2012 Fiscal Year Final Research Report
A Study on Seismic Performance reassessment of wooden structure that focuses on seismic performance of the wooden stairs
| Project/Area Number |
23760521
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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 | Architectural Research Association
一般財団法人 建築研究協会 |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Keywords | 木造住宅 / 耐震性能 / 非構造部材 / 階段 |
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| Research Abstract |
This study aimed to obtain quantitative understanding of the seismic performance provided by the staircase which a wooden building with two or more stories always has, through static lateral loading tests and numerical analysis based on structural dynamics models. A total of four buildings by two construction methods; post-and-beam and light-frame, and with two types of staircases; U-shape winding staircase and straight flight staircase, were used as specimens. The test results revealed that the seismic performance of the staircases resulted from the fact that the sideboards incidentally serve as non-buckling braces combined with the treads. This demonstrates how the fasteners joining the timber frame and sideboards are of crucial importance.
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