CN113202203A - Novel lead damper with self-resetting shearing function - Google Patents
Novel lead damper with self-resetting shearing function Download PDFInfo
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- CN113202203A CN113202203A CN202110629205.6A CN202110629205A CN113202203A CN 113202203 A CN113202203 A CN 113202203A CN 202110629205 A CN202110629205 A CN 202110629205A CN 113202203 A CN113202203 A CN 113202203A
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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)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a novel self-resetting shearing type lead damper, which comprises a left lug plate, an auxiliary cylinder, a first spring, a main cylinder, an outer cylinder, a lead core, an end cover, a right lug plate, a second spring, a first baffle and a second baffle, wherein the right end of the main cylinder and the right lug plate are connected into a whole through a thread pair, the left end of the main cylinder is embedded into the auxiliary cylinder to form sliding fit, and the left end of the auxiliary cylinder and the left lug plate are connected into a whole through the thread pair; the first spring is arranged at the inner sides of the main cylinder and the auxiliary cylinder, the left end of the first spring is fixed with the left lug plate into a whole, and the right end of the first spring is fixed with the right lug plate into a whole; the outer cylinder is arranged on the outer side of the main cylinder, the inner side of the left end is connected with the auxiliary cylinder into a whole through a thread pair, and the inner side of the right end is connected with the end cover into a whole through a thread pair; the first baffle is vertically arranged on the outer barrel, the second baffle is vertically arranged on the main cylinder, and the second spring is arranged between the first baffle and the second baffle; the lead core is embedded into a clearance ring groove formed between the main cylinder and the outer cylinder, and the main cylinder drives the lead core to relatively slide when sliding, so that shearing energy consumption is reduced.
Description
Technical Field
The invention relates to the technical field of energy dissipation and shock absorption, in particular to a novel self-resetting shearing type lead damper.
Background
Along with the acceleration of the urbanization process of China, the urban scale is enlarged, the urban building structure is more complex, in the earthquake-resistant design, not only the life safety of people needs to be guaranteed, but also the economic loss caused by the damage of the building structure and equipment needs to be considered, the earthquake-resistant method of the traditional structure passively resists the earthquake action by enhancing the earthquake-resistant performance of the structure, and due to the randomness of the earthquake, people cannot accurately estimate the strength and the characteristics of the future earthquake action. In the earthquake-resistant design based on performance, the maximum deformation of a building is an important index for measuring the earthquake-resistant performance and the damage degree of a building structure, the residual deformation after earthquake is an urgent problem to be solved, the residual deformation easily enables the building to be incapable of meeting the limit state of normal use, especially, the excessive deformation enables part of components to be seriously damaged and needs to be reinforced and repaired on a large scale, the structure needs to be restored after earthquake and pushed, a large amount of manpower and financial resources are needed, and even the structure can only be pushed down to be rebuilt to cause huge waste. In order to solve the above problems, an ideal technical solution is always sought, and the theory of self-reset is followed.
At present, for the realization of the self-reset of the structure, the reset is realized mainly by applying external force on the structure, and the energy consumption capacity of the structure is increased by additionally arranging a friction piece. The above method is easier to implement when applied to new structures, but the construction workload is relatively large when applied to existing buildings.
Disclosure of Invention
In order to solve the problems, the invention provides a novel self-resetting shearing type lead damper from the perspective of conveniently realizing the self-resetting of the structure, which not only retains the good energy dissipation and shock absorption capacity of the lead damper, but also can realize the self-resetting after the earthquake.
The technical scheme adopted by the invention is as follows:
a novel lead damper with self-resetting shearing function comprises a left lug plate, an auxiliary cylinder, a first spring, a main cylinder, an outer cylinder, a lead core, an end cover, a right lug plate, a second spring, a first baffle and a second baffle, wherein the right end of the main cylinder and the right lug plate are connected into a whole through a thread pair; the first spring is arranged at the inner sides of the main cylinder and the auxiliary cylinder, the left end of the first spring is fixed with the left lug plate into a whole, and the right end of the first spring is fixed with the right lug plate into a whole; the outer cylinder is arranged on the outer side of the main cylinder, the inner side of the left end of the outer cylinder is connected with the auxiliary cylinder into a whole through a thread pair, and the inner side of the right end of the outer cylinder is connected with the end cover into a whole through a thread pair; the first baffle is vertically arranged on the outer barrel, the second baffle is vertically arranged on the main cylinder, and the second spring is arranged between the first baffle and the second baffle and fixed into a whole; the lead core is embedded into a clearance ring groove formed between the main cylinder and the outer cylinder, and the main cylinder drives the lead core to relatively slide when sliding, so that shearing energy consumption is reduced.
Furthermore, a lead core collecting groove is formed in one end, close to a lead core, of the auxiliary cylinder and the end cover, and lead is prevented from overflowing.
Furthermore, a first sealing groove is formed between the main cylinder and the end cover, and a sealing ring is installed in the first sealing groove.
Furthermore, a second sealing groove is arranged between the main cylinder and the auxiliary cylinder, and a sealing ring is installed in the second sealing groove.
Furthermore, a limiting groove is arranged between the main cylinder and the auxiliary cylinder to play a limiting role.
Furthermore, the right ear plate is fixedly connected with the bridge girder body through the anchoring assembly, and the left ear plate is fixedly connected with the abutment through the anchoring assembly.
The invention has the beneficial effects that:
(1) the invention not only keeps the good energy dissipation and shock absorption capacity of the lead damper, but also can realize self-resetting after the earthquake: the energy consumption form is that the lead core is sheared and deformed, the energy generated by external force is converted into the heat energy of the lead core, and the energy is absorbed by shock absorption; the device has the functions of tension and compression limiting and self-resetting, provides reliable resetting capability by utilizing the spring, has no residual displacement during unloading, and has stable working performance.
(2) The invention has simple structure and easy assembly, can realize self-resetting of compression and tension at the same time, achieves the combination of rigidity and flexibility, has symmetrical structural form and does not generate buckling deformation. The device has the advantages of flexible arrangement, simple and convenient installation, high operating efficiency and the like, can effectively reduce the displacement angle between the residual layers of the structure, reduces the repair cost, and is applicable to the field of bridge buildings.
Drawings
FIG. 1 is a schematic view of a lead damper with self-resetting shear according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of a lead collection groove and a second seal groove of an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of a spacing groove in accordance with an embodiment of the present invention;
reference numerals: 1-left lug plate, 2-auxiliary cylinder, 3-first spring, 4-main cylinder, 5-outer cylinder, 6-lead ring, 7-end cover, 8-sealing ring, 9-right lug plate, 10-second spring, 11-first baffle, 12-second baffle, 13-lead core collecting groove, 14-first sealing groove, 15-second sealing groove and 16-limiting groove.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a novel lead damper with self-resetting shearing, which comprises a left ear plate 1, a secondary cylinder 2, a first spring 3, a main cylinder 4, an outer cylinder 5, a lead core 6, an end cover 7, a right ear plate 9, a second spring 10, a first baffle 11 and a second baffle 12. The right end of the main cylinder 4 and the right lug plate 9 are connected into a whole through a thread pair, the left end of the main cylinder 4 is embedded into the auxiliary cylinder 2, the two realize mutual sliding, and the left end of the auxiliary cylinder 2 and the left lug plate 1 are connected into a whole through a thread pair; the first spring 3 is arranged at the inner sides of the main cylinder 4 and the auxiliary cylinder 2 and is used for providing restoring force, the left end of the first spring is fixed with the left lug plate 1 into a whole, and the right end of the first spring is fixed with the right lug plate 9 into a whole; the outer cylinder 5 is arranged outside the main cylinder 4, the inner side of the left end of the outer cylinder is connected with the auxiliary cylinder 2 into a whole through a thread pair, and the inner side of the right end of the outer cylinder is connected with the end cover 7 into a whole through a thread pair; the first baffle 11 is vertically arranged on the outer cylinder 5, the second baffle 12 is vertically arranged on the main cylinder 4, and the second spring 10 is arranged between the first baffle 11 and the second baffle 12 and fixed into a whole; the lead core 6 is embedded into a clearance ring groove formed between the main cylinder 4 and the outer cylinder 5, and the main cylinder 4 drives the lead core 6 to slide relatively when sliding, so that shearing energy consumption is reduced.
The working principle of the lead damper of the present embodiment is as follows:
under the condition of an earthquake, when horizontal thrust of the transverse bridge to the earthquake is transmitted to the right ear plate 9 through the structure, the main cylinder 4 moves leftwards relative to the auxiliary cylinder 2 under the action of external force, so that the first spring 3 and the second spring 10 are compressed, and meanwhile, the lead 6 between the outer cylinder 5 and the main cylinder 4 is driven to generate shear deformation, energy generated by the external force is converted into heat energy of the lead 6, and the energy is absorbed; when the external force is eliminated, the first spring 3 and the second spring 10 begin to recover the original length, and push the right ear plate 9 and the second baffle plate 12, so as to drive the main cylinder 4 to reset.
Under the condition of an earthquake, when horizontal tension of the transverse bridge to the earthquake is transmitted to the right ear plate 9 through the structure, the main cylinder 4 moves rightwards relative to the auxiliary cylinder 2 under the action of external force, so that the first spring 3 and the second spring 10 are stretched, and meanwhile, the lead 6 between the outer cylinder 5 and the main cylinder 4 is driven to generate shear deformation, energy generated by the external force is converted into heat energy of the lead 6, and the energy is absorbed; when the external force is eliminated, the first spring 3 and the second spring 10 begin to recover the original length, and stretch the right ear plate 9 and the second baffle 12, so as to drive the main cylinder 4 to reset.
Preferably, as shown in fig. 2, a lead core collecting groove 13 is arranged at one end of the secondary cylinder 2 and the end cover 7 close to the lead core 6, so that lead is prevented from overflowing to pollute the environment.
Preferably, a first seal groove 14 is provided between the master cylinder 4 and the end cover 7. As shown in fig. 2, a second seal groove 15 is provided between the main cylinder 4 and the sub-cylinder 2, and seal rings are installed in the first seal groove 14 and the second seal groove 15. More preferably, the sealing ring is provided as an annular metal sealing ring.
Preferably, as shown in fig. 3, a limiting groove 16 is provided between the main cylinder 4 and the auxiliary cylinder 2 to perform a limiting function.
Preferably, the right ear plate 9 is fixedly connected with the bridge girder body through an anchoring assembly, and the left ear plate 1 is fixedly connected with the abutment through the anchoring assembly.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
It should be noted that the foregoing method embodiments are described as a series of acts or combinations for simplicity in description, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
It should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the present invention is used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either a wired or wireless connection.
Claims (6)
1. The novel lead damper with the self-resetting shearing function is characterized by comprising a left lug plate (1), an auxiliary cylinder (2), a first spring (3), a main cylinder (4), an outer cylinder (5), a lead core (6), an end cover (7), a right lug plate (9), a second spring (10), a first baffle (11) and a second baffle (12), wherein the right end of the main cylinder (4) is connected with the right lug plate (9) into a whole through a thread pair, the left end of the main cylinder (4) is embedded into the auxiliary cylinder (2) to form sliding fit, and the left end of the auxiliary cylinder (2) is connected with the left lug plate (1) into a whole through the thread pair; the first spring (3) is arranged on the inner sides of the main cylinder (4) and the auxiliary cylinder (2), the left end of the first spring is fixed with the left lug plate (1) into a whole, and the right end of the first spring is fixed with the right lug plate (9) into a whole; the outer cylinder (5) is arranged on the outer side of the main cylinder (4), the inner side of the left end is connected with the auxiliary cylinder (2) into a whole through a thread pair, and the inner side of the right end is connected with the end cover (7) into a whole through a thread pair; the first baffle (11) is vertically arranged on the outer cylinder (5), the second baffle (12) is vertically arranged on the main cylinder (4), and the second spring (10) is arranged between the first baffle (11) and the second baffle (12) and fixed into a whole; the lead core (6) is embedded into a clearance ring groove formed between the main cylinder (4) and the outer cylinder (5), and the main cylinder (4) drives the lead core (6) to relatively slide when sliding, so that shearing energy consumption is reduced.
2. A new type of lead damper with self-resetting shearing according to claim 1, characterized in that the secondary cylinder (2) and the end cap (7) near the lead (6) are provided with lead collection grooves (13) to prevent lead overflow.
3. The novel lead damper with the self-resetting shear type according to claim 1, characterized in that a first sealing groove (14) is arranged between the main cylinder (4) and the end cover (7), and a sealing ring is installed in the first sealing groove (14).
4. The novel lead damper with the self-resetting shear type according to claim 1, characterized in that a second sealing groove (15) is arranged between the main cylinder (4) and the secondary cylinder (2), and a sealing ring is installed in the second sealing groove (15).
5. The novel lead damper with self-resetting shearing function according to claim 1, characterized in that a limiting groove (16) is arranged between the main cylinder (4) and the secondary cylinder (2) to limit.
6. The novel self-resetting shearing type lead damper as claimed in any one of claims 1-5, wherein the right ear plate (9) is fixedly connected with the bridge girder body through an anchoring component, and the left ear plate (1) is fixedly connected with the abutment through the anchoring component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629205.6A CN113202203A (en) | 2021-06-07 | 2021-06-07 | Novel lead damper with self-resetting shearing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110629205.6A CN113202203A (en) | 2021-06-07 | 2021-06-07 | Novel lead damper with self-resetting shearing function |
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| Publication Number | Publication Date |
|---|---|
| CN113202203A true CN113202203A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110629205.6A Pending CN113202203A (en) | 2021-06-07 | 2021-06-07 | Novel lead damper with self-resetting shearing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789880A (en) * | 2021-09-13 | 2021-12-14 | 温州益德建设有限公司 | Structure is built to antidetonation room |
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2021
- 2021-06-07 CN CN202110629205.6A patent/CN113202203A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789880A (en) * | 2021-09-13 | 2021-12-14 | 温州益德建设有限公司 | Structure is built to antidetonation room |
| CN113789880B (en) * | 2021-09-13 | 2022-09-20 | 温州益德建设有限公司 | Structure is built to antidetonation room |
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Effective date of registration: 20230119 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Applicant after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province Applicant before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |