徐铭蔚1,2,徐铨彪1,2,龚顺风1,周鹏洋3
徐铭蔚,徐铨彪,龚顺风,等.复合配筋混凝土剪力墙抗震性能数值分析[J].混凝土与水泥制品,2023(6):75-79.
XU M W,XU Q B,GONG S F,et al.Numerical Analysis of Seismic Performance of Composite Reinforced Concrete Shear Walls[J].China Concrete and Cement Product,2023(6):75-79.
复合配筋混凝土剪力墙抗震性能数值分析
徐铭蔚1,2,徐铨彪1,2,龚顺风1,周鹏洋3
徐铭蔚,徐铨彪,龚顺风,等.复合配筋混凝土剪力墙抗震性能数值分析[J].混凝土与水泥制品,2023(6):75-79.
XU M W,XU Q B,GONG S F,et al.Numerical Analysis of Seismic Performance of Composite Reinforced Concrete Shear Walls[J].China Concrete and Cement Product,2023(6):75-79.
摘 要:通过给暗柱配置预应力钢绞线,墙身配置普通钢筋的复合配筋方式设计了3面复合配筋预应力钢绞线剪力墙,并设计了1面普通钢筋混凝土剪力墙进行对比。基于Diana有限元分析软件对两种墙体进行了拟静力分析,对比研究了暗柱不同配筋形式及轴压比对剪力墙滞回性能、承载性能、变形性能、刚度退化、耗能能力及裂缝开展的影响。结果表明:与普通钢筋混凝土剪力墙相比,复合配筋预应力钢绞线剪力墙可以有效地提高构件的承载性能,并抑制裂缝的开展;随着轴压比的增大,构件承载力有所提升,但延性显著下降。
Abstract:Three composite reinforcement prestressed strand shear walls and one ordinary reinforced concrete shear wall were designed by the composite reinforcement method of the concealed column configuration prestressed strand and ordinary reinforcement in the wall. Based on Diana finite element analysis software, the simulations of the two types of walls were carried out in a quasi-static test, and the effects of different reinforcement forms and axial compression ratios of the concealed columns on the hysteresis performance, load-bearing performance, deformation performance, stiffness degradation, energy dissipation capacity and crack development of the shear walls were comparatively studied. The results show that the composite reinforced prestressed stranded concrete shear walls can effectively improve the load bearing performance and inhibit the crack development compared with the ordinary reinforced concrete shear walls. With the increase of axial compression ratio, the load capacity of the member is increased, but the ductility of the member is significantly decreased.
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