Offshore Disasters:
Wave Forces On Offshore And Coastal Structures
Due To Tsunamis
Author(s)
A. R. Foroughi, W. Sleeman & R. Scott
Abstract
Every year natural disasters result in considerable damage to offshore structures,
coastal zones and other vulnerable areas.
In Tsunami disasters direct damage occurs, such as the destruction of
structures and loss of life due to wave forces and the run-up Tsunami.
Tsunamis are characterised as shallow water waves of long period wavelength
with extreme height and force. They are often observed with wavelengths in
excess of 150 Km and with periods of over 1.5 hours. Due to their large
wavelength and wave force, Tsunamis propagate high wave forces and loads.
This paper has three main sections. Characteristics of waves, which includes
waves with a crest at the top and a trough at the bottom, wave forces and damage
to offshore structures, the design of wave methodology for safer structures;
Physical characteristics of Tsunamis, considering the mitigation of risk and
hazard, wave force estimation, design of offshore and coastal structures to allow
for Tsunamis; Managing natural disasters.
This paper provides a close study and literature review on the engineering
approach to the design of wave forces and reports on a proposed structural
design method for Tsunami refuge building based upon a literature survey of
previous theoretical and experimental research on Tsunami forces and loads to
offshore and coastal structures.
The paper also proposes a verification approach requiring a generalised model
of the structure of interest to minimise the risk and damage to structures.
Keywords
Related Book
Other papers in this volume
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