Underwater inspection of concrete-filled steel pipes using guided waves

Na, Won–Bae; Kundu, Tribikram; Ryu, Yeon-Sun

doi:10.1007/bf02829037

Cited by 9 publications

(3 citation statements)

References 13 publications

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“…Na et al . examined the interface between the steel and the concrete in concrete‐filled steel pipes in water. Cylindrical Lamb waves were used in this study because of the cylindrical cross sections of the samples.…”

Section: Research In Steel‐concrete Structuresmentioning

confidence: 99%

Ultrasonic health monitoring in structural engineering: buildings and bridges

Mutlib

Baharom

El-Shafie

et al. 2015

Struct. Control Health Monit.

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SUMMARYUltrasonic monitoring is one of the most important tools in the field of structural health monitoring (SHM). The main goal of this paper is to provide a comprehensive review of the recent advances and achievements in ultrasonic wave SHM of buildings and bridges built with concrete and steel materials and the types of sensors used in these structures. In this paper, the parameters affecting the monitoring process, including the type of damage, the type of ultrasonic wave, and the type of sensor, are reviewed. The sensor devices used to transmit and receive ultrasonic waves, like lead zirconate titanate, electromagnetic acoustic transducer, and others and their applications in building and bridges, are discussed. The limitations of each type of theses sensors are highlighted. Finally, conclusions are drawn and recommendations for an improved sensor overcoming the shortcomings of the current sensors are given.

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Section: Research In Steel‐concrete Structuresmentioning

confidence: 99%

Ultrasonic health monitoring in structural engineering: buildings and bridges

Mutlib

Baharom

El-Shafie

et al. 2015

Struct. Control Health Monit.

View full text Add to dashboard Cite

show abstract

“…Acoustic logging [9] Optical [10] Cable sensing [11] GPR [12] Vapor sampling Soil monitoring and tracer gas [13] Guided wave method [14] Ultrasonic flow [15] C wavelet analysis has been used. Since the faults in the pipeline network introduce particular patterns in pressure signals obtained from transients, the problem of leak detection is to investigate the signal trend over a period of time.…”

Section: Parametersmentioning

confidence: 99%

A Method for Distributed Pipeline Burst and Leakage Detection in Wireless Sensor Networks Using Transform Analysis

Rashid

Qaisar

Saeed

et al. 2014

International Journal of Distributed Sensor Networks

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Bursts and leakages have turned out to be one of the most frequent malfunctions in liquid pipeline distribution systems. In recent years, the issue has gained a lot of attention in research community due to associated financial costs, environmental hazards, and safety considerations. Wireless sensor network (WSN) based leakage detection and localization can provide an exceptional level of operational efficiency, safety assurance, and real-time parametric view of the entire pipeline network. In this paper, we propose a transient pressure wave based technique coupled with wavelet analysis to achieve reliable detection and localization of abrupt bursts and leakages. The presented technique uses the information carried in the transient pressure signal. A specific pattern is induced on the pressure traces within the pipeline due to leak; we use wavelet analysis to detect these local singularities. The proposed algorithm is distributed in nature and run on low power sensor nodes. The algorithm is deployed in field on a custom pipeline test bed and performance results are documented for various testing scenarios. A comparison of proposed wavelet technique with other widely used methods has been carried out. The technique provides more than 90% accuracy in a number of deployment scenarios for high noise generating long pipeline networks.

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“…Rose [5,6] provided the inspection potential of ultrasonic GWs for rail inspection. Na et al [7,8] demonstrated the feasibility of GWs for both underwater inspection of concrete-filled steel pipes and glass fiber reinforced polymer/concrete interface testing. Lanza di Scalea et al [9] applied GW methods for stress monitoring and defect detection in steel strands.…”

Section: Introductionmentioning

confidence: 99%

Smart Aggregate-Piezoceramic Patch Combination for Health Monitoring of Concrete Structures

et al. 2016

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A new method combining an embedded smart aggregate and surface mounted piezoceramic patches is introduced for health monitoring of concrete structures. The smart aggregate is embedded in a concrete beam as an actuator (or transmitter), and piezoceramic patches are attached on the surface of the concrete beam as sensors. Two tests using the smart aggregate and the piezoceramic patches are conducted. The first test investigates the sensitivity of the recorded signal amplitude-frequency relation on the piezoceramic patches. To explain the significant amplitude fluctuations in the results, the possibility of resonance occurring in the piezoceramic patches in a certain frequency range is verified through finite element modeling. In the second test, a damage index is proposed to evaluate the health of concrete structures and a three-point bending test is conducted to induce damage in the concrete beam. It is observed that, with increasing severity of damage in the concrete beam, the recorded signal amplitude at the patches decreases gradually while the value of the damage index increases significantly. The experimental results show that the proposed method is an effective tool for health monitoring of concrete structures.

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Underwater inspection of concrete-filled steel pipes using guided waves

Cited by 9 publications

References 13 publications

Ultrasonic health monitoring in structural engineering: buildings and bridges

Ultrasonic health monitoring in structural engineering: buildings and bridges

A Method for Distributed Pipeline Burst and Leakage Detection in Wireless Sensor Networks Using Transform Analysis

Smart Aggregate-Piezoceramic Patch Combination for Health Monitoring of Concrete Structures

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