Structural behaviour of RC beams with external flexural and flexural-shear strengthening by FRP sheets

被引：158
作者：
Dong, Jiangfeng [1 ,2 ]
Wang, Qingyuan [1 ]
Guan, Zhongwei [2 ]
机构：
[1] Sichuan Univ, Sch Architecture & Environm, Chengdu 610065, Peoples R China
[2] Univ Liverpool, Sch Engn, Liverpool L69 3GQ, Merseyside, England
来源：
COMPOSITES PART B-ENGINEERING | 2013年 / 44卷 / 01期
基金：
美国国家科学基金会;
关键词：
Carbon fibre; Glass fibre; Debonding; Strength; Flexural-shear strengthening; REINFORCED-CONCRETE BEAMS; ARTIFICIAL NEURAL-NETWORKS; CFRP SHEETS; DESIGN PROCEDURE; PERFORMANCE; STRIPS; COMPOSITES; POLYMERS; CAPACITY; STIRRUPS;
D O I：
10.1016/j.compositesb.2012.02.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents experimental research on reinforced concrete (RC) beams with external flexural and flexural-shear strengthening by fibre reinforced polymer (FRP) sheets consisting of carbon FRP (CFRP) and glass FRP (GFRP). The work carried out has examined both the flexural and flexural-shear strengthening capacities of retrofitted RC beams and has indicated how different strengthening arrangements of CFRP and GFRP sheets affect behaviour of the RC beams strengthened. Research output shows that the flexural-shear strengthening arrangement is much more effective than the flexural one in enhancing the stiffness, the ultimate strength and hardening behaviour of the RC beam. In addition theoretical calculations are developed to estimate the bending and shear capacities of the beams tested, which are compared with the corresponding experimental results. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：604 / 612
页数：9
相关论文
共 41 条
[1]   Shear ductility of reinforced lightweight concrete beams of normal strength and high strength concrete [J].
Ahmad, S.H. ;
Xie, Y. ;
Yu, T. .
Cement and Concrete Composites, 1995, 17 (02) :147-159
[2]   Coupled flexural-shear retrofitting of RC beams using CFRP straps [J].
Al-Amery, Riyadh ;
Al-Mahaidi, Riadh .
COMPOSITE STRUCTURES, 2006, 75 (1-4) :457-464
[3]   Increasing the flexural performance of RC beams strengthened with CFRP materials [J].
Anania, L ;
Badalà, A ;
Failla, G .
CONSTRUCTION AND BUILDING MATERIALS, 2005, 19 (01) :55-61
[4]  
[Anonymous], 2002, 4402R02 ACI COMM
[5]   Efficacy of CFRP-based techniques for the flexural and shear strengthening of concrete beams [J].
Barros, J. A. O. ;
Dias, S. J. E. ;
Lima, J. L. T. .
CEMENT & CONCRETE COMPOSITES, 2007, 29 (03) :203-217
[6]   Near surface mounted CFRP laminates for shear strengthening of concrete beams [J].
Barros, JAO ;
Dias, SJE .
CEMENT & CONCRETE COMPOSITES, 2006, 28 (03) :276-292
[7]   The problem of shear in RC beams strengthened with CFRP laminates [J].
Bencardino, F. ;
Spadea, G. ;
Swamy, R. N. .
CONSTRUCTION AND BUILDING MATERIALS, 2007, 21 (11) :1997-2006
[8]   Damaged RC beams repaired by bonding of CFRP laminates [J].
Benjeddou, Omrane ;
Ben Ouezdou, Mongi ;
Bedday, Aouicha .
CONSTRUCTION AND BUILDING MATERIALS, 2007, 21 (06) :1301-1310
[9]   Effect of transverse steel and shear span on the performance of RC beams strengthened in shear with CFRP [J].
Bousselham, A ;
Chaallal, O .
COMPOSITES PART B-ENGINEERING, 2006, 37 (01) :37-46
[10]   Fibrous reinforced concrete beams in flexure: Experimental investigation, analytical modelling and design considerations [J].
Campione, Giuseppe ;
Mangiavillano, Maria Letizia .
ENGINEERING STRUCTURES, 2008, 30 (11) :2970-2980
12345