Monitoring‐based performance assessment of rail‐bridge interaction based on structural reliability

Strauß, Alfred; Karimi, Saeed; Kopf, Fritz; Capraru, Catalin; Bergmeister, Konrad

doi:10.1002/suco.201500019

Cited by 12 publications

(8 citation statements)

References 14 publications

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“…Complex multidisciplinary problems related to the monitoring of concrete bridges can be seen to stimulate the development of advanced experimental and theoretical research activities 47–58 …”

Section: Discussionmentioning

confidence: 99%

Strategies and tools for the monitoring of concrete bridges

Bień

Kużawa

Kamiński

2020

Structural Concrete

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The paper presents a review of testing methods, a proposal for classifying the strategies, and tools applied in the monitoring of concrete bridges, the required consistent taxonomy of defects, and also the degradation mechanisms that are typical for such structures. Two main strategies of bridge monitoring are distinguished and described: inspection‐based monitoring and device‐based monitoring. The basic functional components of both types of monitoring systems are also presented. Monitoring methods, including nondestructive and semi‐destructive techniques, as well as various types of sensors based on physical, chemical, and biological technologies, are discussed and classified. The general rules of the implementation and operation of bridge monitoring systems are presented while taking into account the results of international research projects and contemporary practical experience. The considered issues are related to the fib Model Code 2020 (MC2020), which focuses on the evaluation of structural performance and which is assisted by monitoring and testing.

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Section: Discussionmentioning

confidence: 99%

Strategies and tools for the monitoring of concrete bridges

Bień

Kużawa

Kamiński

2020

Structural Concrete

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“…Nowadays, many scientific teams 1,2,3,4,5 pay attention to different aspects of structural health monitoring (SHM) to satisfy the increasing demands for safety and for reduction of maintenance and other costs. In accordance with, 6 another reason for paying greater attention to SHM of bridges is their gradual aging, which can be the source of potential damage.…”

Section: Introductionmentioning

confidence: 99%

Case study: The Harbor Bridge in Bratislava

Venglár

Sokol

2020

Structural Concrete

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Bratislava Harbor Bridge is an important part of Slovak highway and railway network. The authorities of the bridge (Railways of the Slovak Republic and National Motorway Company) cannot afford to close it. In the case of closure, traffic in Bratislava would be paralyzed, as up to 100,000 vehicles pass the bridge daily. Because of that, only dynamic tests during operation are possible, but the mentioned companies do not possess a sophisticated measurement system for structural health monitoring purposes. Therefore, a preliminary proposal of a measuring system has been prepared, in accordance with the fact that the bridge is one of the most complex structures in Slovakia. An initial and subsequent validated and verified FEM model have been used for numerical calculations. Time history analysis has also been used for verification and validation of the FEM model. This article also presents a comparison of current results of operational modal analysis and results of numerical analysis. It includes the recommendations for the fib Model Code 2020 (MC2020) as well.

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“…A reasonable reinforcement scheme is based on an accurate structural performance assessment [11][12][13]. However, there are uncertainties in predicting structural resistance and load effects [14][15][16]. Therefore, the probabilistic methods are often used in structural performance evaluation [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

System Reliability Evaluation of Prefabricated RC Hollow Slab Bridges Considering Hinge Joint Damage Based on Modified AHP

et al. 2019

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The prefabricated reinforced concrete (RC) hollow slab bridges, with the advantages of high quality, lower cost and shorter construction period, have been widely used for small-to-medium-span highway bridges in China. Because of environmental deterioration and traffic volume increases, the performance of the bridge system deteriorates gradually. Accurate bridge system evaluation can provide a reliable basis for maintenance and management. A bridge system is composed of multiple interrelated components, which makes the system reliability evaluation become a computationally intractable work. In this paper, an effective method was proposed to evaluate the system reliability of the prefabricated RC hollow slab bridge considering hinge joint damage based on the modified analytic hierarchy process (AHP). Considering the subjectivity of the traditional AHP method in constructing the judgment matrix, this paper proposed an objective construction method of the judgment matrix to modify the traditional AHP. The modified hinge plate method (MHPM) proposed by the previous research was utilized to analyze the effect of hinge joint damage on system reliability. In order to verify the applicability of the proposed system reliability evaluation method, a simply supported RC hollow slab bridge was selected as the case study and the system reliability indexes were compared with the traditional series and parallel methods. The results indicated that the traditional methods were either too conservative or too radical to objectively evaluate the actual system reliability level of the structure. In contrast, the proposed method in this paper was more suitable for evaluating the system reliability of such bridges, and more accurate in providing maintenance decision makers with a relatively reasonable bridge condition information.

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Monitoring‐based performance assessment of rail‐bridge interaction based on structural reliability

Cited by 12 publications

References 14 publications

Strategies and tools for the monitoring of concrete bridges

Strategies and tools for the monitoring of concrete bridges

Case study: The Harbor Bridge in Bratislava

System Reliability Evaluation of Prefabricated RC Hollow Slab Bridges Considering Hinge Joint Damage Based on Modified AHP

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