PROJECT DATA

Sophisticated Bridge Construction

Project: Dultenaugrabenbrücke, Germany

Contractor (and Architects): Porr Germany GmbH

MEVA Systems: KLK, Mammut, Special Designs

 
 
1
2
3
4
5
6
7
 

Project

Bridge Construction: MEVA expertise in special formwork for infrastructure projects

MEVA Engineers are known for their creativity in combining standard formwork with specially designed forms to achieve economically and technically viable solutions. An example is the Rheinfelden bridge in south-western Germany with its tapered octagonal piers with varying inclinations and cross sections; projecting octagonal pierheads and abutments with a conical front at either end of the Bridge.

The Project
The A 98 single-lane motorway is being extended by a second pair of lanes. Work began in 2007 and required building a second bridge at Rheinfelden, parallel to the existing one and identical in design and construction. The eight-span continuous girder composite steel construction has a total span of 444 m and stands on piers up to 45 m high. The bridge is scheduled to be opened to traffic in the spring of 2010. Munich-based contractor Porr Deutschland GmbH won the German federal contract and requested the support of MEVA´s engineers in Munich and Haiterbach.

Foundations with Cross Sections in Different Size
The 7 piers stand up to 75 m apart on foundations whose cross sections vary depending to the pier height, the load and the substrate. The largest is 11 m x 13 m x 2.4 m (length, width and height). All foundations were formed using MEVA’s large format Mammut formwork system with the highest possible concrete load capacity of 100 kN/m2.

A Multi-Use and Custom-Tailored Solution for the Conical Piers
The piers (including pierheads) are 16 to 42 m high. The 8 sides of all piers taper towards the top – with different inclinations, some with a ratio of 1:70, some with 1:50. To achieve this efficiently and within a tight schedule, MEVA engineers developed two units of formwork inside wooden girders that could be adapted from pier to pier.

The girders on the outside remained in a plumb-vertical position. The tapered side was achieved with conical-shaped square timbers on to which the forming face was fixed. With the inclined facing locked into the plumb-vertical construction, there was no need to change the construction for the pouring cycles further up. As the cross sections tapered, the forming unit´s corner bracing was adjusted. This multi-use solution for all piers and cross sections saved much time and money. Another major benefit was that the solution required only one visible anchor in the middle. This enhanced the superb concrete finish achieved.
Climbing was done with the MEVA KLK 230 climbing formwork which proved its worth as an easy-to-assemble and operate solution.

The Custom-Tailored Solution for the Pierheads
The octagonal pierheads are approximately 5 m high and cantilever with differing inclinations. They were formed using Mammut base frames onto which a plywood case was attached to achieve the required conical shape. As with the piers, the base frames on the outside were plumb-vertical. 14 differently shaped conical plywood cases were pre-assembled, making up four forming units on the MEVA KLK 230. Its ample load capacity was sufficient even for pouring the projecting pierheads.

Abutments with a Conical Front Side
The piers (including pierheads) are 16 to 42 m high. The 8 sides of all piers taper towards the top – with different inclinations, some with a ratio of 1:70, some with 1:50. To achieve this efficiently and within a tight schedule, MEVA engineers developed two units of formwork inside wooden girders that could be adapted from pier to pier.

“We made the right choice“
MEVA Engineers are known for their creativity in combining standard formwork with specially designed forms to achieve economically and technically viable solutions. An example is the Rheinfelden bridge in south-western Germany with its tapered octagonal piers with varying inclinations and cross sections; projecting octagonal pierheads and abutments with a conical front at either end of the bridge.

 
  • MEVA Expertise & References

    MEVA Expertise & References

    Referencen for Projets in Commercial & Residential Construction, Architectural Construction, High-Rise Construction and Civil Engineering Construction

  • Reservoirs with a capacity of 4.5 billion gallons are being built to increase the drinking water reserve

    Reservoirs with a capacity of 4.5 billion gallons are being built to increase the drinking water reserve

    As Qatar’s population and economy keep growing and water demand is increasing, the Qatar General Electricity & Water Corporation (KAHRAMAA) has launched an ambitious water project to provide increased water storage capacities and extend the supply reserve of drinking water from two to seven days.

  • South Canal Bridge, Ontario: With no crane possible at busy Hwy 400, MevaLite handles the job with ease

    South Canal Bridge, Ontario: With no crane possible at busy Hwy 400, MevaLite handles the job with ease

    One of Ontario’s busiest transportation corridors, Highway 400, began a major expansion project through Kings Township in late 2016. This $79.3 million dollar (CAD) project includes the widening of the highway from three to six lanes in each direction for a two mile stretch and also entails safer on and off ramps, the expansion and realignment of culverts, and the replacement of two bridges − one of them the South Canal Bridge.

  • A Brand-New Theater for the Cincinnati Shakespeare Company

    A Brand-New Theater for the Cincinnati Shakespeare Company

    The new theater is called The Otto M. Budig Theater and located in Cincinnati’s Over-The-Rhine district. When completed, it will become the last section of the planned “Classical Arts Corridor” in Cincinnati, which also includes a Music Hall, School for Creative and Performing Arts, and a park.

All Plastic Facing alkus
MEVA Frame Profile
... more than just formwork
  •  Select language

    Select continent and country. Language selection optional.

  •  Contact
  •  Search

    Search on our website.

  •  Newsletter

    Subscribe to our monthly newsletter.