Detecting of the Longitudinal Grouting Quality in Prestressed Curved Tendon Duct Using Piezoceramic Transducers

Jiang, Tianyong; He, Bin; Zhang, Yaowen; Wang, Lei

doi:10.3390/s20041212

Cited by 12 publications

(9 citation statements)

References 59 publications

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“…Interesting research has also been carried out concerning the implementation of portable PZT-based active sensing boards in prestressed concrete. Nguyen and Kim [85] introduced a smart PZT-interface stress wave-based system using a multiplexed impedance sensor board to monitor prestress-loss in tendon-anchorage connection and Jiang et al [86][87][88] proposed a data acquisition board connected with PZT patches and smart aggregates to detect the grouting quality of the prestressed curved tendon ducts in lab-scale test specimens. Zhang et al [89] also implemented this data acquisition board to monitor the wedge anchorage system's looseness status in steel strands with wedges and barrel anchorages.…”

Section: Introductionmentioning

confidence: 99%

Flexural Damage Diagnosis in Reinforced Concrete Beams Using a Wireless Admittance Monitoring System—Tests and Finite Element Analysis

Chalioris

Kytinou

Voutetaki

et al. 2021

Sensors

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The utilization and effectiveness of a custom-made, portable and low-cost structural health monitoring (SHM) system that implements the PZT-based electro-mechanical admittance (EMA) methodology for the detection and evaluation of the damage of flexural reinforced concrete (RC) beams is presented. Tests of large-scale beams under monotonic and cyclic reversal-imposed deformations have been carried out using an integrated wireless impedance/admittance monitoring system (WiAMS) that employs the voltage measurements of PZT transducers. Small-sized PZT patches that have been epoxy-bonded on the steel bars surface and on the external concrete face of the beams are utilized to diagnose damages caused by steel yielding and concrete cracking. Excitations and simultaneous measurements of the voltage signal responses of the PZT transducers have been carried out at different levels of the applied load during the tests using the developed SHM devices, which are remotely controlled by a terminal emulator. Each PZT output voltage versus frequency response is transferred wireless and in real-time. Statistical index values are calculated based on the signals of the PZT transducers to represent the differences between their baseline response at the healthy state of the beam and their response at each loading/damage level. Finite Element Modeling (FEM) simulation of the tested beams has also been performed to acquire numerical results concerning the internal cracks, the steel strains and the energy dissipation and instability parameters. FEM analyses are used to verify the experimental results and to support the visual observations for a more precise damage evaluation. Findings of this study indicate that the proposed SHM system with the implementation of two different PZT transducer settings can be effectively utilized for the assessment of structural damage caused by concrete cracking and steel yielding in flexural beams under monotonic and cyclic loading.

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Section: Introductionmentioning

confidence: 99%

Flexural Damage Diagnosis in Reinforced Concrete Beams Using a Wireless Admittance Monitoring System—Tests and Finite Element Analysis

Chalioris

Kytinou

Voutetaki

et al. 2021

Sensors

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“…Schematic representation of boundary conditions is presented in Figure 4 a. The application of piezoelectric sensors in damages or different type of defect detection was used by other authors [ 20 , 21 , 31 ]; as for a structural health monitoring (SHM) system, this method is of great significance [ 32 ].…”

Section: Simulation Research Of Defect Determination In Composite mentioning

confidence: 99%

“…An overview of applications of piezoelectric sensors for composite defect detection points out that they are widely used due to their unique sensing ad actuating properties [ 20 ], both for the detection of homogeneous materials and complex composites. In the work of Jiang et al [ 21 ], stress wave-based active sensing method using piezoceramic transducers (four lead zirconate titanate actuators, where one generates stress waves, and the other three were detectors of wave responses) were used to detect longitudinal grouting quality of the prestressed curved tendon ducts. Another solution [ 22 ] is a multi-element sensor including electrical resistivity probes, selective electrodes, and a steel corrosion monitoring system, which enables the real-time and non-destructive monitoring selected parameters.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Transducer-Based Diagnostic System for Composite Structure Health Monitoring

Dragašius

Eidukynas

Jurenas

et al. 2021

Sensors

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This paper focuses on the investigation of the diagnostic system for health monitoring and defects, detecting in composite structures using a piezoelectric sensor. A major overview of structural defects in composite materials that have an influence on product performance as well as material strength is presented. Particularly, the proposed diagnostic (health monitoring) system enables to monitor the composite material plate defects during the exploitation in real-time. The investigated health monitoring system can indicate the material structure defects when the periodic test input signal is provided to excite the plate. Especially, the diagnostic system is useful when the defect placement is hard to be identified. In this work, several various numerical and experimental studies were carried out. Particularly, during the first study, the piezoelectric transducer was used to produce mechanical excitation to the composite plate when the impact response is measured with another piezoelectric sensor. The second study focuses on the defect identification algorithms of the raw hologram data consisting of the recorded oscillation modes of the affected composite plate. The main paper results obtained in both studies enable us to determine whether the composite material is characterized by mechanical defects occurring during the response to the periodic excitation. In case of damage, the observed response amplitude was decreased by 70%. Finally, using the time-domain experimental results, the frequency response functions (FRFs) are applied to damage detection assessment and to obtain extra damage information.

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“…First, the voltage measurement signal X k of the SA/SNA sensor k (k = 1, ⋯, N) is decomposed by N-level wavelet packet decomposition into 2 N frequency bands as described in the following equation [29]:…”

Section: Smartmentioning

confidence: 99%

Debonding Performance of CFRP-Strengthened Nanomaterial Concrete Beam Using Wavelet Packet Analysis

et al. 2020

Self Cite

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The carbon fiber reinforced polymer- (CFRP-) strengthened nanomaterial concrete beam (SNCB) has been increasingly attracting a widespread attention because of the advantages of using the excellent properties of nanomaterials to improve structural properties. An active sensing approach based on a piezoceramic transducer is developed to detect the interfacial debonding performance of CFRP-SNCB. A CFRP-SNCB specimen was fabricated and subjected to periodic loading test to initiate the debonding damage. Three piezoceramic smart aggregates (SAs) and three piezoceramic smart nanomaterial aggregates (SNAs) are embedded in the specimen and used as an actuator and sensor. Experiments show that the nanomaterial concrete becomes a good conduit for wave propagation due to the nucleation and filling effect of nanomaterial. The stress wave signal caused by the embedded SNAs is more sensitive to the debonding performance between CFRP and concrete than SA. The attenuation of stress wave caused by the increase of the severity of debonding damage can be clearly observed from the signals received from SAs and SNAs in the frequency domain analysis. The debonding cracking of the tension end region is earlier than the bond end region, which proves the starting point of structural debonding damage. Furthermore, the debonding state can be evaluated by wavelet packet analysis. The research results demonstrate that the proposed method has potentials to detect the interfacial debonding performance of CFRP-SNCB.

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Detecting of the Longitudinal Grouting Quality in Prestressed Curved Tendon Duct Using Piezoceramic Transducers

Cited by 12 publications

References 59 publications

Flexural Damage Diagnosis in Reinforced Concrete Beams Using a Wireless Admittance Monitoring System—Tests and Finite Element Analysis

Flexural Damage Diagnosis in Reinforced Concrete Beams Using a Wireless Admittance Monitoring System—Tests and Finite Element Analysis

Piezoelectric Transducer-Based Diagnostic System for Composite Structure Health Monitoring

Debonding Performance of CFRP-Strengthened Nanomaterial Concrete Beam Using Wavelet Packet Analysis

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