[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
- The physics of rail thermal expansion
- Track Longitudinal Resistance
- Track Lateral Resistance
- Joint Resistance
- Free Thermal Expansion Superstructure
- Restrained Thermal Expansion Superstructure
Track Superstructure Components
- Expansion joints and adjustment switches
- Ball & claw – switch-stock rails cooperation devices
- 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
- When a rail can be called long – gap variation diagram of the free expansion track superstructure
- 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
- Stress transition zones. CWR thermal breathing
- Stressing principles
- Buckling prevention
- The theory of track bucking
- Critical rail temperature (CRT)
- Track – bridge interaction
§j
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