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首页> 外文会议>International Conference on Structural Mechanics in Reactor Technology >DEVELOPMENT OF EVALUATION METHOD FOR SEISMIC ISOLATION SYSTEMS OF NUCLEAR POWER FACILITIES - EXPERIMENTAL STUDY ON STRUCTURAL CHARACTERISTICS OF BASE ISOLATED FOUNDATION COUPLED WITH SEISMIC ISOLATOR -
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DEVELOPMENT OF EVALUATION METHOD FOR SEISMIC ISOLATION SYSTEMS OF NUCLEAR POWER FACILITIES - EXPERIMENTAL STUDY ON STRUCTURAL CHARACTERISTICS OF BASE ISOLATED FOUNDATION COUPLED WITH SEISMIC ISOLATOR -

机译：核动力设施隔震体系评估方法的研究进展-隔震耦合的地基隔离基础结构特性试验研究。

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摘要

In this study, static loading tests were conducted in order to investigate ultimate seismic performance of reinforced concrete foundation (pedestal) for seismic isolated nuclear power plant. Half-scale four test specimens, which consist of Lead Rubber Bearings (LRBs) of 800mm in diameter and reinforced concrete pedestals of 1200mm × 1200mm in horizontal view, were used with the parameters of cyclic pattern of axial stress of seismic isolator, existence or non-existence of reinforcing bars at the top of pedestal, and concrete compressive strength. As a result of the study, it was confirmed that the reinforced concrete pedestal shows structural integrity within design level loads. In ultimate level loads, no damage was observed in the case of non-variable axial stress in the area near the center of buildings, and no brittle failure was observed and supporting function of axial loads was retained in the area near the outer edge of buildings, where variable axial stress in ultimate level was extremely large.
机译：在这项研究中，进行了静态载荷测试，以研究用于地震隔离核电站的钢筋混凝土基础（基座）的极限抗震性能。使用四个半试样，包括直径为800mm的铅橡胶轴承（LRB）和水平视图为1200mm×1200mm的钢筋混凝土基座，并带有隔震器轴向应力的循环模式参数，无论是否存在-基座顶部的钢筋的存在以及混凝土的抗压强度。研究结果证实，钢筋混凝土基座在设计水平荷载下显示出结构完整性。在极限水平荷载下，在建筑物中心附近的区域中不变的轴向应力情况下未观察到损坏，并且未观察到脆性破坏，并且在建筑物外边缘附近的区域中保持了轴向载荷的支撑功能，最终水平的可变轴向应力非常大。

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  • 会议地点 Manchester(GB)
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    Hideyoshi Watanabe; Hiroyuki Narihara; Yuji Aikawa; Masakazu Jimbo; Kunihiko Sato; Shinji Kosugi; Yasuo Ookouchi;

  • 作者单位

    Building System and Material Research Section Building Engineering Research Institute Technology Center Taisei Corporation Japan;

    Nuclear Facilities Engineering II Nuclear Facilities Division Taisei Corporation Japan;

    Plant Design Engineering Dept. Isogo Nuclear Engineering Center Toshiba Corporation Japan;

    Nuclear Plant Designing Department Nuclear Energy Systems Division Energy Environment Mitsubishi Heavy Industries Ltd. Japan;

    Aseismic Engineering Sec. Nuclear Plant Engineering Dept. Hitachi-GE Nuclear Energy Ltd. Japan;

    Nuclear Power Plant Architectural Engineering Sect. Civil Architectural Engineering Dept. Chubu Electric Power Co. Inc. Japan;

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