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ISSN 2063-5346
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SEISMIC RETROFITTING OF BEAM COLUMN JOINTS USING CFRP NITOWRAP METHOD

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K. Ravichandran, A.K. Prsadkrishnan, S. Christian Johnson
» doi: 10.48047/ecb/2023.12.5.073

Abstract

Beams and columns are the important structural elements in any framed structure, and the joints that connect beams and columns have to be designed appropriately since they are the main component that transfers the internal forces. The failure of the entire structure has happened mainly due to the poor performance of the beam-column joints, which lie along the path of load transfer, and hence their design is considered crucial in any moment frames for external strengthening of the beam-column joints subjected to the cyclic loading conditions. The construction sector has a unique place for the use of FRP composites as an efficient alternative for reinforcing and repairing these parts. In the past, several repair and strengthening techniques have been created to strengthen existing structures and restore their strength and usefulness. In this study, there were six examples refitted using different techniques, two control specimens, and eight full-scale beam-column joints. In various configuration procedures, CFRP sheets were applied to the joints.

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