Damping seismic isolation and reduction device for building

Abstract

The invention discloses a damping seismic isolation and reduction device for building, which is characterized by comprising two seismic isolation units which are vertically overlaid with each other, wherein each isolation unit is combined by an A part and a B part, contact surfaces of the A and the B parts are provided with one or more guide rails and chutes which are relative concavely and convexly, the side surfaces of the chutes vertical to the sliding direction of the guide rails are provided with one or more elongated openings, a metal bar rubber block is inserted in each elongated opening, and the two ends of the metal bar rubber block are provided with steel bars. Acting force of seismic wave horizontal components to the buildings provided with the damping seismic isolation and reduction device can be reduced and isolated under this precondition that the buildings on the upper portions and the foundations can be effectively connected, thereby being capable of more securely achieving no collapsing in large earthquakes and no damage in middle earthquakes. Because the maximum displacement of the damping seismic isolation and reduction device is limited by a steel structure, rubber elastic materials and the like can not be acted by tension and shear, the problem that the buildings and the foundations are cut off caused by rubber fracture does not exist, and the damping seismic isolation and reduction device is safer in itself.

Description

[0001] technical field [0002] The invention relates to the technical field of buildings, in particular to a damping, shock-absorbing and shock-isolating device installed on buildings (structures) (hereinafter collectively referred to as buildings). Background technique [0003] Earthquakes have caused huge disasters to human beings. Most of the casualties and damages caused by earthquakes are caused by the collapse of buildings after the buildings cannot resist the earthquake shock, and the load-bearing components are damaged. The main reason for the deformation and damage of the building structure is that the horizontal vibration of the seismic transverse wavelength time causes the building to sway vertically. The seismic energy transmitted to the upper part of the building has no place to be consumed and can only return to the vicinity of the foundation. One impact happens to be superimposed. For frame structure buildings, the superimposed impulse exceeds the compressive...

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Problems solved by technology

[0003] Earthquakes have caused huge disasters to human beings. Most of the casualties and damages caused by earthquakes are caused by the collapse of buildings after the buildings cannot resist the earthquake shock, and the load-bearing components are damaged. The main reason for the deformation and damage of the building structure is that the horizontal vibration of the seismic transverse wavelength time causes the building to sway vertically. The seismic energy transmitted to the upper part of the building has no place to be consumed and can only return to the vicinity of the foundation. One impact happens to be superimposed. For frame structure buildings, the superimposed impulse exceeds the compressive strength of concrete, and the concrete in weak parts breaks, breaking the stable structure of concrete compressive resistance and steel bar tensile resistance. The instability and loss of rigid support cause the building to Collapse, and the collapse phenomenon that rarely occurs in steel structures is that the above-mentioned earthquake force continues to act on its weak parts, and repeated tension and compression cause metal fatigue and fracture. collapse

Of course, there are also buildings that do not comply with the seismic fortification requirements, the tensile strength of the steel in the building frame or structural columns is lower than the seismic impact strength (some houses do not even have earthquake-resistant structures), and the failure of the earthquake-resistant structure leads to the collapse of the house

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