Internal Forces and Steel Arrangement Analysis on the Steel Lined Reinforced Concrete Penstocks

Abstract:

he steel lined reinforced concrete penstocks (SLRCP) is always looked as an axisymmetric structure according to the design code, which can not show the true load-carrying capacity when considering the dam’s constraint to the SLRCP. In this paper, the physical non-axisymmetric property of the structure is simulated using the finite element method. The internal force distribution of every cross section in the SLRCP is studied, and a design method for steel arrangement based on axial force is proposed. When considering the non-axisymmetric property, the axial force in those cross sections approaching the bottom of the structure may be reduced more than 30% to the calculated value by the axisymmetric analysis. The larger the inner radius of the penstock or the thickness of the concrete wall is, the more marked the non-axisymmetric property of the SLRCP is.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 99-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.99
• Online since: September 2011
• Authors: Zhang Wei, Chuan Xiong Fu, Lu Feng Yang, Jin Zhang
• Keywords: Internal Force, Non-Axisymmetric, Steel Arrangement, Steel Lined Reinforced Concrete Penstocks

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