. Design for implosion of concrete cylinder structures under hydrostatic loading. Underwater concrete construction; Hydraulic structures. (f) of about , at a distance of 2 inches (50 mm) away from the stif- feners. The test specimens had a clear length between stiffeners of 127 inches (3220 mm). After accounting for the compHance of the stiffener, the "actual" length of the cylinder appeared to be about 130 inches (3300 mm); hence, the effect of stiffener compliance was Figure B-16. Local failure of specimen 5-2 (t/D = , free support). To test for possible reduction


. Design for implosion of concrete cylinder structures under hydrostatic loading. Underwater concrete construction; Hydraulic structures. (f) of about , at a distance of 2 inches (50 mm) away from the stif- feners. The test specimens had a clear length between stiffeners of 127 inches (3220 mm). After accounting for the compHance of the stiffener, the "actual" length of the cylinder appeared to be about 130 inches (3300 mm); hence, the effect of stiffener compliance was Figure B-16. Local failure of specimen 5-2 (t/D = , free support). To test for possible reduction in implosion strength due to sus- tained loading, the implosion resistance of Group 4 specimens was assumed to be equal to that of the average value of Group 3 specimens; , P. /f = Specimen 4-1 was subjected to 85% of this load. After hours of load exposure the specimen imploded, which imphed a strength reduction of 15% for a relatively brief period of sustained 62. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haynes, H. H; Naval Construction Battalion Center (Port Hueneme, Calif. ). Civil Engineering Laboratory. Port Hueneme, Calif. : Naval Construction Battalion Center


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