2016 Fiscal Year Final Research Report
Proposal of Internal Loading Method to Evaluate Remaining Strength of Buried RC Pipe
| Project/Area Number |
26850152
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rural environmental engineering/Planning
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| Research Institution | Tottori University |
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Principal Investigator |
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| Research Collaborator |
OGATA Hidehiko
ISHII Masayuki
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 内面載荷法 / 断面内剛性 / 管荷重ー変形量の関係 / PVC管 / RC管 / 耐力評価手法 / 管体 |
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| Outline of Final Research Achievements |
We made a pipe considering the product standards of centrifugal reinforced concrete pipe and evaluated the difference in stiffness on cross-sectional. Since the manufacturing method of the RC pipe slightly varies depending on the manufacturer, the stiffness of the RC pipe at each company and the rigidity deterioration characteristics at the time of cracks were evaluated. As a result, it was found that the stiffness of the RC pipe assuming the former JIS is about 20% smaller than that of the RC pipe assuming the present JIS. This factor was thought to be mainly due to the difference in elastic modulus. In addition, It was revealed that the stiffness and deterioration characteristics of stiffness differed depending on manufacturers. From the above, when performing function diagnosis etc. of the RC pipe under service, it was necessary to consider the manufacturing year and the manufacturing company.
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| Free Research Field |
農業土木
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