About the Book Updates, Improvements, and Expanded Sections in the Fifth Edition NEW! Two new sections have been added to Chapter 20 , which is now more than twice its previous size. These additions were motivated by the increasing use of nonlinear response history analyses (RHAs) of buildings in professional practice. UPDATED! Individual chapter updates and revisions include: Chapter 13 has been extended to include a response-spectrum-based method to estimate principal stresses in continuum structures, such as concrete dams. Chapters 7, 9, and 18 have been expanded to include P--analysis of gravity load effects and an introduction to their influence on the lateral response, permanent deformation, and collapse of structures. Chapter 11 has been revised to include recent data on damping ratios determined by system-identification analysis of motions of 203 buildings recorded during earthquakes. New recommendations for estimating damping ratios to be used in earthquake analysis of structures are presented. Chapters 22 and 23 have been updated to reflect the current editions of building codes for designing new buildings, and of performance-based guidelines and standards for evaluating existing buildings. NEW! Many new figures, several worked-out examples, and end-of-chapter problems have been added.

Pedagogical Features Enhance Learning A section on application of the inelastic design spectrum to structural design is included. Examples on dynamics of bridges and their earthquake response are included. The text incorporates three building codes and the Eurocode. The theory of dynamic response of structures is presented in a manner that emphasizes physical insight into the analytical procedures. Structural dynamics theory is applied to conduct parametric studies that bring out several fundamental issues in the earthquake response and design of multistory buildings. Over 100 worked-out examples illustrate analytical procedures. Over 400 figures , carefully designed and executed to be pedagogically effective, are included in the text. Photographs of structures and their responses recorded during earthquakes are included to relate the presentation to the real world.