EXPERIMENT OF HIGH STRENGTH COLD-FORMED THIN-WALLED STEEL AXIAL COMPRESSED COLUMNS AND ANALYSES OF ITS BEARING CAPACITY BY DIRECT STRENGTH METHOD

He Baokang; Jiang Lu; Liu Yanjun; Zhou Tianhua; Wang Yanmin

doi:10.13204/j.gyjz200808019

Volume 38 Issue 8

Dec. 2014

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He Baokang, Jiang Lu, Liu Yanjun, Zhou Tianhua, Wang Yanmin. EXPERIMENT OF HIGH STRENGTH COLD-FORMED THIN-WALLED STEEL AXIAL COMPRESSED COLUMNS AND ANALYSES OF ITS BEARING CAPACITY BY DIRECT STRENGTH METHOD[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(8): 73-77. doi: 10.13204/j.gyjz200808019

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EXPERIMENT OF HIGH STRENGTH COLD-FORMED THIN-WALLED STEEL AXIAL COMPRESSED COLUMNS AND ANALYSES OF ITS BEARING CAPACITY BY DIRECT STRENGTH METHOD

doi: 10.13204/j.gyjz200808019

1.
1. Xi’an University of Architecture and Technology Xi’an 710055;
2.
2. Changan University Xi’an 710061;
3.
3. Bluescope Steel Building Shanghai 201613

Received Date: 2007-10-20
Publish Date: 2008-08-20

Abstract

Abstract

The experimental results of 62 specimens with 550 MPa high strength cold-formed thin-wall steel under axial compression are analyzed by direct strength method(DSM).The bearing capacities of high strength cold-formed thin-walled steel columns under axial compression are calculated by reduced yield strength 0.85f_y and revised slenderness ratio _c=0.85f_y/235 for the stability coefficient from the stability coefficient table of Q235 in Technical Code for Cold-Formed Thin Walled Section Steel Stucture(GB 50018-2002).The calculated results by the suggested method are closed well to the test results.
- cold-formed high strength steel,
- columns experiment,
- direct strength method,
- local buckling,
- overall buckling

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References(9)

References

[2] Yang Deman,Hancock G J.Compression Tests of Cold-Reduced High Strength Steel Sections:l-Stub Columns.Journal of Structural Engineering,2004,130(11):1 772-1 781

CB 50018-2002 冷弯薄壁型钢结构技术规范

[3] Schafer B,Pekoz T.Laterally Braced Cold-Formed Steel Flexurat Members with Edge Stiffened Elements.Journal of Structural Engineering,ASCE,1999,125(2):118-127

[4] Hancock G J,Murray T M,Ellifritt D S,et at.Cold-Formed Steel Structures to the AISI Specification.Marcel Dekker,New York:2001

[5] Design of Cold-Formed Steel Structural Members Using the Direct Strength Method.Appendix 1 of NAS 2004.American Iron and Steel Institute,Canadian Standards Association,2004

[6] 周天华,周绪红,何保康,等.G550级高强薄板钢材的材性及应用.建筑科学与工程学报,2005,22(2):43-46

[7] Schafer B W.Elastic Buckling Analysis of Thin-Walled Members by Finite Strip Analysis.CUFSM v2.6,2002

[8] 张中权.冷弯薄壁型钢轴心受压构件的稳定性.建筑结构学报,1991(2):72-79

[9] 沈祖炎,李元齐,王磊,等.屈服强度550 MPa高强冷弯薄壁型钢轴心受压构件可靠度分析.建筑结构学报,2006,27(3):26-33

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