[2007] SIMULATIVE RESEARCH OF HORIZONTAL TSUNAMI PRESSURE ON CONCRETE BRIDGE BY GIRDER POSITION PARAMETER
キーワード：concrete girder, horizontal tsunami pressure, simulation analysis, solitary wave
The relationship between horizontal tsunami pressure on the leading edge of girder and girder position is investigated by using CADMAS-SURF/3D. It is found that when tsunami acts on a lower girder, experimental pressure on the leading edge of girder has a high value (1942 Pa), which is almost same with the calculated pressure 1740 Pa. At the same time, the hydrostatic pressure is 1896 Pa, which is close to the calculated pressure 1740 Pa. Therefore, its hydrostatic pressure is similar with the tsunami pressure. On the contrary, when tsunami acts on a higher girder, the experimental pressure is much higher than its hydrostatic pressure. High velocity acting on the leading edge of girder leads its pressure to be increased. Therefore, the tsunami pressure is higher than the hydrostatic pressure.