| Popis: |
In recent years to develop Industrialized Building System (IBS) panel system, many experimental researches have been tested out on beam to column connections, as it is the most vital part that influence the rigidity and strength of the precast concrete structures. In this paper, three precast beam to column connections types, namely; monolithic, endplate and corbel connections have been modelled using three dimensional (3D) finite element model software package ABAQUS. With the purpose to analyse the structural performance of the beam to column connections, all the models were statically loaded, and then investigated for the strength, deformation capacity and their stiffnesses and compared with existing experimental results. The concrete material is simulated using constitutive law of concrete damage plasticity in order to model the concrete stress strain behaviour. The comparison shows good accuracy based on the load displacement graph, moment-rotation behaviour and observed crack patterns. The failure mode identified for the beam to column connections are mainly joint shear failure for all types of connections. The availability of the 3D simulation proves a robust and reliable investigation on the nonlinearity behaviour of the connection. |
