# CIVIL DRAWING

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- Versione italiana
- Academic year
- 2022/2023
- Teacher
- ARDIA MARZETTI
- Credits
- 6
- Didactic period
- Primo Semestre
- SSD
- ICAR/17

#### Training objectives

- This course acquaints students with the methods and procedures of graphical representation in technical drawing.

The aim is to reach a fluency in the language of drawing by teaching students how to gain a geometric and three-dimensional vision of civil engineering projects.

Course topics will be:

- History of graphic representation, methods, goals and drawing supplies.

- Live drawing “free hand”, visual perception of a building.

- The representation of fundamental geometric components; conditions of perpendicularity, parallelism and tangents.

- Construction of basic geometric figures.

- Symbolism, representations in the most common scales and references for UNI regulations.

- Orthogonal projections

- Arches: representation of the fundamental types.

- Vaults: representation of the fundamental types.

- Pitched roofs and their representation

- Stairs: types and their representation

- Survey drawing

- Project drawing

- Perspective

- Axonometric projection representation

- Representation of construction details

#### Prerequisites

- None
#### Course programme

- The course forecasts 60 hours of teaching divided into frontal lectures and graphical tutorial exercises done in the classroom.

History of graphic design, methods, goals and drawing supplies (2 and a half hours).

The evolution of drawing, from ancient civilizations to the Renaissance up to modern day.

Live “free hand” drawing, visual perception of a building (2 and a half hours).

Live drawing consists in the introduction of free hand drawing. It teaches students to actively and critically observe reality to convey it and to understand the primary and secondary shapes and their relationships. Introduction to Classical Order and their proportions.

The representation of fundamental geometric components (2 and a half hours).

An introduction to geometric drawing through the representation of the main characteristics of perpendicularity, parallelism and tangents.

Construction of basic geometric figures (2 and a half hours).

Representation of simple geometric figures and recognizing them in complex images.

Symbolism, representations in the most common scales and a brief mention of UNI regulations (2 and a half hours).

Graphic rules: UNI regulations for graphic drawing. The authorities, national and international levels of regulation (UNI, CEN, ISO). Unified writing and symbols.

Orthogonal projections (7 and a half hours)

Introduction to descriptive geometry and the G. Monge method for double projection. Representation of plans and elevation and pertinent graphic applications.

Arches: representation of the fundamental types (5 hours.

The geometry of arches, their evolution and influence through history.

Vaults: representation of the fundamental types (5 hours).

The classification of vault types, the geometry of the fundamental models, their evolution and influence through history.

Pitched roofs and their representation (5 hours)

Pitched roofing and their geometry. Representation of roofing following the theory of bisecting lines in various layout conformations.

Stairs: types and their representation (7 and a half hours).

Vertical systems; stairs. The components, geometric classifications, sizing and representation.

Survey drawing (5 hours).

Brief history of survey techniques and methods. A history of graphic representation for surveying, examples and rules.

Project drawing (5 hours).

Brief history, examples, graphic rules and regulations. Project drawings.

Perspective (5 hours).

The discovery of the rules of perspective and their influence through history. Geometric representation of the perspective of a building.

Axonometric projection (2 and a half hours).

Brief history, the most common types, military and cavalier axonometric projection and their applications.

Representation of construction details (2 and a half hours).

Illustration of an example of a building and its various components, examples and rules of representation of construction details. #### Didactic methods

- The course is organized as follows:

- frontal lectures on the course topics;

- graphical tutorial exercises done in the classroom with the student’s own basic supplies. #### Learning assessment procedures

- The aim of the exam is to verify at which level the learning objectives previously described have been acquired.

The examination is divided in 2 sections that will take place on the same day.

- Verification of the graphic elaborations during lessons, dated and viewed by the teacher.

- At least three questions for the exam on the knowledge of the related topics with corresponding free hand graphic illustrations.

The final mark is the sum of the 2 marks.

To pass the exam it is necessary to obtain at least 18 points out of 31.

If one of the 2 tests is not passed or if the final mark is below 18, it is necessary to repeat all the exam sections. #### Reference texts

- Teacher’s handouts

Specific topics can be further developed in the following texts.

M. Docci, D. Maestri, M. Gaiani, Scienza del disegno, CittàStudi, Torino, 2011.

M. Docci, D. Maestri, Manuale di rilevamento architettonico e urbano. Editori Laterza, 2009.

F. Camerota, Nel segno di Masaccio. L’invenzione della prospettiva. Giunti, 2002.

L. Caleca, Architettura Tecnica. Dario Flaccovio Editore, IV edizione, 2013.

UNI, Disegno Tecnico. Linguaggio e metodi di rappresentazione in edilizia. 2006.

UNI, Disegno Tecnico. Schemi grafici e documentazione tecnica per l'edilizia. 2006