Monitoring the structural health of main cables of suspension bridges

Betti, Raimondo; Sloane, Matthew Jake Deeble; Khazem, Dyab; Gatti, C.

doi:10.1007/s13349-016-0165-8

Cited by 18 publications

(4 citation statements)

References 6 publications

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“…Corrosion refers to metallic parts in bridge and may degrade the bridge performance. It is necessary to monitor corrosion for detecting bridge degradation (Betti et al 2016). Scour refers to the erosion of stream bed and bank around bridge foundations caused by flowing water (Chen et al 2014).…”

Section: Achievements and Issues In Bridge Health Detectionmentioning

confidence: 99%

Intelligent Fault Diagnosis for Bridge via Modal Analysis

Wenjun

2022

International Journal of Information System Modeling and Design

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Due to natural disasters and man-made reasons, bridges are prone to structural damage during long-term usage, which reduces the associated carrying capacity, increases natural aging, and reduces safety. It is urgent to monitor the health status of bridge structure via intelligent technology. This paper proposes a bridge fault recognition structure. First, the signals of bridge parameter are collected by using distributed sensors. Then, the collected signals are processed by signal processing to extract the features in time and frequency domain. Lastly, the extracted features are used to learn an intelligent classifier. The large margin distribution machine is adopted as a classification model. The experimental results have proven the feasibility of the proposed bridge fault recognition structure.

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Section: Achievements and Issues In Bridge Health Detectionmentioning

confidence: 99%

Intelligent Fault Diagnosis for Bridge via Modal Analysis

Wenjun

2022

International Journal of Information System Modeling and Design

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“…Although the observed trend was not consistent throughout the cross section of the mock-up cable, the RH values were strong indicators of corrosion rate levels. The same group later applied the same strategy on the Manhattan Bridge [ 58 , 59 ]. The field data showed that corrosion levels increased with the relative humidity level increasing, and relative humidity did not vary with cable depth.…”

Section: Parameters Affecting Bridge Conditionmentioning

confidence: 99%

Challenges in Bridge Health Monitoring: A Review

Rizzo

Enshaeian

2021

Sensors

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Bridge health monitoring is increasingly relevant for the maintenance of existing structures or new structures with innovative concepts that require validation of design predictions. In the United States there are more than 600,000 highway bridges. Nearly half of them (46.4%) are rated as fair while about 1 out of 13 (7.6%) is rated in poor condition. As such, the United States is one of those countries in which bridge health monitoring systems are installed in order to complement conventional periodic nondestructive inspections. This paper reviews the challenges associated with bridge health monitoring related to the detection of specific bridge characteristics that may be indicators of anomalous behavior. The methods used to detect loss of stiffness, time-dependent and temperature-dependent deformations, fatigue, corrosion, and scour are discussed. Owing to the extent of the existing scientific literature, this review focuses on systems installed in U.S. bridges over the last 20 years. These are all major factors that contribute to long-term degradation of bridges. Issues related to wireless sensor drifts are discussed as well. The scope of the paper is to help newcomers, practitioners, and researchers at navigating the many methodologies that have been proposed and developed in order to identify damage using data collected from sensors installed in real structures.

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“…Yue [61] developed a strain and temperature monitoring system for steel wires of main cable based on the remote on-line fiber grating technology. Sloane et al [62] and Betti et al [63] developed a nondestructive corrosion monitoring system which can dynamically monitor the temperature, humidity, and corrosion level of main cable in order to explore the main cable degradation.…”

Section: The Service Safety Assessmentmentioning

confidence: 99%

Review on the Service Safety Assessment of Main Cable of Long Span Multi-Tower Suspension Bridge

Wang

et al. 2021

Applied Sciences

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The long-span multi-tower suspension bridge is widely used in the construction of river and sea crossing bridges. The load-bearing safety and anti-sliding safety of its main cable are directly related to the structural safety of a suspension bridge. Failure mechanisms of the main cable of a long-span multi-tower suspension bridge are discussed. Meanwhile, the tribo-corrosion-fatigue of main cable, contact, and slip behaviors of the saddle and service safety assessment of the main cable are reviewed. Finally, research trends in service safety assessment of main cable are proposed. It is of great significance to improve the service safety of the main cable and thereby to ensure the structural safety of long-span multi-tower suspension bridges.

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Monitoring the structural health of main cables of suspension bridges

Cited by 18 publications

References 6 publications

Intelligent Fault Diagnosis for Bridge via Modal Analysis

Intelligent Fault Diagnosis for Bridge via Modal Analysis

Challenges in Bridge Health Monitoring: A Review

Review on the Service Safety Assessment of Main Cable of Long Span Multi-Tower Suspension Bridge

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