Modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes

Abstract

A modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes includes an upper baseplate and a lower baseplate, where frequent earthquake energy dissipation components, moderate earthquake energy dissipation components, rare earthquake energy dissipation components and mega earthquake energy dissipation components are sequentially provided between the upper baseplate and the lower baseplate from the two ends to the middle; and further including wind vibration energy dissipation components provided between the upper baseplate and the lower baseplate and located at the two sides of the energy dissipation components, where the wind vibration energy dissipation component include an outer plate and an inner plate arranged at an interval and connected with the upper baseplate and the lower baseplate respectively, and a viscoelastic layer connected between the corresponding overlapping surfaces of the outer plate and the inner plate.

1 . A modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes, comprising an upper baseplate and a lower baseplate, wherein frequent earthquake energy dissipation components, moderate earthquake energy dissipation components, rare earthquake energy dissipation components and mega earthquake energy dissipation components are sequentially provided between the upper baseplate and the lower baseplate from two ends to a middle; and further comprising wind vibration energy dissipation components provided between the upper baseplate and the lower baseplate and located at two sides of the energy dissipation components, wherein the wind vibration energy dissipation components each comprise an outer plate and an inner plate arranged at an interval and connected with the upper baseplate and the lower baseplate respectively, and a viscoelastic layer connected between corresponding overlapping surfaces of the outer plate and the inner plate;
 the frequent earthquake energy dissipation components comprise two X-shaped plates connected between the upper baseplate and the lower baseplate and located at the two ends;   a baffle plate is fixed to a bottom surface of the upper baseplate in a length direction thereof, the baffle plate is located between the two X-shaped plates, and a bottom edge of the baffle plate is provided in a length direction thereof with a plurality of shear key slots, widths of the plurality of shear key slots gradually increase from two ends to a middle of the baffle plate, and the shear key slots of different widths correspond to the moderate earthquake energy dissipation components, the rare earthquake energy dissipation components and the mega earthquake energy dissipation components, respectively;   the moderate earthquake energy dissipation components, the rare earthquake energy dissipation components and the mega earthquake energy dissipation components each comprise a triangular plate, bottom sides of the triangular plates are connected with the lower baseplate, top ends of the triangular plates are located in the shear key slots, with movable gaps existing between the top ends and two sides of the shear key slots, and the gaps between the triangular plates of the moderate earthquake energy dissipation components, the rare earthquake energy dissipation components and the mega earthquake energy dissipation components and the shear key slots increase in sequence; and   the upper baseplate and the lower baseplate are provided with a plurality of screw holes configured for connecting the energy dissipation components, with the connecting performed by inserting bolts into the screw holes.   
     
     
         2 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 1 , wherein number of the X-shaped plates is two, and numbers of the triangular plates of the moderate earthquake energy dissipation components, the rare earthquake energy dissipation components and the mega earthquake energy dissipation components are all two. 
     
     
         3 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 1 , wherein a top edge of the outer plate is connected with the upper baseplate, and a bottom edge of the inner plate is connected with the lower baseplate. 
     
     
         4 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 3 , wherein a top surface of the upper baseplate and a bottom surface of the lower baseplate are each fixedly provided in a length direction with two pads symmetrically. 
     
     
         5 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 4 , wherein the two pads on the upper baseplate are located at inner sides of the two outer plates, and the two pads on the lower baseplate are located at outer sides of the two inner plates. 
     
     
         6 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 5 , wherein the pads are welded and fixed on the upper baseplate and the lower baseplate after being cut into notches. 
     
     
         7 . The modular graded energy-dissipation damper for resisting wind vibration and frequent, moderate, rare, and mega earthquakes according to  claim 2 , wherein a top edge of the outer plate is connected with the upper baseplate, and a bottom edge of the inner plate is connected with the lower baseplate.