Structural Engineering

Buildings
For many years, AVIAPLAN has provided structural engineering for large and complex buildings and structures. With respect to new buildings our experience comprises almost everything, from offices, kindergartens, schools, universities, apartments, hospitals, laboratories, community centres, and exhibition buildings, to parking garages, sport arenas, industrial buildings and large bridges.
Bridges
A milestone in the company’s history was the design of the City Bridge of Stavanger, the first major cable-stayed bridge in Norway, opened in 1979. The design was made in co-operation with Prof. Dr. techn. Arne Selberg, internationally well known for his pioneering works on design and aerodynamics of suspension bridges.
We have also participated in the development and design of offshore platforms for the North Sea.
The beginning of the nineties introduced a prosperous period in bridge building in Norway. A second milestone in the company`s history took place with the opening of the Skarnsundet cable-stayed bridge in 1991. The main span of 530 m was the longest cable-stayed span in the world, and is still the longest for a span entirely in concrete. The bridge is very slender, with a horizontal slenderness ratio : Main span/Width of bridge deck = 40,8. The bridge has received several awards, among them the prestigious FIP Award of Outstanding Structures 1994.
Another remarkable project is the Bergsøysundet floating bridge, opened in 1992. The 845 m long tubular truss girder is supported by 7 separate pontoons. The bridge is horizontally curved. Wind and current forces are transmitted by arch action to the abutments, either side. At the opening it was the longest floating bridge in the world without anchorages to the sea bottom.
We have also performed the detail design and the construction engineering of the Uddevalla bridge in Sweden. The bridge has a total length of 1712 m of which the central cable-stayed part is 772 m. The bridge carries 4 lanes, and the main span over the navigation channel is 414 m.
We have also worked with multidiscipline railway and traffic projects involving co-operation with architects, transportation planning consultants and other specialized firms. Examples are the Granfoss-line project including road tunnels and the Gardermoen-Eidsvold railway line including the Eidsvold railway station. Restoration
Our multidisciplinary project approach is particularly appropriate when it comes to restoration of old buildings, most often in close cooperation with antiquarian authorities, specialised engineers, architects, economists, and environmentalists.
Services provided within this field include building physics, environmental impact assessment, structural restoration, plan of operations, and maintenance planning. We undertake a wide range of tasks, from small projects to large complex, multidisciplinary enterprises. We make our contributions at all stages of the projects; studies, preliminary design, detailed design, site and construction control, start-up procedures, and during the maintenance period.
Fire and fire protection
AVIAPLAN has a specialised group for fire protection technology. The group provides consulting services, planning and design. Our Clients are owners and architects, and the assignments vary from small consulting tasks to large design commissions.
Our experience covers office buildings, warehouses, industries, sport arenas and apartment buildings.