Abstract：The laminated viscoelastic body filled hyperbolic type steel tube damper (referred to as H-LVBSTD) was proposed in this paper. And its construction, working mechanism and characteristics were introduced. The finite element models of hollow steel tube damper (referred to as HSTD), hyperbolic type hollow steel tube damper (referred to as H-HSTD), laminated viscoelastic body filled steel tube damper (referred to as LVBSTD) and the H-LVBSTD were simulated by ABAQUS software. The stress distribution and mechanical properties of the four dampers were analyzed. The results show that setting internal laminated viscoelastic body in the steel tube damper can effectively delay local buckling of the steel tube, leading to full play of energy dissipation capacity of the steel tube. The form of hyperbolic type steel tube improves the stress distribution of the damper, so that the deformation and energy consumption are concentrated on the middle of the damper avoiding the end and the connecting failure. The H-LVBSTD possesses simple configuration, clear force transferring path and energy dissipation mechanism, full and symmetric hysteretic curves, and stable working performance. The high energy dissipation ability is also exhibited with a stable equivalent damping ratio of around 45%.
