JP7802645B2 - Electromagnetic shield panel mounting structure - Google Patents
Electromagnetic shield panel mounting structureInfo
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- JP7802645B2 JP7802645B2 JP2022176465A JP2022176465A JP7802645B2 JP 7802645 B2 JP7802645 B2 JP 7802645B2 JP 2022176465 A JP2022176465 A JP 2022176465A JP 2022176465 A JP2022176465 A JP 2022176465A JP 7802645 B2 JP7802645 B2 JP 7802645B2
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Description
本発明は、建物内部に設置される電磁シールドルーム（以下、シールドルームと称す。）において、地震により生じる前記建物の層間水平変形に対して、電磁シールド性能保持を可能とする電磁シールドパネル（以下、シールドパネルと称す。）の取付構造に関する。 The present invention relates to a mounting structure for electromagnetic shielding panels (hereinafter referred to as shielding panels) in an electromagnetically shielded room (hereinafter referred to as a shielding room) installed inside a building, which enables the maintenance of electromagnetic shielding performance against horizontal deformation between the floors of the building caused by an earthquake.
鉄板等の導電体から成るシールドパネルによって室内外を電磁的に区画されるシールドルームの電磁シールド壁（以下、シールド壁と称す。）は、前記シールドルームを内包する建物が地震により層間水平変形を生じると、前記シールド壁を支える間柱（縦胴縁）の上下端が前記建物の躯体に定着されている場合、前記シールド壁を覆う前記シールドパネルも同様に水平方向に変形しようとする。 When an earthquake causes horizontal inter-story deformation in the building that contains the electromagnetic shielding wall (hereinafter referred to as the shielding wall), which electromagnetically separates the indoor and outdoor spaces with shielding panels made of conductive materials such as steel plates, the upper and lower ends of the studs (vertical furring strips) that support the shielding wall are fixed to the building's framework, and the shielding panels that cover the shielding wall also tend to deform horizontally.
また、シールドルームは地上２階以上の上層階にも設置される場合があり、建物上層階は地震による層間水平変形が地下階や地上１階よりも大きくなるため、前記シールド壁を覆う前記シールドパネルの水平方向変形が、より大きくなることは容易に推測される。 In addition, shielded rooms may also be installed on upper floors, such as the second floor or higher. Since the horizontal deformation between stories due to an earthquake is greater on the upper floors of a building than on the basement or first floor, it is easy to imagine that the horizontal deformation of the shielding panels covering the shielding wall will be greater.
地震により発生するシールドルームの大きな層間水平変形による電磁波の漏洩を防止するための技術として、例えば特許文献１記載の発明がある。特許文献１では、電波暗室のシールド壁において、上下左右に相隣接するシールド部材（シールドパネル）の縁端相互間に隙間を確保し、前記隙間を縦胴縁および横胴縁と押え縁とで、シールドガスケットを介して挟み込んで覆う接合部構造が開示されている。 One example of a technology for preventing electromagnetic wave leakage caused by large horizontal deformation between layers of a shielded room due to an earthquake is the invention described in Patent Document 1. Patent Document 1 discloses a joint structure in which gaps are created between the edges of adjacent shielding members (shielding panels) on the top, bottom, left, and right sides of the shielding wall of an anechoic chamber, and these gaps are covered by sandwiching them between vertical and horizontal furring strips and a pressure edge via a shielding gasket.
上記のように、シールドガスケットを介して縦胴縁および横胴縁と押え縁とで挟まれた前記シールド部材は、設定された前記縁端相互間の隙間の範囲で、シールド部材面内での滑り移動や回転が可能なので、地震時に電波暗室に層間水平変形が生じても、シールド部材に力が作用し難く損傷を免れることができ、かつ、地震後でもシールド壁としての機能を保持できるとしている。 As described above, the shielding member, which is sandwiched between the vertical and horizontal furring strips and the clamping edge via the shielding gasket, is able to slide and rotate within the surface of the shielding member within the set gap between the edges. Therefore, even if horizontal deformation occurs between the layers of the anechoic chamber during an earthquake, the shielding member is less likely to be subjected to force, preventing damage and allowing the shielding member to maintain its function as a shield wall even after the earthquake.
特許文献１記載の発明におけるシールド部材（シールドパネル）は、薄い鉄板等に補強板を貼付けたもので、１枚の大きさが比較的小さなパネルである。従って、大きなシールド壁を構築するためには、多数の縦胴縁および横胴縁と押え縁が必要とされるので、シールドパネルの製作および施工において、コストや工期の面で改善の余地があった。 The shielding member (shielding panel) in the invention described in Patent Document 1 is a relatively small panel made by attaching a reinforcing plate to a thin steel plate or the like. Therefore, constructing a large shielding wall requires a large number of vertical and horizontal furring strips and retaining edges, leaving room for improvement in terms of cost and construction time in the manufacture and construction of shielding panels.
シールドパネル製作および施工におけるコストや工期の縮減の方法としては、シールドパネル１枚当たりの寸法を大きくすることが考えられるが、１枚当たりの寸法を大きくした場合、重量が重くなるだけでなく、シールドパネル面外への曲げ変形が生じ易いという問題がある。 One way to reduce costs and construction time in shield panel manufacturing and construction is to increase the dimensions of each shield panel, but increasing the dimensions of each panel not only increases the weight, but also increases the likelihood of bending deformation outside the shield panel surface.
また、大きくした寸法の前記シールドパネルを、シールドルームのシールド壁を支える間柱に直接取付ければ、前記間柱は上下端が建物の躯体に定着されているため建物の層間水平変形に伴って傾斜するので、シールドルーム壁面を覆う前記シールドパネルは歪みを生じることとなり、シールド性能の保持は困難になる。 Furthermore, if the enlarged shielding panels were attached directly to the studs supporting the shielding walls of the shielded room, the studs would tilt with horizontal deformation between the building's floors because their upper and lower ends are fixed to the building's framework. This would cause distortion in the shielding panels covering the shielded room walls, making it difficult to maintain their shielding performance.
本発明は、これらの問題を解決し、かつ、建物の大きな層間水平変形（例えば、１／１００）が生じた場合でも、電磁シールド性能を保持できるシールドパネルの取付構造を提供するものである。 The present invention solves these problems and provides a mounting structure for shielding panels that can maintain electromagnetic shielding performance even when large horizontal deformations (e.g., 1/100) occur between the building's stories.
上記課題を解決するための本発明の手段は、シールドルームが設置される建物階の当該
シールドルームのシールド壁において、
（１）シールド壁を覆うシールドパネルであって、左右に隣接、または左右および上下に隣接する前記シールドパネルの縁端相互間に一定の隙間が確保され、前記隙間は縦胴縁および横胴縁と押え縁とで、シールドガスケットを介して挟み込まれ覆われている。
（２）前記シールドパネルは、石膏ボード等の補強面材に接着された鉄板等金属系の導電体であって、前記縦胴縁および横胴縁で囲まれた枠の中に組み込まれた軽鉄などの縦補強材に、ビス等を用いて取付けられ一体化されている。
（３）前記縦胴縁の上下端は前記建物階の躯体に定着されており、前記縦補強材の上下端部は、前記建物階の床および天井の近傍に設置された前記横胴縁に固定された、もしくは前記床および上階床に固定されたＵ字状溝金物に、前記横胴縁の材軸方向および上下方向には非拘束状態で嵌め込まれており、かつ、前記縦補強材の上端上方には、前記Ｕ字状溝金物の底面との間に一定の隙間が確保されている。
以上の構成を含むことを特徴とする、シールドパネルの取付構造である。
The means of the present invention for solving the above problem is to provide a shielding wall of a shielding room on a building floor where the shielding room is installed,
(1) A shield panel covering a shield wall, in which a certain gap is secured between the edges of adjacent shield panels on the left and right, or adjacent left and right and top and bottom, and the gap is sandwiched and covered by vertical and horizontal furring strips and a pressing edge via a shield gasket.
(2) The shielding panel is a metal conductor such as an iron plate glued to a reinforcing surface material such as gypsum board, and is attached to and integrated with a vertical reinforcing material such as light steel incorporated into a frame surrounded by the vertical and horizontal furring strips using screws, etc.
(3) The upper and lower ends of the vertical furring strips are fixed to the main body of the building floor, and the upper and lower ends of the vertical reinforcement are fitted into U-shaped groove metal fittings fixed to the horizontal furring strips installed near the floor and ceiling of the building floor, or fixed to the floor and the floor of the upper floor, without being constrained in the axial direction and vertical direction of the horizontal furring strips, and a certain gap is secured above the upper end of the vertical reinforcement and between it and the bottom surface of the U-shaped groove metal fitting.
The mounting structure for a shield panel is characterized by including the above configuration.
以上のように本発明は、シールドパネルが、前記縦胴縁および横胴縁で囲まれた枠の中に組み込まれた軽鉄などの縦補強材に取付けられ一体化されており、しかも、前記縦補強材の上下端部は、前記横胴縁に固定されたＵ字状溝金物に、前記横胴縁の材軸方向および上下方向には非拘束状態で嵌め込まれ、かつ、前記縦補強材の上端上方には一定の隙間が確保されているので、仕上り高さが概ね床から天井まで届く高さの大きなシールドパネルであっても、前記縦胴縁および横胴縁から成る枠が水平変形を生じた場合、相隣接する前記シールドパネルの縁端相互間に設けられている一定の隙間の範囲で、前記シールドパネルは、剛体的に回転（ロッキング）をすることができる。 As described above, in this invention, shielding panels are attached to and integrated with vertical reinforcement materials such as light steel that are incorporated into a frame surrounded by the vertical and horizontal furring strips. Furthermore, the upper and lower ends of the vertical reinforcement materials are fitted into U-shaped grooved metal fittings fixed to the horizontal furring strips in a non-constrained manner in the axial and vertical directions of the horizontal furring strips. Furthermore, a certain gap is secured above the upper ends of the vertical reinforcement materials. Therefore, even in the case of large shielding panels whose finished height reaches roughly from floor to ceiling, if the frame consisting of the vertical and horizontal furring strips undergoes horizontal deformation, the shielding panels can rigidly rotate (rock) within the certain gap provided between the edges of adjacent shielding panels.
この時、前記シールドパネル縁端相互間の前記隙間は縦胴縁および横胴縁と押え縁とで、シールドガスケットを介して挟み込まれ覆われているので、シールドパネルが剛体的に回転（ロッキング）を生じても、電磁波の漏洩は前記シールドガスケットにより防止される。 At this time, the gaps between the edges of the shielding panels are sandwiched and covered by the vertical and horizontal furring strips and the retaining edge via the shielding gasket, so even if the shielding panel rotates rigidly (rocking), the shielding gasket prevents electromagnetic waves from leaking.
また本発明の第２の手段は、前記シールドパネルの取付構造において、
（１）前記シールドパネルを補強する前記縦補強材の上下端部が、前記横胴縁に固定された、もしくは前記床および上階床に固定されたＵ字状溝金物に前記横胴縁の材軸方向および上下方向には非拘束状態で嵌め込まれており、かつ、前記縦補強材の上端上方には、前記Ｕ字状溝金物の底面との間に一定の隙間が確保されている。
（２）前記縦補強材が内部に組み込まれた縦胴縁および横胴縁から成る枠組が、少なくとも上下２段で構成されている。
以上の構成をさらに含むことを特徴とする、シールドパネルの取付構造である。
The second aspect of the present invention is a mounting structure for the shield panel, comprising:
(1) The upper and lower ends of the vertical reinforcement that reinforces the shield panel are fitted into U-shaped groove metal fittings fixed to the horizontal furring strips or fixed to the floor and the upper floor floor in a non-constrained state in the material axial direction and vertical direction of the horizontal furring strips, and a certain gap is secured above the upper end of the vertical reinforcement and between it and the bottom surface of the U-shaped groove metal fittings.
(2) The framework, consisting of vertical and horizontal furring strips with the vertical reinforcement members built in, is composed of at least two levels, upper and lower.
The mounting structure for a shield panel is characterized by further including the above configuration.
通常よりも高い階高の建物階に天井高の高いシールドルームが設置された場合、シールドパネル１枚のみでシールド壁全高を覆うとすれば、シールドパネルが長くかつ重くなるため、運搬や建て込みの面で施工性に問題が生じるが、前記本発明の第２の手段の通り、前記シールドパネルを補強する縦補強材が内部に組み込まれた縦胴縁および横胴縁から成る枠組が、少なくとも上下２段で構成されていれば、前記シールドパネルも同じく２段に分かれて、より小さな寸法となるので、前記施工性は改善される。 When a high-ceilinged shielded room is installed on a building floor with a higher-than-normal floor height, if the entire height of the shield wall is covered with only one shield panel, the shield panel will be long and heavy, causing problems in terms of transport and erection. However, as in the second aspect of the present invention, if the framework, consisting of vertical and horizontal furring strips with vertical reinforcement members built into it that reinforce the shield panel, is composed of at least two levels, upper and lower, the shield panel will also be divided into two levels, making it smaller in size, thereby improving the ease of construction.
本発明は、以上のような手段によるので、次のような効果が得られる。
（１）シールドパネルは、寸法が大きくなって重くなっても、シールド壁の縦胴縁および横胴縁で囲まれた枠の中に組み込まれた縦補強材に取付けられて補強されるため、パネル面外への変形は抑制される。
（２）建物の層間水平変形に伴いシールド壁が水平変形して前記縦胴縁が傾斜しても、上下端部がＵ字状溝金物に非拘束状態で篏合された前記縦補強材の上端上方には、一定の隙間が確保されており、かつ、相隣接する前記シールドパネルの縁端相互間に設けられている一定の隙間の範囲で、前記縦補強材と一体化した前記シールドパネルは剛体的に回転（ロッキング）が可能となっているため、この回転による変形追従効果が大きく、前記シールドパネルが歪んで損傷することは防止される。
（３）前記シールドパネル縁端相互間の前記隙間は、縦胴縁および横胴縁と押え縁とで、シールドガスケットを介して挟み込まれ覆われているので、前記シールドパネルが回転（ロッキング）しても、電磁波の漏洩を防止することができる。
（４）以上のことから、建物の大きな層間水平変形（例えば、１／１００）が生じた場合でも、電磁シールド性能を保持できる。
The present invention, which is based on the above means, has the following effects.
(1) Even if the shield panel becomes larger and heavier, it is reinforced by being attached to vertical reinforcement members incorporated into a frame surrounded by the vertical and horizontal furring strips of the shield wall, so deformation outside the panel surface is suppressed.
(2) Even if the shield wall deforms horizontally due to horizontal deformation between the building's floors and the vertical furring strips tilt, a certain gap is secured above the upper end of the vertical reinforcement, the upper and lower ends of which are joined to the U-shaped groove metal fittings in an unconstrained state, and the shield panel integrated with the vertical reinforcement can rotate rigidly (rock) within the certain gap provided between the edges of adjacent shield panels. Therefore, the deformation-following effect due to this rotation is large, and the shield panel is prevented from being distorted and damaged.
(3) The gaps between the edges of the shielding panels are sandwiched and covered by the vertical and horizontal furring strips and the pressure edge via a shielding gasket, so that leakage of electromagnetic waves can be prevented even if the shielding panel rotates (rocks).
(4) As a result of the above, electromagnetic shielding performance can be maintained even if a large horizontal deformation between stories of the building occurs (for example, 1/100).
本発明の実施例を図１～図３にて説明する。シールドルーム１は、図１に図示のように、シールドされた床２と、上階床３下面の下方近傍のシールドされた天井４と、四方をシールド壁Ｗと、で囲まれている。シールド壁Ｗは、図１（ａ）～（ｃ）に図示のように、間柱を兼ねた縦胴縁５、５、…と、床２近傍に水平に配設された横胴縁６、６、…および天井４の下方近傍に水平に配設された上下２列の横胴縁６、６、…とで囲まれた枠の内部、および、縦胴縁５、５、…と、床２近傍の横胴縁６、６、…および床２とで囲まれた枠の内部に、それぞれ縦補強材７、７、…が立てられて組み込まれている。 An embodiment of the present invention will be described with reference to Figures 1 to 3. As shown in Figure 1, the shielded room 1 is surrounded by a shielded floor 2, a shielded ceiling 4 located below and adjacent to the underside of the upper floor 3, and shield walls W on all four sides. As shown in Figures 1(a) to 1(c), the shield wall W has vertical reinforcement members 7, 7, ... erected and incorporated into the frame surrounded by vertical furring strips 5, 5, ... which also serve as partition posts, horizontal furring strips 6, 6, ... arranged horizontally near the floor 2, and two upper and lower rows of horizontal furring strips 6, 6, ... arranged horizontally below and adjacent to the ceiling 4, and the frame surrounded by the vertical furring strips 5, 5, ..., horizontal furring strips 6, 6, ... near the floor 2, and the floor 2.
横胴縁６、６、…は、縦胴縁５、５、…に取付け金物５ａ、５ａ、…にて取付けられており、また、縦補強材７、７、…の上下端部は、Ｕ字状断面をした薄板から成るＵ字状金物８、８、…に、横胴縁６、６、…の材軸方向および上下方向には非拘束状態で篏合されており、かつ、縦補強材７、７、…の上端上方には、Ｕ字状金物８、８、…の底面との間に一定の隙間寸法Ｃが確保されている。Ｕ字状金物８、８、…は、図１に図示のように、横胴縁６、６、…または床２に固定され、図示しないが、上階床３に固定される場合もありうる。 The horizontal furring strips 6, 6, are attached to the vertical furring strips 5, 5, with mounting hardware 5a, 5a, and the upper and lower ends of the vertical reinforcements 7, 7, are joined to U-shaped hardware 8, 8, made of thin plates with a U-shaped cross section, without any constraint in the axial or vertical directions of the horizontal furring strips 6, 6, and a certain gap dimension C is maintained above the upper ends of the vertical reinforcements 7, 7, between them and the bottom surfaces of the U-shaped hardware 8, 8,. As shown in Figure 1, the U-shaped hardware 8, 8, is fixed to the horizontal furring strips 6, 6 or floor 2, and may also be fixed to the upper floor 3, although this is not shown.
上記のような骨組みに、図２（ａ）～（ｄ）に図示のように、シールドルーム１の室内側から、シールドパネル９、９、…を次の手順で取付ける。先ず、シールド鉄板９ａ、９ａ、…を補強する補強板（石膏ボード、合板等）９ｂ、９ｂ、…が、所定間隔のビス７ａ、７ａ、…にてビス止めされる。 As shown in Figures 2(a) to 2(d), shielding panels 9, 9, ... are attached to the above-described framework from the inside of the shielded room 1 in the following procedure. First, reinforcing plates (gypsum board, plywood, etc.) 9b, 9b, ... that reinforce the shielding steel plates 9a, 9a, ... are fastened with screws 7a, 7a, ... at specified intervals.
次に、図２（ｃ）、（ｄ）を参照して、シールド鉄板９ａ、９ａ、…を補強板９ｂ、９ｂ、…に接着剤にて貼り付ける。この時、シールド鉄板９ａは、隣接するシールド鉄板９ａとの間に一定の隙間が確保されるように寸法決定され、前記隙間が縦胴縁５、５、…および横胴縁６、６、…の中央付近に位置するように配置される。 Next, referring to Figures 2(c) and (d), the shielding iron plates 9a, 9a, ... are attached to the reinforcing plates 9b, 9b, ... with adhesive. At this time, the dimensions of the shielding iron plates 9a are determined so that a certain gap is maintained between adjacent shielding iron plates 9a, and the shielding iron plates 9a are positioned so that this gap is located near the center of the vertical furring strips 5, 5, ... and the horizontal furring strips 6, 6, ....
上記のように配置されたシールド鉄板９ａ、９ａ、…の縁端部は、図２（ｂ）に図示のようにシールドガスケット１０、１０、…を介して、前記隙間を跨いで一定幅でシールド鉄板９ａ、９ａ、…と重なる幅を有する押え縁１１、１１、…で塞がれ、図２（ｄ）に図示のように所定間隔のビス１１ａ、１１ａ、…にてビス止めされる。ビス１１ａ、１１ａ、…は、前記隙間の中央線をゲージラインＬ、Ｌ、…（図４、５参照）とする。 The edges of the shielding steel plates 9a, 9a, ... arranged as described above are sealed with retaining edges 11, 11, ... which have a width that overlaps the shielding steel plates 9a, 9a, ... by a certain width across the gap via shielding gaskets 10, 10, ... as shown in Figure 2(b), and are fastened with screws 11a, 11a, ... spaced at predetermined intervals as shown in Figure 2(d). The screws 11a, 11a, ... have the center line of the gap as gauge line L, L, ... (see Figures 4 and 5).
以上のような構成から成るシールド壁Ｗであるので、シールドルーム１が設置されている建物階が、図３に図示の水平矢印方向に層間水平変位δHを生じた場合、シールドパネル９、９、…は円弧矢印の方向に回転し、各シールドパネル９の縦補強材７の下端部に寸法δＶの浮上りが生じる。その時のシールドパネル９の挙動は、以下のように説明できる。 Because the shield wall W is constructed as described above, if the building floor on which the shield room 1 is installed experiences an inter-story horizontal displacement δH in the direction of the horizontal arrow shown in Figure 3, the shield panels 9, 9, ... will rotate in the direction of the arc arrow, causing an uplift of dimension δV at the bottom end of the vertical reinforcement member 7 of each shield panel 9. The behavior of the shield panel 9 at that time can be explained as follows.
図４、５を参照して説明する。図４、５は、縦胴縁５、５が傾斜した場合の１枚のシールドパネル９について、どのように挙動するかを模式的に表現したものであり、図４（ａ）、（ｂ）、図５（ｃ）、（ｄ）の図中に表示された一点鎖線は、シールドパネル９の周縁を押える押え縁１１、１１、…を縦胴縁５、５、…および横胴縁６、６に止付けているビス１１ａ、１１ａ、…の、縦もしくは横ゲージラインＬを示す。即ち、シールドパネル９の周縁がこれらビス１１ａ、１１ａ、…の縦もしくは横ゲージラインＬに接触するまでは、シールドパネル９は横滑りや回転が可能である。 This will be explained with reference to Figures 4 and 5. Figures 4 and 5 are schematic representations of how a single shield panel 9 behaves when the vertical furring strips 5, 5 are tilted. The dashed-dotted lines shown in Figures 4(a), (b), 5(c), and (d) indicate the vertical or horizontal gauge lines L of the screws 11a, 11a, ... that fasten the pressing edges 11, 11, ... that hold down the periphery of the shield panel 9 to the vertical furring strips 5, 5, ... and horizontal furring strips 6, 6. In other words, the shield panel 9 can slide or rotate until the periphery of the shield panel 9 comes into contact with the vertical or horizontal gauge lines L of these screws 11a, 11a, ...
図４（ａ）の初期状態から、図４（ｂ）に図示のように、縦胴縁５、５が紙面右（矢印）方向に傾斜すると、初期状態においてシールドパネル９の縦縁端と縦ゲージラインＬとの間には隙間ａがあるので、シールドパネル９と縦胴縁５、５との間の摩擦抵抗を無視すれば、シールドパネル９の上端角部Ｐ２点が縦ゲージラインＬに接触するまでは、シールドパネル９は不動（変形なし）のまま、縦胴縁５、５の傾斜が可能である。 When the vertical furring strips 5, 5 are tilted to the right (arrow) of the paper from the initial state in Figure 4(a) as shown in Figure 4(b), there is a gap a between the vertical edge of the shield panel 9 and the vertical gauge line L in the initial state, so if we ignore the frictional resistance between the shield panel 9 and the vertical furring strips 5, 5, the shield panel 9 will remain immobile (undeformed) until the two upper corners P of the shield panel 9 come into contact with the vertical gauge line L, and the vertical furring strips 5, 5 can be tilted.
この時の縦胴縁５、５の傾斜角Ｒ（層間水平変形角に相当）＝Ｒ1は、Ｒ1＝ａ/（Ｈ－ｂ）で表される。但し、ａはシールドパネル９の縦縁端と縦ゲージラインＬとの隙間寸法、ｂはシールドパネル９の上縁端と上部の横ゲージラインＬとの隙間寸法であり、Ｈはシールド床面２から上部の横ゲージラインＬまでの高さである。 The inclination angle R (corresponding to the inter-story horizontal deformation angle) = R1 of the vertical furring strips 5, 5 at this time is expressed as R1 = a/(H-b), where a is the gap dimension between the vertical edge of the shield panel 9 and the vertical gauge line L, b is the gap dimension between the top edge of the shield panel 9 and the upper horizontal gauge line L, and H is the height from the shield floor surface 2 to the upper horizontal gauge line L.
図４（ｂ）の状態から更に縦胴縁５、５が傾斜すると、縦ゲージラインＬ上に並んだ押え縁１１、１１のビス１１ａ、１１ａ…が、シールドパネル９の縦縁端の上部を押すので、図５（ｃ）に図示のように、シールドパネル９と一体化している縦補強材７、７、…の内、最外端に位置する縦補強材７の下端Ｏ１点を中心として回転を起こすが、シールドパネル９上端角部Ｐ２点が上部の横ゲージラインＬに接触するまで、縦胴縁５、５の傾斜が可能である。 If the vertical furring strips 5, 5 are tilted further from the state shown in Figure 4(b), the screws 11a, 11a... of the pressing edges 11, 11 lined up on the vertical gauge line L will press against the upper vertical edge of the shield panel 9, causing rotation around the lower end O1 point of the vertical reinforcement 7 located at the outermost end of the vertical reinforcements 7, 7... that are integrated with the shield panel 9, as shown in Figure 5(c).However, the vertical furring strips 5, 5 can be tilted until the upper corner P2 point of the shield panel 9 comes into contact with the upper horizontal gauge line L.
ここで、シールドパネル９の上縁端と上部の横ゲージラインＬとの隙間寸法をｂ、縦補強材７の下端Ｏ１点の対角にある上端Ｏ２点の上部隙間寸法をｃとし、縦補強材７、７、…の高さをｈ、初期状態（図４（ａ））における縦補強材７、７、…の下端から床２までの寸法をｈ０、両端にある縦補強材７、７の間隔をｓ１とすると、シールドパネル９の回転によるＯ２点の水平変位Δは、Δ＝ｃ・ｈ/ｓ１となるので、縦胴縁５、５は水平に少なくともΔだけ更に傾斜可能である。よって、図５（ｃ）の状態における縦胴縁５、５の傾斜角Ｒ２は、Ｒ２＝Ｒ1＋Δ/（ｈ０＋ｈ）＝ａ/（Ｈ－ｂ）+ｃ・ｈ/ｓ１/（ｈ０＋ｈ）となる。 Here, if the gap dimension between the upper edge of the shielding panel 9 and the upper horizontal gauge line L is b, the upper gap dimension of the upper end O2 diagonally opposite the lower end O1 of the vertical reinforcement 7 is c, the height of the vertical reinforcements 7, 7, ... is h, the dimension from the lower end of the vertical reinforcements 7, 7, ... to the floor 2 in the initial state (Figure 4(a)) is h0 , and the spacing between the vertical reinforcements 7, 7 at both ends is s1 , the horizontal displacement Δ of point O2 due to the rotation of the shielding panel 9 is Δ = c·h/ s1 , so the vertical furring strips 5, 5 can be further tilted horizontally by at least Δ. Therefore, the inclination angle R2 of the vertical furring strips 5, 5 in the state of Figure 5(c) is R2 = R1 + Δ/( h0 + h) = a/(H-b) + c·h/ s1 /( h0 + h).
但し、Ｐ２点が上部の横ゲージラインＬに接触するまでの距離ｂよりも、縦胴縁５のＯ２点の上部隙間寸法ｃがある程度大きくないと、シールドパネル９の回転は、隙間寸法ｃで限界付けられることに注意を要する。即ち、シールドパネル９の回転によるＰ２点の上方への変位は、Ｏ２点の上方への変位が隙間寸法ｃと一致した時、概ねｃ・s2/s1で表せるので、ｂ≦ｃ・s2/s1 がシールドパネル９の回転が隙間寸法ｃで限界付けられないための条件となる。 However, it should be noted that the rotation of the shield panel 9 will be limited by the gap dimension c unless the upper gap dimension c of point O2 of the vertical furring strip 5 is somewhat larger than the distance b until point P2 contacts the upper horizontal gauge line L. In other words, the upward displacement of point P2 due to the rotation of the shield panel 9 can be roughly expressed as c· s2 / s1 when the upward displacement of point O2 matches the gap dimension c, so b≦c· s2 / s1 is the condition for the rotation of the shield panel 9 not to be limited by the gap dimension c.
次に、図５（ｃ）の状態から更に縦胴縁５、５が傾斜すると、図５（ｄ）に図示のように、縦ゲージラインＬ上に並んだ押え縁１１、１１のビス１１ａ、１１ａ…がシールドパネル９を押すことにより、シールドパネル９の下端角部Ｐ１点が縦ゲージラインＬに接触するまでシールドパネル９は概ね隙間寸法ａだけ横滑り可能なので、横滑りによる縦胴縁５、５の傾斜を加算すれば、図５（ｄ）の状態における縦胴縁５、５の傾斜角Ｒ３は、Ｒ３＝Ｒ1＋Ｒ２＋ａ/Ｈ＝ａ/（Ｈ－ｂ）＋ｃ・ｈ/ｓ１/（ｈ０＋ｈ）＋ａ/Ｈとなる。 Next, when the vertical furring strips 5, 5 are further tilted from the state shown in Figure 5(c), as shown in Figure 5(d), the screws 11a, 11a... of the pressing edges 11, 11 lined up on the vertical gauge line L press against the shield panel 9, allowing the shield panel 9 to slide sideways by approximately the gap dimension a until the lower corner P1 point of the shield panel 9 comes into contact with the vertical gauge line L. Therefore, if the tilt of the vertical furring strips 5, 5 due to the sliding is added, the tilt angle R3 of the vertical furring strips 5, 5 in the state shown in Figure 5(d) becomes R3 = R1 + R2 + a/H = a/(H-b) + c·h/ s1 /( h0 + h) + a/H.
具体例として、ａ＝ｂ＝ｃ＝１ｃｍ、Ｈ＝３５０ｃｍ、ｈ＝３００ｃｍ、ｈ０＝３０ｃｍ、ｓ1＝１００ｃｍ、ｓ2＝１１５ｃｍの時、条件ｂ≦ｃ・s2／s1＝１．１５ｃｍを満たすので、Ｒ３≒２．８６５×１０-３＋９．０９１×１０-３＋２．８５７×１０-３＝１４．８１３×１０-３≒１／６８＞１／１００となる。 As a specific example, when a = b = c = 1 cm, H = 350 cm, h = 300 cm, h 0 = 30 cm, s 1 = 100 cm, and s 2 = 115 cm, the condition b≦c·s 2 /s 1 = 1.15 cm is satisfied, so R 3 ≈ 2.865×10 -3 + 9.091×10 -3 + 2.857×10 -3 = 14.813×10 -3 ≈ 1/68 > 1/100.
また、シールドパネル９の横滑りを考慮しない（ａ／Ｈ＝０）としても、Ｒ２≒２．８６５×１０-３＋９．０９１×１０-３＝１１．９５６×１０-３≒１／８４＞１／１００であることから、シールドパネル９の回転（ロッキング）による効果が大きいことが分かる。 Furthermore, even if the lateral sliding of the shield panel 9 is not taken into consideration (a/H = 0), R2 ≒ 2.865 x 10-3 + 9.091 x 10-3 = 11.956 x 10-3 ≒ 1/84 > 1/100, which shows that the effect of rotation (rocking) of the shield panel 9 is significant.
即ち、縦胴縁５、５の傾斜角Ｒ＝Ｒ1～Ｒ３はそれぞれ層間水平変形角に相当するので、本発明によるシールドパネルの取付構造は、建物の層間水平変形角１／１００に対しても、シールドパネルが損傷することなく変形追従が可能であると言える。 In other words, since the inclination angles R = R1 to R3 of the vertical furring strips 5, 5 each correspond to the horizontal inter-story deformation angle, it can be said that the mounting structure of the shielding panel according to the present invention is capable of following deformation without damaging the shielding panel even when the horizontal inter-story deformation angle of the building is 1/100.
図４、５による上記の説明では、縦胴縁５、５の可能な傾斜角を分かり易く説明するために、縦胴縁５、５および横胴縁６、６とシールドパネル９との摩擦抵抗は無視した。実際には、シールドパネル９の周縁部は、シールドガスケット１０、１０、…を介して、縦胴縁５、５および横胴縁６、６と押え縁１１、１１、…とが複数のビス１１a、１１ａ、…にて綴られているので、図４（ｂ）、図５（ｃ）～（ｄ）に図示の状態が明確に順番通り生じるものではないが、ここでは、縦胴縁５、５の傾斜とシールドパネル９の挙動との関係を分かり易く説明するために単純化している。 In the above explanation using Figures 4 and 5, the frictional resistance between the vertical furring strips 5, 5 and the horizontal furring strips 6, 6 and the shielding panel 9 was ignored in order to clearly explain the possible inclination angles of the vertical furring strips 5, 5. In reality, the peripheral edge of the shielding panel 9 is fastened to the vertical furring strips 5, 5 and the horizontal furring strips 6, 6 and the retaining edges 11, 11, ... with multiple screws 11a, 11a, ... via shielding gaskets 10, 10, .... Therefore, the states shown in Figure 4(b) and Figures 5(c) to (d) do not occur in a clear order, but the situation has been simplified here to clearly explain the relationship between the inclination of the vertical furring strips 5, 5 and the behavior of the shielding panel 9.
以上のことから、本発明のシールドパネルの取付構造は、建物の層間水平変形角が１／１００に達しても、シールドパネルが剛体的に回転することを可能とするので、地震時に変形することなく損傷を免れる。また、相隣接するシールドパネルの縁端同士の隙間は、シールドガスケットを介して縦胴縁および横胴縁と押え縁とを複数のビスにて綴られているため、前記ビスの抜けや破断が起きなければ、電磁波の漏洩が防止されるので、地震後にもシールド壁としての性能は保持される。 As a result of the above, the mounting structure for the shielding panels of the present invention allows the shielding panels to rotate rigidly even when the horizontal deformation angle between the building's stories reaches 1/100, preventing deformation and damage during an earthquake. Furthermore, the gaps between the edges of adjacent shielding panels are sealed with multiple screws connecting the vertical and horizontal furring strips to the retaining edge via shielding gaskets. Therefore, as long as the screws do not come loose or break, electromagnetic wave leakage is prevented, and the shielding wall's performance is maintained even after an earthquake.
また、通常よりも高い階高の建物階に天井高の高いシールドルーム１が設置された場合、１枚のシールドパネル９、９、…のみでシールド壁Ｗ全高を覆うとすれば、１枚のシールドパネル９が長くかつ重くなるため、運搬や建て込みの面で施工性に問題が生じるが、図６に図示のように、シールドパネル９を補強する縦補強材７、７、…が内部に組み込まれた縦胴縁５および横胴縁６から成る枠組が、少なくとも上下２段で構成されていれば、シールドパネル９も同じく２段に分かれるので小さな寸法となり、前記施工性の問題は改善される。 Furthermore, if a high-ceilinged shielded room 1 is installed on a building floor with a higher-than-normal floor height, and the entire height of the shield wall W is covered with only one shield panel 9, 9, ..., each shield panel 9 will be long and heavy, creating problems in terms of transport and erection. However, as shown in Figure 6, if the framework consisting of vertical furring strips 5 and horizontal furring strips 6, with vertical reinforcement members 7, 7, ... that reinforce the shield panel 9 built into it, is configured in at least two levels, top and bottom, the shield panel 9 will also be divided into two levels, making it smaller in size and improving the above-mentioned workability issues.
建物上層階は地震による層間水平変形が地下階や地上１階以上に大きくなるが、そのような地上２階以上の上層階にシールドルームが設置される場合、前記シールドルームの壁面を覆うシールドパネルには、大きな水平変形への追従性能が求められるが、従来技術では不十分であった。本発明は、層間水平変形角が１/１００に達するような場合でも、シールド性能を保持できるシールドパネルの取付構造を提供するので、中高層建物内に設置されるシールドルームの性能要求に十分答えることができる。 On the upper floors of a building, inter-story horizontal deformation due to an earthquake is greater than on the basement floor or the first floor above ground. When a shielded room is installed on such an upper floor, two floors above ground or higher, the shielding panels covering the walls of the shielded room must be able to accommodate large horizontal deformations, but prior art has not been able to do so. This invention provides a mounting structure for shielding panels that can maintain shielding performance even when the inter-story horizontal deformation angle reaches 1/100, fully meeting the performance requirements for shielded rooms installed in mid- to high-rise buildings.
１：シールドルーム
２：床
３：上階床
４：天井
５：縦胴縁
５a：取付け金物
６：横胴縁
７：縦補強材（軽鉄）
８：Ｕ字状溝金物
９：シールドパネル
９ａ：シールド鉄板
９ｂ：補強板
１０：シールドガスケット
１１：押え縁
１１a：ビス
ａ、ｂ：ビスのゲージラインまでの隙間寸法
ｃ：縦補強材（軽鉄）上端上方の隙間寸法
Ｈ、ｈ、ｈ０：高さ方向の寸法
Ｌ：ビスのゲージライン
Ｏ１：縦補強材（軽鉄）の下端点
Ｏ２：縦補強材（軽鉄）の上端点
Ｐ１、Ｐ２：シールドパネルの角部
Ｗ：シールド壁
ｓ1、ｓ2：縦補強材（軽鉄）の下端Ｏ１点からの水平寸法
Ｒ、Ｒ1、Ｒ2、Ｒ3：縦胴縁の傾斜角（層間水平変形角）
δＨ：層間水平変位
δＶ：縦補強材（軽鉄）下端部の浮上り寸法
Δ：縦補強材（軽鉄）Ｏ２点の水平変位
1: Shielded room 2: Floor 3: Upper floor 4: Ceiling 5: Vertical furring strips 5a: Mounting hardware 6: Horizontal furring strips 7: Vertical reinforcement (light steel)
8: U-shaped channel metal fitting 9: Shield panel 9a: Shield steel plate 9b: Reinforcement plate 10: Shield gasket 11: Pressing edge 11a: Screw a, b: Gap dimension to the gauge line of the screw c: Gap dimension above the top end of the vertical reinforcement (light steel) H, h, h0 : Height dimension L: Screw gauge line O1 : Bottom end point of the vertical reinforcement (light steel) O2 : Top end point of the vertical reinforcement (light steel) P1 , P2 : Corner of the shield panel W: Shield wall s1 , s2 : Bottom end of the vertical reinforcement (light steel) Horizontal dimension from point O1 R, R1 , R2 , R3 : Inclination angle of the vertical furring strip (horizontal deformation angle between layers)
δ H : Inter-story horizontal displacement δ V : Floating dimension of the lower end of the vertical reinforcement (light steel) Δ: Horizontal displacement of two points of the vertical reinforcement (light steel)
Claims (2)
（１）電磁シールド壁を覆う電磁シールドパネルであって、左右に隣接、または左右および上下に隣接する前記電磁シールドパネルの縁端相互間に一定の隙間が確保され、前記隙間は縦胴縁および横胴縁と押え縁とで、電磁シールドガスケットを介して挟み込まれ覆われている。
（２）前記電磁シールドパネルは、補強面材に接着された金属系の導電体であって、前記縦胴縁および横胴縁で囲まれた枠の中に組み込まれた縦補強材に取付けられ一体化されている。
（３）前記縦胴縁の上下端は前記建物階の躯体に定着されており、前記縦補強材の上下端部は、前記建物階の床および天井の近傍に設置された前記横胴縁に固定された、もしくは前記床および上階床に固定されたＵ字状溝金物に、前記横胴縁の材軸方向および上下方向には非拘束状態で嵌め込まれており、かつ、前記縦補強材の上端上方には、前記Ｕ字状溝金物の底面との間に一定の隙間が確保されている。
以上の構成を含むことを特徴とする、電磁シールドパネルの取付構造。 In the electromagnetic shielding wall of the electromagnetic shielding room on the building floor where the electromagnetic shielding room is installed,
(1) An electromagnetic shield panel that covers an electromagnetic shield wall, in which a certain gap is secured between the edges of adjacent electromagnetic shield panels on the left and right, or adjacent left and right and top and bottom, and the gap is sandwiched and covered by vertical and horizontal furring strips and a pressing edge via an electromagnetic shield gasket.
(2) The electromagnetic shield panel is a metallic conductor adhered to a reinforcing surface material, and is attached to and integrated with a vertical reinforcing material incorporated into a frame surrounded by the vertical and horizontal furring strips.
(3) The upper and lower ends of the vertical furring strips are fixed to the main body of the building floor, and the upper and lower ends of the vertical reinforcement are fitted into U-shaped groove metal fittings fixed to the horizontal furring strips installed near the floor and ceiling of the building floor, or fixed to the floor and the floor of the upper floor, without being constrained in the axial direction and vertical direction of the horizontal furring strips, and a certain gap is secured above the upper end of the vertical reinforcement and between it and the bottom surface of the U-shaped groove metal fitting.
An electromagnetic shield panel mounting structure characterized by including the above configuration.
（１）前記電磁シールドパネルを補強する前記縦補強材の上下端部が、前記横胴縁に固定された、もしくは前記床および上階床に固定されたＵ字状溝金物に前記横胴縁の材軸方向および上下方向には非拘束状態で嵌め込まれており、かつ、前記縦補強材の上端上方には、前記Ｕ字状溝金物の底面との間に一定の隙間が確保されている。
（２）前記縦補強材が内部に組み込まれた縦胴縁および横胴縁から成る枠組が、少なくとも上下２段で構成されている。
以上の構成をさらに含むことを特徴とする、電磁シールドパネルの取付構造。 2. The electromagnetic shield panel mounting structure according to claim 1,
(1) The upper and lower ends of the vertical reinforcement material that reinforces the electromagnetic shield panel are fitted into U-shaped groove metal fittings fixed to the horizontal furring strips or fixed to the floor and the upper floor floor in a non-constrained state in the material axial direction and vertical direction of the horizontal furring strips, and a certain gap is secured above the upper end of the vertical reinforcement material and the bottom surface of the U-shaped groove metal fitting.
(2) The framework, consisting of vertical and horizontal furring strips with the vertical reinforcement members built in, is composed of at least two levels, upper and lower.
An electromagnetic shield panel mounting structure further comprising the above configuration.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050102952A1 (en) | 1999-04-16 | 2005-05-19 | Surowiecki Matt F. | Construction method |
| JP3830428B2 (en) | 2002-06-25 | 2006-10-04 | 株式会社巴コーポレーション | Electromagnetic shield room |
| JP2010242298A (en) | 2009-04-01 | 2010-10-28 | Takenaka Komuten Co Ltd | Light steel partition wall |
| US20120005971A1 (en) | 2010-07-12 | 2012-01-12 | Richard Palmeri | Modular building system |
| JP2016138426A (en) | 2015-01-29 | 2016-08-04 | 株式会社イトーキ | Door device in high earthquake resistant partition system |
| JP2018157132A (en) | 2017-03-21 | 2018-10-04 | 株式会社巴コーポレーション | Joint structure of electromagnetic wave shield member |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552152U (en) * | 1978-06-22 | 1980-01-09 | ||
| JPH05235580A (en) * | 1992-02-20 | 1993-09-10 | Tokimec Inc | Electromagnetic shielding panel and room |
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2022
- 2022-11-02 JP JP2022176465A patent/JP7802645B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050102952A1 (en) | 1999-04-16 | 2005-05-19 | Surowiecki Matt F. | Construction method |
| JP3830428B2 (en) | 2002-06-25 | 2006-10-04 | 株式会社巴コーポレーション | Electromagnetic shield room |
| JP2010242298A (en) | 2009-04-01 | 2010-10-28 | Takenaka Komuten Co Ltd | Light steel partition wall |
| US20120005971A1 (en) | 2010-07-12 | 2012-01-12 | Richard Palmeri | Modular building system |
| JP2016138426A (en) | 2015-01-29 | 2016-08-04 | 株式会社イトーキ | Door device in high earthquake resistant partition system |
| JP2018157132A (en) | 2017-03-21 | 2018-10-04 | 株式会社巴コーポレーション | Joint structure of electromagnetic wave shield member |
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| JP2024066780A (en) | 2024-05-16 |
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