JP3112722B2 - Seismic isolation floor - Google Patents
Seismic isolation floorInfo
- Publication number
- JP3112722B2 JP3112722B2 JP03246231A JP24623191A JP3112722B2 JP 3112722 B2 JP3112722 B2 JP 3112722B2 JP 03246231 A JP03246231 A JP 03246231A JP 24623191 A JP24623191 A JP 24623191A JP 3112722 B2 JP3112722 B2 JP 3112722B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- seismic isolation
- fixed
- floor surface
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Floor Finish (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築物の床スラブ上に
配設され、地震等による水平方向の振動を減衰させるた
めの免震床に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation floor which is disposed on a floor slab of a building and attenuates horizontal vibrations caused by an earthquake or the like.
【０００２】[0002]
【従来の技術】一般に免震床は、図８に示すように、床
スラブ１に対して変位する免震床面２と、該床スラブ１
に対して固定される固定床面３と、上記免震床面２が変
位可能なように固定床面３との間に形成される隙間４を
閉塞するための張り出し床面５とから構成される。2. Description of the Related Art Generally, as shown in FIG. 8, a base-isolated floor has a base-isolated floor surface 2 displaced with respect to a floor slab 1 and a floor slab 1 as shown in FIG.
And a protruding floor 5 for closing a gap 4 formed between the fixed floor 3 so that the seismic isolation floor 2 can be displaced. You.
【０００３】そして、従来、張り出し床面５は、図８
（ｂ）に示すように、その一側縁が免震床面２にヒンジ
連結されていた。[0003] Conventionally, the overhanging floor surface 5 is shown in FIG.
As shown in (b), one side edge thereof was hinged to the seismic isolation floor 2.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上述した従来
例において、一端縁が免震床面２から張り出される張り
出し床面５は、一側端縁部が固定床面３を摺りながら摺
動する仕様となっているために、該固定床面３との摺動
抵抗の設定が難しく、かつ、経時的に摺動抵抗が変化
し、その管理が難しい上に、地震の際に図８（ｂ）にお
いて破線で示すように、跳ね上げられるために、避難
や、台車の運行を妨げる危険があり、さらに、免震床面
２との連結を蝶番構造とする必要があり製造、あるいは
施工が面倒であるという欠点を有するものであった。However, in the above-described conventional example, the overhanging floor 5 whose one end is overhanging from the seismic isolation floor 2 slides while the one end edge slides on the fixed floor 3. Therefore, it is difficult to set the sliding resistance with the fixed floor 3, and the sliding resistance changes with time, which is difficult to manage. As shown by the broken line in b), there is a danger of evacuation and hindering the operation of the trolley because it is flipped up, and furthermore, it is necessary to connect the seismic isolation floor 2 with a hinge structure, so that manufacturing or construction is It had a drawback that it was troublesome.
【０００５】本発明は、以上の欠点を解消すべくなされ
たものであって、地震発生時において円滑に免震床面が
移動し、かつ、固定床面と免震床面との境界部の状態が
変化しない免震床を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and the seismic isolation floor moves smoothly during an earthquake, and the boundary between the fixed floor and the seismic isolation floor is formed. The purpose is to provide a seismic isolated floor that does not change state.
【０００６】[0006]
【課題を解決するための手段】本発明によれば上記目的
は、床スラブに対して相対移動可能な免震床面と、前記
免震床面を囲むようにして配置され、前記床スラブと一
体の固定床面と、前記免震床面の周縁から張り出されて
前記固定床面との隙間を閉塞する張り出し床面とを有
し、前記固定床面の免震床面側の周縁部上面には、低摩
擦材料からなる滑り支承部を設け、前記張り出し床面
は、裏面に設けられた被支承部において前記滑り支承部
の上面全面を覆うように載置されて滑動自在に支承され
る免震床を提供することにより達成される。According to the present invention, there is provided the above object.
Is disposed so as to surround the seismic isolation floor surface relative to the floor slab, the fixed floor surface integral with the floor slab, and protrudes from the periphery of the seismic isolation floor surface. wherein and an overhanging floor for closing the gap between the fixed floor, the peripheral portion of the upper surface of the MenShinyuka surface side of the fixed floor is low friction Te
A sliding support portion made of a friction material , wherein the overhanging floor surface is provided at a supported portion provided on a back surface of the sliding support portion.
This is achieved by providing a seismic isolation floor that is slidably supported by being mounted so as to cover the entire upper surface of the base .
【０００７】[0007]
【作用】本発明において、免震床面２と固定床面３との
境界部には、張り出し床面５が装着され、免震床面２が
移動可能なように固定床面３との間に形成される隙間４
が閉塞される。上記張り出し床面５は、固定床面３の周
縁部に設けられた滑り支承部６上に被支承部７を載置し
た状態で配設され、固定床面３上を円滑に摺動する。In the present invention, an overhanging floor 5 is attached to the boundary between the base-isolated floor 2 and the fixed floor 3 so that the base-isolated floor 2 can be moved between the floor and the fixed floor 3. Gap 4 formed in
Is closed. The overhanging floor surface 5 is disposed with the supported portion 7 placed on a sliding bearing portion 6 provided on the peripheral portion of the fixed floor surface 3, and slides smoothly on the fixed floor surface 3.
【０００８】この結果、張り出し床面５と固定床面３と
の間の摩擦抵抗を考慮する必要がなくなるので、地震強
度に対する振れ幅の設定、および管理が容易になる。さ
らに、地震発生時には、張り出し床面５は、免震床面２
に追随して横方向のみに移動し、跳ね上がり等が防止さ
れる。As a result, it is not necessary to consider the frictional resistance between the overhanging floor surface 5 and the fixed floor surface 3, so that the setting and management of the swing width with respect to the earthquake intensity become easy. Furthermore, when an earthquake occurs, the overhanging floor 5 is
, And moves only in the lateral direction, thereby preventing a jump or the like.
【０００９】[0009]
【実施例】以下、本発明の望ましい実施例を添付図面に
基づいて詳細に説明する。先ず、本発明が適用された免
震床の全体構成を図１ないし図３により説明する。免震
床は、床スラブ１に対して相対移動自在なスライド構造
体１１と、このスライド構造体１１上に形成される免震
床面２と、この免震床面２を囲むように壁面１２に沿っ
て形成される固定床面３と、上記免震床面２から張り出
される張り出し床面５とから構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. First, the overall structure of a base-isolated floor to which the present invention is applied will be described with reference to FIGS. The seismic isolation floor includes a slide structure 11 that can move relative to the floor slab 1, a seismic isolation floor surface 2 formed on the slide structure 11, and a wall surface 12 surrounding the seismic isolation floor surface 2. And a protruding floor surface 5 protruding from the seismic isolation floor surface 2.
【００１０】スライド構造体１１は、床スラブ１上に固
定された低摩擦部材１３上に滑動自在に支承される移動
脚１４を連結杆１５で連結して一体構造としたもので、
各移動脚１４の上端には、パネルずれ止め用の突起１６
を有するパネル支持板１７が固着されている。また、こ
のスライド構造体１１は、一端が床スラブ１に連結され
る複数の引張スプリング１８により壁面１２側に付勢さ
れており、部屋の中央部に位置決めされる。The slide structure 11 is formed by connecting moving legs 14 slidably supported on a low friction member 13 fixed on the floor slab 1 by connecting rods 15 to form an integral structure.
At the upper end of each moving leg 14, a projection 16 for preventing the panel from slipping is provided.
Is fixedly attached. The slide structure 11 is biased toward the wall 12 by a plurality of tension springs 18 having one end connected to the floor slab 1, and is positioned at the center of the room.
【００１１】免震床面２は、上記スライド構造体１１上
に固定される複数のフロアパネル１９、１９・・からな
り、各フロアパネル１９は、四隅部がパネル支持板１７
上に支承され、かつ衝合隅角部がパネル支持板１７に連
結される連結キャップ２０に押し付けられた状態で装着
されている。The seismic isolation floor 2 is composed of a plurality of floor panels 19, 19,... Fixed on the slide structure 11, and each floor panel 19 has a panel support plate 17 at four corners.
It is supported above and mounted with the abutment corner pressed against a connection cap 20 connected to the panel support plate 17.
【００１２】しかして、地震発生時には、上記免震床面
２、およびその上に設置されている機器の慣性により、
免震床面２は、床スラブ１上を滑りながら原位置に留ま
ろうとし、機器への衝撃を吸収するとともに、低摩擦部
材１３上におけるスライド構造体１１の滑動による振幅
地震エネルギーの摩擦減衰が行われる。However, when an earthquake occurs, due to the inertia of the seismic isolation floor 2 and the equipment installed thereon,
The base-isolated floor 2 tries to stay in the original position while sliding on the floor slab 1, absorbs the impact on the equipment, and attenuates the amplitude seismic energy due to the sliding of the slide structure 11 on the low-friction member 13. Is performed.
【００１３】一方、固定床面３は、床スラブ１上に固定
された固定脚２１上に複数のフロアパネル１９、１９・
・を固定して形成され、上記免震床面２を囲むように設
置される。また、この固定床面３と免震床面２の外周縁
との間には、隙間４が設けられ、免震床面２の移動範囲
が確保されるとともに、該固定床面３の内周縁近傍に
は、ポリアミドイミド等、低摩擦材料からなる滑り支承
部６が設けられる。On the other hand, the fixed floor 3 is provided with a plurality of floor panels 19 on a fixed leg 21 fixed on the floor slab 1.
Is fixed and installed so as to surround the seismic isolation floor 2. A gap 4 is provided between the fixed floor surface 3 and the outer peripheral edge of the seismic isolation floor surface 2 to secure the movement range of the seismic isolation floor surface 2 and the inner peripheral edge of the fixed floor surface 3. A sliding bearing 6 made of a low friction material such as polyamideimide is provided in the vicinity.
【００１４】一方、張り出し床面５は、複数のスライド
パネル８をジョイント部材９により連結して構成されて
おり、上記固定床面３と免震床面２との間の隙間４を閉
塞するように、固定床面３に覆い被さるような状態で免
震床面２から張り出されている。On the other hand, the overhanging floor 5 is formed by connecting a plurality of slide panels 8 with a joint member 9 so as to close the gap 4 between the fixed floor 3 and the seismic isolation floor 2. In addition, it protrudes from the seismic isolation floor 2 so as to cover the fixed floor 3.
【００１５】上記スライドパネル８は、図４、５に詳細
に示すように、上記フロアパネル１９よりも薄板のパネ
ル体２２と、このパネル体２２の裏面中央部に例えばス
テンレス板等を貼着して形成される被支承部７と、上記
パネル体２２の一側縁に装着されるエッジ材２３と、上
記スライド構造体１１のパネル支持板１７に対応して設
けられる複数のセッター２４、２４・・と、これらセッ
ター２４間に固定される補強材２５とから構成されてい
る。As shown in detail in FIGS. 4 and 5, the slide panel 8 has a panel body 22 which is thinner than the floor panel 19 and a stainless plate or the like attached to the center of the rear surface of the panel body 22. And a plurality of setters 24 provided corresponding to the panel support plate 17 of the slide structure 11. And a reinforcing member 25 fixed between the setters 24.
【００１６】この実施例において、セッター２４は、フ
ロアパネル１９よりも薄く形成されるスライドパネル８
を、フロアパネル１９と同様に連結キャップ２０を使用
して固定することができるように、下方に膨隆する底板
材２６を有しており、図６に示すように、セッター２４
の底板材２６をパネル支持板１７上に載せた後、フロア
パネル１９を固定する連結キャップ２０を締め付けるだ
けで、フロアパネル１９が免震床面２の最外周部のフロ
アパネル１９に連結されるように構成される。In this embodiment, the setter 24 is provided with a slide panel 8 which is formed thinner than the floor panel 19.
Has a bottom plate material 26 that bulges downward so that the connection cap 20 can be fixed similarly to the floor panel 19, and as shown in FIG.
After placing the bottom plate member 26 on the panel support plate 17, the floor panel 19 is connected to the outermost peripheral floor panel 19 of the seismic isolation floor surface 2 only by tightening the connection cap 20 for fixing the floor panel 19. It is configured as follows.
【００１７】以上のようにして免震床面２に連結された
スライドパネル８は、図１および図７に示すように、固
定床面３上の滑り支承部６により被支承部７が支承され
た状態となっており、免震床面２が移動する際の固定床
面３との摩擦を可及的に少なくしている。As shown in FIGS. 1 and 7, the slide panel 8 connected to the seismic isolation floor 2 has the supported part 7 supported by the sliding support part 6 on the fixed floor 3 as shown in FIGS. In this state, the friction with the fixed floor 3 when the seismic isolation floor 2 moves is reduced as much as possible.
【００１８】また、上記スライドパネル８同士を連結す
るジョイント部材９は、両側方に開設したパネル挿入開
口２７、２７にパネルを挟みこむように構成されてお
り、スライドパネル８の連結部における浮き上がり等を
防止している。The joint member 9 for connecting the slide panels 8 is configured so as to sandwich the panel between the panel insertion openings 27, 27 opened on both sides. Preventing.
【００１９】さらに、上記スライドパネル８上には、通
常、機器等は設置されないが、機器搬入時等にスライド
パネル８に過大な付加が加えられた際に、該スライドパ
ネル８の基端部、あるいは、パネル体２２が変形しない
ように、ジョイント部材９の裏面には支持突片１０が突
設されており、同様に理由で、図１（ｂ）に示すよう
に、エッジ材２３の裏面にも支持突起２８が設けられて
いる。Further, normally, devices and the like are not installed on the slide panel 8, but when an excessive addition is added to the slide panel 8 at the time of carrying in the device or the like, the base end of the slide panel 8, Alternatively, a support projection 10 is provided on the back surface of the joint member 9 so as to prevent the panel body 22 from being deformed. For the same reason, as shown in FIG. Also, a support protrusion 28 is provided.
【００２０】[0020]
【発明の効果】以上の説明から明らかなように、本発明
による免震床によれば、免震床面から張り出される張り
出し床面を固定床面に設けた滑り支承部において滑動自
在に支承したので、張り出し床面と固定床面との間の摩
擦が少なくなり、免震床面を円滑に移動させることがで
きる。As is apparent from the above description, according to the seismic isolation floor of the present invention, the overhanging floor protruding from the seismic isolation floor is slidably supported on the sliding bearing provided on the fixed floor. As a result, friction between the overhanging floor and the fixed floor is reduced, and the seismic isolation floor can be moved smoothly.
【００２１】また、上記固定床面との摩擦を考慮する必
要がないので、免震床の地震時の振れ等を正確に把握す
ることができる。さらに、上記張り出し床面は、固定床
面の滑り支承部上を平行に滑動するために、地震時の跳
ね上がり等が防止され、避難時の安全性を高めることが
できる。Further, since it is not necessary to consider the friction with the fixed floor, it is possible to accurately grasp the vibration of the base-isolated floor during an earthquake. Further, since the overhanging floor slides in parallel on the sliding support portion of the fixed floor, it is possible to prevent a jump-up or the like in the event of an earthquake, thereby improving safety during evacuation.
【００２２】また、張り出し床面を複数のスライドパネ
ルにより形成する場合において、各スライドパネルをジ
ョイント部材により連結すると、スライドパネルの連結
部における浮き上がり、あるいはスライドパネルの反り
等を確実に防止することができる。Further, in the case where the overhanging floor surface is formed by a plurality of slide panels, connecting the slide panels with a joint member makes it possible to reliably prevent the slide panel from being lifted up at the connecting portion or the slide panel from being warped. it can.
【００２３】さらに、上記ジョイント部材の裏面に支持
突片を設けた場合には、張り出し床面の変形等を確実に
防止することができる。Further, when a support projection is provided on the back surface of the joint member, deformation of the overhanging floor surface can be reliably prevented.
【図１】本発明の要部を示す説明図であり、（ａ）は断
面図、（ｂ）は（ａ）のＡ部詳細図である。FIGS. 1A and 1B are explanatory views showing a main part of the present invention, wherein FIG. 1A is a cross-sectional view and FIG. 1B is a detailed view of a portion A in FIG.
【図２】免震床の全体構成を示す斜視図である。FIG. 2 is a perspective view showing an entire configuration of a seismic isolation floor.
【図３】免震床面の境界部を示す斜視図である。FIG. 3 is a perspective view showing a boundary portion of a base isolation floor.
【図４】スライドパネルを裏面から見た斜視図である。FIG. 4 is a perspective view of the slide panel as viewed from the back.
【図５】図４の要部拡大図である。FIG. 5 is an enlarged view of a main part of FIG. 4;
【図６】図３のＢ−Ｂ線断面図である。FIG. 6 is a sectional view taken along line BB of FIG. 3;
【図７】図２のＣ−Ｃ線断面図である。FIG. 7 is a sectional view taken along line CC of FIG. 2;
【図８】従来例を示す説明図で、（ａ）は免震床面の周
縁部を示す断面図、（ｂ）は（ａ）の要部拡大図であ
る。8A and 8B are explanatory views showing a conventional example, in which FIG. 8A is a cross-sectional view showing a peripheral portion of a seismic isolation floor, and FIG. 8B is an enlarged view of a main part of FIG.
１ 床スラブ ２ 免震床面 ３ 固定床面 ４ 隙間 ５ 張り出し床面 ６ 滑り支承部 ７ 被支承部 ８ スライドパネル ９ ジョイント部材 １０ 支持突片 DESCRIPTION OF SYMBOLS 1 Floor slab 2 Seismic isolation floor 3 Fixed floor 4 Gap 5 Overhanging floor 6 Sliding bearing part 7 Supported part 8 Slide panel 9 Joint member 10 Support projection
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−24453（ＪＰ，Ａ) 特開 平４−1357（ＪＰ，Ａ) 実開 昭64−56773（ＪＰ，Ｕ) 実開 昭56−37658（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04F 15/024 605 E04F 15/024 606 E04F 15/18 601 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-24453 (JP, A) JP-A-4-1357 (JP, A) Fully open 64-6773 (JP, U) Really open Showa 56- 37658 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) E04F 15/024 605 E04F 15/024 606 E04F 15/18 601
Claims (2)
と、 前記免震床面を囲むようにして配置され、前記床スラブ
と一体の固定床面と、 前記免震床面の周縁から張り出されて前記固定床面との
隙間を閉塞する張り出し床面とを有し、 前記固定床面の免震床面側の周縁部上面には、低摩擦材
料からなる滑り支承部を設け、 前記張り出し床面は、裏面に設けられた被支承部におい
て前記滑り支承部の上面全面を覆うように載置されて滑
動自在に支承される免震床。1. A seismic isolation floor surface which is relatively movable with respect to a floor slab, a fixed floor surface which is arranged so as to surround the seismic isolation floor surface and is integral with the floor slab, and a peripheral edge of the seismic isolation floor surface. A protruding floor surface that protrudes to close a gap with the fixed floor surface, and a low friction material is provided on an upper surface of a peripheral portion of the fixed floor surface on the seismic isolation floor side.
A sliding support portion made of a material, and the overhanging floor surface is mounted on the supported portion provided on the back surface so as to cover the entire upper surface of the sliding support portion and is slidably supported. Seismic isolation floor.
ルをジョイント部材により連結して構成され、かつ、前
記ジョイント部材の裏面には、支持突片を突設してなる
請求項１記載の免震床。2. The relief according to claim 1, wherein the overhanging floor surface is formed by connecting a plurality of slide panels with a joint member, and a support projection is provided on the back surface of the joint member. Crater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03246231A JP3112722B2 (en) | 1991-09-25 | 1991-09-25 | Seismic isolation floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03246231A JP3112722B2 (en) | 1991-09-25 | 1991-09-25 | Seismic isolation floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0579172A JPH0579172A (en) | 1993-03-30 |
| JP3112722B2 true JP3112722B2 (en) | 2000-11-27 |
Family
ID=17145466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03246231A Expired - Fee Related JP3112722B2 (en) | 1991-09-25 | 1991-09-25 | Seismic isolation floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3112722B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100980387B1 (en) * | 2008-07-11 | 2010-09-07 | 비젼아이디앤씨(주) | Vibration Damper Structure for Access Floor |
| KR102026714B1 (en) * | 2019-04-26 | 2019-09-30 | 주식회사 에스앤와이시스템 | Access Floor with Seismic Isolator with Link Device between Activation Area and Deactivation Area |
-
1991
- 1991-09-25 JP JP03246231A patent/JP3112722B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0579172A (en) | 1993-03-30 |
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