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BUILDING STRUCTURES, BUILDINGS AND FACILITIES
About Calculation Of Strength Of Reinforced Concrete Elements On Inclined Sections
UDC 624.072.21.012.4.046 DOI: 10.33622/0869-7019.2020.06.17-25
Yuriy V. KRASNOSHCHEKOV, e-mail: uv1942@mail.ru
Larisa V. KRASOTINA, e-mail: krasotina.larisa@gmail.com
Siberian State Automobile and Highway University, prosp. Mira, 5, Omsk 644080, Russian Federation
Abstract. The calculation model of the bearing capacity of reinforced concrete elements along an inclined section is based on empirical coefficients and the indefinite length of the projection of the inclined section onto the longitudinal axis. As a result of the analysis of numerous studies, the physical essence of empirical coefficients is revealed and the calculated values of the arguments of the strength function are justified. It is established that the numerical coefficients in the calculated function of the strength of inclined sections to the effect of shear force, parameter limitations and the slope of the calculated section depend on the ratio of concrete shear and tensile strength. It is proposed to normalize this ratio and use, when calculating, the assumption of equivalent strength of a normal section that collapses from a shear (shear), and an inclined section in an axial tension state. The improved model is tested on the experimental data previously obtained. The use of the proposed model with a clear physical meaning of the design parameters will help to clarify the assessment of the strength under the action of a transverse force when designing bent reinforced concrete elements.
Key words: reinforced concrete strength, inclined section, shear force, concrete shear resistance, calculation model.
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For citation: Krasnoshchekov Yu. V., Krasotina L. V. About Calculation of Strength of Reinforced Concrete Elements on Inclined Sections. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2020, no. 6, pp. 17-25. (In Russian). DOI: 10.33622/0869-7019.2020.06.17-25.

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