Case Study of an Integral Timber-Concrete Road Bridge with special Construction of the Influences of Creep, Shrinkage and Emperature in the Pre-Dimensioning Phase

Abstract

As part of its sustainability offensive, the Austrian railroad company OEBB is planning to buildatimber concrete composite bridges asaserious alternative to steel composite bridges. For the bridges, the case study focused on the key static criteria for the design. This bridge isaroad bridge withaspan of approx. 42 meters. This bridge is to be realized as an integral bridge. The primary aim of this paper is to investigate whether influences from creep, shrinkage, swelling and temperature are already taken into account inapreliminary structural analysis or if it is sufficient to initially consider the permanent and traffic loads as decisive. To prove this, a static model was created and the internal forces of the different loads were compared.