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Load Testing and Structural Monitoring of a Reinforced Concrete Mid-century Bridge

  • 2022
  • OriginalPaper
  • Chapter
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Abstract

The chapter focuses on the load testing and structural monitoring of a mid-century reinforced concrete bridge in Italy, using advanced diagnostic techniques to assess its current condition and performance. The bridge, built in the 1950s, has undergone extensive topographic and dynamic characterization, including ambient vibration tests and mechanical characterization through destructive and non-destructive field tests. The results highlight discrepancies between the designed and as-built geometrical and mechanical characteristics, with particular attention to concrete properties and carbonation depths. A traditional cable-based structural monitoring system was installed to record the bridge's response to various loads, revealing significant thermal effects and traffic-induced displacements. A static load test involving a heavy goods vehicle further validated the bridge's performance under imposed loads, with results closely matching numerical simulations. The chapter concludes by emphasizing the bridge's adequate performance despite its age and the importance of further investigating observed degradation phenomena.

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Title
Load Testing and Structural Monitoring of a Reinforced Concrete Mid-century Bridge
Authors
Giulio Zani
Agnese Scalbi
Katherina Flores Ferreira
Claudio Somaschini
Marco di Prisco
Copyright Year
2022
DOI
https://doi.org/10.1007/978-3-030-91877-4_40
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