Research Article
Dec 1980
Seismic Response by SRSS for Nonproportional Damping
Publication: Journal of the Engineering Mechanics Division
Volume 106, Issue 6
Abstract
A method is presented to obtain seismic design response of linearly behaving structures with nonproportional damping characteristics. For such systems, time history analyses are usually performed to obtain accurate seismic response. To obtain design response, such procedures can become expensive and cumbersome as an ensemble of time histories may have to be considered as seismic input. Other procedures have been developed to ascertain appropriate values of modal dampings so that modal analysis approach and thus commonly adopted square-root-of-the-sum-of-the-sqaures (SRSS) procedures can be used. The approach presented here considers nonproportional damping effects exactly in analytical sense. It uses state-vector formulation and is based on random virbration priciples. The approach is similar to conventional SRSS approach and thus ground response spectrum can be directly used to obtain designd respose.
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Published In
Journal of the Engineering Mechanics Division
Volume 106 • Issue 6 • December 1980
Pages: 1405 - 1419
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Dec 1980
Published online: Feb 3, 2021
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Authors
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Mahendra P. Singh, M.ASCE
Assoc. Prof., Dept. of Engrg Sci. & Mech., Virginia Polytect. Inst. & State Univ., Blacksburg, Va.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.