海南大学学报（自然科学版）2025，Vol.43Issue(6)：676-685,10.DOI:10.15886/j.cnki.hndk.2025030201
圆铝合金管约束混凝土短柱轴压试验
Axial compression test of concrete stub columms confined by circular aluminium alloy tube
摘要
Abstract
To solve the problem of poor corrosion resistance in steel tube confined concrete,a new structural form termed aluminum alloy tube confined concrete(AATCC)has been developed.This innovation uses aluminum alloy tubes,which are known for their excellent mechanical properties and superior corrosion resistance,to replace steel tubes for confining concrete.With concrete strength(33.3,48.7,and 66.8 MPa)as the influencing factor,three AATCC short columns with a slenderness ratio of 3 were designed and subjected to axial compression tests.The test results indicate that the failure modes of AATCC short columns exhibited shear failure characteristics,along with favorable deformation capacity and high load-bearing performance.The enhancement factor relative to the bearing capacity of plain concrete axial compression short columns increased with the confinement effect coefficient but decreased with higher concrete strength.Existing formulas for predicting the axial load bearing capacity of confined concrete were compared to evaluate their applicability to AATCC short columns.关键词
铝合金管约束混凝土短柱/轴压试验/承载力提高系数/承载力公式Key words
aluminum alloy tubular confined concrete short columns/axial compression test/strength enhancement index/bearing capacity models分类
建筑与水利引用本文复制引用
ZHAN Shiyu,ZENG Xiang..圆铝合金管约束混凝土短柱轴压试验[J].海南大学学报（自然科学版）,2025,43(6):676-685,10.基金项目
国家自然科学基金项目(52268024) （52268024）
海南省自然科学基金项目(521RC504) （521RC504）
