Nonlinear finite element analysis of reinforced concrete beam-column joints under reversed cyclic loading

Abstract

This paper presents the application of three-dimensional nonlinear finite element analysis in studying the complex behaviour of reinforced concrete beam-column joints under reversed cyclic loading. Three different joint types were considered: an interior, an exterior, and a corner joint, each representing typical joint configurations in general moment resisting frame structures. These joints' test data were taken from the experimental investigations carried out by Shiohara and Kusuhara about 15 years ago and used here to showcase the practical application and value of an advanced numerical modelling. It is shown that the numerical models are able to accurately capture the full cyclic hysteretic response, progressive strength and stiffness degradation, cracking and damage evolution under load cycles, and failure mode. It is also shown that the numerical models provide a useful tool to characterise failure processes and behavioural mechanisms.