Bridge Structural Resistance Verification Tool
This expert tool is intended either for road authorities in order to validate, or not, a request for the passage of an exceptional transport, or for transport operators in order to carry out a study at the request of a road authority. (The characteristics of the bridge must be obtained from the road authority)
While this tool is particularly well suited to French structures (taking into account the various construction regulations from 1927 to 1971 for bridge calculations), it can also be used for any simple structure in Europe, provided that their admissible resistant capacities are known (bending moment, shear force). Once the span has been entered, it will then be possible to use the calculation of the forces generated by the passage and to compare them.
Eurocode structures cannot be calculated with this tool (a dedicated calculator will be developed on this site); however, for Eurocode bridges, capacity reserves are generally very significant, and the calculation is often less critical than for a bridge built in 1940.
Principle of the Crossing Assessment
The tool makes it possible to verify whether a specific exceptional convoy can cross an engineering structure (bridge) by comparing the forces it generates with the resistance capacities defined by historical French regulations.
1. The “Worst-Case Scenario” Principle (Strength of Materials)
- The software simulates the passage of the convoy over the entire length of the bridge (calculation step of 5 cm).
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