（34） 強風時観測記録により同定した超高層免震建物の構造特性と居住性評価予測

機関リポジトリ 日本建築学会

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タイトル別名
  • PREDICTION OF HABITABILITY TO VIBRATION BASED ON IDENTIFICATION MODELS OF A HIGHRISE SEISMICALLY ISOLATED BUILDING USING STRONG WIND OBSERVATION RECORDS

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抄録

We observed wind and acceleration of the actual building with seismic isolation structure, and the observed response showed nonlinearbehavior. In order to identify an equivalent linear structural model for the maximum response acceleration, the identification methodmust be devised. Response analysis was performed by spectral modal analysis, which is often used to study wind response. Themaximum response acceleration corresponded well with the observed value, but the standard deviation deviated, so the equivalentlinear model should be applied limitedly depending on the purpose. A slight difference in the relationship between wind speed andresponse acceleration has a great influence on the evaluation of habitability. On the other hand, even if the mode of the seismic isolationlayer changes, the evaluation is not greatly affected. A parameter study of attenuation constant and mass was performed, and the rangeof change in evaluation value due to structural model errors was shown.

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