JPH076337Y2 - Displacement absorber around seismic isolation floor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a seismic isolation floor on which complicated and ultra-precision equipment and computers are installed, and a building side of a building supporting the seismic isolation floor on a structural floor. The present invention relates to a displacement absorbing device used in the peripheral portion of a seismic isolation floor to absorb relative displacement between them.

[Prior Art] In control rooms and computer rooms where complicated and ultra-precision equipment and computers that dislike vibration are installed, seismic isolation floors are used to protect such equipment from vibration such as earthquakes, and cable pulling is used. The seismic isolation floor is installed on the fixed floor of the building through a seismic isolation device in a double-floor type to prevent vibrations from being transmitted to the seismic isolation floor even if the building receives an earthquake force.

Now, showing an example of installation of a conventional seismic isolation floor, as shown in FIG. 5, a floor panel 5 is stretched via a stanchion 3 on the upper surface of a seismic isolation floor main body 4a which is a combination of large beams and small beams. The seismic isolation floor 4 is sized so that a required gap G is formed between it and the inner surface of the building wall (structural wall of the building) 2, and the seismic isolation is performed on the building floor (structural floor of the building) 1. In order to support the floor 4 by the isolator 6 and to close the gap G formed between the periphery of the base isolation floor 4 and the inner surface of the building wall 2, as shown in an enlarged view in FIG. The closing plate 8 is horizontally fixed to the above, and the closing plate 8 is projected so as to reach the position above the peripheral portion of the seismic isolation floor main body 4a, and a required space is provided between the upper surface of the seismic isolation floor main body 4a. Further, on the upper surface of the peripheral portion of the seismic isolation floor 4, a holding plate 9 horizontally arranged so as to be located above the closing plate 8 is a supporting member. Is supported by, and a configuration in which the inner edge of the closing plate 8 between the peripheral upper surface of the presser plate 9 and MenShinyuka 4 so as to be slidably inserted.

Therefore, when an earthquake occurs and rolls occur, the base-isolated floor 4 supported by the isolator 6 behaves differently from the building, so that relative displacement occurs between the base-isolated floor 4 and the building wall 2. become. Of the above relative displacements, the horizontal relative displacement that occurs between the seismic isolation floor 4 and the building wall 2 is due to the sliding between the closing plate 8 and the void formed in the peripheral portion of the seismic isolation floor 4. Can be absorbed.

[Problems to be Solved by the Invention] However, in the above conventional method, the floor panel 5 of the seismic isolation floor 4 is used.
Since the pressing plate 9 is used to close the space between the end of the holding plate 8 and the closing plate 8, it is not possible to place equipment on the pressing plate 9. That is, when equipment is placed on the holding plate 9 or a person walks on the holding plate 9, the load causes the holding plate 9 to bend and the sliding of the closing plate 8 to be obstructed, resulting in seismic isolation during an earthquake. Because the effect cannot be obtained, presser plate 9
There is a problem that the equipment cannot be placed on top of it, and the effective use range on the seismic isolation floor 4 is narrowed accordingly, so that it is limited to the range S inside the presser plate 9. The large displacement of can not be absorbed.

Therefore, in the present invention, the inner end of the end panel as a closing plate for supporting the relative displacement in the vertical, horizontal, and front-back directions generated between the seismic isolation floor and the building wall on the building wall side falls. It is intended to be able to absorb it and to expand the effective use range on the base-isolated floor.

[Means for Solving the Problems] In order to solve the above problems, the present invention arranges end panels horizontally between the periphery of a base isolation floor supported on a building floor and a building wall, When the outer end of the end panel is rotatably attached to the building wall in the vertical direction and the inner end of the end panel is relatively displaced between the seismic isolation floor and the building wall. The trigger is erected on the building floor so that it can fall over, and is mounted on and supported by the upper end of the trigger.

The outer end of the end panel may be placed on a pedestal provided on the building wall.

[Operation] When a relative displacement occurs between the seismic isolation floor and the building wall and the trigger is tilted, the inner end of the end panel is released from supporting, so that it may rotate downward or drop. Therefore, a movable space is formed between the seismic isolated floor and the building wall, and the relative displacement is absorbed. From this, the effective use range on the seismic isolated floor can be expanded.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. As shown in FIGS. 5 and 6, a floor panel 5 is stretched on the upper surface of the base isolation floor body 4a via a stanchion 3. Seismic isolation floor 4,
Arrange so that a gap G is formed between the building wall 2 and
In a structure similar to that supported by the isolator 6 on the building floor 1, a floor panel 10 having an outer edge with an inclined surface 10a having an upward slope toward the outside is attached to the seismic isolated floor body 4a.
The floor panel is stretched around the seismic isolation floor 4 around the seismic isolation floor 4, and the outer edge of the floor panel 10 around the seismic isolation floor 4 is extended. In order to close the gap G between the inner wall surface of the building wall 2 and the inner surface, a sloped surface 11a is formed on the inner edge so as to correspond to the sloped surface 10a of the floor panel 10. The end panel 11 is used, and the outer end of the end panel 11 is hinged to the bracket 12 attached to the inner surface of the building wall 2.
It is supported rotatably in the vertical direction at 13, and the inclined surface 11a at the inner edge portion when placed horizontally is provided with the floor panel 10.
Trigger on the building floor 1 to support the inner end of the end panel 11 which will be overlapped with the inclined surface 10a of the
The trigger 14 is erected so that it can be laid down, and the lower surface of the inner end of the end panel 11 is placed and supported on the upper end of the trigger 14, and further, the trigger 14 falls to the seismic isolated floor 4 side. A projection 15 having a function of a stopper for preventing the above and a function of pushing down the trigger 14 to the building wall 2 side when a relative displacement in the horizontal direction occurs between the seismic isolation floor 4 and the building wall 2, It is attached to the lower surface of the floor panel 10 located at the end of the seismic isolation floor 4, and when the trigger 14 hits against the protrusion 15 and is tilted, the end panel 11 rotates downward with the hinge pin 13 as a fulcrum by its own weight. Allow it to be displaced. The end panel 11
Are divided according to the shape of the floor panel 10 of the seismic isolated floor 4.

During normal times when an earthquake does not occur, the end panel 11 arranged horizontally between the seismic isolated floor 4 and the building wall 2 has a hinge pin on the outer end.
The bracket 12 and the inner end are supported by the bracket 12 by 13 and the gap G between the base isolation floor 4 and the building wall 2 is closed. 11 It is possible for people to transfer to the top and to walk safely.

In the above condition, if an earthquake occurs and rolls,
Since the building vibrates, the seismic isolation floor 4 is almost stationary, so horizontal relative displacement occurs between the seismic isolation floor 4 and the building wall 2. In this case, as shown in FIG.
When the displacement between the building and the building wall 2 approaches and narrows, the end panel 11 and the floor panel 10 collide with each other, but immediately before that, the seismic isolation floor 4 is fixed. Certain protrusion 15
Since the trigger 14 hits against and falls to the building wall 2 side, the support of the inner end of the end panel 11 is removed, and as a result, the end panel 11 is rotated downward by its own weight with the hinge pin 13 as a fulcrum. Therefore, since a movable space is formed between the floor panel 10 and the building wall 2, the horizontal relative displacement can be absorbed. After that, since the end panel 11 is still falling, the floor panel 10 does not interfere with the end panel 11 at the time of horizontal shaking, and the shaking is not transmitted to the seismic isolated floor.

Thus, in the present invention, when the horizontal displacement occurs between the seismic isolation floor 4 and the building wall 2, the end panel 11 serving as the closing plate is released from the support by the trigger 14 to be leveled. Since the movable space is formed between the seismic isolation floor 4 and the building wall 2 by rotating downward from the state, the effective use on the seismic isolation floor 4 which has been the floor panel 5 part of the seismic isolation floor 4 in the past. The range S,
Area S'on the floor panel 10 stretched around the floor panel 5
Can be extended to.

Next, FIG. 3 shows another embodiment of the present invention. Instead of the method of supporting the end panel 11 on the building wall 2 side by the hinge pin 13 in the embodiment of FIG.
The rod 16 is installed horizontally inside the
Further, a character-shaped latch 17 attached to the outer end of the end panel 11 is placed from above and fitted rotatably so as to support the outer end of the end panel 11. .

In the case of the embodiment shown in FIG. 3, since the end panel 11 is supported on the building wall 2 by mounting and supporting the latch 17 on the rod 16, the same as the case of the embodiment shown in FIG. In addition to exerting the above-mentioned effects, the end panel 11 can be installed only by fitting the latch 17 to the rod 16, so that the end panel 11 can be easily attached and detached.

FIG. 4 shows still another embodiment of the present invention, in which the end panel 11 is supported by the building wall 2 as the first method.
Instead of the method in the embodiment shown in FIGS. 3 and 4, the pedestal 18 is horizontally projected on the inner surface of the building wall 2 and the outer edge of the end panel 11 is placed on the pedestal 18. It was designed to be supported.

In the case of the embodiment of FIG. 4, since the end panel 11 is only placed on the upper ends of the pedestal 18 and the trigger 14, the horizontal relative displacement between the seismic isolated floor 4 and the building wall 2 Occurs and triggers
When the end panel 11 is tilted, the end panel 11 is dropped downward to absorb the relative displacement.

In each of the above-described embodiments, the case where the trigger 14 is tilted by the projection 15 is shown, but the trigger 14 may be tilted electrically by detecting a shaking during an earthquake, and in the embodiments, the floor is used. The outer edge of the panel 10 and the inner edge of the end panel 11 are formed with inclined surfaces 10a and 11a, respectively, but if the inclined surfaces are not formed in these portions, relative displacement in the vertical direction can be facilitated. As a result, it can be absorbed, and various modifications can be made without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the displacement absorbing device in the peripheral portion of the base isolation floor of the present invention, the outside of the end panel horizontally arranged so as to close the gap between the building wall and the base isolation floor. The end is rotatably supported on the building wall in the vertical direction, or is placed on a pedestal provided on the building wall, and the inner end of the end panel is separated from the seismic isolated floor and the building wall. It is placed on the upper end of the trigger that is erected so that it will fall when relative displacement occurs between them, and when the trigger falls, the end panel will rotate downward and fall down, and the seismic isolated floor and building Since a movable space is formed between it and the wall, when relative displacement occurs between the seismic isolated floor and the building wall, the trigger falls and the end panel rotates downward or falls. By doing so, it is possible to easily absorb the above relative displacement, and for the subsequent shaking, seismic isolation floor and end pad Since there is no interference with the flannel, the shaking from the building wall side is not transmitted to the seismic isolated floor, and the end panel is displaced downward, so the effective use range on the seismic isolated floor is It has an excellent effect that it can be extended to the peripheral area.

[Brief description of drawings]

FIG. 1 is a partial view showing an outline of an embodiment of a displacement absorbing device for a peripheral portion of a base isolation floor of the present invention, FIG. 2 is a view showing an operating state of FIG. 1, and FIGS. FIG. 5 is a partial view showing another embodiment of the present invention, FIG. 5 is a sectional view showing an installation example of a base isolation floor,
FIG. 6 is a cross-sectional view showing a conventional displacement absorption system around the base isolation floor. 1 ... Building floor (structural floor of building), 2 ... Building wall (structural wall of building), 4 ... Seismic isolation floor, 4a ... Seismic isolation floor body, 10 ... Floor panel, 11
… End panels, 12… brackets, 13… hinge pins, 14…
Trigger, 15 ... Protrusion, 16 ... Rod, 17 ... Latch, 18 ... Cradle.

Claims (2)

[Scope of utility model registration request] 1. An end panel is horizontally arranged between the periphery of a seismic isolated floor supported on a building floor and a building wall, and an outer end of the end panel is vertically arranged on the building wall. In addition to being rotatably mounted, the inner end of the end panel is a trigger installed upright on the building floor so as to fall when relative displacement occurs between the seismic isolated floor and the building wall. Displacement absorber around the base isolation floor, which is placed and supported on the upper end. 2. An end panel is horizontally arranged between the periphery of a base-isolated floor supported on the building floor and the building wall, and the outer end of the end panel is provided on the building wall. A trigger that is placed on a table and erected the inner end of the end panel on the building floor so as to fall when relative displacement occurs between the seismic isolated floor and the building wall. Displacement absorber around seismic isolation floor, which is placed and supported on the upper end of the base.