Behavior and Analysis of RC T-Beams Partially Damaged in Shear and Repaired with CFRP Laminates

Al-Mahaidi, Riadh; Lee, Kah Ying; Taplin, Geoff R

doi:10.1061/40558(2001)29

Cited by 14 publications

(7 citation statements)

References 1 publication

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“…Furthermore, when comparing the FRP composite to steel materials, it was found to provide unique opportunities to develop the shapes and facilitate their use in construction [16]. Numerous studies [17][18][19][20][21][22][23] have been taken place to study the performance of using FRP composites as strengthening materials in concrete beams with openings and the results showed that FRP composites have increased significantly the collapse load. Fayyadh and Abdul Razak [24] presented the findings of an analytical and experimental investigation on the efficiency of Carbon Fiber Reinforced Polymer (CFRP) strips in the restoration of RC beams with varying levels of pre-repair damage severity.…”

Section: Introductionmentioning

confidence: 99%

Rehabilitation of Hybrid RC-I Beams with Openings Using CFRP Sheets

et al. 2022

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This research presents an experimental investigation of the rehabilitation efficiency of the damaged hybrid reinforced concrete beams with openings in the shear region. The study investigates the difference in retrofitting ability of hybrid beams compared to traditional beams and the effect of two openings compared with one opening equalized to two holes in the area. Five RC beams classified into two groups, A and B, were primarily tested to full-failure under two-point loads. The first group (A) contained beams with normal weight concrete. The second group (hybrid) included beams with lightweight concrete for web and bottom flange, whereas the top flange was made from normal concrete. Two types of openings were considered in this study, rectangular, with dimensions of 100×200 mm, and two square openings with a side dimension of 100 mm. A full wrapping configuration system for the shear region (failure zone) was adopted in this research. Based on the test results, the repaired beams managed to recover their load carrying capacity, stiffness, and structural performance in different degrees. The normal concrete beam regains its total capacity for all types of openings, while the hybrid beams gain 84% of their strength. The strength of hybrid concrete members compared with normal concrete is 81 and 88% for beams of one opening and two openings, respectively. Doi: 10.28991/CEJ-2022-08-01-012 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Rehabilitation of Hybrid RC-I Beams with Openings Using CFRP Sheets

et al. 2022

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“…Researchers [15][16][17][18][19][20][21][22][23][24][25][26][27] have investigated using numerical modeling the performance of shear deficient RC beams and beams strengthened with externally bonded FRP laminates. Among them, Chen et al [23] used FE to model the interface bond behavior between concrete and FRP laminate surfaces.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of strengthened RC beams in shear with aluminum plates

Abu-Obeidah

Hawileh

Abdalla

2015

Computers & Structures

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“…Khalifa and Nanni (2000) investigated the strength and ductility improvements in carbon fiber reinforced polymer (CFRP) retrofitted T-section RC beams. The studies conducted by Al-Mahaidi et al (2001), Zhang and Hsu (2005) are related to the static shear strength and ductility assessment of strengthening RC members with initial shear damages. The impact behavior of beams with dominant shear failure was target of Zineddin and Krauthammer (2007) experiments.…”

Section: Introductionmentioning

confidence: 99%

Effects of CFRP retrofit on impact response of shear-deficient scaled reinforced concrete beams

Shafei

Kabir

2015

Lat. Am. j. solids struct.

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An experimental procedure is carried out to investigate response features of semi-deep reinforced concrete (RC) beams with dominant static shear failure subjected to low-velocity impact dynamic load both in intact and retrofitted cases. Built specimens have scaled geometry and material properties preserving physical similarity with full-scale members and are strengthened using externally bonded carbon fiber reinforced polymer (CFRP) sheets. Conducted tests gather reliable and robust data revealing notable stiffness and strength recovery within skin attachment. Desired performance criterion is detected here as concrete flexural cracking along span only when brittle shear collapse is prevented. Peak absorbed impulse capacity is attained for unidirectional carbon fiber retrofit. Stiffness is recovered initially during first impacts and then starts degrading due to rupture of horizontal fibers in cross-ply retrofit, but provided stiffness is stable for unidirectional retrofit during all impacts.

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Behavior and Analysis of RC T-Beams Partially Damaged in Shear and Repaired with CFRP Laminates

Cited by 14 publications

References 1 publication

Rehabilitation of Hybrid RC-I Beams with Openings Using CFRP Sheets

Rehabilitation of Hybrid RC-I Beams with Openings Using CFRP Sheets

Finite element analysis of strengthened RC beams in shear with aluminum plates

Effects of CFRP retrofit on impact response of shear-deficient scaled reinforced concrete beams

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