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Stihl T.,Eiffel Deutschland Stahltechnologie GmbH | Chassard C.,Landesbetrieb fur Strassenbau | Feldmann M.,RWTH Aachen | Bild S.,Beratender Ingenieur
Stahlbau | Year: 2013

The 1951-built suspension bridge spanning the river Saar at Mettlach, Germany needed to be closed for vehicles more than 12 t because of defects in the cable structure and damage of the composite bridge deck. So that the preservation listed urban bridge will meet again the existing traffi c conditions, the bridge deck had to be replaced and lightened. Through the installation of a light steel roadway in SPS design it is possible to allow the traffi c over the bridge without restrictions again. The paper describes the advantages of the new technology built Sandwich Plate bridge deck compared to traditional construction methods. The decision to award the construction works and contents of the individual approval are presented. The procedure and features in the use of this technology not yet introduced in Germany are given. The realization concept proposed by the construction company is an innovative example of current development in steel construction. The concept is based on the 2010 roadway rehabilitation of the Dawson Bridge in Canadian Edmonton which won the Sustainability Award 2012 of CISC. For application in Mettlach additional development was required to meet the regulations of the DIN Fb 101 and 103 in accordance to the standards of fatigue. Source


Stihl T.,Eiffel Deutschland Stahltechnologie GmbH | Heiland U.,Eiffel Deutschland Stahltechnologie GmbH | Seidel M.,Eiffel Deutschland Stahltechnologie GmbH | Heinzel U.,Landesbetrieb fur Strassenbau
Stahlbau | Year: 2014

It was planned to finish the 2013/14 renovation of the suspension bridge Mettlach after the installation of lateral mounted pedestrian walkways, extended by a bicycle path and after the completion of painting works of the bridge deck. These works had to be executed while public traffic was still on the bridge, same as the first measure in 2013. While processing the renovation serious damages at the main beams were detected. This report describes the circumstances of the handling and the solutions that have been developed to solve the task of repair. All this had to be done just in time under the premise to maintain the traffic of the urban bridge without major impairments. © 2014 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source


The inspection and the maintenance of lock facilities and their technical equipment is a periodic task. Therefore, the whole construction or the section concerned has to be free from water. This is usually made by mobile closing elements (synonym: stop logs) that are assembled segmentally before and after the section to be dried, lock it and allows pumping out the water off the lock. To close off broad lock sections or gates it is neither statically nor structurally useful to work with a stop log construction. This is to find the customized solution. © 2014 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source


Schween T.,Ingenieurgemeinschaft Thor Schipper Schween | Schlarmann D.,Ingenieurgemeinschaft Thor Schipper Schween | Heiland U.,Eiffel Deutschland Stahltechnologie GmbH | Kiehn D.,Eiffel Deutschland Stahltechnologie GmbH
Bauingenieur | Year: 2012

Since 2009, the Mercedes-Benz Arena has been rebuilt from a multi purpose stadium into a pure football arena. Stands have been renewed and widened down to the pitch. Hence, the roof of the stands had to be extended between 6 m to 15 m to cover the new first rows. It should be noted, that the new cable stayed roof extension has been erected onto the inner ring of an itself suspended membrane roof system. The erection procedure and its structural analysis are reported below. Source


Menzel N.,Eiffel Deutschland Stahltechnologie GmbH | Rilling J.,Eiffel Deutschland Stahltechnologie GmbH | Rings R.,Eiffel Deutschland Stahltechnologie GmbH | Heiland U.,Eiffel Deutschland Stahltechnologie GmbH
Stahlbau | Year: 2012

In the vicinity of the city of Itzehoe the new construction of a prestressed concrete bridge, 1200 meters long, was finished in 1967. Due to the condition of this bridge the durability and operational life span was limited to the year 2009. As replacement for this construction a new composite bridge of the same length was built according to current design criteria. The new bridge consists of three single structures, the approach bridge north, the part crossing the river Stör and the approach bridge south. The decommissioning of the existing structure and its replacement will be effected in two phases. In the first phase the new bridge for the direction Heide was built parallel to the existing structure. In the second phase the demolition of the prestressed concrete bridge was carried out followed by the new building of the bridge for the direction Hamburg. For all the three construction jobs, the building of two composite bridges for the overpass the carriageway of the autobahn A23 on the site Itzehoe and the disassembly of a prestressed concrete building, different solutions have been realised, which represent or develop partially basic procedures. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source

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