Effect of Near Surface and Externally Bonded Retrofitting on Exterior Beam-Column Joint
Akash S1, Jayasree S2
1S.Akashwas, PG Student, Department of Structural Engineering, Mar Baselios College of Engineering and Technology, Trivandrum (Kerala), India.
2S.Jayasreeis, Associate Professor, Department of Civil Engineering, Mar Baselios College of Engineering and Technology, Trivandrum (Kerala), India.
Manuscript received on 05 December 2018 | Revised Manuscript received on 19 December 2018 | Manuscript published on 30 December 2018 | PP: 70-75 | Volume-8 Issue-2C, December 2018 | Retrieval Number: 100.1/ijeat.ICID-217_EE_127
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: To prevent the loss due to structural damages that can be resulted from the seismic activity, it is important that the structural elements should be retrofitted as soon as possible. Beam-column joints are the most vulnerable part of a structure, as the forces from adjacent beams and columns are transferred through the joint. In this study, a method for retrofitting RCC exterior beam–column joints using externally bonded Glass Fiber Reinforced Polymer (GFRP) sheet and Near Surface Mounted (NSM) GFRP strips (at different orientations such as 30o , 45o and 60o ) is proposed. All specimens were tested under reverse cyclic loading. The performance of beam-column joints was evaluated with respect to strength, ductility, energy absorption and stiffness degradation. The results show that the NSM retrofitted specimens with orientation of 30o have significantly enhanced all the above properties.
Keywords: Beam-Column Joints, Near Surface Mounted Retrofitting, Reinforced Concrete.
Scope of the Article: Concrete Structures