期刊
NUCLEAR ENGINEERING AND DESIGN
卷 322, 期 -, 页码 138-147出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.nucengdes.2017.06.004
关键词
Floor response spectrum; Second hardening; Nuclear power plant; Base isolation; Lead rubber bearing
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry & Energy, Republic of Korea [2011T100200080]
- Korea Ministry of Land, Infrastructure and Transport (MOLIT)
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. (C) 2017 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据