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A platform for research: civil engineering, architecture and urbanism
Robustness assessment of half-joint RC girder bridges
Considerable research efforts have been dedicated to understanding the resistance of buildings against progressive collapse. However, these efforts have been relatively limited in the context of bridges, despite the equal, if not more, critical importance of robustness criteria in bridge engineering. In the context of existing bridges, it is crucial not only to assess safety, but also to evaluate robustness using reliable metrics. These metrics can aid managing authorities in prioritizing necessary interventions. Considering this, the paper applies various robustness measures to a specific type of reinforced concrete (RC) girder bridge known as half-joint bridges. As a case study, the Annone viaduct is examined, which collapsed in 2016 due to the passage of a heavy truck. A notional removal approach of critical elements to quantify structural robustness is proposed. This approach considers several load configurations, some envisioned during the design stage, and others representing abnormal loads. The study results reveal specific scenarios that may lead to potential progressive collapse and highlight the preferred metrics for this type of bridges. Ultimately, the assessment of robustness can play a key role in choosing a retrofitting solution over other intervention options for existing bridges.
Robustness assessment of half-joint RC girder bridges
Considerable research efforts have been dedicated to understanding the resistance of buildings against progressive collapse. However, these efforts have been relatively limited in the context of bridges, despite the equal, if not more, critical importance of robustness criteria in bridge engineering. In the context of existing bridges, it is crucial not only to assess safety, but also to evaluate robustness using reliable metrics. These metrics can aid managing authorities in prioritizing necessary interventions. Considering this, the paper applies various robustness measures to a specific type of reinforced concrete (RC) girder bridge known as half-joint bridges. As a case study, the Annone viaduct is examined, which collapsed in 2016 due to the passage of a heavy truck. A notional removal approach of critical elements to quantify structural robustness is proposed. This approach considers several load configurations, some envisioned during the design stage, and others representing abnormal loads. The study results reveal specific scenarios that may lead to potential progressive collapse and highlight the preferred metrics for this type of bridges. Ultimately, the assessment of robustness can play a key role in choosing a retrofitting solution over other intervention options for existing bridges.
Robustness assessment of half-joint RC girder bridges
Martinelli, Paolo (author) / Colombo, Matteo (author) / di Prisco, Marco (author) / Martinelli, Paolo / Colombo, Matteo / di Prisco, Marco
2024-01-01
Article (Journal)
Electronic Resource
English
Robustness assessment of half-joint RC girder bridges
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