EXTREME WAVE PRESSURES AND LOADS ON A PILE-SUPPORTED WHARF DECK - INFLUENCES OF AIR GAP AND WAVE DIRECTION
AbstractMany deck-on-pile structures are located in shallow water depths at elevations low enough to be inundated by large waves during intense storms or tsunami. Many researchers have studied wave-in-deck loads over the past decade using a variety of theoretical, experimental, and numerical methods. Wave-in-deck loads on various pile supported coastal structures such as jetties, piers, wharves and bridges have been studied by Tirindelli et al. (2003), Cuomo et al. (2007, 2009), Murali et al. (2009), and Meng et al. (2010). All these authors analyzed data from scale model tests to investigate the pressures and loads on beam and deck elements subject to wave impact under various conditions. Wavein- deck loads on fixed offshore structures have been studied by Murray et al. (1997), Finnigan et al. (1997), Bea et al. (1999, 2001), Baarholm et al. (2004, 2009), and Raaij et al. (2007). These authors have studied both simplified and realistic deck structures using a mixture of theoretical analysis and model tests. Other researchers, including Kendon et al. (2010), Schellin et al. (2009), Lande et al. (2011) and Wemmenhove et al. (2011) have demonstrated that various CFD methods can be used to simulate the interaction of extreme waves with both simple and more realistic deck structures, and predict wave-in-deck pressures and loads.
Baarholm, Faltinsen (2004): Wave impacts underneath horizontal decks. J. Mar Sci Tech 9:1-13
Baarholm, Stansberg (2004): Extreme vertical wave impact on the deck of a gravity-based structure (GBS) platform. Proc. Conf. on Rogue Waves.
Baarholm (2009): Experimental and theoretical study of 3-D effects on vertical wave-in-deck forces. Proc. 2009 OMAE Conf., paper 79560, Honolulu, USA.
Bea, Xu, Stear, Ramos (1999): Wave forces on decks of offshore platforms. J. Waterway, Port, Coastal and Ocean Eng. 124-3 136-144.
Bea, Iversen, Xu (2001): Wave-in-deck forces on offshore platforms. J. Offshore Mechanics and Arctic Eng. 123 10-21.
Chen (2010): Time domain simulation of nonlinear wave impact loads on fixed offshore platform and decks. Proc. 20th ISOPE Conf., pp 364-371.
Cuomo, Tirindelli, Allsop (2007): Wave-in-deck loads on exposed jetties. J. Coastal Eng. 54 657-679.
Cuomo, Shimosako, Takahashi (2009): Wave-in-deck loads on coastal bridges and the role of air. J. Coastal Eng. 56 (2009) 793-809.
Finnigan, Petrauskas (1997): Wave-in-deck forces. Proc. 6th ISOPE Conf., Honolulu, USA.
Kendon, Pakozdi, Baarholm, Berthelsen, Stansberg, Enger (2010): Wave-in-deck impact: comparing CFD, simple methods, and model tests. Proc. 2010 OMAE Conf., paper 20860, Shanghai, China.
Lande, Johannesen (2011): CFD Analysis of Deck Impact in Irregular Waves. Proc. 2011 OMAE Conf., paper 49418, Rotterdam, the Netherlands.
Meng, Chen, Yan (2010): Wave interaction with deck of jetty on a slope. Proc. 2010 Int. Conf. on Coastal Eng., Beijing, China.
Murali, Sundar, Setti (2009): Wave-induced pressures and forces on deck slabs near the free surface. J. Waterway, Port, Coastal and Ocean Eng. 135:269-277.
Murray, Winsor (1997) Impact forces on a jacket deck in regular waves and irregular wave groups. Proc. 1997 Offshore Tech. Conf., paper 8360, Houston, USA.
Raaij, Gudmestad (2007): Wave-in-deck loading on fixed steel jacket decks. J. Marine Structures 20, 164-184.
Schellin, Peric, Moctar (2009): Wave-deck-load analysis for a jack-up platform. Proc. 2009 OMAE Conf., paper 79633, Honolulu, USA.
Tirindelli, Cuomo, Allsop, Lamberti (2003): Wave-in-deck forces on jetties and related structures. Proc. 13th ISOPE Conf., pp 562-569.
Wemmenhove, Lefranc (2011): CFD Calculations of Wave-in-Deck Load on a Jacket Platform - Impact Pressure Decrease due to Air Pocket Formation. Proc. 2011 OMAE Conf., paper 49515. Rotterdam, Netherlands.