管桁架—索网混合钢结构的计算分析  

Computation and analysis on hybrid steel structure of tubular truss-cable net

作　　者：罗晓群[1] 王忠全[1] 张其林[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《计算机辅助工程》2007年第3期1-5,共5页Computer Aided Engineering

基　　金：国家自然科学基金青年科学基金(50508025)

摘　　要：为更好地对管桁架—索网混合钢结构进行找形,在SAP2000和3D3S中应用两种不同的初始态找形方法以比较对计算结果的影响.在SAP2000中采用非线性有限元分析方法找形,在3D3S中采用力密度法和有限元法进行混合找形,并进行初始态、动力以及载荷态分析.比较分析这两种找形方法的计算结果,发现二者的计算结果误差不大,均为可行的简化计算方法.To implement the form-finding better for hybrid structure of tubular truss-cable net, two different methods of initial status form-finding analysis are used in software SAP 2000 and 3D3S to compare the effect on the results. The nonlinear finite element method is used in SAP 2000, and a method mixed with force density method and finite element method is used in 3D3S. The initial status, load and dynamics analysis are carried out. The results of the two methods are compared which show that both methods have little error and are all feasible simplified computing methods.

关 键 词：混合钢结构 管桁架 索网 初始态 找形 有限元 SAP 2000 3D3S 

分 类 号：TU398.9[建筑科学—结构工程]