NUMERICAL SIMULATION OF STRUCTURES WITH LOOP JOINTS OF REBAR
https://doi.org/10.33979/2073-7416-2023-106-2-70-79
Abstract
The article describes the statement of a problem of research of the stress-strain state of reinforced concrete monolithic structures with loop joints of rebar using the finite element method. A review of plastic damaged concrete model, a description of its basic parameters and their selection by the example of the problem of verification of mathematical material model by the results of full-scale tests of concrete prism and beam with a loop joint over a static load have been presented.
The detailed description of the model parameters, diagrams of concrete and reinforcement state, including stress-strain diagrams with regard to the models features, as well as graphs comparing the experimental and numerical research of a concrete prism and a bendable reinforced concrete beam with a loop joint, including a model of concrete, and reinforcement model are presented.
The results of numerical calculations obtained stresses in the reinforcement of 514 MPa, which is close to those resulting from the full-scale experiment of 550 MPa (Fig. 8). The value of deflection when the failure load in the experiment was 16.7 mm, in the FE model it was 18.07 mm.
About the Authors
Aleksandr N. Mamin
AO «CNIIPromzdanij»; Moscow State University of Civil Engineering (NIU MGSU)
Russian Federation
Russian Federation
doctor of technical Sciences, Professor, Head of the Department of Surveys of Buildings and Structures, AO «CNIIPromzdanij»; professor of the Department of Reinforced Concrete and Stone Structures, Moscow State University of Civil Engineering (NIU MGSU)
Moscow
Arslan As. Bammatov
Moscow State University of Civil Engineering (NIU MGSU)
Russian Federation
Russian Federation
postgraduate student of the Department of Reinforced Concrete and Stone Structures
Moscow
Nikita S. Gordeev
Moscow State University of Civil Engineering (NIU MGSU)
Russian Federation
Russian Federation
student
Moscow
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Review
For citations:
Mamin A.N., Bammatov A.A., Gordeev N.S. NUMERICAL SIMULATION OF STRUCTURES WITH LOOP JOINTS OF REBAR. Building and Reconstruction. 2023;(2):70-79. (In Russ.) https://doi.org/10.33979/2073-7416-2023-106-2-70-79
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