Structural Dynamics

The Seventh Edition of Structural Dynamics: Theory and Computation is a comprehensive text in the field of structural dynamics. It presents modern analytical methods and computational techniques in a clear and accessible manner. The book is ideal for advanced undergraduates and graduate students taking a first course in structural dynamics. With a particular focus on structural engineering, the text serves students in civil and environmental engineering at both the undergraduate and graduate levels. For master's and doctoral students, it functions as a primary resource, while its instructional design emphasizes effective learning and practical application. The book is also widely used by practicing engineers, many of whom seek information about the MATLAB codes provided throughout the text, underscoring its professional relevance. The text can be used for a one- or two-semester course and is suitable for instruction across both undergraduate and graduate curricula. It also serves as a valuable reference for practicing engineers. This Seventh Edition includes nearly twenty new fully solved illustrative examples and expands the problem sets to 285 exercises. New material includes examples on static condensation under support motion and plane frames subjected to ground excitation. The earthquake engineering chapters in Part VII have been updated to align with ASCE 7-22 and the 2024 International Building Code (IBC), including coverage of the multi-period design spectrum. In addition, a new chapter based on Dr. Kim's recent research demonstrates how the equation of motion can be reversed to address inverse problems and introduces model-updating methodologies. Throughout the book, MATLAB programs are presented alongside written step-by-step written solutions and verified against ground-truth hand calculations, allowing readers to compare each line of program output with the corresponding analytical solution. Reusable MATLAB function files for beams, frames, grids, and trusses enable students to assemble and analyze structures while keeping every matrix explicit and transparent. Interactive, browser-based companions to selected examples allow readers to modify parameters such as site class, structural system, mass, stiffness, and damping, and immediately observe the resulting changes in dynamic behavior and design response. These tools transform worked examples into interactive experiments and are provided as electronic supplementary material.