Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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THE EXPONENTIAL DEPENDENCE OF CONCRETE IN CALCULATIONS ON STRENGTH ECCENTRICALLY OF LOADED REINFORCED CONCRETE COLUMNS

Mordovskiy S.S. 1
1 Open Institute (SSUACE Branch) Samara State University of Architecture and Civil Engineering in Pokhvistnevo
Nonlinear functioning of concrete offer to take into account a variety of analytical dependencies. We consider some of them. Question of the application of axial compression stress-strain diagram in the calculation designs that are in the complex stress state, and researchers are concerned at the moment. In this article analyzes calculations 55 experimental samples in the form of reinforced concrete columns. When used in the calculation of three different stress-strain diagram for concrete values of strength ​​were about the are the same. Strength, determined in accordance with the developed algorithm taking into account the non-linear deformation of concrete on the exponential dependence, showed a somewhat better convergence with the experimental data as compared with the results obtained with the use of three-and bi-linear stress-strain diagram. Analyzing the results of its own and third-party experiments in all 55 samples, we conclude on the possible use of diagrams of axial compression of concrete for calculations elements that are in the complex stress state without their transformation.