STUDY ON THREE- DIMENSIONAL SEISMIC ISOLATION SYSTEM FOR NEXT-GENERATION NUCLEAR POWER PLANT: HYDRAULIC THREE-DIMENSIONAL BASE ISOLATION SYSTEM

机译：下一代核电站的三维地震隔离系统研究：液压三维基准地震隔离系统

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In Japan, a number of three-dimensional base isolation systems have been studied for application to new nuclear plant concepts such as the FBR, but these efforts have not so far yielded practically applicable results. The impeding factor has been the difficulty of obtaining an adequate capacity on the vertical isolator for supporting the mass of an actual structure and for suppressing rocking motion. In this paper, we propose a new three-dimensional isolation system that should solve the foregoing problem. The system is constituted of a set of hydraulic load-carrying cylinders connected to accumulator units containing compressed gas, a set of rocking-suppression cylinders connected in series, and a laminated rubber bearing laid under each load-carrying cylinder. The present paper covers a basic examination for applying the proposed system to a FBR plant now under development in Japan. In order to verify expected system performance, the load-carrying cylinders were first tested independently of rocking-suppression cylinders, and this was followed by integrated dynamic test of the system incorporating both load-carrying and rocking suppression cylinders. Response analysis reflecting the test results has indicated the proposed system to be well applicable to the envisaged commercialized FBR. The study was undertaken as part of a research and development project sponsored by the government for realizing a three-dimensional seismic isolation system applicable to future FBR.

机译：在日本，已经对许多三维基础隔离系统进行了研究，以应用于诸如FBR之类的新核电站概念，但是到目前为止，这些努力尚未产生实际可应用的结果。阻碍因素是难以在垂直隔离器上获得足够的容量来支撑实际结构的质量并抑制摇摆运动。在本文中，我们提出了一种新的三维隔离系统，可以解决上述问题。该系统由一组液压承载缸连接，该液压承载缸连接到包含压缩气体的蓄能器单元，一组串联连接的摇动抑制缸以及在每个承载缸下方放置的层压橡胶轴承。本文涵盖了将建议的系统应用于目前正在日本开发的FBR工厂的基本检查。为了验证预期的系统性能，首先对独立于摇摆抑制油缸的负载油缸进行了测试，然后对包含负载和抑制摇摆油缸的系统进行了集成动态测试。反映测试结果的响应分析表明，拟议的系统非常适用于设想的商业化FBR。该研究是政府资助的一项研发项目的一部分，旨在实现适用于未来FBR的三维地震隔离系统。

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《ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Seismic Engineering v.2; 20040725-20040729; San Diego,CA; US》|2004年|P.35-42|共8页
会议地点 San Diego CA(US)
作者
Takahiro Shimada; Tatsuya Fujiwaka; Satoshi Moro;
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作者单位

Ishikawajima-Harima Heavy Industries Co., Ltd. Yokohama Japan;

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原文格式 PDF
正文语种 eng
中图分类地震学;
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机译：地震隔离系统的测试，许可和规范要求（核电厂）

STUDY ON THREE- DIMENSIONAL SEISMIC ISOLATION SYSTEM FOR NEXT-GENERATION NUCLEAR POWER PLANT: HYDRAULIC THREE-DIMENSIONAL BASE ISOLATION SYSTEM

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