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Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams

TA683.5.B3 S63 2013

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Main Author: Soheil Nikpour Khoshkroudi
Format: text::Final Year Project
Language:English US
Published: 2024
Subjects:
Concrete beams
Reinforced concrete construction
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spelling my.uniten.dspace-331502024-08-04T02:06:13Z Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams Soheil Nikpour Khoshkroudi Concrete beams Reinforced concrete construction TA683.5.B3 S63 2013 A lot of reinforced concrete structures are damaged because of the many reasons and suffering from various deteriorations such as cracks, concrete spilling and deflection due to aging, corrosion of steel, earthquake, accidental impacts on the structure and environmental effects. There are two main solutions for these problems, replacing the structure or repairing the damaged structure. The cost of replacing these structures is overwhelming thus, it is necessary to find appropriate repair method in terms of low cost, fast processing time and being effective. A complete and proper repair method improves the performance of structures also will increase the stiffness and strength of old structures. Plate bonding methods using steel plates is one of the most famous repairing materials. The main weakness of this method is premature debonding at plate end. These problems can be solving by using end anchorages system. In this research behaviour of steel plate to strengthened R.C. beams and effect of U shaped end anchorages using connectors has been covered. In order to cover the objectives of this research three simply supported R.C. beams with dimension of 2300 x 250 x 125 has been casted. One of the beams is as the control beam and one beam will be strengthened by end anchored steel plate and two connectors and the last one will be strengthened by end anchored steel plate and six connectors. The size of steel plate is 1650mm x 75mm x 3mm, the size of end anchors is 125mm x 40mm x 3mm and the connector's diameter of connectors is 20mm. The test results signify that the end anchored steel plate strengthened RC, beam with six connectors had higher failure load as compare to the strengthened beam with two connectors than the control beam. In addition, both of the strengthened beams were higher in first crack load than the control beam. The strengthened beams showed less bar strain and concrete strain than control beam. Strengthened beam with two connectors showed less deflection than the control beam whereas strengthened beam with six connectors showed more deflection than the control. Finally, in this study it has been investigated that optimization and minimizing the dimension of the end anchorages could show satisfactory results in compare to the end anchorages with arbitrary dimensions of past researches. 2024-07-31T08:29:25Z 2024-07-31T08:29:25Z 2013 Resource Types::text::Final Year Project https://irepository.uniten.edu.my/handle/123456789/33150 en_US application/pdf
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language English US
topic Concrete beams
Reinforced concrete construction
spellingShingle Concrete beams
Reinforced concrete construction
Soheil Nikpour Khoshkroudi
Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
description TA683.5.B3 S63 2013
format Resource Types::text::Final Year Project
author Soheil Nikpour Khoshkroudi
author_facet Soheil Nikpour Khoshkroudi
author_sort Soheil Nikpour Khoshkroudi
title Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
title_short Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
title_full Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
title_fullStr Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
title_full_unstemmed Optimization of end anchors to eliminate premature debonding failure of flexurally strengthened R.C. beams
title_sort optimization of end anchors to eliminate premature debonding failure of flexurally strengthened r.c. beams
publishDate 2024
_version_ 1806518003349585920
score 13.214268

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