Structural Analysis of Steel Bifurcation Pipe with a Crescent Rib in a Hydropower Station

DOI

10.2991/978-94-6463-449-5_55How to use a DOI?

Keywords

steel bifurcation pipe; crescent rib; Structural analysis; hydropower station

Abstract

In hydropower project, steel bifurcated pipe is a key diversion structure, and its stability and safety are very important. However, there are still some deficiencies in the current research on the mechanical behavior of steel bifurcated pipe, especially in the open and buried state. In this paper, the working conditions of steel bifurcated pipe in hydropower station under open and buried state are analyzed in detail. Mises stress distribution in the open pipe state was studied and it was found that the maximum stress concentrated in the pipe joint and the inner bottom of the crescent rib, but did not exceed the yield strength of the material. Besides the crescent rib, the tensile stress distribution in other pipe joints had a certain regularity. The influences of clearance value and elastic resistance coefficient on the stress and rock sharing ratio of steel bifurcated pipe were studied by sensitivity analysis. The results show that the structural stress is homogenized and the stress distribution is symmetrical when considering the action of surrounding rocks. This paper summarizes the stress characteristics of steel bifurcated pipe without considering the action of surrounding rock and the change law of surrounding rock sharing, which provides important theoretical support and design reference for hydropower station engineering.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Shaojia Yang
AU  - Yingchun Tian
AU  - Xiaoyu Liu
AU  - Jinfeng Wang
PY  - 2024
DA  - 2024/06/30
TI  - Structural Analysis of Steel Bifurcation Pipe with a Crescent Rib in a Hydropower Station
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 564
EP  - 571
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_55
DO  - 10.2991/978-94-6463-449-5_55
ID  - Yang2024
ER  -