低周反复荷载作用下芯钢管连接的PVC-CFRP管混凝土柱-RC梁边节点应变分析

doi:10.19936/j.cnki.2096-8000.20250428.007

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (4): 57-67.DOI: 10.19936/j.cnki.2096-8000.20250428.007

低周反复荷载作用下芯钢管连接的PVC-CFRP管混凝土柱-RC梁边节点应变分析

于峰¹, 施坤^1*, 管玉聪^1,2, 方圆¹, 许波¹

1.安徽工业大学建筑工程学院,马鞍山 243002;
2.上海宝冶集团有限公司,上海 200941

收稿日期:2024-02-07 出版日期:2025-04-28 发布日期:2025-06-03
通讯作者: 施坤(1999—),男,硕士研究生,主要从事组合结构方面的研究,shikun2021@163.com。
作者简介:于峰(1980—),男,教授,主要研究新型组合结构、FRP在土木工程中的应用以及固体废弃物在土木工程中的应用。
基金资助:
国家自然科学基金(52078001);安徽省科技重大专项项目(202203a07020005);安徽省重点研发计划(2022i01020005);安徽省高校优秀科研创新团队(2023AH010017);安徽省高校协同创新项目(GXXT-2023-061,GXXT-2022-074);安徽理工大学芜湖技术创新研究院(2022jc04)

Study analysis of PVC-CFRP confined concrete column-RC beam exterior joints with core steel tube under low cyclic loading

YU Feng¹, SHI Kun^1*, GUAN Yucong^1,2, FANG Yuan¹, XU Bo¹

1. College of Civil Engineering, Anhui University of Technology, Ma’anshan 243002, China;
2. Shanghai Baoye Group Co., Ltd., Shanghai 200941, China

Received:2024-02-07 Online:2025-04-28 Published:2025-06-03

摘要/Abstract

摘要： 为分析芯钢管连接的PVC-CFRP管混凝土柱-RC梁边节点的应变发展规律,通过10个芯钢管边节点试件和1个普通边节点试件的低周反复试验,探析芯钢管含钢率、CFRP条带间距、节点环箍配箍率、轴压比和梁纵筋配筋率的影响。试验结果表明:试件在节点处发生剪切破坏。早期节点剪力主要由混凝土斜压杆承担,当试件达到峰值承载力时,节点斜向压力仍由混凝土承担,而斜向拉力由柱纵筋和节点环形箍筋共同承担,芯钢管直接参与抗剪。考虑芯钢管含钢率、节点环箍配箍率和轴压比的影响,引入边节点抗剪综合影响系数,建立边节点抗剪承载力的计算模型,公式计算结果与试验值吻合较好。

关键词: PVC-FRP管混凝土, 节点, 钢管混凝土, 破坏形态, 应变分析, 受剪机理, 复合材料

Abstract: In order to analyze the strain development law of the PVC-CFRP confined concrete column-RC beam exterior joints with core steel tube, through low cyclic tests of ten exterior joints with core steel tube(CST) and one typical joint. The effects of the steel ratio of the CST, stirrup ratio of the joint, axial compression ratio, longitudinal reinforcement ratio of the beam, and CFRP strips spacing were analyzed. The test results show that shear failure occurred at the joints, while no damage occurred at the PVC-CFRP confined concrete columns and beams. In the early stage, the shear force of the joint is mainly borne by the concrete; when the specimen bearing capacity reaches the peak bearing capacity, the diagonal pressure of the joint is still borne by the concrete, while the joint’s ring stirrups and the column’s longitudinal reinforcement jointly bear the diagonal tension. The CST can directly participate in the shear resistance. The calculating formula of the joint shear bearing capacity is proposed by considering the influence of the steel ratio of the CST, stirrup ratio of the joint, and axial compression ratio are considered, and introducing the comprehensive influence coefficient of joint shear resistance. The calculated results agree well with the experimental data.

Key words: PVC-FRP confined concrete, joint, concrete-filled steel tubular, failure mode, strain analysis, shear mechanism, composites

中图分类号:

TB332

于峰, 施坤, 管玉聪, 方圆, 许波. 低周反复荷载作用下芯钢管连接的PVC-CFRP管混凝土柱-RC梁边节点应变分析[J]. 复合材料科学与工程, 2025, 0(4): 57-67.

YU Feng, SHI Kun, GUAN Yucong, FANG Yuan, XU Bo. Study analysis of PVC-CFRP confined concrete column-RC beam exterior joints with core steel tube under low cyclic loading[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(4): 57-67.

参考文献

[1] GAO C, HUANG L, YAN L B, et al. Strength and ductility improvement of recycled aggregate concrete by polyester FRP-PVC tube confinement. Composites Part B: Engineering, 2019, 162: 178-197.
[2] 于峰. PVC-FRP管混凝土柱力学性能的试验研究与理论分析. 西安: 西安建筑科技大学, 2007.
[3] 于峰, 牛荻涛, 武萍. PVC-FRP管混凝土结构实际应用的可行性研究. 建筑科学, 2007(11): 102-104.
[4] JAKUBOWICZ I, YARAHMADI N, GEVERT T. Effects of accelerated and natural ageing on plasticized polyvinyl chloride (PVC). Polymer Degradation and Stability, 1999, 66(3): 415-421.
[5] GUPTA P K, VERMA V K. Study of concrete-filled unplasticized poly-vinyl chloride tubes in marine environment. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2016, 230(2): 229-240.
[6] 于峰, 牛荻涛. 轴压PVC-CFRP管钢筋混凝土柱应力-应变关系模型. 玻璃钢/复合材料, 2016(9): 12-16.
[7] 麻胜兰, 姜绍飞. CFRP-PVC 管混凝土轴压中长柱承载力研究. 土木工程学报, 2014, 47(1): 99-106.
[8] 于峰, 程安春, 黎德光, 等. 聚氯乙烯-纤维增强材料管钢筋混凝土短柱的偏压有限元分析. 工业建筑, 2015, 45(4): 83-87.
[9] 于峰, 黎德光, 牛荻涛, 等. 偏心受压PVC-FRP管钢筋混凝土柱承载力分析. 西安建筑科技大学学报(自然科学版), 2014, 46(5): 660-664, 670.
[10] YU F, XU G S, NIU D T, et al. Experimental study on PVC-CFRP confined concrete columns under low cyclic loading. Construction and Building Materials, 2018, 177: 287-302.
[11] 于峰, 徐国士, 程安春. 低周反复荷载作用下PVC-CFRP管钢筋混凝土柱受剪承载力分析. 建筑结构学报, 2016, 37(11): 106-112.
[12] YU F, FENG C C, FANG Y, et al. Experimental study on low-strength concrete joint core strengthened with steel meshes for connecting PFCC column and RC beam. Advances in Structural Engineering, 2021, 24(4): 797-814.
[13] YU F, WANG S, FANG Y, et al. Experimental study on bearing capacity of polyvinyl chloride carbon fiber-reinforced polymer-confined reinforced concrete column with ring beam joint under axial load. ACI Structural Journal, 2020, 117(5): 203-216.
[14] YU F, ZHANG N, NIU D, et al. Strain analysis of PVC-CFRP confined concrete column with ring beam joint under axial compression. Composite Structures, 2019, 224: 111012.
[15] YU F, SONG Z K, MANSOURI I, et al. Experimental study and finite element analysis of PVC-CFRP confined concrete column-ring beam joint subjected to eccentric compression. Construction and Building Materials, 2020, 254: 119081.
[16] WU P, LIU J, YU F, et al. Flexural stiffness analysis of the PVC-CFRP-confined concrete columns with RC ring beam joint under eccentric load. Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2022, 46(3): 1825-1840.
[17] SONG Z K, YU F, ZHANG N, et al. A model for predicting load-displacement hysteretic behavior of PVC-CFRP confined concrete column-ring beam interior joints under low cyclic loading. Composite Structures, 2021, 265: 113769.
[18] YU F, WANG J, WANG Y, et al. Flexural capacity of fiber-reinforced polymer-confined concrete column-ring beam exterior joints under low cyclic loading. Journal of Composites for Construction, 2022, 26(4): 04022041.
[19] YU F, GUAN Y, FANG Y, et al. Experimental and numerical investigations of PVC-FRP confined concrete column-RC beam joint reinforced with core steel tube under axial load. KSCE Journal of Civil Engineering, 2021, 25(12): 4671-4685.
[20] YU F, FENG C C, LI D, et al. Finite element analysis on weak PVC-FRP confined concrete column and strong joint strengthened with core CFST under axial compression. Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2022, 46(1): 101-115.
[21] TAN S Y, YU F,BAO H Y, et al. Experimental and numerical investigations on seismic behavior of RC beam to PVC-CFRP confined concrete column exterior joint with steel tube connector. Polymers, 2022, 14(21): 4712.
[22] YU F, ZHANG N N, FANG Y, et al. Stress-strain model of weak PVC-FRP confined concrete column and strong RC ring beam joint under eccentric compression. Steel and Composite Structures, 2020, 35(1): 13-27.
[23] 于峰, 李旭, 李东昂. 芯钢管增强的聚氯乙烯碳纤维复材管混凝土柱与混凝土梁连接节点的应力-应变关系. 工业建筑, 2021, 51(11): 178-185.
[24] 混凝土结构设计规范: GB 50010—2010. 北京: 中国建筑工业出版社, 2010.
[25] LIN Y J, LIU K Q, XIAO T X, et al. Shear bearing capacity of framework joints of steel-reinforced concrete-filled circular steel tube. Advances in Materials Science and Engineering, 2020. https://doi.org/10.1155/2020/7324865. DOI: 10.1155/2020/7324865.

低周反复荷载作用下芯钢管连接的PVC-CFRP管混凝土柱-RC梁边节点应变分析

Study analysis of PVC-CFRP confined concrete column-RC beam exterior joints with core steel tube under low cyclic loading

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