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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Constructing a deformation diagram of uniaxially compressed concrete

Vestnik MGSU 6/2015
  • Rimshin Vladimir Ivanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, corresponding member of Russian Academy of Architecture and Construction Sciences, Department of Housing and Utility Complex, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Krishan Anatoliy Leonidovich - Nosov Magnitogorsk State Technical University (MGTU) Doctor of Technical Sciences, Professor, chair, Department of postgraduate student, Department of Building and Engineering Structures Design, Nosov Magnitogorsk State Technical University (MGTU), 38 Prospekt Lenina, Magnitogorsk, Chelyabinsk Region, 455000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mukhametzyanov Al’bert Il’darovich - Nosov Magnitogorsk State Technical University (MGTU) student, Department of Building and Engineering Structures Design, Nosov Magnitogorsk State Technical University (MGTU), 38 Prospekt Lenina, Magnitogorsk, Chelyabinsk Region, 455000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 23-31

At the present time the nonlinear deformation model based on deformation diagrams of the materials is believed to be the most promising for estimation of stress-strain state of reinforced concrete elements at different stages of their compression: before crack formation, in the process of crack formation, at the stage of cracked element operation, at destruction stage. Reliability of estimates depends largely on accuracy of analytical description of curvilinear diagram of concrete deformation. On the other hand we should remember that the calculated construction may be subject to different loading modes: short-term, long-term or competitive. In this regard the universal character is required from the used deformability diagrams. They should be easily transformed for calculation with different modes.The authors suggest methods of constructing such a deformation diagram using elasticity coefficient. Using the corresponding elasticity coefficients in calculations it is possible to account for different loading modes of structures (for example long-term loading). Such an analytical representation of concrete deformation diagram is more generalpurpose as compared to dependence on European standards.

DOI: 10.22227/1997-0935.2015.6.23-31

References
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