JP2016084920A - Damping damper for structures - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seismic base isolator damper for a structure in which the seismic base isolator damper has a simple structure, its manufacturing can be carried out by an exclusive die, vulcanization adhering for elastic rubber, a lead or tin cylindrical member, its press fitting are facilitated and requisite seismic energy absorbing performance is included.SOLUTION: This invention comprises a cylindrical member fixed to one structure that is relatively displaced at the time of occurrence of an earthquake and a rod member fixed to the other structure, extending from an opening of the cylindrical member into the inside of it and arranged to enable relative displacement to be carried out between it and the cylindrical member. The cylindrical member is constituted by a plurality of unit cylindrical bodies, at least one outer peripheral part in a ring-like elastic plastic rubber formed with hole for inserting and passing the rod member in the inner wall for every unit cylindrical body, lead or tin, elastic plastic rubber and lead or tin seismic energy absorbing member is fixed, the plurality of unit cylindrical bodies are integrally connected to form a cylindrical member, and a relative displacement between the cylindrical member and the rod member at the time of occurrence of an earthquake is acted on the seismic energy absorbing member to absorb the seismic energy..SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vibration damper for a structure that suppresses vibrations of structures such as buildings and bridges during an earthquake.

  Oil dampers, air dampers, viscoelastic dampers, and elastic rubber dampers are known as damping dampers for structures.

Japanese Patent No. 2541073 Japanese Patent No. 2568833

  Oil dampers and air dampers have the advantage that they are not temperature dependent, have excellent energy absorption at high speeds, and are resistant to repeated deformation, but have low performance at low speeds, require tightness, and liquid leakage occurs. There is a problem that it is easy to do. Oil dampers and air dampers are sealed and slidable with a sealant between the inner periphery of the hole in the lid on the cylinder tip and the outer periphery of the rod to seal the inside of the cylinder. . Rust is likely to occur on the outer periphery of the piston rod exposed outside the damper due to outside air. If the surface of the outer periphery of the rod becomes uneven, the sealing material that plays the role of sealing and sliding is easily scraped and damaged by the unevenness of the outer periphery of the rod. As a result, the sealability of the damper is lost. In order to remove this obstacle, the conventional damper has a problem that maintenance for periodically removing rust on the outer periphery of the rod is required.

  A damping damper having a vibration absorbing function by deformation of an elastic body such as a viscoelastic damper has an advantage that the structure is simple and maintenance is easy. A damper by elastic-plastic deformation of an elastic-plastic rubber has the advantage that its performance can be changed by changing the rubber composition, and it is resistant to repeated deformation.

  However, in order to improve the energy absorption efficiency by the elastic rubber, it is necessary to increase the length of the cylindrical member and also increase the length of the elastic-plastic rubber fixed to the inner wall of the cylindrical member. Vulcanization adhesion is performed in order to fix the long elastic-plastic rubber to the inner wall of the cylindrical member, but there arises a problem that the adhesiveness between the elastic rubber and the cylindrical member varies. In addition, when manufacturing different variations of dampers, there is a problem that a die corresponding to each size is required.

  The present invention solves the problems of the prior art, has a simple structure, can be manufactured with a dedicated mold, is easy to vulcanize and press-fit elastoplastic rubber, lead or tin to a cylindrical member, and is necessary An object of the present invention is to provide a vibration damper for a structure capable of manufacturing a vibration damper having the seismic energy absorption performance.

In order to solve the above-described problem, the structural vibration damper of the present invention has a cylindrical member fixed to one structure body that is relatively displaced during an earthquake, and is fixed to the other structure body. A rod member that extends inward from the opening and is disposed so as to be relatively displaceable with respect to the cylindrical member, the cylindrical member is configured by a plurality of unit cylindrical bodies, and each unit cylindrical body has its Fixing at least one outer peripheral portion of a ring-shaped elastic rubber formed with a hole through which the rod member is inserted in the inner wall, lead or tin, elastoplastic rubber and seismic energy absorbing material made of lead or tin, and The unit cylindrical bodies are integrally connected to form a cylindrical member, and the relative displacement of the cylindrical member and the rod member during an earthquake is applied to the earthquake energy absorbing material to absorb the earthquake energy.

  Further, the structure damping damper of the present invention allows the rod member to be inserted into the inner wall of the ring-shaped seismic energy absorber disposed in the unit cylindrical body, and absorbs the seismic energy from the relative displacement during the earthquake. It is characterized by arranging a hollow pipe that transmits to the material.

  The structural vibration damper of the present invention is characterized in that a cylindrical member is formed by connecting unit cylindrical bodies in which different types of seismic energy absorbing materials are arranged.

  Moreover, the structural vibration damper of the present invention is characterized in that the hardness of the elastic-plastic rubber as the seismic energy absorber disposed in the unit cylindrical body is set to be different as required.

  Moreover, the vibration damper for a structure of the present invention is characterized in that the elastic-plastic rubber disposed in the unit cylindrical body has a multilayer laminated structure through a partition pipe.

  The structural vibration damper of the present invention is characterized in that the elastic-plastic rubber is disposed on the inner wall of the unit cylindrical body by vulcanization adhesion.

  Further, the structural vibration damper of the present invention is arranged by pressing the lead or tin into at least one of an annular groove formed on the inner wall of the unit cylindrical body and an annular groove formed on the outer wall of the hollow pipe. It is characterized by doing.

  Further, the vibration damper for a structure of the present invention is configured such that the lead or tin is inserted into the hollow pipe as a ring shape, and a displacement transmission plate in contact with both sides of the ring-shaped lead or tin in the relative displacement direction is inserted into the hollow pipe. It is fixed and arrange | positioned at the feature.

  Moreover, the vibration damper for a structure of the present invention is characterized in that the displacement transmission plate is formed of a metal or a resin whose degree of deformation due to stress is similar to that of the lead or tin.

  Further, the structural damper of the present invention includes the rod member inserted into a cylindrical member configured by connecting a plurality of unit cylindrical bodies on which the seismic energy absorbing material is disposed, and the rod member is externally threaded. A nut is screwed to both ends of the rod member via a pressing plate contacting the end surface of the hollow pipe, and the end surface of the hollow pipe of the unit cylindrical body located at both ends of the cylindrical member is the pressing plate. A plurality of cylindrical bodies are integrated by pressure contact with each other, and a relative displacement during an earthquake is transmitted to the seismic energy absorber.

  Further, in the vibration damper for a structure of the present invention, a perforated plate that is in contact with an end surface of a unit cylindrical body located at both ends of the cylindrical member is disposed, and tie rods are provided in a plurality of holes formed in the perforated plate. A plurality of unit cylindrical bodies are integrated by inserting and screwing nuts to both ends of the tie rod and tightening them.

  Further, the structural vibration damper of the present invention includes a connecting pipe having male threads formed at both ends on the outer periphery of the cylindrical member, and the connecting pipe is screwed to a connecting ring disposed at both ends of the cylindrical member. Alternatively, the plurality of unit cylindrical bodies are integrated by caulking.

Further, the vibration damper for a structure according to the present invention connects a cylinder member whose one end is closed and sealed with fluid to one of the perforated plates or one of the connecting rings, and is connected to the rod member positioned on the cylinder member. A valve body in which a small hole is formed is arranged.

A cylindrical member fixed to one structure that is relatively displaced in the event of an earthquake, and fixed to the other structure, extends inward from the opening of the cylindrical member, and is disposed so as to be relatively displaceable with the cylindrical member A ring-shaped elastic rubber comprising a plurality of unit cylindrical bodies, and a hole through which the rod member is inserted is formed on each inner wall of each unit cylindrical body. Alternatively, at least one outer peripheral portion of a seismic energy absorber made of tin, elastic-plastic rubber and lead or tin is fixed, and the plurality of unit cylindrical bodies are integrally connected to form a cylindrical member, and the cylindrical member And the rod member acts on the seismic energy absorber by acting the relative displacement during the earthquake on the seismic energy absorber, so that a short unit cylindrical body can be manufactured with a special mold. To produce dampers with little variation The ability. Further, the arrangement of the seismic energy absorbing material on the short unit cylindrical body can be made extremely easy as compared with the long cylindrical member. Since the unit cylindrical body in which the seismic energy absorbing material is arranged is unitized, it is possible to easily manufacture a damper of a variation as required at low cost.
The rod member can be inserted into the inner wall of the ring-shaped seismic energy absorber disposed in the unit cylindrical body, and the rod member is arranged to transmit the relative displacement during the earthquake to the seismic energy absorber. Relative movement is ensured, and the relative displacement during the earthquake can be reliably transmitted to the seismic energy absorber.
By connecting the unit cylinders with different types of seismic energy absorbers to form a cylindrical member, the unit cylinders with the seismic energy absorbers are unitized, so elasticity is required for rigidity Different types of dampers can be combined depending on the function required, such as a rubber damper and a lead damper that requires damping.
By setting the hardness of the elastoplastic rubber as the seismic energy absorber arranged in the unit cylindrical body to be different as necessary, the deformation shapes of the multilayer elastic rubbers are made close to each other, and the hollow pipe It is possible to prevent the vulcanized adhesive part from being peeled off from the elastic-plastic rubber.
By making the elastoplastic rubber arranged in the unit cylindrical body into a multi-layer laminated structure through the partition pipe, it becomes possible to reduce the strain amount of the elastoplastic rubber due to a large displacement.
By placing elastoplastic rubber on the inner wall of the unit cylindrical body and the partition pipe by vulcanization adhesion, the length of the unit cylindrical body is short, so it is easy to carry into the pressure cooker for vulcanization adhesion Uneven vulcanization adhesion is possible.
Lead or tin is pressed into at least one of the annular groove formed on the inner wall of the unit cylindrical body and the annular groove formed on the outer wall of the hollow pipe, so that the length of the unit cylindrical body is short. It is easy to press-fit the tin into the annular groove by pressing, and lead or tin can be securely fixed.
By inserting lead or tin in a ring shape into the hollow pipe and disposing a displacement transmission plate in contact with both sides of the ring-shaped lead or tin in the relative displacement direction to the hollow pipe, the displacement at the time of the earthquake can be reduced. It is possible to reliably transmit to lead or tin through a displacement transmission plate fixed to the hollow pipe and absorb seismic energy.
By forming the displacement transmission plate with metal or resin whose degree of deformation due to stress is the same as that of lead or tin, the shape of deformation due to repeated deformation of lead or tin is made almost the same to maintain stable seismic energy absorption performance. It becomes possible.
The rod member is inserted into a cylindrical member configured by connecting a plurality of unit cylindrical bodies on which seismic energy absorbers are arranged, male threads are formed on the rod member, and the hollow pipe is formed at both ends of the rod member. A nut is screwed through a pressing plate in contact with the end face, and the end faces of the hollow pipes of the unit cylindrical body located at both ends of the cylindrical member are pressed into contact with the pressing plate to integrate a plurality of cylindrical bodies. By transmitting the relative displacement during an earthquake to the seismic energy absorber, it is possible to easily connect and integrate a plurality of unit cylindrical bodies and reliably transmit the displacement during an earthquake to the seismic energy absorber. Become.
A perforated plate that is in contact with the end face of the unit cylindrical body located at both ends of the cylindrical member is arranged, tie rods are inserted into a plurality of holes formed in the perforated plate, and nuts are screwed onto both ends of the tie rod and tightened. By integrating the plurality of unit cylindrical bodies by raising, it becomes possible to more firmly integrate the plurality of unit cylindrical bodies.
A plurality of unit cylindrical bodies are integrated by fitting and inserting a connection pipe having male threads at both ends on the outer periphery of the cylindrical member, and screwing or caulking the connection pipe to a connection ring disposed at both ends of the cylindrical member. It becomes possible to integrate a plurality of unit cylindrical bodies more firmly.
By connecting a cylinder member whose one end is closed and sealed with fluid to one of the perforated plates or one of the connection rings, a valve body in which a small hole is formed in the rod member located in the cylinder member is disposed. It is possible to easily combine a fluid pressure damper having no dependency, excellent energy absorption at high speed, and strong against repeated deformation, and can perform an impact mitigation function during an earthquake.

It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention. (A) (b) (c) It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. (A) (b) It is a figure which shows embodiment of this invention. It is a figure which shows embodiment of this invention.

  An embodiment of a structural vibration damper of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an embodiment of a structure damping damper.

  The structure damping damper 1 includes a cylindrical member 2 connected to one structure of a structure such as a building or a bridge, and a rod member 3 connected to the other structure. The rod member 3 extends from the opening of the tubular member 2 to the inside thereof, and is disposed so as to be relatively displaceable with respect to the tubular member 2.

  The cylindrical member 2 is configured by connecting a plurality of unit cylindrical bodies 4. Since the unit cylindrical body 4 is formed as a member having a circular cross section, the same diameter, and the same length, the unit cylindrical body 4 can be formed with a dedicated mold and can be manufactured at a low cost.

  FIGS. 2A and 2B are views showing an embodiment in which a ring-shaped elastic rubber 5 as a seismic energy absorbing material is arranged inside the unit cylindrical body 4. A hollow pipe 6 is inserted into the unit cylindrical body 4 inside the ring-shaped elastic-plastic rubber 5 and the ring-shaped elastic rubber 5, and the unit cylindrical body 4, the elastic-plastic rubber 5, and the hollow pipe 6 are integrated by vulcanization adhesion. Turn into. The hollow pipe 6 has a function of transmitting the relative displacement due to the earthquake to the earthquake energy absorbing material, a function of suppressing the deformation of the earthquake energy absorbing material inward due to the earthquake, and a function of ensuring the relative displacement of the rod member 3.

  The hardness of the elastoplastic rubber 5 may be set differently depending on the combination with the unit cylindrical body 4 on which another seismic energy absorbing material is arranged. When a high damping rubber is used as the elastoplastic rubber 5, the absorption efficiency of seismic energy is improved. The displacement during the earthquake is transmitted to the elastic-plastic rubber 5 through the hollow pipe 6, and the elastic-plastic rubber 5 is elastic-plastically deformed to absorb the earthquake energy.

FIGS. 3A and 3B are views showing an embodiment in which ring-shaped lead or tin 7 as an energy absorbing material is arranged inside the unit cylindrical body 4. When the ring-shaped lead or tin 7 is arranged on the unit cylindrical body 4, flange portions 4 a extending radially inward are formed at both ends of the unit cylindrical body 4, and a container structure surrounding the lead or tin 7 is formed. On the outer periphery of the hollow pipe 6 in contact with the inner periphery of the ring-shaped lead or tin 7, there is a ring-shaped displacement transmission plate 6 a extending outward in the radial direction in contact with both end faces in the relative displacement direction of the ring-shaped lead or tin 7. Fixed. The displacement transmission plate 6a is fixed to the hollow pipe 6 by means such as welding or fitting into an annular groove formed in the hollow pipe 6. The displacement at the time of earthquake is transmitted to the lead or tin 7 from the displacement transmission plate 6a fixed to the hollow pipe 6, and the lead or tin 7 is sheared to absorb the seismic energy. By forming the displacement transmission plate 6a with a metal or resin having the same degree of deformation as that of lead or tin, the shape of deformation due to repeated deformation of lead or tin can be made substantially the same to maintain stable seismic energy absorption performance. It becomes possible.

  FIG. 4 is a view showing an embodiment in which a ring-shaped elastic-plastic rubber 5 and a ring-shaped lead or tin 7 as a seismic energy absorber are arranged inside the unit tubular body 4. The ring-shaped lead or tin 7 is press-fitted into an annular groove 4b formed on the inner wall of the unit cylindrical body 4, and the elastic-plastic rubber 5 is arranged by vulcanization adhesion. A hollow pipe 6 is disposed inside the ring-shaped elastic-plastic rubber 5 and the ring-shaped lead or tin 7. On the outer periphery of the hollow pipe 6 in contact with the inner periphery of the ring-shaped lead or tin 7, there is a ring-shaped displacement transmission plate 6 a extending outward in the radial direction in contact with both end faces in the relative displacement direction of the ring-shaped lead or tin 7. Fixed. The displacement transmission plate 6a is fixed to the hollow pipe 6 by means such as welding or fitting into an annular groove formed in the hollow pipe 6. The displacement at the time of earthquake is transmitted to the lead or tin 7 from the displacement transmission plate 6a fixed to the hollow pipe 6, and the lead or tin 7 is sheared to absorb the seismic energy. By forming the displacement transmission plate 6a with a metal or resin having the same degree of deformation as that of lead or tin, the shape of deformation due to repeated deformation of lead or tin can be made substantially the same to maintain stable seismic energy absorption performance. It becomes possible.

  FIG. 5 is a view showing another embodiment in which a ring-shaped elastic-plastic rubber 5 as an energy absorbing material and a ring-shaped lead or tin 7 are arranged inside the unit tubular body 4. In this embodiment, ring-shaped lead or tin 7 is disposed by being press-fitted into an annular groove 6 b formed on the outer wall of the hollow pipe 6, and the elastic-plastic rubber 5 is composed of the inner wall of the unit cylindrical body 4 and the outer wall of the hollow pipe 6. It is arranged by vulcanization adhesion. The relative displacement at the time of the earthquake is transmitted through the hollow pipe 6 to the elastic pipe 5 vulcanized and bonded to the hollow pipe 6 and to lead or tin 7 press-fitted into the annular groove 6b formed in the outer wall of the hollow pipe 6, Absorbs seismic energy. You may press-fit and arrange | position lead or tin 7 in both the annular groove 4b formed in the inner wall of the unit cylindrical body 4, and the annular groove 6b formed in the outer wall of the hollow pipe 6. The displacement at the time of earthquake is transmitted to lead or tin 7 through an annular groove 6b formed in the outer wall of the hollow pipe 6, and the lead or tin 7 is deformed by shear to absorb the seismic energy.

  FIGS. 6A, 6 </ b> B, and 6 </ b> C are views showing another embodiment in which an elastic-plastic rubber 5 as an energy absorbing material and lead or tin 7 are arranged inside the unit cylindrical body 4. In this embodiment, the ring-shaped lead or tin 7 is inserted so as to contact the outer periphery of the hollow pipe 6 and not to contact the inner wall of the unit cylindrical body 4. On the outer periphery of the hollow pipe 6 in contact with the inner periphery of the ring-shaped lead or tin 7, there is a ring-shaped displacement transmission plate 6 a extending outward in the radial direction in contact with both end faces in the relative displacement direction of the ring-shaped lead or tin 7. Fixed. The displacement transmission plate 6a is fixed to the hollow pipe 6 by means such as welding or fitting into an annular groove formed in the hollow pipe 6. The displacement at the time of earthquake is transmitted to the lead or tin 7 from the displacement transmission plate 6a fixed to the hollow pipe 6, and the lead or tin 7 is sheared to absorb the seismic energy. As shown in FIG. 6C, the deformation of the displacement transmission plate 6a is made of a metal or resin having the same degree of deformation as that of lead or tin, so that the deformation shape due to repeated deformation of lead or tin is almost the same and stable. It is possible to maintain the seismic energy absorption performance.

FIGS. 7A and 7B are diagrams showing another embodiment in which a ring-shaped elastic-plastic rubber 5 is arranged as an earthquake energy absorbing material inside the unit cylindrical body 4. In this embodiment, a partition pipe 8 is disposed between ring-shaped elastic-plastic rubbers 5 so that the elastic-plastic rubber 5 has a multilayer laminated structure. In the embodiment shown in the figure, the number of partition pipes 8 is one, but a plurality of partition pipes 8 may be arranged. The hollow pipe 6 of the elastoplastic rubber 5 having the multilayer laminated structure is fixed, and the displacement at the time of the earthquake is transmitted to the elastoplastic rubber 5 having the multilayer laminated structure to absorb the seismic energy. By making the elastoplastic rubber 5 into a multi-layered structure, it is possible to adjust the amount of strain due to the earthquake displacement of the elastoplastic rubber 5 and to prevent adhesion peeling between the elastoplastic rubber 5 and the hollow pipe 6. It becomes possible to do.

  FIGS. 8A and 8B are views showing an embodiment in which a plurality of unit cylindrical bodies 4 in which seismic energy absorbers are arranged and unitized are connected and fixed. A plurality of unitized cylindrical bodies 4 are arranged according to the required function. The rod member 3 is inserted into the plurality of unit cylindrical bodies 4 arranged. A male screw 3 a is formed on the outer periphery of the rod member 3. The rod member 2 inserted through the plurality of unit cylindrical bodies 4 is inserted with a pressing plate 9 having an outer diameter in contact with the end face of the hollow pipe 6, and the pressing plate 9 is attached to both sides by nuts 10 screwed to the rod member 2. A plurality of unit cylindrical bodies 4 are integrated by press-contacting the end face of the hollow pipe 6 of the unit cylindrical body 4 located at the position. The relative displacement between the cylindrical member 2 and the rod member 3 is transmitted to the seismic energy absorber through the hollow pipe 6 pressed by the pressing plate 9, and is attenuated by the action of the seismic energy absorber.

  FIGS. 9A and 9B are diagrams showing an embodiment for increasing the number of unit cylindrical bodies 4 to be connected and further strengthening the connection and integration of the plurality of unit cylindrical bodies 4. A perforated plate 11 is disposed on the end surface of the unit cylindrical body 4 located on both sides of the cylindrical member 2 to which the plurality of unit cylindrical bodies 4 are connected. At the center of the perforated plate 11, a plurality of holes 11a that do not interfere with the pressing plate 9 and a plurality of tie rod holes 11b through which the tie rods 12 are inserted are formed. The perforated plate 11 is arranged on the end surface of the unit cylindrical body 4 located on both sides of the cylindrical member 2, the tie rod 12 is inserted into the tie rod hole 11b of the perforated plate 11, and the nuts 13 are screwed to both ends. By tightening, the cylindrical member 2 to which many unit cylindrical bodies 4 are connected can be firmly integrated.

  FIGS. 10A and 10B are diagrams showing another embodiment for increasing the number of unit cylindrical bodies 4 to be connected and further strengthening the connection and integration of a plurality of unit cylindrical bodies 4. is there. A connection that has an inner diameter larger than the outer diameter of the cylindrical member 2 formed by the unit cylindrical bodies 4 connected to each other, and is formed with male screws 14a at the outer peripheral portions at both ends with substantially the same length as the cylindrical member 2. A pipe 14 is prepared. Connecting rings 15 are arranged on both sides of the cylindrical member 2. The connecting ring 15 is formed with a female screw having a small inner diameter screwed with the male screw formed on the unit cylindrical body 4 on both sides of the cylindrical member 2 and a female screw having a large inner diameter screwed with the male screw 14 a of the connecting pipe 14. Yes. By tightening both ends of the connection pipe 14 with the connection ring 15, the cylindrical member 2 to which many unit cylindrical bodies 4 are connected can be firmly integrated.

  FIG. 11 is a diagram showing an embodiment in which dampers having different functions are connected in series. In the embodiment shown in FIG. 11, the embodiment is applied to the embodiment in which the holed plate 11 and the tie rod 12 shown in FIGS. 9A and 9B are firmly integrated, but FIGS. 10A and 10B are applied. The present invention can also be applied to an integrated structure of the connecting pipe 14 and the connecting ring 15 shown.

  A cylinder member 16, which is disposed at one end of the cylindrical member 2 and is previously closed on the perforated plate 11, is connected to the cylindrical member 2 in a sealed state. A gas such as air or a liquid such as water or oil is enclosed in the sealed space. The rod member 3 positioned on the cylinder member 16 is provided with a valve body 17 that slides on the inner wall of the cylinder member 2 in accordance with relative displacement. The valve body 17 is formed with a small hole 17 a that communicates with the sealed spaces A and B partitioned by the valve body 17.

The position of the valve body 17 is moved by the relative displacement of the tubular member 2 and the rod member 3 during the earthquake, and the fluid sealed from the sealed space where the pressure is increased flows into the sealed space where the pressure is low through the small hole 17a. At that time, the seismic energy is attenuated by the fluid movement resistance by the small holes 17a. In addition, by connecting a damper with a fluid pressure cylinder, it has a function of absorbing a large impact during an earthquake and preventing the damper from being destroyed by a large impact.

  As described above, according to the vibration damper for a structure of the present invention, it is possible to manufacture a short-length unit cylindrical body with a dedicated mold, and to manufacture a damper that is inexpensive and has little variation in quality. Become. Further, the arrangement of the seismic energy absorbing material on the short unit cylindrical body can be made extremely easy as compared with the long cylindrical member. Since the unit cylindrical body in which the seismic energy absorbing material is arranged is unitized, it is possible to easily manufacture a damper of a variation as required at low cost.

  1: Damping damper for structure, 2: cylindrical member, 3: rod member, 3a: male screw, 4: unit cylindrical body, 4a: flange portion, 4b: annular groove, 5: elastic-plastic rubber, 6: hollow Pipe, 6a: displacement transmission plate, 6b: annular groove, 7: lead or tin, 8: partition pipe, 9: pressing plate, 10: nut, 11: perforated plate, 12: tie rod, 13: nut, 14: connection Pipe, 14a: male thread, 15: connecting ring, 16: cylinder member, 17: valve body, 17a: small hole

Claims (13)

A cylindrical member fixed to one structure which is relatively displaced during an earthquake;
A rod member fixed to the other structure, extending inward from the opening of the cylindrical member, and disposed so as to be relatively displaceable with the cylindrical member;
With
The cylindrical member is composed of a plurality of unit cylindrical bodies, and each unit cylindrical body has a ring-shaped elastoplastic rubber, lead or tin, elastoplastic rubber formed with a hole through which the rod member is inserted on the inner wall thereof, and At least one outer peripheral portion of the seismic energy absorber made of lead or tin is fixed, the plurality of unit cylindrical bodies are integrally connected to form a cylindrical member, and the cylindrical member and the rod member are in an earthquake A structure damping damper for absorbing a seismic energy by applying a relative displacement of the seismic energy to the seismic energy absorbing material.   The rod member can be inserted into the inner wall of the ring-shaped seismic energy absorber disposed in the unit cylindrical body, and a hollow pipe that transmits a relative displacement during an earthquake to the seismic energy absorber is disposed. The vibration damper for a structure according to claim 1.   The structural damper according to claim 1 or 2, wherein the cylindrical member is configured by connecting unit cylindrical bodies in which different types of seismic energy absorbing materials are arranged.   The structure according to any one of claims 1 to 3, wherein the hardness of the elastic-plastic rubber as the seismic energy absorber disposed in the unit cylindrical body is set to be different as necessary. Damping damper.   The structure damping damper according to any one of claims 1 to 4, wherein the elastoplastic rubber disposed in the unit cylindrical body has a multilayer laminated structure through a partition pipe.   6. The structural damper according to claim 1, wherein the elastic-plastic rubber is disposed on the unit cylindrical body by vulcanization adhesion.   7. The lead or tin is press-fitted and disposed in at least one of an annular groove formed on the inner wall of the unit cylindrical body and an annular groove formed on the outer wall of the hollow pipe. 2. A vibration damper for a structure according to claim 1.   The lead or tin is inserted into the hollow pipe as a ring shape, and a displacement transmission plate contacting both sides of the ring-shaped lead or tin in the relative displacement direction is fixed to the hollow pipe and elastically plastic in the remaining gap. The structure damping damper according to any one of claims 1 to 6, wherein the rubber is disposed by vulcanization adhesion.   9. The structural vibration damper according to claim 8, wherein the displacement transmission plate is made of a metal or a resin having a degree of deformation caused by stress similar to that of the lead or tin.   The rod member is inserted into a cylindrical member configured by connecting a plurality of unit cylindrical bodies in which the seismic energy absorbing material is arranged, a male screw is formed on the rod member, and the hollow pipe is formed at both ends of the rod member. A nut is screwed through a pressing plate in contact with the end surface of the tube, and the end surfaces of the hollow pipes of the unit cylindrical body located at both ends of the cylindrical member are pressed into contact with the pressing plate to integrate a plurality of cylindrical bodies. The structure damping damper according to any one of claims 1 to 9, wherein a relative displacement during an earthquake is transmitted to the seismic energy absorber. A perforated plate that is in contact with the end surface of the unit cylindrical body located at both ends of the cylindrical member is disposed, tie rods are inserted into a plurality of holes formed in the perforated plate, and nuts are screwed onto both ends of the tie rod. The structural damper according to any one of claims 1 to 10, wherein the plurality of unit cylindrical bodies are integrated by tightening.   A plurality of unit cylindrical bodies are formed by fitting and connecting caulking pipes having male threads at both ends to the outer periphery of the cylindrical member, and screwing or caulking the connecting pipes to connecting rings arranged at both ends of the cylindrical member. The structural damper for a structure according to any one of claims 1 to 10, wherein the damper is integrated.   A cylinder member having one end closed and sealed with fluid is connected to one of the perforated plates or one of the connecting rings, and a valve body having a small hole formed in the rod member located in the cylinder member is disposed. The vibration damper for a structure according to claim 11 or 12.

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