Metallic Structures

Code:

EM0071

Acronym:

EM

Keywords
Classification	Keyword
OFICIAL	Applied Mechanics

Instance: 2020/2021 - 1S

Active?	Yes
Responsible unit:	Applied Mechanics Section
Course/CS Responsible:	Master in Mechanical Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEM	19	Syllabus since 2006/2007	5	-	6	45,5	162

Teaching language

Portuguese

Objectives

This syllabus presents methodologies for design of metallic structures.

The international specifications regarding the design of metallic structures are presented, namely the Eurocodes set of Norms (EC1 and EC3). State of the art solutions for the implementation and execution of the structures are also presented.

Learning outcomes and competences

The design of metallic structures requires a solid background in Structural Mechanics as well as a good knowledge of execution norms and structural safety standards.

The students will acquire competences for the design of metallic structures with respect to:

-          Selection of the structural solution

-          Design of structural components and connections

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Solid mechanics: theory of elasticity, bending of beams theory, resistance failure criteria.

Program

1- Stability requirements in metallic structures. Bracing requirements in industrial and office buildings; Definition of wind bracing.

 2- Principles of structural design - Allowable stress design, Ultimate limit state design and serviceability limit states; Definition of structural loads: wind loads, snow loads, seismic loads, etc; Relevant load combination rules according to Eurocode 1.

 3- Computer Aided Structure Analysis. Structure modelling: geometry, materials, resisting sections and loading. Analysis of beam stress and resistance of different components; Analysis and developmentof wind bracing systems.

4- Design of the resisting section according to Eurocode 3 (EC3). Classification of sections. 4.1- Bars under axial compression. 4-2- Buckling length in portal frames.

5- Girder design; Girder stability in PRS profiles (welded reconstituted profiles); Lateral buckling on open section girders

6- Design of bolted and welded connections; beam to column connection; beam to beam connection; truss design.

Mandatory literature

Carlos Reis Gomes; Estruturas Metálicas, 2010
Eurocódigo 3 (EC3) – Projecto de Estruturas Metálicas Parte 1-1 : Regras gerais e regras para edifícios , ENV 1993-1 (1992
Arguelles Álvarez, Ramón 070; Estructuras de acero. ISBN: 84-930002-8-0 (vol. 1)
Manfred A. Hirt et Rolf Bez ; Construction Métallique, Notions fondamentales et methodes de dimensionnement, Vol. 10, L’Ecole Polytechnique Fédérale de Lausanne
Jacques Brozzetti, Manfred A. Hirt et Rolf Bez; Construction Métallique, Examples numériques adaptés aux Eurocodes, L’Ecole Polytechnique Fédérale de Lausanne
Hayward, Alan; Steel detailers. manual. ISBN: 0-632-05572-3
Hirt, Manfred A.; Charpentes métalliques. ISBN: 2-88074-359-1
Portugal Instituto Português da Qualidade; Eurocódigo 1
José Luís Esteves; Exemplo de dimensionamento do pórtico de um pavilhão industrial (EC3), 2017

Complementary Bibliography

Ghali, A.; Structural analysis. ISBN: 0-419-21200-0
Timoshenko, S. P.; Theory of structures

Teaching methods and learning activities

Theoretical-practical classes will be based on the presentation of the themes of the course and complemented with examples. At the same time, students will be ask to develop in groups of two students a project consisting of the Design of a Metalic Structre which will cover al the items of the above program. This project will be supervised by the professor during the semester.

Software

Multiframe

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Exame	40,00
Trabalho prático ou de projeto	60,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Elaboração de projeto	66,00
Estudo autónomo	48,00
Frequência das aulas	48,00
Total:	162,00

Eligibility for exams

The students are required to attend at least 75% of the classes.

Calculation formula of final grade

Final evaluation on the syllabus will be done with the presentation of the project by the student 60% and the final examination 40%.
To pass the course students must have a minimum grade of 10.0 in practical work and 7.0 in final exam.
Final classification in the discipline of more than 17 values will be subject to oral examination to defend the classification.
The report of the project will consist of a document containing design specifics and general engineering drawings of the project.
The delivery of the Project report coincides with the school calendar date for the end of the teaching component.

Special assessment (TE, DA, ...)

Students (TE, DA, ...) are subject to the same evaluation system for ordinary students.