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: In 2003, the U.S. Army Corps of Engineers issued ERDC/ITL TR-03-3, which interpreted eight of the 44 full-scale, low-velocity, controlled-impact barge train experiments conducted at the decommissioned Gallipolis Lock at Robert C. Byrd Lock and Dam. An easy-to-use "empirical correlation" was derived, reporting the maximum impact force (normal to the wall) as a function of the linear momentum normal to the wall (immediately before impact). This empirical correlation was cited in ETL 1110-2-563 (April 2004) for impacts with stiff-to-rigid walls that do not involve damage to either the corner barge or the wall; a limiting impact force of Soo kips (capping the empirical correlation) was cited. In this technical report, we provide a basis for revising the "capping force" cited in ETL 1110-2-563, based on the computation of the "crushing" force imparted during a glancing blow of the impact corner at the bow with a lock approach wall. A second limiting force due to the limit state of lashing forces during a glancing blow impact is addressed in the USACE technical report ERDC/ITL TR-05-1. The lower of the two limiting forces-due to the crushing of the barge impact corner or to the failure of the lashings- "caps" the empirical correlation.

us army corps of engineers: engineer research and development center (knowledge core)

Limiting Impact Force Due to Yielding and Buckling of the Plates and Internal Structural Frame at the Impact Corner of the Barge during Its Glancing Blow Impact with a Lock Approach Wall