Reinforcement layer with variable damping

Abstract

A reinforcement layer with the variable damping comprises a core tube arranged in the middle of a building and a plurality of frame columns arranged on the periphery of the building. An outrigger truss with the variable damping is connected between the core tube and the frame columns, the plurality of peripheral frame columns are connected through annular trusses with variable damping, the annular trusses are integrally connected, the lateral stiffness resistance of the overall structure can be increased and the horizontal lateral sway of the structure can be reduced by the aid of the outrigger truss with the variable damping, the connection of the peripheral frame columns can be strengthened by the aid of the annular trusses with variable damping, the structural integrity is enhanced, the vertical deformation of frames is coordinated, and the vertical deformation difference is reduced, so that the structure is even in force bearing, a diagonal web member with variable damping is composed of an anti-buckling support and a viscous damper, the viscous damper enables the structure to deform and the creep to relax under the temperature load, the internal force of the structure is reduced, the main energy-consumption member of the structure is the viscous damper under the action of the wind load, and the main energy-consumption member of the structure is the anti-buckling support under actions of the fortification intensity and earthquakes above the fortification intensity.

Description

technical field [0001] The invention belongs to the field of civil structure engineering, in particular to a variable damping reinforcing layer. Background technique [0002] With the development of the economy, the construction of a large number of super high-rise buildings has become the main trend of urban construction. Many super high-rise buildings adopt the structural form of the combination of the middle core tube and the peripheral frame, and coordinate the relationship between the core tube and the frame by setting reinforcement layers. Stress and deformation. The reinforcement layer is usually arranged on the technical layer (building equipment layer, refuge floor), its height is often one floor high, and its stiffness is dozens of times greater than other horizontal components, so it is also called the rigid layer. There are three types of reinforcement layer components : One is the outrigger, the other is the hoop member, and the third is the waist truss and hat...

AI Technical Summary

Problems solved by technology

[0003] The reinforced layer can effectively improve the lateral stiffness of the structure and reduce the horizontal lateral displacement of the structure under wind load or earthquake. However, the stiffness of the structure changes suddenly at the reinforced layer and its adjacent floors. The ductile yield mechanism of "strong column weak beam" and "strong shear weak bending" is present. Due to the stress concentration of the reinforced layer and its adjacent floors, it is easy to form a weak layer, which leads to the damage or even collapse of the structure. Therefore, for the stiffness of the reinforced layer, on the one hand, In consideration of increasing the lateral stiffness of the overall structure, the greater the stiffness of the reinforcement layer, the better; on the other hand, considering the problem of sudden changes in structural stiffness, the stiffness of the reinforcement layer should not be too large, so a reinforcement layer was developed to make the overall structure reach the predetermined The anti-seismic performance target, under the action of rare earthquakes, can play the role of energy dissipation and shock absorption, which has important practical significance

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