摩擦型自复位耗能拉索减震加固分析  

Analysis on Seismic Reinforcement of a Friction-type Self-centering Energy Dissipating Tendon

作　　者：贾慧娟[1] 王际帅 郭彤[2] 宣卫红[1] 陈育志[1] JIA Hui-juan;WANG Ji-shuai;GUO Tong;XUAN Wei-hong;CHEN Yu-zhi(Jinling Institute of Technology,Nanjing 211169,China;Southeast University,Nanjing 210096,China)

机构地区：[1]金陵科技学院建筑工程学院,江苏南京211169 [2]东南大学土木工程学院,江苏南京210096

出　　处：《金陵科技学院学报》2021年第4期74-78,共5页Journal of Jinling Institute of Technology

基　　金：国家自然科学基金青年项目(51580251);江苏省“六大人才高峰”高层次人才项目(jz-062);江苏省青蓝工程;江苏省高校自然科学基金面上项目(17KJB560004)。

摘　　要：为提高建筑抗震性能并减小震后残余变形,提出了一种摩擦型自复位耗能拉索(FSCEDT),根据加固机理分析了其在各个工作阶段的受力状态。为验证FSCEDT减震加固的适用性,以需要进行抗震加固的某6层框架结构为例,对其加固前后多遇和罕遇地震下的弹性和弹塑性动力时程进行分析。结果表明:FSCEDT具有良好的自复位性能,能够显著减小结构在地震中的动力响应和震后残余变形,可以应用于结构的抗震和加固,具有显著的经济效益和应用价值。In order to improve the seismic performance of buildings and reduce the residual deformation after earthquake,a new type of friction-type self-centering energy dissipating tendon(FSCEDT)is proposed.The stress states of FSCEDT in each working stage are analyzed according to its reinforcement mechanism.In order to verify the applicability of seismic reinforcement of FSCEDT,a 6-story frame structure that needs seismic reinforcement is taken as an example to analyze the elastic and plastic dynamic time course under frequent and rare earthquakes before and after reinforcement.The results show that FSCEDT has good self-centering performance.It can significantly reduce the dynamic response during an earthquake and the residual deformation of the structure after the earthquake.It can be applied to the seismic reinforcement of the structure,and has significant economic benefits and value.

关 键 词：自复位 摩擦型 拉索 耗能 抗震加固 

分 类 号：TU37[建筑科学—结构工程]