A Decision Support System for Scour Management of Road and Railway Bridges Based on Bayesian Networks

Maroni, Andrea; Tubaldi, Enrico; Val, Dimitri V.; McDonald, Hazel; Lothian, Stewart; Riches, Oliver; Zonta, Daniele

doi:10.12783/shm2019/32380

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The introduction of probabilistic methods may be an important consideration because it is a good way to cover the uncertainty of the actual development and maintenance of the structure in the decision-making scheme, as such uncertainty cannot be completely eliminated [134]. Also, the probabilistic approach allows the obtained information to be scalable, so that the limited SHM information can be utilized well, leading to the monitoring of cost reduction [140]. In addition, event trees may be a commonly used decision-making tool [134,141].…”

Section: The Design Of Decision-making Support Frameworkmentioning

confidence: 99%

Literature Review on the Structural Health Monitoring (SHM) of Sustainable Civil Infrastructure: An Analysis of Influencing Factors in the Implementation

Wang,

2024

Buildings

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Structural health monitoring (SHM) of civil infrastructure is significant for sustainable development. This review aims to identify the factors influencing sustainable civil infrastructure SHM implementation and analyze the properties, paths, and conditions under which they have an impact. The method adopted is a coding study based on Grounded Theory. First, the SHM implementation process in the literature is categorized through open coding to obtain an implementation framework that contains phase and activity levels. Second, based on this framework, a synthesis is conducted to categorize the influencing factors in dimensions of contents and properties through open coding and axial coding. Finally, selective coding is used to extract the factors that interacted across activities to propose a scheme of influencing factor relationships. The main findings of the synthesis are shown as follows: (1) sensor work scheduling and data transmission are promising endeavors to balance economic and environmental sustainability, while social sustainability is mainly in terms of safety and user experience; (2) the success of sustainable civil infrastructure SHM requires a collaborative technical and organizational effort; (3) since the influencing factors at different phases may interact with each other, the implementation process should emphasize forward-looking and holistic thinking.

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Section: The Design Of Decision-making Support Frameworkmentioning

confidence: 99%

Literature Review on the Structural Health Monitoring (SHM) of Sustainable Civil Infrastructure: An Analysis of Influencing Factors in the Implementation

Wang,

2024

Buildings

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“…Through collaborative efforts, solutions can be developed that address immediate needs and long-term challenges, enhancing resilience and durability. Integrating climate change considerations into flood estimation is increasingly essential to strengthen the resilience of scour protection systems (Maroni et al 2023). This integration relies on historical flood data and return period analysis.…”

Section: Consideration For the Redesign Of The Bridges To Eliminate T...mentioning

confidence: 99%

Scouring around bridge pier: a comprehensive review of countermeasure techniques

Baranwal,

Das

2024

Eng. Res. Express

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Scouring around bridge piers significantly threatens bridge stability and can cause tragic failures if not addressed effectively. Several remedial techniques have been developed to reduce local scour depth around bridge piers, including using scour countermeasures such as riprap, collar plate, slot, submerged vane, sacrificial pile, etc. These countermeasures can be used alone or in combination to provide additional protection against local scour. The selection of countermeasures depends on flow velocity, river bed sediment type, and bridge geometry. A thorough analysis of these factors is necessary before selecting a countermeasure. In this paper, an attempt has been made to summarize the efficiency of different remedial techniques to reduce scour depth around the bridge pier. The stability of the bed armouring device depends on its depth and installation position around the bridge pier, and its efficiency decreases as flow velocity increases. It is found that significant scour protection devices are more efficient in clear water scouring (CWS) conditions (V/Vc1.0) than live bed scouring (LBS) conditions (V/Vc>1.0). The combination of flow-altering devices is crucial in reducing scour, with a collar plate and slot combination being more effective than a single slot. The findings of this review paper are to provide a valuable resource for engineers and policymakers seeking to design and implement effective strategies for mitigating local scour around bridge piers.Keywords: Local scour, bridge pier, remedial technique, bed armouring devices, flow-altering devices

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“…The decision-making at the network level is governed by multiple bridge performance indicators such as structural health of the bridge, safety and security of users and workers, environmental impact, socio-economic impact on the users, and impact on agency's reputation (Allah Bukhsh, Stipanovic, Klanker, O'Connor, & Doree, 2019;Frangopol, Dong, & Sabatino, 2017;Yavuz, Attanayake, & Aktan, 2017). The decision-making has been supported by academic research that employed different techniques to predict the bridge condition using Markov chains (Le & Andrews, 2013), Petri-net (Yianni, Rama, Neves, Andrews, & Castlo, 2017), analytical hierarchy process (Rashidi et al, 2016), Monte Carlo simulations (Frangopol, Kallen, & Noortwijk, 2004), Bayesian (Maroni et al, 2019) and normal regressions (Babanajad et al, 2018). Different BMSs are also employed to aid decision-makers to keep bridges in an acceptable level of service within the transport networks.…”

Section: Bridge Locationmentioning

confidence: 99%

Risk-informed asset management to tackle scouring on bridges across transport networks

Sasidharan

Parlikad

Schooling

2021

Structure and Infrastructure Engineering

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Scour is one of the main causes of bridge failures resulting in significant macroeconomic impacts, often beyond the direct costs of infrastructure damage. Given the pressure to increase the resilience of transport networks, ageing bridge infrastructure, constrained budgets, variable knowledge of asset conditions and limited data, mixed ownership and operation of bridges, and concerns about the risks of climate change, there is a need to implement cost-effective monitoring and maintenance strategies. To this end, this study aims to set the scene for a risk-informed approach for tackling bridge scour, while considering the socioeconomic impacts of disruptions due to bridge failures or closures. This study reviews the current practices in predicting, monitoring and managing bridge scour. It discusses the development of a risk-informed approach to aid the whole-life appraisal of bridges while considering the direct and indirect costs associated with bridge failure or closures. The approach provides a rational means to enable asset managers to evaluate the factors that affect bridge failure risk, select and prioritise appropriate mitigation measures, thereby improving the allocation of scarce monitoring and maintenance resources.

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A Decision Support System for Scour Management of Road and Railway Bridges Based on Bayesian Networks

Cited by 5 publications

References 7 publications

Literature Review on the Structural Health Monitoring (SHM) of Sustainable Civil Infrastructure: An Analysis of Influencing Factors in the Implementation

Literature Review on the Structural Health Monitoring (SHM) of Sustainable Civil Infrastructure: An Analysis of Influencing Factors in the Implementation

Scouring around bridge pier: a comprehensive review of countermeasure techniques

Risk-informed asset management to tackle scouring on bridges across transport networks

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