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Q960高强钢锥形削弱梁柱节点滞回性能及恢复力模型
作者:
作者单位:

1.重庆大学 土木工程学院，重庆 400045;2.福建省水利水电勘测设计研究院有限公司，福州 350000;3.华润置地有限公司，成都 610066;4.河钢材料技术研究院用户技术中心， 石家庄 050000

作者简介:

聂诗东（1974—），男，博士，副教授，主要从事钢结构研究，(E-mail) nieshidong@cqu.edu.cn。

中图分类号:

TU391

基金项目:

高性能建筑结构钢设计应用基础研究(H20200688)；高等学校学科创新引智计划项目(B18062)。


Hysteretic behavior and restoring force model of Q960 high strength steel weakened beam-column joints
Author:
Affiliation:

1.School of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China;2.Fujian Provincial Investigation, Design & Research Institute of Water Conservancy & Hydropower Co., Ltd., Fuzhou 350000, P. R. China;3.China Resources Land Limited, Chengdu 610066, P. R. China;4.User Technology Department, Materials Technology Research Institute of HBIS, Shijiazhuang 050000, P. R. China

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    摘要:

    为研究某新型高性能抗震结构钢的抗震性能，对3种不同连接构造的高强钢梁柱节点开展拟静力作用下的滞回试验。结果表明，“锥形削弱”节点的延性发挥较为充分且耗能能力较高，“复合型”连接构造可有效提升节点的抗震性能。以试验数据为基础，建立了考虑刚度退化的三线性恢复力模型，采用试验特征点拟合骨架曲线，并用指数函数微分方程求解滞回曲线表达式。结果表明，所建模型的重构解析误差控制在10%以内，可有效表征节点的滞回响应。

    Abstract:

    To study the hysteretic behavior of a new kind of high-performance steel produced by HBIS(Hebei-Iron-and-Steel), three beam-column joints with different connection forms were designed and tested under quasi-static loading conditions. The experimental results show that the “taper weakened” joint exhibits fully developed ductility and excellent energy dissipation capacity, while the “composite” joint shows significantly improved seismic performance. Based on the test results, a trilinear restoring force model considering stiffness degradation was established, with the skeleton curve fitted to key experimental feature points.The hysteretic curve expression was derived using an exponential differential equation. The reconstructed model achieved an analytic error within 10%, effectively capturing the hysteretic response of the jonts.

    参考文献
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聂诗东,龙泓州,叶曦雨,邓颜智,陈振业,马成,潘进.Q960高强钢锥形削弱梁柱节点滞回性能及恢复力模型[J].重庆大学学报,2025,48(3):81-93.

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  • 收稿日期:2024-05-17
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