CN110894738A - Disc-shaped tooth-shaped self-resetting device and application thereof - Google Patents
Disc-shaped tooth-shaped self-resetting device and application thereof Download PDFInfo
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- CN110894738A CN110894738A CN201911342283.7A CN201911342283A CN110894738A CN 110894738 A CN110894738 A CN 110894738A CN 201911342283 A CN201911342283 A CN 201911342283A CN 110894738 A CN110894738 A CN 110894738A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a disc-shaped toothed self-resetting device and application thereof, and the disc-shaped toothed self-resetting device comprises a disc-shaped upper toothed sheet, a disc-shaped middle toothed sheet and a disc-shaped lower toothed sheet, wherein two sides of the disc-shaped upper toothed sheet are provided with meshing teeth; the upper tooth plate and the lower tooth plate are connected to a building column through the extending ends and the connecting steel plates or connected to the building column through the connecting outrigger truss, and the middle tooth plate is connected to a building beam or the building column through the sleeved fixed end plate. The device makes the disc dentate device that warp after the vibrations recover the original state under the effect of belleville spring restoring force to make the building can recover rapidly after the vibrations. The method achieves double breakthrough in maintaining the appearance of the building and resisting earthquake. The device has the advantages of compact design, controllable acting force, wide application range, easy operation, small workload, high reliability and the like.
Description
Technical Field
The invention relates to the field of building shock absorption, in particular to a disc-shaped tooth-shaped self-resetting device and application thereof.
Background
The traditional earthquake-resistant building mainly improves the earthquake resistance of the structure by adjusting a structural system and increasing the cross section of a beam column. Increasing the beam-column cross section leads to large rigidity of individual areas of the structural system, but reduces the ductility of the structure, is not beneficial to earthquake resistance and is not beneficial to exerting the using function of the structure. In addition, by implementing the shock absorption measures, the main beam has large residual displacement after the earthquake, the structural system can not be restored to the initial state, and the requirements of emergency operation after the earthquake and the like are difficult to meet.
With the continuous progress of society, the application of the damping technology on buildings is more and more extensive, the damage of resisting earthquake by the traditional rigidity and earthquake resistance of the building structure is broken, and the building structure can reduce or even eliminate the residual displacement after earthquake by installing a device with the self-resetting function in the building node or wall.
The principle of the device is that under the action of external force, the device can lift the gravity center of the beam, convert a part of energy input by the external force into potential energy, and after the external force stops acting, the device consumes the stored potential energy in a friction energy consumption mode under the action of the self weight of the floor slab and the beam, so that the self-resetting of the node is realized. The device has the beneficial effects of simple structure, convenience, high efficiency and convenience for replacement after the earthquake. However, the force cannot be controlled, and the device is not convenient to set itself before installation.
The existing related devices also comprise a self-resetting friction wall which is used as a partition element of a building function and is installed in a structure, the self-resetting friction wall can dissipate vibration energy by using a friction mechanism and reduce the residual deformation of the structure after an earthquake, and the self-resetting friction wall has the advantages of multiple friction surfaces and strong energy consumption capability; the surface pressure is lower, and the loss of the friction pair is reduced. But the concrete implementation situation is complex, the working difficulty is high, the requirement is high, and the replacement is not easy after the damage.
Disclosure of Invention
To solve the above-mentioned drawbacks of the prior art, the present invention provides a self-resetting device which can be quickly restored after an earthquake, can control the acting force, and is easy to operate, and an application of the device in a building structure. The device makes the disc-shaped tooth-shaped device deformed after the earthquake restore to the original state under the action of the restoring force of the disc-shaped spring, so that the building structure can be quickly restored after the earthquake. The method achieves double breakthrough in maintaining the appearance of the building and resisting earthquake.
The invention is realized by the following technical scheme:
a disc-shaped toothed self-resetting device comprises a disc-shaped upper toothed sheet, a middle toothed sheet and a lower toothed sheet, wherein meshing teeth are arranged on two sides of the middle toothed sheet, the inner surfaces of the upper toothed sheet and the lower toothed sheet are correspondingly provided with the meshing teeth, the upper toothed sheet, the middle toothed sheet and the lower toothed sheet respectively penetrate through a pre-stressed threaded pipe and are connected through a nut padded with a disc spring, and the upper toothed sheet, the middle toothed sheet and the lower toothed sheet are meshed and overlapped together;
the upper tooth piece and the lower tooth piece are connected to a building column through the extending ends and the connecting steel plates or connected to the building column through the connecting outrigger truss, and the middle tooth piece is connected to a building beam or the building column through the sleeved fixed end plates.
In the scheme, the outer edge of the middle tooth piece is provided with an arc-shaped bulge, and the central hole of the fixed end plate sleeved on the arc-shaped bulge is matched with the outer edge of the middle tooth piece.
In the scheme, the middle tooth sheet is connected with a pair of beam end connecting pieces through the fixed end plates and is connected with the building beam;
the upper tooth piece and the lower tooth piece are vertically connected with the connecting steel plates through the extending ends, and the pair of connecting steel plates are symmetrically distributed in parallel and are hinged with the building column through the connecting column end connecting piece.
In the scheme, the middle tooth sheet is connected with the column end connecting piece through the fixed end plate and is connected with the building column through the column end connecting piece;
the upper tooth piece and the lower tooth piece are vertically connected with the connecting steel plates through the extending ends, and the pair of connecting steel plates are connected with the outrigger truss through the outrigger truss end connecting piece and connected with the building column.
In the scheme, the cross section of the meshing tooth is triangular or rectangular; the included angle theta between each single tooth of the triangular occlusion tooth with the section being more than or equal to 15 degrees and less than or equal to 30 degrees.
In the scheme, the tooth space of the meshing teeth on the upper tooth piece and the lower tooth piece is equal to the tooth space on the middle tooth piece and the cross section shape is equal.
In the above scheme, the prestressed threaded pipe is a hollow threaded pipe, and the prestressed sheet is inserted into the hollow threaded pipe.
In the scheme, the diameter D of the disc and the diameter D of the through hole of the pre-threaded pipe on the disc meet that D is more than or equal to 10mm and less than or equal to D.
In the scheme, the plurality of disc springs are respectively cushioned between the nut and the upper tooth plate and between the plurality of disc springs and the lower tooth plate, the adjacent disc springs are mutually buckled and butted, and the large-diameter end is respectively butted with the nut, the upper tooth plate and the lower tooth plate.
The invention has the beneficial effects that: when earthquake occurs, the sawteeth on the upper, middle and lower tooth plates of the device installed in the building are relatively displaced, the disk spring is compressed, and the tooth plates are meshed together again under the elastic force action of the disk spring after earthquake, so that the building can restore to the original state after earthquake. The invention is suitable for being connected to beams and columns of buildings and building columns connected through outrigger trusses. The invention has the advantages of compact design, controllable acting force, wide application range, easy operation, small workload, high reliability and the like.
Drawings
FIG. 1 is a side view of a core component of the device;
FIG. 2 is an exploded view of the core components of the device;
FIG. 3 is a three-dimensional view of the overall arrangement of the device embodiment 1;
FIG. 4 is a front view of the overall arrangement of the embodiment 1 of the apparatus;
FIG. 5(a) is a schematic view of the upper connecting member of embodiment 1 of the apparatus;
FIG. 5(b) is a schematic view of the lower connecting member of embodiment 1 of the apparatus;
FIG. 6(a) is a top view of the device for determining geometrical parameters of the lower tooth plate 3;
FIG. 6(b) is a side view for determining geometrical parameters of the lower blade 3 of the apparatus;
fig. 7 is a three-dimensional view of the overall arrangement of the device embodiment 2.
The reference numerals in the drawings denote: 1. a toothed sheet is arranged; 2. a middle tooth sheet; 3. a lower tooth sheet; 4 pre-treating the threaded pipe; 5. screwing a nut; 6. an upper disc spring; 7. a lower disc spring; 8. a lower nut; 9. an upper connecting steel plate; 10. a lower connecting steel plate; 11. fixing the end plate; 12. a beam-end connection; 13. a column end connector; 14. a building beam; 15. a building column; 16. an outrigger truss end connection; 17. an outrigger truss.
Detailed Description
The following description will be given of preferred embodiments of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail. The description of the invention herein is intended to be illustrative, but not limiting.
Fig. 1 shows a side view of a core member of a disc-shaped toothed self-resetting device, fig. 2 shows an exploded view of the core member of a disc-shaped toothed self-resetting device, fig. 3 shows a three-dimensional view of the overall arrangement of embodiment 1 of a disc-shaped toothed self-resetting device, and fig. 4 shows a front view of the overall arrangement of embodiment 1 of a disc-shaped toothed self-resetting device.
In one embodiment shown in fig. 1-4, the disc-shaped tooth-shaped self-resetting device is composed of a disc-shaped upper tooth plate 1, a disc-shaped middle tooth plate 2, a disc-shaped lower tooth plate 3, a pre-stressed threaded pipe 4, an upper nut 5, an upper disc-shaped spring 6, a lower disc-shaped spring 7, a lower nut 8, an upper connecting steel plate 9, a lower connecting steel plate 10 and a fixed end plate 11. The inner surfaces of the upper tooth piece 1 and the lower tooth piece 3 are correspondingly provided with the meshing teeth, the upper tooth piece 1, the middle tooth piece 2 and the lower tooth piece 3 respectively penetrate through the prestressed threaded pipe 4, and the centers of seven parts, namely an upper nut 5, an upper disc spring 6, an upper tooth piece 1, a middle tooth piece 2, a lower tooth piece 3, a lower disc spring 7 and a lower nut 8 sequentially penetrate through the prestressed threaded pipe from top to bottom to enable the seven parts to be tightly attached together, so that the upper, middle and lower tooth pieces are meshed and overlapped together; the upper tooth plate 1 is meshed with the middle tooth plate 2 in an upper mode, and the lower tooth plate 3 is meshed with the middle tooth plate 2 in a lower mode. The upper tooth plate 1 and the lower tooth plate 3 are connected to a building column 15 through tooth handles and an upper connecting steel plate 9 and a lower connecting steel plate 10, and the middle tooth plate 2 is connected to a building beam 14 through a sleeved fixed end plate 11.
One end of the fixed end plate 11 is fixed on a building beam 14 through a beam end connecting piece 12, the other end of the fixed end plate is fixedly connected with the middle tooth piece 2, one end of the middle tooth piece 2 in the device is provided with an arc-shaped bulge, a central hole of the fixed end plate sleeved on the middle tooth piece is matched with the outer edge of the middle tooth piece, and when the fixed end plate is connected with the fixed end plate 11, the fixed end plate cannot rotate relatively, so that a reasonable fixing effect is achieved. The upper tooth plate 1 and the lower tooth plate 3 are provided with the same and parallel extending ends and are used for being connected with an upper connecting steel plate 9 and a lower connecting steel plate 10, one end of the upper connecting steel plate 9 in the device is connected with the extending end of the upper tooth plate 1, and the other end of the upper connecting steel plate is hinged with a building column 15 through a column end connecting piece 13; one end of the lower connecting steel plate 10 is connected with the extending end of the lower tooth plate 3, and the other end thereof is hinged with a building column 15 through a column end connecting piece 13. The upper connecting steel plate 9 is parallel to the lower connecting steel plate 10, so that the device is prevented from being eccentric to cause instability in the use process.
The prestressed threaded pipe 4 in the device is a hollow threaded pipe, wherein a prestressed sheet can be inserted to measure the prestress, so that the reasonable screwing degree can be conveniently measured. The diameter of the prestressed threaded pipe is smaller than the diameter of the inner hole of each tooth sheet, so that the tooth sheets have movable spaces. The upper disc spring 6 and the lower disc spring 7 in the device are both disc springs, have the characteristics of short stroke, small deformation and large bearing capacity, and have higher space utilization rate compared with other types of springs.
Fig. 5(a) and 5(b) show schematic views of the respective connecting members of the apparatus. As shown in fig. 5(a), the column end connecting member 13 is formed of two arc-shaped steel members, which are connected to the upper and lower connecting steel plates 9 and 10 by bolts and nuts, respectively. The upper connecting steel plate 9 and the lower connecting steel plate 10 are both double steel plates, one end of each double steel plate is connected with the column end connecting piece, and the other end of each double steel plate is connected with the upper tooth piece 1 and the lower tooth piece 3. As shown in fig. 5(b), the beam-end connecting member 12 is two rectangular members, which are connected to the fixed end plate 11 by bolts and nuts.
Fig. 6(a) and fig. 6(b) show a top view and a side view of the lower blade 3 of the present invention, respectively, to illustrate the specific design of the present invention:
determining the included angle between teeth of each tooth sheet of the disc: in order to meet the requirements of the turning angles of different building structures, the included angle theta between each single tooth of the disc is not less than 15 degrees and not more than 30 degrees, and can be set according to specific conditions.
Determination of disc opening requirements: in order to ensure that the effective contact area among the tooth sheets is enough and the disc is not greatly weakened, the diameter D of the disc and the diameter D of an inner opening of the disc simultaneously satisfy D is more than or equal to 10mm and less than or equal to D.
The requirement of the diameter d' of the prestressed threaded pipe: in order to ensure that each tooth sheet has a movable space when the device works, the diameter d of the inner hole of the disc and the diameter d 'of the prestressed threaded pipe are specified to simultaneously meet the requirement that d-d' is more than or equal to 1mm and less than or equal to 2 mm.
Requirement of disc spring opening diameter d ″: in order to ensure that each tooth plate has a movable space when the device works, the diameter d ' of the opening of the disc spring and the diameter d ' of the pre-stressed threaded pipe are regulated to simultaneously meet the requirement that d ' is more than or equal to 1mm and less than or equal to 2 mm.
The requirements of the tooth depth t of each tooth sheet of the disc and the thickness t' of the extending end of each tooth sheet are as follows: the thickness of the tooth piece is T, and the tooth depth T is 1/2T; in order to ensure that the protruding end of the tooth blade is not thick and heavy and can ensure the strength requirement, the thickness t' of the protruding end is preferably 1/2 t.
Fig. 7 shows a three-dimensional view of the overall arrangement of embodiment 2 of a disk-shaped toothed self-resetting device. As shown in the figures, the disc-shaped toothed self-resetting device of the present embodiment has the same structure as that of embodiment 1, except that the toothed plate 2 is connected with the column end connector 13 through the fixed end plate 11 and is connected with the building column 15 through the column end connector 13; the upper tooth plate 1 and the lower tooth plate 3 are respectively connected with an outrigger truss end connecting piece 16 through an upper connecting steel plate 9 and a lower connecting steel plate 10, and are connected with an outrigger truss 17 through the outrigger truss end connecting piece 16, and the outrigger truss 17 is connected with a building column 15.
The working principle of the embodiment 1 of the invention is as follows:
the invention is suitable for connecting to beams and columns of buildings. When an earthquake occurs, when a building beam 14 and a building column 15 are affected by the earthquake and shake, the device is transmitted to the device through a beam end connecting piece 12, a fixed end plate 11, a column end connecting piece 13, an upper connecting steel plate 9 and a lower connecting steel plate 10, so that the engaging teeth on the upper tooth plate 1, the middle tooth plate 2 and the lower tooth plate 3 and the middle tooth plate 2 are relatively displaced, the upper disc spring 6 and the lower disc spring 7 are stressed and compressed, after the earthquake, under the action of the elastic force of the upper disc spring 6 and the lower disc spring 7, the upper tooth plate 1, the middle tooth plate 2 and the engaging teeth on the lower tooth plate 3 and the middle tooth plate 2 are meshed together again, the building structure is restored to the original position, and the building achieves the effect of restoring to the original position after the earthquake.
The working principle of the embodiment 2 of the invention is as follows:
the present invention is suitable for connection between the outrigger truss and the building column, and when the outrigger truss 17 and the building column 15 vibrate up and down under the influence of the outrigger truss and the building column and deform during an earthquake, the acting force is transmitted to the device through the outrigger truss end connecting piece 16 and the column end connecting piece 13, and the device generates the deformation and recovery process as in the above embodiment 1. Finally, the device is recovered, and the outrigger truss and the building column achieve the effect of recovering the original state after the earthquake.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (10)
1. A disc-shaped toothed self-resetting device is characterized by comprising a disc-shaped upper toothed plate, a disc-shaped middle toothed plate and a disc-shaped lower toothed plate, wherein meshing teeth are arranged on two sides of the disc-shaped upper toothed plate, meshing teeth are correspondingly arranged on the inner surfaces of the disc-shaped upper toothed plate and the disc-shaped lower toothed plate, the disc-shaped upper toothed plate, the disc-shaped middle toothed plate and the disc-shaped lower toothed plate respectively penetrate through the disc-shaped upper toothed plate, the disc-shaped middle toothed plate and the disc-shaped lower toothed plate through a pre-stressed threaded pipe, and the disc-shaped;
the upper tooth piece and the lower tooth piece are connected to a building column through the extending ends and the connecting steel plates or connected to the building column through the connecting outrigger truss, and the middle tooth piece is connected to a building beam or the building column through the sleeved fixed end plates.
2. The disc-shaped tooth-shaped self-resetting device according to claim 1, wherein the outer edge of the middle tooth plate is provided with an arc-shaped bulge, and the central hole of the fixed end plate sleeved on the arc-shaped bulge is matched with the outer edge of the middle tooth plate.
3. A disc-shaped toothed self-resetting device according to claim 1, wherein said central tooth is connected to the building beam by a pair of beam-end connectors connected by a fixed end plate;
the upper tooth piece and the lower tooth piece are vertically connected with the connecting steel plates through the extending ends, and the pair of connecting steel plates are symmetrically distributed in parallel and are hinged with the building column through the connecting column end connecting piece.
4. A disc-shaped tooth-shaped self-resetting device according to claim 1, wherein the middle tooth plate is connected with a column end connector through a fixed end plate and is connected with a building column through the column end connector;
the upper tooth piece and the lower tooth piece are vertically connected with the connecting steel plates through the extending ends, and the pair of connecting steel plates are connected with the outrigger truss through the outrigger truss end connecting piece and connected with the building column.
5. A disc-shaped toothed self-resetting device according to claim 1, wherein said meshing teeth are triangular or rectangular in cross-section; the included angle theta between each single tooth of the triangular occlusion tooth with the section being more than or equal to 15 degrees and less than or equal to 30 degrees.
6. The disc-shaped toothed self-resetting device according to claim 5, wherein the teeth pitch of the engaging teeth on the upper and lower tooth plates is equal to the teeth pitch of the middle tooth plate and has the same cross-sectional shape.
7. A disc-shaped toothed self-resetting device according to claim 1, wherein said pre-stressing threaded pipe is a hollow threaded pipe into which the pre-stressing sheet is inserted.
8. A disc-shaped toothed self-resetting device according to claim 1, wherein the diameter D of the disc and the diameter D of the through hole of the pre-threaded pipe thereon satisfy 10 mm. ltoreq. d.ltoreq.D.
9. A disc-shaped tooth-shaped self-resetting device according to claim 1, wherein a plurality of disc springs are respectively cushioned between the nut and the upper and lower tooth plates, and adjacent disc springs are engaged and butted with each other, and the large-diameter ends are butted with the nut, the upper tooth plate and the lower tooth plate, respectively.
10. Use of a disc-shaped toothed self-resetting device according to claims 1-9 for connection to beams and columns of a building and to building columns to which building columns and outrigger trusses are connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911342283.7A CN110894738A (en) | 2019-12-23 | 2019-12-23 | Disc-shaped tooth-shaped self-resetting device and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911342283.7A CN110894738A (en) | 2019-12-23 | 2019-12-23 | Disc-shaped tooth-shaped self-resetting device and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790847A (en) * | 2022-04-21 | 2022-07-26 | 东南大学 | Rotary type variable friction self-resetting node |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468392A (en) * | 2018-04-10 | 2018-08-31 | 同济大学 | Rotation Self-resetting energy-consuming device |
| CN211523600U (en) * | 2019-12-23 | 2020-09-18 | 西安建筑科技大学 | Disc-shaped tooth-shaped self-resetting device |
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2019
- 2019-12-23 CN CN201911342283.7A patent/CN110894738A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468392A (en) * | 2018-04-10 | 2018-08-31 | 同济大学 | Rotation Self-resetting energy-consuming device |
| CN211523600U (en) * | 2019-12-23 | 2020-09-18 | 西安建筑科技大学 | Disc-shaped tooth-shaped self-resetting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790847A (en) * | 2022-04-21 | 2022-07-26 | 东南大学 | Rotary type variable friction self-resetting node |
| CN114790847B (en) * | 2022-04-21 | 2023-10-13 | 东南大学 | Rotary friction-variable self-resetting node |
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