Vision-Based Vibration Monitoring of Structures and Infrastructures: An Overview of Recent Applications

Abstract

Contactless structural monitoring has in recent years seen a growing number of applications in civil engineering. Indeed, the elimination of physical installations of sensors is very attractive, especially for structures that might not be easily or safely accessible, yet requiring the experimental evaluation of their conditions, for example following extreme events such as strong earthquakes, explosions, and floods. Among contactless technologies, vision-based monitoring is possibly the solution that has attracted most of the interest of civil engineers, given that the advantages of contactless monitoring can be potentially obtained thorough simple and low-cost consumer-grade instrumentations. The objective of this review article is to provide an introductory discussion of the latest applications of vision-based vibration monitoring of structures and infrastructures through an overview of the results achieved in full-scale field tests, as documented in the published technical literature. In this way, engineers new to vision-based monitoring and stakeholders interested in the possibilities of contactless monitoring in civil engineering could have an outline of up-to-date achievements to support a first evaluation of the feasibility and convenience for future monitoring tasks.

First Results of Long-Term Monitoring of Portico Varano in the Camerino Ducal Palace (Italy)

“…Besides, imagebased monitoring, e.g. [15], is being evaluated to possibly complement contact sensors.…”

Performance of Camera-Based Vibration Monitoring Systems in Input-Output Modal Identification Using Shaker Excitation

“…Camera-based optical motion capture systems (MCS) have been widely used in the vibration monitoring of civil engineering structures in the last few decades due to their non-contact measurement capabilities [1]. The rapid development of camera-based MCS is best reflected in the number of review studies on the subject which contain a wealth of information related to recent advances in technology, methodology, applications, challenges and frontiers [2][3][4][5][6][7][8]. The typical application of camera-based MCS involves the measurement of structural responses to ambient or imposed loading at one spatial location at the time [8][9][10][11][12][13].…”

Eigenfrequency-Based Bayesian Approach for Damage Identification in Catenary Poles

“…Inspection practices lead to an increase in the operational life span of structures, which has a significant economic impact, especially in the case of infrastructure systems [3]. Non-destructive, vibration-based inspection practices work well for identifying global deterioration in structures, which makes it one of the promising methods in civil engineering, principally in the field of damage diagnosis [4][5][6][7].…”