Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Evaluation of modal pushover-based scaling of one component of ground motion; tall buildings

Erol Kalkan and Anil K. Chopra
Evaluation of modal pushover-based scaling of one component of ground motion; tall buildings
Earthquake Spectra (November 2012) 28 (4): 1469-1493

Abstract

Nonlinear response history analysis (RHA) is now increasingly used for performance-based seismic design of tall buildings. Required for nonlinear RHAs is a set of ground motions selected and scaled appropriately so that analysis results would be accurate (unbiased) and efficient (having relatively small dispersion). This paper evaluates accuracy and efficiency of recently developed modal pushover-based scaling (MPS) method to scale ground motions for tall buildings. The procedure presented explicitly considers structural strength and is based on the standard intensity measure (IM) of spectral acceleration in a form convenient for evaluating existing structures or proposed designs for new structures. Based on results presented for two actual buildings (19 and 52 stories, respectively), it is demonstrated that the MPS procedure provided a highly accurate estimate of the engineering demand parameters (EDPs), accompanied by significantly reduced record-to-record variability of the responses. In addition, the MPS procedure is shown to be superior to the scaling procedure specified in the ASCE/SEI 7-05 document.


ISSN: 8755-2930
EISSN: 1944-8201
Serial Title: Earthquake Spectra
Serial Volume: 28
Serial Issue: 4
Title: Evaluation of modal pushover-based scaling of one component of ground motion; tall buildings
Affiliation: U. S. Geological Survey, Menlo Park, CA, United States
Pages: 1469-1493
Published: 201211
Text Language: English
Publisher: Earthquake Engineering Research Institute, Berkeley, CA, United States
References: 20
Accession Number: 2021-009691
Categories: SeismologyEngineering geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables
N33°45'00" - N34°45'00", W118°49'60" - W117°40'00"
Secondary Affiliation: University of California Berkeley, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2021, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 202103
Program Name: USGSOPNon-USGS publications with USGS authors
Close Modal

or Create an Account

Close Modal
Close Modal