杭州大剧院风压分布的风洞试验研究

杭州大剧院外观造型新颖独特，由一个近似为椭球的双曲面屋盖和一个倒置的圆锥面玻璃幕墙相交形成大剧院的主体建筑的外轮廓．本文结合该主体结构的抗风设计要求，制作了1：200刚性模型进行结构表面脉动风压平均风压分布的风洞试验研究，详细介绍了风洞试验及数据处理方法，讨论了在不同风向角下椭球面屋盖和圆锥面玻璃幕墙的风压分布．为了便于整体结构设计，本文根据结构的实际情况对椭球面和圆锥面进行分块并给出相应的分块风压数据，最后根据各风向角下的风压分布特征给出了整体结构抗风设计的最不利风向角．

Wind Tunnel Test for the Wind Pressure Distribution on the Hangzhou Grand Theater Building

The shape of Hangzhou Grand Theater is novel and special. Its main part consists of a hyperbolic paraboloid roof similar to ellipsoidal surface and a conical surface glass gladding. For the requirements of wind resistance design for the main part, a rigid model with 1:200 scale was made, and the wind tunnel test about pulsating wind pressure and mean wind pressure on the structure surface was carried out. In this paper, the methods of the wind tunnel test and data processing are presented in detail. The distribution of wind pressure on the ellipsoidal surface roof and the conical surface glass gladding at different wind directions is examined. In order to facilitate structure design, the ellipsoidal surface and the conical surface are divided into several regions based on the structure characteristics and corresponding regional wind pressure is offered. Moreover, based on the characteristics of the distribution of wind pressure at different wind directions, the most dangerous wind directions for the structural wind resistance design are also given.