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Structural Engineering and Mechanics
  Volume 54, Number 3, May10 2015 , pages 521-543
DOI: https://doi.org/10.12989/sem.2015.54.3.521
 


Structural repairing of damaged reinforced concrete beam- column assemblies with CFRPs
Ozgur Yurdakul and Ozgur Avsar

 
Abstract
    Depending on the damage type as well as the level of damage observed after the earthquake, certain measures should be taken for the damaged buildings. In this study, structural repairing of two different types of damaged RC beam-column assembly by carbon fiber-reinforced polymer sheets is investigated in detail as a member repairing technique. Two types of 1:1 scale test specimens, which represent the exterior RC beam-column connection taken from inflection points of the frame, are utilized. The first specimen is designed according to the current Turkish Earthquake Code, whereas the second one represents a deficient RC beam-column assembly. Both of the specimens were subjected to cyclic quasistatic loading in the laboratory and different levels of structural damage were observed. The first specimen displayed a ductile response with the damage concentrated in the beam. However, in the second specimen, the beam-column joint was severely damaged while the rest of the members did not attain their capacities. Depending on the damage type of the specimens, the damaged members were repaired by CFRP wrapping with different configurations. After testing the repaired specimens, it is found that former capacities of the damaged members were mostly recovered by the application of CFRPs on the damaged members.
 
Key Words
    CFRP; beam-column joint; reinforced concrete; structural repair
 
Address
Ozgur Yurdakul: Jan Perner Transport Faculty, University of Pardubice, Pardubice, 53009, Czech Republic
Ozgur Avsar: Department of Civil Engineering, Anadolu University, Eskişehir, 26555, Turkey
 

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