Development of analytical model for damage evaluation of prestressed reiforced concrete beam-column joints
| Project/Area Number |
24760445
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Building structures/materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KUSUHARA Fumio 東京大学, 工学(系)研究科(研究院), 助教 (50361522)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | プレストレストコンクリート / プレストレスト鉄筋コンクリート / 柱梁接合部 / 終局強度 / 破壊モード / 柱梁強度比 / 接合部破壊 / プレストレスト率 / 付着 / 柱梁曲げ強度比 / プレストレス率 |
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| Research Abstract |
This resarch indicates that joint failure occuers when the column-to-beam strength ratio is equal or near one even in prestressed concrete (PC) structures and prestressed reinforced concrete (PRC) structures. Increasing column-to-beam strength ratio makes the moment capacity of the joint larger. The effects of Locations of PC bars and bond between PC bars and concrete on ultimate strength and failure mode are not large. The theory and calcuration method for moment capacity of reinforced concrete beam-column joints are applicable for PC and PRC beam-column joints. In the application of the method, the stresses in the PC bars can be treated as axial force in the sections. The calcurated restults agreed with the test results and the method was able to describe the effect of design parameters such as the prestressed ratio.
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Report
(3 results)
Research Products
(8 results)
