Simulation of combined action of reinforcement and concrete on the example of composite reinforcement
https://doi.org/10.21285/2227-2917-2022-2-174-181
Abstract
The characteristics of modelling the combined action of reinforcement and concrete on the example of composite reinforcement are discussed. In the work, glass-fibre and basalt composite A-type deformed reinforcing bars were considered. The studied samples of composite reinforcement comprised a power rod having an anchor layer, evenly distributed on the surface at an angle to its longitudinal axis. The anchor layer was manufactured from a thermosetting resin and a continuously reinforcing filler. Atype reinforcement is formed by pressing the reinforcing bundle into the power rod, while ribs are generated on the surface. The experiments carried out using concrete cubes having a rib size of 15 cm and prisms having a cross-section of 15×15 cm and height of 60 cm showed that the average values of maximum adhesion strength of the studied reinforcement samples are comparable and meet the established standards. Conversely, the use of basalt composites has a negligible impact on the adhesion of reinforcement to concrete. This indicator is significantly affected by the configuration of the external profile of the rod. In addition, the uniform operation of the “reinforcement – concrete” system was noted. Due to the reinforcement profile used during the experiment, uniform and stable behaviour of the rod in concrete was achieved, as demonstrated by the stress-displacement diagrams based on the results of the pull-out test. The obtained adhesion of composite glass-fibre and basalt reinforcement to concrete allows general dependencies for calculating the anchoring of this reinforcement in concrete to be used.
About the Authors
A. V. Lastovka
Siberian Federal University
Russian Federation
Russian Federation
Anatoly V. Lastovka, Cand. Sci. (Eng.), Associate Professor of the Department of Building Structures and Controlled Systems
79 Svobodny Ave., Krasnoyarsk
A. V. Ivanova
Siberian Federal University;
SK “Avangard”
Russian Federation
Russian Federation
Anastasia V. Ivanova, Master, “SK” Avangard; undergraduate, Siberian Federal University
28A, Karamzina St., Krasnoyarsk, 660012,
79 Svobodny Ave., Krasnoyarsk
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Review
For citations:
Lastovka A.V., Ivanova A.V. Simulation of combined action of reinforcement and concrete on the example of composite reinforcement. Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost. 2022;12(2):174-181. (In Russ.) https://doi.org/10.21285/2227-2917-2022-2-174-181
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