JP3359877B2 - Entrance / exit device for seismic isolation structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance / exit device for a seismic isolation structure, and more particularly to an entrance / exit device for a seismic isolation structure supported by a seismic isolation device on a fixed structure fixed to the ground. The present invention relates to a technology that is effective when used as an entrance / exit device of a storage, such as a museum or an art gallery, that stores goods.

[0002]

2. Description of the Related Art Precious cultural assets and the like are stored in storages such as museums and art galleries, and it is necessary to adopt a seismic isolation structure in order to protect the precious collections from earthquakes. However, if the seismic isolation structure was constructed for each item in the storage, not only would the equipment cost increase, but also the space efficiency of the storage would decrease, and the functions of the museum and art museum would decrease. there is a possibility. Therefore, for example, the actual fair 5-262
It is conceivable to adopt the seismic isolation room described in JP-A-01. In other words, by supporting the storage with seismic isolation devices on the structural floor inside buildings such as museums and art galleries,
The whole storage is to be constructed in a seismic isolation structure.

[0003] Since the relative displacement in the horizontal direction between the building and the storage during an earthquake may reach about 40 cm, the distance between the opening on the storage side and the opening on the building side, which serves as the entrance of the storage, can be obtained. Has a 40c for absorbing this relative displacement.
It is necessary to interpose a gap of m or more. Therefore, at the doorway of the storage, an entrance / exit device in which a bridge that spans a gap between the floor surface of the storage-side opening and the floor surface of the building-side opening is slidably provided is provided.

A document describing such an entrance / exit device for a base-isolated structure is Japanese Utility Model Publication No. 4-48286.
And Japanese Utility Model Publication No. 7-55239.

[0005]

However, in an entrance / exit device for a seismic isolation room in which a bridge is slidably mounted between the floor surface of the seismic isolation room side opening and the floor surface of the building side opening. Therefore, it is not appropriate to adopt as an entrance / exit device of a storage in which extremely valuable storage items are carried in / out. That is, if a slope is formed in the bridge, the stored items are likely to fall or fall when carrying in and out of the storage, and there is a possibility that valuable cultural assets and the like may be damaged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a seismic isolation structure capable of avoiding the occurrence of a slope and absorbing the relative displacement between the building and the seismic isolation structure at the time of the occurrence of an earthquake to ensure the safety of the entrance and exit. An object of the present invention is to provide a doorway device.

[0007]

An entrance / exit device for a seismic isolation structure according to the present invention is provided in a building fixed to the ground by a seismic isolation device.
Constitute the entrance and exit of the seismic isolation structure installed and supported by
This is an entrance / exit device for a seismic isolation structure that is installed in the building.
The between opening and aperture which is opened to the seismic isolation structure, cylinder and the outer inner wherein the opening of the building and opening of the seismic isolation structure is fitted freely to each other back and forth in the direction away are bridged and the cylinder, while the said construction of the inner cylinder or the outer cylinder
In a direction crossing the moving direction on one of Ya and the seismic isolation structure mounted for horizontal movement, the inner tube or
Alternatively, the other of the outer cylinders is attached so as to move integrally with the other of the seismic isolation structure or the building ,
An airtight seal is provided between the opposing surfaces of the cylinder and the outer cylinder by a seal member.
Characterized in that it is Lumpur.

In the above means, of the two-dimensional (within a horizontal plane) relative displacement between the building and the seismic isolation structure at the time of the occurrence of an earthquake, the direction in which the building and the seismic isolation structure are separated (X direction)
Is absorbed by the forward and backward movement of the inner and outer cylinders ,
The displacement in the direction (Y direction) intersecting with the forward and backward directions of the cylinder and the outer cylinder is absorbed by the horizontal movement of one of the inner cylinder and the outer cylinder in the Y direction.

[0009] By the retractably of the inner cylinder and the outer cylinder horizontally to each other, since the slope is generated in the inner cylinder and the outer cylinder is capable of preventing, when passing through the inner cylinder and the outer cylinder Safety can be ensured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An entrance / exit device for a base-isolated structure according to an embodiment of the present invention will be described below with reference to the drawings.

In the present embodiment, the entrance / exit device for a seismic isolation structure according to the present invention is configured as an entrance / exit device for a storage installed in a building such as a museum or a museum. That is, as shown in FIG. 1, a storage 20 as a seismic isolation structure is a floor 12 of a space 11 formed in a building 10.
Are supported by a plurality of seismic isolation devices 13.
The storage 20 is made of a reinforced concrete or a steel frame concrete and is rigidly constructed in a rectangular box shape.
The storage room 21 is independent of the storage room 21. A gap 14 of 40 cm or more is formed between the inner surface of the side wall of the space 11 and the outer surface of the side wall of the storage 20 in order to absorb a relative displacement in the horizontal direction during an earthquake.

In order to constitute the entrance 30 of the storage 20, a building-side opening (hereinafter referred to as a building entrance) 31 is opened in one side wall (hereinafter referred to as a partition wall) 15 of the building 10, and a partition wall 15 is provided. On the side wall (hereinafter, referred to as a front wall) 22 of the storage 20 which faces the storage opening, a storage-side opening (hereinafter, referred to as a storage opening) 32 is opened so as to face the building entrance 31. A gap 14 is set between the building entrance 31 and the storage entrance 32 to absorb the relative displacement in the horizontal direction during an earthquake. At the entrance 30 of the storage 20, an inner cylinder 33 and an outer cylinder 34 as a pair of bridges are installed.
The direction in which the gap 14 expands and contracts between the inner cylinder 33 and the outer cylinder 34, that is, the direction in which the partition wall 15 and the front wall 22 are separated (hereinafter referred to as X
Direction. ) Are fitted to each other so as to be able to move forward and backward. The inner cylinder 33, which is one bridge, is mounted so as to be horizontally movable in a direction along the partition wall 15 (hereinafter, referred to as a Y direction). The outer cylinder 34 which is the other bridge is the front wall 22.
Is mounted so as to be able to move together.

That is, as shown in FIGS. 2 and 3, the outer cylinder 34 has a horizontally long rectangular frame shape whose inner diameter is larger than the frame body 23 built in the storage port 32 of the front wall 22. The back surface is fixed to the frame body 23 by bolts, welding, or the like. The outer cylinder 34 is supported by a support member 16 laid between the plurality of seismic isolation devices 13 of the building 10 via a spacer 17.

As shown in FIG. 2 to FIG.
Numeral 3 is constructed in a horizontally long rectangular frame shape whose outer diameter is similar to the inner diameter of the outer cylinder 34 and is inserted into the outer cylinder 34 movably in the X direction. As shown in FIG. 2, guide tapes 35 as guide members are respectively laid in the X direction at the upper and lower ends of the outer surface of the side wall of the inner cylinder 33, and each guide tape 35 has a side wall of the outer cylinder 34. Each of the guide rollers 36 attached to the front surface of the roller is in contact with each other so as to freely roll. Guide rollers 36 are also attached to the upper and lower ends of the rear surface of the side wall of the inner cylinder 33, and these guide rollers 36 roll on guide tapes (not shown) laid on the inner surface of the side wall of the outer cylinder 34. It is abutted freely.

The inner cylinder 33 has an inner diameter of the building entrance 31 of the partition wall 15.
It is constructed in a horizontally long rectangular frame shape that is equal to the inner diameter of the door frame 18 built in. As shown in FIG. 3, a decorative panel 37 is attached to the front end face of the inner cylinder 33 so as to protrude radially outward, and the width of the decorative panel 37 is such that the inner cylinder 33 is built by the earthquake. It is set so that the gap 14 can be prevented from being seen when the user moves in the Y direction with respect to the mouth 31. That is, the building entrance 31 becomes the inner cylinder 33 due to the earthquake.
However, even if the decorative board 37 is moved by a maximum of 40 cm in the Y direction, the decorative board 37 covers one side of the building entrance 31 and closes the gap 14, thereby ensuring safety.

As shown in FIGS. 2, 3 and 5, a plurality of guide roller blocks 38 for supporting the inner cylinder are arranged in a straight line in the Y direction at a position near the partition wall 15 on the floor surface 12. The guide rollers 39 of the guide roller block 38 rotate in a vertical plane in the Y direction. A lower end of a guide rail 40 laid on the lower surface of the inner cylinder 33 is placed on the guide rollers 39, and the guide rails 40 relatively roll the guide rollers 39. Therefore, the inner cylinder 33 has a plurality of guide roller blocks 3
8, a state in which it is supported from below so as to be movable in the Y direction. The distance between the flanges at both ends of the guide roller 39 is set larger than the thickness of the guide rail 40 so that the guide rail 40 can be slightly shifted in the X direction. Due to the slight movement of the guide roller 39 in the X direction of the guide rail 40, a slight movement (twist) in the rotation direction (Θ direction) of the inner cylinder 33 in the horizontal plane is allowed.

As shown in FIGS. 2, 4 and 6, a beam 41 is laid horizontally in the Y direction at a position above the door frame 18 on the inner surface of the partition wall 15. Beam 41
A guide rail 42 for suspending the inner cylinder is installed vertically downward on the lower end surface, and a plurality of trolleys 43 are arranged on the guide rail 42 so as to run in a line in the Y direction. Each trolley 43 is connected to the upper surface of the inner cylinder 33 via a connection block 44. Therefore, the inner cylinder 33 is provided with the trolley 43 and the connection block 44.
And is movably hung by the guide rail 42 in the Y direction.

As shown in FIG. 6 in an enlarged manner, the connecting block 44 is attached via a damper 46 to a spherical joint 45 whose upper end is suspended by a trolley 43 and to a lower end of the spherical joint 45. Bracket 47 and a flange 48 protruding from the upper surface of the inner cylinder 33 and fixing the bracket 47.
And Since the connection block 44 includes the spherical joint 45 and the damper 46, a slight movement (twist) in the Θ direction in the horizontal plane of the inner cylinder 33 suspended by the trolley 43 is allowed.

As shown in FIG. 3, a roller block storage portion 50 is formed in the floor plate portion 33a of the inner cylinder 33. The roller block storage portion 50 is a rectangular space that is about half the width in the X direction and is long in the Y direction. As shown in FIG. 7, the mounting plate 51
Is projected horizontally and rearward. The upper surface of the mounting plate 51 is flush with the upper surface of the floor plate portion 33a.
A roller block housing portion 50 is formed below the upper surface of the floor plate portion 34a of the outer cylinder 34, which is a space corresponding to the thickness of the floor plate portion 33a of the inner cylinder 33.

In the roller block storage section 50, a plurality of roller blocks 52 are arranged in the Y direction as shown in FIG. 3 in a state of being parallel to each other. As shown in FIG. 8A, it is attached to the lower surface of the mounting plate 51 so as to be movable integrally with the mounting plate 51. The roller block 52 has a plurality of rollers 53 arranged in series in the X direction and rotatably held therein.
These rollers 53 roll on the upper surface of the floor plate portion 34a of the outer cylinder 34. On the upper surface of the floor plate portion 33 a of the inner cylinder 33, an inner cylinder outer decorative board 54 is placed so as to straddle the mounting plate 51. As shown in FIG. 8A, the roller block 52 is also attached to the left and right end portions on the lower surface of the inner cylinder 33 so as to move integrally.

On the upper surface of the floor plate portion 34a of the outer cylinder 34, a plurality of roller blocks 57 are arranged in parallel with each other, and each roller block 52 is attached to the inner cylinder 33 as shown in FIG. As shown in FIG. 9, they are arranged at positions facing each other and arranged in the Y direction, and are attached to the floor plate portion 34 a. On the roller block 57, a plurality of rollers 58 are arranged in series in the X direction and rotatably held. On these rollers 58, a tread plate 55 attached to a floor plate portion 34a of the outer cylinder 34 by a hinge 56 is placed. Have been. The tread plate 55 is connected to the outer cylinder 3 by the hinge 56.
The roller blocks 57 are mounted so as to move integrally with the floor plate portion 34a of the fourth roller block 4, and can be exposed to the roller blocks 57 as required by rotating vertically. The front end of the tread plate 55 is the roller block 52 on the inner cylinder side.
It reaches the center of the inner cylinder surface decorative panel 54 beyond the group.

As shown in FIG. 9, the roller block 57 has a holder 59 formed in the shape of a channel steel, and the holder 59 is installed vertically upward on the floor plate 34a of the outer cylinder 34. ing. On both side walls of the holder 59, a plurality of guide holes 60 are arranged in the X direction, and each of the guide holes 60 is opened vertically long. The roller 58 is rotatably supported by a bracket 62 formed in the shape of a channel steel, and the bracket 62 is vertically movable by a guide pin 61 inserted into a holder 59 from above and slidably inserted into a guide hole 60. It is supported by.
A spring 63 is interposed at the bottom of the holder 59, and the spring 63 urges the bracket 62 upward.

As shown in FIGS. 1-4, the inner cylinder 3
A seal member 64 for sealing the clearance between the outer peripheral surface of the inner cylinder 33 and the inner peripheral surface of the outer cylinder 34 is laid on the entire outer periphery of the outer periphery of the outer cylinder 3. The sealing member 64 is shown in FIG.
As shown in (b), an elastic material such as rubber or resin is used to form a channel-type steel shape,
With the ends of both rising walls abutting against the inner surface of the outer cylinder 34, the bottom surface is abutted against the outer surface of the inner cylinder 33 and fastened by bolts 65. In addition, the sealing member 6
4 is laid around the roller block storage portion 50 cut out in the floor plate portion 33a of the inner cylinder 33, so that a sealing state over the entire circumference is ensured.

As shown in FIG. 5, on the inner surface of the door frame 18 installed on the partition wall 15, a partition wall 15 is provided.
A sealing member 66 for sealing a clearance between the inner cylinder 33 and the inner cylinder 33 is laid all around. The seal member 66 is formed in a channel steel shape using an elastic material such as rubber or resin, and has a bottom surface abutting against an outer surface of the door frame 18 and is fastened by bolts 67.
The front ends of both rising walls of the sealing member 66 are provided on the front end surface of the inner cylinder 33 over the entire periphery of the sealing sheet 6.
8.

A checker plate 69 is placed on the floor plate 18 a of the door frame 18, and the tip of the checker plate 69 is close to the floor plate 33 a of the inner cylinder 33. On the tip of the checker plate 69, a mounting plate 51 and an inner cylinder surface decorative board 54 placed on the floor plate 33a of the inner cylinder 33 are stacked.

Next, the operation and effect of the entrance / exit device for the storage according to the above configuration will be described.

The floor plate portion 33a of the inner cylinder 33, which is a pair of bridges connecting the building entrance 31 and the storage opening 32, and the outer cylinder 34
The tread plate 55 laid on the floor plate portion 34a is normally in a horizontal state as shown in FIG.
That is, the tread plate 55 attached to the outer cylinder 34 so as to move integrally with the hinge 56 is horizontally supported by a group of roller blocks 57 on the storage opening side, and the half on the building entrance side is the roller block 52 on the inner cylinder side. It is slidably supported by protruding above the mounting plate 51 and the inner cylinder facing decorative plate 54 supported by the group.

As described above, since it is horizontally supported by the tread plate 55, extremely valuable storage items are stored in the storage 2
It is possible to prevent the stored articles from falling down or falling off when the articles are transported through the entrance 30 of 0.

A pair of bridges connecting the building opening 31 and the storage opening 32 are connected to the inner cylinder 3 which can be freely moved forward and backward.
3 and the outer cylinder 34, it is possible to prevent the gap 14 from being seen when a person moves in and out of the entrance 30 of the storage 20. Can be prevented from being felt.

On the outer peripheral surface of the inner cylinder 33, a seal member 64 for sealing the clearance between the outer peripheral surface of the inner cylinder 33 and the inner peripheral surface of the outer cylinder 34 is laid all around.
A seal member 66 for sealing the clearance between the partition wall 15 and the inner cylinder 33 is laid all around the inner surface of the door frame 18 installed in the building 10.
It is possible to prevent alkali components, moisture, dust and the like generated from the concrete in the space 11 from entering the storage room 21 from the entrance 30. Therefore, the storage room 21
It is possible to prevent deterioration of the stored items stored in the storage device and generation of mold and the like.

In the event of an earthquake, the storage 20 stores the seismic isolation device 1
Since the building 10 is supported, it does not shake even if the building 10 shakes. In other words, the items stored in the storage 20 are not shaken even in the event of an earthquake, so that valuable cultural assets and the like can be prevented from being damaged and stored safely.

When an earthquake occurs, the storage 20 becomes the building 10
The outer cylinder 34 and the outer cylinder 3 attached so as to move integrally with the
The inner cylinder 33 fitted to 4 moves horizontally relative to the building 10. Of the horizontal movement, the movements in the Y direction and the Θ direction are absorbed by the inner cylinder 33 moving in the Y direction with respect to the building entrance 31 and rotating (twisting). That is, the inner cylinder 33 is
8 and is supported by the guide rail 42 via the trolley 43 and the connecting block 44 so as to be movable in the Y and に よ っ て directions. Therefore, the storage 20 can be moved in the Y direction following the horizontal movement in the Y and Θ directions.

On the other hand, the movement in the X direction of the horizontal movement is absorbed by the relative expansion and contraction of the outer tube 34 and the inner tube 33 in the X direction. For example, when the inner cylinder 33 and the outer cylinder 34 move in a direction in which the inner cylinder 33 and the outer cylinder 34 are shortened by the earthquake, the roller block 52 group attached to the attachment plate 51 of the inner cylinder 33 becomes the outer cylinder 34.
Rolls on the floor plate portion 34a of the outer cylinder 34,
Between the group of roller blocks 57 attached to. At this time, the attachment plate 51 and the inner cylinder facing decorative plate 54 attached to the inner cylinder 33 push down the bracket 62 of the roller block 57 against the push-up force of the spring 63 so that the tread plate 55 and the rollers 58 It is in a state of entering in between.

In this way, the movement in the X direction at the time of the earthquake is absorbed by the expansion and contraction operation of the outer cylinder 34 and the inner cylinder 33, and the movement in the Y and Θ directions is absorbed by the opening 3 of the inner cylinder 33.
1 and the horizontal state of the tread plate 55 is maintained, so that the safety in the event of an earthquake can be ensured.

It should be noted that the present invention is not limited to the above-described embodiment, but may be modified without departing from the scope of the invention.
It goes without saying that various changes are possible.

[0036]

The pair of bridges is not limited to a configuration in which the storage opening side ends move integrally in the X direction so that the building opening side ends move in the Y direction, but the building opening side ends also move integrally in the X direction. As described above, the storage opening side end may be configured to move in the Y direction.

One end of the bridge is a guide roller block 3
The guide roller block 38 supports not only the trolley 43 and the connecting block 44 so as to move in the Y direction and the ブ ロ ッ ク direction, but also the trolley 43 and the connecting block 44. May be supported so as to move in the Y direction, or may simply be hung so as to move in the Y direction by the guide rail 42 via the trolley 43 and the connecting block 44. However, when the bridge is provided so as to be movable in the Θ direction, the （direction stress (twist) acting between both bridges can be absorbed.

In the above-described embodiment, the case where the present invention is applied to a doorway device of a storage is described. However, the present invention is not limited to this, and may be applied to a seismic isolation room or the like in which a vibration-resistant device such as a computer room is installed. The present invention can be applied to all entrance / exit devices of a base-isolated structure supported by a base-isolation device in a building .

[0040]

As described above, according to the present invention,
Since it is possible to reliably absorb the relative displacement between the building and the seismic isolation structure at the time of the earthquake while preventing the generation of the slope, it is possible to improve the safety of the doorway device of the seismic isolation structure.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a storage in which a doorway device of a storage according to an embodiment of the present invention is installed.

FIG. 2 is a side view showing an entrance / exit device of a storage as one embodiment of the present invention.

FIG. 3 is a partially omitted plan sectional view.

FIG. 4 is a rear sectional view.

FIG. 5 is an enlarged view showing a portion V in FIG. 2;

6 (a) is an enlarged view of a portion VI in FIG. 2, and FIG. 6 (b) is a rear view thereof.

FIG. 7 is a side cross-sectional view showing floor plates of an inner cylinder and an outer cylinder.

FIG. 8A is an enlarged view of a portion VIII in FIG. 7, and FIG.
FIG. 9 is a sectional view taken along the line bb in FIG.

9A is an enlarged view of a portion IX in FIG. 7, and FIG. 9B is a cross-sectional view taken along line bb in FIG. 9A.

[Explanation of symbols]

10 building, 11 space, 12 floor, 13 seismic isolation device, 14 gap, 15 partition wall, 16 support member, 17
... spacer, 18 ... door frame, 20 ... storage room, 21 ... storage room, 22 ... front wall (side wall of storage room facing partition wall),
23: frame, 30: doorway, 31: building entrance (building side opening), 32: storage opening (storage side opening), 33: inner cylinder (one of bridges), 33a: inner cylinder floor plate part, 34 ... outer cylinder (the other side of the bridge), 34a ... floor plate of the outer cylinder, 35 ...
Guide tape, 36: guide roller, 37: decorative board, 3
8: Guide roller block, 39: Guide roller, 40
... guide rails, 41 ... beams, 42 ... guide rails, 43
... Trolley, 44 ... Connection block, 45 ... Spherical joint,
46 damper, 47 bracket, 48 flange, 5
0: Roller block storage part, 51: Mounting plate, 52: Roller block, 53: Roller, 54: Inner cylinder surface decorative board, 5
5 ... step board, 56 ... hinge, 57 ... roller block, 58
... rollers, 59 ... holders, 60 ... guide holes, 61 ... guide pins, 62 ... brackets, 63 ... springs, 64 ...
Seal member, 65: bolt, 66: seal member, 67 ...
Bolt, 68 ... Seal sheet, 69 ... Checker plate.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04H 9/02 331 E04B 1/62

Claims (6)

(57) [Claims] (1) A seismic isolation device is installed in a building fixed on the ground.
Configure the entrance of the seismic isolation structure supported and installed
An entrance / exit device for a base-isolated structure, wherein the opening is provided in the building and the base-opening device is provided in the base-isolated structure.
Between the opening of the building and the seismic isolation structure
The inside of the fittings that can move forward and backward in the direction in which the opening is separated
A cylinder and an outer cylinder are provided, and the inner cylinder or the outer cylinder is
One is attached to one of the building or the seismic isolation structure so as to horizontally move in a direction intersecting the retreating direction, and the other of the inner cylinder or the outer cylinder is the other of the seismic isolation structure or the building A seal member is provided between the opposed surfaces of the inner cylinder and the outer cylinder.
An entrance / exit device for a base-isolated structure, which is hermetically sealed by: 2. One of the inner cylinder and the outer cylinder is provided on one of the building and the seismic isolation structure so as to be horizontally movable in a direction intersecting with the retreating direction and a rotating direction. The entrance / exit device for a seismic isolation structure according to claim 1. 3. A process according to claim, characterized in that it is installed as the step board is on the floor of the inner cylinder or the outer cylinder is moved together with the inner cylinder or the outer cylinder of said side integrally move 3. The entrance / exit device for a seismic isolation structure according to 1 or 2. 4. The entrance / exit device for a base-isolated structure according to claim 3, wherein the tread plate is rotatably supported by one of the inner cylinder and the outer cylinder by a plurality of rollers. 5. A doorway apparatus seismic isolation structure as claimed in claim 1, 2, 3 or 4, wherein the seismic isolation structure is a storehouse. 6. The seismic isolation structure in a computer room
Doorway apparatus seismic isolation structure as claimed in claim 1, 2, 3 or 4, characterized in that.