| Project/Area Number |
16560516
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Kinki University |
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Principal Investigator |
MURAKAMI Masahide Kinki University, School of Science & Engineering, Professor, 理工学部, 教授 (80190891)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2004: ¥700,000 (Direct Cost: ¥700,000)
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| Keywords | mud wall with uncovered posts and beams / failure behavior / construction way / evaluation of structural / specification of substrate / portion-wall specimen performance / physical model |
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| Research Abstract |
The construction way of substrate and the material used in the mud walls are different according to the provinces. The influence of different construction way of substrate on the structural performance of mud walls has not been clear yet, because there are a lot of kinds of construction way and two kinds of failure modes of mud walls. The shear behavior of mud walls can be predicted by our physical model based on their lateral load carrying mechanism. This mechanism mainly consists of the following three elements : 1) Compressive vertical pressure force between soil wall and beam or sill at all corners as compressive bracing action, 2) Compressive vertical pressure force between soil wall and embedded horizontal wooden batten 'Nuki' as dowel action, and 3) Shear resistance of soil wall.
The portion-wall specimens which are cut from the mud wall considering the resistance mechanism were examined to presume the envelope curve and the multiplier of bracing unit of it, and the validity of the portion-wall tests was discussed with three kinds of different mud walls.
The influence of different specification of mud walls on their structural performance was experimentally investigated by using this experimental technique as a fundamental method of settlement. The experimental parameters of specification were planned based on the questionnaire survey to the constructer in the whole country. The standard specification of these specimens is decided based on the Ministry of Land, Infrastructure and Transport notification. Three sets of experiments were conducted for three years by using three kinds of soils with different strength. The number of effective sample finally used for the evaluation was 114. The influence of compressive strength of soil and the specification of substrate on the structural performance of mud wall was clarified at each lateral load carrying mechanism.
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