高轴压比双层钢板-高强混凝土组合剪力墙抗震性能试验研究

发布时间：2018-03-21 03:30

本文选题：双层钢板-高强混凝土组合剪力墙　切入点：拟静力试验　出处：《工程力学》2014年05期 　论文类型：期刊论文

【摘要】：为研究高轴压比下双层钢板-高强混凝土组合剪力墙的抗震性能,对4个剪跨比为2.5的试件进行了拟静力加载试验。通过改变约束拉杆和加劲肋的间距,研究其在往复水平荷载作用下的破坏机理、滞回性能、变形能力以及耗能能力。试验结果表明,这种剪力墙的破坏形态为墙底部截面钢板被压曲、核心混凝土被压碎的弯曲型破坏;试件的滞回曲线饱满,没有明显的捏缩现象;位移延性系数在3.11~4.37,等效粘滞阻尼比在0.158~0.291,延性系数和耗能指标均满足结构抗震设计要求。在轴压比相同条件下,设置加劲肋试件的抗震性能优于设置约束拉杆的试件,随着约束拉杆和加劲肋间距的减小,试件的变形能力增加,表现出较好的耗能能力。
[Abstract]:For the study of high axial compression ratio and double steel - seismic performance of high-strength concrete shear walls, the 4 shear span ratio is 2.5 tested by the pseudo static test. The spacing of binding bars and stiffening rib, on the horizontal cyclic loading failure mechanism, hysteretic behavior, deformation capacity and energy dissipation capacity. Experimental results show that the failure mode of the shear wall is the wall at the bottom section of steel plate is buckling, the core concrete is curved crushing damage; hysteretic curve is full, no obvious pinch phenomenon; the displacement ductility coefficient in 3.11~4.37 than in 0.158~0.291, the equivalent viscous damping coefficient and ductility energy consumption indicators meet the requirements of seismic design. The axial compression ratio under the same conditions, the stiffener test specimen has better seismic performance than the binding bars, with the decrease of binding bars and stiffener spacing, test The deformation capacity of the part is increased and the energy dissipation capacity is better.

【作者单位】：长安大学建筑工程学院;
【基金】：中国博士后科研基金项目(2012M511958) 国家自然科学基金项目(51308052)
【分类号】：TU398.9

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