Seismic vulnerability reduction: numerical modeling of frp reinforcement using multifiber beams elements

Cédric Desprez (1) , Saber El Arem (1) , Panagiotis Kotronis (2) , J. Mazars (1)

1 3S - Laboratoire Sols, Solides, Structures
2 GeM - Institut de Recherche en Génie Civil et Mécanique

This paper presents a simplified modeling strategy for reproducing the behavior of beamcolumn structures reinforced with Polymer Reinforced Fibers (FRP). A 1D concrete constitutive model has been recently proposed, suitable for both monotonic and cycling loadings [1]. The model is inspired on two well-known concrete laws, one based on damage mechanics theory (La Borderie concrete damage model) and one based on experimental studies (Eid & Paultre's confined concrete model). Spatial discretization is done using multifiber Timoshenko beam elements. Validation of the strategy is provided using two case studies: a retrofitted bridge pier and a vulnerability analysis on an existing building.

Mots clés: retrofitting; FRP; seismic loading; vulnerability; concrete; damage mechanics

Domaines: Mécanique [physics.med-ph]; Matériaux

Cédric Desprez, Saber El Arem, Panagiotis Kotronis, J. Mazars. Seismic vulnerability reduction: numerical modeling of frp reinforcement using multifiber beams elements. AGS'10, Euro Mediterranean Symposium On Advances in Geomaterial and Structures, May 2010, Djerba, Tunisia. pp.459-464. ⟨hal-01008876⟩