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Dynamic Characteristics of Woodframe Buildings

Camelo, V. S. and Beck, J. L. and Hall, J. F. (2002) Dynamic Characteristics of Woodframe Buildings. In: Seventh U.S. National Conference on Earthquake Engineering, (7NCEE) : proceedings ; Urban Earthquake Risk, July 21-25, 2002, Boston, Massachusetts, USA. Earthquake Engineering Research Institute. , Oakland, CA, Paper No. ST-9c. ISBN 0943198100. https://resolver.caltech.edu/CaltechAUTHORS:20120919-160907030

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Abstract

The dynamic properties of wood shearwall buildings were evaluated, such as modal frequencies, damping and mode shapes of the structures. Through analysis of recorded earthquake response and by forced vibration testing, a database of periods and damping ratios of woodframe buildings was developed. Modal identification was performed on strong-motion records obtained from five buildings, and forced vibration tests were performed on a two-story house and a three-story apartment building, among others. A regression analysis is performed on the database to obtain a period formula specific for woodframe buildings. It should be noted that all test results, including the seismic data, are at small drift ratios (less than 0.1%), and the periods would be significantly longer for stronger shaking of these structures. Despite these low amplitudes, the equivalent viscous dampings for the fundamental modes were usually more than 10% of critical during earthquake shaking.


Item Type:Book Section
ORCID:
AuthorORCID
Hall, J. F.0000-0002-7863-5060
Additional Information:Funding for the research detailed in this report was provided by the Consortium of Universities for Research in Earthquake Engineering (CUREE) as part of the CUREE-Caltech Woodframe Project, under a grant administered by the California Office of Emergency Services and funded by the Federal Emergency Management Agency. The authors are also grateful for Professor Ziyad Duron’s generosity in lending the Harvey Mudd shaker. His expertise and that of his research assistants were invaluable.
Funders:
Funding AgencyGrant Number
Consortium of Universities for Research in Earthquake Engineering (CUREE)UNSPECIFIED
California Office of Emergency ServicesUNSPECIFIED
Federal Emergency Management AgencyUNSPECIFIED
Record Number:CaltechAUTHORS:20120919-160907030
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120919-160907030
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34247
Collection:CaltechAUTHORS
Deposited By: Carmen Nemer-Sirois
Deposited On:25 Sep 2012 23:02
Last Modified:13 Aug 2021 19:16

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