| Budget Amount *help |
¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2008: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2007: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Research Abstract |
This study aims at constructing fatigue strength evaluation formula for connections between main girder webs and lateral girder flanges in I-section girder. For this purpose, fatigue tests have been performed on the connection models using the fatigue test system which can reproduce the pure 2 axial stress field, and fatigue tests have been also carried out where main stress direction is varying. Furthermore, FEM stress analyses and fatigue crack propagation analyses have been performed on the models with various size and shape.
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