ABSTRACT
This contribution is devoted to a prestressed concrete road bridge structure in Pforzheim, Germany, which has been in operation since 1953. Due to the limited accessibility of certain prestressed concrete members, a reliable assessment based on periodic visual inspections only is not ensured. Therefore, an in-depth full scale vibrational analysis was performed according to DIN 1076 (1999) in order to assess the structural integrity and maintenance condition of the superstructure. A follow-up assessment in 2020 is compared with a baseline investigation from 2003, having been conducted by the same organisations in a similar manner.
