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.