摘要
科兴中维某框架结构因工艺调整、抗震设防类别提高,采用增设黏滞阻尼器的消能减震加固方式。本文通过建立弹塑性模型进行大震弹塑性分析,结果表明本结构减震加固后,黏滞阻尼器起到了良好的减震耗能作用,结构顶点位移、层间位移角、基底剪力等关键指标均满足大震要求;地震能量主要由黏滞阻尼器及框架梁消耗,框架柱基本不参与耗能;减震加固后框架梁满足性能水准要求,框架柱包钢加固后满足性能水准要求。
Due to the process adjustment and fortification category improvement,a frame structure of Sinvoac adopts the shock-absorption reinforcement method with the addition of viscous dampers.In this paper,the elastoplastic analysis of rare earthquakes is carried out by constructing an elastoplastic model.The results show that after adding dampers for shock-absorbing reinforcement of the structure,the key indicators such as structural apex displacement,interstory displacement angle,and base shear force all meet the requirements of rare earthquakes;the seismic energy is mainly dissipated by dampers and frame beams,and frame columns are basically not involved in energy consumption;after shock-absorption reinforcement,the frame beams meet the performance level requirements,and the frame column meets the performance level requirements after reinforced by the outer steel.
作者
袁鹏
宋刚
曹许
王巍
姜波
李徐
Yuan Peng;Song Gang;Cao Xu;Wang Wei;Jiang Bo;Li Xu(Institute of Earthquake Engineering,China Academy of Building Research,Beijing 100013,China;CABR(Beijing)Seismic Engineering Structural Design Co.Ltd,Beijing 100013,China;Nanjing Linjiang Old City Reconstruction and Construction Investment Co.Ltd,Nanjing 210005,China;Tsinghua Unigroup,Beijing 100191,China;Beijing Jingtou Yintai Shangde Real Estate Co.Ltd,Beijing 102200,China)
出处
《工程抗震与加固改造》
北大核心
2024年第1期63-68,共6页
Earthquake Resistant Engineering and Retrofitting
关键词
减震加固
黏滞阻尼器
生物安全三级实验室
弹塑性模型
shock absorption reinforcement
fluid viscous damper
classⅢbiosafety laboratory
elastoplastic model