Direct Strength Method to Predict the Resistance of Cold-Formed Steel Columns against Local-Distortional Interactive Failure

2012 ◽  
Author(s):  
P.B. Dinis ◽  
D. Camotim
Keyword(s):  
Steel Columns ◽  
Direct Strength Method ◽  
Cold Formed Steel

scholarly journals Design of Built-Up Cold-Formed Steel Columns According to the Direct Strength Method

2012 ◽  
Vol 40 ◽  
pp. 119-124 ◽  
Author(s):  
I. Georgieva ◽  
L. Schueremans ◽  
L. Vandewalle ◽  
L. Pyl
Keyword(s):  
Steel Columns ◽  
Direct Strength Method ◽  
Cold Formed Steel

scholarly journals Compression Test on Cold-Formed Steel Built-Up Back-to-Back Channels Stub Columns

2011 ◽  
Vol 201-203 ◽  
pp. 2900-2903 ◽  
Author(s):  
Chui Huon Tina Ting ◽  
Hieng Ho Lau
Keyword(s):  
Compression Test ◽  
Failure Modes ◽  
Local Buckling ◽  
Effective Width ◽  
Test Results ◽  
Direct Strength Method ◽  
Cold Formed Steel ◽  
Stub Column ◽  
Hot Rolled ◽  
Stub Columns

Built-up sections are used to resist load induced in a structure when a single section is not sufficient to carry the design load for example roof trusses. In current North American Specification, the provision has been substantially taken from research in hot-rolled built-up members connected with bolts or welds [1]. The aim of this paper is to investigate on built-up back-to-back channels stub columns experimentally and theoretically using Effective Width Method and Direct Strength Method. Compression test was performed on 5 lipped channel and 5 back-to-back channels stub columns fabricated from cold-formed steel sheets of 1.2mm thicknesses. The test results indicated that local buckling is the dominant failure modes of stub columns. Therefore, Effective Width Method predicts the capacity of stub columns compared to Direct Strength Method. When compared to the average test results, results based on EWM are 5% higher while results based on DSM are 12% higher for stub column.

Local–Distortional Interaction in Cold-formed Steel Columns: Mechanics, Testing, Numerical Simulation and Design

Structures ◽  
2015 ◽  
Vol 4 ◽  
pp. 38-57 ◽  
Author(s):  
André Dias Martins ◽  
Dinar Camotim ◽  
Pedro Borges Dinis ◽  
Ben Young
Keyword(s):  
Numerical Simulation ◽  
Steel Columns ◽  
Cold Formed Steel
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