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Structural Engineering and Mechanics Volume 64, Number 5, December10 2017 , pages 557-566 DOI: https://doi.org/10.12989/sem.2017.64.5.557 |
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Behavior of FRP strengthened RC brick in-filled frames subjected to cyclic loading |
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Balvir Singh, R. Siva Chidambaram, Shruti Sharma and Naveen Kwatra
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| Abstract | ||
| Fiber reinforced polymer (FRP) sheets are the most efficient structural materials in terms of strength to weight ratio and its application in strengthening and retrofitting of a structure or structural elements are inevitable. The performance enhancement of structural elements without increasing the cross sectional area and flexible nature are the major advantages of FRP in retrofitting/strengthening work. This research article presents a detailed study on the inelastic response of conventional and retrofitted Reinforced Concrete (RC) frames using Carbon Fibre Reinforced Polymers (CFRP) and Glass Fiber Reinforced Polymers (GFRP) subjected to quasi-static loading. The hysteretic behaviour, stiffness degradation, energy dissipation and damage index are the parameters employed to analyse the efficacy of FRP strengthening of brick in-filled RC frames. Repair and retrofitting of brick infilled RC frame shows an improved load carrying and damage tolerance capacity than control frame. | ||
| Key Words | ||
| retrofitting; vibration; brick infills; RC frame; frequency response function; damage index; GFRP; CFRP; vibration monitoring | ||
| Address | ||
| Balvir Singh : Department of Civil Engineering, Thapar University, Patiala, Punjab, India R. Siva Chidambaram : CSIR-Central Building Research Institute, Uttarakhand, Roorkee-247667, India Shruti Sharma : Department of Civil Engineering, Thapar University, Patiala, Punjab, India Naveen Kwatra : Department of Civil Engineering, Thapar University, Patiala, Punjab, India | ||