超高层钢框架-核心筒结构弹性与弹塑性时程分析结果对比研究  

Comparative Study Between Elastic and Elastic-Plastic Analysis on Super High-rise Steel Frame-Core Wall Structures

作　　者：尧国皇[1,2] 王卫华[3] 陈宜言 

机构地区：[1]清华大学土木工程系,北京100084 [2]深圳市市政设计研究院有限公司,深圳518029 [3]华侨大学土木工程学院,厦门361021

出　　处：《北京工业大学学报》2013年第4期529-535,共7页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(51008171);中国博士后科学基金资助项目(20110490417)

摘　　要：利用通用有限元软件ABAQUS建立了超高层钢框架-钢筋混凝土核心筒混合结构的精细有限元模型,对其进行了罕遇地震作用下的弹性时程分析和弹塑性时程分析,充分比较了时程分析获得的计算结果,包括顶点位移时程曲线、基底剪力时程曲线、楼层位移角包络曲线以及地震作用下整体结构的能量反应规律.结果表明:弹塑性分析模型在结构进入弹塑性阶段之后,结构刚度降低,与弹性分析结果相比,结构的地震反应程度更小且存在滞后现象.有关论述和方法可为同类研究提供参考.The FEM package ABAQUS was adopted to establish the fine FEM mode of super high-rise steel frame-R. C. core wall structure. The elastic and elastic-plastic time history analysis of the structure under rarely met earthquake was carried out in this paper. The calculated results including vertex displacement time-history curves, basal shear time-history curves, floor displacement angle envelope curve, and energy response law of the whole structure were attained. Results show that the structure stiffness will reduce with the structure entering into the elastic-plastic stage. Compared with elastic analysis results, the elastic-plastic analysis will obtain smaller earthquake response. The method mentioned in this paper may be referred for correlative research.

关 键 词：超高层 框架-核心筒结构 混合结构 弹塑性分析 时程分析 

分 类 号：TU973.14[建筑科学—结构工程]