BEHAVIOUR OF REINFORCED CONCRETE BEAM-COLUMN JOINT UNDER EARTH-QUAKE (A-REVIEW)

Abstract

This review paper is based on the research work of different researchers regarding the behavior of beamcolumn joint in Reinforced Concrete (RC) structure. Because of its importance during earthquake, experiment conducted
by researchers on full-scale specimens of connection between beam and column by considering the effects of axial load,
confinement effect and the compression effects on joints during an earthquake. Conclusions drawn from experiments are;
the joint shear strength capacity will increase by increasing the axial load on the joint. Also, joint shear strength is more
in case of interior joint as compared to exterior joint but still there is not any relation between the increases of axial
force to the joint shear strength. Joint capacity increases greatly by providing lateral confinement ratio of up to 0.40%.
Compressive strength also helps to enhance the bond strength between concrete and steel and it mainly contributes to
increase the shear strength of the connection. The shear strength of the connection is about the square root of the
compressive strength of concrete.