摘要
学校类加固工程项目,抗震要求高、施工周期短,同时要求不影响原有建筑。综合考虑经济性指标,本项目采用了隅撑式黏滞阻尼器加固方案。该方案在罕遇地震下采用PERFORM 3D软件对结构进行弹塑性时程分析,其分析结果表明:黏滞阻尼器在罕遇地震下能起到很好的效果,提高了整体结构的抗震性能。所采用的减震加固方案为单榀框架加固类工程提供了一种新的加固方式,具有一定的借鉴意义。
The seismic requirements of school building are high,at the same time it also requires a short construction period and the demand do not affecting the original building.Considering economic aspect,the Bracing type(Knee-brace type)viscous dampers scheme was finally adopted.In this project,the elastic-plastic time history analysis of the structure was carried out by using the PERFORM 3 D under the rare earthquake,and the analysis results showed that the viscous dampers have effectively behaved to improve the seismic performances of the overall structure.The seismic energy dissipation method provides a new seismic strengthening method for single-span frame structure and can provide a reference for similiar projects.
作者
胡庆生
Hu Qingsheng(CCDI Suzhou Exploration&Design Consultant Co.,Ltd.,215123 China)
出处
《特种结构》
2020年第3期112-115,共4页
Special Structures
关键词
结构加固
单榀框架
消能减震技术
Structure reinforcement
Single-span frame structure
Energy dissipation technology
