论文部分内容阅读
通过2个钢纤维高强混凝土框架边节点的低周反复加载试验研究和有限元分析,探讨了梁端钢纤维掺加范围对该类型节点抗震性能的影响。结果表明,增加梁端钢纤维掺加范围,增强了梁端受力性能,但是相对减小了节点核心区的抗剪性能,降低了框架节点的延性和耗能能力,增大了节点刚度退化程度和剪切变形,加快了框架节点承载力退化速率。
Through the low-cycle repeated loading test and finite element analysis of two steel fiber reinforced high-strength concrete frame side joints, the influence of the fiber doping range of beam end steel on the seismic performance of this type of joint is discussed. The results show that increasing the steel fiber splicing range at the end of the beam increases the mechanical behavior of the beam end, but reduces the shear resistance of the core region, reduces the ductility and energy dissipation capacity of the frame joints and increases the degree of stiffness degradation and Shear deformation, speed up the node bearing capacity degradation rate.