Behavior of FRP strengthened reinforced concrete beams under torsion

被引：98

作者：

Ameli, Mehran ^{[1
]}

Ronagh, Hamid R.

Dux, Peter F.

机构：

[1] Univ Technol Sydney, Fac Engn, Ctr Built Infrastruct Res, Sydney, NSW 2007, Australia

[2] Univ Queensland, Sch Engn, Div Civil Engn, Brisbane, Qld 4072, Australia

来源：

JOURNAL OF COMPOSITES FOR CONSTRUCTION | 2007年 / 11卷 / 02期

关键词：

Beams; Concrete; reinforced; Fiber reinforced plastics; Nonlinear analysis; Numerical analysis; Numerical models; Torsion;

D O I：

10.1061/(ASCE)1090-0268(2007)11:2(192)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The use of fiber reinforced plastics (FRPs) for flexural and shear strengthening of reinforced concrete beams has been scrutinized to a considerable depth by researchers worldwide. The area of torsional strengthening however has not been as popular. This paper presents the results of an experimental investigation together with a numerical study on reinforced concrete beams subjected to torsion that are strengthened with FRP wraps in a variety of configurations. In the experimental study, the increase in the ultimate torque for different strengthening configurations, failure mechanisms, crack patterns, and ductility levels are monitored and presented. Experimental results show that FRP wraps can increase the ultimate torque of fully wrapped beams considerably in addition to enhancing the ductility. The experimental results upgrade the weak archival data on torsional strengthening by application of FRP. The numerical section reports on analyses performed by the ANSYS finite element program. Predictions are compared with experimental findings and are in reasonable agreement.

引用

页码：192 / 200

页数：9

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