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带约束拉杆双钢板-混凝土组合剪力墙抗震性能数值模拟及参数分析
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Numerical Simulation and Parameter Analysis on Seismic Behavior of Composite Concrete and Double Steel Plates Shear Walls with Binding Bars
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    为了研究带约束拉杆的双钢板-混凝土组合剪力墙的抗震性能,进行了16个该形式组合剪力墙的反复加载试验,并采用OpenSees程序对带约束拉杆的双钢板-混凝土组合剪力墙试件进行数值模拟.在试验及数值模拟的基础上,对影响该形式组合剪力墙抗震性能的主要参数进行分析.结果表明,高宽比、轴压比以及约束拉杆间距对剪力墙的抗震性能影响显著.随着高宽比的增大,组合剪力墙的初始刚度以及屈服荷载和峰值荷载减小显著,其后期刚度退化和耗能能力降低;轴压比对组合剪力墙抗震性能的影响主要表现在后期刚度的退化程度;约束拉杆间距的减小可以提高组合剪力墙的承载力,减弱后期的刚度退化程度,增大其耗能能力.

    Abstract:

    In order to study the seismic behavior of composite concrete and double steel plate shear walls with binding bars, sixteen specimens were tested under reversed cyclic lateral load, and the numerical simulation by using the analytical software OpenSees was also conducted for the composite concrete and double steel plate shear walls. On the basis of experimental and numerical analysis, the main parameters affecting on the seismic behavior of the composite shear walls were evaluated. All the results indicate that the factors of aspect ratios, axial compression ratios, and binding bar spacing significantly affect the seismic behavior of the composite shear walls. As the aspect ratios of the composite concrete and steel plate shear walls increase, the initial stiffness, peak load, yield load, post-yield stiffness, and energy dissipation capacity decrease obviously. The axial compression ratios exhibit an effect on the degradation of the post-yield stiffness. In addition, the close spacing of binding bars can improve the bearing capacity and energy dissipation capacity of the composite shear walls, and reduce the degradation of the post yield stiffness.

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程春兰,周德源,朱立猛.带约束拉杆双钢板-混凝土组合剪力墙抗震性能数值模拟及参数分析[J].湖南大学学报:自然科学版,2016,43(9):10~17

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  • 在线发布日期: 2016-10-08
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