Strength behaviour of column studs in prefabricated wall panels using cold-formed steel

Strength behaviour of column studs in prefabricated wall panels using cold-formed steel

A full-scale experimental study on the strength behaviour of individual studs and column studs in a prefabricated wall panel is presented in this report. The individual stud and the panel are made of cold-formed steel sections with a dimension of 3 m height, and 3.15 m height and 1.5 m width respect...

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Main Author: Jaffar, Siti Rahayu
Format: Thesis
Language:English
Published: 2010
Subjects:
TA Engineering (General)
Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/11230/1/SitiRahayuJaffarMFKA2010.pdf
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id my-utm-ep.11230
record_format uketd_dc
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
Jaffar, Siti Rahayu
Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
description A full-scale experimental study on the strength behaviour of individual studs and column studs in a prefabricated wall panel is presented in this report. The individual stud and the panel are made of cold-formed steel sections with a dimension of 3 m height, and 3.15 m height and 1.5 m width respectively. At the moment, the British Code has not provided adequate detail design to account the load capacity of a cold-formed steel column stud in a prefabricated wall panel. The structural performances of column stud therefore need to be obtained through the experimental investigation. A total of five specimens were tested in pure axial compression until failure. The specimens consist of three specimens with one type of lipped C-channel designated here as S350CT1, S350CT2 and S350CT3, one specimen of I-section, D350CT1 and one specimen of wall panel, W350CT1. Comparison between experimental values for column stud in the wall panel and experimental values for the individual studs were made. Experimental values for the individual studs were also compared with the theoretical values computed based on BS 5950-Part 5:1998 Code of practice. All individual studs which were subjected to pure axial compression, except the S350CT1, failed due to flexural buckling (FB) mode, with a substantial visible permanent deformation and without significant torsional buckling. S350CT1 failed due to shearing of the bolts in the bolted connection. From the investigation, it can be concluded that the selection of section geometries affect the failure stress capacity of individual studs dramatically. All individual stud failure loads obtained experimentally are in good agreement with the predicted values. As for the prefabricated wall panel, it was found that a flexural buckling and local buckling had occurred in the wall panel as the wall panel reaching the failure, and subsequently the ultimate load.
format Thesis
qualification_level Master's degree
author Jaffar, Siti Rahayu
author_facet Jaffar, Siti Rahayu
author_sort Jaffar, Siti Rahayu
title Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
title_short Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
title_full Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
title_fullStr Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
title_full_unstemmed Strength behaviour of column studs in prefabricated wall panels using cold-formed steel
title_sort strength behaviour of column studs in prefabricated wall panels using cold-formed steel
granting_institution Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department Faculty of Civil Engineering
publishDate 2010
url http://eprints.utm.my/id/eprint/11230/1/SitiRahayuJaffarMFKA2010.pdf
_version_ 1747814828866535424
spelling my-utm-ep.112302018-05-30T02:34:59Z Strength behaviour of column studs in prefabricated wall panels using cold-formed steel 2010-04 Jaffar, Siti Rahayu TA Engineering (General). Civil engineering (General) A full-scale experimental study on the strength behaviour of individual studs and column studs in a prefabricated wall panel is presented in this report. The individual stud and the panel are made of cold-formed steel sections with a dimension of 3 m height, and 3.15 m height and 1.5 m width respectively. At the moment, the British Code has not provided adequate detail design to account the load capacity of a cold-formed steel column stud in a prefabricated wall panel. The structural performances of column stud therefore need to be obtained through the experimental investigation. A total of five specimens were tested in pure axial compression until failure. The specimens consist of three specimens with one type of lipped C-channel designated here as S350CT1, S350CT2 and S350CT3, one specimen of I-section, D350CT1 and one specimen of wall panel, W350CT1. Comparison between experimental values for column stud in the wall panel and experimental values for the individual studs were made. Experimental values for the individual studs were also compared with the theoretical values computed based on BS 5950-Part 5:1998 Code of practice. All individual studs which were subjected to pure axial compression, except the S350CT1, failed due to flexural buckling (FB) mode, with a substantial visible permanent deformation and without significant torsional buckling. S350CT1 failed due to shearing of the bolts in the bolted connection. From the investigation, it can be concluded that the selection of section geometries affect the failure stress capacity of individual studs dramatically. All individual stud failure loads obtained experimentally are in good agreement with the predicted values. As for the prefabricated wall panel, it was found that a flexural buckling and local buckling had occurred in the wall panel as the wall panel reaching the failure, and subsequently the ultimate load. 2010-04 Thesis http://eprints.utm.my/id/eprint/11230/ http://eprints.utm.my/id/eprint/11230/1/SitiRahayuJaffarMFKA2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering 1. Stephen Emmitt and Christopher A. Gorse (2005). Barry’s Introduction to Construction of Buildings. Oxford: Blackwell Pub. 2. R. Barry (1998). The Construction of Buildings. (3rd ed.). London, Oxford: Collins, Blackwell. 3. Nicolas S. Y. Yeung, Albert P. C. Chan and Daniel W. M. Chan (2002). Application of Prefabrication in Construction- A New Research Agenda for Reform by CII-HK. 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Lu and C.Y. Barlow (2004). An Experimental Study on the Axial Behaviour of Cold-Formed Steel Wall Studs and Panels. Journal of Thin-Walled Structures. 42, 557–573. 15. Wei-Wen Yu (2000). Cold-Formed Steel Design. (3rd ed.). New York: John Wiley and Sons. 16. L.H. Martin, J.A. Purkiss (2007). Structural Design of Steelwork to E' 1993 and E' 1994. (3rd ed.). Amsterdam: Elsevier. 17. K. F. Chung (1993). Building Design using Cold-Formed Steel Sections Worked Examples to BS 5950: Part 5: 1987. (SCI Publication P125). Berkshire: The Steel Construction Institute. 18. Tan Hean Seong (2008). Behaviour of Cold-Formed Steel under Axial Compression Force. Master. Universiti Teknologi Malaysia, Skudai. 19. Ng Zee Sum (2006). Performance of Stainless Steel Purlin in Bending. Master. Universiti Teknologi Malaysia, Skudai.

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