JPH054511Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is designed to connect a seismic isolation floor on which computers, etc. of complex and ultra-precise equipment are installed, and the building frame side that supports the seismic isolation floor on the structural floor. This invention relates to a displacement absorbing device used in the periphery of a seismic isolation floor to absorb three-dimensional relative displacement between the two.

[Prior Art] In control rooms and computer rooms, which are equipped with complex, ultra-precision equipment and computers that are sensitive to vibration, seismic isolation floors are used to protect such equipment from vibrations caused by earthquakes and the like. Due to the need to route cables, the seismic isolation floors are installed in a double-floor style on top of the fixed floor of the building via seismic isolation devices, so that even if the building is subjected to seismic forces, vibrations are not transmitted to the seismic isolation floor.

Now, to show an example of the installation of a conventional seismic isolation floor, as shown in Fig. 4, a seismic isolation floor 4 consisting of a combination of large beams and small beams with a floor panel 5 stretched over the top surface is installed on the structural wall of a building. (hereinafter referred to as the building wall) 2, and the size is such that the required distance 3 is formed between the
The seismic isolation floor 4 is supported on the structural floor of the building (hereinafter referred to as the building floor) 1 by an isolator 6,
In addition, in order to close the gap 3 formed between the periphery of the seismic isolation floor 4 and the inner surface of the building wall 2, a closing plate 8 is fixed horizontally to the building wall 2, as shown in an enlarged view in FIG. The closing plate 8 is superimposed on the periphery of the seismic isolation floor 4 so as to be slidable in the front, back, right and left horizontal directions, and the closing plate 8 is placed on the upper surface of the periphery of the seismic isolation floor 4.
A retaining plate 9 is provided by the supporting member 7 so as to form a void with a thickness greater than or equal to There is a configuration where it is inserted.

Therefore, when an earthquake occurs and lateral shaking occurs, the seismic isolation floor 4 supported by the isolator 6
exhibits a behavior different from that of the building, so a relative displacement will occur between the seismic isolation floor 4 and the building wall 2. Among the relative displacements mentioned above, the relative displacement in the horizontal direction that occurs between the seismic isolation floor 4 and the building wall 2 is caused by the sliding between the closing plate 8 and the void formed around the seismic isolation floor 4. can be absorbed by

[Problems that the invention aims to solve] However, earthquakes are not limited to horizontal shaking, but can also include vertical shaking, or a combination of horizontal shaking and vertical shaking. If the closing plate 8 is fixed to the building wall 2 so that its position cannot be changed, the relative displacement in the vertical direction that occurs between the seismic isolation floor 4 and the building wall 2 cannot be absorbed. It wasn't appropriate.

Therefore, the present invention aims to improve the three-dimensional structure that occurs between the surrounding area of the seismic isolation floor and the building wall, including not only the horizontal direction but also the vertical direction.
It is an object of the present invention to provide a displacement absorbing device for the periphery of a seismic isolation floor, which can absorb dimensional relative displacement easily with a simple configuration.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a vertical plate part that is bent at right angles to the periphery of a horizontal plate part that has an outer shape that matches the inner surface of the building. In addition, a movable floor with a structure in which the interior is cut out leaving the peripheral part is placed on a seismic isolation floor supported on the building floor so that it can be relatively displaced in the horizontal direction, and the vertical plate part of the movable floor is attached to the building wall. The structure includes a storage portion that is slidably inserted.

[Function] When the vertical plate around the movable floor is inserted into the storage section attached to the building wall and the movable floor is placed on the upper surface of the periphery of the seismic isolation floor, the vertical plate part around the movable floor is placed between the seismic isolation floor and the building wall. The space between them is closed off by the movable floor. In this state, if a relative displacement occurs in the horizontal direction between the seismic isolation floor and the building wall due to an earthquake, it can be absorbed by the relative displacement between the movable floor and the seismic isolation floor due to slipping between them.
Relative displacement in the vertical direction can be absorbed by the vertical plate portion of the movable floor placed on the seismic isolation floor sliding vertically within the storage space on the building wall side.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

1 and 2 show an embodiment of the present invention, in which the space between the peripheral part of a seismic isolation floor 4 having the same configuration as the conventional seismic isolation floor shown in FIG. 4 and the building wall 2 is shown. 〓
A movable floor 10 having rigidity for sealing off a room 3 is formed to the size of a room surrounded by a building wall 2, and is slidably placed on a seismic isolation floor 4. The above movable floor 10
As mentioned above, the horizontal plate part 10 has an external shape that is sized to match the size of the room and is in contact with the inner surface of the building wall 2, and the interior is cut out leaving the periphery.
a and a vertical plate part 10b formed by bending upward around the horizontal plate part 10a. The structure is such that a slippery tape or the like is pasted on both sides of the portion 10b to improve slippage. On the other hand, in the building wall 2, a storage part 11 that slidably guides the vertical plate part 10b of the movable floor 10 in the vertical direction is formed by a plate attached to the inner surface of the building wall 2 over the entire circumference, The vertical plate part 10b is fitted into the storage part 11 and slid in the vertical direction so that it can be relatively displaced.

When the movable floor 10 with the vertical plate part 10b fitted into the storage part 11 of the building wall 2 is placed on the upper surface of the peripheral part of the seismic isolation floor 4, the movable floor 10 will create a gap between the seismic isolation floor 4 and the building wall 2. Interval 3 is closed.

When an earthquake occurs under the above conditions and the building shakes horizontally, the building wall 2 and the seismic isolation floor 4 behave differently in the horizontal direction, so there is a gap between the surrounding area of the seismic isolation floor 4 and the building wall 2. A relative horizontal displacement occurs. in this case,
Relative displacements in the left-right direction (X-axis direction) and front-back direction (Y-axis direction) are easily absorbed by the movable floor 10 sliding on the seismic isolation floor 4 in the X-axis direction and the Y-axis direction. be able to. At this time, since the movable floor 10 is simply placed on the seismic isolation floor 4, the movable floor 10 can slide smoothly in any horizontal direction, and can move along the side of the building wall 2. Displacement can be easily absorbed without transmitting shaking to the seismic isolation floor 4.

Furthermore, when pitching occurs due to an earthquake and a relative displacement occurs in the vertical direction between the building wall 2 and the seismic isolation floor 4, the vertical plate portion 10b of the movable floor 10 moves into the storage portion 11 of the building wall 2.
Since the movable floor 10 and the building wall 2 can be freely displaced in the vertical direction, the vertical vibration of the building wall 2 is not transmitted to the movable floor 10 and the seismic isolation floor 4 due to the relative displacement of the movable floor 10 and the building wall 2 in the vertical direction (Z-axis direction). Can be absorbed. At this time, since the vertical plate part 10b of the movable floor 10 is made to slide easily by pasting a slippery tape or the like, the vertical plate part 10b can easily slide inside the storage section 11 and follow even a slight relative displacement. can.

Furthermore, if twisting in the rotational direction occurs between the seismic isolation floor 4 and the building wall 2 due to an earthquake, the movable floor 10
Since the horizontal plate portion 10a can freely slide on the seismic isolation floor 4, it can be easily absorbed, so that vibrations in the torsional direction of the building wall 2 are not transmitted to the seismic isolation floor 4.

Next, FIG. 3 shows another embodiment of the present invention, in which the vertical plate part 10b of the movable floor 10 is bent downward and inserted into a storage part 11 provided in the building wall 2 so as to open upward. Therefore, the space 3 between the periphery of the seismic isolation floor 4 and the building wall 2 is sealed off.

According to this embodiment, above the movable floor 10,
Storage compartment 1 as in the embodiment of FIGS. 1 and 2
1 is eliminated, the doorway to the room can be easily formed, and the room has the advantage of becoming more beautiful.

Note that the present invention is not limited to the above-mentioned embodiments. For example, the displacement absorbing device according to the embodiment shown in FIGS. 1 and 2 and the displacement absorbing device according to the embodiment shown in FIG. Figure 1 and 2
The embodiment shown in FIG. 3 may be adopted as a part of the displacement absorbing device according to the embodiment shown in the figure, and the embodiment shown in FIG. Of course, various changes can be made within the scope.

[Effects of the invention] As described above, according to the displacement absorbing device around the seismically isolated floor of the present invention, a movable floor in which the vertical plate part is slidably inserted into the storage section attached to the building wall can be seismically isolated. Since the structure is simply placed on the floor so that it can slide freely, it can absorb three-dimensional relative displacement in the horizontal and vertical directions and torsion in the rotational direction that occur between the seismic isolation floor and the building wall, and prevent shaking on the building side. This has the excellent effect of not transmitting the vibration to the seismic isolation floor.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of essential parts showing one embodiment of the present invention, Fig. 2 is a perspective view of Fig. 1, Fig. 3 is a perspective view showing another embodiment of the invention, and Fig. 4 is a conventional FIG. 5 is a sectional view showing an example of a seismic isolation floor, and FIG. 5 is a sectional view showing a conventional displacement absorption method. 1... Structural floor of the building (building floor), 2... Structural wall of the building (building wall), 3... Between, 4... Seismic isolation floor,
10...Movable floor, 10a...Horizontal plate part, 10b...
...Vertical plate section, 11...Storage section.

Claims (1)

[Scope of utility model claims] A movable floor with a vertical plate part bent perpendicularly to the periphery of a horizontal plate part having an external shape that matches the inner surface of the structural wall of the building, and with the interior cut out leaving the periphery part, is used as a movable floor. The movable floor is placed on a seismic isolation floor supported on the floor so as to be relatively displaceable in the horizontal direction, and the structural wall of the building is provided with a storage portion into which the vertical plate portion of the movable floor is slidably inserted. Displacement absorption device around the seismic isolation floor.