CFRP条带加固圆端形铝管混凝土柱轴压力学性能

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中图分类号：TU375.3 文献标志码：A 文章编号：1005-8249（2026）02-0015-06

DOI：10.19860/j.cnki.issn1005-8249.2026.02.003

Axial Compressive Performance of Circular End Aluminum Tube Reinforced Concrete Columns with CFRP Strips

WEI Zhicheng'， ZHOU Shiwu'，HUANG Zining²，LIAO Pengcheng² （1. Guangxi Pearl River Commission Nanning Survey and Design Institute Co.，Ltd.，Nanning 530007，China; 2.Guangxi Huaxin Engineering Design Co.，Ltd.，Nanning 53O0oO，China；3. Guangxi Construction Group Third Construction Engineering Co.，Ltd.，Liuzhou 5450OO，China）

Abstract：Circular endaluminumaloytubeconcretecolumns havegooddurabilityand economy，but the strengthand elastic modulus ofaluminumalloyarelow，resultingininsuffcientrestraintonconcrete.Carbonfiberreinforced plastic（CFRP）was proposed to reinforce round end aluminum alloytube concrete columns，andits mechanical properties under axial compressive load werestudied.Atotalof 8specimens were tested，including7CFRPreinforced specimensand1control specimen.We studied the efectsof thewidth，spacing，and numberof layersofCFRP stripsontheaxialcompresion performanceof CREAC underthesameamountof CFRP.The testresultsindicatethatthespecimens mainly experienced bucklingof roundend aluminumaloytubes andfracture failureof CFRP strips；CFRPtapecan significantlyimprove theultimate bearing capacityof specimens，with a maximum increase of 15.3% within the test range；When the amount of CFRP is the same，as the number of CFRP strips decreases，both thebearing capacityand ductity willdecrease；Increasing the width andthickness of CFRP strips can significantly improve ductility.Research findings can provide references for related applications.

Key Words：round end aluminum tube concrete；CFRP reinforcement；axial compression test；mechanical propertie！

0 引言

圆端形钢管混凝土柱（CFRE）以其承载力高、施工方便、外形美观、截面布置灵活而被广泛使用[1]。（剩余8001字）