A method of designing a concrete railway sleeper

Stevens, John Nicholas and Dux, Peter F. (2003). A method of designing a concrete railway sleeper. WO2004/018772.

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Creator Stevens, John Nicholas
Dux, Peter F.
Patent title A method of designing a concrete railway sleeper
Date of issue 2003-03-04
Patent owner The University of Queensland
Patent number WO2004/018772
Country of origin Australia
Language eng
Subjects 090506 Structural Engineering
Abstract/Summary A method of designing a concrete sleeper, the method including the steps of determining a loading spectrum for a length of railway track; choosing a trial sleeper design having known structural properties including bending capacity at a rail seat and the tendon and concrete stresses for a range of bending moments; determining a load distribution for the railway track including calculating a bending moment in the sleeper for a predetermined load at a known distance from the sleeper; calculating an ultimate load based on the loading spectrum; comparing the ultimate load with the bending capacity at the rail seat for the sleeper; determining fatigue life of the sleeper based on the loading spectrum, load distribution, and tendon and concrete stresses; comparing the calculated fatigue life of the sleeper with predetermined safe fatigue life values.

Document type: Patent
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Thu, 20 Apr 2006, 01:47:51 EST