Cold‐formed steel beams with corrugated web and discrete web‐to‐flange fasteners

Steel beams with corrugated webs represent a relatively new structural system that has emerged in the past two decades. The thin corrugated web results in a significant weight reduction in these beams compared with hot-rolled or welded ones. In the initial solutions the flanges were made of flat plates welded to the sinusoidal web sheet, which required a specific welding technology. A new solution is proposed in this paper in which the beam is composed of a web of trapezoidal cold-formed steel sheet and flanges of built-up cold-formed steel members (e.g. back-to-back lipped channels or angles or hat omega). Self-drilling screws or spot welding are used for the connections between flanges and web. This paper summarizes the experimental and numerical investigations carried out at the CEMSIG Research Centre (http://cemsig.ct.upt.ro), “Politehnica” University of Timisoara, in order to evaluate and validate a new technological solution.

[1]  Mohamed Elgaaly,et al.  BENDING STRENGTH OF STEEL BEAMS WITH CORRUGATED WEBS , 1997 .

[2]  Olof Karlberg,et al.  Girders with Trapezoidally Corrugated Webs -- Under Patch Loading , 1996 .

[3]  Wen-Bin Zhao.  Behaviour and design of cold-formed steel hollow flange sections under axial compression , 2006 .

[4]  Bo Edlund,et al.  Shear capacity of plate girders with trapezoidally corrugated webs , 1996 .

[5]  Jiho Moon,et al.  Lateral–torsional buckling of I-girder with corrugated webs under uniform bending , 2009 .

[6]  Abdel Magid Hamouda,et al.  Finite element analysis of corrugated web beams under bending , 2002 .

[7]  Dan Dubina,et al.  Design Criteria for Seam and Sheeting-to-Framing Connections of Cold-Formed Steel Shear Panels , 2006 .

[8]  J Cafolla,et al.  LOCAL FLANGE BUCKLING IN PLATE GIRDERS WITH CORRUGATED WEBS , 1997 .

[9]  Balázs Kövesdi,et al.  Stress distribution in the flanges of girders with corrugated webs , 2012 .

[10]  Mohamed Elgaaly,et al.  GIRDERS WITH CORRUGATED WEBS UNDER PARTIAL COMPRESSIVE EDGE LOADING , 1997 .

[11]  Dan Dubina,et al.  Cold-formed steel beams of corrugated web , 2013 .

[12]  Raffaele Landolfo,et al.  Laser welded built-up cold-formed steel beams : Experimental investigations , 2008 .

[13]  Mohamed Elgaaly,et al.  SHEAR STRENGTH OF BEAMS WITH CORRUGATED WEBS , 1996 .

[14]  D. A. Nethercot,et al.  Designer's guide to EN 1993-1-1 : Eurocode 3: Design of Steel Structures : General Rules and Rules for Buildings /L. Gardner and D. A. Nethercot , 2005 .

[15]  M Elgaaly,et al.  BEAMS AND GIRDERS WITH CORRUGATED WEBS. IN: STRUCTURAL STABILITY RESEARCH COUNCIL. 1990 ANNUAL TECHNICAL SESSION, STABILITY OF BRIDGES, ST. LOUIS, MISSOURI, APRIL 10-11, 1990 , 1990 .

[16]  Mahen Mahendran,et al.  Shear design of cold-formed steel beams using direct strength method , 2013 .

[17]  Sung Nam Kim,et al.  Moment modification factors of I-girder with trapezoidal web corrugations under moment gradient , 2012 .

[18]  Remo Pedreschi.  The Testing of Connections with Mechanical Fasteners in Steel Sheeting and Sections , 2009 .

[19]  Nam-Hyoung Lim,et al.  Moment gradient correction factor and inelastic flexural–torsional buckling of I-girder with corrugated steel webs , 2013 .