Theoretical model and shaking table test verification of the new energy dissipation structure with damping concentration system
A new type of high-rise shock absorbing structure system is proposed,which adopts flexible sliding connection between the core tube and the outer frame,and centrally sets the aggregated damping shock absorption system to make full use of the lateral deformation difference between the inner core tube and the outer frame to dissipate seismic energy.A simplified particle system model of the new polymeric damping structure is established,and the displacement transfer formula under earthquake action is obtained.The shaking table model test of the model structure was conducted,and the shock absorption effect of the aggregate damping energy dissipation structure was verified.Finally,the seismic response and shock absorption effect of the inner core tube and the outer frame of the aggregated damping energy-dissipative shock absorption structure are obtained through the analysis of engineering examples,and the plastic damage state of different structural systems under earthquake action is further discussed.Theoretical and experimental research results indicate that aggregate damping energy dissipation structure can effectively control the plastic damage of structural components.