Course Details

Concrete Structures (S)

Academic Year 2024/25

NLA022 course is part of 3 study plans

NPA-SIS Winter Semester 1st year

NKC-SIS Winter Semester 1st year

NPC-SIS Winter Semester 1st year

Course Guarantor


Language of instruction

Czech, English


5 credits



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


13 weeks, 2 hours/week, elective


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.


13 weeks, 2 hours/week, compulsory


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.