SCIA User Contest 2017 Online Book

75 Category 2: Civil Structures 2 Owner ProRail Engineering Office Movares Nederland Construction Period 01/2016 - 12/2018 This project is based on three distinguishing ideas: composite action, strengthening and box action in I-girder bridges, each of which has a potential for saving a large sum of money for the European community. Furthermore, saving old bridges reduces both the environmental impact and traffic disturbance for trains and cars passing over the bridges. Within this project, we are examining the existing bridge over the river Waal. The existing bridge was modelled in SCIA Engineer and the results were compared with the measurements made in-situ with a real traffic. The FE-model was then calibrated to match the measurements. This was made by replacing the beams with plate elements and creating an area for the support. Moreover, the rail was modelled at the right height and was coupled with auxiliary beams using non-linear joints. Finally, the second bridge was added. More accurate evaluating of stresses in the structure using a refined model is very important for a detailed analysis when the strengthening of the existing structure is realised. With a simple FE-model some effects may be over- or underestimated, especially when stiffness of connections dictates the distribution of forces. Site measurements with a subsequent update of the finite element model are a good tool to make an accurate FE-model needed for strengthening of a bridge. ProLife Bridge over River Waal - Netherlands Movares Nederland Contact Arjen Steenbrink, Mark van der Burg Address Daalseplein 100 Postbus 2855 3500 GW Utrecht, Netherlands Website www.movares.nl Movares is an engineering consultancy providing solutions in the fields of mobility, infrastructure, building and spatial planning. Usability, future value and sustainability play a major role in the designs we produce. We contribute to accessibility through our unique combination of expertise. Infrastructure is the backbone of development, both for society and the economy. Movares plays an active role throughout the entire consulting and engineering process. Our combination of knowledge, expertise and innovativeness is summed up in our motto: ‘Giving shape to mobility’.