建筑结构学报2025，Vol.46Issue(4)：29-43,15.DOI:10.14006/j.jzjgxb.2024.0149
自复位摩擦耗能铰支钢筋混凝土剪力墙的设计与性能研究
Design and behavior of bottom hinged self-centering RC shear walls using self-centering friction devices
摘要
Abstract
Self-centering friction energy dissipation technology was adopted in the existing reinforced concrete(RC)shear walls to enhance their self-centering and energy dissipation performance,and novel bottom hinged self-centering friction energy dissipation reinforced concrete shear walls(SCF-RC walls)were produced.The construction specifications,working mechanism and design method of the SCF-RC walls were firstly introduced.Subsequently,finite element models of the SCF-RC walls were established utilizing OpenSees software to investigate their mechanical behavior under cyclic loadings.The feasibility of construction specifications and the effectiveness of design method of SCF-RC walls were verified.Parametric analyses were then conducted on SCF-RC walls to evaluate their bearing capacity,stiffness,self-centering performance and energy dissipation performance.The results show that the proposed construction specifications for SCF-RC walls effectively enhance the self-centering and energy dissipation performance of the existing RC walls.Additionally,the proposed design method is effective in the design of SCF-RC walls.Under cyclic loadings,the SCF-RC wall exhibits strength characteristics similar to that of the existing RC wall,with flag-shaped force-displacement hysteresis curves.When the sliding friction coefficients of SCF devices are identified,and along with an increase in the convex key angle,the moment contribution ratio of the SCF-RC wall initially increases and then decreases,while its equivalent viscous damping ratio initially decreases and then increases.When the convex key angles of SCF devices are identified,the increase of sliding friction coefficient minimally affects the moment contribution ratio of SCF-RC wall,while its equivalent viscous damping ratio gradually increases.Moreover,as the peak loading displacement increases,the equivalent viscous damping ratios of the SCF-RC walls gradually decrease.关键词
钢筋混凝土剪力墙/自复位/摩擦耗能/抗震性能/设计方法Key words
reinforced concrete shear wall/self-centering/friction energy dissipation/seismic performance/design method分类
建筑与水利引用本文复制引用
王维,李爱群,王星星..自复位摩擦耗能铰支钢筋混凝土剪力墙的设计与性能研究[J].建筑结构学报,2025,46(4):29-43,15.基金项目
国家重点研发计划(2017YFC0703600),国家自然科学基金项目(51708257,51708258). （2017YFC0703600）
