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钢管柱-剪力墙转换节点抗震性能的数值模拟

胡亮 杨子明 詹旭 陈驹

胡亮, 杨子明, 詹旭, 陈驹. 钢管柱-剪力墙转换节点抗震性能的数值模拟[J]. 钢结构(中英文), 2024, 39(9): 24-33. doi: 10.13206/j.gjgS23072702
引用本文: 胡亮, 杨子明, 詹旭, 陈驹. 钢管柱-剪力墙转换节点抗震性能的数值模拟[J]. 钢结构(中英文), 2024, 39(9): 24-33. doi: 10.13206/j.gjgS23072702
Liang Hu, Ziming Yang, Xu Zhan, Ju Chen. Numerical Analysis on Seismic Behavior of Steel Tubular Column-Shear Wall Transformation Nodes[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(9): 24-33. doi: 10.13206/j.gjgS23072702
Citation: Liang Hu, Ziming Yang, Xu Zhan, Ju Chen. Numerical Analysis on Seismic Behavior of Steel Tubular Column-Shear Wall Transformation Nodes[J]. STEEL CONSTRUCTION(Chinese & English), 2024, 39(9): 24-33. doi: 10.13206/j.gjgS23072702

钢管柱-剪力墙转换节点抗震性能的数值模拟

doi: 10.13206/j.gjgS23072702
基金项目: 

国家自然科学基金面上项目(52078249)

详细信息
    作者简介:

    胡亮,高级工程师,主要从事电力及环保新能源结构设计,Email: yangziming@zjuedu.cn

Numerical Analysis on Seismic Behavior of Steel Tubular Column-Shear Wall Transformation Nodes

  • 摘要: 为探讨轴向压力和低周往复荷载双重作用下,不同高度混凝土内填充的钢管柱的抗震性能,将有限元模型和试验结果进行比较,验证了有限元建模方法的准确性。基于已验证的有限元模型,围绕滞回曲线、骨架曲线、初始刚度和刚度退化曲线、能量耗能能力,探究核心混凝土高度、核心混凝土强度、外钢管的钢材强度、轴压比和构件的径厚比等参数对钢管柱抗震性能的影响。结果表明:1)核心混凝土的高度对钢管柱的抗震性能影响最为显著,填充混凝土高度较低的钢管柱由于混凝土填充量较小,其峰值荷载和失效位移较低;随着混凝土高度从 1/4 钢管柱高度增加到 1/2钢管柱高度,峰值荷载和失效位移显著提高,循环加载总次数也明显增加,因此,在设计钢管柱时,应特别关注混凝土的填充高度,以确保足够的抗震性能;2)核心混凝土和钢材的强度对抗震性能的影响较小,高强度混凝土和钢材不会显著增加钢管柱的初始刚度,即在一定范围内,可以选择不同的混凝土和钢材材料,而不会对抗震性能产生重大影响,但实际工程中,仍然需要根据具体情况选择合适的材料以满足强度和刚度要求;3)轴压比和构件径厚比的增加可以在一定程度上提高抗震性能,特别是对耗能能力有积极影响,增加轴压比可以提高钢管柱的承载能力,而增加构件的径厚比可以增加钢管柱的刚度,从而增加其抗震性能,因此,在实际设计中,需要综合考虑这两个参数以优化钢管柱的抗震性能。
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出版历程
  • 收稿日期:  2023-07-27
  • 网络出版日期:  2024-09-19

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