上海世博会西班牙馆表面风压的数值模拟

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

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。

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.