复合材料科学与工程Issue(3)：82-91,10.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
Experimental investigation on axial compressive performance of GFRP pipe-restrained reinforced concrete columns after freeze-thaw cycles
张云峰 1李炳君 1杜展祥 2滕振超 1王桐 1许耀祥1
作者信息
- 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
- 折叠
摘要
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 speci-mens 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 cal-culated results show a high degree of agreement with the experimental data.This study provides a valuable reference for related engineering designs.关键词
GFRP管/冻融循环/轴压性能/有限元分析/承载力计算Key words
GFRP tube/freeze-thaw cycles/axial compressive performance/finite element analysis/bearing capacity calculation分类
通用工业技术引用本文复制引用
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,(3):82-91,10.
