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K. Fuchs, J. Kollegger:
"New method for the production of deck slabs of steel-concrete-composite bridges";
Talk: fib congress 2018 - better, smarter, stronger, Melbourne; 2018-10-07 - 2018-10-11; in: "Proceedings for the 2018 fib congress", (2018), ISBN: 978-1-877040-14-6; 3606 - 3611.

A patent was granted recently to TU Wien for a new method for the erection of deck-slabs. The innovative feature of this new method consists in the combination of the advantages of in-situ construction using a formwork carriage and production methods with partial-depth elements. Precast elements for a section of the deck slab with a length of for example 25m are placed at an assembly area. Reinforcement is placed on top of the precast elements. Than a carriage, which can travel along the whole length of the bridge like in the case of a formwork carriage, is moved to the assembly area.
The precast elements are fixed to the carriage and then lifted by approximately 400 mm. In the next step the precast elements are transported to the location where they have to be placed and an in-situ concrete layer is added on top of the elements. When the in-situ concrete has gained enough strength,the precast elements, which serve as a lost formwork but also become a load carrying part of the deck
slab, are detached from the carriage. Then the carriage is moved to the assembly area to pick up the elements for the next section of the deck slab. The essential advantage of this innovative construction method for the production of slabs for bridges is the reduction of construction time and the production of a deck slab with the same quality like an in-situ concrete slab.

https://publik.tuwien.ac.at/files/publik_276838.pdf