AbstractThe objectives of this work are to close some of the knowledge gaps facing designers tasked with designing new offshore structures or upgrading older structures located in shallow waters and exposed to energetic multi-directional waves generated by passing hurricanes or cyclones. This will be accomplished by first investigating and characterizing the natural variability of the maximum wave heights and crest elevations found in multiple 2-hour long realizations of several short-crested shallow-water near-breaking seastates. Following this, the variability and repeatability of peak pressures and peak loads exerted on a 1/35 scale model of a gravity-based offshore structure are explored. The analysis focuses on establishing extreme value distributions for each realization, quantifying their variability, and exploring how the variability is diminished when results from multiple seastate realizations and repeated tests are combined. The importance of considering multiple realizations of a design wave condition when estimating peak values for use in design is investigated and highlighted.
Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/16bCsMd0OMc
Baker, Collins, Cornett, McLaren (2019): Physical modelling of extreme wave interaction with an offshore terminal, Proc. Coastal Structures 2019, Hannover
Cornett, Anglin, Elliott (2013): Wave-in-deck loads for an intricate pile-supported pier and variation with deck clearance, Proc. OMAE2013 (Paper 11409), Nantes
Huang, Spencer, Oberlies, Watts, Xiao (2017) Wave impact experiment of a GBS model in large waves, Proc. OMAE2017 (Paper 61473), Trondheim
Taylor, Garber, Collins, Baker, Cornett (2020): Extreme shallow water waves in dredged areas for directional seastates, Proc. 2020 Virtual ICCE.