双层平板大悬挑网架结构静动力分析研究

Research on Static and Dynamic Analysis of Double-slab Large Cantilever Grid Structure

本文选取双层平板大悬挑网架屋面结构作为研究对象,采用有限元分析软件Midas Gen对模型进行分析,对大悬挑双层网架结构进行静力稳定和动力分析分析研究表明:大悬挑平板网架结构,受力状态不同于普通平板网架,其最大位移节点处于悬挑端部,支座范围对应的腹杆和弦杆受力最大。

In this paper,double-layer large cantilever flat grid structure roof structure was selected as research object.The finite element analysis software Midas Gen was used to analyze the model.The static and dynamic calculation results of double-lay er large cantilever flat grid structure were studied.The analysis results showed that,double-layer large cantilever flat grid structure is different from the ordinary flat grid.The maximum displacement node located at the cantilever end,and the largest stress located at the web and chord corresponding the support.