Course Details
Selected Chapters of Concrete Structures 1 (S)
Academic Year 2023/24
NLB025 course is part of 1 study plan
NPC-SIS Summer Semester 1st year
Static analysis, plasticity method, lower-bound theorem, upper-bound theorem. Truss analogy, material properties, application for reinforcement design of structures and details. Analysis of beams loaded in shear, variable angle truss model, interaction of internal forces. Compression field theory. Physical principles of creep, shrinkage and ageing of concrete drying up of concrete, solution of state of stress from temperature load, principles of linearity and superposition. Creep models – assumptions, mathematical functions, properties. Integral and differential equations, affinity of creep, stress history. Non-homogeneity of structures. Force method for creep analysis. Structural analysis of step-by-step constructed structures. The influence of prestressing, step-by-step construction, and rheological effects on structures. Simplified and numerical methods for creep analysis and their combination by FEM. Design of concrete structures for fatigue. Waterproof foundation structures - concept, analysis, design, realization, rehabilitation. Designing of concrete structures reinforced with FRP reinforcement.
Course Guarantor
Institute
Objective
Understanding of the principle of concrete plasticity and its application in design of concrete structures.
To provide the students with the modern methods of design of the members loaded in shear and torsion, optionally in interaction with other components of internal forces.
Understanding of the principles of rheological effects of concrete and mastering the methods for analysis of these effects on structures.
Understanding of the methods for analysis of long-term effects of concrete and composite structures in view of the rheological properties of concrete.
To provide the students with the modern methods of design of the members loaded in shear and torsion, optionally in interaction with other components of internal forces.
Understanding of the principles of rheological effects of concrete and mastering the methods for analysis of these effects on structures.
Understanding of the methods for analysis of long-term effects of concrete and composite structures in view of the rheological properties of concrete.
Knowledge
A student gains these knowledge and skills:
• Understanding of the principles of concrete plasticity and its application in concrete structures design.
• Knowledge of the modern methods of design of the members stressed by shear and torsion, optionally in interaction with others types of internal forces.
• Understanding of the principles of rheological effects of concrete and mastering the methods for analysis of these effects on constructions.
• Understanding of the methods for analysis of long-term effects of concrete and composite structures in view of the rheological properties of concrete.
• Understanding of the principles of concrete plasticity and its application in concrete structures design.
• Knowledge of the modern methods of design of the members stressed by shear and torsion, optionally in interaction with others types of internal forces.
• Understanding of the principles of rheological effects of concrete and mastering the methods for analysis of these effects on constructions.
• Understanding of the methods for analysis of long-term effects of concrete and composite structures in view of the rheological properties of concrete.
Syllabus
1. The relationship of the construction design and computational model. Static analysis, plasticity method. Strut and tie model. Proportioning of nodes, struts and ties.
2. Deep wall beam. Reinforcement design of brackets, corbels and discontinuity zones.
3. Variable angle truss model, interaction of internal forces acting on concrete cross-section.
4. Design of concrete structures to fatigue - the concept and methods for the assessment of concrete and reinforcement.
5. Hybrid structures. Influence of rheology of concrete on structural behaviour. Principal of rheological phenomena. Effects of creep and shrinkage, non-homogeneity of structures. Colonnetti’s theorems. Components of concrete strain.
6. Delayed strain. Principle of linearity (stress, temperature) and superposition, stress history, ageing of concrete.
7. Simplified and numerical methods for the analysis of rheological effects on structures – effective modulus methods, effective time method.
8. Time discretization method, its combination with finite element method.
9. Structural analysis of progressively constructed prestressed structures, force method, influence of shrinkage and creep.
10. Experimental structural analysis, model similarity. Temperature effects on concrete – calculation of temperature stress acting on the structure.
11. Introduction to the problems of waterproof foundation structures designing, conceptual design. Static loads, loads from volumetric changes, other loads including the effect of sedimentation of the object (interaction with the subsoil). Design of waterproof concrete structures.
12. Design of waterproof concrete structures. Calculation and dimensioning. Sealing of joints and penetrations. Implementation principles, examples of implementation. Rehabilitation of defects and failures of waterproof concrete structures (especially crack injection).
13. Use of FRP reinforcement in concrete structures. Manufacturing, material characteristics. Short-term and long-term behavior of FRP reinforcements. Designing of concrete structures reinforced with FRP reinforcement.
2. Deep wall beam. Reinforcement design of brackets, corbels and discontinuity zones.
3. Variable angle truss model, interaction of internal forces acting on concrete cross-section.
4. Design of concrete structures to fatigue - the concept and methods for the assessment of concrete and reinforcement.
5. Hybrid structures. Influence of rheology of concrete on structural behaviour. Principal of rheological phenomena. Effects of creep and shrinkage, non-homogeneity of structures. Colonnetti’s theorems. Components of concrete strain.
6. Delayed strain. Principle of linearity (stress, temperature) and superposition, stress history, ageing of concrete.
7. Simplified and numerical methods for the analysis of rheological effects on structures – effective modulus methods, effective time method.
8. Time discretization method, its combination with finite element method.
9. Structural analysis of progressively constructed prestressed structures, force method, influence of shrinkage and creep.
10. Experimental structural analysis, model similarity. Temperature effects on concrete – calculation of temperature stress acting on the structure.
11. Introduction to the problems of waterproof foundation structures designing, conceptual design. Static loads, loads from volumetric changes, other loads including the effect of sedimentation of the object (interaction with the subsoil). Design of waterproof concrete structures.
12. Design of waterproof concrete structures. Calculation and dimensioning. Sealing of joints and penetrations. Implementation principles, examples of implementation. Rehabilitation of defects and failures of waterproof concrete structures (especially crack injection).
13. Use of FRP reinforcement in concrete structures. Manufacturing, material characteristics. Short-term and long-term behavior of FRP reinforcements. Designing of concrete structures reinforced with FRP reinforcement.
Prerequisites
structural mechanics, numerical methods, concrete structures, prestressed concrete
Language of instruction
Czech
Credits
5 credits
Semester
summer
Forms and criteria of assessment
course-unit credit and examination
Specification of controlled instruction, the form of instruction, and the form of compensation of the absences
Extent and forms are specified by guarantor’s regulation updated for every academic year.
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 2 hours/week, elective
Syllabus
1. The relationship of the construction design and computational model. Static analysis, plasticity method. Strut and tie model. Proportioning of nodes, struts and ties.
2. Deep wall beam. Reinforcement design of brackets, corbels and discontinuity zones.
3. Variable angle truss model, interaction of internal forces acting on concrete cross-section.
4. Design of concrete structures to fatigue - the concept and methods for the assessment of concrete and reinforcement.
5. Hybrid structures. Influence of rheology of concrete on structural behaviour. Principal of rheological phenomena. Effects of creep and shrinkage, non-homogeneity of structures. Colonnetti’s theorems. Components of concrete strain.
6. Delayed strain. Principle of linearity (stress, temperature) and superposition, stress history, ageing of concrete.
7. Simplified and numerical methods for the analysis of rheological effects on structures – effective modulus methods, effective time method.
8. Time discretization method, its combination with finite element method.
9. Structural analysis of progressively constructed prestressed structures, force method, influence of shrinkage and creep.
10. Experimental structural analysis, model similarity. Temperature effects on concrete – calculation of temperature stress acting on the structure.
11. Introduction to the problems of waterproof foundation structures designing, conceptual design. Static loads, loads from volumetric changes, other loads including the effect of sedimentation of the object (interaction with the subsoil). Design of waterproof concrete structures.
12. Design of waterproof concrete structures. Calculation and dimensioning. Sealing of joints and penetrations. Implementation principles, examples of implementation. Rehabilitation of defects and failures of waterproof concrete structures (especially crack injection).
13. Use of FRP reinforcement in concrete structures. Manufacturing, material characteristics. Short-term and long-term behavior of FRP reinforcements. Designing of concrete structures reinforced with FRP reinforcement.
Exercise
13 weeks, 2 hours/week, compulsory
Syllabus
1. Deep wall beam – solving by truss analogy method.
2. Short bracket (corbel) – solving by truss analogy method.
3.–4. Calculating of the effects of creep on concrete structures – principle of superposition.
5.–6. Assessment of the limit of normal stresses from the operating effects of prestressing on the bridge structure – the use of force method for creep calculation.
7. Correction.
8.–9. Calculation of stress in the concrete sections of composite columns by time discretization analysis (basic method TDA).
10. Correction.
11. Possibility of modelling of the creep effect on concrete structures – practical exercises.
12. Final correction.
13. Design submission. Credit.