大型球体建筑的风荷载设计研究

Research on Wind Load Design of Large Sphere-shaped Buildings

杭州国会中心建筑造型复杂,包含了大跨屋面和球体主楼。我国现行的荷栽规范对这两种体型都没有给出风荷载,对于这种复杂结构的风振系数也没有给出相应的数据和计算方法。文章以该项目为例,采用风洞试验来测定该建筑的风荷载,并进行主体结构风振系数的有限元计算。初步探讨了复杂体型建筑的风荷载设计问题,对类似体型建筑的风荷载设计具有借鉴意义。

The architectural model of Hangzhou International Conference Center is complex, including the large-span roof and the sphere-shaped main building. The current load codes in our country do not state wind loads of these two patterns, and do not give corresponding data and calculating methods for the wind-induced vibration coefficient of this complex structure. This article takes this project as an example, adopts wind tunnel test to measure the wind load of this building, and calculates the finite element of the wind-induced vibration coefficient of the main structure. In addition, this article preliminarily discusses the wind load design problem of complex-shaped buildings, which features reference meaning to the wind load design of similar buildings.