群体风效应下高层建筑等效风荷载及舒适度分析

基于某复杂群体高层建筑项目风洞试验结果,采用覆面积分计算方法,对该项目最高塔楼进行了风荷载及风振响应分析,结构由于受到周围建筑的干扰影响,其实际风荷载与规范估算结果差异较大,计算还分析了不同风向下结构的等效基底倾覆力矩及其顶部峰值加速度,其结果可用于此结构的抗风设计。

The Equivalent Wind Load and Comfortable Level Analysis to Wind Effect on Group of Tall Buildings

Based on the results obtained from the testing of tall group model buildings on complicated locations carried out in the wind tunnel,the wind load and wind-induced response of extreme high tower building can be analyzed with the selection of cladding integral calculation method.Due to the interference of the building around the group structures,the experiment shows bigger differences between the actual wind load gained from the testing and the estimation results defined in building codes,and the calculation also be analyzed on the equivalent base overturning moment and top peak acceleration of the structures under different wind directions.The results can be used for the wind-resistant design.