Influence of the Location of CFRP Strips on the Behaviour of Partially Wrapped Square Reinforced Concrete Columns under Axial Compression

被引：25

作者：

Mai, Anh Duc ^{[1
]}

Sheikh, M. Neaz ^{[1
]}

Hadi, Muhammad N. S. ^{[1
]}

机构：

[1] Univ Wollongong, Sch Civil Min & Environm Engn, Wollongong, NSW 2522, Australia

来源：

STRUCTURES | 2018年 / 15卷

关键词：

Square columns; Carbon fibre; Partial wrapping; Wrapping schemes; Steel ties; Concentric load; POLYMER-CONFINED CONCRETE; RC COLUMNS; FRP CONFINEMENT; LOAD BEHAVIOR; FIBER; STRENGTH; PERFORMANCE; CYLINDERS; DUCTILITY; SHEETS;

D O I：

10.1016/j.istruc.2018.06.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigates the effect of the location of Carbon Fibre Reinforced Polymer (CFRP) strips on the performance of partially wrapped square reinforced concrete (RC) columns under axial compression. Three column specimens with 150mmx150mm cross-section and 800mm height were tested. One specimen was the reference RC specimen, one specimen was partially wrapped with CFRP strips without considering the location of the steel ties, and the other specimen was partially wrapped with CFRP strips located in between the steel ties. The experimental results showed that wrapping the square RC column specimens with CFRP strips enhanced the strength and ductility under axial compression. For the similar amount of CFRP strips, the specimen partially wrapped with CFRP strips located in between the existing steel ties showed higher strength and ductility than the specimen wrapped with CFRP strips without considering the location of the steel ties. In addition, post-peak axial load-axial deformation response changed from descending to ascending response when the CFRP strips were located in between the existing steel ties.

引用

页码：131 / 137

页数：7

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