反りせん断変形を考慮した箱げたの曲げねじれ問題の解析

概要

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An analysis of non-uniform torsion problems, with due regard to the effect of warping shear deformation, is developed for box girders subjected to arbitrary torsional loading. The method of the analysis regards the behavior of the girder in non-uniform torsion from a different angle than do the investigations based upon Wagner's hypothesis, and throws light on the interaction of the plates of which the girder is composed. Formulas derived in the present analysis for the geometrical properties of the box sections have the advantage that they do not require an excessive amount of calculation effort even for multi-cell girders. Using the formulas, with a view to examining the effect of warping shear strains on the non-uniform torsion of the box girders, numerical treatments are carried out for four box girders with the typical cross sections.
山梨大学の論文