Behaviour of cold formed steel under axial compression force

This master project describes a series of compression test performed on lipped channel columns fabricated from cold formed high tensile steel plates with nominal yield stress of 550 MPa. This test includes Lysaght C-section ranging from C10010 to C20024 with restraint length of 800 mm, 1300 mm &...

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Main Author: Tan, Hean Seong
Format: Thesis
Language:English
Published: 2008
Subjects:
Online Access:http://eprints.utm.my/9587/1/TanHeanSeongMFKA2008.pdf
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author Tan, Hean Seong
author_facet Tan, Hean Seong
author_sort Tan, Hean Seong
collection ePrints
description This master project describes a series of compression test performed on lipped channel columns fabricated from cold formed high tensile steel plates with nominal yield stress of 550 MPa. This test includes Lysaght C-section ranging from C10010 to C20024 with restraint length of 800 mm, 1300 mm & 1500 mm. Each length represents different slenderness ratios, ?1 values (L/ry) ranging from 13.28 to 24.91 and each different section represents different slenderness ratios ?2 values (D/t,B,t & B/D) ranging from 83.3 to 101.3 for D/t, 31.6 to 42.6 for B/t and 0.315 to 0.335 for B/D. The objective of this project was to study the buckling mode of cold formed singly C-section with different restraint lengths and to determine the ultimate compression capacity of the C- section with different section properties. Axial compression tests were performed on the C-section with two pinned ends connection. The pinned end connections base plate consisted of 6 mm thick plate grade G 43A (yield strength 275 N/mm²). The C-section was bolted to the base plate using 4 nos M20 diameter bolt grade 8.8. Gridlines were drawn on the specimen surface measured at 3 cm x 3 cm The cold formed C-sections have high width/thickness ratio that lead to local and distortional buckling affecting mainly member with or without edge stiffeners. The effect of width to thickness ratio increases as the local buckling and distortional buckling capacity decrease. For distortional buckling mode of failure, few parameters play an important role for a cold formed steel to fail under this mode. Among the parameters are flange length, length of lipped and web depth. Other buckling modes such as flexural and flexural-torsional buckling were also observed.
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spelling utm.eprints-95872018-07-19T01:53:08Z http://eprints.utm.my/9587/ Behaviour of cold formed steel under axial compression force Tan, Hean Seong TA Engineering (General). Civil engineering (General) This master project describes a series of compression test performed on lipped channel columns fabricated from cold formed high tensile steel plates with nominal yield stress of 550 MPa. This test includes Lysaght C-section ranging from C10010 to C20024 with restraint length of 800 mm, 1300 mm & 1500 mm. Each length represents different slenderness ratios, ?1 values (L/ry) ranging from 13.28 to 24.91 and each different section represents different slenderness ratios ?2 values (D/t,B,t & B/D) ranging from 83.3 to 101.3 for D/t, 31.6 to 42.6 for B/t and 0.315 to 0.335 for B/D. The objective of this project was to study the buckling mode of cold formed singly C-section with different restraint lengths and to determine the ultimate compression capacity of the C- section with different section properties. Axial compression tests were performed on the C-section with two pinned ends connection. The pinned end connections base plate consisted of 6 mm thick plate grade G 43A (yield strength 275 N/mm²). The C-section was bolted to the base plate using 4 nos M20 diameter bolt grade 8.8. Gridlines were drawn on the specimen surface measured at 3 cm x 3 cm The cold formed C-sections have high width/thickness ratio that lead to local and distortional buckling affecting mainly member with or without edge stiffeners. The effect of width to thickness ratio increases as the local buckling and distortional buckling capacity decrease. For distortional buckling mode of failure, few parameters play an important role for a cold formed steel to fail under this mode. Among the parameters are flange length, length of lipped and web depth. Other buckling modes such as flexural and flexural-torsional buckling were also observed. 2008-11 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/9587/1/TanHeanSeongMFKA2008.pdf Tan, Hean Seong (2008) Behaviour of cold formed steel under axial compression force. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering.
spellingShingle TA Engineering (General). Civil engineering (General)
Tan, Hean Seong
Behaviour of cold formed steel under axial compression force
title Behaviour of cold formed steel under axial compression force
title_full Behaviour of cold formed steel under axial compression force
title_fullStr Behaviour of cold formed steel under axial compression force
title_full_unstemmed Behaviour of cold formed steel under axial compression force
title_short Behaviour of cold formed steel under axial compression force
title_sort behaviour of cold formed steel under axial compression force
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/9587/1/TanHeanSeongMFKA2008.pdf
work_keys_str_mv AT tanheanseong behaviourofcoldformedsteelunderaxialcompressionforce