{"_buckets": {"deposit": "de027910-1ee4-4dcd-a8c6-fabd1091537f"}, "_deposit": {"id": "28298", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28298"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028298", "sets": ["456", "1590"]}, "item_7_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Use of Spatial Statistics Parameters for Characteristics Evaluation of Cracked Concrete in Core Test"}]}, "item_7_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2013-10", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "63", "bibliographicPageStart": "57", "bibliographicVolumeNumber": "66", "bibliographic_titles": [{"bibliographic_title": "新潟大学農学部研究報告"}, {"bibliographic_title": "新潟大学農学部研究報告", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "コンクリート損傷は外部環境の影響を受けて進行し、圧縮強度試験に代表される力学特性から評価されることが多い。凍結融解損傷に代表されるひび割れの発達したコンクリートでは、十分に力学特性の観点から損傷度を評価できていないのが現状である。本論では、ひび割れ損傷の進行したコンクリート・コアの圧縮破壊挙動を三次元画像解析とAE 法により詳細評価し、ひび割れ損傷の進行が力学特性へ及ぼす影響について考察した。コンクリート・コアは凍害損傷が顕在化した開水路構造物から採取した。検討の結果、圧縮応力下のAE 発生挙動は、局所的に発達したひび割れ損傷に影響を受けることが明らかになった。定量評価にはAE パラメータの有効性が確認された。ワイブル解析を利用して画像解析より求めた変形挙動とAE との関係を検討した結果、両指標の相互関連が示唆された。", "subitem_description_type": "Abstract"}, {"subitem_description": "Damage in concrete grows due to the environmental effects. For detailed inspection of concrete damages, unconfined compression tests have been frequently conducted. However, the mechanical properties are not good enough for practical evaluation of damage degree in cracked concrete, such as Freeze-Thawed damage. The concrete damages are affected by inner crack distribution. In this study, characteristics evaluation of compression process of cracked concrete is inspected with 3D-image analysis and acoustic emission. The core-samples were collected from a water canal of reinforced concrete, which has been strongly influenced by freeze and thawed process. The AE behavior of cracked concrete under compression was dependent on the degree of local crack distribution, and could be approximated by applying AE parameter. The results of image analysis suggested that deformation behavior of cracked concrete was localized. Thus, the deformation behavior in compression detected by 3D-analysis is clearly correlated with AE parameters identified by the Weibull analysis.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "162636", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Yamagishi, Shuntaro"}]}, {"nameIdentifiers": [{"nameIdentifier": "162637", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Suzuki, Tetsuya"}]}, {"nameIdentifiers": [{"nameIdentifier": "162638", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Morii, Toshihiro"}]}, {"nameIdentifiers": [{"nameIdentifier": "162639", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kawai, Takayuki"}]}]}, "item_7_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "新潟大学農学部"}]}, "item_7_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00183393", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03858634", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "山岸, 俊太朗"}], "nameIdentifiers": [{"nameIdentifier": "162632", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "鈴木, 哲也"}], "nameIdentifiers": [{"nameIdentifier": "162633", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "森井, 俊広"}], "nameIdentifiers": [{"nameIdentifier": "162634", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "河合, 隆行"}], "nameIdentifiers": [{"nameIdentifier": "162635", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "66(1)_57-63.pdf", "filesize": [{"value": "1.8 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1800000.0, "url": {"label": "66(1)_57-63.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/28298/files/66(1)_57-63.pdf"}, "version_id": "f79aee28-a05d-463c-b96e-75c99dce61ae"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "ひび割れ損傷", "subitem_subject_scheme": "Other"}, {"subitem_subject": "コンクリート", "subitem_subject_scheme": "Other"}, {"subitem_subject": "圧縮破壊", "subitem_subject_scheme": "Other"}, {"subitem_subject": "画像解析", "subitem_subject_scheme": "Other"}, {"subitem_subject": "AE", "subitem_subject_scheme": "Other"}, {"subitem_subject": "crack", "subitem_subject_scheme": "Other"}, {"subitem_subject": "concrete", "subitem_subject_scheme": "Other"}, {"subitem_subject": "compression test", "subitem_subject_scheme": "Other"}, {"subitem_subject": "image analysis", "subitem_subject_scheme": "Other"}, {"subitem_subject": "acoustic emission", "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": "空間統計パラメータを援用した損傷コンクリートの圧縮破壊特性評価", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "空間統計パラメータを援用した損傷コンクリートの圧縮破壊特性評価"}, {"subitem_title": "空間統計パラメータを援用した損傷コンクリートの圧縮破壊特性評価", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["456", "1590"], "permalink_uri": "http://hdl.handle.net/10191/23966", "pubdate": {"attribute_name": "公開日", "attribute_value": "2013-11-13"}, "publish_date": "2013-11-13", "publish_status": "0", "recid": "28298", "relation": {}, "relation_version_is_last": true, "title": ["空間統計パラメータを援用した損傷コンクリートの圧縮破壊特性評価"], "weko_shared_id": null}