| Issue |
MATEC Web of Conferences
Volume 47, 2016
The 3rd International Conference on Civil and Environmental Engineering for Sustainability (IConCEES 2015)
|
|
|---|---|---|
| Article Number | 02019 | |
| Number of page(s) | 7 | |
| Section | Structure, Solid Mechanics and Numerical Modelling | |
| DOI | https://doi.org/10.1051/matecconf/20164702019 | |
| Published online | 01 April 2016 | |
Multi-Scale Bridge Wash Out Simulation During Tsunami by Using a Particle Method
Department of Civil Engineering, Graduate School of Engineering, Kyushu University, Motoka 744, Nishi-ku, Fukuoka 819-0395, Japan
a Corresponding author : y_miyagawa@doc.kyushu-u.ac.jp
In 2011, the huge tsunami caused by the great east Japan earthquake devastated many infrastructures in pacific coast of north eastern Japan. Particularly, collapse of bridges caused a traffic disorder and these collapse behaviors led to delay of recovery after the disaster. In this study, the bridge wash away accident is selected as a target issue, and it is represented by a numerical simulation. For this purpose, Smoothed Particle Hydrodynamics (SPH) Method, which is one of the pure mesh free methods, is utilized for the rigid body motion simulation. In this study, rigid body motion is introduced for the fluid-rigid interaction behavior during bridge wash away simulation. In the numerical analysis, the upper bridge structure is washed away by receiving an impact fluid force. The wash away simulation of two types of the bridge girder showed good agreement with the real accident on the great east Japan earthquake tsunami.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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