Finite element modelling of a beam to column dowel connection calibrated on experimental data

Marius G.L. Moldovan, Mihai Nedelcu

Abstract

This paper investigates the failure mechanism of beam to column dowel connections for precast structures under lateral loads. Cantilever columns tied together with beams through steel dowels have been commonly used for many years, particularly in Europe. However, the structural behaviour and dissipative capabilities of these systems are not fully understood. To address these aspects large-scale experiments were conducted through monotonic loading by using a common beam-to-column dowel assembly. Additionally, the study aims to provide a comprehensive finite element analysis calibrated versus the experimental data. These calibrated models replicate the experimental results and provide additional information on the behaviour of the beam to column dowel connections. The results of this research demonstrate that these connections are a weak point that determines the premature failure of the assembly. The calibrated finite element models were able to reproduce the observed failure mechanism and provide in-depth information which was not possible to record during testing. The findings of this study suggest that design considerations and procedures for these connections should be improved.