ANALYSIS OF RC-ECC BEAM COLUMN JOINT SUBJECTED TO CYCLIC LOADING

Abstract The impact of Engineered Cementitious Composite (ECC) on the performance of RC beam column joints under cyclic load has been examined in the current study. Using the programme Ansys 18.1 to model T-shape and plus (+) shape beam column joints, analysis was performed both with and without PVA (polyvinyl alcohol) fibres. PVA fibres were added at the junction of the beam column with percentage increases of 0%, 0.375%, 1.75%, 1.125%, and 1.5%. With these different PVA fibre addition percentages, the behaviour of the beam column was observed. The load deflection relationship, load bearing capability, stress-strain curves, and SN curve are among the primary factors taken into account. The analytical findings demonstrated a significant improvement in load carrying capacity and a decrease in deformation as the percentage of PVA was increased. The beam column joints with PVA fibres demonstrated incremental load resistance when compared to beam column joints without PVA, and an increase in stress was noted with the application of PVA in beam column joints. The analytical findings indicate that replacing PVA fibres in beam column joints by up to 1.5% can significantly improve structural behaviour.