| Issue |
E3S Web Conf.
Volume 280, 2021
Second International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2021)
|
|
|---|---|---|
| Article Number | 03005 | |
| Number of page(s) | 6 | |
| Section | Sustainable Building and Architecture | |
| DOI | https://doi.org/10.1051/e3sconf/202128003005 | |
| Published online | 30 June 2021 | |
Analytical calculation of tube confined concrete elements with strengthened cores
1 Kryvyi Rih National University, Department of Industrial, Civil and Urban Construction, 11 Vitalii Matusevysch Str., Kryvyi Rih, 50027, Ukraine
2 Poltava National Technical Yuriy Kondratyuk University, Department of Highways, Geodesy, Land Management and Rural Buildings, 24 Pershotravnevyj Ave., Poltava, 36011, Ukraine
3 Lutsk National Technical University, Department of Automobile Roads and Airfields, 75 Lvivska Str., Lutsk, 43018, Ukraine
4 UAB “Progresyvi Statyba”, Neužmirštuolių g. 14, Vilnius, 04124, Lithuania
5 UAB “MiTek Baltic”, Liepājas iela 34-32, Zemgales priekšpilsēta, Rīga, LV-1002, Latvia
* Corresponding author: palyvoda87@ukr.net
The approach to the formation of the analytical method of evaluation of the stress-strain state of complex rod bearing structural elements is considered in the paper. The prerequisites described cover all the fundamental features of deformation of the components in conditions of tube confined concrete with a strengthened core. This is confirmed by the results of our own experimental studies. The case of central axial compression is considered in detail. From the beginning of loading to destruction of a structural element, two fundamentally different stages of work are distinguished: in the beginning – elastic; closer to destruction – plastic. The method of variable elasticity parameters is used to describe the performance of concrete in the plastic stage. The mutual influence of components during deformation is revealed by solving the contact problem. The methodology was tested by comparing the results of our own experimental and theoretical results.
© The Authors, published by EDP Sciences, 2021
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