Accession Number : AD0460518


Title :   UPLIFT PRESSURES UNDER A PIER DECK FROM WATER WAVES.


Descriptive Note : Technical note.,


Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA


Personal Author(s) : Tudor, W J


Report Date : Dec 1964


Pagination or Media Count : 1


Abstract : Data are presented from measurements of uplift pressures on a small pier in order that prototype predictions can be made. A 6-ft long, 1-ft wide steel plate pier in 18 inches water depth and a 4-ft long, 4-in. wide, wood pier with cross bracing in 9 inches water depth were placed in both uniform and impulsive-type wave trains with wave amplitudes (still water to crest) from 0 to 6 inches, periods from 0.75 to 4 seconds, and lengths from 4- to 30-ft long in a long wave flume and also in a rectangular wave basin. Measurements of the uplift pressures (both positive and negative) were then made on the underside of the piers with initial still water levels ranging from 0 to 3 inches below the pier decks. The information presented should aid in assessment of damage caused by large conoidal waves on the underside of horizontal elements of marine and waterfront structures. The steel plate measurements on a horizontal floor may be used for offshore platforms. (Author)


Descriptors :   *MARINE ENGINEERING , WATER WAVES , PIERS , PIERS , STEEL , WOOD , MODEL BASINS , MATHEMATICAL MODELS , STRESSES , FAILURE(MECHANICS) , TEST METHODS , TEST EQUIPMENT


Distribution Statement : APPROVED FOR PUBLIC RELEASE