{"created":"2023-06-19T12:45:44.911690+00:00","id":5577,"links":{},"metadata":{"_buckets":{"deposit":"db6cbf0d-44c9-40b2-b4c4-a77e85c4beb1"},"_deposit":{"created_by":3,"id":"5577","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"5577"},"status":"published"},"_oai":{"id":"oai:tokyo-metro-u.repo.nii.ac.jp:00005577","sets":["521:613:616:763:1321"]},"author_link":["18532","18531"],"item_3_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Earthquake Damage and Seismic Response Analysis of Underground Subway Structures during the 1995 Great Hanshin-Awaji Earthquake"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"61","bibliographicPageEnd":"48","bibliographicPageStart":"25","bibliographic_titles":[{"bibliographic_title":"総合都市研究"}]}]},"item_3_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Iwatate, Takahiro"}],"nameIdentifiers":[{"nameIdentifier":"18532","nameIdentifierScheme":"WEKO"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"1995年1月17日早朝に襲った大地震は、死者6000人以上、被害家屋11万戸以上、新幹線、高速道路、港湾、地下鉄、都市ライフライン施設等、都市の中枢をなす土木・建築構造物に致命的な打撃を与え、我々に「都市直下型地震」の恐ろしさを見せつけると同時に、今後の土木・建築構造物の耐震設計、都市の防災対策のあり方に大きな問題を投げかけた。東京都立大学では、地震直後に地震被害調査を行い、その後、土木学会耐震工学委員会の地下構造物の被害調査グループに参加し、地下構造物を対象に被害の調査を実施し、被害の分析と原因の検討を行ってきた。これら地下構造物の被害の内、特に被害の大きかったものは、いわゆる「震災の帯」と言われた震度7の区域や海岸線の液状化地盤に集中している。これらの被害は、地震動の大きさだけでなく、地形・地質条件、表層地盤の増幅特性の影響を強く受けているものと考える。本報告では、地下鉄構造物の被害とその原因について検討した結果について述べる。被害を受けた地下鉄構造物の大部分は、開削工法で施工されたものであり、構造的には鉄筋コンクリート造の函型断面であり、中間に中柱がある構造である。被害形態としては、この中柱の損壊(せん断破壊と曲げ破壊)が圧倒的に多かった。地下鉄構造物の被害原因について検討した結果、開削トンネルの被害の支配的な要因は水平地震動による地盤のせん断変形とそれに伴う上載土のせん断荷重が構造物に強く作用したためだと考える。さらに、中柱と上下床版とが連結ヒンジ構造でなく剛結に近かった事が、この部分に大きなせん断力が生じる要因となったと考えられる。上沢駅舎、大開駅舎の被害について、地盤の非線形性を考慮し、2次元地震応答解析法および応答変位法により検討した結果、中柱の破壊は水平地震動による周辺地盤の影響を強く受け、設計値以上の水平力、特に上載土の慣性力によるせん断荷重が大きく作用し、せん断耐力不足により破壊に至った事が推定できた。","subitem_description_type":"Abstract"},{"subitem_description":"Underground subway structures in Kobe suffered severe damage during the great Hanshin-Awaji Earthquake. Major damage occurred at RC intermediate columns of concrete box culvert. Among them，Kamisawa station of Kobe Shiei Line and Daikai station of Kobe Rapid Transit Railway Line are tipical examples that completely collapsed due to the earthquake motion. Judging from the damage patterns，strong horizontal forces were imposed on the structures from the subsolis，which caused the shear deformation of the box frame structures. Investigation of the damage mechanism were made through the analytical approach by use the seismic data. It is concluded that the center columns were collapsed by the lack of the load carrying capacity against shear deformation.","subitem_description_type":"Abstract"}]},"item_3_description_40":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"postprint","subitem_description_type":"Other"}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京都立大学都市研究センター"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00134354","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03863506","subitem_source_identifier_type":"ISSN"}]},"item_3_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岩楯, 敞広"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-03-17"}],"displaytype":"detail","filename":"20024-061-003.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"20024-061-003.pdf","url":"https://tokyo-metro-u.repo.nii.ac.jp/record/5577/files/20024-061-003.pdf"},"version_id":"ac19c9b1-20e9-42c8-9041-9c5b15cb67ca"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Earthquake Damage","subitem_subject_scheme":"Other"},{"subitem_subject":"The Great Hanshin-Awaji Earthquake","subitem_subject_scheme":"Other"},{"subitem_subject":"Underground Subway Structure","subitem_subject_scheme":"Other"},{"subitem_subject":"Seismic Response Analysis","subitem_subject_scheme":"Other"},{"subitem_subject":"Seismic Deformation Method","subitem_subject_scheme":"Other"},{"subitem_subject":"地震被害","subitem_subject_scheme":"Other"},{"subitem_subject":"阪神・淡路大震災","subitem_subject_scheme":"Other"},{"subitem_subject":"地下鉄構造物","subitem_subject_scheme":"Other"},{"subitem_subject":"地震応答解析","subitem_subject_scheme":"Other"},{"subitem_subject":"応答変位法","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"阪神・淡路大震災の地下鉄構造物の被害と被害原因の検討","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"阪神・淡路大震災の地下鉄構造物の被害と被害原因の検討"}]},"item_type_id":"3","owner":"3","path":["1321"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-03-31"},"publish_date":"2017-03-31","publish_status":"0","recid":"5577","relation_version_is_last":true,"title":["阪神・淡路大震災の地下鉄構造物の被害と被害原因の検討"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-19T17:13:39.545634+00:00"}