A support device for shock absorption and isolation of buildings, bridges and structures

Abstract

The invention discloses a supporting device for seismic mitigation and isolation of buildings, bridges and structures and relates to the field of seismic mitigation and absorption. The supporting device for seismic mitigation and isolation of the buildings, the bridges and the structures comprises an external sleeve, an internal sleeve, an internal curved surface steel plate, an upper connecting plate, a lower connecting plate, a first bolt, a second bolt, a third bolt, a fourth sealing internal hole bolt and a fifth oil seal internal bolt; the supporting device for seismic mitigation and isolation of the buildings, the bridges and the structures is characterized in that the external sleeve, the internal sleeve and the internal curved surface steel plate are all manufactured from steel materials; the upper end of the external sleeve is connected with the upper connecting plate; the lower end of the internal sleeve is connected with the lower connecting plate; the lower end of the external sleeve slides on the lower connecting plate; and the external sleeve is connected with the internal sleeve through the internal curved surface steel plate. According to the supporting device for seismic mitigation and isolation of the buildings, the bridges and the structures, by using comprehensive seismic mitigation and isolation mechanisms of sliding seismic mitigation and isolation, deformation seismic mitigation of the internal curved surface steel plate and liquid stagnation damping seismic mitigation, the self-seismic period of the structure can be prolonged, and the transmission ofa seismic force to an upper structure can be mitigated and isolated; and the supporting device for seismic mitigation and isolation of the buildings, the bridges and the structures has the characteristics of high bearing force, good seismic mitigation effect, automatic returning, replaceability and so on and is suitable for seismic mitigation and isolation applications of various buildings, bridges and structures.

Description

technical field [0001] The invention relates to the field of shock absorption and isolation, in particular to a supporting device for shock absorption and isolation of buildings, bridges and structures. Background technique [0002] With the development of science and technology and the improvement of people's material living standards, people not only have higher and higher requirements for the quality of life, but also pay more attention to sustainable development. In human history, the collapse of buildings caused by earthquakes has caused great harm to human beings, and the damage to bridges caused by earthquakes has caused huge losses to infrastructure and public safety. The safety of buildings after major earthquakes involves the safety of human life, property safety, and social stability. It is very important to improve the ability of buildings, bridges and structures to resist earthquake disasters. The most direct way to reduce earthquake disasters is to build earthq...

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Problems solved by technology

[0003] The above four methods have their own advantages and disadvantages. Ordinary building construction is simple and cannot prevent the damage to the building by the earthquake force. The only way to increase the cross-sectional size of the structure is to use more building materials such as reinforced concrete and steel, which consumes a lot of resources and is large. It is not easy to protect human life and property during an earthquake. After a major earthquake, the building itself is seriously damaged and needs to be demolished and rebuilt or reinforced with a lot of money before it can be used. The property attached to the building itself suffers heavy losses; The effect is small, and it affects the function of the building, and the cost of the building increases; the shock-isolation building with rubber shock-isolation bearings has good shock-isolation performance, and the damage to the building after a major earthquake is relatively light. It can be used directly, but the bearing capacity of the rubber isolation bearing is low, especially when it is subjected to a large earthquake, the ability of the structure to resist the tensile force is very low, and the effective compression area of ​​the rubber bearing decreases sharply when the horizontal displacement occurs in a large earthquake. Large eccentric compression state, poor anti-overturning ability, not suitable for taller high-rise buildings, and rubber bearings have poor fire resistance, complicated manufacturing process, high cost, especially large-sized rubber bearings, manufacturing defects are very serious Difficult to solve and difficult to detect manufacturing defects; bridges using metal sliding bearings have very low tensile capacity, and it is easy to cause the overall bridge to overturn during a large earthquake; the bearing capacity of rubber isolation bearings is difficult to meet the application of large bridges

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