Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage

Understanding the bond behavior of steel rebar in concrete is important in order to determine the performance of a reinforced concrete structure. Although numerous studies have been carried out by many researchers to develop a robust model for numerical analysis, no consensus has been reached as the...

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Autores principales:	Chongku Yi, Jeeho Lee, Kee-Jeung Hong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bond-slip concrete steel rebar cyclic loading numerical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/ec75a6f4e91f4daeb65010fee134dc3b
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spelling	oai:doaj.org-article:ec75a6f4e91f4daeb65010fee134dc3b2021-11-25T18:16:12ZEffect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage10.3390/ma142270801996-1944https://doaj.org/article/ec75a6f4e91f4daeb65010fee134dc3b2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7080https://doaj.org/toc/1996-1944Understanding the bond behavior of steel rebar in concrete is important in order to determine the performance of a reinforced concrete structure. Although numerous studies have been carried out by many researchers to develop a robust model for numerical analysis, no consensus has been reached as the bond behavior depends on hysteresis. In this study, the bond behavior of a steel bar in concrete with pre-existing damage is investigated under low-level cyclic loading. Based on the experimental bond stress and slip curve, a numerical model for finite element analysis to simulate the effect of low-level cyclic loading is proposed. The results from the numerical analysis show good agreement with the experimental data, including accumulated damage on stiffness and strength throughout entire load cycles.Chongku YiJeeho LeeKee-Jeung HongMDPI AGarticlebond-slipconcretesteel rebarcyclic loadingnumerical modelTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7080, p 7080 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bond-slip concrete steel rebar cyclic loading numerical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	bond-slip concrete steel rebar cyclic loading numerical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Chongku Yi Jeeho Lee Kee-Jeung Hong Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
description	Understanding the bond behavior of steel rebar in concrete is important in order to determine the performance of a reinforced concrete structure. Although numerous studies have been carried out by many researchers to develop a robust model for numerical analysis, no consensus has been reached as the bond behavior depends on hysteresis. In this study, the bond behavior of a steel bar in concrete with pre-existing damage is investigated under low-level cyclic loading. Based on the experimental bond stress and slip curve, a numerical model for finite element analysis to simulate the effect of low-level cyclic loading is proposed. The results from the numerical analysis show good agreement with the experimental data, including accumulated damage on stiffness and strength throughout entire load cycles.
format	article
author	Chongku Yi Jeeho Lee Kee-Jeung Hong
author_facet	Chongku Yi Jeeho Lee Kee-Jeung Hong
author_sort	Chongku Yi
title	Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
title_short	Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
title_full	Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
title_fullStr	Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
title_full_unstemmed	Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage
title_sort	effect of low-level cyclic loading on bond behavior of a steel bar in concrete with pre-existing damage
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ec75a6f4e91f4daeb65010fee134dc3b
work_keys_str_mv	AT chongkuyi effectoflowlevelcyclicloadingonbondbehaviorofasteelbarinconcretewithpreexistingdamage AT jeeholee effectoflowlevelcyclicloadingonbondbehaviorofasteelbarinconcretewithpreexistingdamage AT keejeunghong effectoflowlevelcyclicloadingonbondbehaviorofasteelbarinconcretewithpreexistingdamage
_version_	1718411413410545664

Effect of Low-Level Cyclic Loading on Bond Behavior of a Steel Bar in Concrete with Pre-Existing Damage

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