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Structural Assessment, Vibration Mitigation and Monitoring of Civil Structures

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (15 December 2022) | Viewed by 9881

Special Issue Editor

Construction Engineering and Management (CEM), University of Twente, Enschede, The Netherlands
Interests: structural dynamics; wind engineering; earthquake engineering

Special Issue Information

Dear Colleagues,

There is a need for resilience infrastructure and sustainable cities. Infrastructures cannot be resilient if poorly maintained. Therefore, it is deemed important to diagnose the condition of the infrastructure. This will help us to understand the level of functionality and improve it. In recent decades, different materials and devices have been developed to increase the performances of the structures. Several methods have been developed for structural health monitoring (SHM) and system identification in particular. Reliable data are essential in developing a life-cycle plan for current and future operations that incorporates sustainability and resiliency considerations. This Special Issue aims to collect papers on recent advancements in SHM and solutions for modifying structural integrity, as well as papers on the use of artificial intelligence (AI) for SHM of structures. Further, recent developments in optimization and robust analysis of vibration mitigation methods are of interest in this Special Issue. Topics include but are not limited to the use of sensors for SHM, vision-based SHM, validation of SHM techniques, case studies of SHM of infrastructures (buildings, bridges, tunnels, pipelines, etc.), vibration mitigation of structures, vulnerability analysis of structures, model-based structural service life prediction methods, etc.

Dr. Said Elias
Guest Editor

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Keywords

  • SHM
  • VB-SHM vibration mitigation vulnerability analysis service life prediction

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Published Papers (2 papers)

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Research

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27 pages, 18909 KiB  
Article
A Damage Detection Approach for Axially Loaded Beam-like Structures Based on Gaussian Mixture Model
by Francescantonio Lucà, Stefano Manzoni, Francesco Cerutti and Alfredo Cigada
Sensors 2022, 22(21), 8336; https://doi.org/10.3390/s22218336 - 30 Oct 2022
Cited by 7 | Viewed by 2224
Abstract
Axially loaded beam-like structures represent a challenging case study for unsupervised learning vibration-based damage detection. Under real environmental and operational conditions, changes in axial load cause changes in the characteristics of the dynamic response that are significantly greater than those due to damage [...] Read more.
Axially loaded beam-like structures represent a challenging case study for unsupervised learning vibration-based damage detection. Under real environmental and operational conditions, changes in axial load cause changes in the characteristics of the dynamic response that are significantly greater than those due to damage at an early stage. In previous works, the authors proposed the adoption of a multivariate damage feature composed of eigenfrequencies of multiple vibration modes. Successful results were obtained by framing the problem of damage detection as that of unsupervised outlier detection, adopting the well-known Mahalanobis squared distance (MSD) to define an effective damage index. Starting from these promising results, a novel approach based on unsupervised learning data clustering is proposed in this work, which increases the sensitivity to damage and significantly reduces the uncertainty associated with the results, allowing for earlier damage detection. The novel approach, which is based on Gaussian mixture model, is compared with the benchmark one based on the MSD, under the effects of an uncontrolled environment and, most importantly, in the presence of real damage due to corrosion. Full article
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Review

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28 pages, 10325 KiB  
Review
Review of Vibration Control Strategies of High-Rise Buildings
by Mohamed Hechmi El Ouni, Mahdi Abdeddaim, Said Elias and Nabil Ben Kahla
Sensors 2022, 22(21), 8581; https://doi.org/10.3390/s22218581 - 7 Nov 2022
Cited by 19 | Viewed by 6898
Abstract
Since the early ages of human existence on Earth, humans have fought against natural hazards for survival. Over time, the most dangerous hazards humanity has faced are earthquakes and strong winds. Since then and till nowadays, the challenges are ongoing to construct higher [...] Read more.
Since the early ages of human existence on Earth, humans have fought against natural hazards for survival. Over time, the most dangerous hazards humanity has faced are earthquakes and strong winds. Since then and till nowadays, the challenges are ongoing to construct higher buildings that can withstand the forces of nature. This paper is a detailed review of various vibration control strategies used to enhance the dynamical response of high-rise buildings. Hence, different control strategies studied and used in civil engineering are presented with illustrations of real applications if existing. The main aim of this review paper is to provide a reference-rich document for all the contributors to the vibration control of structures. This paper will clarify the applicability of specific control strategies for high-rise buildings. It is worth noting that not all the studied and investigated methods are applicable to high-rise buildings; a few of them remain limited by many parameters such as cost-effectiveness and engineering-wise installation and maintenance. Full article
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