Steel Design, Fifth Edition covers the fundamentals of structural steel design for buildings.
This book is intended for junior-and senior-level engineering students, although
some of the later chapters can be used in a combination undergraduate/graduate
course. Practicing civil engineers who need a review of current practice and the
current AISC Specification and Manual will find the book useful as a reference.
Students should have a background in mechanics of materials and analysis of
statically determinate structures. Knowledge of statically indeterminate structural
analysis is not a prerequisite for the use of this book.
Structural design is a complex endeavor, involving the synthesis of many
processes. This book does not cover the integrated design of buildings, but presents
some of the “building blocks” for structural steel design. We focus on the analysis and
design of individual members and connections, rather than complete structures.
Prior to the 2005 Specification and Manual of the American Institute of Steel
Construction, load and resistance factor design (LRFD) was covered by the 1999
AISC Specification and LRFD Manual of Steel Construction, Third Edition. Allowable
stress design (ASD) was covered by the 1978 AISC Specification and Manual
of Steel Construction, Ninth Edition. In 2005, the two approaches were unified in a
single specification and a single manual, the thirteenth edition of the Steel Construction
Manual. In addition, changes were made to many provisions of the specification,
both in form and substance. The unified approach continues with the 2010 Specification
and the 14th edition of the Steel Construction Manual. Both documents have
been revised to reflect current research and practice, but the format remains the same.
Both LRFD and ASD are covered in this textbook, but the emphasis is on LRFD.
In most examples, both LRFD and ASD solutions are given. In those examples, the
LRFD solution is given first. In some cases, the ASD solution is abbreviated but complete
and independent of the LRFD solution. This usually involves some duplication
but is necessary if a reader is interested in only the ASD solution. In some ASD
solutions where there would be a lengthy duplication, the reader is referred to the
LRFD solution for that portion. In some of the examples, particularly in the later
chapters, only an LRFD solution is given. This is in keeping with the approach
favored by some instructors; that is, cover both approaches early in the course, then
emphasize LRFD as the course progresses. The differences in the two approaches are
mostly conceptual, and there is very little difference in the computations. All notation in
Steel Design is consistent with that in the Manual, and AISC equation numbers are used
along with sequential numbering of other equations according to the textbook chapter.
U.S. customary units are used throughout, with no introduction of SI units.
Although the AISC Specification uses a dual system of units, the steel construction
industry is still in a period of transition.
An attempt has been made to strike a balance between the theoretical and the
practical. The theory that is presented is within the grasp of undergraduate students,
but advanced topics such as plate buckling have been excluded. Analysis and design
are initially presented without the aid of tables and graphs from the Manual, followed
by the introduction of these design aids. These aids are not reproduced in this book,
because one objective is to encourage familiarity with the Manual. It is therefore
essential that students have a copy of the 14th edition of the Steel Construction
Manual.
All content in this edition has been updated to conform to the newest AISC
Specification and Steel Construction Manual. This includes the following:
• The new provisions of the Specification and Manual are covered in detail.
• A discussion of frame analysis methods has been added. This reflects the
increased emphasis on the direct analysis method in the Specification.
• Material on the moment amplification method has been expanded. Additional
material on the use of the beam-column tables in the Manual is included.
• New material on the shear strength of bolts incorporates the updated strength
values given in the Specification. Slip-critical bolt strength has also been
modified.
• New material explaining the bolt strength tables has been added. These tables
are used in selected examples.
• The example on ultimate strength analysis of eccentric bolted shear connections
has been redone, tying it more closely to the tables in the Manual. The
method used to calculate bolt tension when the load is not in the plane of the
connection has been modified to be consistent with the approach used in the
Manual.
• There is a new emphasis on the use of the lower-bound moment of inertia in
computing deflections.
• The material on composite columns has been revised.
• The new approach to proportioning intermediate plate girder stiffeners is
included.
• A majority of the problems have been revised.
In keeping with the objective of providing a basic textbook, a large number of
assigned problems are given at the end of each chapter. Answers to selected problems
are given at the back of the book, and an instructor’s manual with solutions, PowerPoint
slides of all figures and tables, and Lecture Builder slides of all equations and Example
Problems in the book are available through the book website. To access additional
course materials, please visit www.cengagebrain.com. At the cengagebrain.com home
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page, search for the ISBN of your title (from the back cover of your book) using the
search box at the top of the page. This will take you to the product page where these
resources can be found.
Many persons contributed to the production of this revision. To the following
reviewers, I give my thanks for their thoughtful and constructive comments: Leonard
D. Albano, Worcester Polytechnic Institute; Joseph Crocker, Colorado School of
Mines; Mike Folse, University of New Orleans; Robert Hamilton, Boise State University;
Jeffrey A. Laman, the Pennsylvania State University; Tyler Ley, Oklahoma
State University; Jean-Paul Pinelli, Florida Institute of Technology; Jay Shen, Illinois
Institute of Technology; Bozidar Stojadinovic, University of California, Berkeley;
and Chia-Ming Vang, University of California, San Diego.
I would also like to express my appreciation to Chris Shortt, Publisher, Global
Engineering at Cengage Learning; Randall Adams, Senior Acquisitions Editor; Hilda
Gowans, Senior Developmental Editor, who has been especially helpful and supportive,
and Rose Kernan of RPK Editorial Services. In addition, the American
Institute of Steel Construction has been very helpful in providing updates on the
AISC Specification and Manual. Thanks also to Adam Belew and Ali Hajihashemi
for their assistance in the preparation of the solutions manual. Finally, I want to thank
my wife, Angela, for her valuable suggestions, patience, and support during the production
of the five editions of this book.
I have attempted to check everything for errors, but it is inevitable that some will
remain. I would appreciate learning of any errors that you may find. I can be contacted
at wsegui@memphis.edu.
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