| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
|---|
| Outline of Final Research Achievements |
Timber joints are important for structural performance of wooden house. Structural performance of wooden house is change by decay. Accordingly, it is important to obtain relations between decay and performance of timber joints. Decay often is not uniform in cross section of wood. Relations between decay distribution of wood and shear behavior of mechanical joints were investigated. When neighborhood of nail head was decayed, the strength of joints was lower than the joints which had decay near nail tip. The yield strength of nailed joints with both of sound and decay parts was calculated based on European yield theory. The calculated values were close to the experimental results. Non-linear analysis was conducted on mechanical joints with slotted-in steel plate. When wood near steel plate was decayed, the joints were showed the small initial stiffness and yield strength.
|
