Course Details
Concrete Structures (S)
Academic Year 2025/26
Course Guarantor
Institute
Language of instruction
Czech, English
Credits
5 credits
Semester
winter
Forms and criteria of assessment
course-unit credit and examination
Offered to foreign students
To offer to students of all faculties
Course on BUT site
Lecture
13 weeks, 2 hours/week, elective
Syllabus
- 1. Introduction, basic concept of prestressing. Behaviour of non-prestressed and prestressed concrete beams. Material properties, manufacturing.
- 2. Prestressing technology, basic terminology. Pre- and post-tensioning prestressed concrete, prestressing systems.
- 3. Prestressing and its changes.
- 4. Effects of prestressing on concrete members and structures. Equivalent load method. Design of prestressing using the load balancing method. Influence of the construction metod on design of prestressed structures.
- 5. General principles of prestress members dimensioning. Ultimate limit state (ULS) of prestressed members loaded by axial force and bending moment, decompression state, initial stress-state of the cross-section. Prestressed members loaded in shear and torsion, stress analysis, proportioning.
- 6. Analysis of the anchorage zone - stress, calculation model, check of resistance, reinforcement. Serviceability limit states (SLS). Limitation of stress, crack resistence, calculation of crack width. Control of deflection.
- 7.–8. Design and realisation of selected prestressed structures of building and engineering constructions.
- 9. Design of concrete structures exposed to fire. The effect of the fire to the structure. Determination of fire resistance.
- 10.–11. The behaviour of materials during effects of fire. Design approaches. Simplified computational methods.
- 12. Principles of structural approach to the reconstruction of concrete and masonry structures and foundations, methods of strengthening.
- 13. Strengthening of concrete and masonry structures by prestressing – methods of strengthening, realisation, structural analysis.
Exercise
13 weeks, 2 hours/week, compulsory
Syllabus
- 1. Effect of prestressing on statically determinate structures. Students are to solved tasks individually.
- 2. Project: Design and assessment of prestressed roof girder. Action and combination of loads, design of cross-section, characteristics of materials, types of prestressing steels, structural requirements.
- 3.–4. Continuation of project. Design of eccentricity and magnitude of prestressing force, design of amount of prestressed strands.
- 5.–6. Continuation of project. Immediate (short-term) losses of prestressing. Long-term (time dependent) losses of prestressing.
- 7. Continuation of project. Verification of design by serviceability limit state – stress limitation, crack control.
- 8.–9. Continuation of project. Verification of design by ultimate limit state – bending moment.
- 10. Continuation of project. Scheme of girder reinforcement by prestressing strands.
- 11.–12. Design of concrete structures exposed to fire.
- 13. Project and tasks submission. Credit.