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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2008
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my-utm-ep.95872018-07-19T01:53:08Z Behaviour of cold formed steel under axial compression force 2008-11 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 http://eprints.utm.my/id/eprint/9587/ http://eprints.utm.my/id/eprint/9587/1/TanHeanSeongMFKA2008.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering 1. British Standard: Design of Cold Formed Steel BS 5950: Part 5-1997 2. Design of Cold formed Steel Using Australian Standard by GJ Hancock 3. Journal paper ‘Compression Test of High Strength Steel Channel Columns’ by Demao Yang & G.J Hancock: Publisher Science Direct 4. Journal paper ‘Distortional Buckling of Cold Formed Steel Columns’ by B.W Schafer 5. Journal paper ‘Channel Columns Undergoing Local, Distortional & Overall Buckling’ by Ben Young & Jintang Yan 6. Journal paper ‘Resistance of C profile Cold Formed Compression Members: Test & Standard’ by G.Jakab & L.Dunai 7. Journal paper ‘Review: The Direct Strength Method of Cold Formed Steel Member Design’ by B.W Schafer 8. Journal paper ‘Analysis & Design Reliability of Axially Compressed Members with High’ by Yuan Qi Li, Zu Yan Shen,Lei 9. Journal paper ‘Strength Cold Formed Thin Walled Steel’ by Wang,Yan Min Wang 10. Journal paper ‘Design of Slender Angle Section Beam Columns by Direct Strength Method’ by Kim Rasmussen, M Shamim 11. Journal paper ‘Local Plate & Distortional Post Buckling Behaviour of Cold Formed Steel’ by Nuno Silvestre, Dinar Camotim 12. Journal paper ‘Lipped Channel Columns with Intermediate Stiffeners’ by Kim Rasmussen, M Shamim 13. Journal paper ‘Compression Strength of Unstiffened Elements in Cold Reduced High Strength Steel’ by J.Ye & K.Rassmussen 14. Journal paper ‘Thin Walled Column Considering Local, Distortional & Euler Buckling’ by B.W Schafer 15. Journal paper ‘Performance of Stiffenned & Unstiffened Column Under Compression’ by Sheikh,Kassas |
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Universiti Teknologi Malaysia |
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UTM Institutional Repository |
| language |
English |
| topic |
TA Engineering (General) Civil engineering (General) |
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TA Engineering (General) Civil engineering (General) Tan, Hean Seong Behaviour of cold formed steel under axial compression force |
| 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. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Tan, Hean Seong |
| author_facet |
Tan, Hean Seong |
| author_sort |
Tan, Hean Seong |
| title |
Behaviour of cold formed steel under axial compression force |
| title_short |
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_sort |
behaviour of cold formed steel under axial compression force |
| granting_institution |
Universiti Teknologi Malaysia, Faculty of Civil Engineering |
| granting_department |
Faculty of Civil Engineering |
| publishDate |
2008 |
| url |
http://eprints.utm.my/id/eprint/9587/1/TanHeanSeongMFKA2008.pdf |
| _version_ |
1747814764388548608 |