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S. Fasching, S. Maier, J. Kollegger:
"Building box girder bridges using thin-walled pre-fabricated elements";
Talk: fib Symposium 2019 CONCRETE Innovations in Materials, Design and Structures 27-29 May 2019, Kraków, Poland, Krakau; 2019-05-27 - 2019-05-29; in: "Proceedings of the fib Symposium 2019 held in Kraków, Poland", (2019), ISBN: 978-2-940643-00-4; 1315 - 1322.

An application of the balanced lift method using thin-walled pre-fabricated concrete elements in a bridge project in Austria is shown in the introduction of the paper. For the erection of the bridge across the river Lafnitz, U-shaped bridge girders are produced from thin-walled pre-fabricated concrete elements, erected in a vertical position and lowered to the final horizontal position using the balanced lift method.
In order to use thin-walled pre-fabricated concrete elements for the erection of box girder bridges, a new construction method was recently proposed, where segments of a box girder are produced using such elements. These segments are then connected to each other with the aid of post-tensioning tendons forming a bridge girder, which is moved to its final position by for example incremental launching or the balanced lift method. Once placed in the final position, pumped in-situ concrete is added first to the flanges and then to the webs.
It will be shown in the paper, that this approach is advantageous for bridge construction methods, which show a large difference in bending moment distribution along the bridge girder during the individual construction stages and the final state. Due to this fact, the required amounts of concrete, reinforcement and post-tensioning tendons can be reduced, smaller erection equipment is needed, and more efficient bridge structures can be produced.

https://publik.tuwien.ac.at/files/publik_279861.pdf