There are many different methods for erecting bridges—but the new technique developed by TU Wien, the balanced lowering method, is quite spectacular: the bridge is not built horizontally, as would normally be case, but erected in a vertical position and then rotated into the horizontal position. The first large scale tests were carried out in 2010; since then, the method has been refined and tuned until finally finding its first application by the ASFINAG for two bridges of the Fürstenfeld Motorway S7. With the erection process successfully completed for the Lahnbach Bridge, the 116 m long bridge over the Lafnitz was “unfolded” on the 27th of February 2020. With no scaffolding needed, this new bridge construction method not only saves time but also money and resources.
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