{"created":"2023-06-20T14:06:33.631378+00:00","id":33,"links":{},"metadata":{"_buckets":{"deposit":"152d63d0-519b-4d34-9ba1-64e58ad66aa9"},"_deposit":{"created_by":2,"id":"33","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"33"},"status":"published"},"_oai":{"id":"oai:maebashi-it.repo.nii.ac.jp:00000033","sets":["6:7"]},"author_link":["141","142","143"],"item_2_alternative_title_18":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Experimental Study on Brittle Fracture of Processing Parts of Rebars in Concrete"}]},"item_2_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-10-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_2_date_granted_63":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2016-03-25"}]},"item_2_degree_grantor_61":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"前橋工科大学"}],"subitem_degreegrantor_identifier":[{}]}]},"item_2_degree_name_60":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（工学）"}]},"item_2_description_39":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"Thesis or Dissertation","subitem_description_type":"Other"}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The purpose of this study is to investigate the reasons behind the fracturing of bending part of rebars in ASR concrete, and also to determine the characteristics of the fatigue cycle of pressure-welded rebars in concrete.\\nThe results of this study show that:\\n(1) The fracturing of rebars subjected to expansion loads in ASR concrete can be attributed to cracks forming in rebars as a result of bending. The rebars are unlikely to fail provided that they are not notched and that the bending radius is at least twice their diameter.\\n(2) Carbonate stress corrosion cracking (CSCC) of rebars in ASR concrete is likely to occur if the concentration of the carbonate around bending part of rebars is in the range 1.5 mol/L?2.0 mol/L. The cracks of CSCC occurred in a rebar consist of both transgranular and intergranular cracks. The cracks of CSCC were identical to those of rebars failed in the ASR concrete of actual structures. \\n(3) The fatigue life of pressure-welded rebars in concrete is 1.8 to 4.0 times greater than that of pressure-welded bars in air. The longer fatigue life is a result of the bond stress between rebar and concrete.","subitem_description_type":"Abstract"}]},"item_2_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"学位記番号:工博乙3","subitem_description_type":"Other"}]},"item_2_dissertation_number_64":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":" 乙第3号"}]},"item_2_text_66":{"attribute_name":"更新日","attribute_value_mlt":[{"subitem_text_value":"2019-04-27"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山中, 憲行"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ヤマナカ, ノリユキ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamanaka, Noriyuki"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","displaytype":"detail","filename":"学位論文.pdf","filesize":[{"value":"56.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"url":"https://maebashi-it.repo.nii.ac.jp/record/33/files/学位論文.pdf"},"version_id":"7fce0d17-39d6-4f76-a6df-218f6f5b72a6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"曲げ加工部"},{"subitem_subject":"圧接加工部"},{"subitem_subject":"鉄筋"},{"subitem_subject":"アルカリ骨材反応"},{"subitem_subject":"疲労"},{"subitem_subject":"Bending parts"},{"subitem_subject":"Pressure-welding parts"},{"subitem_subject":"Rebar"},{"subitem_subject":"ASR"},{"subitem_subject":"Fatigue"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"コンクリート中の鉄筋加工部の脆性破断に関する実験的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"コンクリート中の鉄筋加工部の脆性破断に関する実験的研究"}]},"item_type_id":"2","owner":"2","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-10-01"},"publish_date":"2016-10-01","publish_status":"0","recid":"33","relation_version_is_last":true,"title":["コンクリート中の鉄筋加工部の脆性破断に関する実験的研究"],"weko_creator_id":"2","weko_shared_id":2},"updated":"2023-06-20T14:10:49.743718+00:00"}