摘要
为研究配置HRBF500级钢筋的混凝土柱抗震性能,制作了4根500MPa级钢筋混凝土矩形截面柱进行低周反复荷载试验,考虑了配筋率、轴压比、配箍率对构件抗震性能的影响。结果表明,HRBF500级钢筋混凝土柱具有良好的抗震性能和耗能性能,随着配筋率的增加、轴压比的减小、体积配箍率的增大,试件抗震性能和延性均相应提高。给出的恢复力模型各特征参数理论计算值与试验实测值吻合较好,可应用于工程实践。
In order to investigate the seismic behavior of concrete columns reinforced with HRBF500 steel bars,four rectangle cross-section concrete columns reinforced with HRBF500 bending low-cycle reversed loading experiment are made.Effects of reinforcement ratio,axial compression ratio and stirrup ratio on the seismic performance are analyzed.The results show HRBF500 RC columns appear good seismic behavior and energy dissipation capacity,and with the increasing of reinforcement ratio or the increasing of stirrup ratio or the decreasing of axial compression ratio,the components＇ seismic behavior and ductility are correspondently improved.Restoring force model and calculation formula for characteristic parameters are given,and the results show theoretical characteristic parameters are in accord with experimental value and could be used in practice.
出处
《工程抗震与加固改造》
北大核心
2014年第2期112-118,共7页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金(51308490)
江苏省自然科学基金(BK20130450)
住房和城乡建设部科学技术计划项目(2013-K4-17)
江苏省高校自然科学基金项目(13KJB560015)
扬州市科技计划项目(2012149)
东南大学混凝土及预应力混凝土教育部重点实验室开放基金
关键词
HRBF500
混凝土柱
抗震性能
延性
耗能
HRBF500
concrete column
seismic performance
ductility
energy dissipation
