2013 Fiscal Year Final Research Report
ESTABLISHMENT OF SEISMIC DESIGN METHOD FOR REINFORCED CONCRETE BEAM-COLUMN JOINTS BY CONSIDERING THREE-DIMENSIONAL STRESS TRANSFER
| Project/Area Number |
23760519
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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 | Hokkaido University |
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Principal Investigator |
NISHIMURA Koshiro 北海道大学, 工学(系)研究科(研究院), 准教授 (00343161)
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| Project Period (FY) |
2011 – 2013
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| 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 |
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| 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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