Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading

The Government of Malaysia has promoted the usage of Industrial Building System (IBS) since the early 1960s. However, based on the IBS Roadmap 2003-2010 published by the Construction Industry Development Board Malaysia (CIDB), the factors contributing to the delay of IBS implementation in Malaysia a...

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Main Author:	Mohsan, Nor Maslina
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/92114/1/NorMaslinaMohsanPSKA2020.pdf.pdf
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id	my-utm-ep.92114
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spelling	my-utm-ep.921142021-08-30T04:22:48Z Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading 2020 Mohsan, Nor Maslina TA Engineering (General). Civil engineering (General) The Government of Malaysia has promoted the usage of Industrial Building System (IBS) since the early 1960s. However, based on the IBS Roadmap 2003-2010 published by the Construction Industry Development Board Malaysia (CIDB), the factors contributing to the delay of IBS implementation in Malaysia are lack of knowledge among designers and requiring more local researches and developments, technologies and support services. One of the research areas is to develop a new type of load-bearing wall system to overcome the corrosion problem of reinforcement steel in the precast concrete wall panels. The aim of this study is to develop a new type of precast load-bearing wall panel system. The proposed system involved composite cold-formed wall panel (CCFWP) which consists of concrete and cold-formed steel sections, where the steel sections act as reinforcements. The load carrying capacity and the buckling behaviour of individual wall studs, wall frames, and CCFWP were assessed and validated with the relevant code of practices, and data from previous studies. The empirical equation to estimate the load carrying capacity of CCFWP has been proposed. The structural behaviour of individual wall studs, wall frames and CCFWP were investigated using full-scale experiment. Influences of web and flange holes, wall frame arrangements, aspect ratio and slenderness ratio on load carrying capacity of individual wall studs, wall frames, and CCFWP were also studied. It was found that web and flange holes with 150 mm spacing provide adequate compressive strength for the wall studs, and Arrangement 1 with one middle stud is considered as the best arrangement of the wall frame since it yielded higher and consistent results. The increment in ultimate axial strength ratio for CCFWP is 4% when the slenderness ratio of the CCFWP increased from 6 to 13, and the increment in ultimate axial strength ratio is 7.3% when the aspect ratio increased from 1.67 to 3.33. From the validation process, the closest prediction of the ultimate axial load of CCFWP is provided by BS8110. Subsequently, the proposed empirical equation for CCFWP is modified from the empirical equation as in BS 8110 by incorporating the effect of slenderness ratio, aspect ratio, and the contribution of the cold-formed steel. 2020 Thesis http://eprints.utm.my/id/eprint/92114/ http://eprints.utm.my/id/eprint/92114/1/NorMaslinaMohsanPSKA2020.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:134434 phd doctoral Universiti Teknologi Malaysia Faculty of Engineering - School of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Mohsan, Nor Maslina Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
description	The Government of Malaysia has promoted the usage of Industrial Building System (IBS) since the early 1960s. However, based on the IBS Roadmap 2003-2010 published by the Construction Industry Development Board Malaysia (CIDB), the factors contributing to the delay of IBS implementation in Malaysia are lack of knowledge among designers and requiring more local researches and developments, technologies and support services. One of the research areas is to develop a new type of load-bearing wall system to overcome the corrosion problem of reinforcement steel in the precast concrete wall panels. The aim of this study is to develop a new type of precast load-bearing wall panel system. The proposed system involved composite cold-formed wall panel (CCFWP) which consists of concrete and cold-formed steel sections, where the steel sections act as reinforcements. The load carrying capacity and the buckling behaviour of individual wall studs, wall frames, and CCFWP were assessed and validated with the relevant code of practices, and data from previous studies. The empirical equation to estimate the load carrying capacity of CCFWP has been proposed. The structural behaviour of individual wall studs, wall frames and CCFWP were investigated using full-scale experiment. Influences of web and flange holes, wall frame arrangements, aspect ratio and slenderness ratio on load carrying capacity of individual wall studs, wall frames, and CCFWP were also studied. It was found that web and flange holes with 150 mm spacing provide adequate compressive strength for the wall studs, and Arrangement 1 with one middle stud is considered as the best arrangement of the wall frame since it yielded higher and consistent results. The increment in ultimate axial strength ratio for CCFWP is 4% when the slenderness ratio of the CCFWP increased from 6 to 13, and the increment in ultimate axial strength ratio is 7.3% when the aspect ratio increased from 1.67 to 3.33. From the validation process, the closest prediction of the ultimate axial load of CCFWP is provided by BS8110. Subsequently, the proposed empirical equation for CCFWP is modified from the empirical equation as in BS 8110 by incorporating the effect of slenderness ratio, aspect ratio, and the contribution of the cold-formed steel.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Mohsan, Nor Maslina
author_facet	Mohsan, Nor Maslina
author_sort	Mohsan, Nor Maslina
title	Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
title_short	Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
title_full	Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
title_fullStr	Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
title_full_unstemmed	Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
title_sort	structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Civil Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92114/1/NorMaslinaMohsanPSKA2020.pdf.pdf
_version_	1747818572314312704

Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading

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