Evaluation of long-term behavior of PC member based on fracture in local portion
| Project/Area Number |
25709037
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Railway Technical Research Institute |
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Principal Investigator |
WATANABE KEN 公益財団法人鉄道総合技術研究所, 構造物技術研究部, 主任研究員 (40450746)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000)
Fiscal Year 2015: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2013: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Keywords | プレストレストコンクリート / 収縮クリープ / 鉄筋 / 残留応力 / 画像相関法 / 高速化 / ひび割れ / ストラット / 収縮 / 鉄筋コンクリート / 格子法 / 直角方向補強鉄筋 / クリープ / ﾌﾟﾚｽﾄﾚｽ / トラス / アーチ / コンクリート / 時間軸 / 自己応力 |
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| Outline of Final Research Achievements |
The objective of this study is to evaluate the contribution of shrinkage and creep of concrete on life of concrete subjected to sustained loading by using the digital image-correlation method. The high-speed image correlation algorism for concrete fracture was developed. The stress caused by shrinkage of mortar was calculated based on thick cylinder theory and strain measured by using the digital image-correlation method. Then, the effect of the stress on the cracking load of mortar was evaluated. In addition, the digital image-correlation method evaluated the area where the minimum principle strain was occurred drastically in the loaded PC beam with diagonal cracks.
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Report
(4 results)
Research Products
(11 results)
