| Abstract |
"The first edition of "Ductile Design of Steel Structures," written from 1995 to 1997 and published in 1998, arrived at a time when the structural design practice was undergoing important changes. Most significantly, the impact of the Northridge and Kobe earthquakes was still being felt in the engineering community, and substantial shifts in philosophy for the seismic design of steel structures were underway. This led to numerous and frequent changes to the relevant seismic design and detailing provisions for steel structures in many codes and design standards -all while the United States completed the process of unifying its three major regional model design codes into the International Building Code (first published in 2000, and eventually adopted by all states and most municipalities in the country), and while the American Institute of Steel Construction unified its Load and Resistance Factor Design and Allowable Stress Design requirements into a single Specifications. While these whirlwind changes made the first edition a timely document in 1998, it also progressively left it in need of an update sooner than expected. Even though the fundamental principles and structural behaviors emphasized throughout the 1st edition of this book remained valid, design principles and examples were anchored in specifications that had changed in a number of subtle ways over time (more so than typically the case from one code cycle to another). With publication of the AISC 2010 Seismic Provisions and of the 2009 CSA S16 Standard for the Design of Steel Structures, converging in content and design philosophy, and crystallizing the knowledge developed in the 15 years following publication of the 1st Edition of "Ductile Design of Steel Structures," a 2nd Edition of the book was most needed. Published in 2011, this 2nd edition substantially expanded the scope of the book by adding three entirely new Chapters, to respectively address Buckling Restrained Braced frames, Steel Plate Shear Walls, and other alternative systems and design strategies that have been the subject of a growing interest and proposed to achieve the objective of ductile design, such as hysteretic energy dissipating devices, bi-metallic friction, rocking, and self-centering systems. The 2nd edition also included a completely rewritten chapters on braced frames, an expanded chapter on moment resisting frames, and a greatly expanded Chapter 2 to include new information on steel's high temperature properties, strain rate effects, K-area fractures, strain aging, stress corrosion, fatigue and ductility of corroded shapes, yielding mechanism, new steel grades, low-cycle fatigue modeling, and more. Chapter 3 (on cross section properties) was revised to address bi-axial bending, introduce layer models (required for some non-linear analyses), and provide information on plastic strength of concrete-filled steel tube cross-sections. Chapter 4 (on plastic analysis) was expanded to introduce yield line analysis, which is important for calculation of connections' ultimate strength and resistance to out-of-plane loads (such as blast loads). Chapter 6 was expanded to address global versus local ductility demand and some other important code-related issues. To better link with Chapters 8 to 13 focused on earthquake engineering applications, Chapter 7 was entirely rewritten, focusing on the basic principles to relate seismic design forces and corresponding ductile demands in structures. Design examples for all the structural systems covered in the book were added at the end of their respective chapters, and self-study problems were provided in most chapters (these can be assigned to students by instructors using this book as a textbook). All of this effectively doubled the size of the book from the 1st to the 2nd Edition, to more than 900 pages"-- Provided by publisher. |
