Seismic Evaluation of Damped-Outrigger Incorporating Buckling-Restrained Braces Part Ⅰ: Methodology

摘要

1) This study investigates the seismic performance of BRBoutriggerusing a simplified cantilever column model. Twomethods were developed by either fixing kg or kc as constant toperform SA and NLRHA. The results of SA incorporatingequivalent damping effect correlate well with NLRHA results.2) It is suggested to determine ud,y from the BRB axialdeformation in the first mode when roof drift reaches elasticdeformation limit. (1/750 for example).3) The investigation on optimal , Rdb, and Rdc is presented inthe next part of this study [5].