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Numerical Investigation on Structural Behaviour of Cold Formed Steel Double Channel Hat Section with Two Plates

Rooba N, D. Amali

Abstract


CFS Sheet can exhibit strength up to 20% greater than that of hot rolled steel, which makes it more suitable for use in high-stress applications.

Section made by combining two or more rolled sections, joined together at intervals are known as Built-up sections. Built-up steel beams composed of cold-formed sections are increasingly used in buildings because of their ability to support large spans.

 Better surface finishes-Parts and products made from cold rolled steel generally have a smooth and shiny surface that is free of rust and scale. Cold -formed steel members have thinner elements, resulting in peculiar failure modes such as local and distortional buckling, which are not common in hot rolled members.

The work aimed to numerically investigate the built up beam which is Double channel{DC} hat section with two plates one at top and rest at bottom. The  section dimension is 90X90x2-2400mm.( DC – BXDXT-Length.

The numerical procedure was developed using ABAQUS software and verified by validating with experimental results. The dimensions of the specimens were selected based on Euro Code specifications (EN 1993-1-3(2006).


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References


ABAQUS(2013). Dassault systems simulia corp , ABAQUS standarduser’s Manual version 6.13. USA.

AISI – S100:2012 North American specification for the design of cold-formed steel structural members specification , Washington , DC,USA, (2007).

European committee for standardization (CEN).(2006). Design of steelstructures , part 1.3 : General rules – supplementary rules for cold-formed members and sheeting . EN 1993-1-3: 2006,Eurocode 3,Brussels , Belgium.

Stone, T.A., and LaBoube , R.A.(2005).Behaviour of cold-formed steel built-up Isection . Thin-walled struct.,43(12), 1805-1817.

Schafer , B.W.(2007). Review: The Direct Strength method of cold-formed steel member design. Journal of constructional steel research 64(2008)766-778.


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