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Three-dimensional shock insulation support capable of presetting vertical early rigidity

A seismic isolation bearing and vertical isolation technology, applied in the direction of earthquake resistance, building components, building types, etc., can solve the problems of reducing the cost of vibration isolation, shortening the effective working length of the spring, unable to stretch energy consumption and shock absorption, etc. The effect of cushioning tensile and compression shocks, reducing wind and shock costs, and reducing the risk of overturning

Pending Publication Date: 2017-02-22
ANHUI XINZE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the scheme described in this patent application can improve the tensile strength of the three-dimensional seismic isolation device to resist the huge tension generated by the swaying or even overturning of high-rise buildings in an earthquake, the following deficiencies still exist: 1. The spring isolation The support can only be compressed for energy consumption and shock absorption, but cannot be stretched for energy consumption and shock absorption; 2. The spring isolation support cannot preset the early stiffness, which is not convenient for presetting the seismic intensity to reduce the cost of isolation
However, this invention still has the following disadvantages: 1. The load connecting rod is balanced under the joint action of two groups of disc springs. Although the preload of the two groups of disc springs can be adjusted, no matter how they are adjusted, the The force of the disc spring on the load connecting rod is a set of equal and opposite forces. Just applying any external force on the load connecting rod will destroy this balance and deform the two sets of disc springs. Therefore, the 2. In this invention, two sets of disk springs must be used together to provide damping when the damper is under compression or tension load, which not only causes a certain waste, but also makes the damper greatly increased in length
It can be seen that although the stiffness of the spring in the patent application scheme can be changed, the effective working length of the spring is not only significantly shortened, but also can only be compressed for energy consumption and vibration reduction, and cannot be stretched for energy consumption and vibration reduction.

Method used

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  • Three-dimensional shock insulation support capable of presetting vertical early rigidity
  • Three-dimensional shock insulation support capable of presetting vertical early rigidity
  • Three-dimensional shock insulation support capable of presetting vertical early rigidity

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] See figure 1 , The three-dimensional seismic isolation support in this example is composed of a laminated rubber seismic isolation support and a vertical seismic isolation support connected in series.

[0043] See figure 1 with Figure 4 , The laminated rubber shock isolation support includes an upper connecting plate 14, a lower connecting plate 15, a laminated rubber pad 17 clamped between the upper and lower connecting plates, and six tensile steel cables 16; wherein, the upper The connecting plate 14 and the lower connecting plate 15 are both disc-shaped, and the edge of the upper connecting plate 14 is provided with mounting holes 13; the main body of the laminated rubber pad 17 is made up of a layer of rubber 17-1 and a layer of steel plate 17-2 alternately After being laminated, it is formed by compression and vulcanization, and a rubber protective layer 17-3 is naturally formed around it during the compression and vulcanization process. The upper and lower end fa...

example 2

[0056] This example has the following differences from Example 1:

[0057] See Figure 8-10 Both the first group of pre-compressed steel cables 8 and the second group of pre-compressed steel cables 9 are composed of three pre-compressed steel cables.

[0058] See Figure 8-10 , The upper end of the first group of pre-compressed steel cables 8 and the lower end of the second group of pre-compressed steel cables 9 are respectively fixed on the driving plate 5 and the base by using a steel cable self-locking anchor 19 instead of the eyebolts in Example 1. 3; In this example, the middle of the base 3 needs to be thickened and raised upward to form an inverted washbasin, so as to facilitate the installation of the wire rope self-locking anchor 19.

[0059] See Figure 11~13 And combine Figure 7 , The steel cable self-locking anchor 19 is composed of a mounting hole provided on a mounting plate 19-1, a clamping jaw 19-2 and an anti-loosening bolt 19-4, wherein the mounting plate 19-1 is t...

example 3

[0063] See Figure 14-16 The difference between this example and Example 2 is that the first group of pre-compressed steel cables 8 and the second group of pre-compressed steel cables 9 are both composed of five pre-compressed steel cables.

[0064] Embodiments other than the above in this example are the same as in Example 2.

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Abstract

The invention discloses a three-dimensional shock insulation support capable of presetting vertical early rigidity. The three-dimensional shock insulation support comprises a laminated rubber shock insulation support and a vertical shock insulation support which are sequentially connected in series in the vertical direction and is characterized in that a back pressure device is arranged in a guide sleeve of the vertical shock insulation support and comprises two sets of prepressing steel cables and two floating pressing plates, at least three prepreessing steel cables are included in each set, and the two sets of prepressing steel cables are distributed between a rubber air spring and the guide sleeve in a linear state. One ends of one set of prepressing steel cables are fixed to the floating pressing plate adjacent to a driving pressing plate, and the other ends of one set of prepressing steel cables penetrate through the floating pressing plate adjacent to a base to be fixed to the base. One ends of the other set of prepressing steel cables are fixed to the floating pressing plate adjacent to the base, and the other ends of the other set of prepressing steel cables penetrate through the floating pressing plate adjacent to the driving pressing plate to be fixed to the driving pressing plate. The two sets of prepressing steel cables are tensioned, so that the rubber air spring is clamped between the two floating pressing plates all the time.

Description

Technical field [0001] The invention relates to a building anti-vibration (or vibration) device, in particular to a three-dimensional vibration isolation device in which a sandwich steel plate rubber pad and a vertical vibration isolation support are connected in series. Background technique [0002] The seismic isolation device is a seismic isolation device located between the building and the foundation. Early seismic isolation devices were mainly two-dimensional seismic isolation bearings (laminated rubber seismic isolation bearings) formed by alternately overlapping rubber and thin steel plates, which could only isolate the horizontal component of seismic waves. With the improvement of people's understanding of the multi-dimensional characteristics of earthquakes, three-dimensional seismic isolation devices have gradually received attention from researchers in this field. The most common three-dimensional seismic isolation device is composed of laminated rubber seismic isola...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/36E04B1/98E04H9/02
CPCE04B1/36E04B1/98E04H9/021E04H9/022
Inventor 沈珊胡济福胡济全
Owner ANHUI XINZE TECH CO LTD
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