Dynamic Response of Flexibly Supported Liquid‐Storage Tanks
Publication: Journal of Structural Engineering
Volume 118, Issue 1
Abstract
A refined method is presented for evaluating the impulsive components of response of upright, cylindrical liquid‐storage tanks that are supported through a rigid circular foundation at the surface of a homogeneous, elastic half‐space and are excited horizontally at the base. The convcctive components of response are insensitive to the flexibilities of the tank wall and supporting soils, and may be computed considering both the tank and the supporting medium to be rigid. Critical responses are evaluated for harmonic and seismic excitations over wide ranges of tank proportions and soil stiffnesses, and the results are used to elucidate the effects of soil‐structure interaction and to assess the adequacy of a previously reported simpler method. In addition to the exact method, an approximate technique is proposed with which the contributions of the higher modes may be evaluated readily. It is shown that soil‐structure interaction may reduce significantly the critical responses of broad tanks, but may increase those of tall, stiff tanks that have high fundamental natural frequencies. It is further shown that for tanks with height‐to‐radius ratios of the order of 1.5 or less, the higher modes of vibration are insignificant contributors to the overall response. Such systems may be analyzed reliably by the previously proposed simpler method.
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References
1.
Haroun, M. A., and Housner, G. W. (1981). “Seismic design of liquid storage tanks.” J. Tech. Councils, ASCE, 107(1), 191–207.
2.
Housner, G. W. (1957). “Dynamic pressures on accelerated fluid containers.” Bull. Seismol. Soc. Am., 47(1), 15–35.
3.
Tang, Y. (1986). “Studies of dynamic response of liquid storage tanks,” thesis presented to Rice University, at Houston, Tex., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
4.
Veletsos, A. S. (1977). “Dynamics of structure‐foundation systems,” Structural and Geotechnical Mechanics, W. J. Hall, ed., Prentice‐Hall, Inc., Englewood Cliffs, N.J., 333–361.
5.
Veletsos, A. S. (1984). “Seismic response and design of liquid storage tanks.” Guidelines for the seismic design of oil and gas pipeline systems, Technical Council on Lifeline Earthquake Engineering, ASCE, New York, N.Y., 255‐370 and 443–461.
6.
Veletsos, A. S., and Meek, J. W. (1974). “Dynamic behavior of building‐foundation systems.” J. Earthquake Engrg. Struct. Dyn., 3, 127–138.
7.
Veletsos, A. S., and Nair, V. V. D. (1974). “Seismic interaction of structures on hysteretic foundations.” J. Struct. Engrg. Div., ASCE, 101(1), 109–129.
8.
Veletsos, A. S., and Tang, Y. (1987). “Rocking response of liquid storage tanks.” J. Engrg. Mech., ASCE, 113(11), 1774–1792.
9.
Veletsos, A. S., and Tang, Y. (1990). “Soil‐structure interaction effects for laterally excited liquid‐storage tanks.” Earthquake Engrg. Struct. Dynamics, 19, 473–496.
10.
Veletsos, A. S., and Verbic, B. (1973). “Vibration of visco‐elastic foundations.” J. Earthquake Engrg. Struct. Dyn., 2, 87–102.
11.
Veletsos, A. S., and Verbic, B. (1974). “Basic response functions for elastic foundations.” J. Engrg. Mech. Div., ASCE, 100(2), 189–202.
12.
Wolf, J. P., and Somaini, D. R. (1986). “Approximate dynamic model of embedded foundation in time domain.” Earthquake Engrg. Struct. Dynamics, 14, 683–703.
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Copyright © 1992 ASCE.
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Published online: Jan 1, 1992
Published in print: Jan 1992
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