数值风洞在苏州中心“未来之翼”屋面设计中的应用
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（苏州工业园区设计研究院股份有限公司， 苏州 215021）
［摘要］以苏州中心展开长度近630m的异形曲面钢屋面为背景，对数值风洞在结构风荷载设计和风环境分析中的运用进行了探讨。采用数值风洞对屋面结构在不同风向角下的风荷载特性进行了数值模拟分析，计算得到上部结构表面的风压系数与物理风洞试验结果吻合较好；基于分析结果采用时域法对屋面进行了风致振动响应分析，并对屋面结构周围行人高度处风环境进行了模拟评估。最后，分析了数值风洞和物理风洞两者之间的差异，提出了数值风洞模拟的改进方法和思路。［关键词］苏州中心; 大跨屋面; 计算流体动力学; 风振响应; 风环境中图分类号：TU312+.1，TU318.2 文献标识码：A 文章编号：1002-848X(2015)14-0065-07
Application of numerical wind tunnel in design of Wing of Future roof of Suzhou CenterYang Lülei, Gong Minfeng, Lu Jianglong，Zhang Jin(Suzhou Industrial Park Design & Research Institute Co., Ltd., Suzhou 215021, China)Abstract: The applications of the numerical wind tunnel in the structural wind load design and wind environment analysis were discussed based on the background of the 630m long special-shaped curved surface steel roof of Suzhou Center. The numerical wind tunnel was used to carry out the numerical simulation analysis on wind load characteristics for the roof structure under different wind angles. The calculated wind pressure coefficient of the surface of the upper part structure and physical wind tunnel test result are in good agreement. Based on the analysis results, time domain method was used to carry out the wind-induced vibration response analysis on the roof structure, and the wind environment at the height of pedestrians around the roof structure was simulated and evaluated. At last, the differences between the numerical wind tunnel and the physical wind tunnel were analyzed, and the improving methods and ideas of the numerical wind tunnel simulation were presented.Keywords: Suzhou Center; large-span roof; computational fluid dynamics; wind vibration; wind environment
作者简介：杨律磊，工程师，Email: yanglvlei@sipdri.com。
