Structural Concrete I

Code:

EC0031

Acronym:

EBET1

Keywords
Classification	Keyword
OFICIAL	Structures

Instance: 2012/2013 - 1S

Active?	Yes
Responsible unit:	Structural Division
Course/CS Responsible:	Master in Civil Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEC	397	Syllabus since 2006/2007	4	-	8	75	214

Teaching language

Suitable for English-speaking students

Objectives

JUSTIFICATION:
The Course Unit introduces the fundamental principles and the basis for the design of reinforced concrete elements (tension members, columns and beams). Scientific and technical aspects of the analysis and design of reinforced concrete structures are discussed, according to european standards (Eurocodes). These subjects, very relevant to the formation of a civil engineer, are essential for the professional activity in the areas of design, and management and control of construction.

OBJECTIVES:
Presentation of the principles, theories and models for the analysis and design of structural concrete elements. To analyze the behaviour of both reinforced concrete and prestressed concrete elements, either in the elastic range or close to failure. Application of the provisions of Eurocode 2 concerning the structural concrete. Initiation of students to the practice of structural design of reinforced and prestressed isostatic concrete elements.

SKILLS AND LEARNING OUTCOMES:

Knowledge: To describe the principles, theories and models suitable for the analysis and design of reinforced and prestressed concrete members.

Comprehension: Understanding the behaviour of reinforced and prestressed concrete elements, both under service conditions (linear-elastic behaviour) and close to failure (nonlinear behaviour). Interpretation and application of the Eurocode 2 rules to the analysis and design of structural concrete elements.

Application: To develop solutions for the appropriate design of isostatic reinforced and prestressed concrete elements, by applying the provisions of national regulations and of Eurocode 2. Elaboration of drawings for the correct construction of the designed elements.

Evaluation: Development of criticism in regards to the obtained solutions. Choice of safe structural solutions with the best cost/performance ratio.

Research in Civil Engineering: Development of interest in knowledge discovery, by working on Civil Engineering problems without unique solutions. Stimulation of critical thinking and creativity, seeking for improved solutions for structural concrete elements.

Civil Engineering Project: Initiation of the students to the design of reinforced and prestressed concrete members.

Civil Engineering Practice: Development of appropriate and feasible solutions for reinforced and prestressed concrete members. Presentation of solutions in drawings, including all the necessary information for proper execution.

Program

Chapter 1 - Introduction. Bases of design. Historical perspective. Methods of analysis and design. Types of actions. Combinations of actions.
Chapter 2 - Material properties. Concrete: classification and constitutive relations. Reinforcing steel. Composite behaviour of concrete and steel.
Chapter 3 - Cross sections subjected to axial force and to bending. Sections subjected to axial forces. General bases of flexure. Sections subjected to uniaxial bending. Sections subjected to uniaxial bending combined with axial force. Prestressed concrete sections. Sections subjected to biaxial bending.
Chapter 4 - Reinforced concrete beams. Shear. Analysis of the behaviour of reinforced concrete beams. Safety evaluation in terms of shear resistance. Design and detailing of beams.
Chapter 5 - Torsion. Torsion combined with shear and with bending moment.
Chapter 6 - Second order effects in columns. Design and safety verification of columns including the second order effects according to the Eurocode 2, based on the method of nominal curvature.

DISTRIBUTION:
Scientific content – 70%
Technological content – 30%

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

The curricular unit introduces the fundamental principles and the basis for the design of reinforced concrete elements (tension members, columns and beams). Scientific and technical aspects of the analysis and design of reinforced concrete structures are discussed, according to european standards (Eurocodes). These subjects, very relevant to the formation of a civil engineer, are essential for the professional activity in the areas of design, and management and control of construction.

Mandatory literature

- Design of Concrete Structures. A. H. Nilson, McGraw-Hill International Editions, 12th Edition, 1997.
- Reinforced Concrete Design to Eurocode 2. B. Mosley, J. Bungey and R. Hulse, Palgrave Macmillan, 6th Edition, 2007.
- Dimensionnement des Structures en Béton (Volume 7). R. Walther et M. Miehlbradt, Presse Polytechniques et Universitaires Romandes, EPFL, 1990.
- Eurocódigos 0, 1 e 2.
- Textos e notas de apoio preparadas pelos docentes.

Complementary Bibliography

- Construções de Concreto (Vols. 1, 3 e 4). F. Leonhardt e E. Mönnig, Editore Interciência Ltda, 1978.
- Hormigón Armado (Vols. 1 y 2). P. Jiménez Montoya, A. Garcia Meseguer, F. Morán Cabré, Editorial Gustavo Gili, S.A., 13ª Edición, 1994.

Teaching methods and learning activities

All subjects are presented and discussed during theoretical classes, where the theories and models are explained and elucidative exercises are solved.
Practical classes are dedicated to the discussion of the proposed exercises, and to clarification of the student doubts.

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

Students are encouraged to develop solutions for the appropriate design of isostatic reinforced and prestressed concrete elements, by applying the provisions of national regulations and of Eurocode 2. Elaboration of drawings for the correct construction of the designed elements. Development of criticism in regards to the obtained solutions. Choice of safe structural solutions with the best cost/performance ratio. Development of interest in knowledge discovery, by working on Civil Engineering problems without unique solutions. Stimulation of critical thinking and creativity, seeking for improved solutions for structural concrete elements.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Attendance (estimated)	Participação presencial	65,00
	Total:	-	0,00

Eligibility for exams

“Achieving final classification requires compliance with attendance at the course unit. It is considered that
students meet the attendance requirements if, having been regularly enrolled, the number of absences of
25% for each of the classes’ types is not exceeded.
The following cases are exempted from the attendance requirements: i) cases prescribed by law, including
student workers; ii) students who were admitted to exams in the previous academic year.”

Calculation formula of final grade

The final grade is defined with basis on a distributed evaluation – which consists of two written evaluations performed during the theoretical classes - and a final exam. (The distributed evaluation is optional). All the evaluation components are expressed on a 0-to-20 numerical scale.

The final grade, FG, is obtained with the following formula:
FG = max {CT ; FE}

where,
CT = PA / 2 x CAD1 + PA / 2 x CAD2 + PF x FE

CAD1 – classification of the written evaluation 1 performed during a theoretical class;
CAD2 – classification of the written evaluation 2 performed during a theoretical class;
FE – classification of the final exam obtained on the “Época Normal” and/or the “Época de Recurso”.

The classifications CAD1, CAD2 and FE are associated with the following weighting factors:
PA = 25%
PF = 75%

NOTE 1: The written evaluations, associated to the classifications CAD1 and CAD2, are optional. If the student does not obtain any of these classifications, the respective weight is added to PF.

NOTE 2: All the students registered on the unit course are classified according to this method.

NOTE 3: Students registered on the unit course in the scholar year 2011-2012 may keep the corresponding distributed evaluation. In that case, the weights to be used are the ones indicated on the scholar year of 2011-2012.

Special assessment (TE, DA, ...)

Observations

PREVIOUS KNOWLEDGE:
The non-attendance and/or approval in the course units of Strength of Materials, Mechanics and Structures Analysis will create great difficulties in learning the present Course Unit.

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Working time estimated out of classes: 5 hours.