Elastic buckling analysis of cold-formed steel built-up sections with discrete fasteners using the compound strip method

2018 ◽  
Vol 124 ◽  
pp. 58-71 ◽  
Author(s):  
M. Abbasi ◽  
M. Khezri ◽  
K.J.R. Rasmussen ◽  
B.W. Schafer
Keyword(s):  
Buckling Analysis ◽  
Elastic Buckling ◽  
Strip Method ◽  
Cold Formed Steel

Local Buckling of Cold-Formed Steel Members with Edge Stiffened Holes

2015 ◽  
Vol 725-726 ◽  
pp. 697-702 ◽  
Author(s):  
Marsel Garifullin ◽  
Darya Trubina ◽  
Nikolai Vatin
Keyword(s):  
Local Buckling ◽  
Buckling Analysis ◽  
Numerical Results ◽  
Building Industry ◽  
Elastic Buckling ◽  
Distortional Buckling ◽  
Steel Members ◽  
Cold Formed Steel ◽  
New Generation

Cold formed steel members with edge stiffened holes are a new generation of cold formed members recently developed by the building industry. Very little research has been performed on such sections to determine their local and distortional buckling capacity. This article provides the numerical results of elastic local buckling analysis of cold-formed lipped channels with edge stiffened holes. For flexural elements values of critical buckling moments are calculated and the influence of hole spacing and diameter on elastic buckling capacity is determined.

07.20: Application of the compound strip method in buckling analysis of cold-formed steel built-up sections

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 1667-1676 ◽  
Author(s):  
Mani Khezri ◽  
Mandana Abbasi ◽  
Kim J. R. Rasmussen
Keyword(s):  
Buckling Analysis ◽  
Strip Method ◽  
Cold Formed Steel

scholarly journals Constrained Finite Strip Method with Rigid Corner Element for the Buckling Analysis of Thin-Walled Members with Rounded Corners

2019 ◽  
Author(s):  
Zoltán Beregszászi ◽  
Sándor Ádány
Keyword(s):  
Buckling Analysis ◽  
Structural Members ◽  
Distortional Buckling ◽  
Modal Decomposition ◽  
Buckling Mode ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Cold Formed Steel ◽  
Thin Walled

In this paper modal decomposition of the deformations of thin-walled structural members are discussed. Modal decomposition is a process which separates the characteristic behavior modes. If applied in buckling analysis, modal decomposition makes it possible to analyze pure global or pure distortional buckling or pure local-plate buckling. Ability to calculate critical loads to a pure buckling mode is highly useful in the design of thin-walled structural members, such as cold-formed steel beams or columns. Cold-formed steel profiles are always produced with rounded corners, and earlier studies showed that the now-used modal decomposition techniques of the constrained finite element method and generalized beam theory fail to lead to reasonable results if the rounded corners are directly modelled in the analysis. An extension to the constrained finite strip method is proposed and discussed. The proposal introduces rigid corner elements, which make it possible to perform the modal decomposition by the same process used for members with sharp corners, even if the rounded corners are directly modelled. The formulation of the proposal is summarized, then the rigid-corner approach is studied by an extended parametric study.

Sign in / Sign up

Export Citation Format

Share Document