ํส | _ถ |
ๅ่ | Evaluation of Bridge Outflow due to Great Tsunami |
่ | |
Mชา | AสดiใBHฦๅwj |
Aผา1 | Kถซ๑iใBHฦๅwj |
Aผา2 | ฒXุBถiๅ๚{RT^gj |
Aผา3 | |
Aผา4 | |
Aผา5` | |
L[[h | รgAดภฬฌธARอWAภlAtsunamiAbridge outflowAdrag coefficientAratio ภ |
ช | 35 |
| 2 |
ๆชy[W | 841 |
๖y[W | 846 |
Nx | 2013 |
v| | Triggered tsunami from the Great East Japan Earthquake caused outflows of many bridges. ภ (ratio of girder resistance to tsunami impact) of 38 girders were evaluated. There is great difference between ภ of girders flowed and survived. From modifications using average drag coefficient, ภ have 20% increase. After revising, flowed bridges with ภ greater than 1.0 are located in smaller distance to coastal line inducing greater velocities and decrease of ภ. As representative, ภ of Koizumi Bridge was modified by velocity by numerical analysis and becomes sufficient to explain the outflow. |
PDFt@Cผ | 035-01-2141.pdf |
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