宁夏花儿艺术馆钢结构-混凝土结构共同工作分析研究  

Analysis of the coincident structural steel upper structure and concrete lower structure of Ningxia Flower Museum

作　　者：张拥军 陈丹[2] 刘武华[2] 

机构地区：[1]宁夏建筑设计研究院,宁夏银川750001 [2]北京交通大学土建学院,北京100044

出　　处：《宁夏工程技术》2010年第3期253-258,共6页Ningxia Engineering Technology

摘　　要：为探讨地震响应分析时混凝土下部结构对上部钢结构的影响,以宁夏花儿艺术馆为例建立了上部钢结构和下部混凝土结构共同工作的有限元模型,对模型分别进行了静力分析、小震作用弹性分析、大震作用动力弹塑性时程分析等.此外,还探讨了在罕遇地震下混凝土结构的弹塑性性质对整体结构的影响.结果表明,在共同工作条件下,上部钢结构的静、动力位移和内力都有较大程度的提高.在结构设计时,必须考虑下部支撑结构的放大效应.In order to investigate the effects of the substructure on superstructure under seismic load,the engineering example of Ningxia Flower Museum was adopted to build a joint-work finite element model.A further analysis as static analysis、elastic analysis under frequent earthquake and dynamic elastic-plastic time history under immediate earthquake were carried out.Besides,the influence of concrete structure’s elastic-plastic property to the whole structure under rare earthquake was discussed.The results show that,under static and dynamic loads the joint work pattern can improve structure’s displacements and internal forces considerably.Thus,the magnification effect of the lower structure must be taken into account when designing and analyzing.

关 键 词：上下结构共同工作 反应谱分析 弹塑性时程分析 放大效应 

分 类 号：TU391[建筑科学—结构工程]