Design of Steel Structures to AISC




Design of Steel Structures to AISC   ECIV 4318

Second Semester 2016/2017

Instructor: Dr Mamoun Alqedra,

(download course outlines-2017 )

Course Scope: This course teaches the engineering thought process through the design of steel structures. The course uses fundamentals of statics, mechanics of materials, and structural analysis and applies them to the design of structural members, with emphasis on satisfying real-world needs. Topics include an introduction to the design of structural systems, design of steel tension and compression members, design of beams and beam-columns, and an introduction to connection design. All design is performed in accordance with codes and specifications used in current engineering practice. A comprehensive design problem requires development of a design methodology, consideration of alternative solutions, and design of an optimal steel structure to meet stated functional requirements.

Course Goals: This course is designed to enable civil engineering students to apply classic structural behavior principles, along with the AISC LRFD Specification, to the proper analysis and design of steel structures. Students are required to demonstrate proficiency in the analysis and design of tension members, tension connections, (both welded and bolted), compression members, flexural members, beam-columns and the complex structures comprised of such members. A concurrent and explicit goal is to develop the ability to take an engineering approach to problem solving, i.e., to define the problem, formulate and evaluate alternatives, and make rational, reasonable and economical decisions. The use of several PC- based software packages is emphasized throughout the course. Students are exposed to elements of the structural steel industry through a construction site visit and by a guest lecture.

Text Book and References

  • Sequi, W. T. (2013). " LRFD Steel Design", Fifth Edition, Cengage Learning.
  • AISC (2012). Manual of Steel Construction – Load and Resistance Factor Design, 13th and 14th Editions, American Institute of Steel Construction, Chicago, IL.
  • Salmon, C.G. and Johnson, J.E. (1996). Steel Structures: Design and Behavior, Emphasizing Load and Resistance Factor Design, 4th Edition, Harper College Publishers, New York, NY.
  • Jack C. McCormac, James K. Nelson. (2002), Structural Steel Design LRFD Method, 3rd Edition, Prentice Hall.


1. Introduction to structural steel design (lecture notes)

Basic Structural Shapes
Steel structures: Examples
Structural Steel Cross Sections
Structural Steel Materials
Building Codes and Specifications
Design philosophies
Probabilistic Basis for LRFD
Determining load and resistance factors
AISC load and resistance factors

3. Design of Tension Members (lecture notes)

Typical tension members
Design criteria
Net and gross areas
Effective area
Staggered bolted connections
Block shear
Slenderness requirements
How to design a tension member
Threaded rods, Cables and pin connected members

4. Design of Simple Connections

(types of steel connections-1 )

steel connections in 3D

Types of connections
Bolted shear connections
Spacing and edge distance requirements
High strength bolts (Bearing type connections)
High strength bolts (Slip critical connections)
Welded connections
Fillet welded connections length and size requirements

6. Design of Compression Members (lecture notes)

Buckling of and buckling failure modes
Effective length
Design of compression members
Local buckling
Buckling factor for rigid frames
Torsional and flexural-torsional buckling
Design of single angle compression member
Design of base plates

7. Design of Flexural Members

Classification of sections
Moment curvature
Flexural stability and lateral torsional buckling
Compact and non-compact section
Shear strength of bending elements
Serviceability requirements
Design of beams
Design of beam bearing plates

8. Beam-Column Design

Beam columns
Moment amplification analysis
Compact sections for beam columns
Braced and unbraced frames
Analysis/design of braced and un-braced frames

Teaching Methods

The topics in the course will be presented using the overhead and LCD projector and the traditional lecture format. Students are encouraged to attend lectures to ensure that they appreciate what material is considered to be most important. Groups of two or three students will be given one or two design projects to practice the principles of the basic design of steel structures taken in the undergraduate level.

Assessment of Learning

The final grade will be assigned as follows:
Assignments:          15 %

Term Test:              30 %
Final Examination:   55 %

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