摘要
为了提高结构的抗震性能,提出了一种双重耗能摇摆桁架-钢框架结构体系,即在摇摆桁架和钢框架连接处安装黏滞阻尼器,并在桁架底部设置自复位支撑(SCED)。建立了该系统的数值模型,并与摇摆桁架-钢框架对比分析,以研究其在地震下的抗震性能。结果表明:黏滞阻尼器在地震作用下充分发挥耗能能力,自复位支撑在地震作用下的残余应变基本为零,并能为结构提供足够的自复位能力,结构的抗震性能得到了很大提高。
To improve the seismic performance of the structure,a double energy consumption rocking truss-steel frame structure system is put forward,that is,dampers are installed at the connection between the rocking truss and the steel frame,and self-centering energy dissipates(SCED)are equipped at the bottom of the truss.The numerical model of the system is established and compared with the rocking truss-steel frame to study its seismic performance.The results show that the viscous dampers fully exert its energy dissipation capacity,and the residual strain of SCED is close to zero,which can provide sufficient self-centering capability for the structure and improve structural seismic performance.
作者
仝强
叶晓康
常军
TONG Qiang;YE Xiao-kang;CHANG Jun(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China;Suzhou Industrial Park Baiming Construction Co.,Ltd.,Suzhou 215011,China)
出处
《混凝土与水泥制品》
2021年第2期74-78,共5页
China Concrete and Cement Products
基金
江苏省研究生科研与实践创新计划项目(SJCX18_0877)
江苏省研究生科研与实践创新计划项目(SJCX19_0842)。
关键词
双重耗能系统
摇摆桁架-钢框架
黏滞阻尼器
自复位支撑
Double energy consumption system
Rocking truss-steel frame
Viscous damper
Self-centering energy dissipative
