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张拉索杆结构是点支式玻璃幕墙最常见的支承体系之一,属于一种柔性结构,对外荷载的作用比较敏感。建立了点支式玻璃幕墙张拉索杆支承体系的非线性动力特性分析的有限元模型,分析了该结构的自振频率与各阶振型,并进一步研究了初始预拉力、拉索截面面积、撑杆截面面积和撑杆长度几个主要的设计参数以及玻璃质量变化对该结构的自振频率的影响。
Tensile rod structure is one of the most common support systems for point-supported glass curtain wall. It belongs to a flexible structure that is sensitive to the effects of external loads. The finite element model of nonlinear dynamic characteristic analysis of tension cable support system of point-supported glass curtain wall was established. The natural frequency and each vibration mode of the structure were analyzed. The effects of initial pre-tension, cross-sectional area of cable , Strut cross-sectional area and strut length of several major design parameters and the impact of glass quality changes on the natural frequency of the structure.