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Simulation of long-term time-dependent mechanics of an existing PC bridge by full-3D multi-scale integrated FE analysis
http://hdl.handle.net/10173/1854
http://hdl.handle.net/10173/1854852a17b1-eb59-4393-bded-05904d2b0412
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SMS10-157.pdf (522.9 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-02-06 | |||||
| タイトル | ||||||
| タイトル | Simulation of long-term time-dependent mechanics of an existing PC bridge by full-3D multi-scale integrated FE analysis | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | integrated computing system | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | creep | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | existing structure management | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| 著者 |
Sugita, Kei
× Sugita, Kei× Chijiwa, Nobuhiro× Maekawa, Koichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A simulation of the long-term deflection and internal stress-strain of a pre-stressed cantilever bridge is made. This particular bridge is selected as the deflection of the bridge after 25 years is much larger than the expected value obtained from the current design creep equation. It is expected that the underestimated deflection is attributed to the limitation of the equation to capture the real, complex behavior of the bridge. To verify this expectation, a finite element program capable of modeling multi-scale, multi-chemo physics, and nonlinear mechanics is used to analyze the long-term behavior of the bridge in details. A systematic investigation is also made to study the influences of various environmental conditions. The analysis shows that the moisture and temperature of the concrete have a major role affecting the overall deflection of the bridge, which is primarily caused by excessive creep and non-uniform shrinkage and expansion. Based on this finding, a novel method to control the deflection of the bridge is introduced; that is, by changing the environmental states of the concrete in the bridge. | |||||
| 書誌情報 |
Society for Social Management Systems Internet Journal 巻 6, 号 1, 発行日 2010-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2432-552X | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | Society for Social Management Systems | |||||
