The dynamics of an elastic structure coupled with a rocking wall | Zendy

Makris Nicos | Zendy; Aghagholizadeh Mehrdad | Zendy

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The dynamics of an elastic structure coupled with a rocking wall

Author(s) -

Makris Nicos,

Aghagholizadeh Mehrdad

Publication year - 2017

Publication title -

earthquake engineering and structural dynamics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.218

H-Index - 127

eISSN - 1096-9845

pISSN - 0098-8847

DOI - 10.1002/eqe.2838

Subject(s) - nonlinear system , coupling (piping) , structural engineering , parametric statistics , moment (physics) , shear wall , dynamics (music) , stability (learning theory) , mechanics , physics , classical mechanics , engineering , mathematics , computer science , mechanical engineering , acoustics , statistics , quantum mechanics , machine learning

Summary 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.

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