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Propagating waves in the steel, moment-frame Factor Building recorded during earthquakes

Monica D. Kohler, Thomas H. Heaton and Samuel C. Bradford
Propagating waves in the steel, moment-frame Factor Building recorded during earthquakes
Bulletin of the Seismological Society of America (August 2007) 97 (4): 1334-1345

Abstract

Wave-propagation effects can be useful in determining the system identification of buildings such as the densely instrumented University of California, Los Angeles, Factor building. Waveform data from the 72-channel array in the 17-story moment-resisting steel frame Factor building are used in comparison with finite- element calculations for predictive behavior. The high dynamic range of the 24-bit digitizers allows both strong motions and ambient vibrations to be recorded with reasonable signal-to-noise ratios. A three-dimensional model of the Factor building has been developed based on structural drawings. Observed displacements for 20 small and moderate, local and regional earthquakes were used to compute the impulse response functions of the building by deconvolving the subbasement records as representative input motions at its base. The impulse response functions were then stacked to bring out wave-propagation effects more clearly. The stacked data are used as input into theoretical dynamic analysis simulations of the building's response.


ISSN: 0037-1106
EISSN: 1943-3573
Serial Title: Bulletin of the Seismological Society of America
Serial Volume: 97
Serial Issue: 4
Title: Propagating waves in the steel, moment-frame Factor Building recorded during earthquakes
Affiliation: University of California, , Los Angeles, Center for Embedded Networked Sensing, Los Angeles, CA, United States
Pages: 1334-1345
Published: 200708
Text Language: English
Publisher: Seismological Society of America, Berkeley, CA, United States
References: 15
Accession Number: 2007-095027
Categories: Engineering geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Secondary Affiliation: California Institute of Technology, USA, United StatesJet Propulsion Laboratory, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200742
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