{"created":"2023-05-15T15:27:44.801064+00:00","id":16675,"links":{},"metadata":{"_buckets":{"deposit":"5738e977-184c-4bb6-9b5c-0374de5efcca"},"_deposit":{"created_by":3,"id":"16675","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"16675"},"status":"published"},"_oai":{"id":"oai:sucra.repo.nii.ac.jp:00016675","sets":["95:239:635"]},"author_link":["27216","27213","27214","27215","16645"],"item_120_alternative_title_1":{"attribute_name":"タイトル（別言語）","attribute_value_mlt":[{"subitem_alternative_title":"Durability of PC Members incorporating to Corrosion ofPC Bars"}]},"item_120_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"91","bibliographicPageStart":"85","bibliographicVolumeNumber":"3","bibliographic_titles":[{"bibliographic_title":"埼玉大学地域共同研究センター紀要"},{"bibliographic_title":"Report of Cooperative Research Center, Saitama University","bibliographic_titleLang":"en"}]}]},"item_120_date_31":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2009-06-18","subitem_date_issued_type":"Created"}]},"item_120_description_19":{"attribute_name":"概要","attribute_value_mlt":[{"subitem_description":"Problems with corrosion ofprestressing steel in post-tensioned structures due to inadequate grouting in the past have become more apparent in recent years. To investigate influence of inadequate grouting on corrosion ofprestressing steel, an accelerated corrosion tests by external current was carried out in this study. Further, loading tests were also conducted to investigate the behavior of post-tensioned concrete beams deteriorated by corrosion of prestressing steel. In the test, the grouts were injected into the ducts with different grout level of 33%, 66% and 100% respectively. The results of accelerated corrosion tests show that the cracks occurred faster with the increasing of grout level. It is confirmed that the grout plays a crucial role in the corrosion protection of the prestressing steel. The results of loading test show that, as the degree of corrosion crack became severe, failure mode of the beams shifted from flexural failure to bond splitting and ultimate loading capacity decreased from 10% to 30%. The reduction of the loading capacity might be due to reducing of steel-concrete bond and concrete rigidity by severe corrosion cracks. For the beam with applied current time of 30 days, the failure load decreased 82%. The weight loss of prestressing steel was 26% for this beam. It is concluded that adequate grouting is necessary to protect prestressing steel deteriorated by corrosion. Furthermore, since the corrosion cracks occurred faster if the rate of filling grout is high, the measuring of sheath's corrosion is needed.","subitem_description_type":"Other"}]},"item_120_description_29":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"text","subitem_description_type":"Other"}]},"item_120_description_30":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_120_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24561/00016669","subitem_identifier_reg_type":"JaLC"}]},"item_120_publisher_11":{"attribute_name":"出版者名","attribute_value_mlt":[{"subitem_publisher":"埼玉大学地域共同研究センター"}]},"item_120_source_id_14":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13474758","subitem_source_identifier_type":"ISSN"}]},"item_120_text_3":{"attribute_name":"著者 ローマ字","attribute_value_mlt":[{"subitem_text_value":"Hiroshi Mutsuyoshi"},{"subitem_text_value":"Hirotsugu Taniguchi"},{"subitem_text_value":"Youichi Konno"},{"subitem_text_value":"Ha MINH"},{"subitem_text_value":"Kyoji Niitani"}]},"item_120_text_32":{"attribute_name":"アイテムID","attribute_value_mlt":[{"subitem_text_value":"KY-AA11808968-03-31"}]},"item_120_text_4":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"埼玉大学工学部建設工学科建設材料研究室"},{"subitem_text_value":"埼玉大学工学部建設工学科建設材料研究室"},{"subitem_text_value":"埼玉大学工学部建設工学科建設材料研究室"},{"subitem_text_value":"埼玉大学工学部建設工学科建設材料研究室"},{"subitem_text_value":"オリエンタル建設株式会社"}]},"item_120_text_5":{"attribute_name":"著者 所属(別言語)","attribute_value_mlt":[{"subitem_text_value":"Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University"},{"subitem_text_value":"Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University"},{"subitem_text_value":"Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University"},{"subitem_text_value":"Oriental Construction Co., Ltd."}]},"item_120_text_9":{"attribute_name":"年月次","attribute_value_mlt":[{"subitem_text_value":"2002"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"睦好, 宏史"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"谷口, 博胤"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"今野, 洋一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ha, MINH"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"二井谷, 教治"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-01-24"}],"displaytype":"detail","filename":"KY-AA11808968-03-31.pdf","filesize":[{"value":"389.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KY-AA11808968-03-31.pdf","url":"https://sucra.repo.nii.ac.jp/record/16675/files/KY-AA11808968-03-31.pdf"},"version_id":"c0ac135e-05e9-4a66-a3eb-7a71493aeb15"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Corrosion","subitem_subject_scheme":"Other"},{"subitem_subject":"Prestoressing Steel","subitem_subject_scheme":"Other"},{"subitem_subject":"Grout","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":"PC鋼材の腐食によるプレストレストコンクリート橋梁の耐久性","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"PC鋼材の腐食によるプレストレストコンクリート橋梁の耐久性"}]},"item_type_id":"120","owner":"3","path":["635"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-05-21"},"publish_date":"2009-05-21","publish_status":"0","recid":"16675","relation_version_is_last":true,"title":["PC鋼材の腐食によるプレストレストコンクリート橋梁の耐久性"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-05-15T18:14:39.489960+00:00"}