Seismic Evaluation of Damped-Outrigger Incorporating Buckling-Restrained Braces Part II: Optimal design

摘要

1) Two methods were developed in this study. Based on thernanalysis results, max can be reduced best when  is between 0.6rnand 0.8 for Met. I and between 0.5 and 0.6 for Met. II.rn2) Based on the analytical results, the optimal  values were notrnfound to be significantly affected by either Rdb or Rdc. Larger Rdbrnand Rdc resulted in greater efficiency in reducing max. However,rnamax would be amplified if Rdb and Rdc are very large.rn3) The optimal Rdb and Rdc values in order to achieve minimumrnmax and amax are around 1 for Sbc ranging from 2 to 5, around 3rnfor Sbc ranging from 1 to 2, and around 4 for Sbc smaller than 1.rnFor design purposes, in order to enhance the outrigger effect,