Cold-formed steel built-up compression members with longitudinal stiffeners

2014 ◽  
Author(s):  
Jiahui Zhang
Keyword(s):  
Compression Members ◽  
Longitudinal Stiffeners ◽  
Cold Formed Steel

Behaviour of cold-formed steel built-up I-section columns composed of four U-profiles

2018 ◽  
Vol 22 (3) ◽  
pp. 613-625 ◽  
Author(s):  
M Anbarasu ◽  
M Venkatesan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Ultimate Strength ◽  
Element Model ◽  
Cross Sectional ◽  
Direct Strength Method ◽  
The North ◽  
Compression Members ◽  
Cross Sectional Dimension ◽  
Cold Formed Steel

This work reports numerical results concerning the cold-formed steel built-up I-section columns composed of four U-profiles under axial compression. A finite element model is developed by using the software program ABAQUS. The developed model includes geometric, material nonlinearities and geometric imperfections. The finite element model was verified against the experimental results reported in the cold-formed steel built-up open section columns. In the parametric study, the sections are analysed with several cross-sectional dimension ratios and lengths, in order to assess their influence on the buckling behaviour and ultimate strength of cold-formed steel built-up I-section columns. After presenting and discussing the numerical parametric results, the article shows that the current direct strength method in the North American Specification for cold-formed steel compression members design curve fails to predict adequately the ultimate strength of some of the columns analysed and addresses the modification proposed on current direct strength method curves, providing improved predictions of all the numerical ultimate strength available. The proposed method is also assessed by reliability analysis.

Design of cold-formed steel unequal angle compression members

2007 ◽  
Vol 45 (3) ◽  
pp. 330-338 ◽  
Author(s):  
Ben Young ◽  
Ehab Ellobody
Keyword(s):  
Compression Members ◽  
Cold Formed Steel

scholarly journals Development of Cold Formed Steel – Timber Composite for Roof Structures: Compression Members

2015 ◽  
Vol 125 ◽  
pp. 850-856 ◽  
Author(s):  
Ali Awaludin ◽  
Kundari Rachmawati ◽  
Made Aryati ◽  
Anindha Dyah Danastri
Keyword(s):  
Compression Members ◽  
Cold Formed Steel

scholarly journals Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

2021 ◽  
Keyword(s):  
Steel Structures ◽  
Strength Prediction ◽  
Ultimate Capacity ◽  
Specific Design ◽  
Design Strength ◽  
Heavy Load ◽  
Compression Members ◽  
Cold Formed Steel ◽  
Hot Rolled ◽  
Hot Rolled Steel

Abstract. Cold-formed Steel (CFS), a sort of steel weighing lesser, suits to be a wise choice of material in the construction of steel structures. It has more benefits that indeed make CFS get famous. Effortless installation can be accomplished with the CFS. It also renders a factor that only a few materials show, that is, longevity. Corrosion does not affect the CFS. Employing under moderate loads, CFS finds to be economically feasible when compared with hot-rolled steel. It can be used as compression members comprising single or built-up members. Since a single member cannot sustain the heavy load, the built-up members can be utilized. Open and closed sections are the two sorts of built-up profiles and these profiles show diverse buckling characteristics. This paper lays out a clear outline of the research works done on providing design recommendations to the codes by employing diverse built-up sections. It is reviewed by categorizing the investigated research works based on the kind of CFS sections chosen by each researcher. It was evident from the study that after validation, many researchers have done parametric study on CFS built-up columns to assess the accuracy of the design strength prediction by code specifications. Many codes failed to estimate the section’s ultimate capacity accurately as there are no specific design equations.

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