Memorial University of Newfoundland

Faculty of Engineering and Applied Science

Engineering: 7704

Design of Steel Structures

Dr. Seshu M.R. Adluri

Office: EN 3044 (S.J. Carew Bldg.)

Contact: 12:00-2:00 Tuesday

Course Outline:

For the purpose of engineered designs, steel is the most prevalent engineered structural material in North America. It is essential for all civil engineers to understand the process by which such engineered designs are carried out and the basic principles underlying the designs. This course is primarily an introduction to steel design. It covers the concepts and detailed design of the most common elements in steel structures. The components include different types of axial and flexural members as well as some of the common types of steel joints. The emphasis is on understanding the significance of the steel design code and applying the code based procedures for element design. Some explanation of the underlying theory is also given to aid the understanding. The depth to which the theory is given is tailored based on student aptitude. While most of the course is about manual design, introduction to computer aided member design and code checking is also given whenever possible.

• Introduction: Review of Design Concepts, advantages of steel, Material Strength and Cross-sectional Properties, Standards and Products

• Design of Members and Connections

1. Tension Members –yielding, rupture, shear lag, design

2. Bolted Joints –failure modes, strength tables, limit strength, design for different configurations, shear and moment, etc.

3. Welded Joints -types, failure modes, shear and moment, strength tables

4. Compression Members – Eff. Length, Torsional-flexural buckling, built-up memb., local buckling

5. Compression member design

6. Flexural Members – Beams, failure modes, classification, lateral-torsional buckling, bracing

7. Beam design for shear and moment, deflections

8. Beam-Columns, different checks

9. Plate Girders

10. Composite Construction –composite beams, failure modes, design

• Serviceability: Introductions to Deflections as part of the topics on beams.

Expectations: The students taking this course must make use of the knowledge from previous courses in structural analysis and design. At the end of this course, the students are expected to clearly demonstrate a basic understanding of the underlying principles of structural steel element design, basic code based procedures, and their application to specific problems in element design. They must be ready to design common member types and joints in practical steel structures.

Assessment Procedure:

Class Assignments	10% Manual +5% Computer (computer assignment marks may be reassigned) (May include computer work and the use of special software such as SSTEEL, Spread Sheets, Maple/Mathcad. Unless otherwise specified, assignments are due one week from the date of giving. Marks may be reduced for late submission.)
Midterm Test	25% (June 15)
Final Examination	60%
	Note: In all the examinations, ‘Handbook’ is allowed except as specified. The handbook must not contain solved examples and detailed procedures written down (other than those already printed in the book).

Text Books:

1.	Kulak, G.L. and G.Y. Grondin. "Limit States of Structural Steel," Canadian Institute of Steel Construction, Willowdale, Ontario.
2.	Canadian Institute of Steel Construction. "Handbook of Steel Construction."

Additional (Optional) Reading:

*	Salmon, C.G., and J.E. Johnson, 2009. "Steel Structures," 5^th Ed., Prentice Hall
*	Additional references as cited in the text book and the handbook.

NOTE

Comprehensive examples will be discussed primarily during tutorials. During tutorials, the students may be required to solve the problems in class to gain practice. Tutorials and labs dealing with computer work are compulsory. Please note that prewritten solutions may or may not be available for the assignments. However, the tutorial immediately following the return of each marked assignment is allotted for discussing the relevant solutions. At that time, if the students ask for it, the problems can be discussed and may even be solved in class. If the students do not raise their need for discussion of the problems, the time will be spent on solving other problems. The same policy holds for midterm exams and quizzes, if any. The students are expected to solve the assignment problems by themselves in order to reinforce the class instruction. Please refer to copying policy of the University if there is any doubt. Help with the assignment problems can be sought during contact hours and/or tutorial time. Warning: If the students are unable to draw proper Free Body Diagrams, Bending Moment and Shear Force Diagrams, the relevant questions may be marked zero even if the rest of the solution is partly or wholly correct. The same applies for using and clearly stating the correct units in any given problem. If the student fails in this, the relevant questions may be marked as zero. SAMPLE EXAM 2008, 2009. 2010, 2011

Slide presentation files –

“Introduction” “tension members” “connections-a, connections-b”

“compression” “compression handout” “bending”

“beam-columns” “composite beams” “plate girders”

Solution to cubic equations

Beam diagrams (from wood council, but work for steel too)

Examples

Tension ex.1-old code, ex1-09code, ex.5-old code, ex5-09code

Welds ex.1, ex.2, ex.3&4

Bolt groups ex.1, ex.3&4 bolt groups EXCEL file

Beam-to-Column Connection ex.1 (old code), ex.1 (welds), ex.2

Prying ex.1, Prying action EXCEL file 1

Compression Ex. 1, ex. 2, ex. 3, ex.4-5, Built-up col. ex.1-3

Beams Ex.1~3, ex.4

Composite beams ex.1~2

Beam-columns Ex.1~2, ex. 3~4

Plate girders Ex.1~2, ex.3-part1, ex.3-part2

Computer Lab handouts

Manual Assignment:

Computer Assignment:

Some useful links:

http://www.cisc-icca.ca/content/home/home_student.aspx - Canadian Institute of Steel Construction

http://www.aisc.org/ - America Institute of Steel Construction

http://www.steel.org//AM/Template.cfm?Section=Home – American Iron and Steel Institute

http://www.boltcouncil.org/ - Research Council on Structural Connections

http://www.worldsteel.org/ - International Iron and Steel Institute

http://www.sdi.org/ - SDI - Steel Deck Institute

http://www.steeljoist.org/ - SJI - Steel Joist Institute

http://nisee.berkeley.edu/godden/ - Earthquake resistant structures

http://en.structurae.de/structures/index.cfm - Very large data base of structures (>10,000) and their pictures. Fabulous site with additional information. A bit overwhelming!

http://www.lincolnelectric.com/knowledge/articles/content/terms.asp Lincoln electric welding site –explains the basic terms, and over view

Legal stuff:

The MUN Faculty Association asked us to include the following in Legalese. J So there! J The lectures and displays (and all material) delivered or provided in this course, including any visual or audio recording thereof, are subject to copyright owned by the instructor for the course (Dr. Seshu Adluri). Other copyrights may also be applicable. It is prohibited to record or copy by any means, in any format, openly or surreptitiously, in whole or in part, in the absence of express written permission from the instructor, Dr. Seshu Adluri any of the lectures, materials provided or published in any form during or from the above course.