Axial Strength of Eccentrically Loaded FRP-Confined Short Concrete Columns

Polymers

卷:12

Cheng Jiang¹  Yu-Fei Wu¹ 

[1] School of Engineering, RMIT University, 376-392 Swanston St, Melbourne, VIC 3001, Australia;

关键词: FRP;    concrete;    confinement;    eccentric load;    axial strength;    column;   

DOI  :  10.3390/polym12061261

来源: DOAJ

【 摘 要 】

This paper presents an experimental program that includes 78 fiber reinforced polymer (FRP)-confined square concrete columns subjected to eccentric loading. The degradation of the axial strength of FRP-confined short concrete columns due to the load eccentricity is investigated in this work. A larger load eccentricity leads to a greater decrease in the axial strength. From the test results, it is found that FRP confinement can cause less strength degradation compared with that of unconfined concrete specimens. For FRP-confined square concrete specimens, the strength enhancement due to FRP confinement increases with increasing load eccentricity. However, the increasing load eccentricity decreases the confinement efficiency for FRP-confined circular concrete specimens. The relationship between the strength of eccentrically loaded FRP-confined square columns and their corner radii is evaluated.

【 授权许可】

Unknown