Behaviour of Cold Formed Steel Built-Up Channel Columns Strengthened Using CFRP

Sivakumar Naganathan, H. G.Nahushananda Chakravarthy, Noor Amalina Anuar, Sreedhar Kalavagunta, Kamal Nasharuddin Bin Mustapha

Research output: Contribution to journalArticle

Abstract

This paper presents experimental findings of carbon fibre reinforced polymer (CFRP) strengthened cold-formed steel built-up channels subjected to axial load. In order to sensitively detect the buckling strengths and failure modes, twenty-four built-up columns were tested in which twelve columns were unadorned and another twelve columns were strengthened using CFRP sheets. The columns were tested for ultimate load, lateral displacement and failure modes. Tension coupon tests were conducted to determine the material properties of test specimens. The experimental results were compared with the design load calculated according to AISI S100-16 specification and are found to be in good agreement. It is established that the use of CFRP for strengthening increases the ultimate load and delays the buckling.

Original languageEnglish
JournalInternational Journal of Steel Structures
DOIs
Publication statusAccepted/In press - 01 Jan 2019

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Carbon fibers
Failure modes
Buckling
Steel
Polymers
Axial loads
Materials properties
Specifications

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

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title = "Behaviour of Cold Formed Steel Built-Up Channel Columns Strengthened Using CFRP",
abstract = "This paper presents experimental findings of carbon fibre reinforced polymer (CFRP) strengthened cold-formed steel built-up channels subjected to axial load. In order to sensitively detect the buckling strengths and failure modes, twenty-four built-up columns were tested in which twelve columns were unadorned and another twelve columns were strengthened using CFRP sheets. The columns were tested for ultimate load, lateral displacement and failure modes. Tension coupon tests were conducted to determine the material properties of test specimens. The experimental results were compared with the design load calculated according to AISI S100-16 specification and are found to be in good agreement. It is established that the use of CFRP for strengthening increases the ultimate load and delays the buckling.",
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Behaviour of Cold Formed Steel Built-Up Channel Columns Strengthened Using CFRP. / Naganathan, Sivakumar; Chakravarthy, H. G.Nahushananda; Anuar, Noor Amalina; Kalavagunta, Sreedhar; Mustapha, Kamal Nasharuddin Bin.

In: International Journal of Steel Structures, 01.01.2019.

Research output: Contribution to journalArticle

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AU - Naganathan, Sivakumar

AU - Chakravarthy, H. G.Nahushananda

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AU - Kalavagunta, Sreedhar

AU - Mustapha, Kamal Nasharuddin Bin

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