SIFCON strengthening of concrete cylinders in comparison with conventional GFRP confinement method

被引：14
作者：
Abdollahi, B. [2 ]
Bakhshi, M. [1 ]
Mirzaee, Z. [3 ]
Shekarchi, M. [2 ]
Motavalli, M. [4 ]
机构：
[1] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA
[2] Univ Tehran, Coll Civil Engn, Tehran, Iran
[3] Swiss Fed Inst Technol, Dept Struct Environm & Geomat Engn D BAUG, Zurich, Switzerland
[4] Empa, Swiss Fed Labs Mat Testing & Res, Struct Engn Res Lab, Dubendorf, Switzerland
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 36卷
关键词：
Composite; Concrete; Confinement; GFRP; SIFCON; Strengthening; STRESS-STRAIN MODEL; REINFORCED-CONCRETE; FIBER ORIENTATION; SEISMIC RETROFIT; AXIAL BEHAVIOR; COLUMNS; SIZE; COMPRESSION; PERFORMANCE; DUCTILITY;
D O I：
10.1016/j.conbuildmat.2012.06.021
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents SIFCON strengthening as a new method of confinement in comparison with GFRP confinement. The experimental part of the work is focused on the investigation of confinement in concrete specimens with unconfined strength ranging from 15 to 40 MPa, enclosed with GFRP sheets or SIFCON jacket. Several parameters such as number of layers and ply configuration for GFRP method and jacket strength, fiber length and jacket thickness for SIFCON method have been investigated. Furthermore, the ultimate strength models of FRP-confined concrete have been classified and evaluated with test results and the first step in modeling the ultimate strength of SIFCON-confined concrete has been taken. The results show that SIFCON confinement method can be regarded as a competitive method with respect to the well-known FRP confinement method and some of the available models of FRP confinement can also give good estimation of the ultimate strength of concrete confined by SIFCON method. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：765 / 778
页数：14
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