GRAITEC Inc. News

GRAITEC Inc. News






02/28/2008

New Olympic ski jump in Garmisch-Partenkirchen, Germany

The steel parts of the Olympic ski jump were constructed by Bitschnau GmbH from Austria, using GRAITEC Advance Steel software.

Since the beginning of the 1920s, Garmisch-Partenkirchen was one of the most important places for international ski jumping. In 1921, the ski jump was a well-known location for the traditional ski jumping scene.

The Jump was named "Big Olympic Ski Jump" at the 1936 Winter games.

Over the years, the jump was rebuilt several times because it had to accommodate the new requirements that were changed very often.

In 1950, the Olympic ski jump was rebuilt as a steel construction and, at this time, it was the first jump that was made out of steel. It became known as one of the most modern ski jumps of the world.

Due to strong abrasion, the old jump was taken down at the end of 2006 and a new one was created.
Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany

Bitschnau GmbH from Nenzing in Austria obtained the commission to create the steel construction. The commission included the realization with the workshop planning and the assembly of the jump. The work started in July 2007.
Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany

Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany

One of the main tasks, when creating the steel construction, was the modeling of curved beams and the creation of workshop drawings. Since these functions are some of the most important components of GRAITEC Advance Steel, the software was an appropriate and useful tool for this project.

A special characteristic of the supporting project is the profiles, which are created out of welded beams with constantly changing cross sections and which are 90% of the fundamental beams.

Due to the function of the "intelligent connections" in Advance Steel, the sections change themselves regardless of where the profiles are cut. Each profile can be cut at any place, but the geometry is never the same.

Additionally the profile libraries provided the construction engineers a wide range of profiles, which where necessary for the construction of the jump.

The construction engineers of Bitschnau GmbH were enthusiastic about GRAITEC Advance Steel, because the software supported them when designing the ski jump especially regarding all construction challenges. This is due to that Advance Steel increased productivity and, therefore, also the work of Bitschnau GmbH.

When the creation of the construction was done, the steel parts were prefabricated in the workshop of Bitschnau GmbH and finally assembled to a height of 35 meters by using screw and welding connections. The total weight of the steel construction is approximately 655 tons.

The construction of the Olympic jump was completed in December 2007 and inaugurated during a traditional ski competition in the 2007/2008 winter.

Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany

Graitec - New Olympic ski jump in Garmisch-Partenkirchen, Germany
About Bitschnau GmbH:

Bitschnau GmbH was founded in 1995 by Harald Bitschnau. In the beginning, he was the only employee working in the company. Today, Bitschnau GmbH has more than 70 employees. The company is a specialist in steel construction, processing of aluminum and high quality steel, bridge building and machining. Some of their references are helicopter bases in Vienna, flying roof construction at the border in Feldkirch, Austria, etc.
Additional information:

Customer: Markt Garmisch-Partenkirchen
Architects/engineers:
Structural design and Structural planning: Mayr | Ludescher | Partner Advisory Engineers, Munich, Germany
Design and planning of jurybuilding, technical equipment: Architects Sieber+Renn, Sonthofen, Germany
Design and planning of the Olympic jump, landing bridge and landscape architecture: terrain loenhart & mayr BDA Architects and Landscape Architects, Munich, Germany
Picture credits:

Pictures of the construction site: Planungsgemeinschaft Mayr | Ludescher | Partner Beratende Ingenieure, Munich, Germany
Pictures of the model and visualization: terrain loenhart & mayr BDA Architekten und Landschaftsarchitekten, Munich, Germany