Document Type

Article

Language

eng

Format of Original

23 p.

Publication Date

8-2011

Publisher

Earthquake Engineering Research Institute

Source Publication

Earthquake Spectra

Source ISSN

8755-2930

Original Item ID

doi: 10.1193/1.3608002

Abstract

Dynamic structural analysis often requires the selection of input ground motions with a target mean response spectrum. The variance of the target response spectrum is usually ignored or accounted for in an ad hoc manner, which can bias the structural response estimates. This manuscript proposes a computationally efficient and theoretically consistent algorithm to select ground motions that match the target response spectrum mean and variance. The selection algorithm probabilistically generates multiple response spectra from a target distribution, and then selects recorded ground motions whose response spectra individually match the simulated response spectra. A greedy optimization technique further improves the match between the target and the sample means and variances. The proposed algorithm is used to select ground motions for the analysis of sample structures in order to assess the impact of considering ground-motion variance on the structural response estimates. The implications for code-based design and performance-based earthquake engineering are discussed.

Comments

Published version. Earthquake Spectra, Vol. 27, No. 3 (August 2011): 797-815. DOI. © Earthquake Engineering Research Institute 2011. Used with permission.

Ting Lin was affiliated with Stanford University at time of publication

Copyright (2011) Earthquake Engineering Research Institute. This article may be downloaded for personal use only. Any other use requires prior permission of the Earthquake Engineering Research Institute.

Share

COinS