高层建筑局部消能减震新体系研究  

Research on A New Structure with Local Energy Dissipation to Reduce High-rise Building Seismic Response

作　　者：靳金平[1] 卫丽[2] 张文芳[2] 

机构地区：[1]核工业第二研究设计院,北京100840 [2]太原理工大学

出　　处：《工程抗震与加固改造》2007年第4期37-43,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：山西省自然科学基金项目(20051053);太原市建管委城建科研项目(200534)

摘　　要：本文提出了高层建筑结构的一种局部消能减震新体系。该体系既利用了上下部结构的动力反馈作用,又充分发挥了上部阻尼支撑的消能减震作用。分析发现:多遇地震下结构各层的层间剪力可以减小30%以上,下部结构层间位移可以减小30%～45%,楼层总位移也可以减小35%以上;罕遇地震作用下下部结构层间位移和楼层总位移也可减小20%左右。同时利用粘滞阻尼支撑将上部结构的层间位移控制在允许范围内。In this paper, a new structure with local energy dissipation is put forward. Both dynamic interaction of upper and bottom structures and damper device are used to reduce seismic response. The researches indicate： Under frequently occurred earthquake, all story-shear can be reduced by more than 30 percent, story-displacement of bottom structure can be reduced by more than 30 percent and structural total displacement can be reduced by more than 35 percent. Under rarely occurred earthquake, story-displacement and structural total displacement of bottom structure can be reduced by about 20 percent, too.

关 键 词：局部消能减震 粘滞阻尼 时程分析 有限元法 

分 类 号：TU973.31[建筑科学—结构工程]