The dynamics of an elastic structure coupled with a rocking wall |
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| Authors: | Nicos Makris Mehrdad Aghagholizadeh |
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| Institution: | Department of Civil, Environmental and Construction Engineering, University of Central Florida, Orlando, FL, USA |
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| 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. |
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| Keywords: | rocking wall dynamic analysis recentering seismic protection earthquake engineering |
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