（1 中国建筑科学研究院，北京 100013； 2 北京市建筑设计研究院，北京 100045；3 中铁第四勘察设计院集团有限公司，武汉 430063）

［摘要］采用“数值模拟引导下的风洞试验研究”技术路线，首先在新广州火车站大跨屋盖结构的扩初设计阶段，对主导风向角下的平均风压分布进行了数值模拟计算和预测，辅助设计人员对结构方案进行优选；随后利用数值模拟结果对大体量刚性模型测压风洞试验的测点数量和位置进行了优化，以便捕捉到最不利的风压分布并保证风振响应分析所需的同步性；最后进行了数值模拟结果与风洞试验结果的相互比较和验证，结果表明两者所得的风压分布趋势和数值结果吻合良好；研究成果已经成功应用于该工程的结构设计中。

［关键词］大跨屋盖结构；?风荷载；?风洞试验；?数值模拟

Research on wind loads of New Guangzhou Railway Station by wind tunnel test and numerical simulation

Jin Xinyang¹, Yang Yi¹, Sheng Ping², Shen Ting³, Tang Yi¹, Jin Hai¹(1 China Academy of Building Research, Beijing 100013, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China; 3 China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China)

Abstract:Using the technical road map of CFD-induced wind tunnel test research, the distributions of mean wind pressure for dominated wind directions on the large span roof of New Guangzhou Railway Station were simulated to assist the designers optimizing the roof structure. The number and location of taps for the grand dimension wind tunnel test were optimized to catch the most unfavorable distributions and ensure the synchronization of wind pressure by referring to the numerical results. The results of numerical simulation and wind tunnel test were compared and calibrated each other and showed well fitted. The wind loads from the research have been successfully used in the structural design.

Keywords:large-span roof structures; wind loads; wind tunnel test; numerical simulation

国家“十一五”科技支撑计划课题(2006BAJ02A05)和国家自然科学基金（50708014）联合资助。

作者简介：金新阳，研究员，Email:jinxinyang@cabrtechcom。

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