Customer: DB Netz AG / DB Station & Service AG
Construction time: March 2008 - September 2010

Project description:
The new pedestrian and bike underpass with a length of 170 m goes under 25 railway tracks and was created using temporary bridges made of in-situ cast concrete. The barrier-free expansion of the suburban railway to the "Berg am Laim" stop was executed at the same time.
The underpass, which has a standard width of six metres and a height of three metres, has been widened to 10 m at the suburban railway platform. Skylights and architectural curves have been added in this area so as to provide more light.

Special features:
The north entrance was prefabricated with wings and was put in place during a track possession with the use of two temporary bridges. The entire structure was created using class 3 exposed concrete and using 25 operational temporary rail bridges.

 

 

 

Customer: Landratsamt Calw, Abteilung Straßenbau
Construction time: Planning: June - September 2007
Construction: September 2007 - August 2008

Project description:
To relieve the municipality of Rohrdorf, the K 4339 between Walddorf and the B 29 junction was rebuilt. The gradient cuts into the existing Nagoldtal Hang land and is routed through a green bridge. Because of its length of 180 m, this green range was built as a round tunnel structure built in an open cutting.
In addition to the green bridge, a building operation for laying the drainage pipes had to be drawn up and a corrugated steel culvert created.

 

 

 

Customer: City of Göppingen
Construction time: 15 months, 2004 - 2005

Special features of the construction project:
- Overall length of 317.5 metres
- 5,800 cubic metres of concrete
- 800 t of steel

Prestressed concrete bridge with a wide radius made construction in five sections. The bridge crosses the Faurndauer Strasse, the Fils and the Ulm - Stuttgart ICE main line.

 

 

 

Customer: Deutsche Bahn Netz AG, Karlsruhe
Construction time: March 2007 - September 2007

Project description:
Because of the southern bypass of the town of Nürtingen and growing traffic levels the section of the B 313 between Wörthbrücke and Enzenhardt were expanded with the rail overpass renewal. The abutment was created using the temporary bridges that were already available. The superstructures were produced next to the site as two single-cell pre-stressed concrete box girders and inserted into the abutment in two layers.

Special features:
Two box girder superstructures, each of which was put in place during a 36-hour shift.

 

 

 

Customer: Autobahndirektion Nordbayern, Nürnberg
Execution time:   October 2009 - October 2011

2 complete bridge structures, with a total of
- 12,000 cubic metres of concrete
- 1,200 t of reinforcing steel
- 165 t of prestressing steel

Both bridges were designed as four-span, continuous beam bridges.
The cross section is longitudinally pre-stressed and has unstressed reinforcement in the transverse direction. The overall length of each bridge is approximately 200 m. A cross-sectional double-webbed beam shape was chosen for the cross-section. The superstructures were produced as link joints, each in two sections. The demolition of the existing structure was also included in the service.

 

 

 

Customer: Magistrat der Stadt Mörfelden – Walldorf, Mörfelden-Walldorf
Construction time: February 2008 - February 2009

Specification:
As part of the expansion of the Mörfelden station to accommodate disabled people, a new underpass for pedestrians and cyclists was built. The following services were included in the contract:
- 450 square metres of sheet piling in the track area and the adjacent excavation area
- Construction of a new pedestrian underpass using the in-situ concrete method under the 3-track main
Frankfurt - Mannheim line (lateral insertion)
- Construction of the connecting frame structure in the station forecourt area
- Construction of disabled accesses (ramps), an lift shaft in the central
platform and associated staircase accesses
- Steel construction of ramp roofs staircase access routes
- The required track construction work, including temporary bridges during the project

Special features:
Creation of the underpass with full railway operations being maintained. Three temporary bridges with a span of 9.60 metres were built for this project.

 

 

 

Customer: Hochwasserzweckverband – Gemeinde Billigheim
Construction time: December 2004 - June 2005

Hydraulic structure of a controlled flood retention basin with sloping walls of up to 1.40 m thick, in the required facing concrete.

Special features of the construction project:
- Waterproof construction
- Floor plate with recessed stilling basin area
- Slope, 10 m high walls with tapered wall thickness extending to 1.40 m
- Exposed concrete requirement
- Stowage beam and installation parts with complex recesses and heightened tolerance requirements
- Superstructure with a span of 8 m

 

 

 

Customer: Fraport AG, Frankfurt
Construction time: September 2009 - May 2011

Project description:
The storm water retention basin being built on the airbase site of Fraport AG is used for the drainage of surface water from the apron. The building project is 100 m long and 60 m wide, the lowest point is at RHB E with a height of 10 m.
The storm water retention basin of the actual pool with a gradient of 1%, the water inlet operating room in the upper part, a water flow operating room in the lower part and an operational and ventilation passage.

- Concrete: 15,000 cubic metres
- Steel: 1,650 t
- Sheet piling: 317 m
- Excavation: 50,000 cubic metres

Special features:
- Underwater concrete 2,700 cubic metres
- Groundwater treatment plant
- Turnkey mechanical equipment, electrical and building services

 

 

 

Customer: Fraport AG, Frankfurt
Construction time: October 2009 - February 2011

Project description:
Storm water retention basin 6/7 is at Fraport AG Pier A West and
is used for surface drainage of the apron.
The construction project consists of 4 pool chambers with a length of 50 m, a width of 8 m and an average depth of 5.3 m, as it has a gradient of 1%.
An additional pumping station, a pre-chamber, a discharge chute and a stilling well shaft are also being constructed.

- Concrete: 7,200 cubic metres
- Steel: 1,170 t
- Excavation: 25,000 cubic metres
- Well shaft construction: 2,000 square metres

In addition to the new constructions, renovations to existing pool chambers 1 and 2 and to the old pumping station are also being carried out following completion of the construction.