Quasi-Self-Powered Piezo-Floating-Gate Sensing Technology for Continuous Monitoring of Large-Scale Bridges

Aono, Kenji; Hasni, Hassene; Pochettino, Owen; Lajnef, Nizar; Chakrabartty, Shantanu

doi:10.3389/fbuil.2019.00029

Cited by 10 publications

(2 citation statements)

References 47 publications

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“…Reference pavement measurements were collected with a conventional strain gauge. Furthermore, validating this new approach will also accelerate the usage of low-cost high-tech technology such as the piezo-floating-gate sensors [24][25][26].…”

Section: Aim Of This Papermentioning

confidence: 99%

Data Compression Approach for Long-Term Monitoring of Pavement Structures

et al. 2019

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Pavement structures are designed to withstand continuous damage during their design life. Damage starts as soon as the pavement is open to traffic and increases with time. If maintenance activities are not considered in the initial design or considered but not applied during the service life, damage will grow to a point where rehabilitation may be the only and most expensive option left. In order to monitor the evolution of damage and its severity in pavement structures, a novel data compression approach based on cumulative measurements from a piezoelectric sensor is presented in this paper. Specifically, the piezoelectric sensor uses a thin film of polyvinylidene fluoride to sense the energy produced by the micro deformation generated due to the application of traffic loads. Epoxy solution has been used to encapsulate the membrane providing hardness and flexibility to withstand the high-loads and the high-temperatures during construction of the asphalt layer. The piezoelectric sensors have been exposed to three months of loading (approximately 1.0 million loads of 65 kN) at the French Institute of Science and Technology for Transport, Development and Networks (IFSTTAR) fatigue carrousel. Notably, the sensors survived the construction and testing. Reference measurements were made with a commercial conventional strain gauge specifically designed for measurements in hot mix asphalt layers. Results from the carrousel successfully demonstrate that the novel approach can be considered as a good indicator of damage progression, thus alleviating the need to measure strains in pavement for the purpose of damage tracking.

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Section: Aim Of This Papermentioning

confidence: 99%

Data Compression Approach for Long-Term Monitoring of Pavement Structures

et al. 2019

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“…Energy harvesting techniques are mainly based on solar energy, thermal gradients and vibration energy. Among these techniques, vibration energy because of providing high level of energy and the ability for being embedded (as in concrete structures) could be used for a continuous large-scale monitoring [18][19][20][21]. As an example, Self-powered piezo-floating-gate (PFG) sensors empowered using piezoelectric transducers through harvesting energy are used for detection of distortion-induced fatigue cracking of steel bridges [22,23].…”

Section: Introductionmentioning

confidence: 99%

Novel Approaches for Fracture Detection in Steel Girder Bridges

Abedin

Mehrabi

2019

Infrastructures

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The bottom flanges of steel plate girder bridges can be considered fracture-critical elements depending on the number of girders and bridge configuration. For such cases, it is required that inspection of these bridges be carried out using costly “arms-length” approach. New techniques in structural health monitoring (SHM) that use non-contact sensors and self-powered wireless sensors present alternative approach for inspection. Application of such techniques would allow timely detection and application of repair and strengthening, in other word, providing for more resilient bridges. This paper investigates the feasibility of using a handful of self-powered wireless or non-contact sensors for continuous or periodic monitoring and detection of fracture in steel plate girder bridges. To validate this concept, vibration measurements were performed on an actual bridge in the field, and detailed finite element analyses were carried out on a multi-girder bridge. The records obtained show that vibration amplitude was significantly increased for fractured girder, and a distinct pattern of strain variation was registered in the vicinity of fracture, all of which can be detected effectively with relevant sensors. Moreover, the amplitude and frequency of the vibration was shown to be significant enough for providing the required power for typical sensor(s).

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Self‐Powered Sensory Transducers

Ranjan

2023

Self‐Powered Cyber Physical Systems

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Quasi-Self-Powered Piezo-Floating-Gate Sensing Technology for Continuous Monitoring of Large-Scale Bridges

Cited by 10 publications

References 47 publications

Data Compression Approach for Long-Term Monitoring of Pavement Structures

Data Compression Approach for Long-Term Monitoring of Pavement Structures

Novel Approaches for Fracture Detection in Steel Girder Bridges

Self‐Powered Sensory Transducers

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