Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets

The objective of the presented study is to examine the effects of glass fiber reinforced polymer (GFRP) composite as rehabilitation systems on the fatigue performance of reinforced concrete beams. Experiments were conducted on beams with and without GFRP composite sheets on their tensile surfaces....

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Main Author: Wissam K. A. Al-Saraj
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2007-09-01
Series:Journal of Engineering and Sustainable Development
Subjects:
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Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1715
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author Wissam K. A. Al-Saraj
author_facet Wissam K. A. Al-Saraj
author_sort Wissam K. A. Al-Saraj
collection DOAJ
description The objective of the presented study is to examine the effects of glass fiber reinforced polymer (GFRP) composite as rehabilitation systems on the fatigue performance of reinforced concrete beams. Experiments were conducted on beams with and without GFRP composite sheets on their tensile surfaces. The specimens were 152 X 152 X 1,321 mm reinforced concrete beams with enough transverse reinforcement to avoid shear failure. The results of this study indicate that the fatigue life of reinforced concrete beams with the given geometry, subjected to the same cycling load, can be significantly extended through the use of externally bonded GFRP composite sheets. An interesting finding is that, although the fiber strengthening system increases the fatigue life of the beams, the failure mechanism, and fatigue of the steel reinforcement, remains the same in both strengthened and non strengthened beams. Thus, it is possible to predict the fatigue life of a cyclically loaded beam using existing fatigue models.
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spelling doaj.art-d3679b767c0444459dcd57520d7c638b2022-12-22T03:35:35ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252007-09-01112Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP SheetsWissam K. A. Al-Saraj0Civil Engineering Department, College of Engineering, Al-Mustansiriya University, Baghdad, Iraq The objective of the presented study is to examine the effects of glass fiber reinforced polymer (GFRP) composite as rehabilitation systems on the fatigue performance of reinforced concrete beams. Experiments were conducted on beams with and without GFRP composite sheets on their tensile surfaces. The specimens were 152 X 152 X 1,321 mm reinforced concrete beams with enough transverse reinforcement to avoid shear failure. The results of this study indicate that the fatigue life of reinforced concrete beams with the given geometry, subjected to the same cycling load, can be significantly extended through the use of externally bonded GFRP composite sheets. An interesting finding is that, although the fiber strengthening system increases the fatigue life of the beams, the failure mechanism, and fatigue of the steel reinforcement, remains the same in both strengthened and non strengthened beams. Thus, it is possible to predict the fatigue life of a cyclically loaded beam using existing fatigue models. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1715.
spellingShingle Wissam K. A. Al-Saraj
Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
Journal of Engineering and Sustainable Development
.
title Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
title_full Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
title_fullStr Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
title_full_unstemmed Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
title_short Fatigue Behavior of Reinforced Concrete Beams Strengthened With GFRP Sheets
title_sort fatigue behavior of reinforced concrete beams strengthened with gfrp sheets
topic .
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1715
work_keys_str_mv AT wissamkaalsaraj fatiguebehaviorofreinforcedconcretebeamsstrengthenedwithgfrpsheets