（1广东数力工程顾问有限公司，510170；2广东省建筑设计研究院，广州，510010；3广州容柏生建筑工程设计事务所，510170）
［提要］对混凝土芯筒悬臂结构在大震作用下的弹塑性受力性能进行分析和研究。对广东省博物馆工程结构特点的定性分析表明，悬臂芯筒在大震作用下的延性性能是结构大震不倒的关键。对结构采用精细的弹塑性模型进行动力弹塑性分析，梁柱单元用塑性区模型，剪力墙用带分布钢筋的壳元+混凝土弹塑性损伤模型。结果表明，混凝土芯筒的剪力墙屈服后，其内置的延性加强构件(钢管柱)对结构的防倒塌有显著的作用。
［关键词］结构分析；动力弹塑性分析；芯筒悬臂结构
Elasto-plastic Performance Analysis and Research of Core-wall Cantilever Structure Under Strong Earthquake/Li Zhishan1， Chen Xing2， Rong Baisheng2,3 (1 Guangzhou Scientific Computing Consultants Co., Ltd., Guangzhou 510170, China; 2 The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China; 3 RBS Architectural Engineering Design Association, Guangzhou 510170, China)
Abstract: The performance of the corewall cantilever structure under the great earthquake is analyzed and researched. The dynamic elasto-plastic analysis of Guangdong museum is finished. The refined elastic\|plastic FEM model is used and suitable member model is chosen to simulate the structure component. It is found that the ductile strengthen member (concrete fill steel tube) play an important role to prevent the structure from collapse after the shear walls partially yield.
Keywords: structure analysis; dynamic elasto-plastic analysis; core-wall cantilever structure