| Abstract |
The proposal aims at developing a comprehensive process to assess the actual reliability of existing post-tensioned concrete bridges, by the analysis of all the key aspects for the evaluation of the reliability (material properties, traffic load, testing and survey process) and their related uncertainties. Probabilistic models of them will be developed to proper calibrate the common safety format of partial factor methods to achieve specific reliability with a proper confidence level. Finally, a method for the evaluation of the residual life of post-tensioned bridges will be integrated considering the degradation processes typical of such structures. Moreover, the continuous flux of data from the monitoring system can be used to assess the traffic load actions and the time-dependent reliability, increasing also the knowledge about the bridge and consequently reducing the uncertainties related. Consequently, integrating the degradation models in the safety check it is possible to monitor the residual working life and define a fair decision-making process on the bridges. The entire process will be checked and tested on a set of case studies. |
| SAFOTEB database |
To access the SAFOTEB database, please click on this link. For other informations, please refer to: D’Amato M., Ranaldo A., Rosciano M., Zona A., Morici M., Gioiella L., Micozzi F., Poeta A., Quaglini V., Cattaneo S., Rossi D., Pettorruso C., Salvatore W., Natali A., Celati S., Ubertini F., Venanzi I., Giglioni V., Ierimonti L., Meoni A., Titton M., Pannuzzo P., Dall’Asta A. (2025). Development and statistical analysis of a materials strength database of existing Italian prestressed concrete bridges. Infrastructures. Submitted to the journal. |
