Non-linear simulation of load-bearing capacity for steel-encased concrete piles
- DOI
- 10.2991/aime-17.2017.132How to use a DOI?
- Keywords
- steel-encased concrete pile, concrete-filled steel tube constructions, non-linear concrete deformation diagram
- Abstract
This paper is devoted to simulation of the stress-strain state of a steel-encased concrete piles. Often, the use of steel-encased concrete piles is the most technologically advantageous, especially when large-sized structures are built in difficult ground conditions. However, traditional concrete-filled steel tube structures have a significant disadvantage. The expansion of the concrete is less than the expansion of the steel tube in radial direction. Thus, the steel tube is not in a contact anymore with the concrete. The article proposes the construction of steel-encased concrete piles, inside which concrete is comprehensively compressed by the tube. It is named a concrete end-bearing pile in the steel cage. Now there is no reliable model for steel-encased concrete pipes, which is acceptable for practical use, namely, which fully reflects the features of their stress-strain state and takes into account the nonlinearity of concrete deformation. The article describes the simulation of a nonlinear stress-strain state of concrete confined by a tube. The formulas for the three-dimensional model of a steel-encased concrete end-bearing pile considering nonlinearity of a concrete deformation diagram are obtained in this paper. Load-bearing capacity of the concrete end-bearing pile in the steel cage is analyzed. In the article, the effect of the tube wall thickness on the load-bearing capacity of the pile is considered
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - G.L. Gorynin AU - V.A. Snigireva PY - 2017/07 DA - 2017/07 TI - Non-linear simulation of load-bearing capacity for steel-encased concrete piles BT - Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017) PB - Atlantis Press SP - 816 EP - 822 SN - 2352-5401 UR - https://doi.org/10.2991/aime-17.2017.132 DO - 10.2991/aime-17.2017.132 ID - Gorynin2017/07 ER -