This book summarizes the recent progress in practical analysis for semi-rigid frame design in North America. This encompasses codes, databases, modeling, classification, analysis/design, and design tables and aids. Practical design methods include LRFD procedures, approximate procedures, computer-based procedures and the optimization process. The book can be used as a supplementary steel design textbook for graduate students, as a training book for a short course in steel design for practicing engineers, and as a reference book for consulting firms designing building structures.

A practical and accessible introduction to the implementation of partially restrained connections in engineering practice.

Semi-rigid steel frames are revolutionizing structural design. This book is a practical professional reference, covering analytical methods for the evaluation of connection flexibility and its influence on the stability of the entire framework. The methods range from a simplified member-by-member design approach to a more sophisticated computer-based advanced analysis and design approach.

Sponsored by the Technical Committee on Structural Design of the Technical Administrative Committee on Analysis and Computation of the Technical Activities Division of the Structural Engineering Institute of ASCE. This report documents the dramatic new developments in the field of structural optimization over the last two decades. Changes in both computational techniques and applications can be seen by developments in computational methods and solution algorithms, the role of optimization during the various stages of structural design, and the stochastic nature of design in relation to structural optimization. Topics include: Ømethods for discrete variable structural optimization; Ødecomposition methods in structural optimization; Østate of the art on the use of genetic algorithms in design of steel structures; Øconceptual design optimization of engineering structures; Øtopology and geometry optimization of trusses and frames; Øevolutionary structural optimization; Ødesign and optimization of semi-rigid framed structures; Øoptimized performance-based design for buildings; Ømulti-objective optimum design of seismic-resistant structures; and Øreliability- and cost-oriented optimal bridge maintenance planning. The book concludes with an extensive bibliography of journal papers on structural optimization published between 1987 and 1999.

LRFD Steel Design Using Advanced Analysis uses practical advanced analysis to produce almost identical member sizes to those of the Load and Resistance Factor Design (LRFD) method. The main advantage of the advanced analysis method is that tedious and sometimes confusing separate member capacity checks encompassed by the AISC-LRFD specification equations are not necessary. Advanced analysis can sufficiently capture the limit state strength and stability of a structural system and its individual member directly. While the use of elastic analysis is still the norm in engineering practice, a new generation of codes is expected to adopt the advanced analysis methodology in the near future, leading to significant savings in design effort. In recent years, the continued rapid development in computer hardware and software, coupled with an increased understanding of structural behavior, has made it feasible to adopt the advanced analysis techniques for design office use. Drs. Chen and Kim, both experienced and respected engineers, contribute their expertise to this text, which is intended for both the graduate student and the practicing engineer. Previous knowledge of the subject is not necessary, but familiarity with methods of elastic analysis and conventional LRFD design is expected. The advanced analysis in the book is presented in a practical and simple manner, with attention directed to both analysis and design, emphasizing the direct use of the methods in engineering practice. This is a great introduction to an exciting new trend in structural engineering!

This book is a personal anthology of the author's utmost academic works and accomplishments with his former students and colleagues intended as an enduring record for the engineering community for many years to come.The author's forty-year professional career and academic life journey is first briefly sketched in Chapter 1 and more details are elaborated in three chapters that follow: Chapter 2: The first ten years at Lehigh — beginning to show; Chapter 3: Twenty=three years at Purdue — the highly productive years; and Chapter 4: seven years at UH — the pursuit of excellence. The author's specific academic contributions are documented in the following three chapters: Chapter 5: 23 academic bulletins are selected to highlight his 10 major research areas; Chapter 6: 23 Academic masterpiece books are listed along with their respective peer review comments; and Chapter 7: academic publications include journal articles, conference proceedings and symposiums, and lectures and keynotes. The book ends with the listing of all the author's 55 doctoral students' dissertation titles in Chapter 8.In 1975 at Lehigh, the author published a milestone treatise on Limit Analysis and Soil Plasticity. In 1982 at Purdue, he published another pioneering work on Plasticity in Reinforced Concrete.In September 1999, the author was recruited by UH to take the Deanship of the College of Engineering to accomplish the noble mission: to build the College to become one of the top 50 engineering schools by strengthening the faculty, improving the facilities, and increasing the enrollment. Over his seven years at UH, a lot of progress was made in all these three areas — the research program expanded, facilities improved, and enrollment increased.

Steel frames are used in many commercial high-rise buildings, as well as industrial structures, such as ore mines and oilrigs. Enabling construction of ever lighter and safer structures, steel frames have become an important topic for engineers. This book, split into two parts covering advanced analysis and advanced design of steel frames, guides the reader from a broad array of frame elements through to advanced design methods such as deterministic, reliability, and system reliability design approaches. This book connects reliability evaluation of structural systems to advanced analysis of steel frames, and ensures that the steel frame design described is founded on system reliability. Important features of the this book include: fundamental equations governing the elastic and elasto-plastic equilibrium of beam, sheer-beam, column, joint-panel, and brace elements for steel frames; analysis of elastic buckling, elasto-plastic capacity and earthquake-excited behaviour of steel frames; background knowledge of more precise analysis and safer design of steel frames against gravity and wind, as well as key discussions on seismic analysis. theoretical treatments, followed by numerous examples and applications; a review of the evolution of structural design approaches, and reliability-based advanced analysis, followed by the methods and procedures for how to establish practical design formula. Advanced Design and Analysis of Steel Frames provides students, researchers, and engineers with an integrated examination of this core civil and structural engineering topic. The logical treatment of both advanced analysis followed by advanced design makes this an invaluable reference tool, comprising of reviews, methods, procedures, examples, and applications of steel frames in one complete volume.

This book is devoted to the discussion and studies of simple and efficient numerical procedures for large deflection and elasto-plastic analysis of steel frames under static and dynamic loading. In chapter 1, the basic fundamental behaviour and philosophy for design of structural steel is discussed, emphasising different modes of buckling and the inter-relationship between different types of analysis. In addition to this, different levels of refinement for non-linear analysis are described. An introduction is also given to the well-known P-&dgr; and P-&Dgr; effects. Chapter 2 presents the basic matrix method of analysis and gives several examples of linear analysis of semi-rigid pointed frames. It is evident from this that one must have a good understanding of first-order linear analysis before handling a second-order non-linear analysis. In chapter 3, the linearized bifurcation and second-order large deflection are compared and the detailed procedure for a second-order analysis based on the Newton-Raphson scheme is described. Chapter 4 introduces various solution schemes for tracing of post-buckling equilibrium paths and the Minimum Residual Displacement control method with arc-length load step control is employed for the post-buckling analysis of two and three dimensional structures. Chapter 5 addresses the non-linear behaviour and modelling of semi-rigid connections while several numerical functions for description of moment versus rotation curves of typical connection types are introduced. The scope of the work in chapter 6 covers semi-rigid connections and material yielding to the static analysis of steel frames. Chapter 7 studies the cyclic response of steel frames with semi-rigid joints and elastic material characteristics. In the last chapter the combined effects of semi-rigid connections and plastic hinges on steel frames under time-dependent loads are studied using a simple springs-in-series model. For computational effectiveness and efficiency, the concentrated plastic hinge concept is used throughout these studies.

The development of the limit state approach to design in recent years has focused particular attention on two basic requirements: accurate information regarding the behavior of structures throughout the entire range of loading up to the ultimate strength, and simple practical procedures to enable engineers to assess this behavior. This book satisfies these requirements by providing practical analysis methods for the design of steel frames. The book contains a wide range of second-order analyses: from elastic to inelastic, rigid to semi-rigid connections, and simple plastic hinge method to sophisticated plastic-zone method. Computer programs for each analysis are provided in the form of a floppy disk for easy implementation. Sample problems are described and user's manuals are well documented for each program developed in the book.

Stability Design of Steel Frames provides a summary of the behavior, analysis and design of structural steel members and frames with flexibly-jointed connections. The book presents the theory and design of structural stability and includes extensions of computer-based analyses for individual members in space with imperfections. It also shows how connection flexibility influences the behavior and design of steel frames and how designers must consider this in a limit-state analysis and design procedure. The clearly written text and extensive bibliography make this a practical book for advanced students, researchers and professionals in civil and structural engineering, as well as a useful supplement to traditional books on the theory and design of structural stability.