Response control strategy for tall buildings using interaction between mega-and sub-structures

ABSTRACT

A new response control strategy is proposed for tall buildings. The proposed control strategy takes the advantage of the mega-structure configuration which is an efficient structural system for a super tall building and does not require any additional mass. The sub-structures contained in the mega-structure serve as energy absorbers. The difficulties to augment supplemental damping into a tall building associated with the high rigidity of the structural system and the bending deformation are naturally resolved under the current control strategy. A numerical study is perfomed to demonstrate the feasibility of the strategy.(AU)