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Budownictwo i Inżynieria Środowiska

Budownictwo i Inżynieria Środowiska
2015.194, DOI: 10.7862/rb.2015.194

FAILURE MODES DETERMINING THE RESISTANCE AND THE STABILITY OF STEEL CELLULAR BEAMS

Krzysztof KUCHTA, Mariusz MAŚLAK

DOI: 10.7862/rb.2015.194

Abstract

Effective failure modes relating to the steel cellular beams that nowadays have
become widely used as a part of a building load-bearing structure are identified
and discussed in detail. They are presented as those being critical both due
to the structural resistance evaluation and due to the stability assessment.
In the first case, the ultimate bending moment resistance of a whole beam
in the presence of shear is estimated as well as the resistance of the beam tee section
located at mid-length of the web-opening. Regarding to the verification
of beam stability not only the lateral-torsional buckling is taken into consideration
but also the shear buckling of the beam web and even the local instability
of a web-post. Finally, the risk of the rupture of a welded joint located in a beam
web-post is assessed to check if it is so small that it can be accepted by the building
user.

Full text (pdf)

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About this Article

TITLE:
FAILURE MODES DETERMINING THE RESISTANCE AND THE STABILITY OF STEEL CELLULAR BEAMS

AUTHORS:
Krzysztof KUCHTA (1)
Mariusz MAŚLAK (2)

AUTHORS AFFILIATIONS:
(1) Politechnika Krakowska
(2) Politechnika Krakowska

JOURNAL:
Budownictwo i Inżynieria Środowiska
2015.194

KEY WORDS AND PHRASES:
cellular beams, web-openings, Vierendeel bending, lateral-torsional
buckling, web-post buckling

FULL TEXT:
http://doi.prz.edu.pl/pl/pdf/biis/416

DOI:
10.7862/rb.2015.194

URL:
http://dx.doi.org/10.7862/rb.2015.194

RECEIVED:
2015-05-26

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