Mechanical properties of T-stub connectors with one-side bolts
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本文提出一种带单边螺栓的T型连接件,能在箱型柱-H型钢梁节点之间形成可靠连接。本文设计了7个考虑螺母焊接与否、薄翼缘厚度及不同类型的T型螺栓等因素的模型,并采用校正的有限元法研究该连接件的力学性能和各因素的影响规律。结果表明:焊接螺母对连接件的极限承载力几乎无影响;增大薄翼缘厚度能提高连接件的极限承载力,建议选取翼缘厚度不小于5 mm;使用椭圆头单边螺栓(elliptical-head one-side bolt, EOB)和T头方颈单边螺栓(T-head square-neck one-side bolt, TSOB)能提高连接件的极限承载力,而T型槽用螺栓对连接件的极限承载力影响程度甚微,建议采用EOB和TSOB。
Abstract:In this paper, a T-stub connector with one-side bolts is proposed, which forms a reliable connection between box columns and H-section steel beam joints. Seven models considering factors such as nut welding condition, thin flange thickness and different types of one-side bolts are designed, and the mechanical properties of the connector and the influence of various factors are studied by using the calibrated finite element method. The results show that nut welding has little effect on the ultimate bearing capacity of the connector. Increasing the thin flange thickness can improve the ultimate bearing capacity of the connector. It is recommended that the flange thickness be not less than 5 mm. The use of elliptical-head one-side bolts (EOB) and T-head square-neck one-side bolts (TSOB) can improve the ultimate bearing capacity of the connector, while T-groove bolts have little effect on the ultimate bearing capacity of the connector. It is recommended to adopt EOB and TSOB in engineering practice.
[1] 林涛. 高强钢外伸端板连接梁柱节点抗震性能研究[D]. 广州: 华南理工大学, 2022.
[2] 钟瑾, 徐朋静, 赖晓斌, 等. 基于非对称SMA连接的自复位钢框架梁柱节点抗震性能研究[J]. 建筑科学, 2024, 40(9): 82-90.
[3] 聂诗东, 叶曦雨, 王辉, 等. 低屈强比高强钢箱形柱抗震性能试验研究[J]. 土木与环境工程学报(中英文), 2023, 45(6): 29-37.
[4] 王万祯, 王伟焘, 谢光杰. 隔板贯通式箱型柱-H型钢梁节点循环加载试验和破坏机理分析[J]. 工程力学, 2015, 32(4): 93-102.
[5] 孙文文, 王万祯, 童科挺, 等. 梁翼缘扩大头-圆孔削弱型内隔板式箱型柱-H型钢梁节点断裂分析[J]. 空间结构, 2015, 21(2): 79-84.
[6] 张小林, 刘辉. 箱型柱-H型钢梁的指形板加强型节点滞回性能研究[J]. 钢结构, 2018, 33(6): 39-43.
[7] 黄俊飞. T型钢连接梁柱半刚性节点承载力影响因素研究[J]. 四川建筑, 2020, 40(4): 175-176.
[8] 布欣, 谷倩, 王新武. 剖分T型钢梁柱连接框架中柱空间节点抗震试验研究[J]. 工程力学, 2017, 34 (8): 105-116.
[9] 郝际平, 曲凯, 薛强, 等. 单边螺栓发展现状与展望[J/OL]. 工程力学, 1-18[2024-11-17].
[10] Hu F X, Lin T, Wang Z. Hysteretic energy dissipation capacity of dual-steel welded-plate preloaded bolted T-stubs[J]. Thin-Walled Structures, 2023, 193: 111252.
[11] Wan C Q, Bai Y, Ding C T, et al. Mechanical performance of elliptical one-sided joints: loading direction and bolt row effects[J]. Journal of Constructional Steel Research, 2022, 197: 107461.
[12] Sun L L, Liu L, Wu J Y, et al. Tensile behaviour of T-stub to hollow section column using elliptical-head one-side bolts[J]. Journal of Constructional Steel Research, 2024, 213: 108438.
[13] 胡方鑫, 王湛. 高强钢T型件拉伸性能试验研究[C]//第30届全国结构工程学术会议论文集(第Ⅲ册), 2021:32-36.
[14] 梁刚, 郭宏超, 刘云贺, 等. Q690高强钢T-stub节点力学性能有限元分析[J]. 地震工程与工程振动, 2017, 37(6): 90-97.
基本信息:
DOI:10.13764/j.cnki.ncdg.20260903.001
中图分类号:TH131.3
引用信息:
[1]秦涛,曾思智,胡淑军.带单边螺栓的T型连接件力学性能[J].南昌大学学报(工科版)().DOI:10.13764/j.cnki.ncdg.20260903.001.
基金信息:
国家自然科学基金资助项目(52468025); 江西省主要学科学术和技术带头人培养项目(20232BCJ23065)
2026-09-03
2026-09-03
2026-09-03