Elbe bridge Mühlberg

Elbe bridge Mühlberg
Convicted	L 66
Subjugated	Elbe
place	Muhlberg
construction	Composite steel bridge
overall length	690.5 m
Longest span	144 m
building-costs	14 million euros
start of building	2006
completion	2008
	location

51.438888888889 13.192222222222Coordinates: 51 ° 26 ′ 20 ″ N , 13 ° 11 ′ 32 ″ E

The Elbe bridge Mühlberg is a 690 m long road bridge that spans the Elbe and the Elbe foreland near Mühlberg . The structure connects Mühlberg via the state road 66 in Brandenburg with the federal road 182 in Saxony . It bridges the national border.

The bridge, which is curved in plan, is designed for two lanes as well as a walkway and bike path. The structure is equipped with four meter high walls on both sides, which are intended to prevent a collision between the motor vehicles and birds and bats.

history

Elbe bridge on December 22, 2008

First efforts to build a bridge over the Elbe to replace a yaw ferry in the 45 km long section of the river between Torgau and Riesa were made in the 1920s. For this purpose, a bridge building association was founded in Mühlberg, which existed from 1928 to 1935. In 1929 a bridge design was created that envisaged a 550 m long structure with a 100 m wide main opening.

A permanent river crossing was only realized around 80 years later, after an administrative agreement between the federal states of Brandenburg and Saxony on the planning, construction and maintenance of the Elbe bridge in Mühlberg was signed on January 20, 2004. The planning approval decisions followed on August 15, 2005 in Brandenburg and on August 14, 2005 in Saxony.

The construction work began in March 2006, and the handover to traffic followed on December 22, 2008. At the start of construction, the state of Brandenburg stated the cost of the bridge to be 14 million euros.

The Elbe Bridge in Mühlberg was awarded the undoped German Bridge Construction Prize in the road and railway bridges category in 2010 . In particular, the combination of innovative design idea and simple elegance, which also optimally meets ecological requirements, was honored.

construction

Main opening over the Elbe with a concrete joint

The 690.5 m long bridge construction has 12 fields. In the river area, the structure consists of a 420.5 m long section with a steel composite superstructure and four openings. In the eastern foreland there is a 270 m long segment with a prestressed concrete superstructure and eight fields. The two superstructures are monolithic, rigidly connected to one another. In the longitudinal direction, the continuous beam is the building system.

The steel composite superstructure has a trapezoidal single-cell box girder cross-section. The spans are 84.5 m in the western edge field, 144.0 m in the main field above the shipping channel and 120.0 m and 62.0 m in the following fields. The adjoining prestressed concrete bridge has a T-beam cross-section and connects with a span of 42.0 m. The following six fields span 35.0 m, the eastern end field has a span of 28.0 m.

The pillar on the right bank of the river is a striking construction element of the single-hip bridge. This is the fixed point of the structure in the longitudinal direction and consists of two V-shaped steel composite posts that are monolithically connected to the steel composite hollow box of the superstructure and form the shape of an "eye".

The posts of the pillar are supported at the bottom on concrete joints . These are carried out with high-strength, self-compacting concrete of strength class C55 / 67. Since the construction form with high-strength, self-compacting concrete is being used for the first time in Germany, extensive investigations were carried out on the feasibility of the concrete joints, including a 1 to 1 test specimen.