Analysis of Structures
Code
9400
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Engenharia Civil
Credits
6.0
Teacher in charge
Corneliu Cismasiu, Ildi Cismasiu
Weekly hours
5
Total hours
70
Teaching language
Português
Objectives
This course aims at teaching the students the concept of analyzing the response (member forces and deformations) of indeterminate planar trusses, beams, and frames using classical and up to date methods. By the completion of this course the students should be able to:
Describe and explain underlying assumptions in structural analyses and idealize (model) structures for the purpose of analysis.
Calculate the strain energy stored due to axial, shear and bending
Conduct linear analysis of frame and truss structures (by hand) in order to obtain structural deflections, reactions and internal forces.
Determine displacements and forces in statically determinate or indeterminate beams and frames using the displacement methods of analysis;
Critically evaluate structural response and results.
Prerequisites
Completion of Statics and Strength of Materials I is required.
Strength Materials 2 is very helpful to succeed in Strucutral Analysis 1.
Subject matter
1. Introduction to Structural Analysis.
2.Structural Symmetry
Symmetric structures subjected to general loading
3. Force Method
Pincipals of virtual work and complementary virtual work
Structural indeterminacy. Released structure
Description of the method. Flexibility matrix
Analysis for different loadings
Calculation of displacements in hyperstatic structures
4. Displacement Method
Fundamental solutions of bars and beams
Kinematic indeterminacy. Kinematic ally determinate structure
Description of the method. Direct formulation.
Alternative definition of the stiffness matrix
5. Comparison of Force and Displacement Methods
Duality between the force method and the displacement method
5. Theory of Plates
Thin plates (Kirchhoff''''s) and thick ( Reissner-Mindlin )
Fundamental relations, Lagrange equations and boundary conditions
Some analytical solutions (Navier, Lévy, cylindrical flexion, circular plates)
Modeling of plates with grillage of beams.
Bibliography
Bibliografia principal:
1. A. Ghali, A. M. Neville and T.G. Brown, Structural Analysis. A unified classical and matrix approach. E & FN Spon, 6th edition, 2009
2. J.A. Teixeira de Freitas e Carlos Tiago, Análise elástica de estruturas reticuladas, IST, Lisboa, 2010.
3. C. Cismasiu, I. Cismasiu, Apontamentos das aulas teóricas (disponíveis na página da disciplina)
Bibliografia secundária:
1. Kenneth M. Leet and Chia-Ming Uang and Anne M. Gilbert. Fundamentals of Structural Analysis. McGraw Hill, 3rd ed. 2008
2. R. C. Hibbeler, Structural Analysis. Prentice Hall, 5th edition, 2001
3. W. McGuire, R. H. Gallagher, and R. D. Ziemian,Matrix structural analysis. John Wiley & Sons, Inc., 2nd edition, 2000
4. T. R. G. Smith, Linear Analysis of Frameworks. Ellis Horwood Series in Engineering Science. Prentice Hall Europe, 1983.
Teaching method
The teaching methods are based on theoretical-practical classes.
The theoretical lectures serve to introduce the fundamental concepts of the curricular unit related to each topic followed by simple practical examples solved by the teachers. Then, to give a more practical insight about theoretical concepts and encourage the students initiative and their active participation a larger set of simple applications are solved encouraging the students to work individually or in a group ,to discuss and compare different options of possible solutions and to interpret the results obtained in order to acquire a critical spirit on the structural behavior.
The understanding the application of theoretical concepts are constantly evaluated enabling the identification of critical points in the learning process allowing to suitability adjust the teaching methodology to the students'''''''''''''''' need. The students are encouraged to undertake independent reading both to supplement and consolidate what is being taught/learnt and to broaden their individual knowledge and understanding of the topics.
Individual work, outside of the presencial classes, will be stimulated, by the resolution of a set problems by the use of the computer technology.