e-mosty June 2017: Osman Gazi B. US Suspension. Hålogaland B. e-mosty June 2017: Suspension Bridges | Page 14

2.8 The Deck
The bridge deck of the main span is an 18.6m wide
steel box girder. Its shape is designed to minimize the
effects of wind load and eliminate vibration problems
due to vortex shedding.
The viaducts are supported directly on piers, the
bridge girder in the main span is carried by the
inclined hangers.
The total weight of the deck is kept to absolute
minimum – the bridge girder including non-structural
components such as roadway surfacing and crash
barriers is 9.3 tonnes/m, of which the structural steel
is 6.2 tonnes/m. The self-weight represents a large
part of the total design load.
Figure 14: Deck section - main span
Figure 13: Deck composition
Figure 15: Deck section - viaduct
2/2017