A case for adding an inspection level related to structural health monitoring (SHM) for bridge evaluation

Mufti, Aftab A.; Raeisi, Farnaz; Khalid, Huma; Horosko, Andy; Bakht, Baidar

doi:10.1139/cjce-2019-0703

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…This method will generate a large amount of monitoring data, and the cost is high, so it is only suitable for large-span bridge projects that have large investments and play a vital role [11]. In the current engineering practice, the inspection of small and medium-sized span bridges mainly relies on manual inspection, and the inspection cycle is generally 6-10 years, but manual inspection makes it difficult to accurately and timely monitor the status of bridges [12,13]. Therefore, an indirect measurement method suitable for the detection of medium and small-span bridges has been widely used at home and abroad.…”

Section: Introductionmentioning

confidence: 99%

BPF-WT combined filtering method for indirect identification of bridge dynamic characteristics

Zheng,

Yang,

et al. 2024

Meas. Sci. Technol.

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The indirect measurement method of extracting the dynamic characteristics of the bridge structure from the dynamic response of passing vehicles is a new method for bridge structure health monitoring, which has the advantage of cost-effectiveness. However, how to improve the accuracy of the indirect measurement method to identify the dynamic characteristics of the bridge is the current research focus. In this paper, combining the characteristics and advantages of bandpass filter (BPF) and wavelet transform (WT), a simple and effective joint filtering method BPF-WT is proposed for indirect identification of bridge dynamic characteristics. This method can eliminate the peak caused by the known vehicle frequency, and realize the layer-by-layer decomposition and reconstruction of the signal through the advantage of WT, to achieve the purpose of automatically executing the packet filtering task. This paper takes a simple trolley as an example to conduct a scaled test study to identify the dynamic characteristics of a bridge and proves that the BPF-WT joint filtering method can perform bridge dynamics under three conditions: different vehicle weights, different driving speeds, and driving on bridge decks with different roughness. Characteristic identification results and their influence rules. According to the research findings, the method of combined filtering suggested in this paper can efficiently filter out the noise produced by the vehicle's frequency and the surroundings. This method can also distinctly detect the initial three frequencies of the bridge. Therefore, it demonstrates the practicality and efficiency of the BPF-WT combined filtering technique, which has a broad range of potential applications.

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Section: Introductionmentioning

confidence: 99%

BPF-WT combined filtering method for indirect identification of bridge dynamic characteristics

Zheng,

Yang,

et al. 2024

Meas. Sci. Technol.

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“…(i) e first measure is a system of human monitoring, giving information that is often more qualitative than quantitative, and that can be somewhat subjective. e techniques of this measure include inspection and monitoring by manual methods, visual inspection, and use of specialized equipment [9][10][11]. is measure has significant advantages and is simple and easy to implement, and the inspection cost for initial investment is low, but it has disadvantages as well: the damages in the details of the bridge structure cannot be detected in a timely fashion, and the bridge material mechanical changes cannot be evaluated.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the Dynamic Parameters of a Structure’s Vibration Process and the Loading Model Moving on a Bridge

Nguyen

2021

Advances in Civil Engineering

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A sufficiently strict conduction of supervision during bridge operation is a crucial matter for many countries, including the underdeveloped country of Viet Nam. In recent times, the budgets in developed countries used for funding the implementation of quality-assessment procedures are quite high compared to the lower budgets in underdeveloped countries. The plan proposed in this work addresses the current lack of information available in the process of structure-quality evaluation. The vibration signals will be acquired from the random circulation status to determine the structure’s behavior so as to utilize the signal information during the bridge span’s operation. The study’s main goal is to find various parameters that can be used to evaluate the actual bridge performance. These parameters must meet certain criteria, such as high sensitivity, low measurement cost, and efficiency in the measurement process, but must not affect the itinerary of vehicles moving on the bridge. The actual structural vibration signals used in this work currently serve as a best trend model for evaluating the operation of the bridge span structure. This study will focus on determining the relationship among deflection, acceleration, and vehicle load so as to evaluate the structure’s working process. This study has also fabricated an experimental model to evaluate and test the sensitivity of the parameters utilized in this study in order to verify the results obtained. The results obtained in this research will be applied for the quality-control process in several bridge models with span structures built with the composite steel concrete cross section of the beam. Many developing countries, including Viet Nam, will receive benefit in the future from the useful advantages presented in this study.

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A Methodological Framework for Bridge Surveillance

2023

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The Italian “Guidelines for risk classification and management, security assessment and monitoring of existing bridges”, published in 2020 after the collapse of the Polcevera viaduct in Northern Italy, present a multilevel methodology that involves on-site operators and universities/research centers carrying out and validating a management process from on-site survey to the bridges’ condition assessment. The main goals of this process are to acquire appropriate knowledge of the current state and its evolution over time of the overall buildings that compose the infrastructures, with the aim to support the managing companies in a decision-making process and the purpose of guaranteeing service in full safety. In particular, the guidelines propose the use of engineered software platforms for data digitalization of the structures with the aim to create a Building Management System (BMS) in which the main historical and current state information is collected and can then be uploaded continually. In 2020, the CUGRI (Inter-University Research Center for the Prediction and Prevention of Major Hazards) and the SAM (Southern Highways Company) launched an innovative surveillance management model established on a multidisciplinary approach based on Geography Markup Language (GML), BIM tools, on-site interdisciplinary inspections, and multi-hazard analysis. The experimented methodology provides the on-site training of inspectors, the elaboration of suitable BIM models according to the above guidelines, and AINOP (National Archive of Public Infrastructures) requirements, and an expert judgement process for preliminary bridge assessment and data validation to support the maintenance managing process. The study presents an innovative operative model for the surveillance process, which integrates on-site expeditious inspections and multidisciplinary expert judgements by using an appropriate digitalization of the bridges with BIM and GIS technologies. The paper illustrates the experimental methodology performed on the A3 highway, which connects Naples to Salerno in Southern Italy, highlighting issues and opportunities, moreover in a first interdisciplinary contribution of object-oriented landslide mapping modelling.

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A case for adding an inspection level related to structural health monitoring (SHM) for bridge evaluation

Cited by 3 publications

References 5 publications

BPF-WT combined filtering method for indirect identification of bridge dynamic characteristics

BPF-WT combined filtering method for indirect identification of bridge dynamic characteristics

Relationship between the Dynamic Parameters of a Structure’s Vibration Process and the Loading Model Moving on a Bridge

A Methodological Framework for Bridge Surveillance

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