Wave loading model tests on a gravity base structure

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TypeTechnical Report
AbstractA series of model tests was carried out on a 1:40 scale model og a gravity base structure (GBS). The model was instrumented to measure global horizontal loads and overturning moments about its base, and local pressures and water elevations at a number of locations on the model structure. The model was subjected to a series of regular and irregular waves. Groups of high waves were also selected from the irregular spectra and run in isolation. The objective was to compare the structure's response to this group to that from the same group found in the full legth spectrum. This is referred to as the snapshot technique. Generation of model waves is complicated by wave reflections from the test facility boundaries. The snapshot technique was found to be useful in determining the amount of reflection builup during an irregular run. In regular waves a technique was developed to monomize these effects. Providing quantitative data from such test programs is particularly complicated by the non-linear nature of the wave loading mechanics such as steep and breaking waves, slamming and wave impact. The paper focuses primarily on techniques of data acquisition and analysis.
Publication date
PublisherKluwer Academic Publishers
PlaceDordrecht ; Boston
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedYes
NRC number6337
NPARC number8895988
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Record identifier2b7d9ad4-a92b-4174-b5e6-e3c2193a6929
Record created2009-04-22
Record modified2016-10-03
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