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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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spelling my.utm.921142021-08-30T04:22:48Z http://eprints.utm.my/id/eprint/92114/ Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading 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 NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/92114/1/NorMaslinaMohsanPSKA2020.pdf.pdf Mohsan, Nor Maslina (2020) Structural behaviour of concrete filled cold-formed steel channel wall panel under axial loading. PhD thesis, Universiti Teknologi Malaysia. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:134434
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
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
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
publishDate 2020
url http://eprints.utm.my/id/eprint/92114/1/NorMaslinaMohsanPSKA2020.pdf.pdf
http://eprints.utm.my/id/eprint/92114/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:134434
_version_ 1709667385698418688
score 13.211869

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