35 偏心を有する架構建築の地震応答に対する履歴ダンパーの適用効果

概要

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To reduce structural responses caused by earthquake excitations, various kinds of damper systems are introduced to building structures. However, most of structural design for installing damper systems have been investigated only for symmetric frame structures. To avoid large displacements at the flexible-edge caused by torsional responses, reductions of eccentricity are aimed on general design of asymmetric structures. The concepts of those structural design are based on syntheses to make dynamic behaviors of building structures as to be within elastic region, so inelastic behaviors of stiffness and strength asymmetric frame structures have not been considered sufficiently. In this paper, an emphasis is put on investigations for effectiveness of hysteretic dampers introduced to stiffness and strength asymmetric frame structures. To investigate inelastic behaviors of hysteretic dampers installed to asymmetric frame structures, numerical simulations are executed. As a result, it is assured that, by adequatly locating hysteretic dampers to the asymmetric frame structures, inelastic structural responses regarding to the maximum displacements can be reduced to the same level with that of symmetric frame structures.
一般社団法人日本建築学会の論文
1998-03-20