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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/25935

Title: Efficient re-design of continuous concrete-steel composite beams
Authors: Al-Shuwaili, Mohammed A.
Palmeri, Alessandro
Lombardo, Mariateresa
Keywords: Composite beams
Plastic design
Hogging moment,
Sagging moment
Continuous beams
Issue Date: 2017
Citation: AL-SHUWAILI, M.A., PALMERI, A. and LOMBARDO, M., 2017. Efficient re-design of continuous concrete-steel composite beams. Presented at the International Postgraduate Research Conference 2017 (IPGRC 2017), Salford University, Salford, 14-15th Sept.
Abstract: Continuous steel-concrete composite beams are widely used in the construction industry. The concrete slab is typically attached to an I steel girder by means of welded headed studs, which however are susceptible to several problems and need special considerations at hogging bending regions. In this paper, an efficient re-design for the steel I-shaped girders is proposed. The width of the upper flange is reduced while the depth of the web is increased which maintaining the same area of steel. The elongated web has perforations along its length and penetrates the slab in such a way that allows the concrete to form concrete dowels and thus achieve the required bond. A numerical study based on the plastic analysis of the composite section is used to quantify the change in the bending capacity due to the proposed type of connection, considering both cases of sagging and hogging moments. The results of a comparative analysis between the proposed re-design and examples of designs taken from the literature are also presented. The study demonstrates an increased moment capacity in both sagging and hogging regions for the composite beams, with the possibility of fabricating more efficient cross sections based on the actual bending moment diagram.
Description: This is a conference paper.
Sponsor: The first author would like to gratefully acknowledged his sponsors, the Iraqi Ministry of Higher Education and Scientific Research and the University of Kufa, for their financial support in his Ph.D. studies at Loughborough University.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/25935
Publisher Link: http://conference.org.uk/international-research-week/post-graduates/
Appears in Collections:Conference Papers (Civil and Building Engineering)

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