摘要
本文阐述了近期对CFRP约束圆形钢管混凝土柱的偏压性能的试验研究成果。总共制作了6个试件,研究参数为偏心距,试件长径比均为5,钢管径厚比为100,每个参数制作2个相同试件。通过偏心加载试验获得试件荷载-变形曲线、荷载-挠度曲线等,并基于试验结果分析了CFRP约束钢管混凝土柱的偏心受压工作机理。最后,对Jiang和Teng提出的CFRP约束钢筋混凝土柱偏压柱子分析模型进行修改,利用数值模型计算出试件的荷载-挠度曲线,并将其与试验测得的数据进行对比,验证了该模型的合理性。
This paper presents the results of a recent study on the eccentric compression behaviour of carbon fiber reinforced polymer(CFRP)confined concrete filled steel tubular columns.A total of 6 specimens were prepared and tested in three pairs under different eccentricities.The length to diameter ratio of all specimens is 5.Thin steel tube with diameter to thickness ratio of 100 was adopted for all specimens.The load-strain curves,load-deflection curves were obtained from the tests.The Jiang and Teng(2012)eccentric compression column model for FRP confined reinforced concrete was modified to predict the columns of present study,the theoretical load-deflection curve of the specimens were calculated and compared with test results.
作者
李昆明
陈联盟
吴冬雁
赵俊亮
LI Kun-ming;CHEN Lian-meng;WU Dong-yan;ZHAO Jun-liang(College of Civil Engineering and Architecture,Wenzhou University,Wenzhou 325000,China)
出处
《复合材料科学与工程》
CAS
北大核心
2020年第12期38-42,共5页
Composites Science and Engineering
基金
国家自然科学基金资助项目(51608392)。
关键词
FRP约束钢管混凝土柱
偏压试验
力学性能
柱子模型
复合材料
FRP confined concrete filled steel tube
eccentric compression test
mechanical property
column model
composites
