SCIA User Contest 2017 Online Book

74 Category 2: Civil Structures 2 Owner Prorail Engineering Office Movares Nederland Construction Period 2018 - 2020 For the project of Theemswegtracé, two new arch bridges had to be engineered. These bridges are both railway bridges for freight trains. These steel arch bridges have the span of 156 m and 176 m. On both bridges the track is placed in a curve. These bridges are, among other things, checked for strength, stability, fatigue and the combined response of structure and track to variable actions. This means a check of longitudinal stresses and displacements due to the temperature change, breaking and acceleration forces and vertical displacement of the bridge. For this calculation, a model of the entire bridge was made including the track and additional 300 metres of the track were added (including its substructure). The track is modelled at the real height above the bridge deck and coupled by auxiliary beams with non-linear joints. A non-linear joint is used to ensure that the track can slip from its sleeper when the force becomes too high. To get this model working we did several tests. With this we were able to get this model working the right way. We checked the construction for stresses in the track and displacements of the track and the bridge. Beside this, we also determined the force distribution over the substructure. Arch Bridges - Rotterdam, Netherlands Movares Nederland Contact Arjen Steenbrink, Sander van Alphen 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’.