； 風(fēng)洞試驗(yàn)； 透風(fēng)率； 多點(diǎn)同步測壓試驗(yàn)； 平均風(fēng)壓系數(shù)； 脈動風(fēng)壓系數(shù)
中圖分類號：TU311-3， U422-5+9文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)11-0123-06
Experimental study of influences of coral grid structure on surface wind pressures of Shenzhen Shekou Cruise Center
ZHANG Jinghui1, ZHOU Qi2, CHI Yongjun1, SHEN Xiaohu1
(1 China Merchants Shekou Holdings, Shenzhen 518067, China; 2 Department of Civil and Environmental Engineering, Shantou University, Shantou 515063, China)
Abstract:Coral grid structure has a strong atmosphere of marine culture. It is often used to decorate the structural facade of coastal buildings in architectural design, but its impact on the wind pressure on the building surface is rarely studied. Based on the wind tunnel test method of multi-point simultaneous pressure measurement test for rigid body model, the wind pressure on the surface of Shenzhen Shekou Cruise Center with different coral grids was tested, and the wind pressure characteristics of the curtain wall and large-span roof of the cruise center with different ventilation rates and different landforms were analyzed. The test results show that setting coral grid can effectively reduce the average wind pressure coefficient and fluctuating wind pressure coefficient of the curtain wall and the adjacent roof; with the decrease of the ventilation rate, the average wind pressure coefficient and fluctuating wind pressure coefficient of the curtain wall and the roof decrease gradually, and there is an optimal ventilation rate to make the average wind pressure coefficient and fluctuating wind pressure coefficient reach the minimum value; under different landforms, the average wind pressure coefficient and fluctuating wind pressure coefficient of the curtain wall behind the coral grid on the leeward side and its adjacent roof are almost the same, and the average wind pressure coefficient of the curtain wall behind the coral grid on the windward side and its adjacent roof are also the same, but the fluctuating wind pressure coefficient is obviously different.
Keywords:Shenzhen Shekou Cruise Center; large-span roof; coral grid structure; wind tunnel test; ventilation rate; multi-point simultaneous pressure measurement test; mean wind pressure coefficient; fluctuating wind pressure coefficient
通訊作者：周奇，博士，副教授，碩士生導(dǎo)師，Email: zhouqi@stu.edu.cn。
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