Comparative Analysis of the Calculation of an I-Beam Cross-Section Beam According to Eurocode 3 and SNiP II-23-81*
Journal Title: Металлические конструкции - Year 2017, Vol 23, Issue 2
Abstract
The article presents a comparative analysis of the beams of the I-beam cross-section according to Eurocode 3: “Steel structures” [1] and SNiP II-23-81* “Steel structures” [6]. The object of investigation was a beam of an I-section of 17.5 m in a frame-bonded frame. Based on the maximum effort received (Mmax = 2130 kNm, Qmax = 690 kN, Nmax = -147 kN) [14], the beam heights from 1090 to 1690 mm were accepted with walls from 4 to 8 mm thick according to the existing grade of metal roll GOST 19903- 74* “Rolled hot-rolled sheet” [8] and GOST 82-70* “Rolled steel hot-rolled broadband universal” [9]. Comparison of beam calculation methods is carried out. The boundary conditions determining the staging of the wall operation are considered. According to the calculation results, the metal capacities of the beams are determined depending on the height and wall thickness, and also the step of the transverse stiffeners according to [1] and [6]. The optimum thickness and height of the beam wall, as well as the required step of the transverse stiffeners, are determined. The analysis of the obtained values is carried out and the main factors influencing metal intensity of the beam are determined.
Authors and Affiliations
Andrey Alyokhin, Anton Burdel
Keywords
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