Comparative analysis of the application of concrete-filled steel tube structures in hydraulic engineering based on the analysis of the stress-strain state
https://doi.org/10.37538/0005-9889-2025-3(628)-5-19
EDN: HXGXBQ
Abstract
Introduction. The article examines the use of concrete filled steel tube (CFST) structures in hydraulic engineering and compares various structural options in terms of their stress-strain state and load-bearing capacity.
Aim. The main goal of the work is to analyze the application of concrete-filled steel tubes and various approaches to their design, as well as to compare the stress-strain states of different structural solutions.
Materials and methods. The calculations of reinforced concrete structures were performed using the finite element method with nonlinear models in ANSYS software.
Results. The calculation results showed that for monolithic concrete pipes (without reinforcement), the load-bearing capacity was 56.28 kNm; for reinforced concrete pipes, the load-bearing capacity was 416.60 kNm; for the metal pipe, it was 639.07 kNm; for the concrete-filled steel pipe (tubular concrete), the load-bearing capacity increased to 768.76 kNm; and for reinforced concrete-filled steel pipe, the highest load-bearing capacity was 1085.50 kNm.
Conclusions. The calculation results and comparative analysis show that reinforced tubular concrete is the most effective in terms of load-bearing capacity, although it has a higher cost. At the same time, reinforced concrete and metal pipes offer a more economical option but with lower load-bearing capacity. The choice of material depends on the specific project requirements, including loads, cost, and operating conditions.
About the Author
I. V. Baklykov
Hydroproject Institute JSC
Russian Federation
Russian Federation
Igor V. Baklykov, Cand. Sci. (Engineering), Chief Specialist of the Department of Computational Studies of Hydraulic Structures, Hydroproject Institute JSC, Moscow
e-mail: moscow_igor88@mail.ru
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Review
For citations:
Baklykov I.V. Comparative analysis of the application of concrete-filled steel tube structures in hydraulic engineering based on the analysis of the stress-strain state. Concrete and Reinforced Concrete. 2025;628(3):5-19. (In Russ.) https://doi.org/10.37538/0005-9889-2025-3(628)-5-19. EDN: HXGXBQ
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