| Resumo: |
Development of a modern procedure for the evaluation of the structural integrity of steel and composite steel-concrete bridges which may be affected by fatigue damage under the application of a large number of load cycles during their life-time.
Assessment of the actual fatigue load and resistance of principal elements and critical details for representative bridge typologies.
Evaluation of the actual fatigue loading spectra taking into account the real and expected traffic flows (also because of possible reclassification of railways lines) of the global dynamic train-bridge interaction effects and of the local dynamic vibration and distortional effects.
Evaluation of the actual fatigue resistance of the main elements / critical details subjected to distortion induced effects.
Setup of suitable strategies for the evaluation of vibration induced and distortion induced fatigue damaging in steel and composite steel-concrete railways, as well for the control of the crack growth. |