Seismic Isolation for Earthquake-resistant Structures

Inbunden, Engelska, 2000

Del i serien Advances in Earthquake Engineering

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Beskrivning

Ground motion due to earthquake excitation often induces disastrous disturbances that severely damage structures and their contents. Conventional earthquake-resistant design focuses on the strengthening of structures to avoid collapse, while little attention is paid to the prevention of damage as it is almost impossible to construct completely "earthquake proof" structures at reasonable cost. This state-of-the-art volume explores seismic isolation as an alternative and performance-based design approach to minimise earthquake induced loads and resulting damage in low to medium-rise buildings. A discussion of the characteristics, advantages and limitations of seismic isolation is followed by a demonstration of its capability to decouple a structure from the damaging effects of ground acceleration. Describes currently used seismic isolation systems in detail. Evaluates the performance of seismically isolated structures and provides examples of their response under earthquake action. Proposes a preliminary design methodology for seismically isolated structures. Accessible to both students and practising structural engineers who need to familiarise themselves with this approach.

Produktinformation

Utgivningsdatum:2000-12-06
Mått:155 x 230 x 14 mm
Vikt:490 g
Format:Inbunden
Språk:Engelska
Serie:Advances in Earthquake Engineering
Antal sidor:224
Förlag:WIT Press
ISBN:9781853128035

Utforska kategorier

Geovetenskap inom Naturvetenskap och teknik
Byggnadsteknik inom Naturvetenskap och teknik
Miljöteknik inom Naturvetenskap och teknik

Recensioner i media

"Basic theories and knowledge on base isolation are clearly presented almost in layman's terms...approachable to undergraduate students and junior engineers...a useful reference in practical design of base-isolated structures." Applied Mechanics Reviews

Innehållsförteckning

Introduction - Motivation; Outline. Conventional Earthquake Resistance Design and its Limitations - Objectives and Design Philosophy; Disadvantages; Need for a Different Design Approach. Seismic Isolation: An Alternative Earthquake Resistance Design Approach - The Concept; Basic Components; Advantages and Applications of Seismic Isolation; Comparison of a Fixed Supported and a Seismically Isolated Structure; Constraints in the Implementation; Limitations; Factors Which Enable the Use of Seismic Isolation; Economics of Seismic Isolation; Reasons for the Lack of Extensive Use of Seismic Isolation. Seismic Isolation Devices - Types of Seismic Isolation Systems; Sliding Isolation Systems; Elastomeric Isolation Systems; Elastomeric Bearings: Mechanical and Physical Characteristics. Applications of Seismic Isolation - Introduction; Seismic Isolation in the United States; Seismic Isolation in Japan; Seismic Isolation in New Zealand; Seismic Isolation in Italy; Observed Performance of Seismically Isolated Structures. Practical Considerations for Seismic Isolation - Seismic Isolation of Buildings; Seismic Isolation of Bridges; Maintenance and Management of the Isolation System; Code Requirements. Structural Modeling and Analysis of Seismically Isolated Structures - Modeling of Response; Natural Modes of Vibration; Linear Systems; Bilinear Systems; Comparative Study of a Linearly and a Bilinearly Isolated Structure; Linearization of Bilinear Behavior; Effect of the Degree of Non-Linearity; Effect of Superstructure Stiffness; Modeling of Seismically Isolated Bridge Structures; Ductility of Seismically Isolated Structures. A Preliminary Design Methodology - Introduction; A Feasibility Study for the Use of Seismic Isolation; Determination of Peak Ground Acceleration; Design of the Superstructure; Selection of a Suitable Isolation System; Preliminary Design of the Isolation System; Issues of Concern at the Final Analysis Stage. The Future of Seismic Isolation - Summary; Future of Seismic Isolation. Appendix A: Linear Elastic Systems - Single Degree of Freedom Systems; Multi Degree of Freedom Systems. Appendix B: Bilinear Systems - Single Degree of Freedom Systems; Multi Degree of Freedom Systems.