Accession Number:

ADA492851

Title:

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

Descriptive Note:

Final rept.

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB

Personal Author(s):

Report Date:

2008-11-01

Pagination or Media Count:

58.0

Abstract:

In 2003, the U.S. Army Corps of Engineers issued ERDCITL 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 ERDCITL 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.

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE