Flexure–shear interaction in hybrid steel I-girders at ambient and elevated temperatures

Abstract

In literature, there is no theoretical research focusing on moment–shear interaction behavior of the hybrid girders. This article investigates the moment–shear interaction behavior of non-composite hybrid steel plate I-girders at ambient and elevated temperatures. In this regard, based on a more realistic distribution of bending and shear stresses, theoretical equations have been proposed to achieve the moment–shear interaction curve without considering shear buckling. The results obtained from the proposed equations were compared with the results of the existing experimental data and those of the finite element analysis. According to the results, there is good agreement between them.

Flexural design curves of steel plate I‐girders at elevated temperatures: I‐girders with yield or local buckling failure mode

“…To this end, first, the temperature was increased to the determined value and then the Riks analysis was utilized. The Riks analysis was modified to incorporate the geometrical imperfections resulting from manufacturing processes and welding operations 55,56 . In this regard, the first eigenmode of the I‐girder model was introduced into the Riks analysis as a first state by performing linear buckling analysis 57–59 .…”

“…The Riks analysis was modified to incorporate the geometrical imperfections resulting from manufacturing processes and welding operations. 55,56 In this regard, the first eigenmode of the I-girder model was introduced into the Riks analysis as a first state by performing linear buckling analysis. [57][58][59] The maximum magnitude of the geometrical imperfection was used as 0:8h w =100 according to EN 1993-1-2 provisions 30 wherein h w is the web depth of the I-girder model.…”

The Investigation of Stiffness of Hybrid Bisteel I-Section Beams

“…Covering the investigation of above mentioned hybrid bisteel beams, other studies related to HBB are also being addressed. Here need to be mentioned the scientific researches: on optimization of the HBB, discussed in Alekseytsev and Al Ali (2018), on investigation of the behavior of hybrid steel beams with closely spaced web openings (Bhat & Gupta, 2021), and trapezoidal corrugated-web (Elamary et al, 2021), on analysis of moment-shear in-teraction of HBB at ambient and elevated temperatures (Ghadami & Broujerdian, 2019) and other.…”