Riccati solutions versus truly optimal designs of supplemental damping in earthquake engineering practice

R. Levy, O. Lavan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper compares optimal results that are based on the solution of Riccati equation with optimal results achieved by an analysis/redesign optimization scheme. Two examples of framed structures are considered: a 3 story shear frame excited by a single record and a 10 story industrial frame excited by an ensemble of 20 ground motions. The added damping for each of the structures is designed using each of the two methods such that the total added damping is equal for both. A time history analysis for the whole ensemble is carried out to yield the envelope of maximal inter-story drifts and their mean for all records. It is shown that the results of the analysis/redesign schemes are superior, in the practical sense, with respect to the Riccati based design.

Original languageEnglish
Title of host publication8th US National Conference on Earthquake Engineering 2006
Pages4897-4906
Number of pages10
StatePublished - 1 Dec 2006
Externally publishedYes
Event8th US National Conference on Earthquake Engineering 2006 - San Francisco, CA, United States
Duration: 18 Apr 200622 Apr 2006

Publication series

Name8th US National Conference on Earthquake Engineering 2006
Volume8

Conference

Conference8th US National Conference on Earthquake Engineering 2006
Country/TerritoryUnited States
CitySan Francisco, CA
Period18/04/0622/04/06

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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