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52550
  
  

  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
    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
    1
Feb
1982
Technical Reports
User's Guide for a Computerized Track Maintenance Simulation Cost Methodology
Author
          Richard L. Smith, Allan T. Krauter, Joseph Betor

Subject
                    Tracks & Structures

**Keywords:** Life Cycle Costs, Track Standards, Track Maintenance Planning, Computer Simulation
**Abstract:** This User s Guide describes the simulation cost modeling technique developed for costing of maintenance operations or track and its component structures. The procedure...
Report Number
              FRA/ORD-82/08

  Office
              RRD

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