| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2010: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2009: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
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| Research Abstract |
At present there is no method of evaluation of wooden material and joint attacked by termite or rot fungi and so on. Therefore, we proposed acceleration method of bio-deterioration for real size members and joint of wooden house, and evaluated the survived strength them. As a result, we were able to establish how to make a real size wooden members and joint, and were able to accumulate data of bio-deterioration wooden members and joint. In addition, the results obtained from the bio-deterioration real size material tests were shown a good agreement between ultrasonic velocity or penetration depth of steel pin and the survived strength. The results obtained from the bio-deterioration real size joint tests were shown that the large decrease in survived strength when there is localized degradation of the joint part.
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