建筑结构学报2011,Vol.32Issue(9):11-19,9.
摇摆墙在框架结构抗震加固中的应用
Seismic retrofit of frame structures using rocking wall system
摘要
Abstract
An innovative seismic passive control system of rocking walls was introduced.Rocking walls are specially-detailed structural walls with finite rotating capacity at the base and large lateral stiffness.The rocking wall system is capable of controlling the lateral deformation pattern of the building structure and allows flexible arrangement of energy dissipation devices in order to increase the energy dissipation capacity of the building.Stiffness demand for the rocking wall was studied through nonlinear dynamic analysis of lumped mass model with vertically continuous components.An application of the rocking wall system to the seismic retrofit of an 11-story steel reinforced concrete frame was introduced.The seismic performances of the structure before and after the retrofit were compared through nonlinear dynamic analysis.Results show that the rocking wall system can significantly reduce the seismic responses to different earthquake ground motions as well as their dispersions.This makes the damage mechanism and the seismic performance of the retrofitted building more predictable.关键词
摇摆墙/损伤模式控制/耗能减震/抗震加固Key words
rocking wall/damage mechanism control/energy dissipation/seismic retrofit分类
土木建筑引用本文复制引用
曲哲,和田章,叶列平..摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):11-19,9.基金项目
国家科技支撑计划课题项目 ()
住房与城乡建设部专题项目 ()
国家自然科学基金重大研究计划重点项目 ()
城市重大超高层建筑工程地震灾害效应评价与减灾研究 ()