ABSTRACT
Numerical simulation of existing railway bridge, which was strengthened after 50 years of service is demonstrated. The investigation was a part of the European project Sustainable Bridges where a bridge in Örnsköldsvik in northern Sweden was tested to demonstrate the new assessment methods developed during the project (Elfgren et al. 2006, Figure 1). The bridge was planned to be demolished in 2006 and it was possible to utilize it for an investigation of its remaining ultimate load carrying capacity after a service period of 50 years and strengthening.
