| Issue |
MATEC Web Conf.
Volume 230, 2018
7th International Scientific Conference “Reliability and Durability of Railway Transport Engineering Structures and Buildings” (Transbud-2018)
|
|
|---|---|---|
| Article Number | 02027 | |
| Number of page(s) | 7 | |
| Section | Structures, Buildings and Facilities | |
| DOI | https://doi.org/10.1051/matecconf/201823002027 | |
| Published online | 16 November 2018 | |
Evaluation of bond between reinforcement and concrete
National University of Water Management and Nature Recourses Use, Architectural Designing Bases, Constructing and Graphics Department, Soborna str. 11, 33028 Rivne, Ukraine
* Corresponding author: romashkovasyl@gmail.com
The scheme of stressed state changes of the concrete contact layer and reinforcing rod during its pulling out of concrete is considered. The most important drawbacks of the known methods for evaluating the bond strength of reinforcement to concrete have been analyzed. Particular attention is focused on bond estimating by average tangential stresses. It is substantiated why the linear dependence of these stresses on normal stresses in the reinforcement cannot cover the processes of reinforcement bonding with concrete in the stage of use of reinforced concrete elements. A universal dependence of the average tangential stresses for estimating the reinforcement bond to concrete at any stage of elements deformation is proposed. Statistical evaluation of the obtained dependence was made on the basis of theoretical and experimental values of the average tangential bonding stresses comparison. The area of use of reinforcement bond with concrete average stresses dependence is defined.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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