RESEARCH ARTICLE


Behavior of Steel Welded Tapered Beam-column



A.I. Dogariu*, A. Crișan, M. Cristuțiu, D.L. Nunes, A. Juca
Steel Structures and Structural Mechanics department, Politehnica University of Timisoara, Timisoara, Romania


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Creative Commons License
© 2017 Dogariu et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at Steel Structures and Structural Mechanics department, Universitatea Politehnica din Timisoara str. Ioan Curea 1, 300224, Timisoara, Romania; Tel: +40 (0) 256 403 922; Fax: +40 (0) 256 403 917; E-mails: adrian.dogariu@upt.ro, dogariuadrian @gmail.com


Abstract

Steel structural elements with variable cross-section, made of welded plates, are largely used in the construction industry for both beams and columns in accordance with the stress and stiffness demand in the structure. These types of elements are mainly used for the design of single storey frames with pitched roof rafters and pinned column base. Rafters and columns can be designed as tapered members made of steel welded plates, respecting the bending moment diagrams for gravitational load combination. This paper deals with experimental tests performed on tapered beam-columns elements, subjected to both bending moment and compressive axial force together with analytical investigation.

Keywords: Boundary conditions, Eurocode interaction formulas, Experimental investigation, General method, Lateral-torsional buckling, Tapered beam-column members.