Simulation of cold-formed steel beams in local and distortional buckling with applications to the direct strength method

2007 ◽  
Vol 63 (5) ◽  
pp. 581-590 ◽  
Author(s):  
Cheng Yu ◽  
Benjamin W. Schafer
Keyword(s):  
Steel Beams ◽  
Distortional Buckling ◽  
Direct Strength Method ◽  
Cold Formed Steel

scholarly journals Experimental Study and Direct Strength Method for Cold-Formed Steel Built-Up I-Sectional Columns under Axial Compression

2021 ◽  
Vol 2021 ◽  
pp. 1-22
Author(s):  
Xingyou Yao
Keyword(s):  
Finite Element ◽  
Axial Compression ◽  
Numerical Study ◽  
Experimental Results ◽  
Distortional Buckling ◽  
Cross Sectional ◽  
Direct Strength Method ◽  
Comparison Results ◽  
Cold Formed Steel ◽  
Interactive Buckling

The objective of this paper is to investigate the buckling behavior and design method of the ultimate strength for the cold-formed steel (CFS) built-up I-sectional columns under axial compression which failed in distortional buckling and interactive buckling. A total of 56 CFS built-up I-sectional columns subjected to axial compression were tested, and the different buckling modes and ultimate strengths were analyzed in detail by varying the thickness, the length, the spacing of screws, the end fastener group, and the cross-sectional dimensions of CFS built-up I-sectional columns. It was shown in the test that noticeable interaction of local and distortional buckling or interaction of local, distortional, and global buckling was observed for the built-up I-sectional columns with different lengths and cross-sectional dimensions. A finite element model (FEM) was developed and validated with experimental results. A further parametric study has been conducted including different cross sections and slenderness ratios for the built-up I-sectional columns. The load-carrying capacities obtained from the experimental and numerical study were used to investigate the feasibility of the current direct strength method (DSM) when DSM was applied to CFS built-up I-sectional columns. The comparison results showed that the current DSM is not safe for CFS built-up columns failed in distortional buckling and interactive buckling. Therefore, the improved design formulas were proposed, and their accuracy was verified by using finite element analysis (FEA) and experimental results of CFS built-up I-sectional columns subjected to axial compression.

Distortional Buckling Tests on Cold-Formed Steel Beams

2006 ◽  
Vol 132 (4) ◽  
pp. 515-528 ◽  
Author(s):  
Cheng Yu ◽  
Benjamin W. Schafer
Keyword(s):  
Steel Beams ◽  
Distortional Buckling ◽  
Cold Formed Steel

Simulation of Cold-Formed Steel Beams in Global and Distortional Buckling

2014 ◽  
Vol 633-634 ◽  
pp. 1037-1041 ◽  
Author(s):  
Nikolay Vatin ◽  
Aleksei Sinelnikov ◽  
Marsel Garifullin ◽  
Darya Trubina
Keyword(s):  
Fe Simulation ◽  
Critical Force ◽  
Steel Beams ◽  
Elastic Buckling ◽  
Distortional Buckling ◽  
Pure Bending ◽  
Buckling Modes ◽  
New Type ◽  
Cold Formed Steel ◽  
Computing Simulation

This article provides the numerical elastic buckling analysis of simply supported cold-formed lipped channels subjected to pure bending. A methodology for computing simulation of a new type of thin-walled thermo-profile (reticular-stretched) is developed. For flexural elements buckling modes and values of critical force are calculated. FE simulation evaluates the influence of web height and span on the critical load and buckling modes for cold formed beams of different lengths.

07.12: On the design of cold-formed steel beams with holes in shear using the direct strength method

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 1590-1599 ◽  
Author(s):  
Song Hong Pham ◽  
Cao Hung Pham ◽  
Gregory J. Hancock
Keyword(s):  
Steel Beams ◽  
Direct Strength Method ◽  
Cold Formed Steel

scholarly journals New distortional buckling design rules for slotted perforated cold-formed steel beams

2020 ◽  
Vol 168 ◽  
pp. 106006 ◽  
Author(s):  
Natalia Degtyareva ◽  
Perampalam Gatheeshgar ◽  
Keerthan Poologanathan ◽  
Shanmuganathan Gunalan ◽  
Konstantinos Daniel Tsavdaridis ◽  
...  
Keyword(s):  
Steel Beams ◽  
Distortional Buckling ◽  
Design Rules ◽  
Cold Formed Steel

scholarly journals Distortional buckling of perforated cold-formed steel beams subject to uniformly distributed transverse loads

2020 ◽  
Vol 148 ◽  
pp. 106569 ◽  
Author(s):  
Nan-ting Yu ◽  
Boksun Kim ◽  
Long-yuan Li ◽  
Wei-jian Hong ◽  
Wei-bin Yuan
Keyword(s):  
Steel Beams ◽  
Distortional Buckling ◽  
Transverse Loads ◽  
Cold Formed Steel
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