雨荷载对索桁架体系点支式玻璃幕墙的影响研究

Dynamic Response Study on Cable Truss Point-Supporting Glass Curtain Wall under Coupling Wind and Rain Loads

如今,玻璃幕墙因其独特的建筑美观特点而得到了广泛的应用,但对幕墙结构所受雨荷载的影响的研究甚少。本文通过MATLAB软件及马歇尔-帕尔默雨滴谱,模拟了风速时程曲线和雨荷载;利用大型有限元软件ANSYS建立索桁架体系点支式玻璃幕墙模型,并进行动力风雨荷载时程分析,研究雨荷载在风雨荷载共同作用下对玻璃幕墙结构的影响。

The glass curtain wall has been applied extensively at home and abroad because of its unique and transparent architectural effects. But typhoon storms may have an important effect on glass curtain walls, about which there is by far not any report both in China and abroad. This article tells how the rain load is got by using the harmonic wave superposition method to simulate the curve of fluctuating wind and how the fluctuating rain load is obtained with the help of M-P rain together with the fluctuating wind veloc-ity. It also makes the transient analysis of fluid-structure interaction from cable truss point supporting glass curtain walls to the dynamic wind and rain loads by using ANSYS. It finally elaborates how the rain load exerts an influence on curtain walls under wind and rain loads.