On the impact of prior perception on bridge health diagnosis

C. Cappello; F. Bruschetta; D. Zonta; S. Maestranzi; R. Zandonini; M. Pozzi; B. Glisic; D. Inaudi; D. Posenato

doi:10.1201/b17063-94

On the impact of prior perception on bridge health diagnosis

C. Cappello, F. Bruschetta, D. Zonta, S. Maestranzi, R. Zandonini, M. Pozzi, B. Glisic, D. Inaudi, D. Posenato

Civil And Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

We illustrate an application of Bayesian logic to analysis of monitoring data and to inference of structural condition. The case study is a cable-stayed bridge, having a composite steel-concrete deck, supported by 12 cables. To monitor load redistribution, the owner installed a monitoring system that includes fiberoptic sensors. These sensors measure changes in deformation with respect to the value at installation. After one year of operation, which included maintenance on the interrogation unit, the data showed an apparent contraction of the cables. We discuss to what extent a rational agent is prone to accept the sensor response as the result of the real mechanical behavior of the bridge versus a mere malfunction of the interrogation unit. Using Bayesian logic as a tool to combine prior belief with sensor data, we highlight how the extent of prior knowledge can alter the final engineering perception of the current state of the bridge.

Original language	English
Title of host publication	Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
Pages	648-655
Number of pages	8
DOIs	https://doi.org/10.1201/b17063-94
Publication status	Published - 11 Jul 2014
Event	7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai, China Duration: 7 Jul 2014 → 11 Jul 2014

Conference

Conference	7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014
Country	China
City	Shanghai
Period	7/07/14 → 11/07/14

Keywords

bridge engineering
bridge health diagnosis

Access to Document

10.1201/b17063-94

Link to publication in Scopus

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Cappello, C., Bruschetta, F., Zonta, D., Maestranzi, S., Zandonini, R., Pozzi, M., Glisic, B., Inaudi, D., & Posenato, D. (2014). On the impact of prior perception on bridge health diagnosis. In Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014 (pp. 648-655) https://doi.org/10.1201/b17063-94

Cappello, C. ; Bruschetta, F. ; Zonta, D. ; Maestranzi, S. ; Zandonini, R. ; Pozzi, M. ; Glisic, B. ; Inaudi, D. ; Posenato, D. / On the impact of prior perception on bridge health diagnosis. Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. 2014. pp. 648-655

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Cappello, C, Bruschetta, F, Zonta, D, Maestranzi, S, Zandonini, R, Pozzi, M, Glisic, B, Inaudi, D & Posenato, D 2014, On the impact of prior perception on bridge health diagnosis. in Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. pp. 648-655, 7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014, Shanghai, China, 7/07/14. https://doi.org/10.1201/b17063-94

On the impact of prior perception on bridge health diagnosis. / Cappello, C.; Bruschetta, F.; Zonta, D.; Maestranzi, S.; Zandonini, R.; Pozzi, M.; Glisic, B.; Inaudi, D.; Posenato, D.

Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014. 2014. p. 648-655.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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