摩擦支持配管系の地震応答解析 : 摩擦系応答スペクトルを用いた最大応答の推定

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This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities such as petro-chemical, oil refinery and nuclear power plants. Piping is generally put on the supporting structures. Therefore, frictional vibration occurs between piping and supporting system during seismic excitation. Special attention is focused on this nonlinear frictional dynamic responses of piping systems due to frictional vibration appearing among piping and supporting devices. Two mock-up piping structure models are excited by large scale shaking table. FEM models are made from the mock-up piping of shaking test, and modal parameters of linear system are calculated. The time history responses are calculated by nonlinear response analysis using calculated modal parameters. Friction response spectrum are proposed to calculate the maximum responses having frictional behavior. The maximum responses calculated by friction response spectrum are compared with the maximum responses obtained by experiment.
1998-03-25