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28 August 2019 Physical Modeling of Horizontal and Vertical Tsunami Forces on the Elevated Overland Structure
Hyoungsu Park, Daniel T. Cox, Sungwon Shin
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Park, H.; Cox, D.T., and Shin, S., 2019. Physical modeling of horizontal and vertical tsunami forces on the elevated overland structure. In: Lee, J.L.; Yoon, J.-S.; Cho, W.C.; Muin, M., and Lee, J. (eds.), The 3rd International Water Safety Symposium. Journal of Coastal Research, Special Issue No. 91, pp. 51-55. Coconut Creek (Florida), ISSN 0749-0208.

In this study, two-dimensional hydraulic model tests were conducted to investigate the characteristics of the force of tsunami waves on the simplified box-type elevated structure. The vertical elevation of the structure was changed to investigate the relation between the wave force and the air gap. The tsunami waves were generated by using the error function with the full-stroke of the wave paddle to maximize inundation. The horizontal and vertical wave forces and pressures on the structure by the tsunami waves were measured, and the relation between the maximum wave force, air gap and the incident wave condition was derived. Using the measured maximum horizontal wave force from the different wave conditions, the empirical formula of the non-dimensionalized horizontal wave force as a function of the surf similarity parameter was obtained. It was found that the horizontal wave force is inversely proportional to the surf similarity parameter in the case of the unelevated structure. The experimental results also showed that the ratio of the horizontal force to the vertical force is larger in the case of broken and breaking wave conditions in the case of the elevated structures.

©Coastal Education and Research Foundation, Inc. 2019
Hyoungsu Park, Daniel T. Cox, and Sungwon Shin "Physical Modeling of Horizontal and Vertical Tsunami Forces on the Elevated Overland Structure," Journal of Coastal Research 91(sp1), 51-55, (28 August 2019).
Received: 9 October 2018; Accepted: 14 December 2018; Published: 28 August 2019

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