建筑结构学报2018,Vol.39Issue(2):54-60,7.DOI:10.14006/j.jzjgxb.2018.02.006
柱端铰型受控摇摆式钢筋混凝土框架抗震性能有限元分析
Finite element analysis on seismic performance of controlled rocking reinforced concrete frame with column-end-hinge joints
摘要
Abstract
Controlled rocking reinforced concrete frame with column-end-hinge joints (CR-RCFC) is a new type energy-dissipation and seismic-reducing structural system.The rocking mechanism and construction details of rocking joints were introduced and the finite element models of CR-RCFC and conventional frame were built with time-history analysis method.The dynamic characteristics,acceleration responses,shear force responses and displacement responses of above mentioned models under different earthquake levels were discussed,and compared with the results of shaking table tests to validate the numerical modeling.Research results indicate that CR-RCFC has lower acceleration response due to its weakened joint stiffness and lower lateral resistance stiffness.The displacement response of the CR-RCFC can be controlled effectively by inter-story dampers,and the mainbody of the CR-RCFC keeps damage-free during rare earthquake,which indicates that CR-RCFC has an excellent seismic performance.关键词
受控摇摆钢筋混凝土框架/柱端铰型/数值模拟/节点设计/抗震性能Key words
controlled rocking reinforced concrete frame/column-end-hinge joint/numerical simulation/joint design/seismic performance分类
建筑与水利引用本文复制引用
鲁亮,张会会,代桂霞,江乐..柱端铰型受控摇摆式钢筋混凝土框架抗震性能有限元分析[J].建筑结构学报,2018,39(2):54-60,7.基金项目
国家自然科学基金项目(51678453),国家自然科学基金委国际合作项目(51261120377). (51678453)