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Local failures of coped steel beams - A state-of-the-art review
Yam,Michael C.H.1; Fang,Cheng2; Lam,Angus C.C.3; Cheng,J. J.Roger4
Source PublicationJournal of Constructional Steel Research
AbstractCoped (notched) steel beams are widely used in steel frame structures. A state-of-the-art review on local failures of coped steel beams is presented with the main aim of providing a clear insight into the up-to-date research outcomes and design approaches on the issues of local web buckling, block shear, and fatigue. With a comprehensive review of the available research database, the rationale behind the current design treatments for these failure modes is evaluated. For the design of local web buckling for coped beams with bolted end connections, adopting the lowest value of the resistances governed by elastic local web buckling, flexural yielding, and shear yielding can be safe. A reduction factor of 0.9 on the design local web buckling resistance may be applied for the case of welded connections due to the possible interactive effect of block shear. Use of the AISC-LRFD equations is suggested for the block shear design of coped beams with single-line bolted connections, and both the AISC-LRFD and the CSA-S16-09 equations are suitable for the case of double-line bolted connections. For coped beams with welded connections, the use of a reduced U of 0.7 in the CSA-S16-09 equations is recommended. For fatigue design, use of a new category curve modified from the relevant equations in AISC-LRFD is proposed in this paper to ensure a safe and consistent design. Illustrative design examples are presented based on the recommended design methods. The expected future work is also outlined. © 2014 Elsevier Ltd.
KeywordBlock shear Coped (notched) steel beam Design Fatigue Local web buckling Review
URLView the original
Scopus ID2-s2.0-84905507692
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Cited Times [WOS]:17   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorFang,Cheng
Affiliation1.Department of Building and Real Estate, Hong Kong Polytechnic University,Hung Hom, Kowloon,Hong Kong
2.School of Civil Engineering and Geosciences, Newcastle University,New-castle upon Tyne NE1 7RU,United Kingdom
3.Department of Civil and Environmental Engineering, University of Macau,Macao
4.Department of Civil and Environmental Engineering, University of Alberta,Edmonton, AB,Canada
Recommended Citation
GB/T 7714
Yam,Michael C.H.,Fang,Cheng,Lam,Angus C.C.,et al. Local failures of coped steel beams - A state-of-the-art review[J]. Journal of Constructional Steel Research,2014,102:217-232.
APA Yam,Michael C.H.,Fang,Cheng,Lam,Angus C.C.,&Cheng,J. J.Roger.(2014).Local failures of coped steel beams - A state-of-the-art review.Journal of Constructional Steel Research,102,217-232.
MLA Yam,Michael C.H.,et al."Local failures of coped steel beams - A state-of-the-art review".Journal of Constructional Steel Research 102(2014):217-232.
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