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复合配筋混凝土剪力墙抗震性能数值分析
Numerical Analysis of Seismic Performance of Composite Reinforced Concrete Shear Walls
2023年第6期
钢筋混凝土剪力墙;钢绞线;复合配筋;抗震性能;轴压比;钢绞线;Diana软件
Reinforced concrete shear wall; Steel strand; Composite reinforcement; Seismic behavior; Axial ratio;Steel strand; Diana software
2023年第6期
10.19761/j.1000-4637.2023.06.075.05
徐铭蔚1,2,徐铨彪1,2,龚顺风1,周鹏洋3
1.浙江大学 建筑工程学院,浙江 杭州310058;2.浙江大学平衡建筑研究中心,浙江 杭州 310058; 3.浙江大东吴建筑科技有限公司,浙江 杭州 313009

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.

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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.
英文名 : Numerical Analysis of Seismic Performance of Composite Reinforced Concrete Shear Walls
刊期 : 2023年第6期
关键词 : 钢筋混凝土剪力墙;钢绞线;复合配筋;抗震性能;轴压比;钢绞线;Diana软件
Key words : Reinforced concrete shear wall; Steel strand; Composite reinforcement; Seismic behavior; Axial ratio;Steel strand; Diana software
刊期 : 2023年第6期
DOI : 10.19761/j.1000-4637.2023.06.075.05
文章编号 :
基金项目 :
作者 : 徐铭蔚1,2,徐铨彪1,2,龚顺风1,周鹏洋3
单位 : 1.浙江大学 建筑工程学院,浙江 杭州310058;2.浙江大学平衡建筑研究中心,浙江 杭州 310058; 3.浙江大东吴建筑科技有限公司,浙江 杭州 313009

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
参数
结论
参考文献
引用本文

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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(1)暗柱中配置预应力钢绞线可提高剪力墙的承载力、抗震性能和刚度,但由于预压应力的存在,配置预应力钢绞线的剪力墙的极限位移有小幅降低。后续设计与研究中可以根据实际情况通过降低构件的预应力大小、提高混凝土强度等级或提高暗柱的配箍率来保证墙体的变形延性。
(2)轴压比对配置预应力钢绞线的剪力墙的抗震性能有较大影响。随着轴压比的增大,构件的承载力有一定的提高,但其变形延性与耗能能力均有明显下降。因此,针对不同使用场景应合理控制构件的轴压比。
(3)采用预应力钢绞线可以有效地约束加载过程中构件裂缝的开展。相同位移条件下,配置预应力钢绞线的剪力墙较配置普通螺纹钢筋剪力墙的裂缝应变更小,其耐久性较好,墙体刚度退化速率也较慢。

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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.

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