阪神・淡路大震災における電気鉄道用変電設備の被害分析と耐震対策 Analysis of the Damage to Traction Substations by the Large-Magnitude Hanshin-Awaji Earthquake and Earthquake-proof Design Method

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Railway structures and traction substations suffered much damage by the Large-Magnitude Hanshin-Awaji Earthquake in 1995. In electric railway substations, structures were cracked, also a number of pieces of equipment such as transformers and silicon rectifiers were damaged, insulation oil leaked, base anchorbolts were cut, and high-voltage equipment supports inclined, and insulators cracked because of crack in the ground and uneven subsidence. This report describes the survey results of damaged traction substations and explains an earthquake-proof design method for traction substation equipment.<br>We surveyed natural frequencies of traction substations equipment below 170kV. This survey showed that natural frequencies of equipment below 170kV were in relatively high frequency area (about 10-20Hz) than those of equipment above 170kV. As the real dominant frequency of earthquake is several Hz, these equipments rarely cause resonance due to earthquake move, and moving responses are weak also.<br>From the analysis of the gliding phenomena of heavy equipment, it is found that the horizontal acceleration is in the range of 0.4-0.6G. So anchorbolts should be protected from large bending moment. Definite plans are using longer anchor-sockets, stuffing gaps between equipment and base and removing anti-vibration rubber plates.

収録刊行物

  • 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society  

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 120(1), 96-103, 2000-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10004296735
  • NII書誌ID(NCID)
    AN10012320
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09136339
  • NDL 記事登録ID
    4955848
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-1608
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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