Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members

The current code specifies a minimum torsional reinforcement ratio to prevent possible brittle failure after torsional cracking in concrete members. However, since there are many researches, in which even the concrete members with the minimum torsional reinforcement fail to secure sufficient reserve...

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Main Authors: Hyunjin Ju, Sun-Jin Han, Dichuan Zhang, Jong Kim, Wei Wu, Kang Su Kim
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2019/4595363
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author Hyunjin Ju
Sun-Jin Han
Dichuan Zhang
Jong Kim
Wei Wu
Kang Su Kim
author_facet Hyunjin Ju
Sun-Jin Han
Dichuan Zhang
Jong Kim
Wei Wu
Kang Su Kim
author_sort Hyunjin Ju
collection DOAJ
description The current code specifies a minimum torsional reinforcement ratio to prevent possible brittle failure after torsional cracking in concrete members. However, since there are many researches, in which even the concrete members with the minimum torsional reinforcement fail to secure sufficient reserved strength after torsional cracking, continuous research needs to be carried out. Accordingly, in the authors’ previous research, a minimum torsional reinforcement ratio was proposed based on the reserved strength concept and was extended to the steel fiber-reinforced concrete members in order to suggest the minimum fiber factor as the minimum torsional reinforcement ratio. In the present study, a pure torsion test was carried out on reinforced concrete and steel fiber-reinforced concrete members after a brief introduction on the above, and the proposed model was verified based on the test results. The test results of six torsional specimens were compared with those of the proposed model, and it was found that the proposed model provides a reasonable evaluation on the torsional failure mode of the specimen according to the reserved strength ratio.
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institution Kabale University
issn 1687-8434
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language English
publishDate 2019-01-01
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spelling doaj-art-ef8c6ce82306484fafca9c3629d46dcb2025-02-03T01:10:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/45953634595363Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete MembersHyunjin Ju0Sun-Jin Han1Dichuan Zhang2Jong Kim3Wei Wu4Kang Su Kim5Post-Doctoral Research Fellow, Department of Civil Engineering and Natural Hazards, University of Natural Resources and Life Sciences, Feistmantelstrasse 4, 1180 Vienna, AustriaPh.D. Candidate, Department of Architectural Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, Republic of KoreaAssistant Professor, Department of Civil and Environmental Engineering, School of Engineering, Nazarbayev University, 53 Kabanbay Batyr Ave., Astana 010000, KazakhstanProfessor, Department of Civil and Environmental Engineering, School of Engineering, Nazarbayev University, 53 Kabanbay Batyr Ave., Astana 010000, KazakhstanProfessor, Department of Civil Engineering and Natural Hazards, University of Natural Resources and Life Sciences, Feistmantelstrasse 4, 1180 Vienna, AustriaProfessor, Department of Architectural Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, Republic of KoreaThe current code specifies a minimum torsional reinforcement ratio to prevent possible brittle failure after torsional cracking in concrete members. However, since there are many researches, in which even the concrete members with the minimum torsional reinforcement fail to secure sufficient reserved strength after torsional cracking, continuous research needs to be carried out. Accordingly, in the authors’ previous research, a minimum torsional reinforcement ratio was proposed based on the reserved strength concept and was extended to the steel fiber-reinforced concrete members in order to suggest the minimum fiber factor as the minimum torsional reinforcement ratio. In the present study, a pure torsion test was carried out on reinforced concrete and steel fiber-reinforced concrete members after a brief introduction on the above, and the proposed model was verified based on the test results. The test results of six torsional specimens were compared with those of the proposed model, and it was found that the proposed model provides a reasonable evaluation on the torsional failure mode of the specimen according to the reserved strength ratio.http://dx.doi.org/10.1155/2019/4595363
spellingShingle Hyunjin Ju
Sun-Jin Han
Dichuan Zhang
Jong Kim
Wei Wu
Kang Su Kim
Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
Advances in Materials Science and Engineering
title Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
title_full Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
title_fullStr Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
title_full_unstemmed Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
title_short Estimation of Minimum Torsional Reinforcement of Reinforced Concrete and Steel Fiber-Reinforced Concrete Members
title_sort estimation of minimum torsional reinforcement of reinforced concrete and steel fiber reinforced concrete members
url http://dx.doi.org/10.1155/2019/4595363
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