Universitat Internacional de Catalunya
Structural Calculation II
Other languages of instruction: Catalan, English
Teaching staff
Por correo electrónico
Samuel Molist smolist@uic.es
Cualquier lunes y miércoles lectivo al finalizar la clase y concretando cita previa por mail.
Introduction
Structures 2 focuses mainly on the resolution of steel structures, from an initial approach to the choice of structural typology, simplification, resolution and results.
We have established an ordered working methodology which, through successive simplifications and a reasonable amount of time, will give an idea of the structural behaviour of the initial approach. In other words, an understanding of general behaviour will be more important in achieving a good structural approach than knowing the stress state of each individual section.
Pre-course requirements
-Fiscal area and burden-sharing
-Planning the force equilibrium of a beam
-Finding reactions, shearing and bending moments
-Understanding the basic bending moments of hyperstatic structures
Objectives
At the end of the course, students should be able to resolve simple isostatic steel structures, planning the force equilibrium for each mode and bar, extrapolating the stresses to which the structure is subjected, and representing this data in graphs.
Once the graphs have been completed, students should be capable of pre-dimensioning them with textbook metal profiles, using current regulations. Basically this requires knowledge of pre-dimensioning of beams (to bending and shear test) and pillars (with or without buckling).
As well as learning about steel structures, students should also acquire the minimum basic knowledge for planning wooden structures.
Competences/Learning outcomes of the degree programme
- 12-T - Ability to conceive, calculate, design, integrate in buildings and urban complexes and execute building structures
- 17 - Ability to apply building and technical standards
- 24 - To acquire adequate knowledge of the mechanics of solids, continuous medium and soil as well as the plastic, elasticity and resistance properties of materials for structural works
Learning outcomes of the subject
At the end of this course, students should be able to:
-Draw accurate stress diagrams with the relevant signs
-Distinguish between tangential and normal stresses
-Identify the stresses generated by forces in different parts of a bar and for different types of sections (essentially laminated and circular profiles)
-Pre-dimension 3D metal structures using isostatic models and occasionally simplified hyperstatic ones
-Have sufficient knowledge to correctly plan wooden structures
Syllabus
- BLOCK 1 – THEORY AND PRACTICAL EXERCISES
- BLOCK 2 – PRACTICAL APPLICATION TO THE PROJECT
BLOCK 1
Explanations of the theoretical topics making up the Structures II course will be combined with practical exercises in class involving the direct application of what has been taught.
1 – Introduction + REGULATIONS – Axial Force
2 – Bending Force
3 – Shear Force and Torque
4 – Pure Bending
5 – Complex Unsymmetrical Bending
6 – Buckling I – Unstable supports
7 – Buckling II – Unstable supports
8 – Plastic Calculation (axial and bending)
9 – Joints and welds steel
10 - Introduction to the calculation of wooden structures
BLOCK 2
This section will put into practice the knowledge acquired in the theory classes by applying it to the project that students have been developing in the PROJECTS course. Thus part of the project that involves a metal (preferably) or wooden structure will be taken in order to find a solution (equilibrium – diagrams – dimensioning) until reaching executive project level for the selected section.
1 – Presentation of structural proposal on the student’s own project
2 – Axial force in the project: presentation of pre-dimensioned metal/wooden pillar
3 – Bending force in the project: presentation of pre-dimensioned beam
4 – Shear force and torque in the project: presentation of detail of the anchoring, pins, etc.
5 – Buckling: presentation of a pillar calculated for buckling
6 – Examination-type beam assignments
7 – Examination-type ‘tubing’ assignments
8 – Presentation of executive Structures project. Review of subject matter and any queries about the examination
Teaching and learning activities
In person
Structures are regularly subject to a series of complex external actions which we need to break down into simple hypotheses in order to combine them later on.
Similarly, structures in themselves are generally complex and connections are hybrid (it is unusual to find perfect joints and frames), therefore we also need to simplify these until we reach a system of simple bars that will enable us to obtain force moments that are easy to represent and interpret.
This is the only way of checking the stresses of sections of the bars and obtaining catalogue profiles using the criteria established in the different building standards.
We will therefore be working with simple 3D structures, calculating them and extrapolating the force moments in order to then dimension them with metal profiles.
| TRAINING ACTIVITY | COMPETENCES | ECTS CREDITS |
|---|---|---|
| Class exhibition | 12-T 15-T 17 24 | 0,6 |
| Class participation | 12-T 15-T 17 24 | 0,6 |
| Clase practice | 12-T 15-T 17 24 | 0,6 |
| Tutorials | 12-T 15-T 17 24 | 0,6 |
| Individual or group study | 12-T 15-T 17 24 | 2,5 |
Evaluation systems and criteria
In person
Evaluation will be continuous, assessing the level of participation, class attendance during the course, and the results of practical and theory tests during and at the end of the course.
The best of the following grades:
- Final theory and practical examination 60% + practical coursework 40%, or
- Final theory and practical examination 40% + practical coursework 60%
Class attendance +5% for grades of over 5.00
Minimum exam grade for averaging: 4.00
Minimum practical coursework grade for averaging: 4.00
ALL PRACTICAL EXERCISES SHOULD HAVE A MINIMUM CORRECTION IN CLASS BY ONE OF THE TWO TEACHERS TO BE EVALUATED. OTHERWISE THE MAXIMUM NOTE WILL BE A 4.00.
PRACTICAL EXERCICES DELIVERED AFTER THE DATE FIXED FOR DELIVERY (DAY OF EXAMINATION OF FIRST CALL) WILL HAVE A MAXIMUM NOTE OF 5.00, WHENEVER THEY HAVE A MINIMUM CORRECTION IN CLASS.
EXAMINATION 1: View UIC calendar
EXAMINATION 2: View UIC calendar
Bibliography and resources
Bibliografía básica:
- MORÁN CABRÉ, F.: Análisis matricial de estructuras en ordenador, Ed. Rueda.
- ARGUELLES ÁLVAREZ, R.:La estructura metálica hoy, Librería Técnica Bellisco. Tomo 1 vol. 1, y Tomo 1 vol. 2.
- TORROJA MIRET, Eduardo: Razón y ser de los tipos estructurales, Madrid, Instituto Eduardo Torroja de la Construcción y del Cemento, 1976.
- NAVÉS VIÑAS, F; LLORENS SULIVERA, M; Càlcul d'estructures, Publicacions Aula d'Arquitectura, Ed. UPC
- LÓPEZ ALMANSA, F; URBANO SALIDO, J; Càlcul d'estructures introducció, Publicacions Aula d'Arquitectura, Ed. UPC
Normativas de cumplimiento obligado:
- Código Técnico de la edificación:
- DB-SE Seguridad estructural
- DB-SE AE Acciones en la edificación
- DB-SE A Acero
- DB-SE M Madera
- Código Estructural 2021 (since 10 November 2021)
Otras normativas:
- Eurocode 1: Actions on structures
- Eurocode 3: Design of steel structures
- Eurocode 5: Design of timber structures