基于MS模型的剪力墙—核心筒结构的高层建筑三维非线性动力破坏分析  

Analysis of Nonlinear Earthquake Destroy of Highrise RC Frame-Core Tube Building Based on MS Element Model

作　　者：陈健云[1] 李静[1] 方明霁[2] 

机构地区：[1]大连理工大学海岸与近海工程国家重点实验室,辽宁大连116024 [2]同济大学,上海200092

出　　处：《防灾减灾工程学报》2006年第2期147-152,共6页Journal of Disaster Prevention and Mitigation Engineering

基　　金：辽宁省自然科学基金资助项目(20022130)

摘　　要：采用非线性多弹簧弹塑性有限元模型,对我国一座最高的民用超高层钢筋混凝土剪力墙—核心筒结构进行了非线性地震响应破坏分析。通过分级加载分析了不同地震烈度下超高层建筑从弹性、塑性直至失效的结构内力和变形的整个过程,并采用静力Push O ver方法和1/50比尺的振动台模型试验进行了破坏分析。结果表明超高层建筑的最薄弱位置在1/2到2/3之间高度处。非线性数值分析的结果和振动台模型破坏试验现象符合一致。The nonlinear seismic analysis of an out-of-code high-rising RC frame-core tube building, which is the highest residential building in China, is performed using multi-springs elastic-plastic finite element model. The whole seismic response process of deformation and stress from elasticity to damage and failure is studied by applying different grade earthquake load. The corrupt analysis is also studied by Push-Over method and the experimental investigation of 1/50 scale highrise building model test on 3 × 4 meters shaking table is described. Some measures for improving the anti-seismic capacity are advised. The results show that the weakest position of such high-rising building is between the 1/2 and 2/3 height of the build- ing. The comparison of the results from numerical analysis with the earthquake distruction test shows a satisfactory agreement on damage and failure phenomenon.

关 键 词：高层建筑 多弹簧模型 弹塑性分析 

分 类 号：O322[理学—一般力学与力学基础] TU973[理学—力学]