Seismic behaviour of reinforced concrete beam-column joints with vertical distributed reinforcement.

Abstract

This paper presents the experimental and finite element (FE)

investigations carried out on reinforced concrete (RC) beamcolumn

joints with vertically distributed longitudinal reinforcement

layers along its beam. Four full-scale interior beam-column joints

with varying reinforcement within the beam are subjected to a

constant column axial load and quasi-static horizontal cyclic load.

The experimental results highlight and discuss its joint behavior

such as hysteresis loops, cracking patterns, and failure mechanisms.

The FE numerical models are validated by comparing with the

experimental results obtained from tested specimens and

previous research. Parametric studies are performed to investigate

the complex behavior of the joints under the influence of axial

loads, vertically distributed reinforcement layers, and in the

amount of reinforcement provided.