Ultimate strength analysis of inland tank barges
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1997-06-16
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Abstract:In an effort to understand the cause of recent catastrophic failures of inland tank barges and reduce the possibility of future casualties, the Coast Guard Marine Safety Center (MSC) studied the ?buckling? phenomenon. In conclusion, inland tank barges are not as strong as originally believed. The ABS Inland Rules and current regulations do not address the potential for compressive failure of the hull. A stress analysis should be performed and loading guidance should be developed for each existing barge to ensure compressive stresses in the deck never exceed -9 ksi. Finally, although more stringent
inspection standards are not the solution, marine inspectors, surveyors, operators, and owners should be exposed to the factors affecting the ultimate strength so they can better understand the
?buckling? phenomenon.
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