Research on the Effect of Seismic Isolation on Shear Lag Effect of High Rise Tube Structure

By using the finite element analysis software ANSYS, this paper discusses the characteristics and changes of the shear lag in the horizontal seismic wave action, and analyzes the effect of the base isolation on the shear lag effect of the tube structure. The results show that under the action of horizontal earthquake waves, tube structure appears obvious shear lag effect, with the increase of the height, shear lag gradually weakenes until the negative shear lag appears; base isolation can obviously improve the shear lag effect and make the first position of appearing negative shear lag effect lower; under the different earthquake wave action, the degree of shear lag is different.