Höngesberg, DE

Object:
Timber arch bridge over the Agger
Client:
Stadt Lohmar
Construction:
Ingenieurbüro Miebach, Lohmar
Structural Calculation:
Schaffitzel Holzindustrie
Version:
Schaffitzel Holzindustrie
Year of construction:
2014

Video

Technical Data

Construction:
Re-anchored arch bridge made of spruce glulam. Two approach bridges to this bridge are made also of spruce glulam in form of timber-concrete composite constructions. The road is made with mastic asphalt. The arch bridge is laterally covered with larch. The upper side is covered with a titanium zinc sheet.
Dimensions:
65,00 x 3,50 m, spans 10,00 / 45,00 / 10,00 m
Our role:
structural analysis, construction work, project management, version

Special features

This timber arch bridge is one of the longest bridges of this type in Germany that supports heavy vehicle traffic. The design from this bridge is similar to the design of the other timber bridges upstream with no columns in the river. It is very unusual that the approach bridges are made of spruce gluam in form of timber-concrete composite. This construction creates a large shore area that ensures a rapid drainage in case of floods. As you can see in the video, a high degree of prefabrication allowed a very short construction period. The arch beams made of glulam fit in the natural environment and are at the same time a real eye-catcher.