In this paper, firstly, acceleration-time histories were generated by varying strong motion duration in the frequency domain for application to a seismically isolated nuclear power structure, so as to examine the effects of strong motion duration on the behavior of the structure. Secondly, real recorded earthquakes were modified to match the target response spectrum based on the revised SRP 3.7.1(2007) and the modified time histories were applied to the analysis of a seismically isolated nuclear power structure. The obtained values of acceleration and displacement responses of the structure were, finally, compared with the values obtained in case of applying acceleration-time histories generated in the frequency domain to the structure.

• 김현욱(한수원 중앙연구원 플랜트건설기술연구소) | Kim, Hyun-Uk1 Corresponding author
• 주광호(한수원 중앙연구원 플랜트건설기술연구소) | Joo, Kwang-Ho
• 노상훈(한수원 중앙연구원 플랜트건설기술연구소) | Noh, Sang-Hoon
• 정창균(캘리포니아 주립대학교 데이비스 캠퍼스) | Jung, Chang-Gyun