Three-Dimensional Non-Linear Modelling Aspects of a Full-Scale Reinforced Concrete Banded-Joist Floor

摘要

This paper briefly described the modelling of a full-scale reinforced concrete building composed of joist-shallow beam floor system supported on columns. Concrete and rebars were modelled by three-dimensional and one-dimensional elements, respectively, to represent the actual non-prismatic geometry of the floor and account for connection eccentricity. Concrete damaged plasticity model was adopted and calibrated. The model and the experiment agree on the behaviour at macroscopic level in terms of deflections and cracking patterns all over the building members, which confirms the model validity. Both the model and the experimental findings indicate that the behaviour of one-way joist systems on wide shallow beams differs significantly from their intended behaviour, on which they have been designed.