JP3079365B2 - 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 a seismic isolation structure, and more particularly to a joint between a seismic isolation part and a non-seismic isolation part.

[0002]

2. Description of the Related Art In a base-isolated structure, a base-isolated unit such as a base-isolated frame having a base-isolated device made of a base-isolated rubber or the like, and a base-isolated device constructed outside the base-isolated unit and not installed. When a communication part such as a passage or room is formed in an opening formed between a non-seismic isolation part such as a non-seismic frame, this communication part is connected with a ceiling panel, floor panel, or wall panel. Panels must also have a structure that follows the movement of the non-seismic part and the seismic isolation part in the event of an earthquake so that vibration is not transmitted from the non-seismic part to the seismic isolation part.

Conventionally, as the seismic isolation structure in the communication portion, an expansion device having a structure similar to that of a connecting plate whose ends are wrapped and rubbed with each other, such as in a connecting portion of a train, is generally considered. However, in such a case, floor panels, ceiling panels, wall panels, etc. are separately protruded from the seismic isolation part and the non-seismic isolation part, and the leading ends of both panels are slidably wrapped. Vibration is not transmitted from the non-seismic part to the seismic isolator by sliding the parts while sliding each other.

[0004]

By the way, the force generated at the time of an earthquake does not act particularly large in the vertical direction,
Since a force that is large in the horizontal direction and has an indeterminate direction acts in particular, it is necessary to cope with the force in the horizontal direction also at this joint. In this case, since the floor panel and the ceiling panel are arranged horizontally, the direction in which they slide as described above is also the horizontal direction, and as a result, if a horizontal force is applied, it acts in any direction. But even large ones can handle this.

[0005] However, in the case of vertically arranged wall panels, the ends of each wall panel are fixed to a base-isolated section such as a base-isolated frame and a non-base-isolated section such as a non-base-isolated frame. Since the direction of horizontal arrangement is fixed, swinging in the horizontal arrangement direction can cope with this because the wrapped panels rub against each other and slide, but even in the horizontal direction, the orientation of panel installation It is difficult to deal with different directions.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to provide a panel provided here with a horizontal force whose direction cannot be determined when an earthquake occurs in a communicating portion between a seismic isolation part and a non-seismic isolation part. It is an object of the present invention to provide a seismic isolation structure that can reliably cope with this even if it acts.

[0007]

According to the present invention, a communication part such as a passage or a room is provided between a base-isolated section such as a base-isolated frame and a non-base-isolated section such as a non-base-isolated frame. When forming, of the wall panel, the ceiling panel, and the floor panel that form the communication part such as the passage or the room, the wall panel is one of the seismic isolation parts whose one end is rotatably pivoted, It consists of the seismic isolation part and the other panel whose end is rotatably pivoted,
In a seismic isolation structure in which the front end portions of both panels are slidably wrapped and the wrapped portions are connected by bolts, the ceiling panel has one end horizontally fixed to the non-seismic side by bolts. Is wrapped and abutted on the lower surface of the other ceiling panel fixed to the seismic isolation side, and this lap is connected with a pin, and this pin is attached to the groove formed on the non-seismic side ceiling panel. Slidably engage,
The floor panel was slidably mounted on a support member made of a girder formed on the non-seismic side floor and a mortar, with the end of one floor panel having an end fixed to the seismic isolation side with bolts. The gist is that.

According to the first aspect of the present invention, in the case of the panel disposed on the wall of the communication portion, the end of the panel is not in contact with the seismic isolation portion in response to the horizontal force at the time of the earthquake. Since it is pivotally attached to the seismic isolation part, it pivots at this part and slides while the lap portions at the tip end rub against each other. Therefore, even if the vibration is generated in any horizontal direction, the vibration can be absorbed by the joint by the rotating action and the sliding action.

Further, the ceiling panel and the floor panel also slide while the lap portions at the tip portions rub against each other.
Therefore, even if it vibrates in any horizontal direction, the vibration can be absorbed by this joint by the sliding action, and the ceiling, wall,
Vibration can be absorbed in all parts of the floor.

Further, since the lap portions of the panels are in a state of being pin-connected by pin projections by bolts, the two panels are not separated. Since the bolt slides in the groove formed in the other panel, the panels rub smoothly while maintaining the mutual connection state, and the function as a ceiling is not impaired.

Since the floor on the non-seismic side is provided with a support member for supporting the tip of the floor panel fixed to the seismic isolated side,
The wrap can be done reliably.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional plan view showing an embodiment of a seismic isolation structure of the present invention, and FIG. 2 is a perspective view of a joint where a seismic isolation structure of the present invention is implemented.
When a communication part such as a passage or a room is formed in the opening 3 between the base and the non-seismic isolation part 2 such as a non-seismic skeleton, the members forming the communication part include a wall, a ceiling, and a floor, respectively. A wall panel 4, a ceiling panel 5, and a floor panel 6 using a light metal such as aluminum as a material which is also a decorative board are provided.

The wall panel 4 will be described.
Is a panel 4a whose end is pivotally attached to the seismic isolation part 1 with a crank-shaped hinge 7, and a panel whose end is also pivotally attached to the non-seismic isolation part 2 with a crank-shaped hinge 7. 4b, the both panels 4a and 4b have their front ends slidably wrapped back and forth, and these wrapped parts are connected by bolts. In the drawing, reference numeral 12 denotes an M clip which is a member for fixing the bolt to the panel 4a.

Then, on the one panel 4b, about three grooves 9 made of, for example, a C channel material are provided in parallel, and the bolts are slidably engaged with the grooves 9 as pin projections 8. As a result, the pin projections 8 protrude toward the panel 4b and are slidably combined with each other in a state where the lap portions of the panels 4a and 4b are connected by the bolts serving as the pin projections 8.

Then, a member such as the Teflon sheet 11 for smoothing the slide is attached to a portion of the panel 4b which is rubbed by the slide. In the figure, reference numeral 10 denotes a fire protection zone for closing the opening 3.

As shown in FIG. 3, an end of the panel 5a is horizontally fixed to the side of the non-seismic isolation section 2 via an angle member 13 with bolts as shown in FIG. Of the fixed ceiling panel 5b constructed on the side of the seismic isolation part 1 is wrapped and abutted, and this wrapped portion is connected with the pin 14 and the pin 14 is connected to the panel 5b.
a, the panel 5a fixed to the non-seismic isolation part 2 side is slidably engaged in the groove 15 formed on the non-seismic isolation part 2 and horizontally slid on the lower surface of the panel 5b fixed to the seismic isolation part 1 side. Combine freely.

As shown in FIG. 4, the floor panel 6 of the floor is made of, for example, aluminum honeycomb from the side of the seismic isolation part 1 to the side of the non-seismic part 2 at the same height as the floor of the seismic isolation frame. The panel 6b of the structure is projected horizontally, and the end is fixed to the seismic isolation frame on the seismic isolation part 1 side with bolts.

On the side of the non-seismic isolation part 2, the floor of the floor 6a of the non-seismic isolation frame is formed one step lower than the side of the seismic isolation part 1, and the tip of the floor 6a is formed one step lower. A plurality of (for example, two in the illustrated example) beam members 16 having a rectangular cross section are installed as members for supporting the panel 6b from the lower surface on the lower surface 6c. To the same height as the floor.

If the lower surface of the front end portion of the panel 6b is brought into contact with the upper surface of the girder member 16, the panel 6b having the end fixed to the seismic isolation part 1 is placed on the floor on the non-seismic isolation part 2 side. 6a is slidably combined in the horizontal direction on the upper surface.

Next, the operation will be described. When an earthquake occurs,
A large force acts particularly in the horizontal direction also at the joint between the seismic isolation part 1 and the non-seismic isolation part 2. If the direction of the horizontal force is the longitudinal direction of the panels 4a and 4b, the pin projection 8 is formed in a groove in a state where the panel 4b on the non-seismic isolation part 2 is in contact with the front surface of the panel 4a on the seismic isolation part 1 side. Panel 4 by moving in Article 9
b simply slides in the left-right direction in FIG. 1 along the front surface of the panel 4a, so that the horizontal force at the wall at the joint is not transmitted to the seismic isolation part 1.

The direction of the horizontal force is determined by the panel 4a,
4b is not necessarily in the horizontal longitudinal direction, and its directionality is not determined. In response to such a force, as shown in FIG. 5, the hinged portions of the hinges 7 at the ends of the panels 4a, 4b rotate in the corresponding directions, and the horizontal longitudinal direction of the panels 4a, 4b. Coincides with the direction of the swing, and the pin projection 8 moves in the groove 9 in this rotating state, so that the panel 4b becomes the panel 4a.
Slide along the front of the. Thereby, the horizontal force at the wall portion at the joint is not transmitted to the seismic isolation unit 1.

When the panel 4b is slid, the panel 4b is connected to the panel 4a by the bolts as the pin projections 8, so that the panels 4a and 4b do not separate from each other. When sliding, the Teflon sheet 11
Is interposed between the sliding surfaces of the panels 4a and 4b, so that the sliding can be smoothly performed and the horizontal force can be absorbed well.

On the other hand, the panel 5a fixed to the non-seismic part 2 against the horizontal force at the time of the earthquake slides along the lower surface of the panel 5b fixed to the seismic isolation part 1 at the ceiling of the communicating part. I do. And since these panels 5a and 5b are arranged horizontally in the ceiling, even if the shaking due to the earthquake is in any horizontal direction, it can slide in that direction.

Further, the panel 6b fixed to the frame on the seismic isolation part 1 side does not move when an earthquake occurs, but the floor 6a on the non-seismic part 2 side moves in the horizontal direction when an earthquake occurs. Then, the floor 6a slides on the lower surface of the panel 6b in the contact state. As a result, the vibration of the non-seismic part 2
To prevent communication.

In the case of the floor panel 6, as in the case of the ceiling panel 5, the floor 6a and the panel 6b thereon overlap horizontally, so that even if the shaking due to the earthquake is in any horizontal direction, it will move in that direction. Slides are possible.

[0026]

As described above, the seismic isolation structure of the present invention is
In the case of a wall panel placed at the communication part between the seismic isolation part and the non-seismic isolation part, the end of the panel can freely rotate between the seismic isolation part and the non-seismic isolation part against the horizontal force at the time of the earthquake Because it is attached to
While rotating at the shaft attachment portion, the wraps at the distal end slide while sliding against each other. Therefore, even if the vibration is generated in any horizontal direction, the vibration can be absorbed by the joint by the rotating action and the sliding action.

In addition, since the ceiling panel and the floor panel also slide while the lap portions at the leading ends thereof rub against each other, the vibration can be absorbed at this joint by the sliding action even if the vibration vibrates in any horizontal direction. Vibration can be absorbed by all parts of the ceiling, walls and floor.

Further, since the lap portions of the panels are in a state of being pin-coupled by pin projections with bolts, the two panels are not separated. Since the bolt slides in the groove formed in the other panel, the panels rub smoothly while maintaining the mutual connection state, and the function as the ceiling is not impaired.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a part of a wall panel showing an embodiment of a seismic isolation structure of the present invention.

FIG. 2 is a perspective view of a joint showing an embodiment of the seismic isolation structure of the present invention.

FIG. 3 is a vertical sectional front view of a ceiling panel showing an embodiment of the seismic isolation structure of the present invention.

FIG. 4 is a vertical sectional front view of a floor panel showing an embodiment of the seismic isolation structure of the present invention.

FIG. 5 is a cross-sectional plan view showing a moving state of a wall panel showing an embodiment of the seismic isolation structure of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Seismic isolation part 2 ... Non-seismic part 3 ... Opening 4 ... Wall panel 4a, 4b ... Panel 5 ... Ceiling panel 5a, 5b ... Panel 6 ... Floor panel 6a ... Floor 6b ... Panel 6c ... Step part 7 ... Hinge 8 … Pin projections 9… grooves 10… fire protection zone 11… Teflon sheet 12… M clips 13… angle materials 14… pins 15… grooves 16… girder materials

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor, Juichi Oshimi 4-51, Otacho, Naka-ku, Yokohama-shi, Kanagawa Prefecture, Kashima Construction Co., Ltd.Yokohama Branch (72) Inventor, Katsuhiro Kawabe 2--12, Nagatacho, Chiyoda-ku, Tokyo No. 14 ABC Corporation (56) References JP-A-7-42335 (JP, A) JP-A-3-241131 (JP, A) JP-A-9-256482 (JP, A) (58) Survey Field (Int.Cl. ⁷ , DB name) E04B 1/62

Claims (1)

(57) [Claims] When a communication part such as a passage or a room is formed between a base-isolated part such as a base-isolated skeleton and a non-seismic isolated part such as a non-base-isolated skeleton, the communication part such as the passage or a room is formed. Of the wall panel, the ceiling panel, and the floor panel, the wall panel has one end pivotally attached to the seismic isolation part and the other end pivotally attached to the non-seismic part. In the seismic isolation structure, which is composed of the other panel and the front ends of both panels are slidably wrapped and the wrapped parts are connected by bolts, the ceiling panel is horizontally bolted at the end to the non-seismic isolated side. The tip of one fixed ceiling panel is wrapped and abutted on the lower surface of the other ceiling panel constructed by fixing it to the seismic isolation side, and this wrapped part is joined with a pin, and this pin is attached to the non-seismic side. The floor panel is slidably engaged with the groove formed in the ceiling panel, and the floor panel is The end of one floor panel, the end of which is fixed to the seismic isolation side with bolts, is slidably mounted on a support member made of girder material and cast mortar formed on the floor on the non-seismic side. Seismic isolation structure.