Hydrodynamic Pressure in Semicylindrical Reservoir

by Francisco J. Sanchez-Sesma, Grad. Research Asst.; Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Mexico,
Emilio Rosenblueth, (F.ASCE), Prof. of Engrg.; Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Mexico,


Serial Information: Journal of the Engineering Mechanics Division, 1977, Vol. 103, Issue 5, Pg. 913-919


Document Type: Journal Paper

Abstract:

Solutions are presented for modal analysis of hydrodynamic pressures generated by the three translational seismic components — longitudinal, vertical, and transverse — on a dam limiting a semicircular cylindrical reservoir. The main purpose is to show the influence of the cross-sectional shape of the reservoir in the hydrodynamic responses. Results are compared with those for rectangular cross section. Responses are found to be systematically smaller with semicircular cross section for a given cross-sectional area and depth. It is concluded that, for design purposes, the fundamental mode adequately approximates the response for various excitations of practical interest.

Subject Headings: Cross sections | Hydrodynamics | Reservoirs | Modal analysis | Seismic tests | Dams | Seismic design | Excitation (physics)

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