Seismic Design of Steel Structures

Module aims

  • To introduce the students to the fundamental concepts and principles required for the seismic design of steel structures.
  • To enable the student to develop an understanding of the seismic behaviour of steel members, connections and systems under typical earthquake loading conditions. This knowledge can then be applied in practical earthquake resistant design of common forms of steel structures according to modern codified regulations, with particular emphasis on the European seismic design code, Eurocode 8.

Learning outcomes

On successfully completing this course unit, students will be able to:

  •  Determine seismic actions on typical steel structures using simplified methods derived from fundamental structural dynamics concepts.
  • Identify suitable lateral resisting systems which are capable of providing effective earthquake resistance for steel building structures.
  • Understand the response characteristics of typical steel members and connections under cyclic and earthquake loads.
  • Appreciate the typical damage patterns that are observed in steel structures on the basis of experience from previous seismic events.
  • Understand the concepts of capacity design and failure mode control and their deployment in modern codes of practice including Eurocode 8.
  • Understand the main behavioural features of moment and braced steel frames under seismic loading conditions.
  • Apply the main design rules and detailing requirements for moment resisting and braced steel systems according to the provisions of Eurocode 8.

Module syllabus

  • Observations from post-earthquake field observations with emphasis on common damage patterns in steel structures.
  • Brief revision of structural dynamics principles for single and multi-degree of freedom systems for the case of applied base excitations.
  • Structural analysis methods for the seismic response assessment of building structures including review of fundamental structural dynamics concepts.
  • Overview of the principles of performance-based seismic design, failure mode control and capacity design.
  • Introduction to the design of earthquake-resistant building structures in relation to the characteristics of different structural forms in steel structures.
  • Assessment of the seismic behaviour of steel materials, members and connections to cyclic and seismic loading conditions.
  • Overview of codified procedures for the seismic design of steel structures with emphasis on the provisions of Eurocode 8.
  • Design of moment resisting steel frames according to the provisions of the European seismic code, Eurocode 8.
  • Design of concentrically braced steel frames according to the provisions of the European seismic code, Eurocode 8.
  • Design of eccentrically braced steel frames according to the provisions of the European seismic code, Eurocode 8.

No.

Topic

Staff

01

Introduction

AE

02

General design considerations

AE

03

Seismic analysis procedures

AE

04

Seismic loading principles

AE

05

Behaviour of steel components

AE

06

Moment frame systems

AE

07

Concentrically braced frames

AE

08

Eccentrically braced frames

AE

09

Design project

AE

10

Design project

AE

Teaching methods

The module involves a series of lectures and tutorials, as well as design examples and exercises covering the practical aspects of the subject.

Assessments

Assessment will be via coursework and written examination.

Reading list

Supplementary

Module leaders

Professor Ahmed Elghazouli