掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 8-2巻 年： 1990年 頁： 1347-1352頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Kenji KAWANO, Yoshikazu YAMADA, Hirokazu IEMURA, K.VENKATARMANA タイトル（英）： RANDOM SEISMIC RESPONSE ANALYSIS OF OFFSHORE PLATFORM 抄録（英）：
Dynamic responses of an offshore platform to simultaneous loadings by random sea waves and seismic motions are presented. Sea waves are represented by the Bretshneider's power spectrum and the Morison equation which defines the wave forcing function. The Kanai-Tajimi's power spectrum is used for the horizontal ground acceleration due to earthquakes. The dynamic equation of motions is derived by the substructure method and the response analysis is carried out using the frequency-domain random vibration approach. The response quantities are evaluated using the principles of the first passage probabilities across specific barriers. It is shown that the effect of random sea waves is to enhance the reliabilities of off offshore platform against seismic loading. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集