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ISSN 1520-295X Property Modification Factors for Seismic Isolation Bearings by Michael C. Constantinou, Panos Tsopelas, Amarnath Kasalanati and Eric D. Wolff University at Buffalo, State University of New York Department of Civil, Structural and Environmental Engineering Ketter Hall Buffalo, New York 14260 Technical Report MCEER-99-0012 July 20, 1999 This research was conducted at th University at Buffalo, State University of New York and was supported by the Federal Highway Administration under contract number DTFH61-92-C-00106.

Property Modification Factors for Seismic Isolation Bearings

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ISSN 1520-295X

Property Modification Factors forSeismic Isolation Bearings

by

Michael C. Constantinou, Panos Tsopelas,Amarnath Kasalanati and Eric D. WolffUniversity at Buffalo, State University of New York

Department of Civil, Structural and Environmental EngineeringKetter Hall

Buffalo, New York 14260

Technical Report MCEER-99-0012

July 20, 1999

This research was conducted at th University at Buffalo, State University of New York and wassupported by the Federal Highway Administration under contract number DTFH61-92-C-00106.

NOTICEThis report was prepared by University at Buffalo, State University of New York asa result of research sponsored by the Multidisciplinary Center for Earthquake En-gineering Research (MCEER) through a contract from the Federal Highway Ad-ministration. Neither MCEER, associates of MCEER, its sponsors, University atBuffalo, State University of New York, nor any person acting on their behalf:

a. makes any warranty, express or implied, with respect to the use of any infor-mation, apparatus, method, or process disclosed in this report or that such usemay not infringe upon privately owned rights; or

b. assumes any liabilities of whatsoever kind with respect to the use of, or thedamage resulting from the use of, any information, apparatus, method, or pro-cess disclosed in this report.

Any opinions, findings, and conclusions or recommendations expressed in thispublication are those of the author(s) and do not necessarily reflect the views ofMCEER or the Federal Highway Administration.

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University at Buffalo The State University of New York

ISSN 1520-295X