The Dynamics Of An Elastic Structure Coupled With A Rocking Wall

Keywords

dynamic analysis; earthquake engineering; recentering; rocking wall; seismic protection

Abstract

This paper investigates the dynamic response of an elastic single-degree-of-freedom oscillator coupled with a rocking wall. Both configurations of a stepping rocking wall and a pinned rocking wall that have been reported in the literature are examined. The full nonlinear equations of motions are derived, and the paper shows through a comprehensive parametric analysis that the coupling with a rocking wall has mixed results on suppressing the dynamic response of the elastic oscillator. The stepping rocking wall is most effective in suppressing displacements of relative flexible structures with a heavier wall being most effective. In contrast, the pinned wall amplifies the displacements along a wide range of the spectrum with a heavier wall being most detrimental. This happens partly because in a pinned wall the moment from its weight works against stability. Copyright © 2016 John Wiley & Sons, Ltd.

Publication Date

5-1-2017

Publication Title

Earthquake Engineering and Structural Dynamics

Volume

46

Issue

6

Number of Pages

945-962

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/eqe.2838

Socpus ID

85003875512 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85003875512

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