Earthquake damping and isolating mechanism

A seismic isolation, concave technology, applied in earthquake prevention, infrastructure engineering, building components, etc., can solve the problem of not considering the lifting and separation phenomenon, unable to form the function of building back, unable to play the role of shock absorption and isolation, etc.

Inactive Publication Date: 2003-02-12
姜立平
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] ① The contact between the rolling ball and the base and the cover plate is basically a point contact. Before the earthquake, it is fully loaded. Under the long-term static load, there will be pressure pits. During the earthquake, the rolling ball is easy to break and cannot play the role of shock absorption and isolation;
[0005] ②Because the base and the cover plate are arc-shaped concave surfaces, after the earthquake, the return function of the building cannot be formed under certain conditions;
[0006] ③ The lift-off phenomenon caused by the earthquake is not considered

Method used

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  • Earthquake damping and isolating mechanism

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Embodiment 2

[0057] The main difference between the device in embodiment 2 and the device described in embodiment 1 is that: the pot body 1 and the cover plate 4 are each provided with an annular groove. The cross-sectional shape of the annular groove is similar to the cross-sectional shape of the concave bottom surface on the bowl body 1 and the cover plate 4 in the device described in Scheme 1, and both are composed of arc line segments and oblique line segments. A plurality of rolling balls 2 are placed in the annular groove, thereby increasing the bearing capacity of the device. When there is no earthquake, multiple rolling balls are subject to the same preload and elastic deformation between the annular grooves 16 and 45 . The vertical loads it bears are basically the same, but when a horizontal earthquake occurs, the loads borne by each rolling ball are different.

[0058] Four, the feature of device of the present invention:

[0059] 1. When no earthquake occurs, since the main lo...

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Abstract

An earthquake damping and isolating structure for building is composed of a load-bearing pot body and acover plate each with central recess on their top and bottom surfaces respectively, rolling balls placed between them, annular elastic dampers, base and springs. The rolling balls arranged between the load-bearing pot body and the cover plate are stressed and deformed, but do net bear the load of building, which is borne by the ring plane between load-bearing body and cover plate. The annular elastic demper is installed on the annular boss in the load-bearing pot body. Its advantages are high vertical and horizontal rigidities, and high earthquake resisting effect.

Description

technical field [0001] The invention relates to earthquakes, and relates to a shock-absorbing and shock-isolating device for alleviating and avoiding destructive damage to buildings caused by earthquakes. Background technique [0002] Earthquakes bring great harm to the safety of human life and property. The seismic waves generated by earthquakes cause buildings to produce vertical up and down motions, horizontal swinging motions back and forth, and horizontal torsional motions. Among them, the most destructive force is the horizontal vibration and torsional vibration of the building. In the past, the construction industry usually used the method of increasing the strength and stiffness of the building to resist earthquakes, which greatly increased the construction cost, reduced the volume-to-material ratio of the building, and made the main part of the building appear bulky. In order to solve the disadvantages caused by simply relying on the method of increasing the streng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/34E04B1/98E04H9/02
Inventor 姜立平
Owner 姜立平
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