Web-post buckling behaviour of composite beams with large elliptically-based web openings

IF 4 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Journal of Constructional Steel Research Pub Date : 2025-03-14 DOI:10.1016/j.jcsr.2025.109483

Eduardo Vedovetto Santos , Felipe Piana Vendramell Ferreira , Konstantinos Daniel Tsavdaridis , Carlos Humberto Martins , R. Mark Lawson

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引用次数: 0

Abstract

Steel beams with elliptically-based web openings have shown higher global shear resistance and increased flexural stiffness compared to those with circular web openings. However, the structural behaviour of steel-concrete composite beams with elliptically-based web openings has yet to be explored. This paper aims to investigate the web-post buckling resistance of steel-concrete composite beams with elliptically-based web openings since this failure mode has become more critical than the Vierendeel mechanism is such perforated beams. A high-fidelity finite element model was developed and a parametric study with 270 models was conducted based on key geometric parameters and various loading conditions. The influence of the geometric parameters of the elliptically-based web opening was examined, and the resistances were presented on bare steel (non-composite) perforated beams in line with previous findings. A previously developed model for predicting the web-post buckling resistance was assessed. The use of the buckling curve ‘c’, as specified by SCI P355 (2011), provided more effective results. However, buckling curve ‘α’ offers better accuracy for calculating the web-post buckling resistance in composite beams with elliptically-based web openings.

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来源期刊

Journal of Constructional Steel Research 工程技术-工程：土木

CiteScore

7.90

自引率

19.50%

发文量

550

审稿时长

46 days

期刊介绍： The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.