Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames

In this study, an experimental program was performed on masonry-infilled frame specimens with varied construction precision and masonry thickness. A total of five portal frame specimens, which consist of four masonry-infilled frames and a bare frame, were tested, and the results were analyzed to inv...

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Autores principales:	Minjae Kim, Eunjong Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	masonry-infilled frame effect of a gap in masonry infill wall masonry-to-frame strength ratio effect of precision on masonry construction infill–frame interaction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/19d85d589f074efcbcfaf0bd7efa84a9
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id	oai:doaj.org-article:19d85d589f074efcbcfaf0bd7efa84a9
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spelling	oai:doaj.org-article:19d85d589f074efcbcfaf0bd7efa84a92021-11-11T15:02:30ZExperimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames10.3390/app112199502076-3417https://doaj.org/article/19d85d589f074efcbcfaf0bd7efa84a92021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9950https://doaj.org/toc/2076-3417In this study, an experimental program was performed on masonry-infilled frame specimens with varied construction precision and masonry thickness. A total of five portal frame specimens, which consist of four masonry-infilled frames and a bare frame, were tested, and the results were analyzed to investigate the effects of construction precision and interaction between the masonry infill and the frame. The test results indicated that the gap in the masonry infill decreased strength by 75% to 80% and stiffness by 55% to 70%. A comparison between the measured and predicted peak strength using the current code shows that the code equations underestimate the strength by up to 70%. This is due to the fact that the contribution of friction in shear resistance of the masonry wall is actually ignored in the current code since no adequate method for estimating the normal force is provided. In addition, reflecting the observation that the failure mode of the columns changed to shear failure when thick masonry walls were used, a mechanical model that can explain the shear failure and enables the estimation of maximum strength was proposed. The maximum strengths of the specimens calculated using the proposed model were in good agreement with the experimental results.Minjae KimEunjong YuMDPI AGarticlemasonry-infilled frameeffect of a gap in masonry infill wallmasonry-to-frame strength ratioeffect of precision on masonry constructioninfill–frame interactionTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9950, p 9950 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	masonry-infilled frame effect of a gap in masonry infill wall masonry-to-frame strength ratio effect of precision on masonry construction infill–frame interaction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	masonry-infilled frame effect of a gap in masonry infill wall masonry-to-frame strength ratio effect of precision on masonry construction infill–frame interaction Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Minjae Kim Eunjong Yu Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
description	In this study, an experimental program was performed on masonry-infilled frame specimens with varied construction precision and masonry thickness. A total of five portal frame specimens, which consist of four masonry-infilled frames and a bare frame, were tested, and the results were analyzed to investigate the effects of construction precision and interaction between the masonry infill and the frame. The test results indicated that the gap in the masonry infill decreased strength by 75% to 80% and stiffness by 55% to 70%. A comparison between the measured and predicted peak strength using the current code shows that the code equations underestimate the strength by up to 70%. This is due to the fact that the contribution of friction in shear resistance of the masonry wall is actually ignored in the current code since no adequate method for estimating the normal force is provided. In addition, reflecting the observation that the failure mode of the columns changed to shear failure when thick masonry walls were used, a mechanical model that can explain the shear failure and enables the estimation of maximum strength was proposed. The maximum strengths of the specimens calculated using the proposed model were in good agreement with the experimental results.
format	article
author	Minjae Kim Eunjong Yu
author_facet	Minjae Kim Eunjong Yu
author_sort	Minjae Kim
title	Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
title_short	Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
title_full	Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
title_fullStr	Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
title_full_unstemmed	Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames
title_sort	experimental study on lateral-load-resisting capacity of masonry-infilled reinforced concrete frames
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/19d85d589f074efcbcfaf0bd7efa84a9
work_keys_str_mv	AT minjaekim experimentalstudyonlateralloadresistingcapacityofmasonryinfilledreinforcedconcreteframes AT eunjongyu experimentalstudyonlateralloadresistingcapacityofmasonryinfilledreinforcedconcreteframes
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Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames

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