JP4700515B2 - Viscoelastic damper stopper and method for manufacturing the same - Google Patents

Description

  The present invention relates to a viscoelastic damper stopper that connects structures and restricts relative displacement between the structures, and a method of manufacturing the same.

  Conventionally, as a technique in such a field, a damper stopper described in Non-Patent Document 1 below is known. The damper stopper is installed on each bridge pier in order to connect the bridge girder and the bridge pier in a bridge that supports the bridge girder by a plurality of bridge piers. The damper stopper includes a cylindrical box portion fixed to the pier side and a stopper main body fixed to the bridge girder side. The stopper main body is inserted inside the box portion, and a viscoelastic body is filled between the inner wall of the box portion and the stopper main body. And the horizontal displacement of a bridge girder is controlled by the stopper main body inserted in the box part, and the falling bridge at the time of an earthquake etc. is prevented.

In this damper stopper, the viscoelastic body filled between the box and the inner wall follows the stopper body when the stopper body moves at a low speed, but when the stopper body moves at a high speed during an earthquake, etc., the stopper body Resist the movement of Due to the action of the viscoelastic body, when the bridge girder expands and contracts due to temperature change, the stopper main body gently moves inside the box while following the viscoelastic body and does not resist the expansion and contraction of the bridge girder. Also, in the event of an earthquake, the horizontal force due to the vibration of the bridge girder is transmitted to each pier by the viscoelastic body of each damper stopper, so the horizontal force received by each pier is distributed and biased only to a specific pier. It is possible to prevent a large load from being applied.
“Products for bridges”, [online], OILES Corporation, [Searched on December 1, 2005], Internet <URL: http://www.oiles.co.jp/bridge/taishin/kp_stopper/>

  In such a damper stopper, since the viscoelastic body filled between the box portion and the stopper body is generally an expensive material, the amount of use of the viscoelastic body is reduced in order to reduce the cost of the damper stopper. Reduction is desired. In order to reduce the viscoelastic body, it is conceivable to reduce the volume of the box part. However, in such a method, the inner wall of the box part and the outer wall of the stopper body are too close to each other so that the stopper body can be moved. There is a possibility that the range becomes small and the expansion and contraction due to the temperature change of the bridge girder cannot be absorbed sufficiently.

  Then, an object of this invention is to provide the viscoelastic body damper stopper which can reduce the usage-amount of a viscoelastic body, ensuring the movable range of a stopper main body, and its manufacturing method.

A viscoelastic damper stopper according to the present invention connects a first structure and a second structure, and regulates relative displacement between the first structure and the second structure. In the stopper, the cup part fixed to the first structure and opened to the second structure side, fixed to the second structure, extended to the first structure side, and inserted inside the cup part A stopper main body, and a buffer portion provided so as to fill a gap between the inner wall of the cup portion and the stopper main body. The buffer portion includes first and second viscoelastic layers made of a viscoelastic body; A laminated portion is formed in which an intermediate layer provided between the first viscoelastic layer and the second viscoelastic layer and made of a material different from the viscoelastic body is laminated in the extending direction of the stopper body . In the viscoelastic body forming the first and second viscoelastic layers, the stopper body is located with respect to the cup portion. Hinder the movement behavior with the stopper body as an elastic body when trying to move at a speed, that allows the movement behavior with the stopper body as a liquid high viscosity when the stopper body is to move at a low speed relative to the cup portion Features.

  In this viscoelastic damper stopper, relative displacement between the first structure and the second structure is restricted by the stopper body inserted in the cup portion. The space between the inner wall of the cup portion and the stopper body is filled with a buffer portion including a viscoelastic layer made of a viscoelastic body. Due to the nature of the viscoelastic body, the damper stopper resists the displacement by the buffer portion resisting as an elastic body against a rapid displacement between the first structure and the second structure. In addition, the damper stopper acts as a liquid against a gentle displacement between the first structure and the second structure and does not prevent the displacement. While making the elastic body follow, the inside of the cup portion moves gently, and no resistance is generated between the first structure and the second structure.

Here, the viscoelastic layer in the buffer portion is divided into a first viscoelastic layer and a second viscoelastic layer, and an intermediate layer is provided between the two layers. Therefore, since the viscoelastic body for forming the buffer portion is saved by the volume of the intermediate layer, the usage amount of the viscoelastic body can be reduced. In addition, according to such a configuration, it is not necessary to reduce the volume of the cup part in order to reduce the viscoelastic body, so it is possible to ensure the distance between the inner wall of the cup part and the stopper body, As a result, the movable range of the stopper body can be secured. Specifically, the first structure is one of a bridge girder or a support structure that supports the bridge girder, and the second structure is the other of the bridge girder or the support structure. The support structure may be a pier or an abutment.

  In this case, the intermediate layer is preferably made of a material exhibiting lower elasticity and / or lower viscosity than the viscoelastic body. When the intermediate layer exhibits low elasticity, the force exerted by the intermediate layer on the stopper main body when the buffer portion resists the displacement between the first structure and the second structure as an elastic body. And smaller than the second viscoelastic layer. Further, when the intermediate layer exhibits low viscosity, the force exerted on the stopper body by the intermediate layer when the buffer portion allows the displacement between the first structure and the second structure as a liquid is the first. Smaller than the first and second viscoelastic layers. Therefore, an excessive load on the stopper main body can be suppressed.

  The intermediate layer is preferably made of a material having a specific gravity different from that of the viscoelastic body. According to such a configuration, when the viscoelastic layer and the intermediate layer are produced from a liquid material, the layer structure can be formed by utilizing the difference in specific gravity, so that the manufacturing workability is improved.

  The viscoelastic damper stopper manufacturing method according to the present invention is a manufacturing method of the viscoelastic damper stopper described above, and a charging step of charging the viscoelastic material and the material of the intermediate layer into the cup part in a liquid state. And a separation step of separating the viscoelastic body and the material of the intermediate layer into layers by a difference in specific gravity.

  According to this manufacturing method, if the viscoelastic material and the material for the intermediate layer are charged in a liquid state, they are separated naturally due to the difference in specific gravity, and a layer structure is formed. Therefore, only the amount of both materials to be charged is controlled. Only the first viscoelastic layer and the intermediate layer can be produced, and as a result, the workability of manufacturing the buffer portion is improved.

  Moreover, the manufacturing method of the viscoelastic damper stopper according to the present invention is a manufacturing method of any one of the above viscoelastic damper stoppers, and includes a first layer manufacturing step of manufacturing a first viscoelastic layer in the cup portion, and An intermediate layer preparation step of arranging a partition on the prepared first viscoelastic layer and preparing an intermediate layer on the partition; and placing the partition on the prepared intermediate layer and placing the partition on the partition And a second layer manufacturing step of manufacturing a second viscoelastic layer.

  According to this manufacturing method, since each layer is produced while putting a partition between the first viscoelastic layer and the intermediate layer and between the intermediate layer and the second viscoelastic layer, each layer is being produced. As a result of being suppressed from being mixed with other layers, the workability of manufacturing the buffer portion is improved.

  Moreover, the manufacturing method of the viscoelastic damper stopper according to the present invention is a manufacturing method of any one of the above viscoelastic damper stoppers, and includes a first layer manufacturing step of manufacturing a first viscoelastic layer in the cup portion, and And a buffer layer manufacturing step comprising: an intermediate layer manufacturing step in which an intermediate layer is manufactured by disposing a block made of the material of the intermediate layer on the manufactured first viscoelastic layer.

  According to this manufacturing method, since the intermediate layer can be manufactured by disposing the block on the first viscoelastic layer, the workability of manufacturing the buffer portion is improved.

  Moreover, the manufacturing method of the viscoelastic damper stopper according to the present invention is a manufacturing method of any one of the above viscoelastic damper stoppers, and includes a first layer manufacturing step of manufacturing a first viscoelastic layer in the cup portion, and An intermediate layer manufacturing step of disposing a bag filled with the material of the intermediate layer on the manufactured first viscoelastic layer to prepare an intermediate layer, To do.

  According to this manufacturing method, since an intermediate | middle layer can be produced by arrange | positioning a bag on a 1st viscoelastic layer, the workability | operativity of preparation of a buffer part improves.

  ADVANTAGE OF THE INVENTION According to this invention, the usage-amount of a viscoelastic body can be reduced in a viscoelastic body damper stopper, ensuring the movable range of a stopper main body.

  Hereinafter, preferred embodiments of a viscoelastic damper stopper according to the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 3, a viscoelastic damper stopper 1 is used for the bridge 100. The bridge 100 includes two piers (first structure) 5 and two abutments (first structure) 7 fixed to the ground 3, and supports 11 on these piers 5 and abutments 7. And a bridge girder (second structure) 9 that is supported through the horizontal axis and extends in the horizontal direction. The viscoelastic damper stopper 1 is interposed between the bridge girder 9 and the bridge pier 5, and connects the respective upper ends of the bridge pier 5 and the lower surface of the bridge girder 9. Further, the viscoelastic damper stopper 1 is also interposed between the bridge girder 9 and the abutment 7 and connects the upper end of each of the abutment 7 and the lower surface of the bridge girder 9. Although details will be described later, the viscoelastic damper stopper 1 absorbs the expansion and contraction of the bridge girder 9 due to a temperature change or the like. In the case of an earthquake or the like, the bridge girder 5 and the abutment 7 Dropping of the bridge girder 9 is suppressed.

  As shown in FIGS. 2 and 3, the viscoelastic damper stopper 1 interposed between the bridge girder 9 and the bridge pier 5 is fixed to the lower surface of the bridge girder 9 and has a rectangular stopper body 15 extending downward. And a cup portion 17 having a rectangular shape in plan view that is fixed to the upper surface of the pier 5 and opened upward. The stopper main body 15 is formed smaller than the inner dimension of the cup portion 17 and is inserted so as not to contact the inner wall and the bottom wall of the cup portion 17. Therefore, a cup-shaped gap is formed between the inner wall of the cup portion 17 and the stopper main body 15 and between the bottom wall of the cup portion 17 and the tip end surface of the stopper main body 15. And the buffer part 21 is provided so that this gap | interval may be filled.

  The buffer portion 21 includes a laminated portion 22 having a three-layer structure. The laminated portion 22 includes a first viscoelastic layer 21a formed on the bottom side of the cup portion 17, a second viscoelastic layer 21b formed on the opening side of the cup portion 17, and the viscoelastic layers 21a and 21b. An intermediate layer 21c sandwiched between two layers is stacked in the vertical direction. The first viscoelastic layer 21a and the second viscoelastic layer 21b are made of a viscoelastic body. Therefore, in a normal state, it has properties as an elastic body. When the stopper main body 15 is about to move at a high speed inside the cup portion 17, the first viscoelastic layer 21 a and the second viscoelastic layer 21 b resist this movement as elastic bodies, and the stopper main body 15 is horizontal. Prevent movement. Further, when the stopper main body 15 is about to move at a low speed inside the cup portion 17, the first viscoelastic layer 21a and the second viscoelastic layer 21b behave as a highly viscous liquid and hinder horizontal movement of the stopper main body 15. Absent. In the buffer portion 21 of the viscoelastic damper stopper 1, an asphalt material made of asphalt is used as such a viscoelastic body.

  In addition, as a material for forming the intermediate layer 21c, compared to the asphalt material forming the first viscoelastic layer 21a and the second viscoelastic layer 21b, a material having a low elastic coefficient when it behaves as an elastic body, A material having a low viscosity coefficient when it behaves as a liquid is selected. By selecting such a material for the intermediate layer 12c, the force exerted by the buffer portion 21 on the stopper main body when the stopper main body 15 is moved at a high speed and at a low speed is applied to the first and second viscoelastic layers 21a and 21b. Smaller than. Therefore, it is possible to suppress an excessive horizontal load on the stopper body 15. If a material having a specific gravity different from that of the asphalt material is selected as the material of the intermediate layer 21c, the layer structure of the buffer portion 21 can be formed by a manufacturing method described later. In the buffer portion 21 of the viscoelastic damper stopper 1, water is adopted as a material for the intermediate layer 21c that satisfies such conditions.

  With the configuration described above, the stopper body 15 is regulated so as to be movable only inside the cup portion 17, so the viscoelastic damper stopper 1 moves horizontally with respect to the bridge pier 5 and the abutment 7 of the bridge girder 9. It has a function to regulate. Accordingly, even when the bridge girder 9 tries to move largely horizontally with respect to the pier 5 or the abutment 7, the stopper main body 15 hits the inner wall of the cup portion 17 and the horizontal movement is prevented. Is prevented from falling off.

  When the bridge girder 9 expands and contracts due to a temperature change, the stopper body 15 gently moves horizontally inside the cup portion 17, so that the first viscoelastic layer 21 a and the second viscoelastic layer 21 b have a high viscosity. It behaves as a liquid and does not hinder the movement of the stopper body 15. Accordingly, the stopper body 15 gently moves horizontally inside the cup portion 17 while following the asphalt material and water of the buffer portion 21, and as a result, can absorb the expansion and contraction of the bridge girder 9.

  Further, when the bridge girder 9 vibrates with respect to the bridge girder 5 and the abutment 7 during an earthquake or the like, the stopper main body 15 tries to move horizontally inside the cup portion 17 at a high speed, so the first viscoelastic layer 21a. The second viscoelastic layer 21 b behaves as an elastic body and transmits the horizontal force from the stopper body 15 to the bridge girder 5 and the abutment 7 while preventing the movement of the stopper body 15. Therefore, since this horizontal force is transmitted to the two bridge girders 5 and the two abutments 7 through the four viscoelastic damper stoppers 1 on average, each bridge girder 5 and each abutment 7 It is possible to prevent a large load from being applied to only the specific pier 5 or the abutment 7.

  The buffer portion 21 is provided with an intermediate layer 21c that does not use an asphalt material. That is, since the asphalt material for forming the buffer portion 21 saves only the volume of the intermediate layer 21c, the amount of asphalt material used can be reduced, and the cost of the viscoelastic damper stopper 1 can be reduced. Can be planned. Further, since the intermediate layer 21c is provided as a layer extending in the horizontal direction, the amount of asphalt material used can be reduced while ensuring the horizontal cross-sectional area of the cup portion 17. Therefore, a horizontal gap between the inner wall of the cup portion 17 and the stopper main body 15 can be secured, and as a result, a horizontal movable range of the stopper main body can be secured.

  In order to reduce the cost of the viscoelastic damper stopper 1, it is conceivable that the stopper body 15 is made of reinforced concrete (RC) instead of steel. In this case, when the stopper main body 15 receives a force in the horizontal direction, the internal reinforcing bars are pulled in the extending direction of the stopper main body 15 due to the distortion of the stopper main body 15 and try to separate the concrete and the reinforcing bars. Force is generated. In order to prevent the separation between the reinforcing bar and the concrete due to this force, it is necessary to increase the contact area between the reinforcing bar and the concrete. Therefore, it is necessary to design the length of the reinforcing bar and the length of the stopper body 15 itself to be long. is there. Thus, even when the stopper main body 15 becomes long, if the configuration of the buffer portion 21 described above is adopted, the amount of asphalt material used can be reduced while ensuring the movable range of the stopper main body 15. Therefore, further cost reduction can be achieved.

  The material of the first viscoelastic layer 21a and the second viscoelastic layer 21b is not limited to an asphalt material, and other viscoelastic bodies such as oil, lead, mercury, silicon oil, and synthetic resin can be used. It is. The material for forming the intermediate layer 21c is not limited to water, and air, oil, or the like can be used. Rubber or urethane, which is a viscoelastic body having lower elasticity and / or lower viscosity than an asphalt material. It is also possible to use cloth or the like. Alternatively, an asphalt material having a lower viscosity than the first viscoelastic layer 21a and the second viscoelastic layer 21b may be prepared and used as the material for the intermediate layer 21c.

  The viscoelastic damper stopper according to the present invention is not limited to the above-described embodiment. For example, the stopper main body 15 and the cup portion 17 may be used upside down by fixing the stopper main body 15 to the upper surface of the pier 5 or the abutment 7 and fixing the cup portion 17 to the lower surface of the bridge girder 9. Moreover, the partition for preventing mixing of the material of each layer may be provided between the 1st viscoelastic layer 21a and the intermediate | middle layer 21c, and between the intermediate | middle layer 21c and the 2nd viscoelastic layer 21b. . Such a partition is preferably deformable in accordance with the movement of the stopper body 15. The stopper body 15 is not limited to a rectangular cross section, and may be a circular cross section. Further, the cup portion 17 is not limited to a rectangular shape in plan view, and may be circular in plan view. Moreover, you may combine suitably the stopper main body of such various shapes, and a cup part of various shapes.

  Next, an embodiment of a method for manufacturing the viscoelastic damper stopper 1 according to the present invention will be described.

(First embodiment)
As shown in FIG. 4, the stopper main body 15 and the cup portion 17 are prepared, and the stopper main body 15 is inserted inside the cup portion 17. Then, an asphalt material and water which are heated to about 50 to 100 ° C. and made liquid are prepared, and the liquid asphalt material and water are formed in a gap formed between the stopper main body 15 and the inner wall of the cup portion 17. (Fig. 4 (a)). Since the specific gravity of water is smaller than that of the liquid asphalt material, the mixture 31 of the liquid asphalt material and water is separated into two upper and lower layers depending on the specific gravity difference. Thereafter, the separated lower asphalt material is cooled to a high viscosity, and the first viscoelastic layer 21a is formed. Further, the intermediate layer 21c is formed by the separated water layer (FIG. 4B). Next, the partition plate 33 is installed on the intermediate layer 21c, and a liquid asphalt material is put on the partition plate 33, cooled to increase the viscosity, and the second viscoelastic layer 21b is formed (FIG. 4). (C)). As described above, the buffer portion 21 is completed, and the viscoelastic damper stopper 1 is completed.

  In this manufacturing method, if the asphalt material and water are charged in a liquid state, the asphalt material and water are naturally separated due to the difference in specific gravity, and a layer structure is formed. It is possible to produce the first viscoelastic layer 21a and the intermediate layer 21c only by managing the amount, and as a result, the workability of producing the buffer portion 21 is improved.

(Second Embodiment)
As shown in FIG. 5, the stopper main body 15 and the cup portion 17 are prepared, and the stopper main body 15 is inserted inside the cup portion 17. Then, an asphalt material that is heated to about 50 to 100 ° C. and made liquid is prepared, and the liquid asphalt material is put into a gap formed between the stopper body 15 and the inner wall of the cup portion 17. Thereafter, the asphalt material is cooled to increase the viscosity, and the first viscoelastic layer 21a is produced (see FIG. 5A). Next, a partition plate 35 is installed on the produced first viscoelastic layer 21a, and a partition plate 37 is installed above the partition plate 35 at a predetermined interval. Thus, an air layer is formed between the partition plate 35 and the partition plate 37, and this air layer constitutes the intermediate layer 21c (FIG. 5B). Thereafter, a liquid asphalt-based material is put on the partition plate 37, cooled to increase the viscosity, and the second viscoelastic layer 21b is formed (FIG. 5C). As described above, the buffer portion 21 is completed, and the viscoelastic damper stopper 1 is completed.

  According to this manufacturing method, each layer is produced while putting the partition plates 35 and 37 between the first viscoelastic layer 21a and the intermediate layer 21c and between the intermediate layer 21c and the second viscoelastic layer 21b, respectively. Therefore, as a result of suppressing mixing with other layers during the production of each layer, the workability of producing the buffer portion 21 is improved. Further, in the viscoelastic damper stopper 1 in which the intermediate layer 21c is formed of a gas layer such as air, the partition plates 35 and 37 are used to provide a space between the first viscoelastic layer 21a and the second viscoelastic layer 21b. In addition, the gas layer can be efficiently formed.

(Third embodiment)
As shown in FIG. 6, the 1st viscoelastic layer 21a is produced similarly to the said 2nd Embodiment (refer Fig.6 (a)). Next, a viscoelastic body block 39 having a shape corresponding to the shape of the intermediate layer 21c and surrounding the stopper main body 15 is prepared (see FIG. 6B) and installed on the first viscoelastic layer 21b (FIG. 6 ( c) Reference) The viscoelastic body block 39 constitutes an intermediate layer 21c. After that, a liquid asphalt material is put on the viscoelastic block 39, cooled and made highly viscous to form the second viscoelastic layer 21b (FIG. 6D), and the buffer portion 21 is completed. Thus, the viscoelastic damper stopper 1 is completed.

  According to this manufacturing method, since the intermediate layer 21c can be produced by arranging the viscoelastic body block 39 on the first viscoelastic layer 21a, the workability of producing the buffer portion 21 is improved.

(Fourth embodiment)
As shown in FIG. 7, the 1st viscoelastic layer 21a is produced similarly to 2nd Embodiment (refer Fig.7 (a)). Next, an air bag 41 having a shape surrounding the stopper main body 15 corresponding to the shape of the intermediate layer 21c is prepared (see FIG. 7B) and placed on the first viscoelastic layer 21b (FIG. 7C). reference). The air bag 41 is filled with air. The intermediate layer 21c is constituted by the air layer filled in the air bag 41. Thereafter, a liquid asphalt material is put on the air bag 41, cooled to increase the viscosity, and the second viscoelastic layer 21b is formed (FIG. 7C). Thereafter, only the air bag 41 is removed while leaving the air layer as the intermediate layer 21c, whereby the buffer portion 21 is completed and the viscoelastic damper stopper 1 is completed. In this case, the air bag 41 may be left in the buffer portion 21 without being removed.

  According to this manufacturing method, since the air bag 41 is disposed on the first viscoelastic layer 21a, the intermediate layer 21c constituted by the air layer inside the air bag 41 can be produced. The workability of manufacturing is improved.

It is a figure which shows an example of the bridge in which the viscoelastic body damper stopper which concerns on one Embodiment of this invention is used. It is II-II sectional drawing in FIG. It is the figure which expanded the viscoelastic body damper stopper shown by FIG. (A), (b), (c) is a figure which shows 1st Embodiment of the manufacturing process of the viscoelastic body damper stopper which concerns on this invention. (A), (b), (c) is a figure which shows 2nd Embodiment of the manufacturing process of the viscoelastic body damper stopper which concerns on this invention. (A), (b), (c), (d) is a figure which shows 3rd Embodiment of the manufacturing process of the viscoelastic body damper stopper which concerns on this invention. (A), (b), (c), (d) is a figure which shows 4th Embodiment of the manufacturing process of the viscoelastic body damper stopper which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Viscoelastic body damper stopper, 5 ... Bridge pier (1st structure), 7 ... Abutment (1st structure), 9 ... Bridge girder (2nd structure), 15 ... Stopper main body, 17 ... Cup part , 21 ... buffer section, 21a ... first viscoelastic layer, 21b ... second viscoelastic layer, 21c ... intermediate layer, 33, 35, 37 ... partition plate, 39 ... viscoelastic body block, 41 ... air bag.

Claims (8)

In a viscoelastic damper stopper that connects the first structure and the second structure and restricts relative displacement between the first structure and the second structure,
A cup portion fixed to the first structure and opening to the second structure side;
A stopper body fixed to the second structure, extending to the first structure side and inserted inside the cup portion;
A buffer portion provided to fill a gap between the inner wall of the cup portion and the stopper body,
In the buffer part,
A first and second viscoelastic layer made of a viscoelastic body, and an intermediate layer made of a material different from the viscoelastic body provided between the first viscoelastic layer and the second viscoelastic layer; Is formed in a laminated portion laminated in the extending direction of the stopper body ,
The viscoelastic body forming the first and second viscoelastic layers is:
When the stopper body tries to move at a high speed relative to the cup part, it behaves as an elastic body and hinders the movement of the stopper body,
The viscoelastic damper stopper, wherein the stopper main body behaves as a highly viscous liquid when the stopper main body tries to move at a low speed with respect to the cup portion and allows the stopper main body to move . The first structure is one of a bridge girder or a support structure that supports the bridge girder,
The second structure is the other of the bridge girder or the support structure;
The viscoelastic damper stopper according to claim 1, wherein the support structure is a pier or an abutment. The intermediate layer is
The viscoelastic damper stopper according to claim 1 or 2 , comprising a material exhibiting lower elasticity and / or lower viscosity than the viscoelastic body. The intermediate layer is
The viscoelastic damper stopper according to any one of claims 1 to 3, wherein the viscoelastic body is made of a material having a specific gravity different from that of the viscoelastic body. It is a manufacturing method of the viscoelastic body damper stopper according to claim 4 ,
A charging step of charging the viscoelastic body and the material of the intermediate layer into the cup part in a liquid state;
The manufacturing method of the viscoelastic body damper stopper characterized by including the buffer part preparation process which has the isolation | separation process which isolate | separates the said viscoelastic body and the material of the said intermediate | middle layer into a layer form by specific gravity difference. It is a manufacturing method of the viscoelastic body damper stopper according to any one of claims 1 to 4 ,
A first layer producing step of producing the first viscoelastic layer in the cup part;
An intermediate layer manufacturing step of arranging a partition on the manufactured first viscoelastic layer and manufacturing the intermediate layer on the partition;
And a second layer manufacturing step of arranging a partition on the manufactured intermediate layer and manufacturing the second viscoelastic layer on the partition. Manufacturing method of elastic damper stopper. It is a manufacturing method of the viscoelastic body damper stopper according to any one of claims 1 to 4 ,
A first layer producing step of producing the first viscoelastic layer in the cup part;
An intermediate layer manufacturing step for preparing the intermediate layer by disposing a block made of the material of the intermediate layer on the manufactured first viscoelastic layer. To manufacture a viscoelastic damper stopper. It is a manufacturing method of the viscoelastic body damper stopper according to any one of claims 1 to 4 ,
A first layer producing step of producing the first viscoelastic layer in the cup part;
An intermediate layer manufacturing step of disposing a bag filled with the material of the intermediate layer on the manufactured first viscoelastic layer to prepare the intermediate layer, A method for producing a viscoelastic damper stopper.

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