(1 同济大学建筑设计研究院；2 同济大学建筑工程系，上海 200092)

［摘要］采用数值模拟方法对处于设计方案阶段的上海世博会西班牙馆的表面风压及其周围风流场进行了计算分析，获得了该复杂体型建筑与典型规则钝体建筑所不同的风压、风荷载体型系数分布特性及周围风流场分布特点。在对不同风向角下的风压、风荷载体型系数分布规律的分析基础上，给出了建筑物在最不利风向角下的最不利区域的风压系数和风荷载体型系数分布曲线，为结构抗风设计参数的确定提出合理建议和依据。

［关键词］数值模拟；风压；风荷载体型系数

Numerical Simulation of Wind Pressures on Spanish Pavilion of World Expo Shanghai

Zhao Xin1,Zhou Dan2,Ding Jiemin1(1 Architectural Design & Research Institute，2 Department of Building Engineering, Tongji University,Shanghai 200092,China)

Abstract:The wind-induced surface pressures and wind flow field around Spanish Pavilion of World Expo Shanghai,which is at the stage of schematic design,are numerically simulated. By analyzing the results,particularly the wind pressure,wind load shape coefficient and wind velocity distribution features,which are different from those of typical blunt buildings,are obtained. Through analysis of the wind pressure and wind load shape coefficient distributions in different wind directions,the wind pressure coefficient and wind load shape coefficient curves on the most critical sections in the most critical wind direction are presented. All the analysis and results can provide reasonable recommendations for the final design scheme.

Keywords:numerical simulation; wind pressure; wind load shape coefficient

作者简介：赵昕(1975-)，男，博士，高级工程师，E-mail:kenkicn@gmail.com。

参考文献

［1］建筑结构荷载规范(GB50009—2001)［S］.

［2］ALAN G. DAVENPORT. Past,present and future of wind engineering［J］. Journal of Wind Engineering and Industrial Aerodynamics,2002,90: 1371-1380.

［3］MURAKAMIS.-Current status and future trends in computational wind engineering［J］. Journal of Wind Engineering and Industrial Aerodynamics,1997,7/68: 3-34.

［4］CHANG CH,MERONEY RN. Concentration and flow distributions in urban street canyons: wind tunnel and computational data［J］. Journal of Wind Engineering and Industrial Aerodynamics,2003,91(9): 1141-1154.

［5］GOMES  MG,RODRIGUES AM,MENDES P. Experimental and numerical study of wind pressures on irregular-plan shapes［J］. Journal of Wind Engineering and Industrial Aerodynamics,2005,93(10): 741-756.

［6］Flow and pressure field characteristics around pyramidal buildings［J］. Journal of Wind Engineering and Industrial Aerodynamics,2006,94(10): 745-765.

［7］LI QS,FU JY,XIAO YQ. Wind tunnel and full-scale study of wind effects on Chinas tallest building［J］. Engineering Structures,2006,28: 1745-1758.

［8］MURAKAMIS. Comparison of various turbulence model applied to a bluff body［J］. Journal of Wind Engineering and Industrial Aerodynamics,1993,(46-47): 121-136.

［9］杨伟，顾明. 高层建筑三维定常风场数值模拟［J］. 同济大学学报，2003，32(6): 647-651.

［10］陶文铨.数值传热学(第二版)［M］. 西安: 西安交通大学出版社，2001.

［11］T H SHIH,W W LIOU,A SHABBIR,Z G YANG,J ZHU. A new eddy viscosity model for high Reynolds number turbulent flows［J］. Comput Fluids,1995,24(3): 227-238.

［12］张相庭.工程抗风设计计算手册［M］. 北京：中国建筑工业出版社，1998.

［13］JOHN D. HOLMES. Wind Loading of Structures［M］. London: Spon Press,2001.