组合减震技术在加固改造项目中的应用
Application of combined shock absorption technology in reinforcement retrofitting project
吴昊 1贺阳 1江洋 1杨勇 1吴子夏 1刘书舟1
作者信息
- 1. 北京市建筑设计研究院股份有限公司,北京 100045
- 折叠
摘要
以新冠肺炎疫情期间的应急项目加固改造为例,主要探究组合减震技术在加固改造项目中的应用.鉴于既有结构抗震性能以及防震缝宽度不足、结构整体扭转和局部抗震承载力不足的问题,兼顾加固工程量、最大限度减轻对原有建筑影响以及加固成本,最终采用组合减震技术(VFW+BRB)对原有框架进行加固设计.根据项目实际情况,按照不同的部位和重要程度制定了性能目标和设计.计算结果表明,采用组合减震技术加固后的结构在遭遇地震作用时,可以显著减少顶点位移和水平加速度,降低地震响应,提高结构抗震冗余度.
Abstract
Taking the reinforcement and retrofitting of emergency projects during the COVID-19 as an example,the application of combined shock absorption technology in reinforcement and retrofitting projects was mainly explored.In view of the insufficient seismic performance of the existing structure,the insufficient width of the seismic joint,the insufficient overall torsion and local seismic bearing capacity of the structure,taking into account the amount of reinforcement engineering,minimizing the impact on the original building and the cost of reinforcement,the combined shock absorption technology(VFW+BRB)was finally adopted to strengthen the original frame.According to the actual situation of the project,the performance objectives and designs were formulated according to different parts and importance.The results of the calculation show that the structure reinforcement by the combined shock absorption technology can significantly reduce the vertex displacement and horizontal acceleration,reduce the seismic response,and improve the seismic redundancy of the structure.
关键词
组合减震技术/加固改造/黏滞阻尼墙/位移阻尼器/消能子结构/抗震性能化设计Key words
combined shock absorption technology/reinforcement retrofitting/viscous damping wall/displacement damper/energy dissipation substructure/seismic performance-based design引用本文复制引用
出版年
2024
NETL
NSTL
万方数据