A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic stability of roundhead buttress dams
Conclusions 1. Yielding of a foundation has a considerable effect on the seismic stability of roundhead buttress dams. The experimental data presented in the article are not complete but can be used in design for taking into account the indicated factor. 2. When a structure is subjected to a seismic load of the traveling-wave type directed along the canyon, the magnitudes of the stresses in the buttress near the base of the dam can prove to be considerably greater than those obtained by calculation or experiment without consideration of this factor. 3. The local stress concentrations arising in the lower part of the dam in the zone of interlocking side planes of the roundhead buttress can be eliminated in the case of a lateral earthquake by means of joints-notches on the side planes of the roundheads or by constructing under each section a yielding interlayer having an increased tensile strength. 4. Sealing of all the intersectional joints of the dam is an effective method of increasing its seismic stability. This method is especially effective under conditions of narrow sites.
Seismic stability of roundhead buttress dams
Conclusions 1. Yielding of a foundation has a considerable effect on the seismic stability of roundhead buttress dams. The experimental data presented in the article are not complete but can be used in design for taking into account the indicated factor. 2. When a structure is subjected to a seismic load of the traveling-wave type directed along the canyon, the magnitudes of the stresses in the buttress near the base of the dam can prove to be considerably greater than those obtained by calculation or experiment without consideration of this factor. 3. The local stress concentrations arising in the lower part of the dam in the zone of interlocking side planes of the roundhead buttress can be eliminated in the case of a lateral earthquake by means of joints-notches on the side planes of the roundheads or by constructing under each section a yielding interlayer having an increased tensile strength. 4. Sealing of all the intersectional joints of the dam is an effective method of increasing its seismic stability. This method is especially effective under conditions of narrow sites.
Seismic stability of roundhead buttress dams
Bakhtin, B. M. (author)
Hydrotechnical Construction ; 7 ; 456-461
1973-05-01
6 pages
Article (Journal)
Electronic Resource
English
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