| Código |
14543
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| Ano |
1
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| Semestre |
S1
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| Créditos ECTS |
6
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| Carga Horária |
OT(15H)
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| Área Científica |
Engenharia Civil
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Learning outcomes |
The pedagogical objectives of the course are defined in terms of skills to be acquired by students, prioritized into three levels, in order of decreasing depth and relative semester workload:
Proficiency of
a) Design of statically determinate and indeterminate prestressed structures;
b) Supervision of the construction of prestressed elements and structures.
Understanding of:
a) Fundamental principles of prestressing;
b) Materials, methods and techniques for prestressing and complementary operations.
Recognition of:
a) Special requirements for the demolition of prestressed structures;
b) Rehabilitation solutions for prestressed structures.
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Syllabus |
1. Introduction. Prestressing methods and techniques.
2. Fundamental concepts. Comparisons between prestressed and reinforced concrete. Material properties. Section analysis.
3. Prestress losses. Instant losses and deferred losses.
4. Design of statically determinate prestressed concrete beams. Service limit states. Limit stress equations. Magnel diagram. Limit zone.
5. Stability check. Ultimate limit states of resistance in bending and shear.
6. Anchorage zones. Action of localized forces. Safety check and construction provisions.
7. Statically indeterminate structures. Primary and secondary bending moments. Linear transformation and concordance. Equivalent loads method. Service behaviour and ultimate resistance. Redistribution of internal forces.
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Teaching Methodologies and Assessment Criteria |
The teaching method is based on the analysis of examples, from the point of view of forces and displacements, with insights on the design of structures.
To understand the physical meaning of the involved entities, strut-and-tie models are used whenever possible, allowing a holistic view of the structure.
Media are used for lecture support.
In classes, the students get contact with anchors, strands and steel bars available for direct handling in the laboratory. The practical exercises are grouped into worksheets to be solved individually along the semester. Handwriting reports are encouraged.
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Main Bibliography |
1. Naaman, Antoine E., “Prestressed Concrete Analysis and Design: Fundamentals”, Third Edition, 2012; 2. Lin, T.Y. and Burns, Ned H., “Design of Prestressed Concrete Structures”;
3. Nawy, Edward G., “Prestressed Concrete”: A fundamental Approach”, Prentice-Hall, 2002;
4. Nilson, Arthur H. and Darwin, David, “Design of Prestressed Concrete” McGraw-Hill 1997;
5. Walther, René and Miehlbradt, Manfred, “Dimensionnement des Structures en Beton”, Presses polytechnics et Universitaires romandes, 1990;
6. NP EN 1992-1-1:2010 Eurocódigo 2, 2010.
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| Language |
Portuguese. Tutorial support is available in English.
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