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在低配筋量的单排配筋混凝土低矮剪力墙中配置斜向钢筋,可限制基底施工缝处水平剪切滑移和墙体斜裂缝开展,提高混凝土低矮剪力墙的抗震耗能能力.为探求带斜筋单排配筋混凝土低矮剪力墙的优化配筋设计方法,进行了5个不同配筋设计的剪力墙模型低周反复荷载试验,对比分析了各模型的破坏特征、滞回性能、承载与变形能力、刚度退化规律、耗能能力及钢筋应变发展规律.试验结果表明:对于单排配筋混凝土低矮剪力墙,斜筋可有效控制其剪切变形,使其抗震性能优于不带斜筋的剪力墙;合理配置斜筋,可明显提高混凝土低矮剪力墙的抗震耗能能力,获得性价比较高的抗震墙.
The arrangement of diagonal reinforcing bars in single-row reinforced concrete low-shear wall with low reinforcement can limit the horizontal shear-slips and wall diagonal cracks in the foundation joint, and increase the seismic resistance of low-shear walls In order to explore the optimal reinforcement design method for the single-row reinforced concrete low-rise shear wall with diagonal bars, five low-cycle repeated load tests of the shear wall model with different reinforcement design were carried out, Failure characteristics, hysteretic behavior, load carrying and deformability, stiffness degradation, energy dissipation capacity and strain evolution of steel bar.The experimental results show that for a single row of reinforced concrete low shear walls, diagonal bars can effectively control the shear deformation , So that its seismic performance is better than the non-diagonal shear wall; rational allocation of diagonal ribs, can significantly improve the seismic energy dissipation capacity of low shear walls of concrete, access to cost-effective seismic wall.