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Title: Response analysis of rigid structures rocking on viscoelastic foundation
Authors: Palmeri, Alessandro
Makris, Nikos
Keywords: Uplifting
Viscoelastic foundation
Seismic stability
Stepping bridges
Issue Date: 2008
Publisher: © John Wiley & Sons, Ltd.
Citation: PALMERI, A. and MAKRIS, N., 2008. Response analysis of rigid structures rocking on viscoelastic foundation. Earthquake Engineering and Structural Dynamics, 37 (7), pp. 1039 - 1063.
Abstract: In this paper the rocking response of slender/rigid structures stepping on a viscoelastic foundation is revisited. The study examines in depth the motion of the system with a non-linear analysis that complements the linear analysis presented in the past by other investigators. The non-linear formulation combines the fully non-linear equations of motion together with the impulse-momentum equations during impacts. The study shows that the response of the rocking block depends on the size, shape and slenderness of the block, the stiffness and damping of the foundation and the energy loss during impact. The effect of the stiffness and damping of the foundation system along with the influence of the coefficient of restitution during impact is presented in rocking spectra in which the peak values of the response are compared with those of the rigid block rocking on a monolithic base. Various trends of the response are identified. For instance, less slender and smaller blocks have a tendency to separate easier, whereas the smaller the angle of slenderness, the less sensitive the response to the flexibility, damping and coefficient of restitution of the foundation.
Description: Closed Access. This article was published in the journal, Earthquake Engineering and Structural Dynamics [© John Wiley & Sons, Ltd.] and the definitive version is available at: http://dx.doi.org/10.1002/eqe.800
Version: Accepted for publication
DOI: 10.1002/eqe.800
URI: https://dspace.lboro.ac.uk/2134/11355
Publisher Link: http://dx.doi.org/10.1002/eqe.800
ISSN: 0098-8847
Appears in Collections:Closed Access (Architecture, Building and Civil Engineering)

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