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  1. 紀要論文
  2. 琉球大学工学部紀要
  3. 22号
  1. 部局別インデックス
  2. 工学部

老朽RC橋(炭焼橋)の桁疲労試験について

http://hdl.handle.net/20.500.12000/14688
http://hdl.handle.net/20.500.12000/14688
4ff7803b-3593-43b2-b464-1fd7cdabcaf7
名前 / ファイル ライセンス アクション
No22p057.pdf No22p057.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2010-01-12
タイトル
タイトル 老朽RC橋(炭焼橋)の桁疲労試験について
言語 ja
タイトル
タイトル On the Beam Fatigue Test of a Deteriorated Reinforced Concrete Bridge
言語 en
作成者 大城, 武

× 大城, 武

ja 大城, 武

Search repository
浜田, 純夫

× 浜田, 純夫

ja 浜田, 純夫

Search repository
成底, 弘敏

× 成底, 弘敏

ja 成底, 弘敏

Search repository
有住, 康則

× 有住, 康則

ja 有住, 康則

Search repository
Oshiro, Takeshi

× Oshiro, Takeshi

en Oshiro, Takeshi

Search repository
Hamada, Sumio

× Hamada, Sumio

en Hamada, Sumio

Search repository
Narisoko, Hirotoshi

× Narisoko, Hirotoshi

en Narisoko, Hirotoshi

Search repository
Arizumi, Yasunori

× Arizumi, Yasunori

en Arizumi, Yasunori

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 en
主題Scheme Other
主題 Fatigue Strength
主題
言語 en
主題Scheme Other
主題 Deteriorated RC Bridge
主題
言語 en
主題Scheme Other
主題 Crack Width
主題
言語 en
主題Scheme Other
主題 Deflection
主題
言語 en
主題Scheme Other
主題 Strain
内容記述
内容記述タイプ Other
内容記述 Most of RC bridges in Okinawa Prefecture have been constructed near the shore and deterioration of concrete due to rust of reinforcing bars becomes serious. Several investigations such as surface observations, truck loading tests and bending failure tests of main beams have been performed. These are mainly for static and fatigue behavior of a beam becomes important for the consideration of durability. Generally, fatigue strength of materials such as concrete and reinforcing bars is the major factor in determination of strength of a beam and fatigue behavior of the beam has not been seriously studied. However, it is considered as important since significant deterioration has been observed recently. Two beams tested here were cut of a deteriorated bridge and the appearance showed spalls of concrete on surface. Apparent losses in cross section of bars and bond stress were observed. This paper presents the results of fatigue test subjected to repeated loads where increasing rates of deflection, strain of bars and crack width and effectiveness of bond stress were carefully investigated. The immediate conclusions are as follows: (1) The significant reduction of bending rigidity and increase of crack width were not observed after repeated load, but residual deflection, strain and crack width were not negligible. (2) Sudden failure of test beams occured due to brittle failure of a reinforcing bar, which could be explained as the overstressing of a particular bar as result of loss in bond stress at neighboring bars.
内容記述
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/14688
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0389-102X
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AN0025048X
収録物名
言語 ja
収録物名 琉球大学工学部紀要
書誌情報
号 22, p. 57-74, 発行日 1981-09
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