Popis: |
It is a challenge to obtain cost effective operation and maintenance of large cable supported bridges. They do not fit into the O&M framework used for normal highway bridges. At the same time, they represent large investments and are bottlenecks in the infrastructure network. Today it has become common practice in design of new bridges also to focus on durability, access ways, and setting up a system for risk based inspection and focused maintenance. For existing bridges, clients strive towards a modern approach to O&M by retrofit of bridge elements, improved access ways and a specific approach to inspection and maintenance. At the same time, O&M "rules of the game" have changed with the last 5 years of digitalisation resulting in new opportunities for efficient O&M. A similar potential also exists in exploiting accumulated knowledge about exposure and degradation mechanisms and utilize a data driven approach to control bridge criticality. |