Crack damage detection of reinforced concrete beams using local stiffness indicator

This paper described the application of the generalized solution for transverse vibration to detect crack damages in reinforced concrete beams. A single crack was induced in a full-scale reinforced concrete beam by application of a point load. The load was increased in stages to obtain different cra...

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Main Authors:	Ismail, Z., A. Z. C., Ong, Abdul Ghaffar, Abdul Rahman
Format:	Article
Language:	English
Published:	Academic Journals 2011
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/1/Crack%20damage%20detection%20of%20reinforced%20concrete%20beams%20using%20local%20stiffness%20indicator.pdf

id	ump-24787
recordtype	eprints
spelling	ump-247872019-06-12T04:10:39Z http://umpir.ump.edu.my/id/eprint/24787/ Crack damage detection of reinforced concrete beams using local stiffness indicator Ismail, Z. A. Z. C., Ong Abdul Ghaffar, Abdul Rahman TJ Mechanical engineering and machinery This paper described the application of the generalized solution for transverse vibration to detect crack damages in reinforced concrete beams. A single crack was induced in a full-scale reinforced concrete beam by application of a point load. The load was increased in stages to obtain different crack heights to represent the extent and severity of the defect. Experimental modal analysis was performed on the beam prior to application of the load and after each load stage. The mode shape equation for the beams was obtained by using nonlinear regression. Global flexural stiffness was derived by utilizing the regressed variable  into the equation for transverse vibration of a Bernoulli-Euler prismatic beam. Local flexural stiffness at each coordinate point was derived by substituting the regressed data at that point and by using the centered-finite-divided-difference formula. The global stiffness decreased with increased severity of the crack in the beam. The results were compared with values computed using the secant modulus from the load-deflection plot obtained upon loading at each load stage and the trend was similar. The proposed algorithm could form the basis of a technique for structural health monitoring of load induced damaged reinforced concrete structures. Academic Journals 2011 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/24787/1/Crack%20damage%20detection%20of%20reinforced%20concrete%20beams%20using%20local%20stiffness%20indicator.pdf Ismail, Z. and A. Z. C., Ong and Abdul Ghaffar, Abdul Rahman (2011) Crack damage detection of reinforced concrete beams using local stiffness indicator. Scientific Research and Essays, 6 (34). pp. 6798-6803. ISSN 1992-2248 https://academicjournals.org/journal/SRE/article-abstract/FA6AB5625769 https://doi.org/10.5897/SRE11.040
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ismail, Z. A. Z. C., Ong Abdul Ghaffar, Abdul Rahman Crack damage detection of reinforced concrete beams using local stiffness indicator
description	This paper described the application of the generalized solution for transverse vibration to detect crack damages in reinforced concrete beams. A single crack was induced in a full-scale reinforced concrete beam by application of a point load. The load was increased in stages to obtain different crack heights to represent the extent and severity of the defect. Experimental modal analysis was performed on the beam prior to application of the load and after each load stage. The mode shape equation for the beams was obtained by using nonlinear regression. Global flexural stiffness was derived by utilizing the regressed variable  into the equation for transverse vibration of a Bernoulli-Euler prismatic beam. Local flexural stiffness at each coordinate point was derived by substituting the regressed data at that point and by using the centered-finite-divided-difference formula. The global stiffness decreased with increased severity of the crack in the beam. The results were compared with values computed using the secant modulus from the load-deflection plot obtained upon loading at each load stage and the trend was similar. The proposed algorithm could form the basis of a technique for structural health monitoring of load induced damaged reinforced concrete structures.
format	Article
author	Ismail, Z. A. Z. C., Ong Abdul Ghaffar, Abdul Rahman
author_facet	Ismail, Z. A. Z. C., Ong Abdul Ghaffar, Abdul Rahman
author_sort	Ismail, Z.
title	Crack damage detection of reinforced concrete beams using local stiffness indicator
title_short	Crack damage detection of reinforced concrete beams using local stiffness indicator
title_full	Crack damage detection of reinforced concrete beams using local stiffness indicator
title_fullStr	Crack damage detection of reinforced concrete beams using local stiffness indicator
title_full_unstemmed	Crack damage detection of reinforced concrete beams using local stiffness indicator
title_sort	crack damage detection of reinforced concrete beams using local stiffness indicator
publisher	Academic Journals
publishDate	2011
url	http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/ http://umpir.ump.edu.my/id/eprint/24787/1/Crack%20damage%20detection%20of%20reinforced%20concrete%20beams%20using%20local%20stiffness%20indicator.pdf
first_indexed	2023-09-18T22:37:43Z
last_indexed	2023-09-18T22:37:43Z
_version_	1777416707556507648

Crack damage detection of reinforced concrete beams using local stiffness indicator

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