层间位移约束下高层框架-支撑结构的单步优化法  

Single-step Optimization Method Under Inter-story Drift Constraints for High-rise Braced-frame Structures

作　　者：孙飞飞[1] 马志东 贾瑞梓 SUN Feifei;MA Zhidong;JIA Ruizi(State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;College of Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]同济大学土木工程学院,上海200092

出　　处：《同济大学学报（自然科学版）》2018年第11期1494-1500,1593,共8页Journal of Tongji University:Natural Science

基　　金：上海市教委科研创新重点项目(14zz035)

摘　　要：从虚功角度将基于层间位移约束的高层建筑规则结构多约束优化问题转化为基于顶层整体转动的单约束问题,并提出了基于虚功的单步优化法.通过算例分析了单步优化法应用情况,并将其优化结果与SAP2000有限元分析软件优化结果进行对比.结果表明:针对层间位移约束,采用单步优化法用钢量节省约10%.The multi-constrained optimization problem of regular high-rise structures based on inter-story displacement constraints was transformed into a single constraint problem.On this basis,the single-step optimization method(SOM)based on virtual work was proposed.The optimization results of SOM were compared with the optimization results of SAP2000.The results show that SOM based on virtual work can reduce the mass of material by 10%.

关 键 词：高层建筑规则结构 层间位移约束 单步优化法 

分 类 号：TU972[建筑科学—建筑设计及理论]