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Based on the concept of reducing seismic demand rather than increasing the earthquake resistance capacity of structures, seismic isolation is a surprisingly simple approach to earthquake protection. However, proper application of this technology within complex seismic design code requirements is both complicated and difficult.
Design of Seismic Isolated Structures provides complete, up-to-date coverage of seismic isolation, complete with a systematic development of concepts in theory and practical application supplemented by numerical examples. This book/CD-ROM set helps design professionals navigate and understand the ideas and procedures involved in the analysis, design, and development of specifications for seismic isolated structures. It also provides a framework for satisfying code requirements while retaining the favorable cost-effective and damage control aspects of this new technology. An indispensable resource for practicing and aspiring engineers and architects, Design of Seismic Isolated Structures includes:
- Isolation system components.
- Complete coverage of code provisions for seismic isolation.
- Mechanical characteristics and modeling of isolators.
- Buckling and stability of elastomeric isolators.
- Examples of seismic isolation designs.
- Specifications for the design, manufacture, and testing of isolation devices.
About the CD-ROM
The accompanying CD-ROM contains ISOSEL isolation software: ASP2000 Nonlinear program (student version); and selected suites of earthquake ground motions.
Excerpt from the Preface
Seismic isolation is a simple structural design approach to mitigate or reduce earthquake damage potential. Seismic isolated structures are currently difficult to analyze, design, and implement, however, due to complex code requirements. This book serves as a guide to help the reader navigate and understand the concepts and procedures involved in analysis, design and development of specifications for seismic isolated structures. The book is intended as a reference for practicing engineers and architects as well as a text for graduate-level courses on seismic isolation.
It provides a complete and up-to-date coverage of the subject and numerical examples and systematic development of the concepts in theory and practical application. The book is partially developed from lecture notes generated over the period of two decades of teaching graduate classes at the University of California at Berkeley. The material is complemented by practical insights obtained from many years of involvement in analysis, design, and review of major seismic isolated projects in the United States.
In response to the damage generated by recent earthquakes in densely populated areas, seismic design codes for the design of buildings, bridges, and industrial facilities changed with the intention of leading to better seismic performance. This process has been repeated in response to all recent damaging earthquakes, such as the 1989 Loma Prieta, 1994 Northridge, and 1995 Kobe events. In addition, damaging earthquakes in Mexico, Australia, Armenia, Iran, and India have all caused changes in the seismic design codes and procedures. Consequently, all structural engineers designing earthquake-resistant structures have had to contend with increasingly complex code requirements.
Seismic isolation is an approach to earthquake-resistant design that is based on the concept of reducing the seismic demand rather than increasing the earthquake resistance capacity of the structure. Proper application of this technology leads to better performing structures that will remain essentially elastic during large earthquakes. Surprisingly, the basics of this approach are rather simple.
Unfortunately, however, the seismic design code provisions for design of seismic isolated structures are complicated and difficult for the engineer to apply. This textbook is intended to clarify for the practicing engineer, as well as engineering student, the basic concepts of seismic isolation and the fundamental principles of seismic isolation design. It provides a framework for the design professional to satisfy the code requirements while retaining the favorable, cost-effective, damage control aspects of this new technology. It is the authors' contention that, once the intimidating barriers of code application are bypassed, the use of seismic isolation will become a routine procedure for many types of structures.
Contents
Development of Seismic Isolation Worldwide. Theoretical Basis of Seismic Isolation. Isolation System Components. Code Provisions for Seismic Isolation. Mechanical Characteristics and Modeling of Isolators. Buckling and Stability of Elastomeric Isolators. Design Earthquake Ground Motions. Design Examples. Computer Applications. Specifications for Design, Manufacturing, and Testing of Isolation Devices. Appendix. References. Index.
About the Authors
Farzad Naeim, PhD, SE, is Director of Research and Development at John A. Martin Associates, Inc. in Los Angeles, California.
James M Kelly, PhD, is Professor in the Graduate School of the University of California at Berkeley. |
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