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Experimental validation of dynamic based damage locating indices in RC structures

This paper presents experimental modal analysis and static load testing results to validate the accuracy of dynamic parameters-based damage locating indices in RC structures. The study investigates the accuracy of different dynamic-based damage locating indices compared to observed crack patterns fr...

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Main Authors: Fayyadh, Moatasem M., Razaka, Hashim Abdul
Format: Article
Published: Structural Engineering and Mechanics 2022
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/40777/
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spelling my.um.eprints.407772025-02-13T08:30:19Z http://eprints.um.edu.my/40777/ Experimental validation of dynamic based damage locating indices in RC structures Fayyadh, Moatasem M. Razaka, Hashim Abdul TA Engineering (General). Civil engineering (General) This paper presents experimental modal analysis and static load testing results to validate the accuracy of dynamic parameters-based damage locating indices in RC structures. The study investigates the accuracy of different dynamic-based damage locating indices compared to observed crack patterns from static load tests and how different damage levels and scenarios impact them. The damage locating indices based on mode shape curvature and mode shape fourth derivate in their original forms were found to show anomalies along the beam length and at the supports. The modified forms of these indices show higher sensitivity in locating single and multi-cracks at different damage scenarios. The proposed stiffness reduction index shows good sensitivity in detecting single and multi-cracks. The proposed anomalies elimination procedure helps to remove the anomalies along the beam length. Also, the adoption of the proposed weighting method averaging procedure and normalization procedure help to draw the overall crack pattern based on the adopted set of modes. Structural Engineering and Mechanics 2022-10 Article PeerReviewed Fayyadh, Moatasem M. and Razaka, Hashim Abdul (2022) Experimental validation of dynamic based damage locating indices in RC structures. Structural Engineering and Mechanics, 84 (2). pp. 181-206. ISSN 1225-4568, DOI https://doi.org/10.12989/sem.2022.84.2.181 <https://doi.org/10.12989/sem.2022.84.2.181>. 10.12989/sem.2022.84.2.181
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Fayyadh, Moatasem M.
Razaka, Hashim Abdul
Experimental validation of dynamic based damage locating indices in RC structures
description This paper presents experimental modal analysis and static load testing results to validate the accuracy of dynamic parameters-based damage locating indices in RC structures. The study investigates the accuracy of different dynamic-based damage locating indices compared to observed crack patterns from static load tests and how different damage levels and scenarios impact them. The damage locating indices based on mode shape curvature and mode shape fourth derivate in their original forms were found to show anomalies along the beam length and at the supports. The modified forms of these indices show higher sensitivity in locating single and multi-cracks at different damage scenarios. The proposed stiffness reduction index shows good sensitivity in detecting single and multi-cracks. The proposed anomalies elimination procedure helps to remove the anomalies along the beam length. Also, the adoption of the proposed weighting method averaging procedure and normalization procedure help to draw the overall crack pattern based on the adopted set of modes.
format Article
author Fayyadh, Moatasem M.
Razaka, Hashim Abdul
author_facet Fayyadh, Moatasem M.
Razaka, Hashim Abdul
author_sort Fayyadh, Moatasem M.
title Experimental validation of dynamic based damage locating indices in RC structures
title_short Experimental validation of dynamic based damage locating indices in RC structures
title_full Experimental validation of dynamic based damage locating indices in RC structures
title_fullStr Experimental validation of dynamic based damage locating indices in RC structures
title_full_unstemmed Experimental validation of dynamic based damage locating indices in RC structures
title_sort experimental validation of dynamic based damage locating indices in rc structures
publisher Structural Engineering and Mechanics
publishDate 2022
url http://eprints.um.edu.my/40777/
_version_ 1825160581703794688
score 13.244413

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