Conclusions
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1.
A considerable reduction in the dam profile with a simultaneous decrease in its asymmetry relative to the vertical does not reduce the dynamic characteristics of the structure, does not change its stability under a particular combination of loads, and hardly changes its state of stress.
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2.
Provision of the standard shear stability of the dam requires for both variants the use of special constructional measures in the presence of intensity 9 seismicity.
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3.
The complex of constructional measures in the lightweight variant, which lead to a considerable increase in its seismic stability, is promising for concrete gravity dams in regions of high seismicity.
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4.
To evaluate the seismic stability of dams of the indicated type it is necessary to develop appropriate dynamic criteria and to coordinate within the scope of a unified approach all standards regulating matters of the design of concrete gravity dams in seismic regions.
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Additional information
Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 2, pp. 5–7, February, 1977.
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Ivanishchev, V.F., Natarius, Y.I. Theoretical investigation of the seismic stability of a lightweight concrete gravity dam. Hydrotechnical Construction 11, 111–115 (1977). https://doi.org/10.1007/BF02399095
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DOI: https://doi.org/10.1007/BF02399095