Orkla bridges (2016)

- Timber truss bridges in a parametric framework

  • The Orkla S-bridge. Illustration by NTNU/John Haddal Mork, Steinar Hillersøy Dyvik and Marcin Luczkowski.

     

     

  • The Orkla S-bridge. Illustration by NTNU/John Haddal Mork, Steinar Hillersøy Dyvik and Marcin Luczkowski.

     

     

  • The Orkla Arch-bridge. Illustration by NTNU/John Haddal Mork, Steinar Hillersøy Dyvik and Marcin Luczkowski.

     

     

The municipality of Orkanger wanted to transform an old local path into a town attraction. This involved rebuilding two small path bridges, using the parametric approach. Both bridges are universally designed, allowing maximum 1:20 rise to be wheelchair friendly, and are dimensioned for a 13-ton wheel loader.

The shape of the S-bridge is curved at the ends with a straight section between in the middle. It lies at a site with an existing bonfire hut and is surrounded by a dense broad-leaf forest. The small amphitheatre, that morphs from the bridge end facing the bonfire hut, adds architectural qualities to the surrounding site.  

The arch-bridge is built on a straight, artificial riverbank. Due to ice drift, the bridge had to be raised 0.7 meters above the riverbank, which resulted in the arched shape. As the path splits in two at one riverbank, benches facing the riverbank was integrated on this side.

Projects:

There are currently two PhD candidate and a research assistant working with timber truss bridges and parametric framework:

References:

Mork J.H., Luczkowski M., Dyvik S.H., Manum B., Rønnquist A. (2016) Generating timber truss bridges - examining the potential of an interdisciplinary parametric framework for architectural engineering,  accepted, IABSE Conference, Stockholm, 2016.

Contact

Professor Bendik Manum

Phone: +47 735 95 057

E-mail: bendik.manum@ntnu.no