上海东方艺术中心风荷载试验.pdfVIP

第 31卷第7期 同 济 大 学 学 报 Vo1．31 No．7 2003年7月 JOURNALOFTONGJIUNIVERSITY Ju1．2003 上海东方艺术中心风荷载试验 李忠溺 ，汪大绥2，黄 鹏3，顾 明3 (1．东方艺术中心指挥部。上海 20o135；2．华东建筑设计研究院有限公司，上海 20Oo02； 3．同济大学 土木工程防灾国家重点实验室，上海 2Oo092) 摘要：介绍了上海东方艺术中心模型风洞试验概况和主要结果．给出了屋面在最不利工况下的分块体型系数及 平均风压系数的等值线图，清楚地显示了此大跨度屋盖结构屋面的风压分布特征．结果表明，周边建筑对所测建 筑的风荷载有较大的干扰影响．最后对分别按规范(基于平均风压)和应用统计方法(基于平均风压和脉动风压) 计算的用于玻璃幕墙设计的风压结果进行了比较，结果表明，按规范计算的最不利风荷载偏小，对此应引起注 意． 关键词：风洞试验；分块体型系数；风压；干扰影响 中图分类号：TU 312 文献标识码：A 文章编号：o253—374X(2003)07—0819—05 W ind Tunnel Test on Model of Shanghai Oriental Art Center LI Zhong-yong ，WANG Da．sui ，HUANG Peng ，GU Ming (1．OrientalArtCenterHeadquarters。Shangh~200135，China；2．East(2finsArchit~uralDesign andResearch Institute Co．，Ltd．，Shanghai 200002，China；3．State Key Laboratory for Disaster Reduction in Civil Engineering，Torsi University，Shang~ 200092，Chins) Abstract：Testing conditions and main results of the wind turmel test of the model of Shanghai Orient Art Center are introduced．The block shape coefficients and contour curves of mean wind pressures for the most unfavorable conditions are given，which show clearly the characteristics of the wind pressure distributions on the roof of the building．The wind pressure results indicate the significant interference effects from its surroundings．Finally，wind pressures for the cladding design are presented with the code method and statistical method，respectively．Comparison between the results from these two methods indicates that the most unfavorable wind pressures from the code method are somewhat small，which should be noticed by designers． Key words：wind tunnel test；block shape coefficient；wind pressure；interference effect 大跨度