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Contractors World 2012 Volume 3 Issue 2
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Section by section and unit by unit upwards: The bridge piers are formed and poured section by section and the shoring tower grows upwards as the pier grows.Germany

Bridge Building - Shoring Tower Saves Time

The A6 is one of Germany’s busiest motorways providing a route from the Greater Frankfurt area to Northern France and Paris. The motorway section near the town of Kaiserslautern was recently enlarged to 3 lanes in each direction to better handle the traffic.

Near Kaiserslautern, the motorway crosses the steep Waschmühl valley on a historical stone arch bridge that is 264 metres long and dates back to the 1930s. A new steel composite bridge resting on three pairs of piers was constructed on the northern side of the historical bridge. The six piers, all of them between 12 and 29 metres high and conical at the bottom, were made of reinforced concrete. The piers‘ cross sections at the bottom range from 1.70 m (all piers) to 1.35 up to 2.19 m. The top part of all piers is sized 1.70 m by 1.30 m.

The shoring tower is easy and fast to lift and relocate by crane. Assembling, relocating and disassembling the shoring tower as double as fast as with conventional climbing systems.      The abutments and pier foundations were formed using Meva’s Mammut wall formwork. Meva recommended using their shoring towers Space instead of conventional climbing systems to form the piers – and that is what the contractor did, saving much time and efforts when forming the piers.

The shoring tower is designed to effortlessly transfer the loads of the props that brace the formwork placed on it. Furthermore, the shoring tower is fast and easy to relocate – it can be crane-transported as a complete tower or in several units, depending on the height of the shoring tower and formwork.

Fast assembly, relocation and disassembly

The bridge piers were formed and poured section by section. As the piers grew upwards, the shoring towers were height-extended unit by unit to place the formwork and pour the concrete. No built-in components for formwork support were required in the concrete as the formwork was supported by props placed on the tower. Assembling, relocating and disassembling the shoring tower is approximately twice as fast as for conventional climbing systems.

“We saved much time and effort“

foreman Gatzke (right) for the contractor Alpine Deutschland”The Meva suggestion and solution was well thought out. Using Meva’s shoring tower Space instead of conventional climbing systems saved us much time and efforts. Meva technicians gave us a thorough support on the construction site and we are pleased with the pouring results“, says foreman Gatzke (right) for the contractor Alpine Deutschland responsible for the project.

Click here for more information >>> Meva Formwork

 

 

 

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Page updated: February 2012

 

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