Austria Obb Build Tender

As part of the electrification of the Gailtalbahn the entire infrastructure will be renewed and upgraded to the state of the art. This also means that the 124-year-old Gail Bridge at Arnoldstein will be replaced with a new one.Until 15.12.2019 BB-Infrastruktur AG is renewing the entire infrastructure of the Gailtalbahn. In addition to electrification the line from Arnoldstein to modern train stations and stops in the S-Bahn standard Park Ride facilities and much more. Another building is currently under construction the new Gail Bridge near Arnoldstein. BB is investing around EUR 60 million in infrastructural upgrading which started in the previous year and will be completed this year in December.It weighs 151 tons the old steel truss bridge over the Gail whose girders and gusset plates are still connected with forged rivets from 1895 says regional manager Siegfried Moser of BB-Infrastruktur AG about the architecture of bygone days. Due to the age of bridge construction and various technical needs we decided to replace the old structure with a new state-of-the-art technology. What sounds so simple is not reality. Moser Crucial for us is the hydrology of Carinthias second longest river the Gail which does not allow auxiliary structures in the riverbed.750 tons of crawler crane in operation at the end of AugustThe old bridge has a span of 61.60 m in length and has a width of 5 m. Neither for the overhead line nor for a necessary way is enough space. The new bridge is 50 meters long 7 meters wide and weighs around 235 tons. It should not only enable a modern railway operation but offers with the escort route optimal conditions for the maintenance work. To allow undisturbed drainage a very special method of construction was chosenOn an area of 110 x 23.5 m which was partly poured into the existing river bed and secured with stone sands from flood events the pre-assembly of the new bridge structure was carried out. A crawler crane is also being positioned here which will be able to remove the old structural structure in one piece at the end of August and lift the new one. Lifting capacity 750 tonsMoser Not only the use of the crawler crane is spectacular but also the construction and dismantling of the same. The individual crane components are delivered with a convoy of special transports. For the erection and dismantling of the crane alone another 110-ton truck crane is required. The immediate proximity of the construction site to the motorway exit proves to be especially favorable. Due to the tight time window only 3 weeks remain for the actual bridge exchange. Every work step every crane lifting process is meticulously planned. That means that every handgrip has to fit precisely muses Moser. A little detail on the sidelines While all preparatory measures and the production of bridge abutments are carried out by various construction companiesThis year BB is investing about 250 million euros in the renovation and new construction of infrastructure facilities in Carinthia making it one of the countrys largest investors. By 2023 around 1.67 billion will be flown to Carinthia on behalf of the Confederation in order to build modern rail infrastructures and to further improve existing ones.We build a modern and environmentally friendly railway for you.