高烈度区某高层住宅建筑的隔震设计  

Seismic isolation design of a tall residential building in high intensity region

作　　者：曹加良[1] 许雅玲[2] 刘凯雁[3] 

机构地区：[1]国家电网公司直流建设分公司,北京100052 [2]首都经济贸易大学,北京100070 [3]中国电力工程顾问集团华北电力设计院工程有限公司,北京100011

出　　处：《建筑结构》2013年第22期56-60,共5页Building Structure

基　　金：国家重点基础研究发展计划973项目(2007CB714202)

摘　　要：为解决弱轴抗侧刚度不足的问题和降低地震作用对我国抗震设防高烈度区的某高层住宅建筑的影响,对其进行了隔震设计。结果表明:隔震设计能满足该结构抗震性能设计目标及《建筑抗震设计规范》(GB 50011—2010)的规定,隔震设计降低了抗震设防烈度以进行上部结构后抗震设计,从而实现降低工程造价的经济性要求;隔震支座竖向承压能力、竖向受拉能力、弹性复位能力、水平变形能力等是确保隔震设计有效性的重要指标;隔震层偏心率是考量隔震支座布置合理性的一个重要指标,通过控制隔震层偏心率,可实现减小上部结构扭转效应的目的。Considering the lack of lateral stiffness of weak axis and the need to reduce the effect that the earthquake action on a tall residential building in high intensity region in China,seismic isolation design is carried out of. The results show that the seismic isolation design of the structure can satisfy performance-based seismic design goals of the structure and meet the requirements of Code for seismic design of buildings（ GB 50011—2010）. Seismic isolation design reduces seismic intensity of the upper structure to design,which reduces the cost. Capacity of bearing,tensile,elastic reset and horizontal deformation of isolation bearings are important indexes to ensure the validity of isolation design. Isolation layer eccentricity is an important index to evaluate rationality of isolation bearings layouts,and torsion effects of upper structure can be reduced by controlling the eccentricity of isolation layer.

关 键 词：高层建筑 隔震结构 橡胶隔震支座 高烈度区 隔震设计 住宅建筑 

分 类 号：TU311.3[建筑科学—结构工程] TU352.1