Course Details

Railway Constructions I

Academic Year 2024/25

NNA009 course is part of 1 study plan

NPC-SIK Winter Semester 1st year

Course Guarantor

Institute

Language of instruction

Czech

Credits

4 credits

Semester

winter

Forms and criteria of assessment

course-unit credit and examination

Offered to foreign students

Not to offer

Course on BUT site

Lecture

13 weeks, 2 hours/week, elective

Syllabus

1. Wheel-rail interface, wheelset and track dimensions, equivalent conicity, lateral movement of wheelset on the straight track. 2. Wheel-rail contact stresses, Hertz theory, adhesion and adhesion force, train resistances. Vogel theory, Heumann theory, forces on wheelset, derailment condition. 3. Static track design, rail stresses, sleeper stresses. 4. Theory of continuous welded rail. Longitudinal forces, stability of continuous welded rail. 5. Permanent way on bridges. Continuous welded rail on bridges. 6. The single turnout, turnout collections 7. Design of switches and crossings, design of turnouts in a curve 8. Simple turnout connections. Single crossover in curve. 9. Structural components of switches and crossings. stock rail, switch rail (blade), common and crossings, bearers, locking device, fastenings systems. 10. Sets of turnouts. 11. Vertical stresses on ballast bed and formation and its deformation resistance. Climatic conditions. 12. Dynamic track design. Principles, the simple dynamic model of track wheel interaction. Dynamic models of track, critical train velocity, dynamic response on vehicle, wheelset, transfer of vibrations between wheel and rail. 13. The rail, assessment, defects and failures , grinding.

Exercise

13 weeks, 1 hours/week, compulsory

Syllabus

1. Wheel-rail interface, wheelset and track dimensions, equivalent conicity, lateral movement of wheelset on the straight track. 2. Vogel theory, Heumann theory, forces on wheelset 3. Static track design, calculation of rail stresses and deflection 4. Calculation of longitudinal forces, stability of continuous welded rail 5. Permanent way on bridges. Continuous welded rail on bridges. 6. Layout of single turnout 7. Single turnouts in curve 8. Single crossover in curve 9. Simple turnout connections 10. Sets of turnouts 11. Consultations 12. The design drawings delivery 13. Credit.