通过刚性模型试验评价中庭采光顶风荷载及其响应的方法

Study on wind loads and responses of skylight by wind tunnel test of aerorigid modeling

当中庭采光顶的建筑设计完成以后,在结构形式上可能仍然存在多种方案,这就需要对每个设计方案的动力性能和风致响应进行评价,而通过气动弹性试验来测定每个方案是不现实的。因此,本文提出了采用刚性测压试验原始数据和有限元时程分析相结合的方法,通过一次刚性测压试验和多次有限元分析来解决,这显然更经济合理。本文将以上海世茂中庭采光顶项目为例,详细地介绍上述风致响应计算方法及其有关结论。

After the architecture design of a project has been finished, the style and shape would be confirmed, but the configuration would still have more than one alternative to be chosen. So it is necessary to evaluate the dynamic performance and wind induced response of each alternative; however, it is unrealistic to measure the dynamic capability of each structural alternative by wind tunnel test of the aeroelastic modeling. Therefore, a more feasible method is induced, which uses the time series of wind pressure got by one time wind tunnel test of aerorigid model in conjunction with the finite element method to calculate the wind-induced response for several times. This article also introduces the procedure and main results of wind tunnel test and successive analysis for Shi Mao project in Shanghai.