Equivalent Torsional-Warping Stiffness of Cores with Thin-Walled Open Cross-Section Using the Vlasov Torsion Theory

In order to calculate the equivalent torsional-warping stiffness of Reinforced Concrete (RC) cores that have thin-walled open cross-section, a new analytical methodology, which combines Vlasov torsion theory with Bernoulli bending theory, is presented herein. As basis calculations, we use principal elastic reference system core from this consider known. Furthermore, start point core's exact sectorial coordinates, as well as, warping moment inertia are all known, also. Moreover, two above-mentioned theories (Vlasov and Bernoulli) together combining in end, has resulted. This very useful right simulation building consists frames, walls, cores. The present methodology via special numerical cases RC for illustrative purposes. article gives documented solution proposes an ideal-equivalent column be located on center core. must provided diagonal, lateral-stiffness matrix represents properties real thus proposed. Finally, check reliability results various analysis software, proposed procedure can used benchmark method