2016 Fiscal Year Final Research Report
Evaluation of Bridging Law and Structural Performance of HPFRCC Considering Fiber Orientation
| Project/Area Number |
26289188
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Building structures/Materials
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
八十島 章 筑波大学, システム情報系, 助教 (80437574)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 繊維補強セメント材料 / 架橋則 / 配向強度 / 配向制御 / 柱梁接合部 / バイブレータ / 構造性能 / 繊維種類 |
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| Outline of Final Research Achievements |
The bridging law of High-Performance Fiber-Reinforced Cementitious Composite (HPFRCC), in which short discrete fibers are mixed into cementitious matrix, can be determined by the balances of fiber orientation, snubbing effect, and fiber strength degradation due to orientation angle to crack surface. The bridging force increases by the rearrangement of fiber orientation produced by a vibration rod or device like comb. This increment causes the large effectiveness for improvement of structural performance of beams and beam-column joints. The structural performance of HPFRCC members can be evaluated by the models of bridging law that is characterized by the orientation intensity in the orientation distribution function.
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| Free Research Field |
建築構造材料
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