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带削弱型延性连接件的防屈曲支撑钢框架抗震性能研究

殷占忠,  黄耀邦,  徐德宇

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文章导航 > 工业建筑  > 2025 >  55(9): 141-151
殷占忠, 黄耀邦, 徐德宇. 带削弱型延性连接件的防屈曲支撑钢框架抗震性能研究[J]. 工业建筑, 2025, 55(9): 141-151. doi: 10.3724/j.gyjzG23070305
引用本文: 殷占忠, 黄耀邦, 徐德宇. 带削弱型延性连接件的防屈曲支撑钢框架抗震性能研究[J]. 工业建筑, 2025, 55(9): 141-151. doi: 10.3724/j.gyjzG23070305
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YIN Zhanzhong, HUANG Yaobang, XU Deyu. Study on Seismic Performance of Buckling Restrained Brace Steel Frame with Weakened Ductile Casting[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 141-151. doi: 10.3724/j.gyjzG23070305
Citation: YIN Zhanzhong, HUANG Yaobang, XU Deyu. Study on Seismic Performance of Buckling Restrained Brace Steel Frame with Weakened Ductile Casting[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 141-151. doi: 10.3724/j.gyjzG23070305
shu

带削弱型延性连接件的防屈曲支撑钢框架抗震性能研究

doi: 10.3724/j.gyjzG23070305

  • 1. 兰州理工大学土木工程学院, 兰州 730050;

  • 2. 兰州理工大学甘肃土木工程防灾减灾重点实验室, 西部土木工程防灾减灾教育部工程研究中心, 兰州 730050

基金项目: 

甘肃省住房和城乡建设厅科研项目（JK2022-06）；国家自然科学基金项目（51968044，52568077）。

详细信息
    作者简介:

    殷占忠，博士，主要从事大跨度空间结构与钢结构领域以及结构工程防灾减灾方面教学、科研与技术服务工作。电子信箱:yinzhanzhong@lut.edu.cn

Study on Seismic Performance of Buckling Restrained Brace Steel Frame with Weakened Ductile Casting

  • 1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;

  • 2. Key Laboratory of Disaster Prevention and Mitigation of Gansu Civil Engineering of Lanzhou University of Technology, Engineering Research Center of the Ministry of Education of Disaster Prevention and Mitigation of Western Civil Engineering, Lanzhou 730050, China

    摘要
  • 摘要: 为解决特殊中心支撑钢框架体系易发生焊接节点板脆性断裂，以及实现结构体系多阶段耗能的目的，将一种带削弱型延性连接件的防屈曲支撑系统引入特殊中心支撑钢框架结构。采用ABAQUS软件建立了12榀不同参数的结构模型进行低周往复加载，结果表明：引入该支撑系统的结构耗能性能良好，结构的非弹性变形主要集中在削弱型延性连接件耗能段区域，较好地缓解了焊接节点域的应力集中问题；在卡套的约束下，削弱型延性连接件耗能段长度对于模型耗能性能、极限承载力及刚度无明显影响；结合极限承载力分析，当轴力超强系数控制在0.92~1.10之间时，该结构体系抗震性能达到最佳。基于有限元分析结果对结构弹性刚度及屈服承载力进行了推导，理论结果与数值模拟结果误差在10%以内，具有较好的预测性。
    Abstract: To address the issue of brittle fracture of welding joints in special center-supported steel frame systems and achieve multi-staged energy dissipation， a buckling-resistant bracing system with a weakened ductile casting was introduced into the special center-supported steel frame structure. Twelve structural models with different parameters were established using ABAQUS software for low-cycle reciprocating loading. The results showed that the energy dissipation performance of the structure with the new bracing system was excellent， and the non-elastic deformation of the structure was mainly concentrated in the energy dissipation section of the weakening-type ductile casting， which effectively alleviated the stress concentration problem in the welding joint zone. Under the constraint of the sleeve， the length of the energy dissipation section of the weakening-type ductile casting had no significant effect on the energy dissipation performance， ultimate bearing capacity， and stiffness of the model. Combining the ultimate bearing capacity analysis， the seismic performance of the structural system was optimal when the axial force super-strong coefficient was controlled between 0.92 and 1.10. Based on the finite element analysis results， the elastic stiffness and yield bearing capacity of the structure were derived， and the error between the theoretical results and the numerical simulation results was within 10%， indicating satisfactory predictability.
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    • 参考文献(22)
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出版历程
  • 收稿日期:  2023-07-03
  • 网络出版日期:  2025-11-05

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