内置T形钢骨-T形钢管混凝土柱轴压性能研究

周乐; 张利辉; 杨翔宇; 丁嘉

doi:10.3724/j.gyjzG25082601

内置T形钢骨-T形钢管混凝土柱轴压性能研究

doi: 10.3724/j.gyjzG25082601

周乐^1,2,
张利辉^1,2,
杨翔宇^1,2,
丁嘉^1,2

1. 沈阳大学建筑工程学院, 沈阳 110044;
2. 沈阳市工程结构安全评估与防控重点实验室, 沈阳 110044

基金项目:

国家自然科学基金项目（52478191）；沈阳市工程结构安全评估与防控重点实验室项目（S230184）。

详细信息

作者简介:
周乐，教授，博士生导师，主要从事钢结构、组合结构等方面研究。Email:zhoule0306@126.com

计量
- 文章访问数: 26
- HTML全文浏览量: 9
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2025-08-26
- 网络出版日期: 2026-08-31
- 刊出日期: 2026-07-20

Research on the Axial Compressive Performance of T-Shaped Concrete-Filled Steel Tubular Columns with Built-in T-Shaped Steel Profiles

1. School of Architecture and Engineering, Shenyang University, Shenyang 110044, China;
2. Shenyang City Key Laboratory of Engineering Structure Safety Assessment and Prevention and Control, Shenyang 110044, China

摘要

摘要: 为优化异形柱的轴向受压性能，提出一种内置T形钢骨-T形钢管混凝土组合柱。设计6个试件，结合轴压试验与有限元模拟，系统考察外钢管壁厚、内置复合钢骨及核心混凝土的协同作用，主要研究含骨率ρ和套箍系数θ对构件力学性能的影响。结果表明：含骨率ρ由35.95%增至58.87%时，极限承载力提升21.6%；套箍系数θ由66.81%增至104.90%时，承载力提高25.66%；试件呈局部屈曲主导的单轴对称外凸破坏，有限元模型准确模拟了破坏形态及荷载-位移三阶段特性；综合试验、模拟与理论结果进行相对误差分析，有限元模拟结果与试验值的平均相对误差为1.81%，改进理论计算方法的平均相对误差为5.61%，验证了有限元分析及理论计算方法的有效性。
- 内置T形钢骨 /
- 轴压性能 /
- 含骨率 /
- 套箍系数 /
- 有限元模拟
Abstract: In order to optimize the axial compressive performance of special-shaped columns， a novel concrete-filled steel tubular column with T-shaped steel profiles is proposed. In this study， six specimens were designed， and axial compression tests and finite element simulations were used to systematically investigate the synergistic effects of the outer steel tube wall thickness， the built-in composite steel profile， and the core concrete. The influence of the steel ratio （ρ） and the confinement coefficient （θ） on the mechanical properties of the components were mainly examined. The results indicated that when the steel ratio ρ increased from 35.95% to 58.87%， the ultimate bearing capacity increased by 21.6%； when the confinement coefficient θ increased from 66.81% to 104.90%， the bearing capacity increased by 25.66%. The specimens exhibited mono-symmetry outward-bulging failure mode， which was dominated by local buckling. The finite element model accurately simulated this failure mode and the three-stage characteristics of the load-displacement curve. Based on comprehensive experimental， simulation and theoretical results， a relative error analysis was conducted. The average relative error between finite element simulation results and measured values was 1.81%， whereas the average relative error of the improved theoretical calculation method was 5.61%， which verifies the effectiveness of finite element analysis and the improved theoretical calculation method.
- built-in T-shaped steel profile /
- axial compressive performance /
- steel ratio /
- confinement coefficient /
- finite element simulation

HTML全文

参考文献(18)

[1]	LIU J，SONG H，YANG Y. Research on mechanical behavior of L-shaped multi-cell concrete-filled steel tubular stub columns under axial compression[J]. Advances in Structural Engineering，2018，22（2）:427-443.
[2]	XU C，YANG Y，TANG X，et al. Experimental research on static behavior of stiffened T-shaped concrete-filled steel tubular stubs subjected to concentric axial loading[J]. International Journal of Steel Structures，2018，19（2）:591-602.
[3]	于峰，程安春，徐国士. PVC-CFRP管钢筋混凝土柱抗震性能非线性有限元分析[J].计算力学学报，2015，32（6）:781-788.
[4]	ZHOU L，ZHANG Z，LIU C，et al. Experimental and numerical investigation of axially loaded L-shaped box-T section columns[J]. Engineering Structures，2023，291:116412.
[5]	LIU W H，GUO Y L，TIAN Z H，et al. Sectional strength design of T-shaped irregularly concrete-filled steel tube columns under combined axial load and any directional moments[J]. Structures，2024，67:106982.
[6]	黄艳艳，温宇平.钢骨-方钢管混凝土组合异形短柱轴压性能的有限元分析[J].南昌航空大学学报（自然科学版），2020，34（2）:65-70.
[7]	LEI M，LI Y L，LI Y Q，et al. Behavior of concrete-filled T-shaped steel tubular beam-columns under biaxial compressive loads[J]. Engineering Structures，2023，277:115409.
[8]	张侃，郝玮，程卫红，等.基于通用有限元分析的内置双向钢骨混凝土组合墙抗震性能研究[J].建筑科学，2025，41（5）:114-125.
[9]	王秀丽，苏晓斌，侯鸿杰.冷弯薄壁型钢混凝土框架套筒式装配节点抗震性能[J].兰州理工大学学报，2025，51（2）:107-117.
[10]	曹正罡，张小冬，周威，等.斜交网格筒体超高层结构DK形混凝土节点试验研究[J].建筑结构，2018，48（12）:13-17.
[11]	中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152—2012[S] ，北京:中国建筑工业出版社，2012.
[12]	全国钢标准化技术委员会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2021 [S].北京:中国标准出版社，2021.
[13]	韩林海.钢管混凝土结构:理论与实践[M]. 2版.北京:科学出版社，2007.
[14]	Architectural Institute of Japan. Recommendations for design and construction of steel reinforced concrete structures:AIJ-SRC[S]. Tokyo:Architectural Institute of Japan，1997.
[15]	European Committee for Standardization. Design of composite steel and concrete structures:part 1.1:general rules and rules for buildings:ENV 1994-1-1[S]. Brussels:European Committee for Standardization，1994.
[16]	中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936—2014[S].北京:中国建筑工业出版社，2014.
[17]	American Concrete Institute. Building code requirements for structural concrete and commentary:ACI 318-19[S]. Farmington Hills，MI:American Concrete Institute，2019.
[18]	王清湘，朱美春，冯秀峰.型钢-方钢管自密实高强混凝土轴压短柱受力性能的试验研究[J].建筑结构学报，2005，26（4）:27-31.