An Embedded Tubular PZT Transducer Based Damage Imaging Method for Two-Dimensional Concrete Structures

Gao, Weihang; Huo, Linsheng; Li, Hong‐Nan; Song, Gangbing

doi:10.1109/access.2018.2843788

Cited by 35 publications

(26 citation statements)

References 50 publications

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“…Future work will mainly concentrate on experimental investigation to validate the URSP's functions in reducing the cracking in concrete slabs and to verify the numerical parametric study. With the recent development of low cost and embedded piezoceramic smart aggregates for concrete structures [56][57][58][59], the cracking inside a concrete structure can be monitored through active sensing approach [60][61][62] and the imaging approach [63][64][65][66]. The piezoceramic smart aggregate can function as an actuator to generate stress/ultrasonic waves and also as a sensor to detect the stress/ultrasonic waves.…”

Section: Recommendations For Future Workmentioning

confidence: 99%

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

et al. 2019

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Tensile stresses and cracks in concrete slabs induced by a hogging moment have always been a disadvantage of steel-concrete composite structures and key issue of concern in the design of such structures. To reduce the tensile stress and control the crack width of the reinforced concrete (RC) slab, a new type of connector, called the uplift-restricted and slip-permitted (URSP) connector has been proposed and successfully applied in the area subjected to a negative bending moment in steel-concrete composite bridges. The feasibility of the URSP connector in steel-concrete composite frame buildings is investigated in this study based on a comprehensive parametric analysis. The effects of URSP connectors on the cracking behavior, as well as the stiffness and strength of composite frames, are systematically analyzed using an elaborate finite element model, which resembles a typical composite beam-column joint subjected to both lateral loads and vertical loads. In addition, an optimized arrangement length of URSP connectors is proposed for practical design. The research findings indicate that the application of URSP connectors greatly improves the crack resistance of RC slabs without an obvious reduction of the ultimate capacity and lateral stiffness of the composite frame. It is recommended that the distribution length of URSP connectors at each beam end should be 20–25% of the frame beam length.

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Section: Recommendations For Future Workmentioning

confidence: 99%

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

et al. 2019

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“…Chalioris et al [30] experimentally evaluated an innovative portable wireless real-time SHM system for detecting earthquake damage and the structural integrity of RC members in seismically prone regions. More advanced and interesting applications of PZT sensors for SHM and damage detection can be found elsewhere [31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Structural Health Monitoring and Interface Damage Detection for Infill Reinforced Concrete Walls in Seismic Retrofit of Reinforced Concrete Frames Using Piezoceramic-Based Transducers Under the Cyclic Loading

et al. 2019

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In this work, the piezoceramic-based transducers are used to perform the structural health monitoring (SHM) and interface damage detecting of non-ductile reinforced concrete (RC) frames retrofitted by post-installed RC walls. In order to develop the post-embedded piezoceramic-based transducers that can be used to identify interface failure or cracks between two structural members in retrofit construction, this work adopts the cyclic loading to test two specimens with post-embedded piezoceramic-based transducers (PPT). Since the failure of an interface between the post-installed wall and beam occurs, one of the specimens has damage in the foundation and existing boundary column and the other has damage in the top ends of column and wall. During the cyclic loading test, one transducer was used as an actuator to generate the stress waves and the other transducers were used as the sensors to detect the waves. In damaged specimens, the existence and locations of cracks and the interface damage can be detected by analyzing the wave response. Moreover, the severity of damage to the specimens can also be estimated. The experimental results indicate the effectiveness of the piezoceramic-based approach in the SHM and locating damage in shear-critical RC structural members under the seismic loading.

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“…Among the existing researches of SHM technology based on Lamb wave and piezoelectric transducer, damage imaging algorithm is an easily interpretable and intuitive image re ecting the overall health status of the monitored structure, which has been widely studied [24,25], such as the delay-and-sum imaging method [26][27][28][29][30], ultrasonic phased array imaging method [31][32][33][34], time reversal imaging method [35][36][37][38][39], multiple signal classi cation method [40][41][42][43] and spatial-wavenumber lter imaging method [44][45][46][47]. Lu et al improved the delay-and-sum imaging method by employing the Boolean ADD operation instead of the addition or the multiplication operation, and used re ection coe cient, local maximum value based envelop-detection method, additional time shi to cancel the artifacts and increase the e cient and accuracy of defect detection [48].…”

Section: Introductionmentioning

confidence: 99%

An Aircraft Pallet Damage Monitoring Method Based on Damage Subarea Identification and Probability-Based Diagnostic Imaging

Liu

Yue

et al. 2019

Journal of Advanced Transportation

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To improve the safety and economy of aircraft pallet use, an aircraft pallet damage monitoring method based on damage subarea identification and probability-based diagnostic imaging is proposed. In the proposed method, first, the large aircraft pallet monitoring area is divided into rectangular subareas, and a piezoelectric transducer sensor is pasted on each vertex of the rectangular subarea that is used to excitation and sensing the Lamb wave. Second, the damage subarea is identified according to the diagonal damage indexes. Third, the damage position in the damage subarea is calculated using the probability-based diagnostic imaging method and coordinate probability weighted algorithm. Finally, the aircraft pallet damage can be localized based on the damage subarea position. Frequency selection and damage simulation study results show that the Lamb wave is sensitive to aircraft pallet damage whose centre frequency ranges from 50 kHz to 150 kHz, and the damage index of a steel ball is less than that of all real aircraft pallet damage from 95 kHz to 125 kHz. The verification results show that the proposed method can locate aircraft pallet damage with an error of less than 2 cm.

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An Embedded Tubular PZT Transducer Based Damage Imaging Method for Two-Dimensional Concrete Structures

Cited by 35 publications

References 50 publications

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

Structural Health Monitoring and Interface Damage Detection for Infill Reinforced Concrete Walls in Seismic Retrofit of Reinforced Concrete Frames Using Piezoceramic-Based Transducers Under the Cyclic Loading

An Aircraft Pallet Damage Monitoring Method Based on Damage Subarea Identification and Probability-Based Diagnostic Imaging

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