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Seismic load on large tanks

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The formula can be found in TID 7024, George Housner's work or many other
papers on seismic design of tanks.  Or see our work in NEHRP 1997 Provisions
formula A14.4.3.2.1.1-2., page 242

The sloshing period is 2Pi x SQRT [D/ (3.68g tanh (3.68H/D)]

 Use consistent units.

Stephen W. Meier PE, SE
Tank Industry Consultants, Inc
    7740 West New York St                       684 West Boughton, Suite 101
    Indianapolis, IN 46214                          Bolingbrook, IL 60440
    317-271-3100                                       630-226-0745
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Meier(--nospam--at)TankIndustry.com