Web buckling of lightsteel beams strengthened with CFRP subjected to end-bearing forces

X. L. Zhao; R. Al-Mahaidi

doi:10.1016/j.tws.2008.10.009

Web buckling of lightsteel beams strengthened with CFRP subjected to end-bearing forces

X. L. Zhao, R. Al-Mahaidi

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

The web-crippling failure becomes critical at the loading points or supports of beams where concentrated bearing forces are applied. This paper presents the test results on CFRP-stiffened lightsteel beam (LSB) under end-bearing loads. A series of laboratory tests were conducted. Three types of strengthening methods were used; applying CFRP plates on the outer side or inner side or both sides of the web. It was found that the CFRP strengthening significantly increases the web-buckling capacity especially for those with large web depth-to-thickness ratio. Simple models are proposed to predict the improved performance due to CFRP strengthening.

Original language	English
Pages (from-to)	1029-1036
Number of pages	8
Journal	Thin-Walled Structures
Volume	47
Issue number	10
DOIs	https://doi.org/10.1016/j.tws.2008.10.009
Publication status	Published - Oct 2009
Externally published	Yes

Keywords

Bearing capacity
CFRP
Lightsteel beam
Web buckling

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanical Engineering

More information

10.1016/j.tws.2008.10.009

Cite this

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title = "Web buckling of lightsteel beams strengthened with CFRP subjected to end-bearing forces",

abstract = "The web-crippling failure becomes critical at the loading points or supports of beams where concentrated bearing forces are applied. This paper presents the test results on CFRP-stiffened lightsteel beam (LSB) under end-bearing loads. A series of laboratory tests were conducted. Three types of strengthening methods were used; applying CFRP plates on the outer side or inner side or both sides of the web. It was found that the CFRP strengthening significantly increases the web-buckling capacity especially for those with large web depth-to-thickness ratio. Simple models are proposed to predict the improved performance due to CFRP strengthening.",

keywords = "Bearing capacity, CFRP, Lightsteel beam, Web buckling",

author = "Zhao, {X. L.} and R. Al-Mahaidi",

note = "Funding Information: The authors gratefully acknowledge the financial support provided by the Australian Research Council. Thanks are also due to Mr. Kevin Nievaart and the late laboratory manager Mr. Graeme Rundle for their assistance in conducting the experimental work. Part of the testing was conducted by a final year student, Mr. Ian Tang, at Monash University. The authors would like to thank Smorgon Steel Tube Mills, Australia for providing LSB samples.",

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AU - Al-Mahaidi, R.

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N2 - The web-crippling failure becomes critical at the loading points or supports of beams where concentrated bearing forces are applied. This paper presents the test results on CFRP-stiffened lightsteel beam (LSB) under end-bearing loads. A series of laboratory tests were conducted. Three types of strengthening methods were used; applying CFRP plates on the outer side or inner side or both sides of the web. It was found that the CFRP strengthening significantly increases the web-buckling capacity especially for those with large web depth-to-thickness ratio. Simple models are proposed to predict the improved performance due to CFRP strengthening.

AB - The web-crippling failure becomes critical at the loading points or supports of beams where concentrated bearing forces are applied. This paper presents the test results on CFRP-stiffened lightsteel beam (LSB) under end-bearing loads. A series of laboratory tests were conducted. Three types of strengthening methods were used; applying CFRP plates on the outer side or inner side or both sides of the web. It was found that the CFRP strengthening significantly increases the web-buckling capacity especially for those with large web depth-to-thickness ratio. Simple models are proposed to predict the improved performance due to CFRP strengthening.

KW - Bearing capacity

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KW - Web buckling

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Web buckling of lightsteel beams strengthened with CFRP subjected to end-bearing forces

Abstract

Keywords

ASJC Scopus subject areas

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