ESTABLISHMENT OF SEISMIC DESIGN METHOD FOR REINFORCED CONCRETE BEAM-COLUMN JOINTS BY CONSIDERING THREE-DIMENSIONAL STRESS TRANSFER
Project/Area Number |
23760519
|
Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Building structures/materials
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Research Institution | Hokkaido University |
Principal Investigator |
NISHIMURA Koshiro 北海道大学, 工学(系)研究科(研究院), 准教授 (00343161)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | 鉄筋コンクリート / 隅柱梁接合部 / 扁平梁 / 接合部補強筋 / ねじり / 2方向加力 / 外柱梁接合部 / FEM解析 / 定着補強筋 |
Research Abstract |
In order to develop a structural adaptability in seismic design of a reinforced concrete building, experimental and numerical studies were carried out. In these studies, three-dimensional stress transfer in a beam-column joint was focused, and static cyclic loading tests of corner beam-column joints and numerical analysis of exterior joints with FEM were conducted. As results of the studies, important knowledge was found as follows: three directional arrangement of reinforcing bars and adopting of thin reinforcing bars were effective for the three-dimensional stress transfer such as torsional stress; damages at the joint could cause degradation of torsional stiffness around the column axis; etc. Based on the knowledge, recommendations in seismic design of reinforced concrete beam-column joints were pointed out.
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Report
(4 results)
Research Products
(9 results)