Accession Number : ADA019694

Title :   Structural Analysis of the New Orleans Inner Harbor Navigational Canal Lock Wall.

Descriptive Note : Miscellaneous paper (Final),

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Rieck,Peter J. ; Walker,Robert E.

Report Date : DEC 1975

Pagination or Media Count : 81

Abstract : A beam theory structural analysis was conducted on the 50-year-old Inner Harbor Navigational Canal at New Orleans. A moment of 122 ft-kips on a wall section having an allowable moment capacity of 49 ft-kips was determined when the lock was dewatered. However, there was no evidence of structural failure during previous dewatering operations. The moment at the wall section, determined from a three-dimensional finite element analysis, was 89 ft-kips, and stresses in the wall were less than yield stresses for the materials. The ultimate moment capacity of the section was found to be 94 ft-kips. Using the ultimate moment capacity of the section, when a load factor of 1.7 is applied to the loading and a capacity reduction factor of 0.9 is applied to the section as required by American Concrete Institute design procedures, the ultimate moment capacity of the section would be exceeded. A procedure is outlined to monitor lock wall deflections during dewatering operations to determine impending failure.

Descriptors :   *Inland waterways, *Canals, Structural properties, Finite element analysis, Stress analysis, Soil dynamics, Louisiana

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE