ProLife:Prolonging life time of old steel and steel- concrete bridges
This project is based on three distinctive ideas which each have the potential of saving large money for the European community.
- Introduction of composite action or strengthening of existing shear connectors by post installed shear dowels. The new technology will be tested and new knowledge will be gained.
- Introduction of box action by horizontal trusses between the bottom flanges for I-girder bridges, transferring the very fatigue-sensitive I-girders into box girders. Innovative connection of the horizontal truss will be made using technically approved actions for enhancement of the bond/friction between painted surfaces.
- Effective methods of strengthening old truss bridges. The consulting engineers that participate in project will provide new input and create general guidelines for strengthening of old steel truss bridges.
Bridges are of vital importance to the European infrastructure. With thousands of older steel/composite bridges, there is a demand of rational methods to strengthen the older bridges to compensate not only for their age, but also for higher loads and new codes, of which perhaps the new fatigue rules in EC3-2 will be the hardest to meet.