Finite Element Analysis of Shaba Inverted Siphon Structure

Abstract

Abstract-The numerical simulation study for water conveyance of inverted siphon on water security is of great significance. The inverted siphon is thin-walled concrete structure, and cracks will appear according to temperature loads. Generally speaking, the temperature difference between the internal and external and the basic difference of temperature are considered as the main factors influencing the cracks. Static analysis of inverted siphon structure is the foundation of design and construction, includes the calculation and analysis of stress and strain of inverted siphon structure. The stress and strain of inverted siphon structure not only are the index of inverted siphon structure rigidity, but also are the basis of identifying whether the inverted siphon structural damage occur. Using the basic theories of temperature and stress field of concrete, this paper adopts 3d finite element to simulate and calculate Shaba inverted siphon, and gets stress and deformation distribution of inverted siphon during operation period. The results show that inverted siphon structure is economic and reasonable, can meet the stiffness requirement, and can provide beneficial reference to the design and construction for other inverted siphon structure.