Accession Number : ADA328901

Title :   Loading Cycles for the Fatigue Reliability Analysis of Miter Gates.

Descriptive Note : Final rept.,

Corporate Author : BMA ENGINEERING INC DARNESTOWN MD

Personal Author(s) : Ayyub, Bilal M. ; Patev, Robert C. ; Kaminskiy, Mark P. ; Leggett, Mary Ann

PDF Url : ADA328901

Report Date : DEC 1995

Pagination or Media Count : 93

Abstract : Miter gates at navigation locks experience loading cycles from emptying and filling of a lock's chamber as they are opened to allow traffic through the locks. Reliability analysis of miter gates at navigation locks requires definition of (a) non-performance modes, (b) loads, (c) structural strength, and (d) methods of reliability analysis. Due to the cyclic loading nature of miter gates, the fatigue of critical details requires examination using reliability methods. The assessment of fatigue reliability of these details as a function of time requires the knowledge of strength, stress ranges, and loading cycles for these details. Prediction of loading cycles on miter gates for use in the assessment of fatigue reliability for miter gates is described. Correlation of field data for pool and tailwater elevations and barge traffic to form a loading histogram to be utilized to better predict the loading history of miter gates is explained.

Descriptors :   *FATIGUE(MECHANICS), *HYDRAULIC GATES, TRAFFIC, LOADS(FORCES), STRENGTH(MECHANICS), CYCLES, RELIABILITY, NAVIGATION, HISTOGRAMS, BARGES, LOCKS(WATERWAYS).

Subject Categories : Hydraulic and Pneumatic Equipment
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE