Prestresssed Structures

Code:

PRODEC019

Acronym:

EPF

Keywords
Classification	Keyword
OFICIAL	Civil Engineering - Structures

Instance: 2023/2024 - 1S

Active?	Yes
Responsible unit:	Department of Civil and Georesources Engineering
Course/CS Responsible:	Doctoral Program in Civil Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
PRODEC	0	Syllabus since 2007/08	1	-	5	45	135

Teaching language

Suitable for English-speaking students

Objectives

To learn more deeply the concepts related to the modeling of concrete behavior and to the design of concrete structures. To learn different methods and techniques for concrete structural analyses, design and implementation of laminar concrete structures (walls and slabs) and prestressed concrete structures.

Learning outcomes and competences

Describe main concepts related to the analysis and design of structures which behaviour is far from linear relationships. To relate models that describe the uniaxial behavior of concrete elements subjected to tension or compression with specific design methodologies. To identify different techniques for applying prestress on concrete structures and the respective methods of analysis and design; Calculate and develop solutions based on learned structural methods, relying on European structural codes. To draw structural solutions that illustrate the obtained design.

Working method

Presencial

Program

Chapter 1 - Models for the analysis of behaviour and design of concrete structures
Material properties. Models for the analysis of behaviour of structural members under tension and compression. Localized compression. Confined concrete. Design of walls, slabs and shells. Laboratory experimental tests.
Chapter 2 - Design of regions with discontinuities
Strut and tie models: analysis and geometry. Design and verification of the model nodes. Corbels. Deep beams.
Chapter 3 - Prestressed concrete structures
Prestress technology. Equivalent loads. Design of cross sections. Design of isostatic beams. Evaluation of prestress losses. Hyperstatic structures. Construction phasing.
Chapter 4 - Analysis and design of slabs
Types of slabs and behaviour performance. Methods for evaluating the internal forces. Flexural design. Punching. Slabs prestressed with unbounded tendons. Constructive provisions and detailing.

DEMONSTRATION OF THE SYLLABUS COHERENCE WITH THE CURRICULAR UNIT'S OBJECTIVES:

This curricular unit, Prestressed Structures, completes the training in the analysis and design of structural concrete and will focus on the study of types of structures not covered previously with necessary in-depth, namely, laminar concrete structures (walls and slabs) and prestressed concrete structures.

 

Mandatory literature

Joaquim A. Figueiras; Compilação de textos e notas de apoio às aulas
Comité Euro-International du Béton;CEB-FIP model code 1990. ISBN; 0-7277-1696-4
Féderation Internationale du Béton;Structural concrete. ISBN; 2-88392-041-X (vol. 1)
Collins, Michael P.; Prestressed concrete structures. ISBN: 0-13-691635-X
CEN - Comité Europeu de Normalização;Norma Europeia - Eurocódigo 2; Projecto de estruturas de betão, Abril 2004
Leonhardt, Fritz; Construções de concreto (Concreto Protendido - Vol. 5)

Teaching methods and learning activities

All the subjects of the course are presented during theoretical classes, where the theories and models are introduced, together with the resolution of some representative practical exercises. The practical exercises to be solved by the students are discussed during practical classes. Laboratory work, visits to conferences and construction works complete the learning outcomes.

DEMONSTRATION OF THE COHERENCE BETWEEN THE TEACHING METHODOLOGIES AND THE LEARNING OUTCOMES:

Calculate and develop solutions based on learned structural methods, relying on European structural codes. To draw structural solutions that illustrate the obtained design. Discuss and compare different structural solutions and hierarchical them in order to analyze the most appropriate. Discuss the structural code proposals based on the knowledge acquired in the interpretation of models that describe the structural behaviour. To recommend and formulate alternatives to proposals that are currently used, in order to formulate realistic solutions. Recommend new proposals to overcome shortcomings in the adopted procedures. Consider alternative solutions to be used in the future. Acquisition of a set of skills to elaborate a structural project, which are related to the analysis and design of laminar concrete structures subjected to high local forces, prestressed structures and the respective construction phases and specific issues related to slabs, namely, waffle slabs.

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Trabalho escrito	100,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	60,00
Trabalho escrito	60,00
Total:	120,00

Eligibility for exams

Achieving final classification requires compliance with attendance at the course unit, according to the FEUP assessment rules.

Calculation formula of final grade

Work grade (100%)