Concrete Structures (S)
FAST-NLA022Acad. year: 2020/2021
Principle of prestressing. Basic concept of pretensioning and post-tensioning. Material properties. Pretensioning operations, technology. Post-tensioning operations, technology. Losses of prestressing. Equivalent load method, statically determinate and indeterminate structures. Response of structures subjected to prestressing, decompression state. Resistance of against cracks. Tensile stresses in the concrete after cracking. Control of crack width and deflection. Ultimate limit state, full stress-strain response, shear resistance. Design of prestressed concrete structural members and structural systems, analysis and detailing. Design of concrete structures exposed to fire. Methods and static analysis of strengthening of concrete and masonry structures.
Institute of Concrete and Masonry Structures (BZK)
Offered to foreign students
Of all faculties
Learning outcomes of the course unit
A student gains these knowledge and skills:
• Understanding of the behaviour of prestressed concrete structures.
• Design of prestressed concrete structural members and structural systems, analysis and detailing.
structural mechanics, theory of elasticity and plasticity, design of concrete members, design of concrete and masonry structures
Recommended optional programme components
Recommended or required reading
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Language of instruction
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.
Understanding of the behaviour of prestressed concrete structures. Design of prestressed concrete structural members and structural systems, analysis and detailing.
Specification of controlled education, way of implementation and compensation for absences
Extent and forms are specified by guarantor’s regulation updated for every academic year.