On the dimensioning of viscous dampers for the mitigation of the earthquake-induced effects in moment-resisting frame structures |
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Authors: | Michele Palermo Saverio Muscio Stefano Silvestri Luca Landi Tomaso Trombetti |
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Institution: | 1. Department DICAM, University of Bologna, Viale Risorgimento 2, 40136, Bologna, Italy
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Abstract: | The effectiveness of viscous dampers in mitigating the seismic excitation impacts upon building structures has been widely proved. Recently, with reference to the specific case of equal mass, equal stiffness, shear-type structures, the authors developed a direct practical procedure which gives the mechanical characteristics of the manufactured viscous dampers capable of providing the frame structure with a prescribed value of the first damping ratio. In this paper, a comprehensive rational framework is presented, which allows to formally extend the validity of the proposed procedure to the more realistic case of a generic moment-resisting frame structure. Also the influence of various lateral stiffness distributions is investigated. |
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