冻融循环后GFRP管约束钢筋混凝土柱轴压性能试验研究

doi:10.19936/j.cnki.2096-8000.20260328.010

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (3): 82-91.DOI: 10.19936/j.cnki.2096-8000.20260328.010

冻融循环后GFRP管约束钢筋混凝土柱轴压性能试验研究

张云峰¹, 李炳君^1*, 杜展祥², 滕振超¹, 王桐¹, 许耀祥¹

1.东北石油大学土木建筑工程学院,大庆 163318;
2.中冶武勘工程技术有限公司,武汉 430000

收稿日期:2025-01-16 出版日期:2026-03-28 发布日期:2026-04-22
通讯作者: 李炳君(2000—),女,硕士研究生,主要从事结构工程研究,13791099987@163.com。
作者简介:张云峰(1966—),男,博士,教授,主要研究方向为结构工程、防灾减灾及防护工程。

Experimental investigation on axial compressive performance of GFRP pipe-restrained reinforced concrete columns after freeze-thaw cycles

ZHANG Yunfeng¹, LI Bingjun^1*, DU Zhanxiang², TENG Zhenchao¹, WANG Tong¹, XU Yaoxiang¹

1. School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China;
2. Wsgri Engineering & Surveying Incorporation Limited, Wuhan 430000, China

Received:2025-01-16 Online:2026-03-28 Published:2026-04-22

摘要/Abstract

摘要： 为研究纤维缠绕玻璃纤维增强复合材料(Glass Fiber Reinforced Polymer,GFRP)管约束钢筋混凝土柱的轴压性能,对8根GFRP管约束钢筋混凝土圆柱进行了冻融循环后的轴压性能试验及有限元模拟分析,研究了混凝土强度、冻融循环次数、长细比对组合柱轴压性能的影响。结果表明:在相同冻融循环次数下,C60混凝土组合柱的极限承载力比C30混凝土组合柱的极限承载力平均高出9%;试件的承载力随着冻融次数的增加而降低,但相比于C30混凝土组合柱,C60混凝土组合柱的下降速率更为缓慢;随着冻融次数的增加,长细比对试件刚度和承载力的影响逐渐增大;建立了GFRP管约束钢筋混凝土柱的轴压承载力理论计算公式,结果与试验数据吻合程度较高,可为相关工程设计提供参考。

关键词: GFRP管, 冻融循环, 轴压性能, 有限元分析, 承载力计算

Abstract: To explore the axial compressive behavior of reinforced concrete columns confined by fiber-wrapped glass fiber reinforced polymer (GFRP) tubes, axial compressive tests and finite element simulations were conducted on eight GFRP-confined reinforced concrete cylinders subjected to freeze-thaw cycles. The effects of concrete strength, number of freeze-thaw cycles, and slenderness ratio on the axial compression performance of the composite columns were studied. The results indicate that, under the same number of freeze-thaw cycles, the ultimate bearing capacity of the C60 columns is on average 9% higher than that of the C30 columns. The bearing capacity of the specimens decreases with the increase in freeze-thaw cycles, but the degradation rate is slower for the C60 columns than for the C30 columns. Additionally, the influence of slenderness ratio on the stiffness and bearing capacity of the specimens becomes more significant as the number of freeze-thaw cycles increases. A theoretical formula for calculating the axial compressive bearing capacity of GFRP-confined reinforced concrete columns was established, and the calculated results show a high degree of agreement with the experimental data. This study provides a valuable reference for related engineering designs.

Key words: GFRP tube, freeze-thaw cycles, axial compressive performance, finite element analysis, bearing capacity calculation

中图分类号:

TB332

张云峰, 李炳君, 杜展祥, 滕振超, 王桐, 许耀祥. 冻融循环后GFRP管约束钢筋混凝土柱轴压性能试验研究[J]. 复合材料科学与工程, 2026, 0(3): 82-91.

ZHANG Yunfeng, LI Bingjun, DU Zhanxiang, TENG Zhenchao, WANG Tong, XU Yaoxiang. Experimental investigation on axial compressive performance of GFRP pipe-restrained reinforced concrete columns after freeze-thaw cycles[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(3): 82-91.

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冻融循环后GFRP管约束钢筋混凝土柱轴压性能试验研究

Experimental investigation on axial compressive performance of GFRP pipe-restrained reinforced concrete columns after freeze-thaw cycles

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