Tsunami Force on a Building With Sea Wall Protection

Any Nurhasanah, . Nizam, Radianta Triatmadja

Abstract


The frequency of tsunami in Indonesia is increasing since the past few decades. The increasing of both the frequency of tsunami and the population in coastal area intensify the vulnerability of such area to tsunami disasters. Tsunamis do not only cause a large number of casualties but also damages to infrastructures along the shore. Wall protection is one possible solution to reduce tsunami force. The effectiveness however depends on the ratio between the tsunami height to the wall height and the distance between the wall and the buildings.A 24m long flume of 1.45m width and 1.5m height was utilized for the experiment. Various tsunami wave fronts were generated using a dam break mechanism. The model of buildings was tested both with and without wall protection installed at various distances in front of the buildings.The results indicated that the force reduction of building depends on the ratio between sea wall height and building high. A simplified formula for the calculation of tsunami force on protected building is proposed

Keywords


tsunami force; building; sea wall protection

Full Text:

PDF PDF

References


Chanson, H., (2004), The Hydraulics of Open Channel Flow: An Introduction, Elsevier Butterworth-Heinemann.

Chanson, H., (2005), Applications of The Saint-Venant Equations and Method of Characteristics To The Dam break Wave Problem,Hydraulic Model Reports Ch55/05, University Of Queensland.

Chanson, H., (2006), Tsunami Surges On Dry Coastal Plains: Application Of Dam break Wave Equations, Coastal Engineering Journal, Vol. 48, No. 4, pp 355-370, World Scientific Publishing Company and Japan Society of Civil Engineers.

Oshnack. M.E., Aguniga. F., Cox. D., Gupta. R., Lindt. J., (2009), Effectiveness of Small Onshore Seawall in Reducing Forces Induced by Tsunami Bore; Large Scale Experimental Study, Journal of Disaster Research, Vol.4 No.6.

Thomas, S. and Cox, D. (2012). Influence of Finite-Length Seawalls for Tsunami Loading on Coastal Structures, J. Waterway, Port, Coastal, Ocean Eng., 138(3), pp 203–214

Triatmadja.R., and Nurhasanah. A., (2012), Tsunami Force on Buildings with Openings, Journal of Earthquake and Tsunami, World Scientific Publishing Company,Vol. 6, No. 4.

Nurhasanah, A. Nizam. Triatmadja, R. 2014. Tsunami Force on a Building With Sea Wall Protection. Bandar Lampung : Universitas Bandar Lampung.


Refbacks

  • There are currently no refbacks.


International Conference on Engineering and Technology Development (ICETD)
Bandar Lampung University
ISSN: 2301-5690