Track Superstructure

[This is a draft page]

I’ll collect here all my posts on track superstructure and try to arrange them in a logical order.

Theoretical elements

Track Superstructure Components

special-ibj-insulated-joint-cwr-high-speed

  • Expansion joints and adjustment switches
  • Ball & claw – switch-stock rails cooperation devices

ball_and_claw_desvios_ferroviarios_bugarin_creep_monitor_sc_stress_transfer_trk_3011_2102_switch_cwr

  • Rerailing device
  • Derailment devices and switches
  • Marshaling humps
  • Slab track systems
  • Transition zones from slab to ballasted track
  • Track superstructure for high speed track
  • Maglev guideway

Jointed track

Jointed_Track_maximum_Joint_Gap_CWR_Critical_Rail_Temperature_CRT_Expansion_Stress_British_Railway_fishplate_bolt_NR_TRK001_Inspection_and_maintenance_Permanent_Way

gap-variance-short-long-rail-limit-thermal-stress-limit

  • Gap variation diagram of the restrained expansion track superstructure

Jointless (CWR) track

  • CWR definition
  • Gap variation diagram of an expansion joint
  • Gap variation diagram of an adjustment switch
  • White rails – painting the rail white to reduce the caloric energy and thermal stress

Italy-CWR-track-rails-painted-white-critical-temperature-reduction-CRT-buckling-risk-hot-weather-binario-rotaie-bianche

  • Stress transition zones. CWR thermal breathing
  • Stressing principles
  • Buckling prevention
  • The theory of track bucking

CWR_CRT_mamagement_buckling_SAP2000_Finite_Modelling_Analysis_rail_buckle_high_temperature_continuous_welded_rail_track_deffect

  • Critical rail temperature (CRT)
  • Track – bridge interaction

fea_finite-element-model-track-bridge-interaction-stress-adjustment-switch-high-speed-engineering-expansion-joint-uic-774-3-expert-zlr-longitudinal-restraint_constantin_ciobanu_research

 

 

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