Effect of high-cyclic loads on dynamic response of reinforced concrete slabs

Bridge reinforced concrete deck slabs are often subjected to various cyclic loadings—making regular checks for fatigue damage necessary. Several experiments on reinforced concrete structures were conducted to evaluate its mechanical fatigue behaviour. Nevertheless, adequate experimental investigati...

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Main Authors: Adiza, Jamadin, Zainah, Ibrahim, Mohd Zamin, Jumaat, Ezahtul Shahreen, Ab Wahab
Format: Article
Language:English
Published: Korean Society of Civil Engineers 2019
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/28467/
http://umpir.ump.edu.my/id/eprint/28467/1/Effect%20of%20high-cyclic%20loads%20on%20dynamic%20response%20of%20reinforced%20.pdf
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author Adiza, Jamadin
Zainah, Ibrahim
Mohd Zamin, Jumaat
Ezahtul Shahreen, Ab Wahab
author_facet Adiza, Jamadin
Zainah, Ibrahim
Mohd Zamin, Jumaat
Ezahtul Shahreen, Ab Wahab
author_sort Adiza, Jamadin
building UMP Institutional Repository
collection Online Access
description Bridge reinforced concrete deck slabs are often subjected to various cyclic loadings—making regular checks for fatigue damage necessary. Several experiments on reinforced concrete structures were conducted to evaluate its mechanical fatigue behaviour. Nevertheless, adequate experimental investigations on its dynamic properties are still needed. This paper reports on the test performed on three identical reinforced concrete slabs, with different cyclic load number and after the cycles, the load was increased up to the static failure. Modal testing was performed after each step of loading to assess their dynamic performance using modal parameters (natural frequencies, mode shapes and damping ratios). Finite element model was used to predict the natural frequency of the reinforced concrete slabs and their reliability was checked through model updating. The results showed the intensity of fatigued structures causes significant changes to the modal parameters and structural loading capacity. The study explores how fatigued structure can be assessed from dynamic performance, and also can be quantified through its structural stiffness, ultimately offering a better way of using non-destructive modal testing in identifying its structural health as compared to conventional testing techniques.
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publisher Korean Society of Civil Engineers
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spelling ump-284672021-02-26T03:03:25Z http://umpir.ump.edu.my/id/eprint/28467/ Effect of high-cyclic loads on dynamic response of reinforced concrete slabs Adiza, Jamadin Zainah, Ibrahim Mohd Zamin, Jumaat Ezahtul Shahreen, Ab Wahab TA Engineering (General). Civil engineering (General) Bridge reinforced concrete deck slabs are often subjected to various cyclic loadings—making regular checks for fatigue damage necessary. Several experiments on reinforced concrete structures were conducted to evaluate its mechanical fatigue behaviour. Nevertheless, adequate experimental investigations on its dynamic properties are still needed. This paper reports on the test performed on three identical reinforced concrete slabs, with different cyclic load number and after the cycles, the load was increased up to the static failure. Modal testing was performed after each step of loading to assess their dynamic performance using modal parameters (natural frequencies, mode shapes and damping ratios). Finite element model was used to predict the natural frequency of the reinforced concrete slabs and their reliability was checked through model updating. The results showed the intensity of fatigued structures causes significant changes to the modal parameters and structural loading capacity. The study explores how fatigued structure can be assessed from dynamic performance, and also can be quantified through its structural stiffness, ultimately offering a better way of using non-destructive modal testing in identifying its structural health as compared to conventional testing techniques. Korean Society of Civil Engineers 2019-03-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28467/1/Effect%20of%20high-cyclic%20loads%20on%20dynamic%20response%20of%20reinforced%20.pdf Adiza, Jamadin and Zainah, Ibrahim and Mohd Zamin, Jumaat and Ezahtul Shahreen, Ab Wahab (2019) Effect of high-cyclic loads on dynamic response of reinforced concrete slabs. KSCE Journal of Civil Engineering, 23 (3). pp. 1293-1301. ISSN 1226-7988 (Print); 1976-3808 (Online). (Published) https://doi.org/10.1007/s12205-019-0889-1 https://doi.org/10.1007/s12205-019-0889-1
spellingShingle TA Engineering (General). Civil engineering (General)
Adiza, Jamadin
Zainah, Ibrahim
Mohd Zamin, Jumaat
Ezahtul Shahreen, Ab Wahab
Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title_full Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title_fullStr Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title_full_unstemmed Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title_short Effect of high-cyclic loads on dynamic response of reinforced concrete slabs
title_sort effect of high-cyclic loads on dynamic response of reinforced concrete slabs
topic TA Engineering (General). Civil engineering (General)
url http://umpir.ump.edu.my/id/eprint/28467/
http://umpir.ump.edu.my/id/eprint/28467/
http://umpir.ump.edu.my/id/eprint/28467/
http://umpir.ump.edu.my/id/eprint/28467/1/Effect%20of%20high-cyclic%20loads%20on%20dynamic%20response%20of%20reinforced%20.pdf