机构地区: 广州数力工程顾问公司510170
出 处: 《建筑结构》 2007年第9期57-59,37,共4页
摘 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。 The performance of the core-wall 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.
领 域: [建筑科学]