GFRP-十字形钢骨混凝土柱轴压试验及力学性能研究

doi:10.19936/j.cnki.2096-8000.20250528.015

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (5): 117-124.DOI: 10.19936/j.cnki.2096-8000.20250528.015

GFRP-十字形钢骨混凝土柱轴压试验及力学性能研究

张云峰, 马锦辉^*, 张佳睿, 滕振超, 王桐, 梁晨光

东北石油大学土木建筑工程学院, 大庆 163318

收稿日期:2024-05-07 出版日期:2025-05-28 发布日期:2025-07-11
通讯作者: 马锦辉(1999—),男,硕士研究生,主要从事结构工程方面的研究,1963694324@qq.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。
基金资助:
黑龙江省自然科学联合引导基金项目(LH2020E018)

Research on axial compression test and mechanical properties of GFRP-cross-shaped steel-reinforced concrete columns

ZHANG Yunfeng, MA Jinhui^*, ZHANG Jiarui, TENG Zhenchao, WANG Tong, LIANG Chenguang

School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China

Received:2024-05-07 Online:2025-05-28 Published:2025-07-11

摘要/Abstract

摘要： 本文旨在研究纤维增强复合材料(GFRP)钢骨混凝土短柱在轴压作用下的力学性能。对6根采用不同组合形式的GFRP管钢骨混凝土短柱进行了轴压试验,并利用ABAQUS建立GFRP管约束十字形钢骨混凝土柱的力学模型进行参数分析,研究不同截面形式、钢骨腹板间距、长细比、纤维缠绕角度对构件的轴压力学性能的影响规律。试验结果表明:与传统十字形钢骨混凝土柱相比,有加劲肋的新型钢骨混凝土柱的极限承载力提升约6%;随着钢骨腹板间距的增加,组合柱的极限承载力得到显著提高;增加长细比组合柱的极限承载力和刚度也相应减小;与纤维缠绕角度为45°的构件相比,单层纤维缠绕角度为0°的构件的极限承载力增长39%,但构件的初始刚度几乎没受影响;同时,交替排布的纤维缠绕角度的极限承载力及刚度没有明显的变化规律。

关键词: GFRP管, 组合结构, 轴压性能, 有限元分析

Abstract: The purpose of this paper is to study the mechanical properties of fiber reinforced composite (GFRP) steel reinforced concrete short columns under axial compression. The axial compression tests of 6 GFRP tubular steel-reinforced concrete short columns with different combinations were carried out, and the mechanical model of GFRP tubular cross-shaped steel-reinforced concrete columns was established by ABAQUS for parameter analysis. The effects of different section forms, web spacing, slenderness ratio and fiber winding angle on the axial compressive properties of the member are studied. The test results show that the ultimate bearing capacity of the new steel reinforced concrete column with stiffening ribs is about 6% higher than that of the traditional steel reinforced concrete column. The ultimate bearing capacity of composite columns increases significantly with the increase of the spacing between steel webs. With the increase of slenderness ratio, the ultimate bearing capacity and stiffness of composite column decrease. The ultimate bearing capacity of the member with a single-layer fiber winding angle of 0° is 39% higher than that of the member with a fiber winding angle of 45°, but the initial stiffness of the member has little effect. At the same time, the ultimate bearing capacity and stiffness of alternately arranged fiber winding angle have no obvious change law.

Key words: GFRP pipe, combined structure, axial compression performance, finite element analysis

中图分类号:

TB332

张云峰, 马锦辉, 张佳睿, 滕振超, 王桐, 梁晨光. GFRP-十字形钢骨混凝土柱轴压试验及力学性能研究[J]. 复合材料科学与工程, 2025, 0(5): 117-124.

ZHANG Yunfeng, MA Jinhui, ZHANG Jiarui, TENG Zhenchao, WANG Tong, LIANG Chenguang. Research on axial compression test and mechanical properties of GFRP-cross-shaped steel-reinforced concrete columns[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(5): 117-124.

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GFRP-十字形钢骨混凝土柱轴压试验及力学性能研究

Research on axial compression test and mechanical properties of GFRP-cross-shaped steel-reinforced concrete columns

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