Behaviour of Rcc Members Under Combined Torsion, Flexure and Shear
Behaviour Of Rcc Members Under Combined Torsion, Flexure And Shear For structural design and assessment of reinforced concrete members, non-linear finite element analysis has become an important tool. However, design and assessment of shear and torsion are still done with simplified analytical or empirical design methods.
Modelling methods used to simulate response due to bending and normal forces are well established and verified. The reliability of modelling methods used to simulate response due to shear and torsion, on the other hand, are more often questioned.
With this study it was shown how non-linear FE analysis can be used to study the influence of various design parameters on the shear response in prestressed concrete bridges, both in the service state and in the ultimate limit state. The influence on the shear response of a prestressed concrete box-girder bridge was investigated for the following design parameters: amount and inclination of web reinforcement, web thickness, and level of prestressing in the longitudinal direction. Non-linear FE analyses were used.