Joint operation of threaded mechanical connections of reinforcement with concrete
https://doi.org/10.33979/2073-7416-2025-117-1-48-59
EDN: 624.07
Abstract
The diagrammatic calculation method is used in the calculation of reinforced concrete structures for the most accurate modeling of its stress-strain state. When calculating using this method, real diagrams of material deformation under load are used. The use of this method to calculate a reinforced concrete element in sections with mechanical connections of reinforcement necessitates experimental studies to clarify the features of the joint work of concrete with reinforcement in places where mechanical connections are installed. In particular, it is necessary to study the features of deformation of mechanical connections of reinforcement together with concrete during cyclic loading. These issues are discussed in the proposed article. The methods and results of experimental studies of the operation of rebar rolled products of class A500C and mechanical connections by conical threads in a free state and when working with high-strength concrete of class B60 are presented. Two loading modes have been studied – static stretching and multi-cycle stretching. The peculiarities of the operation of mechanical connections by threads under the specified loading conditions, taking into account the effect of adhesion to concrete, are revealed. The experimental research results obtained are the basis for the development of a diagrammatic calculation method for reinforced concrete structures in sections with mechanical reinforcement connections.
About the Authors
I. G. Chepizubov
NIISF RAASN
Russian Federation
Russian Federation
Chepizubov Igor Gennadievich, Candidate of Technical Sciences, Leading Researcher
Moscow
A. A. Safonov
VNIIZhelezobeton
Russian Federation
Russian Federation
Safonov Alexander Alexandrovich
Moscow
G. A. Moiseenko
NIISF RAASN
Russian Federation
Russian Federation
Moiseenko Georgy Alexandrovich, Candidate of Technical Sciences, Researcher
Moscow
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Review
For citations:
Chepizubov I.G., Safonov A.A., Moiseenko G.A. Joint operation of threaded mechanical connections of reinforcement with concrete. Building and Reconstruction. 2025;1(1):48-59. (In Russ.) https://doi.org/10.33979/2073-7416-2025-117-1-48-59. EDN: 624.07
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