2013 Fiscal Year Final Research Report
A Study on minimum requirement of concrete volume and effective method of arrangement of reinforcing bars in reiforced concrete beam-column knee joints
| Project/Area Number |
23560664
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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 Institute of Technology |
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Principal Investigator |
HOTTA HISATO 東京工業大学, 理工学研究科, 准教授 (20190217)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 鉄筋コンクリート構造 / Ｌ形接合部 / せん断強度 / 復元力特性 / 支圧強度 / 折り曲げ半径 |
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| Research Abstract |
As for reinfoced concrete beam- column knee joints, the minimum volume of panel concrete and effective arrangement of reinforcing bars which improves bond characteristic between bars and concrete in the panel and shear strength of the panels through empirical examination which is monotonic loading tests in the direction of closing direction of the joints. As a result, we found that large bending radius of main reinforcing bars which is 3-4 times as large as the ordinary standard hooks greatly improves bond characteristics and concequently significant improvement of shear strength results from that. those are also confirmed in monotonic loading test in the direction of openning or cyclic loading tests.
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