Seismic Design and Retrofit of Bridges

Because of their structural simplicity, bridges tend to beparticularly vulnerable to damage and even collapse when subjectedto earthquakes or other forms of seismic activity. Recentearthquakes, such as the ones in Kobe, Japan, and Oakland,California, have led to a heightened awareness of seismic risk andhave revolutionized bridge design and retrofit philosophies.

In Seismic Design and Retrofit of Bridges, three of the world's topauthorities on the subject have collaborated to produce the mostexhaustive reference on seismic bridge design currently available.Following a detailed examination of the seismic effects of actualearthquakes on local area bridges, the authors demonstrate designstrategies that will make these and similar structures optimallyresistant to the damaging effects of future seismicdisturbances.

Relying heavily on worldwide research associated with recentquakes, Seismic Design and Retrofit of Bridges begins with anin-depth treatment of seismic design philosophy as it applies tobridges. The authors then describe the various geotechnicalconsiderations specific to bridge design, such as soil-structureinteraction and traveling wave effects. Subsequent chapters coverconceptual and actual design of various bridge superstructures, andmodeling and analysis of these structures.

As the basis for their design strategies, the authors' focus is onthe widely accepted capacity design approach, in which particularlyvulnerable locations of potentially inelastic flexural deformationare identified and strengthened to accommodate a greater degree ofstress. The text illustrates how accurate application of thecapacity design philosophy to the design of new bridges results instructures that can be expected to survive most earthquakes withonly minor, repairable damage.

Because the majority of today's bridges were built before thecapacity design approach was understood, the authors also devoteseveral chapters to the seismic assessment of existing bridges,with the aim of designing and implementing retrofit measures toprotect them against the damaging effects of future earthquakes.These retrofitting techniques, though not considered appropriate inthe design of new bridges, are given considerable emphasis, sincethey currently offer the best solution for the preservation ofthese vital and often historically valued thoroughfares.

Practical and applications-oriented, Seismic Design and Retrofit ofBridges is enhanced with over 300 photos and line drawings toillustrate key concepts and detailed design procedures. As the onlytext currently available on the vital topic of seismic bridgedesign, it provides an indispensable reference for civil,structural, and geotechnical engineers, as well as students inrelated engineering courses.

A state-of-the-art text on earthquake-proof design and retrofit ofbridges

Seismic Design and Retrofit of Bridges fills the urgent need for acomprehensive and up-to-date text on seismic-ally resistant bridgedesign. The authors, all recognized leaders in the field,systematically cover all aspects of bridge design related toseismic resistance for both new and existing bridges.
* A complete overview of current design philosophy for bridges,with related seismic and geotechnical considerations
* Coverage of conceptual design constraints and their relationshipto current design alternatives
* Modeling and analysis of bridge structures
* An exhaustive look at common building materials and theirresponse to seismic activity
* A hands-on approach to the capacity design process
* Use of isolation and dissipation devices in bridge design
* Important coverage of seismic assessment and retrofit design ofexisting bridges Seismic Design Philosophy for Bridges.

Seismicity and Geotechnical Considerations.

Conceptual Design.

Modeling and Analysis.

Design.

Design of Bridges Using Isolation and Dissipation Devices.

Seismic Assessment of Existing Bridges.

Retrofit Design.

References.

List of Symbols.

Index. M. J. N. PRIESTLEY and F. SEIBLE are professors in the Department of Applied Mechanics and Engineering Sciences of the University of California at San Diego. G. M. CALVI is a professor in the Department of Mechanical Structures at the University of Pavia in Italy. Because of their structural simplicity, bridges tend to be particularly vulnerable to damage and even collapse when subjected to earthquakes or other forms of seismic activity. Recent earthquakes, such as the ones in Kobe, Japan, and Oakland, California, have led to a heightened awareness of seismic risk and have revolutionized bridge design and retrofit philosophies.

In Seismic Design and Retrofit of Bridges, three of the world's top authorities on the subject have collaborated to produce the most exhaustive reference on seismic bridge design currently available. Following a detailed examination of the seismic effects of actual earthquakes on local area bridges, the authors demonstrate design strategies that will make these and similar structures optimally resistant to the damaging effects of future seismic disturbances.

Relying heavily on worldwide research associated with recent quakes, Seismic Design and Retrofit of Bridges begins with an in-depth treatment of seismic design philosophy as it applies to bridges. The authors then describe the various geotechnical considerations specific to bridge design, such as soil-structure interaction and traveling wave effects. Subsequent chapters cover conceptual and actual design of various bridge superstructures, and modeling and analysis of these structures.

As the basis for their design strategies, the authors' focus is on the widely accepted capacity design approach, in which particularly vulnerable locations of potentially inelastic flexural deformation are identified and strengthened to accommodate a greater degree of stress. The text illustrates how accurate application of the capacity design philosophy to the design of new bridges results in structures that can be expected to survive most earthquakes with only minor, repairable damage.

Because the majority of today's bridges were built before the capacity design approach was understood, the authors also devote several chapters to the seismic assessment of existing bridges, with the aim of designing and implementing retrofit measures to protect them against the damaging effects of future earthquakes. These retrofitting techniques, though not considered appropriate in the design of new bridges, are given considerable emphasis, since they currently offer the best solution for the preservation of these vital and often historically valued thoroughfares.

Practical and applications-oriented, Seismic Design and Retrofit of Bridges is enhanced with over 300 photos and line drawings to illustrate key concepts and detailed design procedures. As the only text currently available on the vital topic of seismic bridge design, it provides an indispensable reference for civil, structural, and geotechnical engineers, as well as students in related engineering courses.

A state-of-the-art text on earthquake-proof design and retrofit of bridges

Seismic Design and Retrofit of Bridges fills the urgent need for a comprehensive and up-to-date text on seismic-ally resistant bridge design. The authors, all recognized leaders in the field, systematically cover all aspects of bridge design related to seismic resistance for both new and existing bridges.

• A complete overview of current design philosophy for bridges, with related seismic and geotechnical considerations
• Coverage of conceptual design constraints and their relationship to current design alternatives
• Modeling and analysis of bridge structures
• An exhaustive look at common building materials and their response to seismic activity
• A hands-on approach to the capacity design process
• Use of isolation and dissipation devices in bridge design
• Important coverage of seismic assessment and retrofit design of existing bridges