3D Finite element modelling of novel strengthening solutions for RC wall/slab connections

Magdalini Titirla (1) , Antoine Chalot (2) , Laurent Michel (2) , Emmanuel Ferrier (2)

1 LMSSC - Laboratoire de Mécanique des Structures et des Systèmes Couplés
2 LMC2 - Laboratoire des Matériaux Composites pour la Construction

The aim of this study is to create a nonlinear FE model able to predict the mechanical behavior of RC wall/slab connections strengthened by using Carbon Fiber Reinforced Polymers. The experimental mechanical behavior of 4 full scale RC wall/slab connections with a reference join and 3 strengthened by FRP are investigated from members of our researcher team. The 3D finite-element micromodel of the RC wall/slab connections is conducted utilizing the FE software ABAQUS, reproducing the actual geometry of the experiments, as well as the same boundary conditions and loading as in the experimental program. The analytical investigation is carried out through an extended comparative parametric study and is focused on the quantitative influence of certain simplified modelling assumptions and several critical modelling parameters on the response of the system. The accuracy of the 3D model was assessed against the experimental results.

Keywords: Composite; FRP; Finite element model; Joins RC structures

Domains: Mechanics [physics.med-ph]

Magdalini Titirla, Antoine Chalot, Laurent Michel, Emmanuel Ferrier. 3D Finite element modelling of novel strengthening solutions for RC wall/slab connections. Ingegneria sismica - International Journal of Earthquake Engineering, 2020, 3, pp.67-83. ⟨hal-03177084⟩