The subject of the project is the superstructure of the new Trimaran building in Prague, Pankrác. These are three trunk trusses placed on the middle tract as plain beams, at the overhanging ends of which a four-story reinforced concrete skeleton above the conference hall is hung on one side and, on the other, as a counterweight three-story administrative part of the building. The trusses have box bottom belts and columns. The diagonals and the top waist are made up of pairs, respectively. Triple preloaded Macalloy 520 construction drawers with a total of 257 units. The total weight of the trusses is about 704 tons, of which the OK is 582 tons, the Macalloy rods are 122 tons, the truss length is 44m, the height is about 8m.
As regards the quality, through detailed preparation to impeccable implementation, it was a very demanding original project from the very beginning. The active and unconditional cooperation of all stakeholders has made it possible to design and implement the assembly in a safe manner, to carry out countless measurements, confirming the theoretical prerequisites and managing the other challenging tasks that led to the successful execution of the work. The completed steel superstructure is now one of the dominant Pankrac plains. Nothing like this in the Czech Republic, and probably not even in the European space, has yet to be realized and all the participants have benefitted from this new and very valuable experience. Many theoretical procedures and technologies developed during past realizations of pre-stressed steel structures were used here, especially when assembling and preloading the Trojan Bridge.
Complex spatial shape of the steel structure. Short time for design, supply and installation of steel construction.
What made the project successful
The complete steel construction of the building was built and fitted in the required time. The resulting shape (geometry) of the design respects the requirements of the designers and the relevant standards.