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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
https://doi.org/10.24561/00016669
https://doi.org/10.24561/00016669eedd5a86-edb0-46d4-acfe-0346dd8a4ac2
名前 / ファイル | ライセンス | アクション |
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KY-AA11808968-03-31.pdf (389.6 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-05-21 | |||||
タイトル | ||||||
タイトル | 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 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Corrosion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Prestoressing Steel | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Grout | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.24561/00016669 | |||||
ID登録タイプ | JaLC | |||||
タイトル(別言語) | ||||||
その他のタイトル | Durability of PC Members incorporating to Corrosion ofPC Bars | |||||
著者 |
睦好, 宏史
× 睦好, 宏史× 谷口, 博胤× 今野, 洋一× Ha, MINH× 二井谷, 教治 |
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著者 ローマ字 | ||||||
Hiroshi Mutsuyoshi | ||||||
著者 ローマ字 | ||||||
Hirotsugu Taniguchi | ||||||
著者 ローマ字 | ||||||
Youichi Konno | ||||||
著者 ローマ字 | ||||||
Ha MINH | ||||||
著者 ローマ字 | ||||||
Kyoji Niitani | ||||||
著者 所属 | ||||||
埼玉大学工学部建設工学科建設材料研究室 | ||||||
著者 所属 | ||||||
埼玉大学工学部建設工学科建設材料研究室 | ||||||
著者 所属 | ||||||
埼玉大学工学部建設工学科建設材料研究室 | ||||||
著者 所属 | ||||||
埼玉大学工学部建設工学科建設材料研究室 | ||||||
著者 所属 | ||||||
オリエンタル建設株式会社 | ||||||
著者 所属(別言語) | ||||||
Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Structural Material Laboratory, Department of Civil Engineering, Faculty of Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Oriental Construction Co., Ltd. | ||||||
書誌情報 |
埼玉大学地域共同研究センター紀要 en : Report of Cooperative Research Center, Saitama University 巻 3, p. 85-91, 発行日 2003 |
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年月次 | ||||||
2002 | ||||||
出版者名 | ||||||
出版者 | 埼玉大学地域共同研究センター | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13474758 | |||||
概要 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 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. | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2009-06-18 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
KY-AA11808968-03-31 |