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Carla Cristiane Silva https://orcid.org/0000-0001-5339-059X Rodrigo Barreto Caldas https://orcid.org/0000-0002-0851-7632 Ricardo Hallal Fakury https://orcid.org/0000-0002-1884-5699 Hermes Carvalho https://orcid.org/0000-0002-4652-8068 João Victor Fragoso Dias https://orcid.org/0000-0003-1455-1519

Abstract

Continuous composite beams may suffer a global instability know as lateral distortional buckling (LDB). The design code EN 1994-1-1:2004 provides a procedure for the verification of this ultimate limit state, in which the resistant bending moment to LDB is calculated considering the behavior of the inverted “U-frame” mechanism. An essential parameter for the determination of this moment is the rotational stiffness of the composite beam, which depends on the web stiffness. The EN 1994-1-1:2004 procedure is restricted to composite beams with solid-web steel sections without openings. This paper presents several numerical analyses of the web rotational stiffness of castellated sections such as Anglo-saxon, Litzka and Peiner typology. Finally, based on numerical results obtained, a calculation procedure for determination of this stiffness was proposed.

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Section
SI: Structural Integrity and Safety: Experimental and Numerical Perspectives

How to Cite

Silva, C. C., Caldas, R. B., Fakury, R. H., Carvalho, H. and Dias, J. V. F. (2019) “Web Rotational Stiffness of Continuous Steel-Concrete Composite Castellated Beams”, Frattura ed Integrità Strutturale, 13(50), pp. 264-275. doi: 10.3221/IGF-ESIS.50.22.

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