Local buckling behavior of double-coped steel beams

Cheng Fang; Michael Yam; V. P. Iu; K. F. Chung

doi:10.14455/ISEC.res.2014.10

Local buckling behavior of double-coped steel beams

Cheng Fang, Michael Yam, V. P. Iu, K. F. Chung

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

Abstract

Local web buckling is one of the most common failure modes for coped steel beams. While several studies have been undertaken focusing on the behavior of top-flange/single-coped beams, double-coped beams have received little attention. To fill this knowledge gap, this paper presents experimental and numerical studies on local web buckling behavior of double-coped steel beams. Five full-scale tests were conducted, and the main test parameters were cope length and cope depth. Local web buckling was observed as the main failure mode for all of the five specimens, and the buckling resistance was found to decrease with increasing cope length and cope depth. A FE study was subsequently conducted, where the response of the FE models agreed well with the test results, especially in terms of buckling mode and buckling resistance. The test and FE results were compared with those predicted by an existing design approach. The design results were found to be quite conservative, and hence further investigation may be required to achieve a more accurate design approach.

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Proceedings of International Structural Engineering and Construction
Volume	1
Issue number	1
DOIs	https://doi.org/10.14455/ISEC.res.2014.10
Publication status	Published - 2014
Event	2nd Australasia and South East Asia Conference on Structural Engineering and Construction, ASEA-SEC-2 2014 - Bangkok, Thailand Duration: 3 Nov 2014 → 7 Nov 2014

Keywords

Deflection
Design
Failure mode
FE analysis
Local web buckling
Test

ASJC Scopus subject areas

Building and Construction
Architecture
Civil and Structural Engineering
Safety, Risk, Reliability and Quality

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10.14455/ISEC.res.2014.10

Cite this

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title = "Local buckling behavior of double-coped steel beams",

abstract = "Local web buckling is one of the most common failure modes for coped steel beams. While several studies have been undertaken focusing on the behavior of top-flange/single-coped beams, double-coped beams have received little attention. To fill this knowledge gap, this paper presents experimental and numerical studies on local web buckling behavior of double-coped steel beams. Five full-scale tests were conducted, and the main test parameters were cope length and cope depth. Local web buckling was observed as the main failure mode for all of the five specimens, and the buckling resistance was found to decrease with increasing cope length and cope depth. A FE study was subsequently conducted, where the response of the FE models agreed well with the test results, especially in terms of buckling mode and buckling resistance. The test and FE results were compared with those predicted by an existing design approach. The design results were found to be quite conservative, and hence further investigation may be required to achieve a more accurate design approach.",

keywords = "Deflection, Design, Failure mode, FE analysis, Local web buckling, Test",

author = "Cheng Fang and Michael Yam and Iu, {V. P.} and Chung, {K. F.}",

note = "Funding Information: The work described in this paper was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. PolyU 5288/13E). The assistance of Mr. Yang Zhang, Mr. Kun Wang, and Mr. K. M. Tou in conducting the tests is also acknowledged. Publisher Copyright: {\textcopyright} 2014 ISEC Press.; 2nd Australasia and South East Asia Conference on Structural Engineering and Construction, ASEA-SEC-2 2014 ; Conference date: 03-11-2014 Through 07-11-2014",

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PY - 2014

Y1 - 2014

N2 - Local web buckling is one of the most common failure modes for coped steel beams. While several studies have been undertaken focusing on the behavior of top-flange/single-coped beams, double-coped beams have received little attention. To fill this knowledge gap, this paper presents experimental and numerical studies on local web buckling behavior of double-coped steel beams. Five full-scale tests were conducted, and the main test parameters were cope length and cope depth. Local web buckling was observed as the main failure mode for all of the five specimens, and the buckling resistance was found to decrease with increasing cope length and cope depth. A FE study was subsequently conducted, where the response of the FE models agreed well with the test results, especially in terms of buckling mode and buckling resistance. The test and FE results were compared with those predicted by an existing design approach. The design results were found to be quite conservative, and hence further investigation may be required to achieve a more accurate design approach.

AB - Local web buckling is one of the most common failure modes for coped steel beams. While several studies have been undertaken focusing on the behavior of top-flange/single-coped beams, double-coped beams have received little attention. To fill this knowledge gap, this paper presents experimental and numerical studies on local web buckling behavior of double-coped steel beams. Five full-scale tests were conducted, and the main test parameters were cope length and cope depth. Local web buckling was observed as the main failure mode for all of the five specimens, and the buckling resistance was found to decrease with increasing cope length and cope depth. A FE study was subsequently conducted, where the response of the FE models agreed well with the test results, especially in terms of buckling mode and buckling resistance. The test and FE results were compared with those predicted by an existing design approach. The design results were found to be quite conservative, and hence further investigation may be required to achieve a more accurate design approach.

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KW - Failure mode

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KW - Test

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ER -

Local buckling behavior of double-coped steel beams

Abstract

Keywords

ASJC Scopus subject areas

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