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eLibrary Search

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22 Feb 2013

Technical Reports

Next-Generation Foundations for Special Trackwork – Phase I

Author
Xinggao Shu, David Davis, and Muhammad Akhtar

Subject Track, Tracks & Structures, Track/Train Interactions

Keywords: Dynamic load environment, special trackwork frog foundations, wheel-rail impact, modeling

Abstract: This report reviews the dynamic load environment and failure modes of special trackwork frog foundations. Key measurements taken under a 39,000-pound wheel load traffic at the...

Report Number
DOT/FRA/ORD-13/10
Office
RRD

30 Sep 2010

Reference Materials

FY2010 Rail Line Relocation Non-Competitive Projects

Subject Tracks & Structures

Keywords: FY2010, RLR, awards, projects, grants

1 May 2003

Technical Reports

Attentuation of Dynamic Response of Special Track Work Foundations Subjected to Impact Loading

Author
Satya P. Singh, David D. Davis, Don Guillen, David Williams

Subject Tracks & Structures

Keywords: High Impact Loads, Damping, Wood Tie Ballasted Track, Concrete Tie Ballasted Track

Abstract: This report deals with damage to special track work due to high impact loads and the beneficial effect of increasing damping in these foundations. Additional damping attenuates...

Report Number
DTFR53-93-C-00001
Office
RRD

1 Feb 1986

Technical Reports

Wheel Unloading of Rail Vehicles Due to Track Twist

Author
D. Tyrell, H. Weinstock, R. Greif

Subject Tracks & Structures

Keywords: nadal's limit

Abstract: An analysis is presented describing the effect that track twist has on the loads carried by the wheels of a rail car. Wheel unloading is determined as a function of the difference...

Report Number
DOT/FRNORD-85/14
Office
RRD

1 May 1983

Technical Reports

Determination of Residual Stresses in Rails

Author
Federal Railroad Administration; J.J. Groom

Subject Fatigue Management, Track, Tracks & Structures, Track/Train Interactions

Keywords: Fatigue, Rail stress

Abstract: A destructive sectioning technique for measuring the complete three-dimensional residual stresses in a rail cross section was developed. The technique was applied to four tangent...

Report Number
DOT/FRA/ORD-83/05
Office
RRD