MODAL PUSHOVER ANALYSIS: SYMMETRIC- AND UNSYMMETRIC-PLAN BUILDINGS

摘要

After a brief evaluation of methods currently standard in engineering practice to estimate seismic demands, this paper emphasizes modal pushover analysis, which is shown to provide considerably improved estimated of demands, while retaining the conceptual simplicity and computational attractiveness of current nonlinear static pushover procedures. Rooted in structural dynamics theory, this procedure is ready for practical application to symmetric-plan buildings and is promising for unsymmetric-plan buildings.