Flexural Strength of Damaged RC Beams Repaired with Carbon Fiber-Reinforced Polymer (CFRP) Using Different Techniques
نویسندگان
چکیده
In this study, an experimental program was developed to investigate the flexural behavior of pre-damaged reinforced concrete (RC) beams that had been repaired and strengthened using carbon fiber-reinforced polymer (CFRP) laminates under a monotonic load. Two techniques were used: externally bonded reinforcement (EBR) near-surface-mounted (NSM) reinforcement, repair strengthen tested beams. The involved casting testing nine simply supported RC rectangular beams; one beam considered as reference did not undergo additional strengthening, remaining CFRP laminates. These eight divided into two main groups for purposes strengthening: which EBR technique used, NSM used. primary variables observed in included four damage percentages obtained according preload (20, 40, 60, 80%) from ultimate load carried by beam. results show decreasing percentage leads increase strength about 3.6% 17.2% 27.6% 57% technique; additionally, method more effective than terms mode failure. However, enhances flexure capacity
منابع مشابه
Assessment of effectiveness of CFRP repaired RC beams under different damage levels based on flexural stiffness
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ژورنال
عنوان ژورنال: Fibers
سال: 2023
ISSN: ['2079-6439']
DOI: https://doi.org/10.3390/fib11070061