Rigid-Body Response of Base-Isolated Structures

by Iradj G. Tadjbakhsh, (M.ASCE), Prof.; Dept. of Civ. Engrg., Rensselaer Polytechnic Inst., Troy, N.Y.,
Jonathan J. Ma, Research Asst.; Dept. of Civ. Engrg., Rensselaer Polytechnic Inst., Troy, N.Y.,


Serial Information: Journal of the Structural Division, 1982, Vol. 108, Issue 8, Pg. 1806-1814


Document Type: Journal Paper

Abstract: The problem of control of rigid body response of structural systems such as nuclear islands, which are mounted on a gird of bearings with three dimensional damping and stiffness properties, is analyzed. A parametric study is carried out to show the effects of the dimensionless parameters of the foundation on the transmissibilities of the structure due to harmonic ground motion. The characteristics of an optimal base isolation are discussed and results are presented in a form which may be of use in preliminary designs.

Subject Headings: Base isolation | Rigid body dynamics | Structural response | Structural systems | Parameters (statistics) | Ground motion | Structural control | Structural analysis

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