Strengthening of Reinforced Concrete Beam-Column Joint using CFRP

Abstract

Beam-column joints in RC Buildings are crucial elements in structures, especially those located in locations of medium and high seismicity. During an earthquake, a complicated combination of shear and flexural stresses acts at the same time within the joint. Shear failure of beam-column joints is identified as one of the main causes of collapse of many moments resisting RC frames, particularly those old constructed buildings. Such frames were not seismic resistant due to not sufficient reinforcement details in the beam-column joint regions. The main objective of this research is to investigate the behavior of an exterior reinforced concrete (RC) beam-column joints, a review of an experimental work will be shown and a FE modelling using commercial software ABAQUS for exterior RC joints retrofitted with CFRP sheets are also discussed, parametric study includes the CFRP and compressive strength effect will be presented at the end of the study