建筑钢结构进展2024，Vol.26Issue(4)：1-9,9.DOI:10.13969/j.cnki.cn31-1893.2024.04.001
CFRP-铝合金复合管高强混凝土短柱轴压性能研究
Axial Compressive Behavior of High-Strength Concrete-Filled CFRP-Aluminum Composite Tubular Stub Columns
摘要
Abstract
In order to investigate the axial compressive behavior of high-strength concrete-filled CFRP-aluminum composite tubular members,a set of axial compression tests on 12 stub column specimens were carried out,and the main parameter was the number of CFRP layers.The test results show the failure mode of the concrete-filled composite tubular specimens is several local buckling in the composite tube,accompanied by concrete crushing at the corresponding locations,while the hollow composite tubular specimens exhibit local concave buckling failure.The load-carrying capacity of specimens increases as the number of CFRP layer increases,and the increase amplitude for the concrete-filled composite tubes is higher than that of the corresponding hollow composite tubes.The contribution of each component to the load-carrying capacity is analyzed,and it is indicated that the contribution percentage of concrete is more than 70％,and the contribution proportion increases with the increase of CFRP layer number.A formula for calculating the load-carrying capacity of high-strength concrete-filled CFRP-aluminum composite tube is proposed.关键词
铝合金管混凝土/碳纤维增强塑料(CFRP)/CFRP-铝合金复合管/轴压性能/组合作用Key words
concrete-filled aluminum tube/carbon fiber reinforced polymer(CFRP)/CFRP-aluminum composite tube/axial compressive behavior/composite action分类
建筑与水利引用本文复制引用
王兰,姜航,谢文超,叶勇..CFRP-铝合金复合管高强混凝土短柱轴压性能研究[J].建筑钢结构进展,2024,26(4):1-9,9.基金项目
国家自然科学基金(52278182),福建省结构工程与防灾重点实验室(华侨大学)开放研究课题(SEDPFJ-2020-02) （52278182）
