Background and activities
Dynamic modelling and analysis of long span cable-supported bridges with floating towers subjected to wind and wave loading
The Norwegian Public Roads Administration (NPRA) is running a project “Ferry free coastal route E39”, see here for more information. Some of the straits are up to 5 kilometers wide and 1.5 kilometers deep and will call for significant extension of present bridge technology. The installations have to resist extreme environmental loads and accidental actions with acceptable safety levels. Floating suspension bridge is one of the proposed solutions, a combination of offshore ocean engineering and bridge engineering. This new concept of bridge represents new challenges when it comes to prediction of the dynamic behavior. There is a complex interaction between the moorings and the floating towers and the towers and the bridge deck. Hydrodynamic and aerodynamic modelling is a crucial issue.
- develop a dynamic model of such bridges including fluid-structure interaction where hydroelastic, aeroelastic and nonlinear structural behavior are taken into account
- apply this model in uncertainty analysis and predict extreme values of the dynamic response when the structure is subjected to harsh environmental conditions
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
- (2017) Prediction of long-term extreme load effects due to wind for cable-supported bridges using time-domain simulations. Engineering structures. vol. 148.
Part of book/report
- (2017) Time Domain Modelling of Frequency Dependent Wind and Wave Forces on a Three-Span Suspension Bridge With Two Floating Pylons Using State Space Models. ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium.