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Tsunami wave loading on buildings: a simplified approach

Authors:

K.M.K. Bandara,

Department of Civil Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa., LK
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W.P.S. Dias

Department of Civil Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa., LK
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Abstract

The simplest way to express the magnitude of a tsunami load is based on its wave height or depth of inundation at a given location. This paper aims to discuss such a simple but realistic tsunami loading scheme and a dynamic analysis method to evaluate a given structure. A case study of a reinforced concrete framed building is used to demonstrate how this can be done. The total tsunami load is expressed as a combination of different components that have particular distributions with respect to time and space. These are applied on the 2D reinforced concrete frame from the case study and both static and dynamic time history analysis were performed to quantify tsunami damage in terms of hinge formation. It is shown that the impulsive force is the critical component of the tsunami load. The suggested total tsunami load is 2.5 ρgh2 per unit width, where h is the depth of inundation.

DOI: http://dx.doi.org/10.4038/jnsfsr.v40i3.4695

J.Natn.Sci.Foundation Sri Lanka 2012 40(3):211-219

How to Cite: Bandara, K.M.K. and Dias, W.P.S., 2012. Tsunami wave loading on buildings: a simplified approach. Journal of the National Science Foundation of Sri Lanka, 40(3), pp.211–219. DOI: http://doi.org/10.4038/jnsfsr.v40i3.4695
Published on 26 Sep 2012.
Peer Reviewed

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