Allowable crack depth of concrete members suffered earthquake load
| Project/Area Number |
21560590
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Kinki University (2011)
Osaka University (2009-2010) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OHNO Yoshiteru 大阪大学, 先端科学イノベーションセンター, 特任教授 (30029194)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 鉄筋コンクリート / 残留ひび割れ幅 / 鉄筋腐食 / 塩化物イオン濃度 / 柱、梁部材 / ひび割れ間隔 / 鉄筋付着 / 解析プログラム / ひび割れ幅 |
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| Research Abstract |
The method to estimate residual crack width on concrete members suffered earthquake load was studied by experimental and analytical investigations and the calculation formula to calculate residual crack width was derived. By experimental study the relation between crack width on the surface of concrete member and degree of corrosion on steel bars, Cl-ion concentration are studied. 0.2mm more over crack width caused increasing Cl-ion concentration in the cracking surface of concrete and degree of corrosion of steel bars equipped in concrete.
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Report
(4 results)
Research Products
(19 results)
