A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prediction of IC debonding failure of precracked FRP strengthened RC beams using global energy balance
Reinforced concrete (RC) beams strengthened with fiber reinforced polymer (FRP) have been extensively investigated, but the failure load of precracked beams strengthened with FRP has not been fully studied yet. When structurally deficient RC beams are repaired or strengthened using FRP, flexural cracks due to service load usually appear on the beams. Strengthened beams with precracking have been rarely examined, and most existing methods for predicting premature failures ignore the precracking effect. This research proposes a method for predicting debonding failure induced by intermediate crack (IC) for FRP-strengthened beams with precracking. The method consists of a numerical study on structurally damaged RC beams retrofitted with FRP laminate in the tension side of the beam. The method also applies the global energy balance approach in combination with fracture mechanics criteria to predict failure load for complicated IC-induced failure. The simulated results are validated against published experimental data and show good correlation.
Prediction of IC debonding failure of precracked FRP strengthened RC beams using global energy balance
Reinforced concrete (RC) beams strengthened with fiber reinforced polymer (FRP) have been extensively investigated, but the failure load of precracked beams strengthened with FRP has not been fully studied yet. When structurally deficient RC beams are repaired or strengthened using FRP, flexural cracks due to service load usually appear on the beams. Strengthened beams with precracking have been rarely examined, and most existing methods for predicting premature failures ignore the precracking effect. This research proposes a method for predicting debonding failure induced by intermediate crack (IC) for FRP-strengthened beams with precracking. The method consists of a numerical study on structurally damaged RC beams retrofitted with FRP laminate in the tension side of the beam. The method also applies the global energy balance approach in combination with fracture mechanics criteria to predict failure load for complicated IC-induced failure. The simulated results are validated against published experimental data and show good correlation.
Prediction of IC debonding failure of precracked FRP strengthened RC beams using global energy balance
Hoque, Nusrat (author) / Shukri, Ahmad Azim / Jumaat, Mohd Zamin
2017
Article (Journal)
English
Predictions , Fiber reinforced plastics , Plastic damage , Global energy balance , Operating Procedures, Materials Treatment , Beams (structural) , Fracture toughness , Theoretical and Applied Mechanics , Computer simulation , Reinforced concrete , Fiber reinforced concretes , Fiber reinforced polymers , Structural damage , Materials Science, general , Failure , Building Materials , Precracked beam , Fracture energy , Debonding , Precracking , Delaminating , Structural Mechanics , Civil Engineering , Residual curvature , Engineering , Energy use , Fracture mechanics , Retrofitting
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