The model presents an existing railroad bridge located on the Havel River in the city (district) of Berlin-Spandau, Germany. The river is crossed at this location by a total of seven railroad tracks. Three of them are part of the high-speed railroad between Berlin and Hannover, while the other four are part of other routes. The model of the bridge is just one of many models created for the project, which aims to create a BIM database useful in planning work for the maintenance of existing and construction of new railroads. The model was created based on existing drawing documentation. The result of the work is an IFC file containing the geometry of the bridge and various additional information relevant to the client. The presented model, together with others, form a BIM information base on the railroad line under development and its surroundings.
The total length of the bridge is 121 meters. The main superstructure consists of six three-span plate girders. The spans of each span are 25 m – 71 m – 25 m, respectively. The shape of the webs follows the distribution of internal forces in the elements, resulting in a slender, elongated structure. The individual girders are offset from each other along the longitudinal axis of the track, resulting in a parallelogram-shaped arrangement of the piers. The main girders have been connected in pairs by obliquely located transverse girders, thus forming three independent platforms (2 tracks + 2 tracks + 3 tracks). The steel structure rests via bearings on common foundations.
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