Sep 2026· Building and reconstruction· 0 citations· 7 references
Abstract
An
improved
method
for calculating reinforced concrete structures has been developed, based on the fundamental principles of the modern phenomenological theory of a non-linearly deformable elastic-creeping body, which takes into account tensor nonlinearity and rheology of deformation together with non-force operational factors. The influence of reinforcement in a three-axis stress-strain state with the condition of joint deformations of concrete and reinforcement is analyzed. Mathematical relations are derived that make it possible to formulate equations for design stresses in reinforced elements. The basic phenomenological equations describing vibration effects are presented, which make it possible to determine the operation of reinforced concrete elements both without cracking and in its presence. An algorithm for linearization of the problem based on integral estimates is proposed, which provides for the fixation of corrosion processes and vibration.
Objective
. This work is devoted to a quantitative assessment of the effect of internal prestressing of reinforcement on the stress-strain state and load-bearing capacity of a thick-walled cylindrical shell.
Method
. The study is carried out through a computational experiment using the finite element method in an...
V. V. Kuznetsov, S. V. Litvinov, T. Volosatova· Herald of Dagestan State Tec...· 0 citations
This article considers the free vibrations of a reinforced concrete structure with nonlinear flexural stiffness due to the formation and closure of normal cracks and with energy dissipation represented by viscous damping. The calculation model is a cantilever bar loaded with a constant longitudinal force N and an ins...
A. Tamrazyan· Building and reconstruction· 0 citations
It is proposed to assess the mechanical safety of key structural elements under accidental conditions using an ultimate limit surface formed by the joint consideration of local strength criteria for each type of ultimate internal force, without analyzing a single critical cross-section. Such a surface is constructed...
A. Alekseytsev, W. Fan, S. I. Kokotov· Building and reconstruction· 0 citations
ABSTRACT
The behaviour of hollow reinforced concrete beam elements under earthquake force was studied and analyzed. The governing partial differential equation of the motion is the Euler-Bernoulli beam equation subjected to the simply supported boundary conditions. Aboodh transform method was used to solve the partial...
Yahaya Sani Rigachikun· International Journal of Dev...· 0 citations
Extensive research on fiber-reinforced concrete (FRC) has led to a solid understanding of its structural behavior, enabling the development of design codes. Initially dominated by steel fibers, FRC has progressively incorporated macro synthetic fibers, particularly in Latin America, where it is widely used in tunnel li...
S. Carmona, G. Plizzari, J. Barraza· Materiales de Construccion· 0 citations
A method for using simple isothermal diagrams to study the crisis-strain state of concrete under regime-induced thermal-power loading and forced deformation is proposed. The methodological foundations of the study are built on a clear distinction between the concepts of strain additivity and loading non-commutativity...
V. S. Fedorov, V. E. Levitsky· Building and reconstruction· 0 citations
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