145 Project information Short project description Nemetschek Engineering User Contest 2011 - Category 2: Civil Structures Category 2: Civil Structures 2 In increasing the number of tracks from 2 to 4 ones, a 523 m long historic viaduct for a railway has been extended. The existing structure consists of 16 three-hinged reinforced concrete arches of 32 m span, reaching a maximum height of 40 m and supported by hollow concrete piers. The widening structure consists of new steel viaducts supported on steel hollow ribs, which are fading gradually into the existing piers. The superstructure itself has the shape of a steel box with a variable hollow section, creating a waving pattern of the steel structure, complying with the existing arches, both in a horizontal plane as in the front view. Owner Infrabel Architect TUC RAIL General Contractor Iemants, Belgium Engineering Office TUC RAIL Construction Period From September 2009 to June 2011 Location Dilbeek, Belgium Extension of a Historic Multiple-Arch Concrete Viaduct Dilbeek, Belgium
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