Dynamic strength criteria of prestressed reinforced concrete structures with combined strength
https://doi.org/10.33979/2073-7416-2021-97-5-51-61
Abstract
Dynamic strength criteria and crack resistance criteria are given for a typical plane-stressed reinforced concrete element with prestressed reinforcement in one direction. The criteria are constructed by generalizing the theory of plasticity of concrete and reinforced concrete G.A. Geniev on the area of existence of tensile stresses: "tension- tension" and "compression- tension". In general terms, the crack resistance condition and strength condition of a prestressed reinforced concrete plane-stressed element are presented in the form of an ellipse in the coordinates of the main stresses. In this case, in contrast to the criteria of crack resistance of a flat unstressed element, the principal axes of the ellipse don't pass through the origin. The results of a comparative analysis of the calculated and experimental data on crack resistance and strength for prestressed reinforced concrete in the support zone of the beam of a monolithic reinforced concrete frame tested for a given design load and a special dynamic effect are given.
About the Authors
T. A. Iliushchenko
South West State University; Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences
Russian Federation
Russian Federation
Tatiana A. Iliushchenko - postgraduate student of unique buildings and structures, Southwest State University; engineer, Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences.
Kursk; Moscow.
N. V. Fedorova
Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences; Moscow State University of Civil Engineering
Russian Federation
Russian Federation
Natalia V. Fedorova - doctor of Technical Sciences, Professor, Head of the Department of Architectural and Construction Design, Director of the branch of Moscow State University of Civil Engineering (National Research University) (MGSU) in Mytishchi, Moscow State University of Civil Engineering (National Research University) (MGSU); leading researcher, Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences.
Moscow.
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Review
For citations:
Iliushchenko T.A., Fedorova N.V. Dynamic strength criteria of prestressed reinforced concrete structures with combined strength. Building and Reconstruction. 2021;(5):51-61. (In Russ.) https://doi.org/10.33979/2073-7416-2021-97-5-51-61
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