Abstract

This paper deals with the influence of viscous bituminous wearing courses materials on orthotropic steel deck bridges. These researches are part of a French national project “Orthoplus”, which is briefly introduced. The approach to take into account the surfacing behavior and to develop calculation tools is explained. First the behavior of the different bituminous constituent materials is investigated. A linear viscoelastic modeling is proposed with a rheological model, previously developed at the Civil Engineering and Buildings Department (“DGCB”) of University of Lyon / ENTPE. This model is implemented in a Finite Elements software, which enables simulation of any transportation structures considering viscous behavior of bituminous materials.

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