Study On Seismic Performance Of The Mega Frame Grille Double Steel Plate Shear Wall System

To study what kind of structural system can meet the seismic performance requirements of kilometer-scale super-high-rise in the earthquake-proof intensity,a new type of grilleconcrete combined shear wall and a honeycomb-shaped large-frame grille double steel plate shear wall system proposed by Southeast University and the 7th Bureau of China Construction have been studied.（1）Based on literature research and preliminary analysis,a finite element analysis model of grille double steel plate shear wall is established,and compared with the results of the experiment done by the task group,the results show that the material structure relationship and parameter setting of the finite element model are reasonable,and the horizontal force performance and damage of grille-type double steel plate shear wall can be accurately reflected by the finite element model.（2）Based on the grid double steel plate shear wall finite element model,the mechanism of damage of grille-type double steel plate shear wall is analyzed,and the difference of horizontal carrying capacity and deformation capacity of grille-type double steel plate shear wall and other steel plate shear wall is compared.Then analyzes the seismic performance with different factor and puts forward some suggestions for engineering application.（3）Based on the research results of the grille-type double steel plate shear wall,the elastic analysis model of the kilometer-scale giant-frame grid-type double-steel plate shear wall system is established,and compared with the traditional giant-framed double-steel plate shear wall system,and the results show that the traditional giant-framed double-steel shear wall system can not meet the seismic performance demand under the earthquake of thousands of meters.（4）Through the EPDA result of the kilometer-scale giant-framed grid double-steel plate shear wall system,it shows that the huge frame grille-type double steel plate shear wall system can meet the seismic performance demand under the rare seismic effect of the high-altitude earthquake fortification intensity area of kilometer-scale super-high-rise earthquake...