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Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars
Shear strength is a widely investigated parameter for reinforced concrete structures. The corrosion of reinforcement results in shear strength reduction. Corrosion has become one of the main deterioration factors in reinforced concrete beam. This paper proposes a shear strength model for beams with...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480138/ https://www.ncbi.nlm.nih.gov/pubmed/30934745 http://dx.doi.org/10.3390/ma12071014 |
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author | Ma, Yafei Lu, Baoyong Guo, Zhongzhao Wang, Lei Chen, Hailong Zhang, Jianren |
author_facet | Ma, Yafei Lu, Baoyong Guo, Zhongzhao Wang, Lei Chen, Hailong Zhang, Jianren |
author_sort | Ma, Yafei |
collection | PubMed |
description | Shear strength is a widely investigated parameter for reinforced concrete structures. The corrosion of reinforcement results in shear strength reduction. Corrosion has become one of the main deterioration factors in reinforced concrete beam. This paper proposes a shear strength model for beams with inclined bars based on a limit equilibrium method. The proposed model can be applied to both corroded and uncorroded reinforced concrete beams. Besides the tensile strength of longitudinal steel bars, the shear capacity provided by the concrete on the top of the diagonal crack, the tensile force of the shear steel at the diagonal crack, the degradation of the cross-sectional area and strength of the reinforcements induced by corrosion are all considered. An experimental work on two groups accelerated corroded beams was performed. Good agreements were found between the proposed theoretical predictions and experimental observations. |
format | Online Article Text |
id | pubmed-6480138 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64801382019-04-29 Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars Ma, Yafei Lu, Baoyong Guo, Zhongzhao Wang, Lei Chen, Hailong Zhang, Jianren Materials (Basel) Article Shear strength is a widely investigated parameter for reinforced concrete structures. The corrosion of reinforcement results in shear strength reduction. Corrosion has become one of the main deterioration factors in reinforced concrete beam. This paper proposes a shear strength model for beams with inclined bars based on a limit equilibrium method. The proposed model can be applied to both corroded and uncorroded reinforced concrete beams. Besides the tensile strength of longitudinal steel bars, the shear capacity provided by the concrete on the top of the diagonal crack, the tensile force of the shear steel at the diagonal crack, the degradation of the cross-sectional area and strength of the reinforcements induced by corrosion are all considered. An experimental work on two groups accelerated corroded beams was performed. Good agreements were found between the proposed theoretical predictions and experimental observations. MDPI 2019-03-27 /pmc/articles/PMC6480138/ /pubmed/30934745 http://dx.doi.org/10.3390/ma12071014 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ma, Yafei Lu, Baoyong Guo, Zhongzhao Wang, Lei Chen, Hailong Zhang, Jianren Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title | Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title_full | Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title_fullStr | Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title_full_unstemmed | Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title_short | Limit Equilibrium Method-based Shear Strength Prediction for Corroded Reinforced Concrete Beam with Inclined Bars |
title_sort | limit equilibrium method-based shear strength prediction for corroded reinforced concrete beam with inclined bars |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480138/ https://www.ncbi.nlm.nih.gov/pubmed/30934745 http://dx.doi.org/10.3390/ma12071014 |
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