JDR Vol.4 No.6 pp. 45-53
doi: 10.20965/jdr.2009.p0045


Experimental Verification of FEMA P646 Tsunami Loading

Panitan Lukkunaprasit*, Nuttawut Thanasisathit*, and Harry Yeh**

*Department of Civil Engineering, Chulalongkorn University
Phayathai Road, 10330, Bangkok, Thailand
**School of Civil and Construction Engineering, Oregon State University, 220 Owen Hall, Corvallis, Oregon 97331-3212, USA

June 24, 2009
September 4, 2009
Online released:
December 1, 2009
December 1, 2009
tsunami, building, experiment, surge force, guidelines, drag force

The 2004 catastrophe of the Indian Ocean tsunami prompted scientists and engineers to develop better guidelines for economically designed essential buildings that are capable of withstanding tsunami forces. A recent design guidelines document – FEMA P646 [1] published by the US Federal Emergency Management Agency (FEMA) – proposes a practical method to estimate the tsunami design forces at a given locality with a known maximum tsunami runup height. This paper focuses on verifying the method stipulated in FEMA P646 through laboratory experiments, assuming the beach condition similar to Kamala beach in Phuket, Thailand, which suffered great losses by the 2004 Indian Ocean tsunami. Our experimental results confirm that the predicted forces provide a reasonable upper bound for the measured forces.

  1. [1] FEMA P646, “Guidelines for Design of Structures for Vertical Evacuation from Tsunamis,” Federal Emergency Management Agency, Washington, D.C., 2008.
  2. [2] USGS, ,
  3. [3] P. Lukkunaprasit and A. Ruangrassamee, “Building Damage in Thailand in the 2004 Indian Ocean Tsunami and Clues for Tsunamiresistant Design,” The IES J. Part A: Civil & Structural Engineering, Vol.1, No.1, pp. 17-30, 2008.
  4. [4] H. Yeh, “Design Tsunami Forces for Onshore Structures,” J. of Disaster Research, Vol.2, No.6, pp. 531-536, 2007.
  5. [5] Y. Fukui, M. Nakamura, H. Shiraishi, and Y. Sasaki, “Hydraulic Study on Tsunami,” Coastal Engineering in Japan, Vol.6, pp. 67-82, 1963.
  6. [6] S. Mizutani and F. Imamura, “Dynamic Wave Force of Tsunamis Acting on a Structure,” Proc. Int. Tsunami Symp., Washington, Vol.7, No.28, pp. 941-948, 2001.
  7. [7] R. Cross, “Tsunami Surge Forces,” J. of the Waterways and Harbors Division, In Proc. of the American Society of Civil engineers, Vol.93-WW4, pp. 201-231, 1967.
  8. [8] J. D. Ramsden and F. Raichlen, “Forces on Vertical Wall Caused by Incident Bores,” J. of Waterway, Port, Coastal, and Ocean Engineering, Vol.116, No.5, pp. 592-613, 1990.
  9. [9] J. D. Ramsden, “Tsunamis Forces on a Vertical Wall Caused by LongWaves, Bores, and Surge on a Dry Bed,” J. of Waterway, Port, Coastal, and Ocean Engineering, Vol.122, No.3, pp. 134-141, 1996.
  10. [10] M. A. Hamzah, H.Mase, and T. Takayama, “Simulation and Experiment of Hydrodynamic Pressure on a Tsunami Barrier,” In Proc. of the 27th Int. Conf. on Coastal Engineering, Sydney, Australia, pp. 1501-1507, 2000.
  11. [11] R. Asakura, K. Iwase, T. Ikeya, M. Takao, T. Kaneto, N. Fujii, and M. Ohmori, “The TsunamiWave Force Acting on Land Structures,” In Proc. of the 28th Int. Conf. on Coastal Engineering, Cardiff, Wales, pp. 1191-1202, 2002.
  12. [12] H. Arnason, C. Petroff, and H. Yeh, “Tsunami Bore Impingement onto a Vertical Column,” J. Disaster Res., Vol.4, No.6, pp. 391-403, 2009.
  13. [13] P. Lukkunaprasit, A. Ruangrassamee, and N. Thanasisathit, “Tsunami Loading in Buildings with Openings,” In Proc. of the 14th World Conf. on Earthquake Engineering, Beijing, China, ID 15-0017, 2008.
  14. [14] FEMA 55, “Coastal Construction Manual,” Edition 3, Federal Emergency Management Agency. Washington, D.C., 2000.
  15. [15] Japan Cabinet Office, Government of Japan, “Guidelines for Tsunami Evacuation Buildings,” ,
    2005 (in Japanese).
  16. [16] F. Camfield, “Tsunami Engineering,” Coastal Engineering Research Center, U.S. Army Corps of Engineers, Special Report (SR-6), 222, pp, 1980.
  17. [17] Dames & Moore, “Design and Construction Standards for Residential Construction in Tsunami-Prone Areas in Hawaii,” prepared for the Federal Emergency Management Agency by Dames & Moore, Washington, D.C., 1980.
  18. [18] City and County of Honolulu Building Code (CCH), “Department of Planning and Permitting of Honolulu Hawaii,” Chapter 16 Article 11. Honolulu, Hawaii, 2000.
  19. [19] M. C. Shen, and R. E. Meyer, “Climb of a Bore on a Beach. Part3. Run-up,” J. Fluid Mech., Vol.16, pp. 113-125, 1963.
  20. [20] H. Yeh, “Maximum Fluid Forces in the Tsunami Runup Zone,” J. of Waterway, Port, Coastal, and Ocean Engineering, Vol.132, No.6, pp. 496-500, 2006.
  21. [21] J. J. Stoker, “Water Waves,” Interscience Publishers, Inc., New York, 567pp, 1957.
  22. [22] G. H. Keulegan, “Wave Motion,” (In: Engineering Hydraulics, H. Rouse Ed.) John Wiley & Son, Inc. New York, pp. 711-768, 1950.
  23. [23] G. B. Whitham, “The Effects of Hydraulic Resistance in the Dambreak Problem,” Proc. Roy. Soc. A. Vol.227, pp.399-407, 1955.
  24. [24] J. D. Ramsden, “Tsunamis: Forces on a Vertical Wall Caused by Long Waves, Bores, and Surges on a Dry Bed,” Report No. KHR-54, W.M. Keck Laboratory, California Institute of Technology, Pasadena, Calif., 251pp, 1993.
  25. [25] H. Yeh, P. Liu, and C. Synolakis (Eds.), “Long-Wave Runup Models,” World Scientific Publishing Co., Singapore, 403pp, 1996.
  26. [26] G. B. Whitham, “On the Propagation of Shock Waves through Regions of Non-uniform Area or Flow,” J. FluidMech., Vol.4, pp. 337-360, 1958.
  27. [27] H. B. Keller, D. A. Levine, and G. B. Whitham, “Motion of a Bore over a Sloping Beach,” J. Fluid Mech., Vol.7, pp. 302-316, 1960.
  28. [28] D. V. Ho and R. E. Meyer, “Climb of a Bore on a Beach. Part 1: Uniform Beach Slope,” J. Fluid Mech., Vol.14, pp. 305-318, 1962.
  29. [29] H. Yeh, A. Ghazali, and I. Marton, “Experimental Study of Bore Runup,” J. Fluid Mech., Vol.206, pp. 563-578, 1989.
  30. [30] D. H. Peregrine and S. M. Williams, “Swash Overtopping a Truncated Plane Beach,” J. Fluid Mech., Vol.440, pp. 391-399, 2001.

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Last updated on Feb. 23, 2017