The Structural Engineer > Archive > Volume 69 (1991) > Issues > Issue 11 > The Elastic Torsional Stiffness of Concrete Sections
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The Elastic Torsional Stiffness of Concrete Sections

An examination is made of the effectiveness of approximate methods for the assessment of the torsional stiffness of typical concrete sections under the action of uniform Saint-Venant torsion. It is shown that rectilinearly bounded open sections may be acceptably treated by approximating procedures but that numerical approaches are necessary for non-rectilinearly bounded or composite sections. An effective approximate treatment is shown to be available for multiply-connected sections. D. Johnson