Torsional design method used in Eurasia region: A comparative study


Ju H. Lee D. Kim K.-H. Yerzhanov M. Zhang D. Kim J.R.
December 2021John Wiley and Sons Inc

Structural Concrete
2021#22Issue 63798 - 3834 pp.

This study conducted an extensive review and evaluation of torsional design methods specified in SNiP and other international building codes. Unlike thin-walled tube approach utilized as a key basis of design expressions in ACI 318, CSA, and Eurocode 2, skew-bending theory is still adopted as torsional design methods specified in SNiP code used through Eurasia region. This comparative study is timely required since there are radical code changes in leading Eurasia countries, such as Russia, Kazakhstan, and Uzbekistan, toward Eurocode from SNiP code. To this end, a total of 253 reinforced concrete (RC) specimens that failed in pure torsion were collected from the literature to compare the analytical accuracy of the torsional design methods specified in various design codes. It was found that the torsional design methods specified in SNiP and CSA codes can estimate the torsional strengths of RC members with good level of accuracy, while Eurocode 2 provided quite conservative results. In addition, the maximum limitations stipulated in each design code on the compressive strength of concrete and yield strength of reinforcements are of importance for the safe and efficient torsional design due to interrelation between reinforcement ratios considering materials strengths and inclination angle of compressive concrete strut.

design code , reinforced concrete , Russian code , skew-bending theory , torsion , torsional database

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School of Architecture and Design Convergence, Hankyong National University, Anseong, South Korea
Department of Architectural Engineering, Chungbuk National University, Cheongju, South Korea
Department of Architectural Engineering, Kongju National University, Gongju, South Korea
Department of Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan

School of Architecture and Design Convergence
Department of Architectural Engineering
Department of Architectural Engineering
Department of Civil and Environmental Engineering

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