CN-122014040-A - Self-resetting high-rise structure

CN122014040ACN 122014040 ACN122014040 ACN 122014040ACN-122014040-A

Abstract

The invention relates to a self-resetting high-rise structure which comprises two shear walls and two giant columns which are vertically arranged, wherein a plurality of horizontal cantilever trusses are arranged between each shear wall and each adjacent giant column along the vertical direction, a steel base is fixed at the lower end of each shear wall and is in contact with a building foundation, two first self-resetting dampers are symmetrically arranged beside the two shear walls, two ends of each first self-resetting damper are respectively hinged with the outer side surfaces of the shear walls and the building foundation, a plurality of self-resetting connecting beams are arranged between the two shear walls at intervals along the vertical direction, two ends of each self-resetting connecting beam are respectively connected with the two shear walls, and two groups of self-resetting energy dissipation mechanisms are respectively arranged corresponding to the two giant columns. Compared with the prior art, the invention can provide the energy consumption capability and the resetting capability for the whole left and right deformation process of the building structure, thereby reducing the obvious plastic deformation and larger residual displacement generated after the earthquake and enabling the building structure to recover to the initial position after the earthquake.

Inventors

GUO TONG
ZHU RUIZHAO
HU SHULING
XIA YU
CHENG SHIYAN
SHI XIN

Assignees

东南大学

Dates

Publication Date: 20260512
Application Date: 20260122

Claims (10)

1. A self-healing high-rise structure, comprising: the shear wall is positioned between the two giant columns, and a plurality of horizontal cantilever trusses are arranged between each shear wall and the adjacent giant column along the vertical direction; The steel base is fixed at the lower end of the shear wall and is contacted with the building foundation; the two first self-resetting dampers are symmetrically arranged beside the two shear walls, and two ends of each first self-resetting damper are respectively hinged with the outer side surface of the shear wall and the building foundation; The self-resetting connecting beams are arranged between the two shear walls at intervals along the vertical direction, and two ends of each self-resetting connecting beam are respectively connected with the two shear walls; The two groups of self-resetting energy dissipation mechanisms are respectively arranged corresponding to the two giant columns, each group of self-resetting energy dissipation mechanism comprises self-resetting energy dissipation units respectively corresponding to the cantilever trusses one by one along the vertical direction, and each cantilever truss is connected with the giant column through one self-resetting energy dissipation unit.
2. The self-resetting high-rise structure as claimed in claim 1, wherein the self-resetting energy dissipation unit comprises two first inclined supporting rods, two second inclined supporting rods and two second self-resetting dampers which are obliquely and symmetrically arranged and are in one-to-one correspondence, one end of each first inclined supporting rod and one end of each second inclined supporting rod are hinged to form a connecting node through the same pin shaft, one end of each self-resetting damper is further hinged to a pin shaft of the connecting node, and the other ends of each first inclined supporting rod, each second inclined supporting rod and each second self-resetting damper are hinged to the cantilever truss or the giant column.
3. The self-resetting high-rise structure as claimed in claim 2, wherein the other ends of the two first inclined struts are hinged at the same height position of the giant column, the hinged position is opposite to the middle position of the end part of the cantilever truss, the other ends of the two second inclined struts are respectively hinged with the upper flange and the lower flange of the end part of the cantilever truss, and the other ends of the two second self-resetting dampers are both hinged with the middle position of the end part of the cantilever truss.
4. The self-resetting high-rise structure as claimed in claim 2, wherein the other ends of the two first inclined struts are respectively hinged to two height positions of the giant column close to the upper flange and the lower flange of the cantilever truss, the other ends of the two second inclined struts are respectively hinged to the middle position of the end part of the cantilever truss, and the other ends of the two second self-resetting dampers are respectively hinged to the upper flange and the lower flange of the end part of the cantilever truss.
5. A self-resetting high-rise structure as claimed in claim 3 or 4, wherein the displacement deformation magnification factor of said second self-resetting damper satisfies: Wherein f is the displacement deformation amplification factor of the second self-resetting damper, theta 1 is an acute angle formed between the first inclined strut and the giant column, theta 2 is an acute angle formed between the second inclined strut and the cantilever truss, and theta 3 is an acute angle formed between the second self-resetting damper and the cantilever truss.
6. The self-resetting high-rise structure as claimed in claim 2, wherein the other ends of the two first inclined struts are respectively hinged with two height positions on the giant column close to the upper flange and the lower flange of the cantilever truss, the other ends of the two second inclined struts are respectively hinged with the middle position of the end part of the cantilever truss, and the other ends of the two second self-resetting dampers are respectively hinged with the same height position on the giant column, and the hinged positions are opposite to the middle position of the end part of the cantilever truss.
7. The self-resetting high-rise structure as claimed in claim 2, wherein the other ends of the two first oblique struts are hinged at the same height position of the giant column, the hinged positions are opposite to the middle position of the end part of the cantilever truss, the other ends of the two second oblique struts are hinged with the middle position of the end part of the cantilever truss, and the other ends of the two second self-resetting dampers are respectively hinged with the two height positions of the giant column close to the upper flange and the lower flange of the cantilever truss.
8. A self-resetting high-rise structure as claimed in claim 6 or 7, wherein the displacement deformation magnification factor of said second self-resetting damper satisfies: Wherein f is a displacement deformation amplification factor of the second self-resetting damper, theta 1 is an acute angle formed between the first inclined strut and the giant column, theta 2 is an acute angle formed between the second inclined strut and the cantilever truss, and theta 3 is an acute angle formed between the second self-resetting damper and the giant column.
9. The self-resetting high-rise structure as claimed in claim 2, wherein the positions of the giant posts close to the two connecting nodes are respectively horizontally provided with side plates, one ends of the side plates are connected with the giant posts, and the other ends of the side plates are hinged with the corresponding connecting nodes.
10. The self-resetting high-rise structure of claim 1, wherein wedge-shaped blocks are respectively arranged on two sides of the steel base, and the wedge-shaped blocks are connected with the building foundation.

Description

Self-resetting high-rise structure Technical Field The invention belongs to the technical field of building structures, and relates to a self-resetting high-rise structure. Background The traditional high-rise building structure based on ductile design generally relies on key components such as shear wall roots, connecting beams, cantilever trusses, giant column connecting areas and the like to generate plastic hinges or local yield under the action of strong earthquakes, and the earthquake input energy is dissipated through nonlinear deformation of the components, so that the basic earthquake-proof fortification goal of' large earthquake is realized, and the design concept is at the cost of sacrificing repairability of part of the components, and the life safety of the whole structure is ensured. However, the ductile energy dissipation mechanism has the obvious defect that after an earthquake, the key parts often generate obvious plastic deformation and large residual displacement, so that the building structure cannot automatically recover to the initial position, and the service functions of the building are seriously affected. Disclosure of Invention The invention aims to provide a self-resetting high-rise structure which can effectively provide energy consumption capability and resetting capability so that a building structure can be restored to an initial position after an earthquake. The aim of the invention can be achieved by the following technical scheme: a self-healing high-rise structure comprising: the shear wall is positioned between the two giant columns, and a plurality of horizontal cantilever trusses are arranged between each shear wall and the adjacent giant column along the vertical direction; The steel base is fixed at the lower end of the shear wall and is contacted with the building foundation; the two first self-resetting dampers are symmetrically arranged beside the two shear walls, and two ends of each first self-resetting damper are respectively hinged with the outer side surface of the shear wall and the building foundation; The self-resetting connecting beams are arranged between the two shear walls at intervals along the vertical direction, and two ends of each self-resetting connecting beam are respectively connected with the two shear walls; The two groups of self-resetting energy dissipation mechanisms are respectively arranged corresponding to the two giant columns, each group of self-resetting energy dissipation mechanism comprises self-resetting energy dissipation units respectively corresponding to the cantilever trusses one by one along the vertical direction, and each cantilever truss is connected with the giant column through one self-resetting energy dissipation unit. Compared with the prior art, the self-resetting energy dissipation mechanism drives the first self-resetting damper to extend and shorten in the swinging process of the shear wall, the energy consumption capability and the resetting capability are provided through the first self-resetting damper, meanwhile, in the swinging process of two shear walls, the energy consumption capability and the resetting capability are provided through the dislocation of a plurality of self-resetting connecting beams, in addition, the self-resetting energy dissipation mechanism connected with each cantilever truss increases the overall anti-side rigidity of the building structure, and the energy consumption capability and the resetting capability provided for the leftward and rightward deformation process of the whole building structure are reduced, so that obvious plastic deformation and large residual displacement are generated after an earthquake, and the building structure can be restored to the initial position after the earthquake. Drawings Fig. 1 is a schematic diagram of the overall structure of the present invention. FIG. 2 is a schematic structural view of a shear wall of the present invention connected to a first self-resetting damper. Fig. 3 is a schematic structural view of a self-resetting connecting beam in the present invention. FIG. 4 is a schematic diagram of a giant column according to the present invention. Fig. 5 is a schematic structural diagram of a first modified bearing system according to the present invention. Fig. 6 is a schematic structural diagram of a second modified bearing system according to the present invention. Fig. 7 is a schematic structural diagram of a third modified bearing system according to the present invention. Fig. 8 is a schematic structural diagram of a fourth modified bearing system according to the present invention. Fig. 9 is a schematic diagram of the overall structure of the present invention. Fig. 10 is an exploded view of the present invention. Fig. 11 is a schematic view of a first driving mechanism in the present invention. Fig. 12 is a schematic view of a second driving mechanism in the present invention. FIG. 13 is a schematic view of a self-resetting mechanism a