Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science

  • The Use of the Nonlinear Deformation Model for Calculation of Punching Strength of the Slab by a Round Column
  • сдй 692.45:69.003.13
    Aleksandr S. SILANTEV, e-mail:
    Egor A. LUCHKIN, e-mail:
    The Design Bureau of the Reinforced Concrete, ul. Veshnih Vod, 2, kor. 2, kv. 185, Moscow 129338, Russian Federation
    Abstract. There are many methods of calculation of a slab for punching, but many of them are based on empirical and semi-empirical dependences that don't reflect the physical nature of concrete behavior and do not take into account such factors as bending moment in the column, longitudinal reinforcement and its strength properties. This article considers the method of calculating the strength of flexural elements on the inclined section, based on the synthesis of a nonlinear deformation model and the theory of strength by G. A. Geniev, which is also applied to the problem of finding the ultimate punching force in the junction of the slab and the round column. As a result, the system of main resolving equations is obtained, the calculation of joints is made and it is determined that the bending moment in the column, longitudinal compression and extended reinforcement, edge deformation and the ratio of radial and ring deformations impact on the ultimate punching force. The diagrams of the dependence of influence of these factors on the bearing capacity of the slab for punching are obtained.
    Key words: bearing capacity of slab for punching, nonlinear deformation model of concrete, bending moment in column, longitudinal reinforcement, inclined sections.
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  • For citation: Silantev A. S., Luchkin E. A. The Use of the Nonlinear Deformation Model for Calculation of Punching Strength of the Slab by a Round Column. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 7, pp. 28-34.