<P><B>Abstract</B></P> <P>The floor response spectra are calculated by constructing a numerical model (APR1400) equipped with base isolators of a bilinear material and a Bouc-Wen material, respectively, in order to inves...
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https://www.riss.kr/link?id=A107505160
2017
-
SCI,SCIE,SCOPUS
학술저널
138-147(10쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>The floor response spectra are calculated by constructing a numerical model (APR1400) equipped with base isolators of a bilinear material and a Bouc-Wen material, respectively, in order to inves...
<P><B>Abstract</B></P> <P>The floor response spectra are calculated by constructing a numerical model (APR1400) equipped with base isolators of a bilinear material and a Bouc-Wen material, respectively, in order to investigate the effect of the second hardening. The variations of the earthquakes are incorporated to the loads, and two different properties of the isolator materials are modeled. The second hardening behavior increases the stiffness of the isolator in the high strain regime and suppresses the displacement of the isolator. Therefore, the role of the base isolation device isolating the superstructure from the ground motion does not perform properly, which causes amplification of the floor response of the superstructure. In practice, the second hardening of the isolator material might need to be taken into account for designing the base isolation system.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The effect of variability in the isolation device and earthquake is evaluated. </LI> <LI> The variability in earthquake characteristics dominates the floor response spectrum. </LI> <LI> Bouc-Wen model is employed to consider the second hardening behavior of isolator. </LI> <LI> The second hardening behavior is evaluated at various PGA levels. </LI> </UL> </P>
Thermal stress analysis of silo in radioactive waste repository considering construction conditions