[パネル講演3]構造物の減衰 : 実測値と設計値(パネル討論会 : 構造物の動設計と減衰値(建築,土木,機械の実例))

概要

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The author summarizes an overview of the structural damping measurement and the application to the dynamic design of various structures. Particular investigation is focused on the seismic design of buildings, nuclear facilities, power plant structures, mechanical equipments and pipings. First, examples of practical damping evaluation were surveyed in terms of measurement and testing. Compared with other estimated dynamic parameters such as natural frequencies, damping values have so much scattered distribution. Then, some stochastic technique shall be taken in order to obtain adequate design value. Second, the design damping value which have been hitherto proposed for the seismic design code for typical structures is discussed. Also, damping design value of the buildings among other countries are compared. Finally, damping values determined for the seismic design of nuclear and nonnuclear structures are introduced. The design values for such structures have to be selected in terms of seismic input level which is represented as an importance factor.
一般社団法人日本機械学会の論文
2002-01-11