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3. Recalculation of structures
In what follows, only the recalculation of road bridges is dealt with. In view of the obvious safety issues, both structural and operational, the recalculation of rail bridges can only be the responsibility of a specialized authority.
When a bridge shows signs of damage, it means that the reversibility stage of certain service limit states has been more or less largely exceeded. In the case of steel bridges, local fatigue damage means that the structure is inexorably moving towards an ultimate limit state that could put it out of service. As mentioned above, the aim of recalculation is to develop a model of the structure in question, to provide a reference state characterizing its probable behavior, and to define the principles of repair or reinforcement. This reference condition will facilitate any subsequent investigations. The recalculation should make it possible...
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Recalculation of structures
Recalculation of a bridge in pathological condition
Bibliography
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Standards and norms
- Actions on structures – Part 1-1: general actions – Weights by volume – Own weights – Building operating expenses. - NF EN 1991-1-1 Eurocode 1 : -
- Actions on structures – Part 2: Actions on bridges due to traffic (March 2004) and national application document (March 2008). - NF EN 1991-2 et NF EN 1991-2/NA Eurocode 1 : -
- Actions on structures – Part 1-5: general actions – Thermal Actions (March 2004)...
Regulations
Highway code.
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