The bridge to the Paradis city train station in Bergen, Norway, is 42 meters long and one of the world’s longest composite truss bridges. This is a milestone in civil engineering, particularly for pedestrian and cyclist infrastructure.
CSUB, a Norwegian engineering, procurement, and construction (EPC) supplier of composite products and solutions, managed the construction alongside other contractors and engineering firms, like Fireco and Royal Haskoning, which collaborated with CSUB on sizing and calculation. The bridge, ordered by Vestland Fylkeskommune, spans a major intersection. It improves safety for non-motorized traffic by providing a dedicated crossing over both a busy road and the light rail line, ensuring a more secure and sustainable solution for travelers.
One of the project's highlights was the logistical challenge of transporting the enormous structure. Initially, the bridge was moved by sea from Dokken in Bergen harbor to Paradis, south of Bergen. The timing had to be chosen carefully so the transport could pass through a narrow section exactly when the tide was at its highest. The bridge was transferred onto road transport to complete the journey. Given its construction from fiber-reinforced polymers (FRP), a combination of carbon and glass fibers, the bridge benefits from a high strength-to-weight ratio. At just 47 tons, it offers significant advantages over traditional materials, including reduced maintenance and longer lifespan, all while contributing to environmental sustainability.
Diab has delivered 650 square meters of its Divinycell H80 structural core material for the project. It was selected for its lightweight yet durable properties, complementing the FRP structure. This material is known for its versatility in demanding environments, offering structural support and insulation. Using Divinycell H80 in the Paradis bridge ensures that it can withstand the harsh weather conditions of Norway with minimal need for future repairs or interventions, further enhancing the bridge’s sustainability credentials.
In conclusion, Diab’s contribution to this project highlights the importance of advanced composite materials in modern infrastructure. By using Divinycell H80 in the construction of the Paradis bridge, the project showcases how innovative materials can meet and exceed contemporary engineering demands, ensuring durability, safety, and environmental responsibility.
