Some aspects of the concrete creep theory
Abstract
In scientific publications devoted to the theory of creep, there are doubts about the correctness of the superposition principle, which does not work during unloading. The criticized rheological equations of state are constructed for non-decreasing loading modes and it is really not correct to apply them when unloading. In addition, doubts are based on the notorious diagram σ–ε with a descending branch, which can only be constructed when measuring stresses in experiments for a given strain. When constructing rheological equations, a different diagram is used. In principle, the problem is solved in the two-component theory of creep proposed by A.A. Gvozdev and developed by K.Z. Galustov, and this finally closes the issue of the applicability of the principle. In this theory, deformations are divided into partial ones according to the principle of their reversibility. A method of such separation with the possibility of using the existing regulatory framework, which makes it possible to significantly adapt the theory to the needs of practice, is proposed.
About the Authors
V. G. Nazarenko
Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev “Research and Development Center “Stroitel’stvo” JSC
Russian Federation
Russian Federation
Doctor of Sciences (Engineering)
A. I. Zvezdov
Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev “Research and Development Center “Stroitel’stvo” JSC
Russian Federation
Russian Federation
Doctor of Sciences (Engineering)
E. A. Larionov
Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev “Research and Development Center “Stroitel’stvo” JSC
Russian Federation
Russian Federation
Doctor of Sciences (Engineering)
A. A. Kvasnikov
Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev “Research and Development Center “Stroitel’stvo” JSC
Russian Federation
Russian Federation
Doctor of Sciences (Engineering)
e-mail: a.a.kvasnikov@gmail.com
References
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Review
For citations:
Nazarenko V.G., Zvezdov A.I., Larionov E.A., Kvasnikov A.A. Some aspects of the concrete creep theory. Concrete and Reinforced Concrete. 2021;603(1):40-43. (In Russ.)
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