Review on the new development of vibration-based damage identification for civil engineering structures: 2010–2019

Hou, Rongrong; Xia, Yong

doi:10.1016/j.jsv.2020.115741

Cited by 381 publications

(164 citation statements)

References 280 publications

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“…Structural damage detection is the main purpose of SHM. Although numerous damage detection algorithms have been developed during past decades, 54,55 they are mainly applied to numerical examples or laboratory models because the damaged full-scale structures are not installed with SHM systems. The present footbridge provided a rare opportunity to detect the damage as a part of the bridge deck was fired early morning on November 11, 2019, because of social unrest in Hong Kong.…”

Section: Case Study-damage Assessmentmentioning

confidence: 99%

System design and demonstration of performance monitoring of a butterfly‐shaped arch footbridge

Xia

et al. 2021

Struct Control Health Monit

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This paper presents an overview of the structural performance monitoring system for a butterfly-shaped arch footbridge located at The Hong Kong Polytechnic University. The system is the product of a multidisciplinary academic collaboration of the pooling expertise of four academic departments, namely, structural engineering, traffic engineering, surveying, and optical communication engineering. This system consists of 88 sensors of 13 types, including an advanced Brillouin optical time-domain analysis technology, an optical fiber Bragg grating technology, a global navigation satellite system (GNSS), and high-performance video cameras. The paper summarizes the modular design, subsystem framework, and advanced features of the monitoring system. Preliminary monitoring results, such as high spatial resolution distributed temperature/strain measurement, global heat-transfer analysis, pedestrian traffic analysis, dynamic characteristics, and GNSS measurements, are introduced. A fire accident is employed to demonstrate the function and value of the monitoring system and provided a rare opportunity to detect damages in a real structure. The monitoring system not only monitors the performance of the bridge in real-time but also provides a multifunctional platform, including an Internet-based software for research and teaching and a touchscreen visualization platform for public education. K E Y W O R D Sfiber optic sensing, footbridge, GNSS, multifunctional platform, pedestrian traffic analysis, structural health monitoring | INTRODUCTIONLarge-scale civil engineering and infrastructure projects, such as buildings, bridges, dams, wind turbines, and pipeline systems, are exposed to extreme natural or human-made hazards, such as typhoons, strong earthquakes, and ship/ vehicle collisions. Structural health monitoring (SHM) technologies [1][2][3][4] have been developed to measure various loads and responses, evaluate the structural condition, and ensure the safety and serviceability of the structures during their service lifetime. 5,6 Long-term SHM systems have been successfully applied to full-scale bridges, including cable-stayed bridges, 7-9 suspension bridges, 10,11 truss bridges, 12,13 and arch bridges. 14,15 For example, a wind and structural monitoring system with

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Section: Case Study-damage Assessmentmentioning

confidence: 99%

System design and demonstration of performance monitoring of a butterfly‐shaped arch footbridge

Xia

et al. 2021

Struct Control Health Monit

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“…The research was carried out using vibrations and their further processing. Vibration-based methods belong to the most popular and widely used damage detection techniques for decades [18][19][20][21] and they are still intensively developed [22]. Many researchers use modal analysis as a diagnostic tool (e.g., [23][24][25][26][27][28][29][30]).…”

Section: Introductionmentioning

confidence: 99%

Non-Destructive Diagnostics of Concrete Beams Strengthened with Steel Plates Using Modal Analysis and Wavelet Transform

2021

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Externally bonded reinforcements are commonly and widely used in civil engineering objects made of concrete to increase the structure load capacity or to minimize the negative effects of long-term operation and possible defects. The quality of adhesive bonding between a strengthened structure and steel or composite elements is essential for effective reinforcement; therefore, there is a need for non-destructive diagnostics of adhesive joints. The aim of this paper is the detection of debonding defects in adhesive joints between concrete beams and steel plates using the modal analysis approach. The inspection was based on modal shapes and their further processing with the use of continuous wavelet transform (CWT) for precise debonding localization and imaging. The influence of the number of wavelet vanishing moments and the mode shape interpolation on damage imaging maps was studied. The results showed that the integrated modal analysis and wavelet transform could be successfully applied to determine the exact shape and position of the debonding in the adhesive joints of composite beams.

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“…Damages or cracks appearing in a structure will inevitably reduce its serviceability and might lead to serious accidence if the deteriorations would not be early detected and repaired. Therefore, there are a lot of studies devoted to developing efficient techniques for structural damage detection and major results obtained in the last decade were reviewed in [1]. Recently, smart material such as piezoelectric one has found widespread application in structural health monitoring and repair [2].…”

Section: Introductionmentioning

confidence: 99%

Static repair of multiple cracked beam using piezoelectric patches

Hai¹

2021

Vietnam J. Mech.

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This paper addresses the problem of repairing multiple cracked beams subjected to static load using piezoelectric patches. First, the problem is formulated and solved analytically for the case of two cracks that results in ratio of restoring moments produced by employed piezoelectric patches. Since the ratio is dependent only on crack positions but not their depth, the result obtained for case of two cracks has been extended for the case of multiple cracks. This proposition is then validated by finite element simulation where repairing piezoelectric patches are replaced by mechanical moment load equivalent to the restoring bending moments produced by the piezoelectric patches. The excellent agreement between analytical solution and numerical simulation results in case of single and double cracks allows making a conclusion that a piezoelectric patch could productively repair a cracked beam by producing a restoring moment due to its piezoelectricity. Thus, the problem of repairing multiple cracked beam using piezoelectric patches is solved.

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Review on the new development of vibration-based damage identification for civil engineering structures: 2010–2019

Cited by 381 publications

References 280 publications

System design and demonstration of performance monitoring of a butterfly‐shaped arch footbridge

System design and demonstration of performance monitoring of a butterfly‐shaped arch footbridge

Non-Destructive Diagnostics of Concrete Beams Strengthened with Steel Plates Using Modal Analysis and Wavelet Transform

Static repair of multiple cracked beam using piezoelectric patches

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