现浇上弦板式网架的动力特性分析

Dynamic analysis of member-plate composite space grid

分析了现浇上弦板式网架跨度、长宽比、支座刚度、上弦混凝土板厚、网格尺寸和网架高度对现浇上弦板式网架结构自振特性的影响,得到了现浇上弦板式网架结构的自振频率变化规律和关于抗震分析的一些结论。

At first,using the modal analysis method,the influence of some factors,such as span,the ratio of length to width,the stiffness of supports and the size of the grids,the thickness of reinforced concrete plate,height,on dynamic characteristics of the Member-plate composite space grid are investigated,finally some conclusions about seismic performance of the Member-plate composite space grid are obtained.