Nonlinear transient response of unanchored liquid storage tanks
- Univ. of California, Irvine, CA (United States). Dept. of Civil and Environmental Engineering
Commonly used seismic analysis methods for unanchored liquid storage tanks have repeatedly demonstrated inconsistencies in predicting the actual behavior of these structures. Most methods incorporate a pseudo-dynamic analysis in lieu of the full time-dependent seismic analysis. Further, the estimation of liquid-exerted overturning moments lacks explicit consideration of the support effects. These overturning moments tend to lift the shell off its foundation which may cause buckling of the shell on one side and a separation of the base plate from the shell on the other. A finite element program capable of handling the complexities associated with the nonlinear transient response of unanchored tanks was developed. It was observed that the overturning moment exerted on an unanchored tank may be smaller than that exerted on a similar anchored tank, yet the stresses at the shell bottom of an unanchored tank shell are generally much larger than those of an anchored tank subjected to same ground motion.
- OSTI ID:
- 124601
- Report Number(s):
- CONF-950740-; ISBN 0-7918-1345-2; TRN: IM9548%%191
- Resource Relation:
- Conference: Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Fluid sloshing and fluid-structure interaction 1995. PVP-Volume 314; Ma, D.C. [ed.] [Argonne National Lab., IL (United States)]; Tani, J. [ed.] [Tohoku Univ., Sendai (Japan). Inst. of Fluid Science]; Brochard, D. [ed.] [C.E.A. Centre d`Etudes de Saclay, Gif sur Yvette (France). Inst. National des Sciences et Techniques Nucleaires]; Fujita, K. [ed.]; PB: 178 p.
- Country of Publication:
- United States
- Language:
- English
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