Structural performance of FCS wall subjected to axial load

The primary purpose of this paper is to present the structural behavior of precast foamed concrete sandwich walls (FCS) strengthened with double steel shear connectors (DSC) subjected to axial load. The discussion of results addresses the effect of slenderness ratio (H/t) on the behavior of the wall...

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Main Authors: Mohamad, N., Goh, W. I., Abdullah, R., Samad, A. A. A., Mendis, P., Sofi, M.
Format: Article
Published: Elsevier Ltd 2017
Subjects:
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author Mohamad, N.
Goh, W. I.
Abdullah, R.
Samad, A. A. A.
Mendis, P.
Sofi, M.
author_facet Mohamad, N.
Goh, W. I.
Abdullah, R.
Samad, A. A. A.
Mendis, P.
Sofi, M.
author_sort Mohamad, N.
collection ePrints
description The primary purpose of this paper is to present the structural behavior of precast foamed concrete sandwich walls (FCS) strengthened with double steel shear connectors (DSC) subjected to axial load. The discussion of results addresses the effect of slenderness ratio (H/t) on the behavior of the walls. It also addresses the significant effects of using double shear connectors on these behaviors compared to single steel shear connector (SSC). The FCS wall was modeled using ABAQUS and validated by the results from experiment and previous research. Parametric finite element study (FEA) was conducted by simulating these walls with various H/t under axial load. The structural behavior recorded from FEA includes its ultimate load, failure mode, load-deflection profiles, strain distribution across the wall's thickness, and ultimate shear load. It was found that as H/t increased, the ultimate load decreased but the maximum horizontal deflection increased. FCS with H/t ⩽25 failed from crushes and cracks within the top and bottom area while FCS with H/t ⩾25 failed from buckling at its mid-height. It was also noticed that FCS with lower H/t experienced more uniform strain distribution across its thickness. FCS with DSC was able to sustain higher load but it deflected less compared to walls with SSC, caused by higher stiffness due to larger steel areas. It is interesting to find that FCS walls with DSC behaved in a more composite manner and was able to sustain higher ultimate shear force under push of loading test compared to FCS walls with SSC. These findings show that the FCS wall with DSC is suitable to be used as a load-bearing wall.
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spelling utm.eprints-760702018-05-30T04:17:57Z http://eprints.utm.my/76070/ Structural performance of FCS wall subjected to axial load Mohamad, N. Goh, W. I. Abdullah, R. Samad, A. A. A. Mendis, P. Sofi, M. TA Engineering (General). Civil engineering (General) The primary purpose of this paper is to present the structural behavior of precast foamed concrete sandwich walls (FCS) strengthened with double steel shear connectors (DSC) subjected to axial load. The discussion of results addresses the effect of slenderness ratio (H/t) on the behavior of the walls. It also addresses the significant effects of using double shear connectors on these behaviors compared to single steel shear connector (SSC). The FCS wall was modeled using ABAQUS and validated by the results from experiment and previous research. Parametric finite element study (FEA) was conducted by simulating these walls with various H/t under axial load. The structural behavior recorded from FEA includes its ultimate load, failure mode, load-deflection profiles, strain distribution across the wall's thickness, and ultimate shear load. It was found that as H/t increased, the ultimate load decreased but the maximum horizontal deflection increased. FCS with H/t ⩽25 failed from crushes and cracks within the top and bottom area while FCS with H/t ⩾25 failed from buckling at its mid-height. It was also noticed that FCS with lower H/t experienced more uniform strain distribution across its thickness. FCS with DSC was able to sustain higher load but it deflected less compared to walls with SSC, caused by higher stiffness due to larger steel areas. It is interesting to find that FCS walls with DSC behaved in a more composite manner and was able to sustain higher ultimate shear force under push of loading test compared to FCS walls with SSC. These findings show that the FCS wall with DSC is suitable to be used as a load-bearing wall. Elsevier Ltd 2017 Article PeerReviewed Mohamad, N. and Goh, W. I. and Abdullah, R. and Samad, A. A. A. and Mendis, P. and Sofi, M. (2017) Structural performance of FCS wall subjected to axial load. Construction and Building Materials, 134 . pp. 185-198. ISSN 0950-0618 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007342209&doi=10.1016%2fj.conbuildmat.2016.12.133&partnerID=40&md5=fa8b21fcd80593e8c8dd30fb203ce179
spellingShingle TA Engineering (General). Civil engineering (General)
Mohamad, N.
Goh, W. I.
Abdullah, R.
Samad, A. A. A.
Mendis, P.
Sofi, M.
Structural performance of FCS wall subjected to axial load
title Structural performance of FCS wall subjected to axial load
title_full Structural performance of FCS wall subjected to axial load
title_fullStr Structural performance of FCS wall subjected to axial load
title_full_unstemmed Structural performance of FCS wall subjected to axial load
title_short Structural performance of FCS wall subjected to axial load
title_sort structural performance of fcs wall subjected to axial load
topic TA Engineering (General). Civil engineering (General)
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