同定および可変ゲイン制震の振動台実験

概要

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In controlling seismic responses of building structures, there are many points to be duly considered for the safety of structures and the stability of controller. In this study, three points were mainly discussed for stable control experiments; structural identification, model reduction and AMD capacity. Firstly, subspace identification method was adopted for the identification of the specimen structure, due to the ability of providing accurate state-space models for multivariable linear systems directly from input-output data including measurement noises. Secondly, in order to prevent the spillover phenomenon caused by model reduction, the specimen structure was modeled to a 2-degree-of-freedom system by using internal balanced realization reduction method. Finally, the control algorithm with variable gain was derived in order to use efficiently AMD system under the constraint condition of AMD stroke. The seismic response control experiments were performed using a 5-storied building structure model consisted of H-shaped steel beams and bearing rubbers with about 2tonf weight on each story.
社団法人日本建築学会の論文
2000-01-30