Numerical Verification of Strut and Tie Models and Failure Modes of Reinforced Self-Compacting Concrete Deep Beams
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Trans Tech Publications Ltd, Switzerland
Abstract
This study utilized Finite Element Method (FEM) to analyse the structural behaviour and
failure modes of Reinforced Self Compacting Concrete (RSCC) deep beams. Eighteen deep beam
specimens subjected to four-point loadings were modelled and analyzed using Abaqus modelling
tool. Damage plasticity model was used to characterised the nonlinear behaviour of concrete material
while linear elastic, linear-plastic-hardening model represented the reinforcing steel material
behaviour. The results of the finite model were compared with four different Strut and Tie Models
(STMs) using one-way Analysis of Variance (ANOVA). Results of the numerical study revealed that
the concrete strength and shear span to depth ratio mostly affect the load-deflection response of the
beams. Also, the failure modes of the studied deep beams were influenced by shear span to depth
ratio, concrete strength as well as web reinforcement distribution. The ANOVA results also showed
that the FEM outperformed the existing STMs