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通过对配置600 MPa级高强钢筋高强混凝土框架梁柱边节点进行拟静力试验研究,对比分析高强钢筋高强混凝土框架梁柱边节点的滞回曲线、承载能力、位移及延性、刚度退化、耗能能力等抗震性能指标。研究结果表明:边节点试件的承载能力随着剪压比和钢筋强度等级的提高而提高,减小边节点剪压比、增加体积配箍率或提高钢筋强度可以改善节点的滞回特性,提高边节点的变形能力、耗能能力、延性性能,减缓边节点的刚度退化,从而提高配置600 MPa级高强钢筋高强混凝土框架梁柱边节点的抗震性能。
The quasi-static tests on the beam-column joints of 600 MPa high-strength high-strength concrete frame beams are carried out. The hysteretic curves, bearing capacity, displacement and ductility of the beam-column joints of high-strength high-strength concrete Ability and other seismic performance indicators. The results show that the load carrying capacity of the edge joint specimens increases with the increase of the shear stress ratio and strength of the steel bars. Reducing the shear ratio of the edge joints, increasing the volumetric ratio of the tie bars or increasing the strength of steel bars can improve the hysteretic behavior of the joints, Improve the deformation capacity, energy dissipation capacity and ductility of the edge joints and reduce the stiffness degradation of the edge joints, so as to improve the seismic performance of the beam-column joints with 600 MPa high strength concrete beams.