T形方颈单边螺栓连接梁柱节点抗弯承载力的扩大化参数分析

刘泉维; 孙乐乐; 叶守杰; 王培军; 侯钢领

doi:10.13206/j.gjgS24031702

T形方颈单边螺栓连接梁柱节点抗弯承载力的扩大化参数分析

doi: 10.13206/j.gjgS24031702

1. 青岛地铁集团有限公司, 山东青岛 266000;
2. 哈尔滨工程大学烟台研究院, 山东烟台 264003;
3. 山东大学土建与水利学院, 济南 250061

基金项目:

国家自然科学基金面上项目（52078280）；黑龙江省重点研发计划项目（2022ZX01A14）；山东省住房城乡建设科技计划项目（2024KYKF-JZGYH101）；烟台市校地融合发展项目（22MZ03CD012）；中央高校基本科研业务费项目（3072024JJ2701）。

详细信息

作者简介:
刘泉维，博士，研究员，主要从事装配式结构方面研究工作。

通讯作者:
孙乐乐，博士，副教授，主要从事装配式钢结构和组合结构抗震研究，lelesun117@hrbeu.edu.cn。

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出版历程
- 收稿日期: 2024-03-17
- 网络出版日期: 2025-06-07
- 刊出日期: 2025-03-25

Parametric Analysis on the Enhancement of Bending Capacity in T-stub Square-Neck Single-Side Bolted Connections

1. Qingdao Metro Group Co., Ltd., Qingdao 266000, China;
2. Yantai Research Institute, Harbin Engineering University, Yantai 264003, China;
3. School of Civil Engineering, Shandong University, Jinan 250061, China

摘要

摘要: 采用有限元数值模拟的方法对T形方颈单边螺栓连接钢梁-钢管柱节点抗弯承载力分析模型和计算公式进行了扩大化参数分析，以填补试验研究未考虑参数的空缺，验证了理论分析模型的可靠性和准确性。结果表明：1）所建立的节点三维有限元模型不仅能够准确预测节点在单调荷载下的破坏模式、各部件受力状态和屈服顺序，还能得到与试验结果吻合度较高的节点转角-弯矩关系曲线，具有较高的准确度和可靠性；2）节点抗弯承载力理论计算值与有限元值之间的误差基本保持在15%之内，仅有个别节点的误差较大，但是不超过40%。此外，理论公式对节点峰值承载力的预测结果优于屈服承载力；3）从破坏模式来看，47.1%的节点被完全准确预测，47.1%的节点被部分成功预测，仅有5.8%的节点预测错误。考虑到节点构造的复杂性及各组件分析模型简化等方面的影响，认为这种程度的承载力预测误差和破坏模式预测误差是可以接受的。
- T形方颈单边螺栓 /
- 方钢管柱 /
- 梁柱节点 /
- 抗弯承载力 /
- 有限元分析
Abstract: Based on the analysis models and calculation equations of bending bearing capacity of beam-column joints with T-head Square-neck One-side Bolts （TSOBs）， the expanded parameter analysis was carried out through the Finite Element （FE） numerical simulation method to fill the gap of parameters not considered in the experimental studies and verify the reliability and accuracy of the theoretical analysis models. The results showed that： 1） the three-dimensional FE model of the joints established in the paper could not only accurately predict the failure modes， stress state of each component and yield sequence of the joints under monotone loading， but also obtain the bending moment-rotation relation curves with high consistency with the test results； 2） the error between the theoretical calculation values and the FE values of the bending bearing capacity for the joints was basically within 15%， and only the error of some joints was larger， but not more than 40%. In addition， the peak bearing capacity predicted by the theoretical equation was better than the yield one； 3） for the failure modes， 47.1% of the joints were completely predicted accurately， 47.1% were partially predicted successfully， and only 5.8% of the joints were predicted incorrectly. Considering the complex structure of the joints and the simplification of the analysis models of each component，this degree of prediction error for bending bearing capacity and failure mode should be acceptable.
- T-head square-neck one-side bolt /
- square hollow steel column /
- beam-column joint /
- flexural capacity /
- finite element analysis

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参考文献(16)

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