Structural Engineering and Mechanics

  • 제47권1호
  • /
  • Pages.75-98
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  • 2013
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  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Shear strengthening effect by bonded GFRP strips and transverse steel on RC T-beams

  • Panda, K.C. (Department of Civil Engineering, ITER, SOA University) ;
  • Bhattacharyya, S.K. (CSIR-Central Building Research Institute) ;
  • Barai, S.V. (Department of Civil Engineering, IIT Kharagpur)
  • 투고 : 2012.11.18
  • 심사 : 2013.07.03
  • 발행 : 2013.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

This study focuses on shear strengthening performance of simply supported reinforced concrete (RC) T-beams bonded by glass fibre reinforced polymer (GFRP) strips in different configuration, orientations and transverse steel reinforcement in different spacing. Eighteen RC T-beams of 2.5 m span are tested. Nine beams are used as control beam. The stirrups are provided in three different spacing such as without stirrups and with stirrups at a spacing of 200 mm and 300 mm. Another nine beams are used as strengthened beams. GFRP strips are bonded in shear zone in U-shape and side shape with two types of orientation of the strip at $45^{\circ}$ and $90^{\circ}$ to the longitudinal axis of the beam for each type of stirrup spacing. The experimental result indicates that the beam strengthened with GFRP strips at $45^{\circ}$ orientation to the longitudinal axis of the beam are much more effective than $90^{\circ}$ orientation. Also as transverse steel increases, the effectiveness of the GFRP strips decreases.

키워드

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