Test calculation of steel I-beams with non-standart cross-section at restrained torsion

Abstract

Solved the test problem to determine the stress-strain state of a steel I-beam with non-symmetrical flat web in conditions of restrained torsion. In the first version, the problem is solved analytically using the formulas of the mechanics of materials. The second version of the calculation is performed numerically in «ANSYS 14.5» software package based on the spatial model, where finite elements of shell type are used. A comparative analysis of numerical solution with an analytical calculation revealed the adequacy of the FE model of shell type.