复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (3): 10-20.DOI: 10.19936/j.cnki.2096-8000.20260328.002

• 基础与力学性能研究 • 上一篇    下一篇

GFRP-竹胶板管复合约束含砖骨料再生混凝土叠合柱抗压性能试验

赵卫锋1, 文嘉鑫2, 周靖3, 陈凯亮4, 补国斌2*   

  1. 1.广东建设职业技术学院,广州 510440;
    2.湖南工业大学 土木工程学院,株洲 412007;
    3.华南理工大学 亚热带建筑与城市科学全国重点实验室,广州 510640;
    4.中国轻工业长沙工程有限公司 化工材料食品事业部,长沙 410114
  • 收稿日期:2024-12-17 出版日期:2026-03-28 发布日期:2026-04-22
  • 通讯作者: 补国斌(1986—),男,博士,副教授,硕士生导师,研究方向为竹材复合结构,guobinbu@hut.edu.cn。
  • 作者简介:赵卫锋(1977—),女,博士,副教授,研究方向为竹材复合结构。
  • 基金资助:
    湖南省自然科学基金项目(2023JJ30213);湖南省教育厅科学研究优秀青年项目(23B0556);广东建设职业技术学院高层次人才项目(GCC2022-03);广东建设职业技术学院校级项目(KY2022-89)

Experiment on compressive behavior of GFRP-plybamboo panel tube dual confined recycled brick aggregate concrete laminated column

ZHAO Weifeng1, WEN Jiaxin2, ZHOU Jing3, CHEN Kailiang4, BU Guobin2*   

  1. 1. Guangdong Construction Polytechnic, Guangzhou 510440, China;
    2. College of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China;
    3. State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510640, China;
    4. Chemicals, Materials & Food Engineering Department, China CEC Engineering Corporation Co., Ltd., Changsha 410114, China
  • Received:2024-12-17 Online:2026-03-28 Published:2026-04-22

摘要: 为开拓废弃黏土砖再生利用的新途径,拓展竹胶板在结构工程领域的应用,本文提出一种玻璃纤维增强复合材料(Glass Fiber Reinforced Plastics,GFRP)管-竹胶板管复合约束含砖骨料再生混凝土生态叠合柱(简称GPR叠合柱)。通过对18根GPR叠合柱试件进行抗压破坏试验,研究再生混凝土(Recycled Brick Aggregate Concrete,RBAC)中砖骨料取代率、GFRP管壁厚、截面含竹率、拉杆间距比、荷载偏心距、长细比对试件抗压承载力和变形的影响。结果表明:GPR叠合柱试件的受压破坏形态主要为GFRP管纤维沿缠绕方向的破裂并出现局部断裂,外层RBAC压碎;GFRP管纤维破坏位置随GFRP管壁厚增大向柱端偏移;偏心受压时,GPR叠合柱破坏形态为受拉侧GFRP管纤维断裂;长细比大于32时,GPR叠合柱破坏形态为受压侧GFRP管纤维压溃断裂;试件抗压承载力随砖骨料取代率、拉杆间距比、荷载偏心距和长细比的增大而减小,随GFRP管壁厚的增大而增大,截面含竹率对试件的极限承载力无明显影响。依据试验结果构建了GPR叠合柱的极限抗压承载力计算模型,可为其工程应用提供参考。

关键词: 玻璃纤维增强复合材料, 竹胶板, 含砖骨料再生混凝土, 抗压试验, 极限承载力

Abstract: In order to explore new applications for the regeneration of waste clay bricks and to expand the use of bamboo plywood in structural engineering, this paper proposes a novel type of GFRP-plybamboo panel tube dual confined recycled brick aggregate concrete ecological laminated column (abbreviated as GPR laminated column). Compression failure tests were conducted on 18 GPR laminated column specimens to investigate the influence of brick aggregate replacement ratio in recycled brick aggregate concrete (RBAC), GFRP tube thickness, sectional bamboo content, spacing ratio of pull rods, load eccentricity, and slenderness ratio on the compressive bearing capacity and deformation of specimens. The test results indicate that the compressive failure mode of GPR laminated column specimens is mainly characterized by cracks and local fractures along the winding direction of GFRP tube fibers, as well as crushing of the outer RBAC. The location of GFRP fiber damage shifts upward with the increase of GFRP tube thickness. When subjected to eccentric loading, the failure mode of the GPR composite column involves tension-side GFRP fiber fracture, and slenderness ratio exceeding 32, compressive-side GFRP fiber fracture is observed. The compressive load-bearing capacity decreases with the increase of brick aggregate replacement rate, constrain tensile rod spacing ratio, load eccentricity, and slenderness ratio. Additionally, the load-bearing capacity decreases with an increase in GFRP tube thickness, while the section bamboo content has no significant effect on the ultimate load-bearing capacity of the specimens. Finally, a calculation model for the ultimate compression bearing capacity of GPR laminated columns was established based on experimental results, which is expected to provide reference for the engineering application of the GPR laminated columns.

Key words: GFRP, plybamboo panel (PBP), recycled brick aggregate concrete (RBAC), compressive test, ultimate load-bearing capacity

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