TY - GEN
T1 - Riccati solutions versus truly optimal designs of supplemental damping in earthquake engineering practice
AU - Levy, R.
AU - Lavan, O.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84865857027&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84865857027
SN - 9781615670444
T3 - 8th US National Conference on Earthquake Engineering 2006
SP - 4897
EP - 4906
BT - 8th US National Conference on Earthquake Engineering 2006
T2 - 8th US National Conference on Earthquake Engineering 2006
Y2 - 18 April 2006 through 22 April 2006
ER -
