Structural Behaviour and Mechanical Properties of Welded Steel I-Girders with Corrugated Webs

Abstract

Steel I girders with corrugated webs are appropriate alternatives for normal flat-web girders in steel structures since they provide lighter and smaller beam features in steel design. Based on the existing literature, the corrugated web beams (CWBs) provide many advantages for structural applications. In this study, a series of numerical analyses have been performed in order to investigate the structural behaviour of steel I girders with corrugated web profile and to compare their mechanical performance with normal welded beams. Theory of Ultimate Limit State design has been adopted in accordance with AS4100 (1998) along with considering geometric and material non-linearity in the numerical analyses in SAP2000. Comparing the results of the numerical investigation, merits of using corrugated welded beams (CWBs) over normal welded beams (WBs) have become apparent. Moreover, investigations regarding force-displacement relationship and buckling analysis of the webs were carried out and presented to further validate the advantages of using corrugated web beams. CWBs have been used in some parts of Australia without detailed information about their mechanical properties. Thus, based on the outcomes of this study, CWB table for dimensions and cross sectional properties has been developed and proposed for practical applications.

Shear Capacity Analysis of Welded Steel I-Girders with Corrugated Webs based on First Yield

“…According to Wu et al (2020), the corrugation in the webs could enhance the steel girder's strengths and reduce the costs of fabrication and transportation of the beams. Similarly, Lin et at. (2018) carried out beam optimisation for CWBs in comparison to the flat-web beams.…”

“…According to Lin et al (2018), CWBs with the corrugation angle of 30° and the corrugation length of 400mm had better mechanical performances against other different corrugation sizes, in which this selected corrugation size will be utilised to replace the flat webs in WBs. A sample demonstration of CWB numerical model is shown in Figure 1 to illustrate the geometry details of the numerical simulation in this study, where the fundamental details of the cross-sectional geometry will be the same as the values listed in the Hot Rolled and Structural Steel Products property tables (2018).…”

“…Many researchers (e.g. Abbas et al 2007;Deng et al 2017;Lin et at. 2018) have pointed that the corrugation nature will enhance the bending and shear strengths of CWBs.…”

Deflection analysis of welded steel I‐girders with corrugated webs based on first yield

“…Lin et al [18] stated that the CWBs with a corrugated length of 400 mm and the corrugated angle of 30° performed favourable mechanical capacities comparing with other corrugated sizes, and this selected size will be used to replace the flat web in the conventional beams. A CWB numerical model sample has been illustrated in Fig.…”

Multi-Objective Optimization Design of Corrugated Steel Sandwich Panel for Impact Resistance

“…As a new type of structure with two face sheets and a cell core, corrugated sandwich panels have often been used to replace traditional metal components to reduce weight. Corrugated sandwich panels offer many advantages, such as lightness, low construction cost, high specific strength, effective sound insulation, high energy absorption efficiency, and strong impact resistance [4][5][6][7][8][9]. Hence, corrugated steel sandwich panels are being used in ship construction, for example, in the Visby class corvettes built by the Swedish Navy [10], in the European research project SANDWICH [11], and in the smooth components of ships [12].…”