TWI565865B - Mounting structure for laminated rubber body and structure with the mounting structure - Google Patents

Description

Mounting structure of laminated rubber body and structure having the same

The present invention relates to a mounting structure for supporting a building structure and a support for a civil structure.

Supporting and mounting structure of the building structure and the civil structure, in particular, a laminated rubber support used for the seismic isolation structure of the building structure, a vibration-proof structure for the civil structure, and a laminated rubber support for the horizontal force dispersion structure In terms of its construction, it has a large endurance in the compression direction and can support the load of the upper structure, but the endurance in the tensile direction is the endurance which is inferior to the compression direction.

In recent years, the seismic-isolating structure using a laminated rubber body has a wide range of applications for high-rise buildings having a relatively large height and a wide range. Therefore, such a building is likely to float due to a shock or the like during an earthquake, and thus a problem that the tensile force in the vertical direction acts on the laminated rubber support body occurs. Therefore, there is a need for a vibration-proof device that does not exert such a tensile force on a laminated rubber body and a mounting structure thereof.

Therefore, in order to reduce the tensile force in the vertical direction of the laminated rubber body, Patent Document 1 discloses that the coil spring is connected by a mounting bolt. structure. According to this configuration, when a large earthquake occurs, the load for peeling off the laminated rubber support due to the vertical movement is not reduced, and the coil spring or the like is lightened. As a result, it can be used to firmly tighten the horizontal movement and buffer the vertical movement. Secure and secure such a reasonable seismic isolation isolator.

On the other hand, in the known technique, the joint portion between the concave portion and the convex portion is formed by the fitting portion between the concave portion and the convex portion, and the horizontal force accompanying the horizontal vibration during the earthquake is transmitted, but When the tensile force acts on the laminated rubber body due to the upward force or the rotational moment of the laminate generated during the large deformation in the horizontal direction, the fitting portion is separated and the vertical portion is separated. The tensile force in the direction does not act on the vibration-proof device.

For example, if the laminated rubber body and the upper and lower structures are attached by a fixed pin structure, the upper and lower directions can be avoided by the fixed pin structure due to the upward force caused by the oscillation or the like. The separation and the vertical stretching are performed toward the laminated rubber body. In addition, a large horizontal deformation acts on the laminated rubber, and the upper surface of the laminated rubber body and the lower surface are relatively offset in the horizontal direction, and the rotational moment acts on the laminated rubber body even if the tensile force in the vertical direction is generated. In the mounting structure portion of the laminated rubber body, such a tensile force can be avoided by the vertical separation of the joint portion due to the above-described fixed pin structure. Therefore, damage or breakage of the laminated rubber body can be prevented, and an excessive force is not applied to the attachment portion of the upper structure and the laminated rubber body, so that the effect of damage to the upper structure can be prevented.

However, in this type of fitting method, it is deformed at a large level. When the fitting portion is separated in the vertical direction, the tensile force in the vertical direction does not act on the laminated rubber body and the mounting structure portion, but if the degree of separation is too large, the fitting portion may be detached, and the earthquake may not be transmitted. The horizontal force.

Therefore, in consideration of the degree of separation of the fitting portion and the horizontal force transmission, it is necessary to prevent the fitting portion from falling off, and to sufficiently convey the horizontal force, so that, for example, in the above-described fixing pin configuration, it is necessary to lengthen the dowel pin, and In the case of using a shear key, it is necessary to increase the thickness of the shear key.

In consideration of both the separation of the fitting portion and the transmission of the horizontal force, the respective thicknesses of the laminated rubber body in which the fitting portion is disposed and the connecting portion with the upper or lower structure are inevitably large, so that it is provided. The height of the vibration-proof device is increased, and the structure having the vibration-proof device is constructed. For example, when the vibration-proof device is disposed on the foundation portion of the building, it is necessary to deepen the underground pit portion, which may become a burden on the foundation project.

Further, when the height of the laminated rubber body is increased, the molding die used in the production of the laminated rubber body becomes large, and the press device for molding must also use a device having a large width region, and a large stack close to the manufacturing limit. The design of the layer rubber body is often difficult to provide: a device having a fitting portion and having a structure in which a tensile force in a vertical direction is not applied to the laminated rubber body.

As described above, in the case of the fixed pin structure or the shear key structure, a fitting structure in which a concave portion is formed on the side of the laminated rubber body, or a fitting structure in which a convex portion is formed and a concave portion is formed on the object side is used. In consideration of the conveyance of the horizontal force, it is necessary to make the upper and lower surfaces of the laminated rubber body thick, or to form the steel plate on the object side as a thick plate. Although the height of the height is a tensile force in the vertical direction, the laminated rubber body integrally formed with the flange is relatively high in comparison with the structure in which the mounting bolt is locked to the structure.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1]

Japanese Patent Laid-Open No. 10-110551

[Patent Document 2]

Japanese Patent Laid-Open No. 4-221142

[Patent Document 3]

Japanese Patent Publication No. 10-317715

[Patent Document 4]

Japanese Patent Publication No. 9-256319

As a specific example of the above-described fixed pin structure, the mounting structure of the vibration-isolating support device disclosed in Patent Document 2 includes upper and lower mounting plates for attaching to the upper and lower structures, and the upper and lower mounting plates are integrally provided with a plurality of fixed plates. The stud pin is provided with an engaging hole that engages with the above-mentioned fixed pin in the thick steel plate at the upper end and the lower end of the laminated rubber body. With this configuration, when an external factor such as an earthquake acts, the vibration-isolating device has an effect of transmitting horizontal force and no tensile force in the vertical direction, at the upper and lower ends of the laminated rubber body, Engagement hole for fitting with a dowel pin For use, thick-walled steel sheets must be used, and it is difficult to suppress the height dimension of the vibration-proof device to a low level.

As a specific example of the above-described shearing key, the vibration-absorbing apparatus disclosed in Patent Document 3 does not lose vibration-proof even when a large tensile force acts in the vertical direction by forming a mounting structure using a shear key. Function, the vibration-free mechanism provided can be applied to super high-rise buildings or structures with very high aspect ratio. According to this technique, the horizontal force caused by the relative displacement in the horizontal direction is transmitted, and the relative displacement in the vertical direction can be allowed, so that it is possible to obtain an excessively large tensile force in the vertical direction. Effect. However, in the shock-absorbing device, it is also necessary to provide an engaging hole for engaging with the shear key at the upper and lower ends of the laminated rubber body, and it is necessary to use a thick-walled steel plate, and it is difficult to suppress the height dimension of the vibration-proof device. It is lower.

Further, in the structure disclosed in Patent Document 4, the mounting structure suitable for the case where the height of the rubber support is kept low is that the upper rigid plate and the lower rigid plate of the rubber support are integrally formed with the convex portion. It is used to fit into a recess formed in the upper fixing plate and the lower fixing plate. With this configuration, in addition to lowering the height of the device, and even if a floating phenomenon occurs due to vibration of the building during an earthquake, even if the rotational moment of the rubber support body is generated by a large deformation in the horizontal direction The stretching force acts on the rubber support, and the separation of the fitting portion prevents damage or breakage of the rubber support, and does not exert excessive force on the mounting portion of the upper structure and the laminated rubber body. The effectiveness prevents damage to the superstructure.

However, the configuration of Patent Document 4 is provided by directly arranging the fitting portion at The upper structure and the lower structure side suppress the height of the device to be low, and the separation force of the fitting portion can preferably reduce the tensile force in the vertical direction of the rubber support, and the rubber portion of the rubber support is generated. In the case of a bad condition such as aging, or the need for inspection, when the rubber support is taken out from the construction site, the upper structure is lifted up by the jack or the like not only by the fitting depth of the fitting portion on the upper side. It is also necessary to lift the rubber support body upward by the fitting portion on the lower side, and the problem is that the removal operation of the rubber support or the subsequent installation work becomes very complicated.

When the laminated rubber of the structure disclosed in Patent Document 2 and Patent Document 3 is to be replaced, the upper structure having the height of the fitting portion needs to be lifted. Therefore, the fitting portion on the side of the rubber body is laminated and fitted. The object side members to which the members are connected generally work together with the extracting device. For example, in Patent Document 2, in order to take out the apparatus together with the upper and lower mounting plates, Patent Document 3 is an operation of taking out the apparatus integrally with the upper plate and the lower plate.

Therefore, in the case of using the mounting structure having the fitting portion, in order to replace the laminated rubber body with a small amount of lifting of the jack, it is necessary to mount the fitting member and the laminated rubber body. In addition to the thickness required to prevent the fitting portion from being pulled out, it is also difficult to lower the height of the entire apparatus.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a mounting structure of a laminated rubber body, etc., such that the tensile force in the vertical direction does not act on the laminated rubber body, and the height of the laminated rubber body can be increased. The suppression is low, and the deterioration of the laminated rubber body generation time needs to be replaced. When working, it can also be replaced with a small amount of lift.

In order to achieve the above object, in the present invention, a laminated rubber body is interposed between an upper structure body and a lower structure body, and the laminated rubber body is formed by vertically laminating a rubber portion of a rubber layer and a reinforcing plate. The end surface is joined to: a flange plate having a larger planar shape than the laminated rubber portion and having an extending portion extending outward from an outer edge of the laminated rubber portion; and the laminated rubber body is attached to the upper structure The mounting structure of the laminated rubber body of the body and the lower structure includes: an upper anchor plate fixed to a lower surface of the upper structure, a lower anchor plate fixed to an upper surface of the lower structure, and the upper anchor The plate or the lower anchor plate is combined, and the horizontal force caused by the relative displacement in the horizontal direction is transmitted to each of the extending portions of the flange plate of the laminated rubber body, and the relative displacement in the vertical direction is not transmitted. The snap member of the vertical direction of force.

In the present invention, the laminated rubber body is interposed between the upper structure and the lower structure, and the laminated rubber body is formed by joining the upper end faces of the laminated rubber portions in which the rubber layer and the reinforcing plate are alternately laminated, and is joined: a flange plate having a larger planar shape and having an extending portion extending outward from an outer edge of the laminated rubber portion; and a laminated rubber body in which the laminated rubber body is attached to the upper structure The mounting structure is provided with an anchor plate fixed to the lower surface of the upper structure and a card that is combined with the anchor plate, and conveys a relative displacement in the horizontal direction with respect to the extending portion of the flange plate of the laminated rubber body. The horizontal force caused, and does not convey the relative displacement of the vertical direction A snap member that acts as a force in the vertical direction.

In the present invention, the laminated rubber body is interposed between the upper structure and the lower structure, and the laminated rubber body is formed by joining the lower end faces of the laminated rubber portion in which the rubber layer and the reinforcing plate are alternately laminated, and is joined: a flange plate having a larger planar shape and having an extending portion extending outward from an outer edge of the laminated rubber portion; and a laminated rubber body in which the laminated rubber body is attached to the lower structure The mounting structure is provided with an anchor plate fixed to the upper surface of the lower structure and a card that is combined with the anchor plate, and conveys a relative displacement in the horizontal direction with respect to the extending portion of the flange plate of the laminated rubber body. The horizontal force generated, and does not convey the engaging member of the vertical direction caused by the relative displacement in the vertical direction.

According to each of the above inventions, the horizontal force caused by the relative displacement in the horizontal direction is transmitted, and the force in the vertical direction caused by the relative displacement in the vertical direction is not allowed, and the laminated member is laminated by the engaging member. The rubber body is joined to the upper structure or/and the lower structure, and the rotational moment caused when the laminated rubber body is deformed to a large extent causes the tensile force toward the end of the laminated rubber body, and the laminated rubber The upper side or/and the lower flange plate of the body, the abutting surface of the upper side or/and the lower anchor plate disposed on the upper structure or/and the lower structure can be separated, so that the flange around the end of the rubber body is laminated The plate can be deflected upwards or/and below, and the laminated rubber body, especially the rubber layer, and the adhesive layer joining the rubber layer and the reinforcing plate do not have an excessive tensile force in the vertical direction. Therefore, it is possible to appropriately prevent the possibility of damage or breakage of the laminated rubber body.

According to the above inventions, the relative displacement of the horizontal direction is cited. The horizontal force is not allowed to be transmitted in the vertical direction due to the relative displacement in the vertical direction, and the laminated rubber body is joined to the upper structure or/and the lower structure by the engaging member, so even The upper structure is caused to float due to the oscillation, and the upper flange plate of the laminated rubber body, the abutting surface of the upper anchor plate disposed on the lower surface of the upper structure, or/and the lower flange are disposed. The abutting surface of the upper anchor plate of the lower structure and the lower structure can be separated in a vertical direction by the shock, so that the vertical force is not transmitted, and the laminated rubber body does not Since the tensile force in the vertical direction is excessively large, the possibility of damage or breakage of the laminated rubber body can be appropriately prevented.

In the mounting structure of the laminated rubber body, the engaging member is a columnar shear key, and one side of the shear key can be inserted into a hole provided at an extending portion of the flange plate, and The other side is inserted into a hole or recess provided at the above anchor plate. By using the columnar shear key, in addition to the horizontal force can be transmitted, and the force generated in the vertical direction is not transmitted between the flange plate and the anchor plate, since only the shear key is inserted into the flange plate The hole portion is provided, so when the laminated rubber body is to be replaced, the shear key can be simply taken out without any restriction member in the horizontal direction, so in a conventional manner, if the thickness portion of the shear key is not the lowest When the amount of lift is increased, the laminated rubber body cannot be taken out in the horizontal direction. Therefore, the replacement of the laminated rubber body at the construction site is troublesome, and in the present invention, the lift amount can be simply increased by a small amount of the lifter. Conducted.

In the mounting structure of the laminated rubber body, one side of the shear key may be fixed to the extending portion of the flange plate, or the other end side may be detachable. The ground is fixed to the anchor plate. Thereby, the procedure for removing the shear key is easy in the replacement work of the laminated rubber body. As a specific structure, one side of the shear key is formed into a shape of a belt edge portion, and the edge portion may be bolted to a periphery of a shear key insertion hole provided in an extension portion of the flange plate. The shear key insertion hole provided in the extending portion of the flange plate can be formed as a through hole, and the female thread can be processed. When the thickness of the flange plate of the shear key is in the range of thickness, the thread can be threaded and fixed to the screw. On the side of the flange plate, the shear key insertion hole provided in the anchor plate may not be formed as an insertion hole, and the female thread processing may be performed, and the male thread processing is performed on the thickness range of the anchor plate of the shear key to be screwed and fixed. On the side of the anchor plate.

Further, in the mounting structure of the laminated rubber body, the engaging member is a flat shear key, and the flat shear key is inserted into the shear key insertion groove, and the shear key insertion groove is provided as follows: a groove extending from the outer edge of the surface of the flange plate facing the anchor plate in the center direction, and an outer edge of the surface of the anchor plate facing the flange plate The grooves extending in the center direction face each other.

The present invention is a structure in which the laminated rubber body of the above-described one is used. According to the present invention, the vibration-isolating structure can be formed as a structure using a mounting structure of a laminated rubber body, and the structure of the laminated rubber body can be easily removed from the outside of the laminated rubber body after the construction. The lower shearing key can prevent the height of the vibration-proof device disposed in the seismic-free layer from being lowered, because of the floating of the seismic-isolating structure or the large horizontal deformation of the laminated rubber body. The resulting rotational moment causes the vertical direction of the laminated rubber body to be generated by the floating of the end portion of the laminated rubber body. In addition, the work of removing the laminated rubber body can be performed in a state where the amount of lifting of the jack is small, so that the cost of laminating the rubber body can be reduced, and the soundness of the laminated rubber body can be improved, and It has the effect of greatly reducing the construction cost of the seismic isolation structure and the procedure or cost of replacing the work.

As described above, according to the present invention, it is possible to provide a laminated rubber body mounting structure and the like, and it is possible to control the height of the laminated rubber body to a low level and prevent the tensile force in the vertical direction from acting on the laminated rubber body. The replacement of the laminated rubber body is performed with a small amount of lifting of the jack.

1‧‧‧Installation structure

2‧‧‧Upper structure

2a‧‧‧ below

3‧‧‧Lower structure

3a‧‧‧above

4‧‧‧ laminated rubber department

4a‧‧‧Rubber layer

4b‧‧‧ reinforcing plate

4c‧‧‧ upper end

4d‧‧‧ lower end

6 (6A, 6B) ‧‧‧Flange plate

6A’‧‧‧through holes

6B’‧‧‧ Hole Department

6B”‧‧‧Bolt hole

6a‧‧‧Extension

8‧‧‧Laminated rubber body

10 (10A, 10B) ‧‧‧ anchor plate

10A’‧‧‧ Female thread

10B’‧‧‧ Hole Department

12‧‧‧ shear key

13‧‧‧ Hole Department

14‧‧‧Back cover

15‧‧‧Weld Department

16‧‧‧ cover

17‧‧‧Band fixing bolts

21‧‧‧Headed column bolt

32‧‧‧Shear key with edge

37‧‧‧Shear key fixing bolt

42‧‧‧ shear button

42a‧‧‧ Male thread

42b‧‧‧ lower

46‧‧‧Bolt holes

47‧‧‧ Hole Department

48‧‧‧ shear button

48a‧‧‧ Male thread

48b‧‧‧ cylindrical part

48c‧‧‧ hexagonal hole

54‧‧‧ laminated rubber department

54a‧‧‧Rubber layer

54b‧‧‧ reinforcing plate

55 (55A, 55B) ‧ ‧ joint steel plate

56 (56A, 56B) ‧‧‧Flange plate

56a‧‧‧Extension

57‧‧‧Bolts

58‧‧‧Laminated rubber body

61‧‧‧Installation structure

63‧‧‧Lower structure

64‧‧‧ laminated rubber department

66 (66A, 66B) ‧‧‧Flange plate

66a‧‧‧Extension

68‧‧‧Laminated rubber body

70 (70A, 70B) ‧‧‧ anchor plate

71‧‧‧ shear key insertion groove

71a‧‧ ‧ Groove

71b‧‧‧ Groove

72‧‧‧Headed column bolt

74‧‧‧ shear button

80‧‧‧Hex bolt

80a‧‧‧ Male thread department

80b‧‧‧ head

81‧‧‧Rubber gasket

Fig. 1 is a cross-sectional view showing a first embodiment of a mounting structure of a laminated rubber body of the present invention.

Fig. 2 is an enlarged view of a portion A (mounting structure portion) of the mounting structure shown in Fig. 1.

Fig. 3 is a detailed view for explaining a method of assembling the mounting structure portion shown in Fig. 2 .

Fig. 4 is a detailed view for explaining another example of the assembling method of the mounting structure portion shown in Fig. 2 .

Fig. 5 is a detailed view for explaining another example of the assembling method of the mounting structure portion shown in Fig. 2 .

Fig. 6 is a detailed view for explaining another example of the assembling method of the mounting structure portion shown in Fig. 2 .

Fig. 7 is a schematic view showing a state in which the attachment structure portion is formed when a large horizontal deformation occurs between the upper structure and the lower structure.

Fig. 8 is a schematic view showing a state of the attachment structure portion when the upper structure is floated in the vertical direction.

Fig. 9 is a cross-sectional view showing a second embodiment of the mounting structure of the laminated rubber body of the present invention.

Fig. 10 is an exploded perspective view showing a third embodiment of the mounting structure of the laminated rubber body of the present invention.

Fig. 11 is a cross-sectional view showing a state in which the separation preventing member provided with the engaging portion in the mounting structure of the laminated rubber body of the present invention.

Next, a detailed description will be given with respect to the type reference drawings used to implement the present invention.

1 is a first embodiment showing a mounting structure of a laminated rubber body according to the present invention, and the mounting structure 1 is a laminated rubber body 8 that is interposed between the upper structure 2 and the lower structure 3, and is mounted. The upper structure 2 and the lower structure 3 are provided.

The laminated rubber body 8 is joined to the upper and lower end faces 4c and 4d of the laminated rubber portion 4 in which the rubber layer 4a and the reinforcing plate 4b are alternately laminated, and the flange plates 6 (6A, 6B) are joined to each other, and the rubber layer 4a and the reinforcing layer are reinforced. The contact surface between the plate 4b and the rubber layer 4a and the flange plates 6A and 6B is integrally formed by vulcanization bonding.

The mounting structure 1 includes an upper anchor plate 10A fixed to the lower surface 2a of the upper structure 2, and is fixed to the upper surface 3a of the lower structure 3. The side anchor plate 10B and the extending portion 6a of the flange plate 6 of the laminated rubber body 8 serve as the shear key 12 of the engaging member.

The shear key 12 is formed in a columnar shape (cylindrical shape), and as shown in Fig. 2, is housed in a hole portion 13 which is bored at the upper flange plate 6A and the upper anchor plate 10A, and is formed on the upper flange plate 6A. The lower side is attached by the cover fixing bolt 17 so that the cover 16 covers the opening of the hole portion 13, and the shear key 12 is supported from below. The back cover 14 is fixed to the upper surface of the upper anchor plate 10A by welding (welding portion 15) to prevent concrete intrusion of the upper structure 2 during construction. Here, a gap C is formed between the outer peripheral surface of the shear key 12 and the inner peripheral surface of the hole portion 13, and the shear key 12 is allowed to move in the horizontal direction in the hole portion 13. Further, the size of the gap C is appropriately designed to allow the horizontal force transmission of the shear key 12 in the hole portion 13 to be separated from the upper flange plate 6A and the upper anchor plate 10A.

When the shear key 12 is assembled between, for example, the lower anchor plate 10B and the lower flange plate 6B, as shown in Fig. 3, there is a back cover 14 fixed to close the lower opening of the hole portion 10B', The lower side flange 10B is fixed to the lower anchor plate 10B via the stud bolt 21 so that the hole portion 6B' overlaps the hole portion 10B' of the lower anchor plate 10B, and the lower flange is placed. The plate 6B accommodates the shear key 12 in the hole portion 13 formed by the two hole portions 6B' and 10B'. Then, the cover 16 is disposed to cover the opening of the hole portion 6B', and is fixed to the upper surface of the lower flange plate 6B by the cover fixing bolts 17.

Instead of the above-described shear key 12, as shown in Fig. 4, the shearing key 32 of the belt edge portion is housed in the hole portion 13 formed by the two hole portions 6B', 10B', directly using the shear force key Fixing bolt 37 will shear the edge of the belt It is fixed to the upper surface of the lower flange plate 6B. Also in this case, a gap is formed between the outer peripheral surface of the shear key 32 of the belt edge portion and the inner peripheral surface of the hole portion 13, and the shear key of the belt edge portion is allowed to move in the horizontal direction in the hole portion 13 The size of the gap is designed to be such that horizontal force transmission and separation from the lower flange plate 6B and the lower anchor plate 10B are performed.

Further, as shown in Fig. 5, the hole portion 10B' is bored in the lower anchor plate 10B, and bolt holes 6B" are screwed in the lower flange plate 6B, and the bolt holes 6B" are overlapped on the lower anchor plate 10B. The lower flange plate 6B is placed on the hole portion 10B' of the lower anchor plate 10B, and the lower portion 42b of the shear key 42 is inserted into the hole portion 10B' by screwing the male bolt portion 42a to the bolt hole 6B. Further, the shear key 42 can be attached to the lower flange plate 6B and the lower anchor plate 10B. In this case as well, the outer peripheral portion of the lower portion 42b of the shear key 42 and the inner peripheral surface of the hole portion 10B' can be used. Between the gaps, the lower portion 42b of the shear key 42 is allowed to move in the horizontal direction in the hole portion 10B', and the gap is designed to allow horizontal force transmission, and the lower flange plate 6B and the lower side. The degree of separation of the side anchor plates 10B.

Instead of the above-described shear key 12, as shown in Fig. 6, a bolt hole 46 is screwed in the lower anchor plate 10B, and a hole portion 47 is provided in the lower flange plate 6B, and the hole portion is provided on the lower anchor plate 10B. 47. The lower flange plate 6B is placed so as to overlap the bolt hole 46 of the lower anchor plate 10B, and the male screw portion 48a of the shear key 48 having the hexagonal hole 48c is screwed to the bolt hole 46 of the lower anchor plate 10B. By inserting the cylindrical portion 48b of the shear key 48 having the male screw portion 48a into the hole portion 47 of the lower flange plate 6B, the horizontal force can be transmitted by the shear key 48, and the lower anchor plate 10B and the lower side can be allowed. Flange plate The separation of 6B in the vertical direction. On the outer peripheral surface of the cylindrical portion 48b of the shear key 48 and the inner peripheral surface of the hole portion 47 provided in the lower flange plate 6B, a gap is formed to allow the shear key 48 to be made in the hole portion 47. The movement in the horizontal direction is designed such that the horizontal force can be transmitted and the degree of separation from the lower flange plate 6B and the lower anchor plate 10B can be performed.

When the shear key 12 is used, the lubricating layer is disposed on the columnar side surface, and when the shear key 32 having the edge portion is used, the lubricating layer is disposed on the side surface of the columnar portion, and the shearing force is provided on the side of the columnar portion 42a. In the case of the key 42, the lubricating layer is disposed on the side surface of the lower portion 42b where the threading is not performed, and when the shear key 48 is used, the lubricating layer is disposed on the side surface of the cylindrical portion 48b where the male screw portion 48a is not provided, even at the level The force acting on each of the shear keys 12 and the like can also easily separate the anchor plate 10 from the flange plate 6 in the vertical direction. As the lubricating layer applied to the side surface of the shear key 12 or the like, for example, a film layer containing a rust preventive lubricant containing molybdenum disulfide or a DLC layer is baked. Instead of the lubricating layer disposed on the side surface of the shear key 12 or the like, a resin sheet composed of a fluorinated vinyl resin, a fluorinated vinyl resin to which a filler is added, a polyethylene resin, or the like may be wound around the side surface portion.

Next, the operation of the laminated rubber body 8 attached to the upper structure 2 and the lower structure 3 by the above-described mounting structure 1 will be described in detail with reference to the drawings.

In Fig. 1, when the lower anchor plate 10B is moved in the direction of the arrow X due to an earthquake or the like, the shear key 12, as shown in Fig. 2, conveys the horizontal force caused by the relative displacement in the horizontal direction, and does not It conveys the force in the vertical direction caused by the relative displacement in the vertical direction, so even if the laminated rubber body 8 is produced In the case of a large horizontal deformation, as shown in Fig. 7, the upper side flange plate 6A of the laminated rubber body 8 is caused by the tensile force F toward the end portion of the laminated rubber body 8 caused by the rotational moment caused at this time. It is separated from the abutting surface of the upper anchor plate 10A. Therefore, the upper flange plate 6A around the end portion of the laminated rubber body 8 can be deflected downward, and excessive tensile force in the vertical direction does not act on the laminated rubber body 8, and in particular, it does not act on The adhesive layer of the rubber layer 4a and the rubber layer 4a and the reinforcing plate 4b and the rubber layer 4a and the upper flange plate 6A can prevent damage or breakage of the laminated rubber body 8.

In the first drawing, even if the upper structure 2 is lifted due to the vibration due to an earthquake or the like, as shown in Fig. 8, the upper flange plate 6A of the laminated rubber body 8 and the lower side of the upper structure 2 are disposed. The abutting surface of the upper anchor plate 10A of 2a can be separated to allow vertical displacement due to oscillation, and since the force in the vertical direction is not transmitted, there is no excessive vertical tensile force acting on the stack. The rubber body 8 is layered, and the possibility of damage or breakage of the laminated rubber body 8 can be prevented.

When the shear key 32, the shear key 42, and the shear key 48 with the edge portion shown in Figs. 4, 5, and 6 are used, the same effect as the above-described shear key 12 can be achieved. effect. For example, in the case of using the shear key 42 as shown in Fig. 5, in Fig. 1, when the lower anchor plate 10B is moved in the arrow X direction due to an earthquake or the like, the male thread portion of the shear key 42 is used. 42a is screwed to the bolt hole 6B" of the lower flange plate 6B, so the shear key 42 and the lower flange plate 6B are integrated, and since the lower portion 42b and the lower anchor plate 10B are separable, they are not transmitted. The vertical force caused by the relative displacement in the up and down direction does not have excessive tensile force in the vertical direction. When it acts on the laminated rubber body 8, the possibility of damage or breakage of the laminated rubber body 8 can be prevented.

Next, a second embodiment of the mounting structure of the laminated rubber body of the present invention will be described with reference to FIG.

The laminated rubber body 58 is a so-called bolt-on type, and has a connecting steel plate (reinforcing plate) 55 (55A, 55B) above and below the laminated rubber portion 54 in which the rubber layer 54a and the reinforcing plate 54b are alternately laminated. The flange plates 56 (56A, 56B) attached to the upper structure 2 and the lower structure 3, and the connecting steel plate 55 are tightly coupled by bolts 57.

The operation of attaching the laminated rubber body 58 to the bolt-on-type laminated rubber body 58 to the upper structure 2 and the lower structure 3 is performed by the same method as in the second embodiment, in which the shear key 12 as the engaging member is placed. : between the upper anchor plate 10A and the lower anchor plate 10B and the extending portion 56a of the flange plate 56, the vertical force caused by the relative displacement in the vertical direction is not transmitted to the stack when an earthquake or the like occurs. The rubber body 58 does not have an excessive tensile force in the vertical direction acting on the laminated rubber body 58, and the possibility of damage or breakage of the laminated rubber body 58 can be prevented. In place of the shear key 12, the laminated rubber body 58 may be provided with a shear key 32 and a shear key 42 as shown in Figs. 4 and 5 .

In the first and second embodiments described above, the anchor plate 10 is provided with a through hole such as the hole portion 10B', and the opening is closed by the back cover 14, and the recessed portion may be formed without forming the through hole in the anchor plate 10. The configuration in which the back cover 14 is not used is made.

Next, the third embodiment of the mounting structure of the laminated rubber body of the present invention The manner of application is described with reference to FIG.

This mounting structure 61 is for attaching the laminated rubber body 68 to the lower structure 63 and the upper structure (not shown) located above the upper anchor plate 70A. The upper anchor plate 70A is fixed to the upper structure via the stud bolts 72, and the lower anchor plate 70B is also fixed to the lower structure 63 via a stud bolt (not shown).

The laminated rubber body 68 is provided with a laminated rubber portion 64 having the same structure as that of the laminated rubber portion 4 shown in Fig. 1, and the flange plates 66 (66A, 66B) are joined to the respective upper and lower end faces. The flange plate 66 has a circular shape and is larger than the planar shape of the laminated rubber portion 64 as viewed in a plan view, and has an extending portion 66a that extends outward from the outer edge of the laminated rubber portion 64.

The mounting structure 61 is provided with a shear key insertion groove 71 which is provided in a recess extending from the upper edge of the upper flange plate 66A toward the outer surface of the upper side anchor plate 70A in the center direction. The groove 71a faces the groove 71b extending in the center direction from the outer edge of the upper side anchor plate 70A on the surface side of the upper flange plate 66A. The shear key insertion groove 71 is radially disposed at a plurality of positions from the center position as viewed in plan view from the laminated rubber body 68. A flat shear key 74 is inserted into each of the shear key insertion grooves 71.

A shear key insertion groove 71 composed of the grooves 71a and 71b is also formed between the lower flange plate 66B and the lower anchor plate 70B, and the shear key 74 is inserted into each of the shear key insertion grooves 71.

With this configuration, even if an external factor such as an earthquake acts in any direction, the horizontal force can be transmitted by the shear key insertion groove 71, and even if The upper anchor plate 70A and the lower flange plate 66B are floated in the vertical direction. The flange plate 66 and the anchor plate 70 are detachable, so that the tensile force acting on the laminated rubber body 68 can be prevented.

Although the above-described structure using the flat shear key 74 is employed, the one end portion of the shear key 74 may be rounded and used as the insertion side and the other end. In consideration of the workability at the time of pulling out, the screw hole processing is performed. The lubricating layer can be disposed on the outer surface of the shear key 74, and the separation in the vertical direction can be easily performed. As the lubricating layer, similarly to the shear key 12, a rust preventive lubricant containing molybdenum disulfide can be used. Film layer, or DLC layer. Instead of the lubricating layer, a resin sheet composed of a fluorinated vinyl resin or the like may be wound on the outside of the shear key 74. The flat shear key may be formed such that a plurality of wedge members are used to adjust the size of the shear key, and the gap with the groove can be set to an appropriate value.

In addition, in the above-described first to third embodiments, the extent to which the shearing force of the laminated rubber body 8 or the like is not affected by the tensile force of the laminated rubber body 8 or the like is considered, and the degree of the shearing force of the laminated rubber body 8 or the like is not affected. It is also possible to provide an additional anti-drop member. As the fall prevention member, as shown in Fig. 11, a female screw portion 10A' may be provided on the side of the anchor plate 10A, and a through hole 6A' may be provided at the position of the female screw portion 10A' on the side of the flange plate 6A, using a hexagon bolt. 80 or the like, the hexagon bolt 80 has a male screw portion 80a that is screwed to the female screw portion 10A' from a distal end on one end side of the one end portion, and has a flange plate floating on the other end side. The head 80b abuts at a predetermined amount.

In the hexagon bolts 80, an elastic member such as a rubber spacer 81 may be disposed, and when the anchor plate 10A is floated, the flange plate 6A and the head portion 80b of the hexagon bolt 80 are not directly abutted by the rubber gasket 81. It is possible to prevent the impact when the two 6A and 80b are abutted.

By the use of the above-described mounting structures 1 and 61, after the construction, the vibration-isolating structure can be formed into a structure using the mounting structures 1 and 61 of the laminated rubber body 8 or the like, and the mounting structure of the laminated rubber body 8 or the like can be used. In addition to the fact that the shear key 12 that can be easily removed from the outside of the laminated rubber body 8 or the like can be reduced in height, the height of the vibration-proof device disposed on the vibration-isolating layer can be prevented: When the vibration of the body is caused to rise, the rotational moment generated by the large-scale horizontal deformation of the laminated rubber body 8 or the like causes the end portion of the laminated rubber body 8 to float, and the vertical direction of the laminated rubber body 8 or the like is pulled. In the state in which the amount of the lifter is increased, the laminated rubber body 8 or the like can be removed, and the manufacturing cost of the laminated rubber body 8 or the like can be reduced, and the laminated rubber body 8 or the like can be improved. It is effective, and it is effective in reducing the construction cost of the earthquake-free structure and the procedure or cost of the replacement work.

1‧‧‧Installation structure

2‧‧‧Upper structure

2a‧‧‧ below

3‧‧‧Lower structure

3a‧‧‧above

4‧‧‧ laminated rubber department

4a‧‧‧Rubber layer

4b‧‧‧ reinforcing plate

4c‧‧‧ upper end

4d‧‧‧ lower end

6A, 6B‧‧‧Flange plate

6a‧‧‧Extension

8‧‧‧Laminated rubber body

10A, 10B‧‧‧ anchor plate

12‧‧‧ shear key

21‧‧‧Headed column bolt

Claims (4)

A laminated rubber body mounting structure in which a laminated rubber body is interposed between an upper structure and a lower structure, and the laminated rubber body is formed by laminating a rubber portion of a rubber layer and a reinforcing plate The end faces are respectively joined to: a flat flange plate having a larger planar shape than the laminated rubber portion and having an extending portion extending outward from the outer edge of the laminated rubber portion; and the laminated rubber body is mounted The mounting structure of the laminated rubber body of the upper structure and the lower structure is characterized in that it is provided with a flange plate that is fixed to the lower surface of the upper structure and abuts against the laminated rubber body. a flat upper anchor plate that moves relative to each other in the horizontal direction; the upper surface of the lower structure is fixed to the flange plate of the laminated rubber body and can be horizontally opposed to the flange plate a flat-shaped lower anchor plate that moves relatively; and a card that is combined with the upper anchor plate or the lower anchor plate, and conveys a horizontal displacement relative to each of the extending portions of the flange plate of the laminated rubber body An engaging member that raises a horizontal force and does not transmit a vertical force caused by a relative displacement in a vertical direction; the engaging member is constituted by a columnar shear key, and one side of the shear key is inserted a hole portion provided at an extending portion of the flange plate, the other side of the shear key is inserted into a hole portion or a recess portion provided at the anchor plate, and the entire shear key is received in the flange plate and The shear force in the above anchor plate None of the keys are fixed to either of the flange plate and the anchor plate. A laminated rubber body mounting structure in which a laminated rubber body is interposed between an upper structure body and a lower structure body, the laminated rubber body being formed on a laminated rubber portion in which a rubber layer and a reinforcing plate are alternately laminated The end surface is joined: a flat flange plate having a larger planar shape than the laminated rubber portion and having an extending portion extending outward from the outer edge of the laminated rubber portion; the laminated rubber body is attached to the above The mounting structure of the laminated rubber body of the upper structure is characterized in that it is provided on the lower surface of the upper structure, and is in contact with the flange plate of the laminated rubber body, and is mutually engageable with the flange plate a flat anchor plate that moves relative to the horizontal direction; and a card that is combined with the anchor plate, and conveys a horizontal force caused by a relative displacement in the horizontal direction to the extending portion of the flange plate of the laminated rubber body and does not convey vertical An engaging member for a vertical force caused by a relative displacement of the direction; the engaging member is constituted by a columnar shear key, and one side of the shear key is inserted at an extension of the flange plate Set Inserting the other side of the shearing key into a hole or a recess provided at the anchor plate, and the entire shear key is housed in the flange plate and the anchor plate, and the shear key is not It is fixed to either of the flange plate and the anchor plate. A laminated rubber body mounting structure in which a laminated rubber body is interposed between an upper structure body and a lower structure body, the laminated rubber body being formed under a laminated rubber portion in which a rubber layer and a reinforcing plate are alternately laminated End face a flat flange plate having a larger planar shape than the laminated rubber portion and having an outer portion extending outward of the outer edge of the laminated rubber portion; the laminated rubber body is attached to the lower portion The mounting structure of the laminated rubber body of the structure is characterized in that it is provided on the upper surface of the lower structure, and is in contact with the flange plate of the laminated rubber body so as to be horizontal with the flange plate a flat anchor plate that moves in a direction; and a card that is combined with the anchor plate, and conveys a horizontal force caused by a relative displacement in the horizontal direction to the extending portion of the flange plate of the laminated rubber body and does not convey a vertical direction The engaging member of the vertical direction caused by the relative displacement; the engaging member is constituted by a columnar shear key, and one side of the shear key is inserted at the extending portion of the flange plate a hole portion, the other side of the shear key is inserted into the hole portion or the recess portion provided at the anchor plate, and the entire shear key is received in the flange plate and the anchor plate, and the shear button is Not fixed to the above flange plate and the above The plate according to any one. A structure comprising a mounting structure of a laminated rubber body according to any one of claims 1 to 3.