Frontier of continuous structural health monitoring system for short &amp; medium span bridges and condition assessment

Miyamoto, Atsushi; Kiviluoma, Risto; Yabe, Akira

doi:10.1007/s11709-018-0498-y

Cited by 17 publications

(5 citation statements)

References 28 publications

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“…They also allow knowing the historical global behavior of the bridges to evidence degradation tendencies, instead of only detect the effects of extreme events, such as collisions or environmental attacks (strong-motion earthquakes or hurricanes). 21 The SHM of bridges evaluates their integrity, and also includes the analysis of remaining life and its load-carrying capacity. Data collected are used to optimize the operation, maintenance, and repair of bridges.…”

Section: Bridges Continuous Shm and Vbi-related Workmentioning

confidence: 99%

A structural health monitoring method proposal based on optical scanning and computational models

Flores-Fuentes

Alba-Corpus

Sergiyenko

et al. 2022

International Journal of Distributed Sensor Networks

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This article proposes a method for continuous bridge displacement monitoring combining the dynamic triangulation scanning and load estimation by vehicle image recognition. The vehicle–bridge interaction is a non-stationary dynamic process parameter of high relevance to understanding the static instability behavior of bridges. The knowledge of the load on a bridge in the specific time when its structural spatial coordinates are measured allows correlating the bridge displacement with the effect of vehicle–bridge interaction. The evaluation of such correlation is mandatory in order to verify if the observed bridge displacement is due to the nature of its operation or due to it is presenting structural damage. The proposed method is continuous structural health monitoring method, based on the combination of three approaches evaluated at laboratory environment: (1) a three-dimensional optical scanning system for displacement measurement, (2) a load measurement system for vehicle–bridge interaction assessment, and (3) a two-measurement systems data correlation; to be implemented in bridges at a real environment to collect their historical behavior. Overall, for each approach, the measurement systems’ principles, the laboratory experimental methodology followed, and results obtained are presented.

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Section: Bridges Continuous Shm and Vbi-related Workmentioning

confidence: 99%

A structural health monitoring method proposal based on optical scanning and computational models

Flores-Fuentes

Alba-Corpus

Sergiyenko

et al. 2022

International Journal of Distributed Sensor Networks

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show abstract

“…They applied the Analytic Hierarchy Process AHP to analyze the data from multiple sources and set a safety alarm threshold for the bridge during construction. Miyamoto et al 21 proposed an early warning method for bridge safety using wireless sensor network technology. The method showed satisfactory results in various performance indicators such as flood delay, energy efficiency and throughput.…”

Section: Introductionmentioning

confidence: 99%

Research on safety condition assessment methodology for single tower steel box girder suspension bridges over the sea based on improved AHP-fuzzy comprehensive evaluation

Su,

Guo,

Wang

et al. 2024

Sci Rep

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In order to propose a reliable method for assessing the safety condition for single-tower steel box girder Suspension bridges over the sea, a condition monitoring system is established by installing sensors on the bridge structure. The system is capable of gathering monitoring data that influence the safety status of the bridge. These include cable tension, load on the main tower and pylon, bearing displacement, wind direction, wind speed, and ambient temperature and humidity. Furthermore, an improved Analytic Hierarchy Process (AHP) algorithm is developed by integrating a hybrid triangular fuzzy number logic structure. This improvement, coupled with comprehensive fuzzy evaluation methods, improves the consistency, weight determination, and security evaluation capabilities of the AHP algorithm. Finally, taking the No.2 Channel Bridge as an example and based on the data collected by the health monitoring system, the application of the safety assessment method proposed in this paper provides favorable results in evaluating the overall safety status of the bridge in practical engineering applications. This provides a basis for management decisions by bridge maintenance departments. This project confirms that the research results can provide a reliable method for assessing the security status of relevant areas.

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“…They applied the Analytic Hierarchy Process AHP to analyze the data from multiple sources and establish a safety alarm threshold for the bridge during construction. Miyamoto, A et al [21] proposed an early warning method for bridge safety using wireless sensor network technology. The method showed satisfactory results in various performance indicators such as flood delay, energy efficiency and throughput.…”

Section: Introductionmentioning

confidence: 99%

Research on Safety Condition Assessment Methodology for Single Tower Steel Box Girder Suspension Bridges Over The Sea Based on Improved AHP-Fuzzy Comprehensive Evaluation

Su,

Guo,

Wang

et al. 2024

Preprint

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In order to propose a reliable method for assessing the safety condition for single-tower steel box girder Suspension bridges over the sea, a condition monitoring system is established by installing sensors on the bridge structure. This system collects monitoring data on cable forces, bridge strains, displacements and other parameters that affect the safety condition of the bridge. Furthermore, an improved Analytic Hierarchy Process (AHP) algorithm is developed by integrating a hybrid triangular fuzzy number logic structure. This improvement, coupled with comprehensive fuzzy evaluation methods, improves the consistency, weight determination, and security evaluation capabilities of the AHP algorithm. In addition, a case study will be conducted on the 2nd Channel Bridge to build the health monitoring system and evaluate the safety status of the bridge. The implemented health monitoring system and assessment of the overall safety condition of the bridge have shown positive results in practical engineering applications and provided a basis for decision-making in bridge maintenance departments. This project confirms that the research results can provide a reliable method for assessing the security status for relevant areas.

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Frontier of continuous structural health monitoring system for short & medium span bridges and condition assessment

Cited by 17 publications

References 28 publications

A structural health monitoring method proposal based on optical scanning and computational models

A structural health monitoring method proposal based on optical scanning and computational models

Research on safety condition assessment methodology for single tower steel box girder suspension bridges over the sea based on improved AHP-fuzzy comprehensive evaluation

Research on Safety Condition Assessment Methodology for Single Tower Steel Box Girder Suspension Bridges Over The Sea Based on Improved AHP-Fuzzy Comprehensive Evaluation

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