JPH053498B2 - - Google Patents
Info
- Publication number
- JPH053498B2 JPH053498B2 JP21108186A JP21108186A JPH053498B2 JP H053498 B2 JPH053498 B2 JP H053498B2 JP 21108186 A JP21108186 A JP 21108186A JP 21108186 A JP21108186 A JP 21108186A JP H053498 B2 JPH053498 B2 JP H053498B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- seismic isolation
- supported
- floor slab
- installation
- 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 - Lifetime
Links
- 238000002955 isolation Methods 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 31
- 238000005192 partition Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Floor Finish (AREA)
Description
【発明の詳細な説明】
≪産業上の利用分野≫
本発明は建屋内に免震機能を有する構造物に関
し、詳しくは大重量物を設置することができる床
レベルの免震構造に関する。DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a structure having a seismic isolation function within a building, and more particularly to a floor-level seismic isolation structure in which heavy objects can be installed.
≪従来の技術≫
重要な機器等を収納する室のみを免震すること
が必要であつて、建物全体を免震する必要性がな
い場合には、第2図に示すような床レベルでの免
震、除震構造が用いられている。≪Conventional technology≫ When it is necessary to seismically isolate only a room that houses important equipment, etc., and there is no need to seismically isolate the entire building, it is necessary to seismically isolate a room that houses important equipment, etc., and there is no need to seismically isolate the entire building. Seismic isolation and vibration isolation structures are used.
図で、符号1は建屋の柱であり、この柱1間に
掛け渡した梁2によつて支持された床スラブ3の
上に免震装置4′を配置し、その上に、周壁との
間にクリアランスを有する設置床5′を載置固定
している。被支持物体6はこの設置床5′上に設
置されるものである。 In the figure, reference numeral 1 is a pillar of the building, and a seismic isolation device 4' is placed on a floor slab 3 supported by a beam 2 spanning between these pillars 1, and a seismic isolation device 4' is placed on top of it. An installation floor 5' having a clearance therebetween is placed and fixed. The supported object 6 is placed on this installation floor 5'.
免震装置4′は、一般的に上下、及び水平方向
にバネとダンパーを有するもので、垂直荷重を支
えながら、地震時の振動を吸収して、設置床5′
の上に設置した被支持物体6を効果的に免震し、
地震対策上有効である。 The seismic isolation device 4' generally has springs and dampers in the vertical and horizontal directions, and supports the vertical load while absorbing vibrations during an earthquake, and is able to support the installation floor 5'.
Effectively seismically isolates the supported object 6 installed on top of the
It is effective in earthquake countermeasures.
≪発明が解決しようとする問題点≫
近時では原子力施設も免震工法の重要な対象に
なつており、軽水炉、高速増殖炉では施設の安全
性が最も重要な課題であり、これに寄与するもの
として免震工法が着目され、かなりの重量物を対
象とする床レベルでの免震構造が望まれている。≪Problems to be solved by the invention≫ In recent years, nuclear facilities have also become important targets for seismic isolation methods, and the safety of facilities is the most important issue for light water reactors and fast breeder reactors. As such, seismic isolation methods are attracting attention, and a floor-level seismic isolation structure that can handle quite heavy objects is desired.
しかし、叙述した従来の免震構造は、柱1間に
架設した梁2上に構築された床スラブ3上で構成
されており、被支持物体6、設置床5′及び免震
装置4′の重量を、柱に直に支持させる構造では
なくて、この重量によつて内部に曲げ応力を生じ
てしまう梁2や床スラブ3で支持するようにして
いたため、柱1自体が有する耐荷能力には余裕が
ある場合であつても、これら梁2や床スラブ3に
おける耐荷能力を確保するためにスラブ厚を厚く
したり、梁2の耐力を増強することが必要であつ
た。 However, the conventional seismic isolation structure described above is constructed on a floor slab 3 constructed on a beam 2 installed between columns 1, and includes a supported object 6, an installation floor 5', and a seismic isolation device 4'. The weight was not supported directly by the columns, but by the beams 2 and floor slabs 3, which would cause internal bending stress due to the weight, so the load-bearing capacity of the columns 1 themselves was limited. Even when there is a margin, it is necessary to increase the thickness of the slab or increase the strength of the beam 2 in order to ensure the load-bearing capacity of the beam 2 and the floor slab 3.
また、設置床5′自体単板構造であつたため、
この上に載置される重量機器を適切に支持させる
ためには、この設置床5′自体も上記梁2や床ス
ラブ3と同様に、その板厚等を厚く形成すること
で対処する必要があつた。そしてこれにより、さ
らに上記床スラブ3や梁2の強度を高く確保しな
ければならなかつた。 In addition, since the installation floor 5' itself was a single-panel structure,
In order to properly support the heavy equipment placed on it, it is necessary to make the installation floor 5' itself thicker, similar to the beams 2 and floor slabs 3. It was hot. As a result, it was necessary to further ensure the strength of the floor slab 3 and the beam 2.
また、これら設置される被支持物体6に接続す
る信号線ケーブルの保護の点でも、ケーブルダク
トを設置床5′下の免震装置用空間9の中に置く
だけであつて、耐火、耐熱対策上特別の保護構造
とはなつておらず、従つてこの空間9をケーブル
配線用のサービススペースとして使用することは
できなかつた。 In addition, in terms of protecting the signal line cables connected to the supported objects 6 installed, it is possible to simply place the cable duct in the space 9 for the seismic isolation device under the installation floor 5', and take fireproof and heatproof measures. Moreover, it does not have a special protective structure, and therefore, this space 9 cannot be used as a service space for cable wiring.
本発明は上記事情に鑑みてなされたものであつ
て、その目的は床レベルでの免震機能を、耐荷能
力及び耐火能力を十分に確保して得ることができ
る、建屋内に免震機能を有する構造物を提供する
にある。 The present invention has been made in view of the above circumstances, and its purpose is to provide a seismic isolation function in a building that can obtain a seismic isolation function at the floor level while ensuring sufficient load-bearing capacity and fire resistance capacity. To provide a structure with
≪問題点を解決するための手段≫
上記目的を達成するために本発明は、建屋内の
免震すべき室内空間に下方から臨ませて柱を設
け、該柱の頂部にこれを支承させて免震積層ゴム
を設置すると共に、該免震積層ゴム上に二重構造
床を載置して構成され、該二重構造床が、上記室
内空間を区画形成する室内周壁との間に水平方向
変位を許容する空〓を形成しつつ、上記免震積層
ゴム上に配置された床版と、該床版上方で被支持
物体を載置する設置床と、互いに間隔を隔てて並
設され該設置床を上記床版上に支持する複数の支
柱と、該床版と該設置床との間に閉断面中空の耐
火区画を区画形成する耐火壁とからなることを特
長とする。<<Means for Solving the Problems>> In order to achieve the above object, the present invention provides a column facing from below into an indoor space in a building that is to be seismically isolated, and supports the column at the top of the column. In addition to installing seismic isolation laminated rubber, a double structure floor is placed on the seismic isolation laminated rubber, and the double structure floor is horizontally spaced between the indoor peripheral wall that partitions the indoor space. A floor slab placed on the seismically isolated laminated rubber and an installation floor on which a supported object is placed above the floor slab are arranged side by side at a distance from each other while forming a space that allows displacement. It is characterized by comprising a plurality of supports that support the installation floor on the floor slab, and a fireproof wall that defines a hollow fireproof section with a closed cross section between the floor slab and the installation floor.
≪作用≫
本発明によれば、被支持物体を載置する設置床
は床版上に多数の支柱で支持されていて、この構
造は周知のように、二重構造床ゆえに構造重量は
増加してしまうものの、効果的に耐荷能力を向上
できるものであつて、このような一般的な構成に
組み合わせて、設置床と床版との間に設けたコン
クリート製の耐火隔壁でそれら間に中空断面を画
成させることにより耐荷能力としてはさらに向上
している。そして殊に、このような重量増加のあ
る床構造を、下向き荷重の支承に有利な柱で直に
支持させるようにしたので、従来のように被支持
物体を免震支持する構造を、床スラブや梁で、若
しくはこれらを介して間接的に柱で支持させる場
合に比較して、格段に高い耐荷能力を簡単かつ適
切に得ることができ、重量のある被支持物体を建
屋内で構造上有効に免震しつつ支持することがで
きる。<<Operation>> According to the present invention, the installation floor on which the supported object is placed is supported by a large number of supports on the floor slab, and as is well known, this structure has a double structure floor, so the structural weight increases. However, it is possible to effectively improve the load-bearing capacity, and in combination with this general configuration, a concrete fireproof bulkhead is installed between the installation floor and the floor slab, and a hollow cross-section is installed between them. The load-bearing capacity is further improved by defining the In particular, we decided to directly support the floor structure, which has an increased weight, with columns that are advantageous for supporting downward loads. Compared to the case of supporting with pillars or beams, or indirectly with columns via these, it is possible to easily and appropriately obtain a significantly higher load-bearing capacity, and it is possible to achieve structurally effective support for heavy supported objects within the building. It can be supported while providing seismic isolation.
さらに、二重構造床内に耐火区画を形成する耐
火壁を備えているので、この耐火壁による耐火区
画を、各種配線のサービススペースとして適切に
使用することができる。 Furthermore, since the double structure floor is provided with a fireproof wall that forms a fireproof compartment, the fireproof compartment formed by the fireproof wall can be appropriately used as a service space for various types of wiring.
≪実施例≫
以下、この発明の好適な実施例について図面を
参照にして説明する。建屋7内の免震すべき所定
室内8には、この室内8に下方から臨ませて、垂
直な複数の柱1′が立設されており、これら柱
1′は第1図に示したように通常の建物と同様、
基礎から立ち上げられている下部柱の頂部に一連
に積み上げて建築されて、加わる荷重が直接基礎
で支持されるようになつている。そしてこの柱
1′の頂部に免震積層ゴム4を固定し、その上に
床版5を含む二重構造床が設置されている。<<Example>> Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. A plurality of vertical pillars 1' are erected in a designated room 8 in the building 7 that is to be seismically isolated, facing the room 8 from below. Just like a normal building,
They are built by stacking a series of columns on top of the lower pillars raised from the foundation, so that the applied load is directly supported by the foundation. A seismic isolation laminated rubber 4 is fixed to the top of this column 1', and a double structure floor including a floor slab 5 is installed on top of the seismic isolation laminated rubber 4.
二重構造床は、室内8を区画形成する室内8の
周壁との間に水平方向変位を許容する空〓を形成
しつつ、免震積層ゴム4上に配置された床版5
と、床版5上方で被支持物体6を載置する設置床
10と、互いに間隔を隔てて並設されて、設置床
10を床版5上に支持する複数の支柱11とから
構成されている。具体的には第1図を示すよう
に、床版5の上には更に被支持物体6を設置する
ための設置床10を複数の支柱11によつて接続
固定し、床版5と設置床10とで二重構造の免震
床を構成している。そして、適宜に床版5と設置
床10との間をコンクリートで画成区分する耐火
隔壁12を設け、床版5と設置床10と隔壁12
とで囲むケーブル設置スペースを確保している。 The double structure floor has a floor slab 5 placed on the seismic isolation laminated rubber 4 while forming a space that allows horizontal displacement between the floor and the peripheral wall of the room 8 that partitions the room 8.
, an installation floor 10 on which a supported object 6 is placed above the floor slab 5, and a plurality of supports 11 arranged in parallel at intervals and supporting the installation floor 10 on the floor slab 5. There is. Specifically, as shown in FIG. 1, on top of the floor slab 5, an installation floor 10 for installing a supported object 6 is connected and fixed by a plurality of supports 11, and the floor slab 5 and the installation floor are connected and fixed. 10 constitutes a double structure seismic isolation floor. Then, a fireproof bulkhead 12 is provided to divide the space between the floor slab 5 and the installation floor 10 with concrete as appropriate.
Secure cable installation space surrounded by
床版5と設置床10はその周辺に室内8と周壁
との間にクリアランスを形成するように形成配置
され、このクリアランスは、建屋7や被支持物体
6の耐震重要度に応じて設定される免震積層ゴム
4の揺れ幅を許容する。 The floor slab 5 and the installation floor 10 are formed and arranged so as to form a clearance between the room 8 and the surrounding wall around the floor, and this clearance is set according to the seismic importance of the building 7 and the supported object 6. The vibration amplitude of the seismic isolation laminated rubber 4 is allowed.
柱1′が床スラブ3面から上方へ突出する長さ
の程度によつては、各柱1′の頂部近くを繋ぎ梁
13で連結補強し、強度を確保している。 Depending on the extent to which the columns 1' project upward from the floor slab 3 surface, the vicinity of the top of each column 1' is connected and reinforced with a connecting beam 13 to ensure strength.
以上のように本実施例にあつては第1図に示す
ように、従来のように被支持物体6が載置され
る、免震装置に支持された設置床は単板構造では
なく二重構造床となつており、設置床10は床版
5上に多数の支柱11で支持されていて、この構
造は周知のように、床上で多数の柱で天井を支持
すれば、構造重量は増加してしまうものの、天井
上の荷重を分散化できて天井上に相当の重量物を
載置しても効果的に耐荷能力を向上できる一般的
な対処である。そして本実施例にあつては、この
ような一般的な構成に組み合わせて、設置床10
と床版5との間に設けたコンクリート製の耐火隔
壁12がそれら間に中空断面を画成するので、こ
れら床版5と設置床10とで構成した床構造自体
としては、重量的には重くなるものの、設置床1
0上に載置された被支持物体6の重量の分散化に
より、耐荷能力としてはさらに向上している。そ
して殊に、本実施例にあつては、このような重量
増加のある床構造を、下向き荷重の支承に有利な
柱1′で直に支持させるようにしたので、従来の
ように被支持物体を免震支持する構造を、床スラ
ブや梁で、若しくはこれらを介して間接的に柱で
支持させる場合に比較して、格段に高い耐荷能力
を簡単かつ適切に得ることができ、重量のある被
支持物体6を建屋7内で構造上有効に免震しつつ
支持することができるように構成されている。 As described above, in this embodiment, as shown in FIG. 1, the installation floor supported by the seismic isolation device on which the supported object 6 is placed is not a single-panel structure as in the conventional case, but a double-layer structure. The installation floor 10 is supported by a large number of columns 11 on the floor slab 5, and as is well known, if the ceiling is supported by a large number of columns on the floor, the structural weight increases. However, this is a general measure that can disperse the load on the ceiling and effectively improve the load-bearing capacity even when a considerable amount of weight is placed on the ceiling. In this embodiment, in combination with such a general configuration, the installation floor 10
Since the concrete fireproof bulkhead 12 provided between the floor slab 5 and the floor slab 5 defines a hollow section therebetween, the floor structure itself composed of the floor slab 5 and the installation floor 10 has a weight of Although it is heavy, the installation floor 1
By dispersing the weight of the supported object 6 placed on the 0, the load carrying capacity is further improved. In particular, in this embodiment, the floor structure with such increased weight is directly supported by the columns 1', which are advantageous in supporting downward loads, so that the supported object Compared to the case where the seismic isolation support structure is supported by floor slabs and beams, or indirectly by columns via these, it is possible to easily and appropriately obtain a significantly higher load-bearing capacity. It is configured such that the supported object 6 can be supported within the building 7 while being effectively seismically isolated from the structure.
さらに二重構造床内に耐火区画を形成する耐火
隔壁12を備えているので、この耐火隔壁12に
よる耐火区画を、各種配線のサービススペースと
して適切に使用することができる。 Furthermore, since the double structure floor is provided with a fireproof partition 12 that forms a fireproof partition, the fireproof partition formed by the fireproof partition 12 can be appropriately used as a service space for various types of wiring.
≪効果≫
以上詳しく述べたように、本発明の建屋内に免
震機能を有する構造物によれば、被支持物体を載
置する設置床は床版上に多数の支柱で支持されて
いて、この構造は周知のように、二重構造床ゆえ
に構造重量は増加してしまうものの、効果的に耐
荷能力を向上できるものであつて、このような一
般的な構成に組み合わせて、設置床と床版との間
に設けたコンクリート製の耐火隔壁でそれら間に
中空断面を画成させることにより耐荷能力をさら
に向上させることができる。そして殊に、このよ
うな重量増加のある床構造を、下向き荷重の支承
に有利な柱で直に支持させるようにしたので、従
来のように被支持物体を免震支持する構造を、床
スラブや梁で、若しくはこれらを介して間接的に
柱で支持させる場合に比較して、格段に高い耐荷
能力を簡単かつ適切に得ることができ、重量のあ
る被支持物体を建屋内で構造上有効に免震しつつ
支持することができて、建屋の一部室内に、かな
りの重量物を設置可能とする床レベルでの免震構
造を得ることができる。<<Effects>> As described in detail above, according to the structure having a seismic isolation function in a building of the present invention, the installation floor on which the supported object is placed is supported by a large number of columns on the floor slab, As is well known, although this structure increases the structural weight due to the double structure floor, it can effectively improve the load-bearing capacity. The load-bearing capacity can be further improved by defining a hollow section between the concrete fireproof bulkhead and the plate. In particular, we decided to directly support the floor structure, which has an increased weight, with columns that are advantageous for supporting downward loads. Compared to the case of supporting with pillars or beams, or indirectly with columns via these, it is possible to easily and appropriately obtain a significantly higher load-bearing capacity, and it is possible to achieve structurally effective support for heavy supported objects within the building. It is possible to obtain a seismic isolation structure at the floor level that can be supported while being seismically isolated, and allows installation of considerable heavy objects in some rooms of the building.
また、二重構造床の閉断面中空部内に耐火区画
を形成する耐火壁を備えているので、この耐火壁
による耐火区画を、各種配線サービススペースと
して適切に使用することができ、火災にも強い、
床レベルでの免震構造を得ることができる。 In addition, since the double structure floor is equipped with a fireproof wall that forms a fireproof compartment within the closed cross-section hollow part, the fireproof compartment created by this fireproof wall can be used appropriately as a space for various wiring services, and is resistant to fire. ,
It is possible to obtain a seismic isolation structure at the floor level.
第1図は本発明に係る建屋内に免震機能を有す
る構造物を示す概略の縦断面図、第2図は従来の
床レベルでの免震構造を示す縦断面図である。
1……柱、1′……柱、2……梁、3……床ス
ラブ、4……免震積層ゴム、4′……免震装置、
5……床版、5′……設置床、6……被支持物体、
7……建屋、8……室内、9……免震装置用空
間、10……設置床、11……支柱、12……耐
火隔壁、13……繋ぎ梁。
FIG. 1 is a schematic vertical cross-sectional view showing a structure having a seismic isolation function in a building according to the present invention, and FIG. 2 is a vertical cross-sectional view showing a conventional seismic isolation structure at the floor level. 1... Column, 1'... Column, 2... Beam, 3... Floor slab, 4... Seismic isolation laminated rubber, 4'... Seismic isolation device,
5... Floor slab, 5'... Installation floor, 6... Supported object,
7...Building, 8...Indoor, 9...Seismic isolation device space, 10...Installation floor, 11...Column, 12...Fireproof bulkhead, 13...Connection beam.
Claims (1)
せて柱を設け、 該柱の頂部にこれを支承させて免震積層ゴムを
設置すると共に、 該免震積層ゴム上に二重構造床を載置して構成
され、 該二重構造床が、上記室内空間を区画形成する
室内周壁との間に水平方向変位を許容する空〓を
形成しつつ、上記免震積層ゴム上に配置された床
版と、該床版上方で被支持物体を載置する設置床
と、互いに間隔を隔てて並設され該設置床を上記
床版上に支持する複数の支柱と、該床版と該設置
床との間に閉断面中空の耐火区画を区画形成する
耐火壁とからなる ことを特徴とする建屋内に免震機能を有する構造
物。[Scope of Claims] 1. A pillar is provided facing from below into an indoor space to be seismically isolated in a building, and a seismic isolation laminated rubber is installed with the pillar supported at the top of the pillar, and the seismic isolation laminated rubber is installed. It is constructed by placing a double structure floor on top, and the double structure floor forms an air space that allows horizontal displacement between the indoor peripheral wall that partitions the indoor space, and the seismic isolation A floor slab placed on the laminated rubber, an installation floor on which an object to be supported is placed above the floor slab, and a plurality of columns arranged in parallel at intervals and supporting the installation floor on the floor slab. A structure having a seismic isolation function in a building, comprising: a fireproof wall defining a closed cross-section hollow fireproof compartment between the floor slab and the installation floor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21108186A JPS6367369A (en) | 1986-09-08 | 1986-09-08 | Structure having earthquake damping function in building |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21108186A JPS6367369A (en) | 1986-09-08 | 1986-09-08 | Structure having earthquake damping function in building |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6367369A JPS6367369A (en) | 1988-03-26 |
JPH053498B2 true JPH053498B2 (en) | 1993-01-14 |
Family
ID=16600094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21108186A Granted JPS6367369A (en) | 1986-09-08 | 1986-09-08 | Structure having earthquake damping function in building |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6367369A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01268901A (en) * | 1988-04-18 | 1989-10-26 | Hayashi Kikai Sekkei Jimusho:Kk | Airport constructed with floor board adjustable two-dimensionally and telescopically |
JP5464814B2 (en) * | 2008-03-25 | 2014-04-09 | 大成建設株式会社 | Composite structure building |
JP5403372B2 (en) * | 2010-06-22 | 2014-01-29 | 清水建設株式会社 | Truss beam structure |
-
1986
- 1986-09-08 JP JP21108186A patent/JPS6367369A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6367369A (en) | 1988-03-26 |
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