对4个钢筋钢纤维混凝土框架边节点进行低周反复加载试验研究,探讨钢纤维体积率和配箍率对该类型节点抗震性能的影响。结果表明,随着钢纤维体积率和配箍率的增大,加强了对节点核心区混凝土的约束作用,增强了节点核心区抗剪能力,减慢了抗剪承载力退化速率,减缓了节点刚度退化程度,降低了刚度退化状况,减小了节点核心区剪切变形,增大了节点延性,提高了框架节点的耗能能力。 Low-cycle repeated loading tests on four steel fiber reinforced fiber reinforced concrete frame joints were conducted to investigate the influence of steel fiber volume fraction and stirrup ratio on the seismic performance of this type of joint. The results show that with the increase of the volume fraction of steel fiber and the ratio of stirrup, the restraint effect on the concrete in the core region of the joints is strengthened and the shear resistance of the core region of the joints is enhanced, the degradation rate of the shear strength is slowed down, The degree of stiffness degradation reduces the stiffness degradation, reduces the shear deformation in the core region of the node, increases the node ductility, and increases the energy dissipation capacity of the frame node.