摘要
为研究偏心率对碳纤维复合材料(Carbon Fiber Reinforced Polymer,CFRP)布加固钢管混凝土柱力学性能的影响规律,借助有限元软件ABAQUS对偏心率为0. 3%、0. 6%、0. 9%和1. 2%的构件分别进行数值模拟。结果表明:随着偏心率的增大,被动约束的紧箍力减小;偏心率对构件的荷载挠度曲线影响比较大,对于偏心率大的构件,其极限承载力较小;不同偏心率对于不同长细比的构件影响不同,长细比为28时,构件的承载力相应地整体降低。
In order to study the influence of eccentricity rate on the mechanical properties of CFRP reinforced concrete filled steel tubular column,the finite element software ABAQUS was used to simulate the components with eccentricity rate of 0. 3%,0. 6%,0. 9% and 1. 2% respectively. The results show that with the increase of eccentricity,the tightening force of passive restraint decreases. Eccentricity has great influence on the load deflection curve of components,and the ultimate bearing capacity of components with high eccentricity is small. Different eccentricity has different effects on components with different slenderness ratios. When slenderness ratio is 28,the bearing capacity of components decreases correspondingly.
作者
李文
谷长霖
梅宝瑞
LI Wen;GU Changlin;MEI Baorui(Northeast Petroleum University,Daqing,Heilongjiang 163318,China)
出处
《河北工程大学学报（自然科学版）》
CAS
2020年第1期7-11,共5页
Journal of Hebei University of Engineering:Natural Science Edition
基金
国家自然科学基金资助项目(51308028)。
关键词
CFRP布
力学性能
偏心率
长细比
极限承载力
CFRP cloth
mechanical properties
eccentricity
slenderness ratio
ultimate capacity
