Dynamic analysis is required for the seismic design of a building under certain conditions of irregularity, occupancy, and height. This publication addresses the methods by which a designer may comply with the seismic design requirements of the 2006 IBC, 2009 IBC, and ASCE/SEI 7-05: Equivalent Lateral Force Procedure, Modal Response Spectrum Analysis, or Seismic Response History Procedures. The focus is on Modal Response Spectrum Analysis, the most common dynamic analysis procedure, which is increasingly used as the basis of design. The purpose of this publication is to demystify design based on dynamic analysis and to provide answers to questions that have arisen over the years.

The book is divided into two parts: Part 1 explains the background and details; gives a step-by-step analysis procedure; and manually solves a three-story one-bay frame example to illustrate application of the procedure. Part 2 is devoted to the detailed design of a 20-story reinforced concrete building that uses a dual shear wall-frame interactive system for earthquake resistance.