Three Dimensional Dynamic Analysis of Water Storage Tanks Considering FSI Using FEM
In this study, to investigate and analyze the seismic behavior of concrete in open rectangular water storage tanks in two-dimensional and three-dimensional spaces, the Finite Element Method has been used. Through this method, dynamic responses can be investigated together in fluid storages system. Soil behavior has been simulated using tanks boundary conditions in linear form. In this research, in addition to flexibility of wall, the effects of fluid-structure interaction on seismic response of tanks have been investigated to account for the effects of flexible foundation in linear boundary conditions form, and a dynamic response of rectangular tanks in two-dimensional and three-dimensional spaces using finite element method has been provided. The boundary conditions of both rigid and flexible walls in two-dimensional finite element method have been considered to investigate the effect of wall flexibility on seismic response of fluid and storage system. Furthermore, three-dimensional model of fluid-structure interaction issue together with wall flexibility has been analyzed under the three components of earthquake. The obtained results show that two-dimensional model is also accurately near to the results of three-dimension as well as flexibility of foundation leads to absorb received energy and relative reduction of responses.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1317110Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 419
 ANSYS Inc. ANSYS help manual Version 11.1, (2004). Global headquarters, Southpointe, 275 Technology drive, Canonsburg, PA 15317.
 Chopra, A.K. (1995). Dynamics of structures. Prentice-Hall. Upper Saddle River. N.J.
 Ghaemian, M. and Ghobarah, A. (1997). Nonlinear seismic response of concrete gravity dams with dam-reservoir interaction. Journal of engineering structures, 21(4): 306-315.
 Ghaemmaghami, A.R. and Kianoush, M.R. (2009). Effect of wall flexibility on dynamic response of concrete rectangular tanks under horizontal and vertical ground motions. ASCE Journal of Structural Engineering, Accepted for publication.
 Haroun, M.A., and Tayel, M.A. (1985). Response of tanks to vertical seismic excitations. Earthquake Engineering and Structural Dynamics, 13: 583–595.
 Kianoush, M.R., and Chen, J.Z. (2006). Effect of vertical acceleration on response of concrete rectangular liquid storage tanks. Engineering Structures, 28(5): 704–715.
 Mcverry, G.H., (1979). Frequency domain identifications of structural models from earthquake records. Report No. EERL 79-02, California Institute of Technology.
 Mirzabozorg, H., Khaloo, A.R., and Ghaemian, M. (2003). Staggered solution scheme for three dimensional analysis of dam reservoir interaction. Dam Engineering, 14(3): 147–179.
 Rashed, A.A., and Iwan W.D., (1984). Hydrodynamic pressure on short-length gravity dams. ASCE Journal of Engineering Mechanics, 110(9): 1264-1283.
 Sung, T.Y., (1953). Vibrations in semi-infinite solids due to periodic surface loading. ASTM STP, 156: 35-68.
 Tait, M.J., El Damatty, A.A., Isyumov N. and Siddique M.R., (2005). Numerical flow models to simulate tuned liquid dampers (TLD) with slat screens. Journal of Fluids and Structures, 20(8): 1007-1023.
 Veletsos, A.S., and Tang, Y. (1986). Dynamics of vertically excited liquid storage tanks. ASCE Journal of Structural Engineering, 112(6): 1228–1246.
 Veletsos, A.S., and Yang, J.Y. (1977). Earthquake response of liquid storage tanks-advances in civil engineering through mechanics. ASCE Proceedings of the second engineering mechanics specially conference, Raleigh, NC: 1-24.
 Westergaard, H.M. (1938). Water pressure on dams during earthquakes. Transaction, American society of civil engineers, 98: 418-433.
 Yang, J.Y. (1976). Dynamic behavior of fluid–tank systems. Ph.D. thesis, Department of Civil Engineering, Rice.
 ACI 350, (2006). Code Requirements for Environmental Engineering Concrete Structures and Commentary, an ACI Standard, USA.