In this paper

the seismic response and its control strategy of a large complex structure are studied. Firstly

a finite element model of the structure is established

and the vibration properties are studied by using Ritz vector method.Then the damping ratio of the complex structure is obtained using weighted average potential method.Secondly

the mechanical properties of viscous energy dissipation braces of different types and the calculation model are studied.Lastly

the structural control plans for this structure are designed

and the reduction performance of different plans is analyzed.The results shows that the seismic response can be reduced effectively by configuring energy dissipation device and at the same time the architecture modeling does not need changing.Also it can be concluded that compared to the diagonalbraces

using chevron-braces is much more economical.The study of this paper can provide an important refcrence for the analysis of the structural control of large complex structures.