Browse > Article
http://dx.doi.org/10.12989/sem.2010.35.6.759

Numerical assessment of seismic safety of liquid storage tanks and performance of base isolation system  

Goudarzi, Mohammad Ali (Civil Engineering Department, Lorestan University)
Alimohammadi, Saeed (Civil Engineering, University of Science and Culture)
Publication Information
Structural Engineering and Mechanics / v.35, no.6, 2010 , pp. 759-772 More about this Journal
Abstract
Seismic isolation is a well-known method to mitigate the earthquake effects on structures by increasing their fundamental natural periods at the expense of larger displacements in the structural system. In this paper, the seismic response of isolated and fixed base vertical, cylindrical, liquid storage tanks is investigated using a Finite Element Model (FEM), taking into account fluid-structure interaction effects. Three vertical, cylindrical tanks with different ratios of height to radius (H/R = 2.6, 1.0 and 0.3) are numerically analyzed and the results of response-history analysis, including base shear, overturning moment and free surface displacement are reported for isolated and non-isolated tanks. Isolated tanks equipped by lead rubber bearings isolators and the bearing are modeled by using a non-linear spring in FEM model. It is observed that the seismic isolation of liquid storage tanks is quite effective and the response of isolated tanks is significantly influenced by the system parameters such as their fundamental frequencies and the aspect ratio of the tanks. However, the base isolation does not significantly affect the surface wave height and even it can causes adverse effects on the free surface sloshing motion.
Keywords
liquid storage tank; seismic analysis; numerical analysis; base isolation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Kim, N.S. and Lee, D.G. (1995), "Pseudo-dynamic test for evaluation of earthquake performance of base-isolated liquid storage tanks", Eng. Struct., 17(3), 198-208.   DOI   ScienceOn
2 American Petroleum Institute API (1998), "Welded storage tanks for oil storage", API 650, American Petroleum Institute Standard, Washington D.C.
3 ANSYS Inc. (2005), ANSYS Multiphysics 10.0, Southpointe, 275 Technology Drive, Canonsburg, PA 15317.
4 Chalhoub, M.S. and Kelly, J.M. (1988), "Theoretical and experimental studies of cylindrical water tanks in base isolated structures", Report No. UCB/EERC-88/07, Berkeley.
5 Goudarzi, M.A. and Sabbagh-Yazdi, S.R. (2009), "Numerical Investigation on Accuracy of Mass Spring Models for Cylindrical Tanks under Seismic Excitation", Int. J. Civil Eng., 7(3), 190-202.
6 Goudarzi, M.A., Sabbagh-Yazdi, S.R. and Marx, W. (2010), "Investigation of sloshing damping in baffled rectangular tanks under dynamic excitation", Bull. Earthq. Eng., 8(4), 1055.   DOI   ScienceOn
7 Malhotra, P.K. (1997), "New methods for earthquake isolation of liquid-storage tanks", Earthq. Eng. Struct. D., 26, 839-847.   DOI   ScienceOn
8 Malhotra, P.K. (2006), "Earthquake induced sloshing in tanks with insufficient freeboard", Struct. Eng. Int., 16, 222-225.   DOI   ScienceOn
9 Malhotra, P.K., Wenk, T. and Wieland, M. (2000), "Simple procedure for seismic analysis of liquid storage tanks", Struct. Eng. Int., 10(3), 197-201.   DOI   ScienceOn
10 Shenton, H.W. and Hampton, F.P. (1999), "Seismic response of isolated elevated water tanks", J. Struct. Eng.-ASCE, 125, 965-976.   DOI
11 Shrimali, M.K. and Jangid, R.S. (2002), "Non-linear seismic response of base-isolated liquid storage tanks to bidirectional excitation", Nucl. Eng. Des., 217, 1-20.   DOI   ScienceOn
12 Shrimali, M.K. and Jangid, R.S. (2004), "Seismic analysis of base-isolated liquid storage tank", J. Sound Vib., 275, 59-75.   DOI   ScienceOn
13 Veletsos, A.S. (1984), "Seismic response and design of liquid storage tanks", Guidelines for Seismic Design of Oil & Gas Pipelines System, ASCE, NY, 255-370.
14 Veletsos, A.S. and Young, T. (1977), "Earthquake response of liquid storage tanks", Proceedings of the 2nd Engineering Mechanics Specialty Conference, ASCE, Raleigh, 1-24.
15 Goudarzi, M.A., Sabbagh-Yazdi, S.R. and Marx, W. (2010), "Seismic analysis of hydrodynamic sloshing force on storage tank roof", J. Earthq. Spect., 26(1), 131-152.   DOI   ScienceOn
16 Haroun, M.A. and Housner, G.W. (1981), "Seismic design of liquid storage tanks", J. Tech. Counc., ASCE, 107(1), 191-207.
17 Housner, G.W. (1954), "Earthquake pressures on fluid containers", Report No. 081-095, Eighth Technical Report under Office of Naval Research, Project Designation, California Institute of Technology, Pasadena, California.
18 Housner, G.W. (1957), "Dynamic pressures on accelerated fluid containers", B. Seismol. Soc. Am., 47(1), 15-35.
19 Housner, G.W. (1963), "Dynamic analysis of fluids in containers subjected to acceleration", Report No. TID 7024, Nuclear Reactors and Earthquakes, U.S. Atomic energy Commission, Washington D.C.
20 Jadhav, M.B. and Jangid, R.S. (2006), "Response of base-isolated liquid storage tanks to near-fault motions", Struct. Eng. Mech., 23, 615-634.   DOI
21 Kelly, T.E. and Mayes, R.L. (1989), "Seismic isolation of storage tanks", Proceedings of Seismic Engineering: Research and Practice, ASCE, San Francisco, CA.
22 Wang, Y.P., Teng, M.C. and Chung, K.W. (2001), "Seismic isolation of rigid cylindrical tanks using friction pendulum bearings", Earthq. Eng. Struct. D., 30, 1083-1099.   DOI   ScienceOn
23 Wozniak, R.S. and Mitchell, W.W. (1978), "Basis of seismic design provisions for welded steel oil storage tanks", American Petroleum Institute 43rd Midyear Meeting, Session on Advances in Storage Tank Design, Toronto, Canada.
24 Malhotra, P.K. (2005), "Sloshing loads in tanks with insufficient freeboard", Earthq. Spect., 21, 1185-1192.   DOI   ScienceOn