ABSTRACT
The refurbishment and expansion of the Dybbølsbro Bridge in Copenhagen presents a unique engineering challenge. This contribution details the process of suspending a new 2000 m2 bridge between two existing bridges, all while maintaining traffic on the existing bridges, and executing work over twelve operational railway tracks. The innovative expansion uses a deck superstructure that requires no additional substructure. Achieved by strengthening and utilizing existing bridges, the new bridge consists of 55 independent steel elements. By reusing the existing bridges for the new superstructure and avoiding construction of a new substructure, we minimized the material consumption, consequently reducing the project’s environmental footprint and reduced the disturbance of the rail traffic, all contributing to a more sustainable project. The expansion of the bridge epitomizes the future of sustainable urban infrastructure, demonstrating that conscientious planning and innovative design can bring ambitious infrastructure projects to fruition, enhancing city landscapes and serving communities better.
