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An Experimental Verification of Seismic Structural Control: Using In‐Plane Oval Dampers
Author(s) -
Lee ChienLiang,
Wang YenPo,
Cai MengYan,
Kuan YuTung,
Huang GingHuei
Publication year - 2019
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.1085
Subject(s) - structural engineering , earthquake shaking table , damper , nonlinear system , acceleration , displacement (psychology) , frame (networking) , engineering , vibration , dissipative system , vibration control , structural system , physics , acoustics , mechanical engineering , psychology , classical mechanics , quantum mechanics , psychotherapist
As an effort to enhance the material utilization efficiency of metallic yielding dampers, this paper explores a new type of in‐plane oval damper fabricated to deform inelastically in an in‐plane flexural mode. Seismic performance assessment of the proposed damper was conducted via shaking table tests of a five‐story steel building frame under the Kobe earthquake with various intensities. Significant reductions of the structural acceleration and displacement responses have been achieved with the proposed device implemented, suggesting that the effectiveness and feasibility of using the in‐plane oval energy‐dissipative device for earthquake protection of building structures. Moreover, a series of nonlinear time history analysis of the five‐story model frame corresponding to the tests was further performed. The inelastic behavior of the proposed dampers was simulated by the Bouc‐Wen's model and the predicted structural vibration responses were in turn compared with the experimental results. The simulated structural responses with identified parameters of the Bouc‐Wen's model agree well with the experimental results, indicating that the proposed analytical model for nonlinear dynamic analysis of inelastic systems is adequate.