带加强层高层建筑地震作用分析与减震研究  

Seismic analysis and energy dissipation of a high-rise building with strengthened storey

作　　者：刘涛[1,2] 李爱群[1] 顾小平[2] 裴友法[2] 张志强[1] 

机构地区：[1]东南大学土木工程学院,南京210096 [2]江苏省住房和城乡建设厅抗震办公室,南京210036

出　　处：《振动与冲击》2012年第11期16-21,共6页Journal of Vibration and Shock

基　　金：国家杰出青年科学基金项目(50725828);住房和城乡建设部科研项目;东南在学优秀博士学位论文基金资助项目(0705)

摘　　要：带加强层的高层建筑在地震作用下侧移和内力有特有的规律。针对带加强层高层建筑分析其动力特性和地震作用下的侧移规律,并进行减震效果研究和优化设计,提出设计建议。以某高烈度区一座带加强层高层建筑为例的分析结果表明,带加强层的高层建筑在地震荷载作用下侧移有突变,楼板缺失导致整个结构变形规律发生改变,附加粘滞流体阻尼器后层间位移角和底部剪力都有所减小,减震方案优化后减震效果良好。High-rise buildings with strengthened storey have their own features of lateral displacement and mechanical behavior under earthquake. Here, dynamic characteristics and lateral displacement laws of a high-rise building with strengthened storey were analyzed, effects of seismic energy dissipation were studied, and then algorithms of its optimization and design were presented. Regarding an actual high-rise building with strengthened storey within a high intensive seismic region as an example, numerical simulation results revealed that its lateral displacement curve has abrupt changes, and absence of slabs causes the whole structural deformation laws to change; at the same time, its storey displacement angles and bottom storey shears decrease after adding viscous liquid dampers; effect of seismic energy dissipation is good after optimization.

关 键 词：加强层 侧移 粘滞流体阻尼器 减震 

分 类 号：TU974[建筑科学—建筑技术科学]