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Structural Engineering and Mechanics
  Volume 64, Number 5, December10 2017, pages 557-566
DOI: http://dx.doi.org/10.12989/sem.2017.64.5.557
 


Behavior of FRP strengthened RC brick in-filled frames subjected to cyclic loading
Balvir Singh, R. Siva Chidambaram, Shruti Sharma and Naveen Kwatra

 
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
 

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