框架-核心筒超限高层结构的抗震性能评估  

Evaluation of Seismic Performances of Super High-Rise Frame-Core Wall Structure

作　　者：杨春[1,2] 潘健明[1] 蔡健[1,2] 廖祥盛[1] 李光星 

机构地区：[1]华南理工大学土木与交通学院,广东广州510640 [2]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640 [3]广州城建开发设计院有限公司,广东广州510620

出　　处：《华南理工大学学报（自然科学版）》2013年第6期84-90,共7页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金青年基金资助项目(51108104);广东省自然科学基金资助项目(S2012010010074);亚热带建筑科学国家重点实验室自主研究课题(2011ZC25;2011ZC28);亚热带建筑科学国家重点实验室开放课题(2012KB06);广州市市属高校"羊城学者"科研项目(12A001D)

摘　　要：以结构整体地震响应、材料应变、主要受力构件变形作为抗震性能评估指标,从结构整体和局部的地震响应层面上,综合考察结构的抗震性能.以某体型不规则、高度超限的框架-核心筒超高层结构为研究对象,利用Perform 3D非线性软件对该结构进行非线性动力时程分析.分析结果表明:结构整体变形满足规范要求;各主要受力构件变形性能处于基本完好状态,仅位于结构平面缩进处的剪力墙和框架梁发生较大弹塑性变形,但其平均变形仍处于基本完好状态.基于结构整体与局部构件抗震性能评估可知,该框架-核心筒超高层结构满足抗震性能指标要求.Some seismic performance indexes,such as the seismic response of the overall structure,the strain of material and the deformation of main structural components,were proposed to comprehensively assess the seismic performances of a structure in the aspects of overall and local responses.Then,nonlinear dynamic time-history analyses were carried out to study the seismic performances of a super high-rise frame-core wall structure with vertical irregularity and exceeding height by adopting Perform 3D.The results show that（1） the deformation of the overall structure meets the requirements of the specification;（2） the deformations of the main force components are basically in serviceable state;and（3） although plasticity concentrates on shear walls and frame girders at the storey where the structural layout retracts,the average deformations of the components are still in serviceable state.Thus,it is concluded that the proposed seismic performance indexes can be achieved by super high-rise frame-core wall structures.

关 键 词：框架-核心筒超限高层结构 非线性动力时程分析 抗震性能 

分 类 号：TU352.1[建筑科学—结构工程]