| Behavior of bridge superstructure under tsunami loading is necessary to be understood for the purpose of mitigation of tsunami effect on coastal bridges. In this paper, influence of the cross-sectional profile of the bridge superstructure on behavior of bridge superstructure under tsunami loading was preliminarily studied based on flume experiments on scale bridge models. Four 1 to 20 scale bridge models were experimented in which the cross sectional profile of the superstructure were different with each other. Tsunami wave pressure on the superstructure and reaction forces in bridge supports were discussed. Experimental results show that verticalreaction forces in supports were strongly depended on the cross sectional profile of the bridge superstructure. Preliminary conclusions were provided on advantageous profiles of the cross section of the bridge superstructure for mitigation of tsunami effect on bridge. |
