Seismic Pressure Surges in Liquid-Filled Pipelines

[+] Author and Article Information
F. J. Hatfield, D. C. Wiggert

Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824

J. Pressure Vessel Technol 112(3), 279-283 (Aug 01, 1990) (5 pages) doi:10.1115/1.2928626 History: Received March 20, 1989; Revised July 12, 1989; Online June 17, 2008


Observed damage and analytic studies indicate that earthquakes may cause destructive pressure surges in liquid-filled piping. Most studies have concerned buried piping that could be assumed to move with the ground. However, pressure surges also would be expected in above-ground piping, where they would affect the displacement response and, hence, the amplitude of flexural stress in the piping. Current aseismic design practice is to simplify this effect by treating the contained liquid as incompressible mass. This paper describes a technique for computing pressure and relative displacement that incorporates elasticity of both the piping and the liquid. Seismic responses of an example pipeline are predicted. It was found that assuming the piping to be rigid produced an upper-bound estimate of pressure, but assuming the liquid to be incompressible resulted in underestimating displacement of the piping.

Copyright © 1990 by The American Society of Mechanical Engineers
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