Applications of optical fibre Bragg gratings sensing technology-based smart stay cables

Li, Hui; Ou, Jinping; Zhou, Zhi

doi:10.1016/j.optlaseng.2009.04.016

Cited by 104 publications

(59 citation statements)

References 4 publications

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“…However, the EM sensor can only measure the static cable tension force and cannot monitor the cable tension force in real time because of the demagnetization effect. Fiber optical sensors have been proposed to monitor cable tension force [10,54,66,85], for instance, self-sensing FBG-FRP bars have been proposed to be bounded with steel wires and anchored in both ends of the stay cable with steel wires. Therefore, the FBG-FRP bars will deform with the steel wires in the cable and can sense the strain of the cable [54,66].…”

Section: Design Of Sensor Modules and Sensing Technologiesmentioning

confidence: 99%

“…Fiber optical sensors have been proposed to monitor cable tension force [10,54,66,85], for instance, self-sensing FBG-FRP bars have been proposed to be bounded with steel wires and anchored in both ends of the stay cable with steel wires. Therefore, the FBG-FRP bars will deform with the steel wires in the cable and can sense the strain of the cable [54,66]. Li et al [54] reported that this technique has been applied into the stay cables in the Tianjin Yonghe Cable-stayed Bridge in China.…”

Section: Design Of Sensor Modules and Sensing Technologiesmentioning

confidence: 99%

“…Optical fiber sensing technology and wireless sensing technology provide substantial prospects. Optical fiber sensors have been widely used in many SHM system for cable-stayed bridges [54,74,85].Wireless sensors have been installed at the Gi-Lu Cable-stayed Bridge by Weng et al [78], the Ferriby Road Bridge (a cable-stayed bridge) by [30], the Jindo Bridge (a cable-stayed bridge in Korea) by Cho et al [17] and Jang et al [33], and the Hwamyung Cable-stayed Bridge in Korea by Nguyen et al [61,62]. All applications of wireless sensor technology have demonstrated the potential to be employed in bridge management.…”

Section: Introductionmentioning

confidence: 99%

“…Transportation Research Board of the National Academies of the USA [75] comprehensively summarized the monitoring technologies for stay cables developed throughout the world, which include magnetic, ultrasonic, X-ray, acoustic, and remote or contact vibrationbased techniques for short-term monitoring, and acoustic emission technique, acceleration monitoring technique, and distributed fiber optic strain sensing technique for long-term monitoring. Additionally, the applications of elasto-magnetic (EM) sensor, fiber optic strain and temperature sensors, acoustic emission sensors, accelerometers, and laser vibrometers in practical stay cables have been reported [23,54,75,85]. Although some non-destructive testing techniques have been developed for stay cables for short-term inspection, such as ultrasonic, X-ray, etc., this paper only focuses on the techniques for long-term monitoring of cable-stayed bridges and those techniques for short-term inspection will not be mainly introduced here.…”

Section: Introductionmentioning

confidence: 99%

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The state of the art in structural health monitoring of cable-stayed bridges

2015

J Civil Struct Health Monit

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199

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Cable-stayed bridges are a type of long-span bridges that have been extensively constructed throughout the world. However, cable-stayed bridges suffer from a variety of performance deteriorations and natural disasters during their service time. Structural health monitoring, having emerged since the early 1990s, is regarded as an in situ field experimental technique to understand the behaviors and performance of real, full-scale bridges under real loadings and environmental conditions and to further ensure the safety, serviceability, durability, and sustainability of bridges. In this paper, the existing various monitoring technologies for cable-stayed bridges developed are overviewed. The design approaches of structural health monitoring systems for cable-stayed bridges are introduced. The data analysis, modeling, and safety evaluation of cable-stayed bridges based on structural health monitoring technology are addressed. The applications of structural health monitoring technology for cablestayed bridges are summarized. The design code for structural health monitoring systems is described for large highway bridges (including cable-stayed bridges) that are authorized by the Ministry of Transportation in China. Finally, this study discusses the challenges and future trends in structural health monitoring technologies for cable-stayed bridges, particularly for data-driven science and technology in structural health monitoring field.

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Section: Design Of Sensor Modules and Sensing Technologiesmentioning

confidence: 99%

Section: Design Of Sensor Modules and Sensing Technologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The state of the art in structural health monitoring of cable-stayed bridges

2015

J Civil Struct Health Monit

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199

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“…Therefore cables need to be constantly monitored for the reliable operation of bridges. Most large and medium-sized bridges have established the SHM system based on the method of monitoring the cables [4,5]. However, the following problems still exist in these methods currently: firstly, while a single cable appear broken wires, the inner stress of this cable will redistribute, and then the tension of other steel wires or strands will increase.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Monitoring of Wire Breaks in Bridge Cables

Liu¹,

Li²,

Gong³

et al. 2017

IJHIT

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Strain and damage monitoring of optical fiber sensor‐embedded carbon fiber reinforced polymer confined cracked pipes

Shi,

Kong,

et al. 2024

Polymer Composites

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Pipelines for water, oil, or gas transportation are prone to cracking damage due to severe service conditions. Carbon fiber reinforced polymer (CFRP) composites have been applied to repair cracked pipelines. In the present paper, fiber Bragg grating (FBG) and Brillouin optical time domain analysis (BOTDA) technology were applied to monitor the circumferential strains of the steel pipes and CFRP confined seamless/cracked steel pipes in hydrostatic testing. The finite element model (FEM), and the mechanical model were used to verify and analyze monitored strains. The results showed that FBG achieved real‐time and high‐precision strain monitoring with an error of less than 9.3%, better than BOTDA (less than 22.0%). Compared with FBG, the strain of FEM showed that the error of seamless pipe is less than 6%, and the error of cracked pipe is less than 15%. FEM strain field analysis revealed the failure mode of the confined cracked pipe in tensile fracture of structural adhesive between CFRP and steel substrate. The debonding was identified by the sudden strain drops (4.3%–26.2%) in the cracked area. The leakage was identified by a sudden drop (53.0%) in the slope significantly and fluctuations from the curve of strain and hydrostatic pressure after failure.Highlights Sensor‐embedded CFRP confined cracked pipes prevent leakage and monitor strain. Multiple FBG sensors are more accurate to monitoring the pipe strain than BOTDA. Debonding of CFRP confined cracked pipes is monitored by the sudden strain drop. Leakage of CFRP confined cracked pipes is detected by strain fluctuations.

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Applications of optical fibre Bragg gratings sensing technology-based smart stay cables

Cited by 104 publications

References 4 publications

The state of the art in structural health monitoring of cable-stayed bridges

The state of the art in structural health monitoring of cable-stayed bridges

An Experimental Study on the Monitoring of Wire Breaks in Bridge Cables

Strain and damage monitoring of optical fiber sensor‐embedded carbon fiber reinforced polymer confined cracked pipes

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