摘要
分析研究预应力混凝土自复位墙结构的抗震设计,提出自复位墙抗震设计的4个关键设计步骤,包括墙体设计弯矩需求计算、预应力筋及阻尼器面积设计、预应力筋校核及墙体剪力校核.以1栋6层框架预应力混凝土自复位墙为算例,开展框架-自复位墙结构的拟静力分析,结果表明框架-自复位墙结构在1%的侧移角时体系残余侧移角仅为0.2%;而顶部侧移角达到2%时残余侧移角不到0.5%.
Seismic design and analysis of prestressed concrete self-centering wall structures are investigated.Four key design procedures of self-centering walls are presented,including moment demand of wall design,design of prestressing tendons and dampers,checking of prestressing tendons,and checking of wall shears.A self-centering wall computing example is designed for a 6-story frame.Numerical pseudo-static analysis is carried out for the self-centering frame-wall structures.Results shows that the residual deformation of structural system is only 0.2%when the lateral displacement ratio is 1%,and less than 0.5%when the lateral displacement ratio is 2%.
作者
张军
朱冬平
周臻
ZHANG Jun;ZHU Dong-ping;ZHOU Zhen(School of Transportation and Civil Engineering Nantong University,226019,Nantong,Jiangsu,China;Jiangsu Zhongnan Construction Industry Group Co.,Ltd.,226100,Nantong,Jiangsu,China;Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education,Southeast University,210096,Nanjing,China)
出处
《建筑技术》
2020年第4期457-460,共4页
Architecture Technology
基金
江苏省重点研发计划资助项目(BE2018675)。
关键词
自复位墙
抗震设计
抗震分析
self-centering wall
seismic design
seismic analysis
