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How to Cite

Honda, T., Oda, Y., Ito, K., Watanabe, M., & Takabatake, T. (2014). AN EXPERIMENTAL STUDY ON THE TSUNAMI PRESSURE ACTING ON PILOTI-TYPE BUILDINGS. Coastal Engineering Proceedings, 1(34), structures.41.


It is known that piloti-type structures, which have an open space on the ground floor, have advantages for tsunami hitting because tsunami can pass through the ground floor. There is a basic guideline for the design of piloti-type structures for tsunami forces but detailed information such as tsunami forces acting on the elevator hall or the ceiling is not speculated. Then, the hydraulic physical model tests were performed by using a newly-developed tsunami wave generator. As a result of the physical model tests, the tsunami force acting on an upper structure becomes significantly smaller compared with a normal (not piloti-type) structures. It should be noticed that tsunami reaches the upper structure and gives the significant tsunami force on the upper structure because the ground structure exists, even if the peak water level is somewhat lower than the ceiling level of the ground floor. The uplift force observed on the ceiling in front of the ground structure is much larger than the usual design force on the ceiling of the buildings.


Anawat, S., E. Mas., S. Koshimura., K. Imai., H. Gokon., A. Muhari. and F. Imamura., 2012. Damage characteristic and field survey of the 2001 great east Japan tsunami in Miyagi prefecture. Coastal Engineering Journal, JSCE, Vol.54, No.1, pp.125005-1-1250001-30.

Kakinuma, T., G. Tsujimoto., T. Yasuda. and T. Takashi., 2012. Trace Survey of the 2011 Tohoku Tsunami in the North of Miyagi Prefecture and Numerical Simulation of Bidirectional Tsunamis in Utatsusaki Peninsula, Coastal Engineering Journal, JSCE, Vol.54, No.1, pp.125007-1- 1250007-28.

Mori, N., and T. Takahashi., 2012. Nationwide post event survey and analysis of the 2011 Tohoku Earthquake Tsunami, Coastal Engineering Journal, JSCE, Vol.54, No.1, pp.125001-1-1250001- 27.

National Institute for Land and Infrastructure Management. 2012. Practical Guide on Requirement for Structural Design of Tsunami Evacuation Buildings, Technical Note, No.673. (in Japanese)

Saatcioglu, M., A. Ghobarah., and I. Nistor., 2006. Performance of structures in Indonesia during the December 2004 Great Sumatra Earthquake and Indian Ocean Tsunami, Earthquake Spectra, Earthquake Engineering Research Institute, ASCE, Vol.22, No.S3, pp.295-319.

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