摘要
完成了5个接近足尺的不同轴压比的高剪压比钢筋混凝土框架中间层中节点平面梁柱组合体的低周交变加载试验,弥补了国内外抗震节点试验在剪压比高参数区试验数据的不足。通过较全面测试和分析梁筋在节点中的粘结及滑移规律、节点水平箍筋各肢的受力规律以及组合体的滞回耗能及刚度变化规律,进一步揭示了这类节点的剪力传递机构特征、损伤发育特征及其综合抗震性能,为完善设计规范和在框架非弹性动力反应分析中建立更合理的分析模型和滞回模型提供了依据。
The reversed cyclic loading tests of 5 nearly full - Scale beam - column assembly specimens with high shear - compression ratio under different axial loads in reinforced concrete plane frames have been completed, which cover the shortage in the field of high shear - compression parameter among seismic joint experiments in the world. Based on relatively complete measuring and analyses of the law for the bond and slip of the beam bar through the joint, the stress of the level stirrup legs and hysteretic dissipated energy and the change of rigidity, the characteristic of shear transfer mechanlsms makes inelasti and damage development and comprehensive seismic behavior of the assembly are proposed in this paper. It it possible to improve design codes and to establish relatively reasonable analytic modes and hysteretic modes in c dynamic response analyses of the frame.
出处
《重庆建筑大学学报》
EI
CSCD
北大核心
2006年第1期40-46,共7页
Journal of Chongqing Jianzhu University
基金
国家自然科学基金面上项目支持(59878056)
关键词
钢筋混凝土
抗震性能
梁柱节点
剪压比
轴压比
reinforced concrete
seismic behavior
beam- column joint
shear- compression ratio
axial load ratio
