2021 Fiscal Year Annual Research Report
Development and application of a numerical model for fatigue performance assessment of UHPFRC-repaired RC bridge decks
| Project/Area Number |
20K14808
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| Research Institution | Hokkaido University |
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Principal Investigator |
DENG PENGRU 北海道大学, 工学研究院, 助教 (60825587)
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | UHPFRC / Fatigue / OSD / FEM / CT scan / Rehabilitation |
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| Outline of Annual Research Achievements |
1. Process experimental data of UHPFRC beams obtained from 4-point static flexural tests under different load speeds and ages as well as fatigue flexural tests under different stress levels.
2. Conduct FEA on the tested UHPFRC beams and fit the experimental data to obtain the material degradation law.
3. Investigate the tested specimens using NDT techniques, such as microscope and CT scan to uncover the degradation and failure mechanisms.
4. Analyze the fatigue performance of steel deck plate strengthened with UHPFRC overlay under dry and wet conditions using the degradation law obtained from Achievement 2.
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