Research on changes in properties of steel from the old road bridge

摘要

This paper deals with problems stemming from the long service of steel bridges, in particular with the changes in the mechanical and strength properties of their steel over time. The considerations are of special relevance for bridges (including historic bridges) which have been in service for a long time, in the case of which it is vital to determine the actual operational strength of their main structural steel components. Operational load capacity reserves are evaluated as part of a technical condition assessment to determine the remaining service life.