A disc-shaped toothed self-resetting device and its application

Abstract

The present invention discloses a disc-shaped toothed self-resetting device and its application, comprising a disc-shaped upper tooth piece, a middle tooth piece and a lower tooth piece, wherein both sides of the middle tooth piece are provided with engaging teeth, and the inner surfaces of the upper tooth piece and the lower tooth piece are provided with engaging teeth correspondingly, and the upper tooth piece, the middle tooth piece and the lower tooth piece are respectively penetrated by a prestressed threaded tube, and connected by a nut padded with a disc spring, so that the upper, middle and lower tooth pieces are meshed and overlapped together; the upper tooth piece and the lower tooth piece are connected to the building column through the extended end and the connecting steel plate or connected to the building column through the connecting boom truss, and the middle tooth piece is connected to the building beam or the building column through the sleeved fixed end plate. Under the action of the restoring force of the disc spring, the device restores the disc-shaped toothed device deformed after the earthquake to its original state, so that the building can be quickly restored after the earthquake. A double breakthrough is achieved in maintaining the appearance of the building and in earthquake resistance. The device has the advantages of compact design, controllable force, wide application range, easy operation, small workload and high reliability.

Description

Technical Field

[0001] The invention relates to the field of building shock absorption, and in particular to a disc-shaped toothed self-resetting device and application thereof. Background Art

[0002] Traditional earthquake-resistant buildings mainly improve their earthquake resistance by adjusting the structural system and increasing the cross-section of beams and columns. Increasing the cross-section of beams and columns will lead to greater stiffness in some areas of the structural system, which will reduce the ductility of the structure, which is not conducive to earthquake resistance and the use of the structure. In addition, the implementation of these shock-reduction measures will result in a large residual displacement of the main beam after the earthquake, which cannot restore the structural system to its initial state and makes it difficult to meet the requirements of post-earthquake emergency operations.

[0003] With the continuous progress of society, shock-absorbing technology is being used more and more widely in buildings, breaking the traditional method of relying on the stiffness of the building structure itself to resist earthquake damage. Instead, it installs self-resetting devices in the nodes or walls of the building to enable the building structure to reduce or even eliminate post-earthquake residual displacement.

[0004] Among the existing related devices, there is a self-weight friction energy-consuming self-resetting beam-column node. The principle of this device is that under the action of external force, the device can lift the center of gravity of the beam and convert part of the energy input by the external force into potential energy. After the external force stops acting, the device consumes the stored potential energy in the form of friction energy consumption under the self-weight of the floor and the beam to achieve the self-resetting of the node. This device has the beneficial effects of simple structure, convenient and efficient, and easy replacement after an earthquake. However, it cannot control the magnitude of the force, which is not convenient for the self-setting of the device before installation.

[0005] There is also a self-resetting friction wall in the existing related devices. It is installed in the structure as a dividing element of the building function. It is a self-resetting friction wall that uses the friction mechanism to dissipate vibration energy and can reduce the residual deformation of the structure after the earthquake. Its advantages are that it has many friction surfaces and strong energy dissipation capacity; the surface pressure is low, which reduces the loss of the friction pair. However, its specific implementation is complicated, the work is difficult and the requirements are high, and it is not easy to replace after damage. Summary of the invention

[0006] In order to solve the above defects existing in the prior art, the purpose of the present invention is to provide a self-resetting device which can quickly recover after an earthquake, whose force can be controlled and whose operation is easy, and the application of the device in a building structure. The device restores the disc-shaped toothed device deformed after an earthquake to its original state under the restoring force of a disc spring, so that the building structure can be quickly restored after an earthquake. A double breakthrough is achieved in maintaining the appearance of the building and in earthquake resistance.

[0007] The present invention is achieved through the following technical solutions:

[0008] A disc-shaped toothed self-resetting device comprises a disc-shaped upper tooth piece, a middle tooth piece and a lower tooth piece, wherein the middle tooth piece is provided with engaging teeth on both sides, and the inner surfaces of the upper tooth piece and the lower tooth piece are provided with engaging teeth correspondingly, and the upper tooth piece, the middle tooth piece and the lower tooth piece are respectively penetrated by a prestressed threaded tube, and connected by a nut padded with a disc spring, so that the upper, middle and lower tooth pieces are meshed and overlapped together;

[0009] The upper and lower tooth plates are connected to the building columns through the extended ends and the connecting steel plates or are connected to the building columns through the connecting cantilever trusses, and the middle tooth plates are connected to the building beams or building columns through the sleeved fixed end plates.

[0010] In the above scheme, an arc-shaped protrusion is provided on the outer edge of the middle tooth plate, and the central hole of the fixed end plate sleeved thereon matches the outer edge of the middle tooth plate.

[0011] In the above solution, the middle tooth piece is connected to the building beam by connecting a pair of beam end connectors through a fixed end plate;

[0012] The upper tooth piece and the lower tooth piece are vertically connected to the connecting steel plate through the extended ends. A pair of connecting steel plates are parallel and symmetrically distributed and are hinged to the building column through the connecting column end connecting piece.

[0013] In the above solution, the middle tooth piece is connected to the column end connector through a fixed end plate, and is connected to the building column through the column end connector;

[0014] The upper tooth piece and the lower tooth piece are vertically connected to the connecting steel plate through the extended end, and a pair of connecting steel plates are connected to the cantilever truss and the building column through the cantilever truss end connecting piece.

[0015] In the above scheme, the cross section of the meshing teeth is triangular or rectangular; the angle between each single tooth of the meshing teeth with a triangular cross section is 15°≤θ≤30°.

[0016] In the above scheme, the tooth spacing of the engaging teeth on the upper tooth plate and the lower tooth plate should correspond to the same tooth spacing on the middle tooth plate and have the same cross-sectional shape.

[0017] In the above scheme, the prestressed threaded tube is a hollow threaded tube, into which a prestressed sheet is inserted.

[0018] In the above solution, the diameter D of the disk and the diameter d of the prestressed threaded pipe through hole thereon satisfy 10mm≤d≤D.

[0019] In the above scheme, several disc springs are respectively placed between the nut and the upper and lower teeth, and adjacent disc springs are mutually buckled and connected, with the large diameter ends respectively connected to the nut, the upper and lower teeth.

[0020] The beneficial effect of the present invention is that during an earthquake, the saw teeth on the upper, middle and lower teeth of the device installed in the building are relatively displaced, the disc spring is compressed, and after the earthquake, under the elastic force of the disc spring, the teeth mesh together again, so that the building can be restored to its original state after the earthquake. The present invention is suitable for use on beams and columns connected to buildings and on columns of buildings connected by cantilever trusses. The present invention has the advantages of compact design, controllable force, wide application range, easy operation, small workload and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the core component of the device;

[0022] Figure 2 It is an exploded view of the core components of the device;

[0023] Figure 3 It is a three-dimensional diagram of the overall arrangement of device embodiment 1;

[0024] Figure 4 This is a front view of the overall arrangement of device embodiment 1;

[0025] FIG5( a ) is a schematic diagram of the upper connecting member of device embodiment 1;

[0026] FIG5( b ) is a schematic diagram of the lower connecting member of device embodiment 1;

[0027] FIG6( a ) is a top view of the device for determining the geometric parameters of the lower tooth plate 3;

[0028] FIG6( b ) is a side view of the device for determining the geometric parameters of the lower tooth plate 3;

[0029] Figure 7 It is a three-dimensional diagram of the overall layout of device embodiment 2.

[0030] The reference numerals in the figure represent respectively: 1. upper tooth plate; 2. middle tooth plate; 3. lower tooth plate; 4. prestressed threaded tube; 5. upper nut; 6. upper disc spring; 7. lower disc spring; 8. lower nut; 9. upper connecting steel plate; 10. lower connecting steel plate; 11. fixed end plate; 12. beam end connector; 13. column end connector; 14. building beam; 15. building column; 16. cantilever truss end connector; 17. cantilever truss. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention will be given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail. The description of the present invention is used to explain the present invention, but is not intended to limit the present invention.

[0032] Figure 1 A side view of the core component of a disc-shaped toothed self-resetting device is given. Figure 2The exploded diagram of the core components of a disc-shaped toothed self-resetting device is given. Figure 3 A three-dimensional diagram of the overall layout of a disc-shaped toothed self-resetting device embodiment 1 is provided. Figure 4 A front view of the overall layout of a disc-shaped toothed self-resetting device embodiment 1 is provided.

[0033] like Figure 1-4 In one embodiment shown, a disc-shaped toothed self-resetting device is composed of a disc-shaped upper tooth piece 1, a middle tooth piece 2, a lower tooth piece 3, a prestressed threaded tube 4, an upper nut 5, an upper disc spring 6, a lower disc spring 7, a lower nut 8, an upper connecting steel plate 9, a lower connecting steel plate 10, and a fixed end plate 11. Among them, the middle tooth piece 2 is provided with engaging teeth on both sides, and the inner surfaces of the upper tooth piece 1 and the lower tooth piece 3 are provided with engaging teeth correspondingly. The prestressed threaded tube 4 penetrates the upper tooth piece 1, the middle tooth piece 2 and the lower tooth piece 3 respectively, and the prestressed threaded tube passes through the centers of the seven components, namely, the upper nut 5, the upper disc spring 6, the upper tooth piece 1, the middle tooth piece 2, the lower tooth piece 3, the lower disc spring 7, and the lower nut 8 from top to bottom, so that they fit together tightly, and the upper, middle and lower tooth pieces are meshed and overlapped together; the upper tooth piece 1 is meshed with the middle tooth piece 2 at the top, and the lower tooth piece 3 is meshed with the middle tooth piece 2 at the bottom. The upper tooth piece 1 and the lower tooth piece 3 are connected to the building column 15 through the tooth handle and the upper connecting steel plate 9 and the lower connecting steel plate 10, and the middle tooth piece 2 is connected to the building beam 14 through the sleeved fixed end plate 11.

[0034] Among them, one end of the fixed end plate 11 is fixed to the building beam 14 through the beam end connector 12, and the other end is fixedly connected to the middle tooth plate 2. In the device, one end of the middle tooth plate 2 has an arc-shaped protrusion, and the central hole of the fixed end plate sleeved thereon matches the outer edge of the middle tooth plate. When it is connected to the fixed end plate 11, it will not rotate relative to each other, playing a reasonable fixing role. The upper tooth plate 1 and the lower tooth plate 3 have the same and parallel protruding ends, which are used to connect with the upper connecting steel plate 9 and the lower connecting steel plate 10. In the device, one end of the upper connecting steel plate 9 is connected to the protruding end of the upper tooth plate 1, and the other end is hinged to the building column 15 through the column end connector 13; one end of the lower connecting steel plate 10 is connected to the protruding end of the lower tooth plate 3, and the other end is hinged to the building column 15 through the column end connector 13. The upper connecting steel plate 9 is parallel to the lower connecting steel plate 10 to prevent the device from being eccentric and causing instability during use.

[0035] The prestressed threaded tube 4 in the device is a hollow threaded tube, into which a prestressed sheet can be inserted to measure the prestress, which is convenient for testing to obtain a reasonable tightening degree. The diameter of the prestressed threaded tube is smaller than the inner hole diameter of each tooth piece, so that the tooth piece has room for movement. The upper disc spring 6 and the lower disc spring 7 in the device are both disc springs, which have the characteristics of short stroke, small deformation, and large load-bearing capacity. Compared with other types of springs, they have higher space utilization.

[0036] Figures 5(a) and 5(b) respectively show schematic diagrams of the various connecting components of the device. As shown in Figure 5(a), the column end connector 13 is composed of two arc-shaped steel parts, which are connected to the upper connecting steel plate 9 and the lower connecting steel plate 10 respectively by bolts and nuts. The upper connecting steel plate 9 and the lower connecting steel plate 10 are both double steel plates, one end of which is connected to the column end connector and the other end is connected to the upper tooth plate 1 and the lower tooth plate 3. As shown in Figure 5(b), the beam end connector 12 is two rectangular parts, which are connected to the fixed end plate 11 by bolts and nuts.

[0037] FIG. 6( a ) and FIG. 6b respectively show a top view and a side view of the lower tooth plate 3 of the present invention to illustrate the specific design of the present invention:

[0038] Determination of the angle between the teeth of each disc: In order to meet the rotation angle requirements of different building structures, the angle between each single tooth of the disc is 15°≤θ≤30°, which can be set according to specific circumstances.

[0039] Determination of the requirements for the disc opening: To ensure that the effective contact area between the teeth is sufficient and that the disc is not significantly weakened, the disc diameter D and the inner opening diameter d should both satisfy 10mm≤d≤D.

[0040] Requirements for the diameter d' of the prestressed threaded pipe: In order to allow each tooth piece to have space to move when the device is working, it is stipulated that the inner hole diameter d of the disk and the diameter d' of the prestressed threaded pipe should both satisfy 1mm≤dd'≤2mm.

[0041] Requirements for disc spring opening diameter d": In order to allow each tooth piece to have space to move when the device is working, it is stipulated that the disc spring opening diameter d" and the prestressed threaded tube diameter d' should both satisfy 1mm≤d"-d'≤2mm.

[0042] Requirements for the tooth depth t of each tooth segment of the disc and the thickness t′ of each tooth segment's protruding end are as follows: the tooth segment thickness is T, and the tooth depth t=1 / 2T; in order to make the protruding end of the tooth segment neither too thick nor too heavy while ensuring its strength requirements, preferably, the protruding end thickness t′=1 / 2t.

[0043] Figure 7 A three-dimensional diagram of the overall layout of Example 2 of a disc-shaped toothed self-resetting device is provided. As shown in the figure, the disc-shaped toothed self-resetting device of this embodiment has the same structure as Example 1, except that the tooth piece 2 in this device is connected to the column end connector 13 through the fixed end plate 11, and is connected to the building column 15 through the column end connector 13; the upper tooth piece 1 and the lower tooth piece 3 are respectively connected to the boom truss end connector 16 through the upper connecting steel plate 9 and the lower connecting steel plate 10, and are connected to the boom truss 17 through the boom truss end connector 16, and the boom truss 17 is connected to the building column 15.

[0044] The working principle of embodiment 1 of the present invention is:

[0045] The present invention is suitable for connection to beams and columns of buildings. When an earthquake occurs, when the building beam 14 and the building column 15 are shaken by the earthquake, the device is transmitted to the device through the beam end connector 12, the fixed end plate 11, the column end connector 13, the upper connecting steel plate 9, and the lower connecting steel plate 10, so that the upper tooth piece 1 and the middle tooth piece 2, and the lower tooth piece 3 and the bite teeth on the middle tooth piece 2 are relatively displaced, and the upper disc spring 6 and the lower disc spring 7 are compressed by force. After the earthquake, under the elastic force of the upper disc spring 6 and the lower disc spring 7, the bite teeth on the upper tooth piece 1 and the middle tooth piece 2, and the lower tooth piece 3 and the middle tooth piece 2 are restored to their original positions and meshed together again, and the building structure is restored to its original position, so that the building can achieve the effect of restoring its original state after the earthquake.

[0046] The working principle of embodiment 2 of the present invention is:

[0047] The present invention is suitable for connecting between an outrigger truss and a building column. When an earthquake occurs, the outrigger truss 17 and the building column 15 are affected by the earthquake and vibrate up and down and deform. The force is transmitted to the device through the outrigger truss end connector 16 and the column end connector 13, and the device undergoes the deformation and recovery process as in the above-mentioned embodiment 1. Finally, the device is restored, and the outrigger truss and the building column are restored to their original state after the earthquake.

[0048] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A disc-shaped toothed self-resetting device, characterized in that: It includes a disc-shaped upper tooth piece, a middle tooth piece and a lower tooth piece, wherein the two sides of the middle tooth piece are provided with engaging teeth, and the inner surfaces of the upper tooth piece and the lower tooth piece are provided with engaging teeth correspondingly, and the upper tooth piece, the middle tooth piece and the lower tooth piece are respectively penetrated by a prestressed threaded tube, and connected by a nut padded with a disc spring, so that the upper, middle and lower tooth pieces are meshed and overlapped together; A plurality of disc springs are respectively placed between the nut and the upper and lower tooth plates, and the small diameter ends of adjacent disc springs are mutually buckled and butted, and the large diameter ends are respectively butted with the nut, the upper and lower tooth plates; The cross section of the engaging teeth is triangular; The cross section is a triangular meshing tooth with an angle between each single tooth of 15°≤θ≤30°; The prestressed threaded pipe is a hollow threaded pipe, into which a prestressed sheet is inserted; The diameter D of the disk and the diameter d of the prestressed threaded pipe through hole thereon satisfy 10mm≤d≤D; The upper and lower tooth plates are vertically connected to the connecting steel plates through the extended ends and connected to the building columns or connected to the building columns through the connecting cantilever trusses, and the middle tooth plates are connected to the building beams or building columns and the building columns connected to the cantilever trusses through the sleeved fixed end plates; An arc-shaped protrusion is arranged on the outer edge of the middle tooth piece, and the central hole of the fixed end plate sleeved thereon matches the outer edge of the middle tooth piece.

2. A disc-shaped toothed self-resetting device according to claim 1, characterized in that: The middle tooth piece is connected to the building beam by connecting a pair of beam end connectors through a fixed end plate; The upper tooth piece and the lower tooth piece are vertically connected to the connecting steel plate through the extended ends. A pair of connecting steel plates are parallel and symmetrically distributed and are hinged to the building column through the connecting column end connecting piece.

3. A disc-shaped toothed self-resetting device according to claim 1, characterized in that: The middle tooth piece is connected to the column end connecting piece through the fixed end plate, and is connected to the building column through the column end connecting piece; The upper tooth piece and the lower tooth piece are vertically connected to the connecting steel plate through the extended end, and a pair of connecting steel plates are connected to the cantilever truss and the building column through the cantilever truss end connecting piece.

4. A disc-shaped toothed self-resetting device according to claim 1, characterized in that: The tooth spacing of the engaging teeth on the upper tooth plate and the lower tooth plate should correspond to the same tooth spacing on the middle tooth plate and have the same cross-sectional shape.

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