501063 - THEORY AND PLANNING OF STEEL CONSTRUCTIONS

The course is organised into five main modules, each focusing on a key aspect of the design and verification of steel structures: Module 1 – Introduction to Steel, Structural Systems, and Analysis Methods (Lectures 1 and 2) This introductory module explores the history of steel, the international and national markets, and the main economic considerations related to the use of steel in construction. An overview of the steel production process and the characteristics of steel products is provided. The module discusses the reasons why steel is widely used in construction, considering structural, aesthetic, and practical aspects. The main types of loads to be considered in structural design are introduced, with particular attention to those that are most critical for steel structures. Finally, various steel structural systems and analysis methods are presented, including both elastic and plastic analyses, at the cross-sectional and global structural levels. Module 2 – Strength Verification of Structural Members (Lectures 3 and 4) This module focuses on the theory and design of steel structural elements subjected to different types of loading, either individual or combined. Particular attention is given to tension members, compression members, bending members, and combined bending and axial force members, illustrating the relevant verification criteria in accordance with current design codes. Module 3 – Stability and Buckling Resistance (Lectures 5 and 6) Stability is a critical issue in steel structures. This module addresses the main forms of instability that may compromise the load-bearing capacity of structural members: flexural buckling, flexural/lateral-torsional buckling, local buckling, and distortional buckling. Verification methods and design techniques to prevent or control instability phenomena are introduced. Module 4 – Connections and Joints (Lectures 7, 8, and 9) The fourth module is devoted to the study of steel connections, both bolted and welded. Theoretical and practical aspects of connection design are addressed, along with common detailing solutions and their influence on the global structural behaviour. Special attention is given to the role of connections in the seismic response of steel frames. Module 5 – Fundamentals of Seismic Design (Lectures 10 and 11) The final part of the course introduces the basic principles of seismic design for steel structures. The main types of seismic-resistant systems are presented, including Moment Resisting Frames (MRFs), Concentrically Braced Frames (CBFs), and Eccentrically Braced Frames (EBFs), with an overview of their performance characteristics and design criteria.