PECULIARITIES OF CALCULATION OF SPAN CONSTRUCTIONS FROM PERFORATED ELEMENTS AT A COMPLEX STRESS-DEFORMED CONDITION
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 175, Issue 9
Abstract
Some results of their own theoretical studies of the carrying capacity of span perforated structures on the limiting states of the first group, namely the steel pre-stressed arch with the upper belt of the perforated twine and the Z-section cross-section run, are presented. The formulas for calculating the stresses in the characteristic sections of the structural elements are proposed, which allow more accurately to take into account the change in the stress-strain state in the perforated elements with the joint action of the bending moment, the transverse and longitudinal forces for the upper belt of the arch, and also with the bending curve for the Z- sections with a slope of the roof from 0 to 250. The results of calculating the stresses according to the reduced formulas, the results of numerical studies in the program complex "Lira" and the results of the experimental studies have fairly exact convergence, which makes it possible to draw a conclusion on the possibility of applying the proposed method for determining stresses in practice.
Authors and Affiliations
Volodymyr Romaniuk
Keywords
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- EP ID EP357218
- DOI 10.18664/1994-7852.175.2018.127177
- Views 62
- Downloads 0
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