engleski

Influence of shear on the torsion of thin-walled girders

An improved theory of the torsion of thin-walled girders with open cross-section is presented. The influence of shear on torsion is taken into account. An analogy between shear-influenced bending and torsion is made. Application of the theory is illustrated in the case of a prismatic pontoon with a ship-like cross-section. The obtained results are verified by the 3D FEM analysis. It is shown that twist centre differs from the well-known shear centre.

thin-walled girders; torsion; warping; shear; analytical solution; FEM

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