Conclusions
-
1.
Owing to the sucessful hydraulic tests an adequate guarantee was obtained for the safe operation of the unencased downstream ends of the first-stage penstocks of the Nurek hydroelectric station, at service pressure.
-
2.
Based on the results of tests at a pressure of 18kg/cm2 it is expected that at 36.8kg/cm2 there will be an overstress of 20% in the reinforcing plates of the manhole T-piece, if the T-piece is not encased in concrete. As the T-piece will be enclosed in a reinforced-concrete lining designed to carry the full internal pressure with a safety factor of the order of 1 its strength can be regarded as guaranteed.
-
3.
The stressed state of the bend corresponds, in the main, with the computed conditions.
-
4.
The tests disclosed no general beam flexure of the downstream end of the penstock.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature Cited
A. A. Voloshin and Yu. A. Samsonov, Design and Development of Intersecting Shells of Vessels [in Russian], Mashinostroenie, Leningrad (1968).
A. G. Kamershtein, Service Conditions of Steel Conduits, and Reserves in Their Carrying Capacity [in Russian], Stroiizdat, Moscow (1966).
F. M. Svoiskii, “Built-up shell of pipe bend type, Dissertation, Leningrad State University (1970).
S. P. Timoshenko and S. Voinovskii-Kriger, Plates and Shells [in Russian], Nauka, Moscow (1966).
Yu. A. Shimanskii, Structural Mechanics of Submarines [in Russian], Sudpromgiz, Leningrad (1948).
Additional information
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 1, pp. 25–30, January, 1975.
Rights and permissions
About this article
Cite this article
Shor, A.M. Full-scale strength tests on penstock outlets of the Nurek hydroelectric station. Hydrotechnical Construction 9, 39–46 (1975). https://doi.org/10.1007/BF02379425
Issue Date:
DOI: https://doi.org/10.1007/BF02379425