2017 Fiscal Year Final Research Report
Evaluation Method of Restoring Force Characteristics for Precast Prestressed Concrete Frame Assembled by Post-Tensioning Unbonded Tendons
| Project/Area Number |
15K06302
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | 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 | Tokyo Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | プレストレスト・コンクリート骨組 / プレキャスト / アンボンド / 圧着接合 / 復元力特性 / 変形 / 梁曲げ破壊 / 接合部降伏破壊 |
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| Outline of Final Research Achievements |
The evaluation formula for predicting the ultimate flexural strength and deflection of a beam in a precast prestressed concrete frame, which is assembled by post-tensioning unbonded tendons within ungrouted sheaths, called an unbonded PCaPC frame, was proposed in a simplified and explicit way based on a macro-model which was newly created. The adequacy of the formula was verified through results of the tests using beam-column subassemblages under lateral load reversals.
It was confirmed by the tests that an exterior beam-column joint in unbonded PCaPC frames also fails in a joint hinging mechanism as well as in reinforced concrete frames.
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| Free Research Field |
建築構造
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