Evaluation of the accuracy of the Multiple Support Response Spectrum (MSRS) method

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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The MSRS rule is a response spectrum method for analysis of multiply supported structures subjected to spatially varying ground motions. This paper evaluates the accuracy of the MSRS rule by comparing MSRS estimates of mean peak responses with corresponding “exact” mean values obtained by time-history analysis with ensembles of simulated support motions. The simulated support motions are realizations of an array of non-stationary processes with a specified coherency function, generated with a simulation approach developed elsewhere by the authors. These sets of motions are characterized by consistent variability at all support points, and thus, are appropriate as input for statistical analysis. The structural systems considered are four bridge models selected to have vastly different structural characteristics. The responses examined are pier drifts, which are quantities particularly important in performance based design of bridges. Results indicate that the MSRS method is a reliable analysis tool.
Original languageEnglish
Title of host publicationProceedings of the 15th World Conference on Earthquake Engineering
Number of pages10
Publication date2012
StatePublished

Conference

Conference15th World Conference on Earthquake Engineering
Number15
CountryPortugal
CityLisbon
Period24/09/1228/09/12
Internet addresshttp://15wcee.org/

Bibliographical note

Reference: Konakli K. and Der Kiureghian A. Evaluation of the accuracy of the Multiple Support Response Spectrum (MSRS) method. Proceedings of 15th World Conference on Earthquake Engineering, Lisbon, Portugal, September 2012.

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