Techno Press


Steel and Composite Structures   Volume 12, Number 2, February 2012, pages 149-166
DOI: http://dx.doi.org/10.12989/scs.2012.12.2.149
 
Shear behaviour of RC T-beams strengthenedwith U-wrapped GFRP sheet
K.C.Panda, S. K. Bhattacharyya and S. V. Barai

 
Abstract     [Full Text]
    This paper presents an experimental investigation on the performance of 2.5 m long reinforced concrete (RC) T-beams strengthened in shear using epoxy bonded glass fibre fabric. Eighteen (18) full scale, simply supported RC T-beams are tested. Nine beams are used as control beam specimens with three different stirrups spacing without glass fibre reinforced polymer (GFRP) sheet and rest nine beams are strengthened in shear with one, two, and three layers of GFRP sheet in the form of U-jacket around the web of T-beams for each type of stirrup spacing. The objective of this study is to evaluate the effectiveness, the cracking pattern and modes of failure of the GFRP strengthened RC T-beams. The test result indicates that for RC T-beams strengthened in shear with U-jacketed GFRP sheets, increase the load carrying capacity by 10-46%.
 
Key Words
    reinforced concrete (RC); strengthening; glass fibre reinforced polymer (GFRP); shear strength; T-beams
 
Address
K.C.Panda : Department of Civil Engineering, ITER, SOA University, 756113, India
S. K. Bhattacharyya : CSIR-Central Building Research Institute, Roorkee, 247667, India
S. V. Barai : Department of Civil Engineering, IIT Kharagpur, 721302, India
 

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