索穹顶结构施工全过程分析  

Construction Process Analysis of Cable Dome

作　　者：张建华 张毅刚[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100022

出　　处：《武汉理工大学学报》2008年第4期91-94,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50278004)

摘　　要：采用非线性时变有限元法,对索穹顶结构在各施工阶段的力学性状进行了全过程跟踪分析,得出施工过程杆件内力和节点位移的演变规律。计算结果表明,部分杆件在施工过程中的最大内力超出设计值的47%,得出不考虑施工过程的时变效应对结构设计偏于不安全的结论,最后为索穹顶结构的设计和施工提出指导性的建议。The structural characteristics in every construction stage of cable dome were analyzed.Adopting the theory of nonlinear time-varying mechanics,the variations of internal force and displacements were obtained.Numerical results indicated that maximum internal force in construction process was greater 47% than that in designed state,the paper reached a conclusion that it was not safe to design if the time varying effect was not considered in the construction process analysis.At last,advices on design and const...

关 键 词：索穹顶结构 施工全过程分析 时变力学 非线性 

分 类 号：TU399[建筑科学—结构工程]