JP2012095396A - Laying method in lengthwise direction of cable rack and mounting fitting of cable rack used in the method - Google Patents

Laying method in lengthwise direction of cable rack and mounting fitting of cable rack used in the method Download PDF

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JP2012095396A
JP2012095396A JP2010238871A JP2010238871A JP2012095396A JP 2012095396 A JP2012095396 A JP 2012095396A JP 2010238871 A JP2010238871 A JP 2010238871A JP 2010238871 A JP2010238871 A JP 2010238871A JP 2012095396 A JP2012095396 A JP 2012095396A
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cable rack
cable
floor
bolt
mounting bracket
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JP5670152B2 (en
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Masayuki Watanabe
政行 渡辺
Shoji Kito
昭二 木藤
Mitsuhiro Yuki
充広 結城
Shigekatsu Aida
滋克 会田
Hiroyuki Kawashima
博幸 川島
Shunji Hamazaki
俊次 濱崎
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KANAFUJI DENKO KK
SHINSEI DENKO CO Ltd
Kandenko Co Ltd
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KANAFUJI DENKO KK
SHINSEI DENKO CO Ltd
Kandenko Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a laying method in a lengthwise direction of a cable rack having safety, easiness, and rapidity in a laying process, in the method of laying the cable rack from the uppermost floor to a ground floor or under ground floor of a structure.SOLUTION: In the laying method, the required number of cable racks 2 having the same length as the interval between floors 1a of each story vertically adjacent to each other are prepared in advance. Each cable rack 2 is lowered from a cable duct opening hole 3 provided on the floor 1a. An upper end of the cable rack 2 is fixed to a lower part of mounting fittings 4 fixed to a mold 3a of the sides, which face each other, of the cable duct opening hole 3. A lower end of the cable rack 2 is fixed to an upper part of the mounting fittings 4 fixed to the mold 3a of the sides, which face each other, of the cable duct opening hole 3 provided in the lower floor 1a of the vertically adjacent floors. In this manner, the upper and lower ends of the cable rack 2 are fixed to the mounting fittings 4 fixed to the mold 3a of the sides, which face each other, of the cable duct opening hole 3 provided in the floor 1a of each story.

Description

この発明は、ビルやタワー等の構造体の最上階等から地上階や地下階等まで、電力ケーブルや通信ケーブル等を支持するケーブルラックの縦方向への敷設工法及びその工法に使用するケーブルラックの取付金具に関するものである。 The present invention relates to a vertical installation method for a cable rack that supports power cables, communication cables, etc. from the top floor of a structure such as a building or a tower to the ground floor or basement floor, and a cable rack used for the method. This relates to the mounting bracket.

従来、ビルやタワー等の構造体の最上階から地上階や地下階まで、電力ケーブルや通信ケーブル等を支持するケーブルラックを敷設している。このケーブルラックの敷設工法は、定形長の汎用ラック製品を取り付け場所に搬入し、その場で必要に応じてケーブルラックの長さ等を加工し、取り付け作業を実施していた。 Conventionally, cable racks that support power cables, communication cables, and the like have been laid from the top floor to the ground floor and basement floor of structures such as buildings and towers. In this cable rack laying method, a standard-length general-purpose rack product is carried into an installation location, and the length of the cable rack is processed on the spot as necessary to perform the installation work.

定形長のラックは建物(構造体)の梁やフロアの間隔と必ずしも一致しないため、上下のラック間を接続する垂直接続金具と、ラックのゆれ防止用に、梁やフロアにラックを固定する固定金具や装置の2種類の金具又は装置を用意し、それぞれ別に取り付け作業を行っている。 Standard-length racks do not necessarily match the spacing between the beams and floors of the building (structure), so vertical connection brackets that connect the upper and lower racks and fixings that fix the racks to the beams and floors to prevent rack shaking Two types of metal fittings or devices are prepared, and installation work is performed separately.

特開平11−223009号公報JP-A-11-223209 実用新案登録第3128062号公報Utility Model Registration No. 3128062 実開平5−78123号公報Japanese Utility Model Publication No. 5-78123

しかしながら、従来の工法では、上下のラックどうしの接続と梁や床への取り付けに、2種類の金具や装置の取り付けを必要とし、取り付け作業の手間がかかる。また、上下のラックどうしの垂直接続が、梁や床の位置での接続作業とならず、床と床の中間の位置で接続する場合が多いため、別途足場や脚立を用意し、これらの上での不安定な作業となり、作業の手間が掛かると同時に安全面に不安があった。また、取り付け場所でのラックの加工作業を伴うこともあり、これも安全面での負の要因でもあり、当該加工の残材の処理も手間が掛かる。 However, in the conventional construction method, it is necessary to attach two kinds of metal fittings and devices to connect the upper and lower racks to each other and to be attached to the beam or the floor, which takes time and effort. In addition, the vertical connection between the upper and lower racks is not a connection work at the position of the beam or floor, but is often connected at a position between the floor and the floor. The work was unstable, and it took time and effort, and at the same time, I was worried about safety. In addition, there is a case where the rack is processed at the mounting location, which is a negative factor in terms of safety, and it takes time to process the remaining material of the processing.

また、上下のラックどうしの垂直接続作業において、上下のラックを接続金具で隙間なく取り付けるため、作業精度を要し、作業者に一層の負担を掛けている。さらに、上述のように、上下のラックどうしを接続金具で隙間なく取り付けるため、構造体の縦方向の伸縮に対する対応に柔軟性がない等の欠点がある。しかも従来工法を、数百メートルの高長となる構造体での縦方向のラックの敷設においては、より一層の作業手間や危険性がある。また、タワーのような上方が先細形状になっている構造体では、タワー内の空間をより広く活用するため、タワーの内壁に沿ってケーブルラックを敷設することが求められている。 Further, in the vertical connection work between the upper and lower racks, the upper and lower racks are attached without gaps with the connecting metal fittings, which requires work accuracy and places a further burden on the operator. Further, as described above, since the upper and lower racks are attached with connecting metal fittings without a gap, there is a drawback that the structure does not have flexibility in dealing with the vertical expansion and contraction. In addition, when the conventional construction method is used to lay the rack in the vertical direction in a structure that is several hundred meters long, there are even more labor and danger. In addition, in a structure having a tapered shape such as a tower, it is required to lay a cable rack along the inner wall of the tower in order to utilize the space in the tower more widely.

そこで、この発明では、構造体の最上階等から地上階や地下階等まで、電力ケーブルや通信ケーブル等を支持するケーブルラックを敷設する工法において、迅速に上下のケーブルラックを接続すると同時にケーブルラックを構造体へ固定し、敷設作業の安全性、容易性、迅速性等を備えたケーブルラックの縦方向の敷設工法、及び当該工法に使用するケーブルラックの取付金具を提供することを目的としたものである。またさらに、タワーのような上方が先細形状の構造体において、タワー内壁に近づけてケーブルラックを敷設することができる敷設工法、及びケーブルラックの取付金具を提供することも目的としたものである。 Therefore, according to the present invention, in the construction method of laying a cable rack that supports power cables, communication cables, etc. from the top floor etc. of the structure to the ground floor, the basement floor, etc. The purpose of the present invention is to provide a cable rack longitudinal laying method that secures the cable to the structure and has safety, ease, and speed of laying work, and a cable rack mounting bracket used in the method. Is. It is another object of the present invention to provide a laying method that can lay a cable rack close to the inner wall of the tower and a mounting bracket for the cable rack in a tapered structure such as a tower.

請求項1の発明は、構造体の上部の階から下部の階まで、電力ケーブルや通信ケーブル等を支持するケーブルラックを敷設する工法において、上下に隣接する各階の床の間隔、梁に設けた上下に隣接する足場の間隔、又は上下に隣接する作業場の間隔のいずれかと略同じ長さのケーブルラックを予め必要数用意し、当該各ケーブルラックを床、足場又は作業場のいずれかに設けたケーブルダクト開口穴から下ろして、当該ケーブルラックの上端を、前記ケーブルダクト開口穴の縁周りに固定した取付金具の下部に固定し、当該ケーブルラックの下端を、上下に隣接する下方の床、足場又は作業場のいずれかに設けたケーブルダクト開口穴の縁周りに固定した取付金具の上部に固定し、この様にして、各階の床、梁に設けた足場、又は作業場の何れかのケーブルダクト開口穴の縁周りに固定した取付金具に各ケーブルラックの上下端を固定する、ケーブルラックの縦方向の敷設工法とした。 In the construction method of laying a cable rack that supports power cables, communication cables, etc. from the upper floor to the lower floor of the structure, the invention according to claim 1 is provided in the space between the floors of the floors adjacent to each other in the vertical direction. Prepare a necessary number of cable racks of approximately the same length as either the space between the upper and lower adjacent scaffolds or the space between the upper and lower adjacent work sites, and provide each of these cable racks on the floor, scaffold or work site Lower from the duct opening hole, fix the upper end of the cable rack to the lower part of the mounting bracket fixed around the edge of the cable duct opening hole, and connect the lower end of the cable rack to the lower floor, scaffolding or Fix to the upper part of the mounting bracket fixed around the edge of the cable duct opening hole provided in one of the workplaces. In this way, the floor of each floor, the scaffolding provided on the beam, or the workplace Securing the upper and lower ends of each cable rack Re or mounting member which is fixed around the edge of cable duct opening hole, and the longitudinal direction of the installation method of the cable racks.

請求項2の発明は、前記取付金具の上部に、上方から垂下したケーブルラックの下端をボルト、ナットで固定するボルト貫通用長孔を設け、前記取付金具の下部に、下方に垂下するケーブルラックの上端をボルト、ナットで固定するボルト貫通用孔を設けた、請求項1に記載のケーブルラックの縦方向の敷設工法とした。 According to a second aspect of the present invention, there is provided a cable rack which is provided with a bolt penetration long hole for fixing a lower end of a cable rack suspended from above with a bolt and a nut at an upper portion of the mounting bracket, and is suspended downward at a lower portion of the mounting bracket. The cable rack longitudinal laying method according to claim 1, wherein a bolt penetration hole for fixing the upper end of the cable rack with a bolt and a nut is provided.

また、請求項3の発明は、請求項1又は2の敷設工法に使用する取付金具が、チャネル鋼から成る接続板を垂直に設け、当該接続板の背面下端から略直角に伸びた当接板を設け、これらの接続板と当接版とを繋ぐ補強板を設け、前記接続板の上部に、ボルト貫通用長孔を設け、下部にボルト貫通用孔を設け、前記当接板は床、足場又は作業場のいずれかに載せて固定し、前記接続板の上部に、上から垂下したケーブルラックの下端側部を嵌めて、前記ボルト貫通用長孔にボルトを通して止め、前記接続板の下部に、下方に垂下したケーブルラックの上端側部を嵌めて、前記ボルト貫通用孔にボルトを通して止める構成である、ケーブルラックの取付金具とした。 According to a third aspect of the present invention, the mounting bracket used in the laying method of the first or second aspect is provided with a connecting plate made of channel steel vertically, and a contact plate extending substantially perpendicularly from the lower end of the back surface of the connecting plate. Providing a reinforcing plate that connects these connection plates and the contact plate, providing a bolt through hole at the top of the connection plate, providing a bolt through hole at the bottom, the contact plate is a floor, Place it on either the scaffolding or the work place, fix it on the upper part of the connection plate, fit the lower end side of the cable rack suspended from above, stop the bolt through the bolt penetration slot, and attach it to the lower part of the connection plate. The cable rack mounting bracket has a configuration in which the upper end side portion of the cable rack hanging downward is fitted and the bolt is passed through the bolt penetration hole.

また、請求項4の発明は、前記構造体が上方へ行くにつれて先細形状である構造体において、前記取付金具には二つのチャネル鋼が平行して垂直に並んだ接続板を設け、一方のチャネル鋼には上から垂下したケーブルラックを固定し、他方のチャネル鋼には、下方に垂下したケーブルラックを固定することにより、前記各階の床、梁に設けた足場、又は作業場のいずれかで、上方のケーブルラックに対して下方のケーブルラックを外側にずれて固定することにより、常に構造体の内側にケーブルラックを近づけて敷設する、請求項1又は2に記載のケーブルラックの縦方向の敷設工法とした。 According to a fourth aspect of the present invention, in the structure having a tapered shape as the structure goes upward, the mounting bracket is provided with a connection plate in which two channel steels are arranged in parallel and vertically, and one channel By fixing the cable rack hanging from above to the steel, and fixing the cable rack hanging downward to the other channel steel, either on the floor of each floor, the scaffolding provided on the beam, or the work place, The cable rack according to claim 1 or 2, wherein the cable rack is always laid close to the inner side of the structure by fixing the lower cable rack so as to be shifted outward with respect to the upper cable rack. The construction method was adopted.

また、請求項5の発明は、請求項4の敷設工法に使用する取付金具が、二つのチャネル鋼が平行して垂直に並んだ接続板を設け、当該接続板の背面下端から略直角に伸びた当接板を設け、これらの接続板と当接板とを繋ぐ補強板を設け、これらの一方のチャネル鋼の上部に、ボルト貫通用長孔を設け、他方のチャネル鋼の下部にボルト貫通用孔を設け、前記当接板は床、足場又は作業場のいずれかに載せて固定し、前記接続板の一方のチャネル鋼の上部に、上から垂下したケーブルラックの下端側部を嵌めて、前記ボルト貫通用長孔にボルトを通して止め、前記接続板の他方のチャネル鋼の下部に、下方に垂下したケーブルラックの上端側部を嵌めて、前記ボルト貫通用孔にボルトを通して止める構成である、ケーブルラックの取付金具とした。 According to a fifth aspect of the present invention, the mounting bracket used in the laying method of the fourth aspect is provided with a connection plate in which two channel steels are arranged in parallel and vertically, and extends substantially perpendicularly from the lower end of the back surface of the connection plate. A contact plate is provided, a reinforcing plate is provided to connect the connection plate and the contact plate, a long hole for bolt penetration is provided in the upper part of one of the channel steels, and a bolt penetration is provided in the lower part of the other channel steel. The contact plate is fixed on the floor, scaffolding or work place, and the lower end side of the cable rack hanging from above is fitted on the upper part of one channel steel of the connection plate, The bolt is passed through the long hole for bolt penetration, the upper end side portion of the cable rack hanging downward is fitted to the lower part of the other channel steel of the connection plate, and the bolt is passed through the bolt penetration hole. As a cable rack mounting bracket .

請求項1の発明によれば、上下に隣接する各階の床の間隔、梁に設けた上下に隣接する足場の間隔、又は上下に隣接する作業場の間隔のいずれかと略同じ長さのケーブルラックを予め必要数用意しておき、各階の床、梁の足場又は作業場のいずれかに設けた各ケーブルラックを通すケーブルダクト開口穴の縁周りに固定した取付金具で、上下のケーブルラックを接続するため、上下の各ケーブルダクトの接続作業及び各ケーブルラックの構造体への固定作業が、同時に床又は足場で行え、安全性が高く、作業性が向上し、迅速にできる。それ故、コストダウンが図れる。 According to the first aspect of the present invention, the cable rack having substantially the same length as any of the space between the floors adjacent to each other vertically, the space between the scaffolds vertically adjacent to the beam, or the space between the work floors vertically adjacent to each other. In order to connect the upper and lower cable racks with mounting brackets fixed in advance around the edge of the cable duct opening hole through which each cable rack is provided on either the floor of each floor, the beam scaffolding or the work place. The work of connecting the upper and lower cable ducts and the work of fixing the cable racks to the structure can be performed simultaneously on the floor or scaffolding, which is highly safe, improves workability, and can be done quickly. Therefore, the cost can be reduced.

また、請求項2の発明によれば、上方から垂下したケーブルラックの下端を、下方の床又は足場に固定された取付金具の上部に固定するが、取付金具の接続板の上部には、ボルト貫通用長孔が設けられているため、ケーブルラックを取付金具の接続板に重ね、前記ケーブルラックのボルト孔及び接続板のボルト貫通長孔にボルトを通して、ナットで固定する際、接続板の長孔によって上下に裕度があり、ボルトを通しやすい。しかも、この様に上下のケーブルラックの接続に裕度を持たせているため、構造体の伸縮を当該取付金具箇所で吸収できる。 According to the invention of claim 2, the lower end of the cable rack hanging from above is fixed to the upper part of the mounting bracket fixed to the lower floor or the scaffolding, and the upper part of the connection plate of the mounting bracket has a bolt Since a through hole is provided, the cable rack is stacked on the connection plate of the mounting bracket, and when the bolt is passed through the bolt hole of the cable rack and the bolt through long hole of the connection plate and fixed with a nut, the length of the connection plate Bolts have a top and bottom allowance, making it easy to pass bolts. Moreover, since the upper and lower cable racks are allowed to be connected in this way, the expansion and contraction of the structure can be absorbed by the mounting bracket portion.

また、請求項3の発明によれば、取付金具の当接板を、各階の床、梁に設けた足場、又は作業場のいずれかのケーブルダクト開口穴の縁周りに固定し、取付金具の接続板の上部に上方から垂下したケーブルラックの下端側を固定し、同接続板の下部に下方に垂下するケーブルラックの上端側を固定するため、当該金具一つで、上下のケーブルラックの接続及びケーブルラックの構造体への固定ができる。従って、従来のように、上下のケーブルラックの接続金具と、ケーブルラックの構造体への固定金具や装置を夫々用意する必要がない。 Further, according to the invention of claim 3, the contact plate of the mounting bracket is fixed around the edge of the cable duct opening hole in any one of the floor, the scaffolding provided on the beam, or the work place, and the connection of the mounting bracket is performed. In order to fix the lower end side of the cable rack hanging from above on the upper part of the plate, and to fix the upper end side of the cable rack hanging downward to the lower part of the same connecting plate, The cable rack can be fixed to the structure. Therefore, unlike the prior art, there is no need to prepare connection brackets for the upper and lower cable racks and fixing brackets and devices for the cable rack structure.

また、請求項4の発明によれば、タワー等の構造体のように上方に行くに従って、先細と成っている構造のものにおいては、ケーブルラックは直線上に接続できない。直線上に接続すると、下方に行くに従って、タワーの内面から遠ざかり、場所を取ってしまうが、この方法によれば、常にケーブルラックがタワーの内面に近づいているため、ケーブルラックが場所を取らず、邪魔にならない。 According to the invention of claim 4, the cable rack cannot be connected on a straight line in a structure having a taper as it goes upward like a structure such as a tower. If you connect on a straight line, as you go down, you will move away from the inner surface of the tower and take up space, but with this method, the cable rack is always close to the inner surface of the tower, so the cable rack does not take up space. ,It does not get in the way.

また、請求項5の発明によれば、タワー等の構造体のように上方に行くに従って、先細と成っている構造のものにおいては、ケーブルラックは直線上に接続できない。従って、この発明の取付金具を用いれば、上下のケーブルラックを水平方向にずらして接続することができるため、先細形状の構造体には、最適の物となる。 According to the invention of claim 5, the cable rack cannot be connected on a straight line in a structure having a taper as it goes upward like a structure such as a tower. Therefore, if the mounting bracket of the present invention is used, the upper and lower cable racks can be connected while being shifted in the horizontal direction, so that the tapered structure is optimal.

この発明は、構造体の最上階から地上階や地下階まで、電力ケーブルや通信ケーブル等を支持するケーブルラックを敷設する工法において、上下に隣接する各階の床の間隔、梁に設けた上下に隣接する足場の間隔、又は上下に隣接する作業場の間隔のいずれかと略同じ長さのケーブルラックを予め必要数用意し、当該各ケーブルラックを、床、足場、又は作業場のいずれかに設けたケーブルダクト開口穴から下ろして、当該ケーブルラックの上端を、前記ケーブルダクト開口穴の相対向する辺の縁周りに固定した二つの各取付金具の下部に固定し、当該ケーブルラックの下端を、上下に隣接する下の床、足場、又は作業場のいずれかに設けたケーブルダクト開口穴の相対向する辺の縁周りに固定した複数の各取付金具の上部に固定し、この様にして、各階の床、梁に設けた足場、又は作業場のいずれかのケーブルダクト開口穴の相対向する辺の縁周りに固定した取付金具に各ケーブルラックの上下端を固定する、ケーブルラックの縦方向の敷設工法とした。 The present invention relates to a method of laying a cable rack that supports power cables, communication cables, etc. from the top floor to the ground floor or basement floor of the structure. Prepare the required number of cable racks of approximately the same length as either the interval between adjacent scaffolds or the interval between adjacent upper and lower workplaces, and install each cable rack on the floor, scaffold, or workplace. Lower from the duct opening hole, and fix the upper end of the cable rack to the lower part of each of the two mounting brackets fixed around the edges of the opposite sides of the cable duct opening hole. Secure to the top of each of the mounting brackets fixed around the edges of the opposite sides of the cable duct opening hole on either the adjacent lower floor, scaffolding, or work place. The upper and lower ends of each cable rack to the mounting brackets fixed around the edges of the opposite sides of the cable duct opening hole in any floor, beam scaffolding or work floor The vertical laying method was adopted.

これにより、ケーブルラックの縦方向の敷設が、容易、安全、迅速に行える。 As a result, the cable rack can be laid in the vertical direction easily, safely and quickly.

以下、この発明の実施例1を図に基づいて説明する。図1は高層ビルにおけるこの発明の方法を示す概略構成図、図2はこの発明の方法の取付金具箇所の詳細を示す斜視図、図3はこの方法に使用する取付金具の斜視図、図4は同取付金具の背面図である。 Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a schematic configuration diagram showing the method of the present invention in a high-rise building, FIG. 2 is a perspective view showing details of the mounting bracket part of the method of the present invention, FIG. 3 is a perspective view of the mounting bracket used in this method, and FIG. FIG. 4 is a rear view of the mounting bracket.

図1に示すように、高層ビル1の隣接する各階の床1aの間隔に略合わせたケーブルラック2を予め必要数用意する。また、最上階から各床1aの相応する位置に予めケーブルダクト開口穴3を設けている。このケーブルダクト開口穴3の周囲には金属から成る型枠3aが設けられている。そして、最上階の床1aのケーブルダクト開口穴3から、ケーブルラック2を階下に降ろす。次に、当該床1aの前記ケーブルダクト開口穴3の相対向する辺の前記型枠3aの上に固定した二つの取付金具4の各下部にボルト、ナットにより当該ケーブルラック2の両側枠体2aの上端両側面部を固定する。これにより当該ケーブルラック2はその上端両側を最上階の床1aの二つの取付金具4に支持、固定されて下の階に吊り下げられる。 As shown in FIG. 1, a necessary number of cable racks 2 are prepared in advance so as to substantially match the interval between floors 1 a of adjacent floors of a high-rise building 1. In addition, cable duct opening holes 3 are provided in advance at positions corresponding to the floors 1a from the top floor. Around this cable duct opening hole 3, a mold 3a made of metal is provided. Then, the cable rack 2 is lowered down from the cable duct opening hole 3 in the floor 1a on the top floor. Next, both side frames 2a of the cable rack 2 are attached to the lower portions of the two mounting brackets 4 fixed on the formwork 3a on opposite sides of the cable duct opening hole 3 of the floor 1a by bolts and nuts. Fix both sides of the upper end of the. Thus, the upper end of the cable rack 2 is supported and fixed to the two mounting brackets 4 on the floor 1a on the uppermost floor, and is suspended on the lower floor.

次に、前記の最上階の床1aの真下の床1aのケーブルダクト開口穴3の相対向する辺の前記型枠3aの上に固定した二つの取付金具4の各上部に、前記ケーブルラック2の両側枠体2aの下端両側面をボルト、ナットにより固定する。そして、当該ケーブルラック2の下に接続するケーブルラック2を、当該ケーブルダクト開口穴3に挿入して階下に降ろし、当該ケーブルラック2の両側枠体2aの上端両側面を、前記各取付金具4の下部に固定し、当該各取付金具4にその上部を支持されて階下に吊り下がったケーブルラック2の両側枠体2aの下端両側面に、さらにその真下の床1aのケーブルラック開口穴3の相対向する内周縁に固定した二つの取付金具4の各上部に固定する。この様にして上方の階から下方の階の床まで多数のケーブルラック2を敷設する。 Next, the cable rack 2 is mounted on each upper part of two mounting brackets 4 fixed on the formwork 3a on opposite sides of the cable duct opening hole 3 of the floor 1a immediately below the floor 1a on the uppermost floor. The both side surfaces of the lower end frame 2a are fixed with bolts and nuts. Then, the cable rack 2 connected to the lower side of the cable rack 2 is inserted into the cable duct opening hole 3 and lowered to the lower floor, and both upper end side surfaces of the both side frames 2a of the cable rack 2 are connected to the mounting brackets 4. Are fixed to the lower part of the cable rack 2, and the upper part of the cable rack 2 is supported by the respective mounting brackets 4 and suspended on the lower floor. It fixes to each upper part of the two mounting brackets 4 fixed to the mutually opposing inner periphery. In this way, a number of cable racks 2 are laid from the upper floor to the lower floor.

上記の方法は、ケーブルラック2を上方階から下方向に順次延伸する方法であるが、これに代えて、ケーブルラック2を下方階から上方階に向けて順次延伸する方法がある。 The above method is a method of sequentially extending the cable rack 2 from the upper floor to the lower direction. Instead, there is a method of sequentially extending the cable rack 2 from the lower floor to the upper floor.

これは、例えば、10階から20階までの間にケーブルラック2を敷設する場合、11階のケーブルダクト開口穴3を通して11階からケーブルラック2を下ろし、当該ケーブルラック2の上部を、11階のケーブルダクト開口穴3の相対向する辺の前記型枠3aの上に固定した取付金具4の下部にボルト、ナットで固定し、12階より、次のケーブルラック2を11階に向けて下ろし、当該ケーブルラック2の上部を12階のケーブルダクト開口穴3の相対向する辺の前記型枠3aの上に固定した取付金具4の下部にボルト、ナットで固定し、当該ケーブルラック2の下部を、11階の前記取付金具4の上部にボルト、ナットで固定する。次に13階から、次のケーブルラック2を12階に向けて下ろし、これを繰り返す。 For example, when the cable rack 2 is laid between the 10th floor and the 20th floor, the cable rack 2 is lowered from the 11th floor through the cable duct opening hole 3 on the 11th floor, and the upper portion of the cable rack 2 is connected to the 11th floor. The cable duct opening hole 3 is fixed to the lower part of the mounting bracket 4 fixed on the opposite side of the mold 3a with bolts and nuts, and the next cable rack 2 is lowered from the 12th floor toward the 11th floor. The upper part of the cable rack 2 is fixed to the lower part of the mounting bracket 4 fixed on the mold 3a on the opposite sides of the cable duct opening hole 3 on the 12th floor with bolts and nuts. Are fixed to the upper part of the mounting bracket 4 on the 11th floor with bolts and nuts. Next, from the 13th floor, the next cable rack 2 is lowered toward the 12th floor, and this is repeated.

また、ケーブルラック2は、予め各階の床に一つずつ用意しておいても良いし、数階おきにまとめて用意しておいても良い。上記の例では、20階から16階まで下ろされるケーブルラック2は21階に、15階から10階まで下ろされるケーブルラック2は16階に夫々まとめておく。 Further, one cable rack 2 may be prepared in advance on the floor of each floor, or may be prepared together every several floors. In the above example, the cable racks 2 lowered from the 20th floor to the 16th floor are grouped on the 21st floor, and the cable racks 2 lowered from the 15th floor to the 10th floor are grouped on the 16th floor.

また、上記実施例1では、高層ビル1の各階の床にケーブルダクト開口穴3を設けたが、タワー等の高層構造物の建築中では、床が設けられない場合がある。この様な場合、上下に一定間隔で設けられた梁を利用して当該梁に足場を設け、当該各足場にケーブルダクト開口穴3を設けたり、または、上下に一定間隔で設けられた各作業場にケーブルダクト開口穴3を設ける場合がある。これらの場合、取付金具4を梁とか作業場に直接固定するものではなく、梁とか作業場に固定した補完材等にボルト穴をあけて、ボルトにより固定する。 Moreover, in the said Example 1, although the cable duct opening hole 3 was provided in the floor of each floor of the high-rise building 1, in construction of high-rise structures, such as a tower, a floor may not be provided. In such a case, a scaffold is provided on the beam using beams provided at regular intervals in the upper and lower sides, and cable duct opening holes 3 are provided in the respective scaffolds, or each work site provided at regular intervals in the vertical direction. The cable duct opening hole 3 may be provided in the case. In these cases, the mounting bracket 4 is not directly fixed to the beam or the work place, but a bolt hole is formed in the beam or a complementary material fixed to the work place and fixed by the bolt.

また、前記取付金具4は、図3及び図4に示すように、チャネル鋼から成る接続板5を垂直に設け、当該接続板5の背面下端から略直角に伸びた当接板6を設け、これらの接続板5と当接版6とを繋ぐ二つの補強板7をこれらの両端に設け、前記接続板5の上部に二つのボルト貫通用長孔8を設け、下部に二つのボルト貫通用孔9を設けた構成である。さらに、前記当接板5には二つのボルト長孔10を設けている。 Further, as shown in FIGS. 3 and 4, the mounting bracket 4 is provided with a connection plate 5 made of channel steel vertically, and with a contact plate 6 extending substantially at a right angle from the lower back end of the connection plate 5, Two reinforcing plates 7 for connecting the connecting plate 5 and the abutment plate 6 are provided at both ends thereof, two bolt through holes 8 are provided in the upper portion of the connecting plate 5, and two bolt through holes are provided in the lower portion. In this configuration, holes 9 are provided. Further, the contact plate 5 is provided with two bolt long holes 10.

そして、この取付金具4は、図2に示すように、ケーブルダクト開口穴3の相対向する辺の型枠3aに当接板6を載せてボルト長孔10にボルトを通して床1aに固定する。また、前記チャネル鋼の接続板5の上部に、上から垂下したケーブルラック2の両側枠体2aの下端側面部を嵌めて、前記ボルト貫通用長孔8及びケーブルラックの両側枠体2aのボルト孔(図示省略)にボルトを通して止め、また、当該接続板5の下部に、下方に垂下するケーブルラック2の両側枠体2aの上端側面部を嵌めて、前記ボルト貫通用孔9及びケーブルラックの両側枠体2aのボルト孔(図示省略)にボルトを通して止める。 As shown in FIG. 2, the mounting bracket 4 is fixed to the floor 1 a by placing a contact plate 6 on the mold 3 a on the opposite side of the cable duct opening hole 3 and passing the bolt through the bolt long hole 10. Further, the lower end side surface portions of both side frames 2a of the cable rack 2 suspended from above are fitted on the upper portion of the channel steel connecting plate 5, and the bolt penetration long holes 8 and the bolts of the both sides frame 2a of the cable rack are fitted. Bolts are stopped through holes (not shown), and the upper side surfaces of both side frames 2a of the cable rack 2 hanging downward are fitted to the lower part of the connection plate 5, so that the bolt penetration holes 9 and the cable rack Bolts are fastened through bolt holes (not shown) in both side frames 2a.

前記取付金具4の接続板5の上部に設けた二つのボルト貫通用長孔8は、上からのケーブルラック2の両側枠体2aに予め設けたボルト孔と接続板5のボルト孔が一致しないとボルトを通すことができないため、余裕をもたせてボルト貫通用長孔8としたものである。これによって、上下の床1aの間隔、ケーブルラック2の長さ、取付金具4の精度に裕度を設け、作業し易いようにしている。 The two bolt through-holes 8 provided in the upper part of the connection plate 5 of the mounting bracket 4 do not coincide with the bolt holes provided in advance in the side frames 2a of the cable rack 2 from above. Since the bolt cannot pass through, the elongated hole 8 for penetrating the bolt is provided with a margin. As a result, margins are provided for the distance between the upper and lower floors 1a, the length of the cable rack 2, and the accuracy of the mounting bracket 4 to facilitate the work.

図5及び図6はこの発明の実施例2を示す。図5はタワー11の一部概略図であり、梁を利用した足場11aは上下の間隔を略均一にしている。そして隣接する各足場11aの間隔に相応する長さのケーブルラック2を用意する。このタワー11は、上方に行くに従って先細形状であるため、ケーブルラック2は、下方に従って、外側にずらして接続しなければならない。このため、前記実施例1の取付金具4と異なった構成の取付金具14を用意する。その他の構成は実施例1と略同じであり、ケーブルラック2を略同じ方法で敷設する。 5 and 6 show Embodiment 2 of the present invention. FIG. 5 is a partial schematic view of the tower 11. The scaffold 11a using beams has a substantially uniform vertical distance. A cable rack 2 having a length corresponding to the interval between the adjacent scaffolds 11a is prepared. Since the tower 11 has a tapered shape as it goes upward, the cable rack 2 must be connected to the outside while being shifted downward. For this reason, a mounting bracket 14 having a configuration different from that of the mounting bracket 4 of the first embodiment is prepared. Other configurations are substantially the same as those of the first embodiment, and the cable rack 2 is laid by substantially the same method.

この取付金具14は、図6に示すように、二つのチャネル鋼が平行して垂直に並んだ接続板15を設け、当該接続板15の背面下端から略直角に伸びた当接板16を設け、これらの接続板15と当接板16とを繋ぐ二つの補強板17をこれらの両端に設けている。また、これらの一方のチャネル鋼の上部に二つのボルト貫通用長孔18を設け、他方のチャネル鋼の下部に二つのボルト貫通用孔19を設け、前記当接板16には二つのボルト長孔20を設けている。 As shown in FIG. 6, the mounting bracket 14 is provided with a connection plate 15 in which two channel steels are arranged in parallel and vertically, and a contact plate 16 extending substantially at a right angle from the lower back end of the connection plate 15. Two reinforcing plates 17 that connect the connecting plate 15 and the contact plate 16 are provided at both ends thereof. Further, two bolt through holes 18 are provided in the upper part of one of the channel steels, two bolt through holes 19 are provided in the lower part of the other channel steel, and the abutting plate 16 has two bolt lengths. A hole 20 is provided.

この取付金具14は、接続板15の一方のチャネル鋼の上部に、上から垂下したケーブルラック2の両側枠体2aの下端側面部を嵌めて、前記ボルト貫通用長孔18及びにケーブルラック2の両側枠体2aのボルト孔(図示省略)にボルトを通して止め、前記接続板15の他方のチャネル鋼の下部に、下方に垂下したケーブルラックの両側枠体2aの上端側面部を嵌めて、前記ボルト貫通用孔19及びケーブルラック2の両側枠体2aのボルト孔(図示省略)にボルトを通して止める。これにより、足場11a箇所で、上方のケーブルラック2に対し下方のケーブルラック2は外側にずれて接続され、固定される。 The mounting bracket 14 is fitted to the upper part of one channel steel of the connection plate 15 with the lower end side surface portions of the both side frames 2a of the cable rack 2 suspended from above, and the cable rack 2 The bolt holes (not shown) of the both side frame bodies 2a are fastened with bolts, and the upper end side portions of the both side frame bodies 2a of the cable rack hanging downward are fitted to the lower part of the other channel steel of the connection plate 15, Bolts are fastened through bolt holes 19 and bolt holes (not shown) on both side frames 2 a of the cable rack 2. As a result, the lower cable rack 2 is displaced and fixed to the upper cable rack 2 at the scaffold 11a position and fixed.

図7及び図8はこの発明の実施例3を示す。図7はタワー21の一部概略図であり、梁を利用した足場21aは上下の間隔を略均一にしている。そして隣接する各足場21aの間隔に相応する長さのケーブルラック2を用意する。このタワー21は上方に行くに従って先細形状であるため、ケーブルラック2は、タワー21の外郭線に沿って傾斜して接続、敷設しなければならない。このため、前記実施例1の取付金具4の変形形状の取付金具24を用意する。その他の構成は実施例1と略同じであり、ケーブルラック2を略同じ方法で敷設する。 7 and 8 show Embodiment 3 of the present invention. FIG. 7 is a partial schematic view of the tower 21. The scaffold 21a using beams has a substantially uniform vertical distance. A cable rack 2 having a length corresponding to the interval between the adjacent scaffolds 21a is prepared. Since the tower 21 has a tapered shape as it goes upward, the cable rack 2 must be inclined and connected and laid along the outline of the tower 21. For this reason, a modified mounting bracket 24 of the mounting bracket 4 of the first embodiment is prepared. Other configurations are substantially the same as those of the first embodiment, and the cable rack 2 is laid by substantially the same method.

この取付金具24は、実施例1の取付金具4と略同じ構成であるが、接続板25が当接板26に対して傾斜しており、上下のケーブルラック2の傾斜に合わせている。これに伴い、二つのボルト貫通用長孔28及び二つのボルト貫通用孔29も接続板25の傾斜に沿って傾斜した位置に設けられている。また、二つの補強板27は当接板26に垂直に設けられている。この取付金具24の使用方法は、実施例1の取付金具4と略同じである。 The mounting bracket 24 has substantially the same configuration as the mounting bracket 4 of the first embodiment, but the connection plate 25 is inclined with respect to the contact plate 26, and is matched to the inclination of the upper and lower cable racks 2. Accordingly, the two bolt penetration holes 28 and the two bolt penetration holes 29 are also provided at positions inclined along the inclination of the connection plate 25. The two reinforcing plates 27 are provided perpendicular to the contact plate 26. The method of using the mounting bracket 24 is substantially the same as that of the mounting bracket 4 of the first embodiment.

なお、上記実施例では取付金具4、14、24のいずれの場合も、ケーブルダクト開口穴3の相対向する辺の型枠3aや補完材にボルト等で固定する構成となっているが、ケーブルダクト開口穴周辺の床等にこれらの型枠や補完材を設けず、直接取付金具を床等に固定する場合もある。 In the above embodiment, in any of the mounting brackets 4, 14, 24, the cable duct opening hole 3 is configured to be fixed to the formwork 3 a on the opposite side of the cable duct 3 or a complementary material with a bolt or the like. In some cases, the mounting bracket is directly fixed to the floor or the like without providing these molds or supplementary materials on the floor or the like around the duct opening hole.

この発明の実施例1の高層ビルにおける敷設方法を示す概略構成図である。It is a schematic block diagram which shows the laying method in the high-rise building of Example 1 of this invention. この発明の実施例1の敷設方法の取付金具箇所の詳細を示す斜視図である。It is a perspective view which shows the detail of the attachment bracket location of the laying method of Example 1 of this invention. この発明の実施例1に使用する取付金具の斜視図である。It is a perspective view of the attachment metal fitting used for Example 1 of this invention. この発明の実施例1に使用する取付金具の背面図である。It is a rear view of the attachment metal fitting used for Example 1 of this invention. この発明の実施例2のタワーにおける敷設方法を示す概略構成図である。It is a schematic block diagram which shows the laying method in the tower of Example 2 of this invention. この発明の実施例2の敷設方法に使用する取付金具の斜視図である。It is a perspective view of the attachment metal fitting used for the laying method of Example 2 of this invention. この発明の実施例3のタワーにおける敷設方法を示す概略構成図である。It is a schematic block diagram which shows the laying method in the tower of Example 3 of this invention. この発明の実施例3の敷設方法に使用する取付金具の背面図である。It is a rear view of the mounting bracket used for the laying method of Example 3 of this invention.

1 高層ビル 2 ケーブルラック
3 ケーブルダクト開口穴 4 取付金具
5 接続板 6 当接板
7 補強板 8 ボルト貫通用長孔
9 ボルト貫通用孔 10 ボルト孔
11 タワー 14 取付金具
21 タワー 24 取付金具
DESCRIPTION OF SYMBOLS 1 High-rise building 2 Cable rack 3 Cable duct opening hole 4 Mounting bracket 5 Connection plate 6 Contact plate 7 Reinforcement plate 8 Bolt penetration long hole 9 Bolt penetration hole 10 Bolt hole 11 Tower 14 Mounting bracket 21 Tower 24 Mounting bracket

Claims (5)

構造体の上部の階から下部の階まで、電力ケーブルや通信ケーブル等を支持するケーブルラックを敷設する工法において、
上下に隣接する各階の床の間隔、梁に設けた上下に隣接する足場の間隔、又は上下に隣接する作業場の間隔のいずれかと略同じ長さのケーブルラックを予め必要数用意し、
当該各ケーブルラックを床、足場又は作業場のいずれかに設けたケーブルダクト開口穴から下ろして、当該ケーブルラックの上端を、前記ケーブルダクト開口穴の縁周りに固定した取付金具の下部に固定し、
当該ケーブルラックの下端を、上下に隣接する下方の床、足場又は作業場のいずれかに設けたケーブルダクト開口穴の縁周りに固定した取付金具の上部に固定し、
この様にして、各階の床、梁に設けた足場、又は作業場の何れかのケーブルダクト開口穴の縁周りに固定した取付金具に各ケーブルラックの上下端を固定することを特徴とする、ケーブルラックの縦方向の敷設工法。
In the construction method of laying cable racks that support power cables and communication cables from the upper floor to the lower floor of the structure,
Prepare in advance the required number of cable racks having the same length as either the space between the floors adjacent to each other above and below, the space between the upper and lower scaffolds provided on the beams, or the space between the upper and lower work spaces,
Each cable rack is lowered from the cable duct opening hole provided on either the floor, scaffolding or work place, and the upper end of the cable rack is fixed to the lower part of the mounting bracket fixed around the edge of the cable duct opening hole,
Fix the lower end of the cable rack to the upper part of the mounting bracket fixed around the edge of the cable duct opening hole provided in either the lower floor, scaffolding or work place adjacent to the upper and lower sides,
In this way, the cables are characterized in that the upper and lower ends of each cable rack are fixed to mounting brackets fixed around the edge of the cable duct opening hole in any floor, beam scaffolding, or work floor. Laying method in the vertical direction of the rack.
前記取付金具の上部に、上方から垂下したケーブルラックの下端をボルト、ナットで固定するボルト貫通用長孔を設け、前記取付金具の下部に、下方に垂下するケーブルラックの上端をボルト、ナットで固定するボルト貫通用孔を設けたことを特徴とする、請求項1に記載のケーブルラックの縦方向の敷設工法。   A bolt penetration long hole for fixing the lower end of the cable rack hanging from above with bolts and nuts is provided at the upper part of the mounting bracket, and the upper end of the cable rack hanging downward is provided with bolts and nuts at the lower part of the mounting bracket. The method for laying a cable rack in a vertical direction according to claim 1, wherein a bolt penetration hole to be fixed is provided. 取付金具は、チャネル鋼から成る接続板を略垂直に設け、当該接続板の背面下端から略直角に伸びた当接板を設け、これらの接続板と当接版とを繋ぐ補強板を設け、前記接続板の上部にボルト貫通用長孔を設け、下部にボルト貫通用孔を設け、前記当接板は床、足場又は作業場のいずれかに載せて固定し、前記接続板の上部に、上から垂下したケーブルラックの下端側部を嵌めて、前記ボルト貫通用長孔にボルトを通して止め、前記接続板の下部に、下方に垂下したケーブルラックの上端側部を嵌めて、前記ボルト貫通用孔にボルトを通して止める構成であることを特徴とする、請求項1又は2の敷設工法に使用するケーブルラックの取付金具。   The mounting bracket is provided with a connection plate made of channel steel substantially perpendicularly, provided with a contact plate extending substantially perpendicularly from the lower back end of the connection plate, and provided with a reinforcing plate that connects these connection plates and the contact plate, Bolt penetration holes are provided in the upper part of the connection plate, bolt penetration holes are provided in the lower part, and the contact plate is fixed on a floor, a scaffold, or a work place. Fit the lower end side of the cable rack suspended from the bolt, stop the bolt through the bolt penetration long hole, and fit the upper end side of the cable rack hanging downward to the lower part of the connection plate, A cable rack mounting bracket used in the laying method according to claim 1 or 2, characterized in that a bolt is passed through a bolt. 前記構造体が上方へ行くにつれて先細形状である構造体において、
前記取付金具には二つのチャネル鋼が平行して略垂直に並んだ接続板を設け、一方のチャネル鋼には上から垂下したケーブルラックを固定し、他方のチャネル鋼には、下方に垂下したケーブルラックを固定し、
前記各階の床、梁に設けた足場、又は作業場のいずれかで、上方のケーブルラックに対して下方のケーブルラックを外側にずれて固定することにより、常に構造体の内側にケーブルラックを近づけて敷設することを特徴とする、請求項1又は2に記載のケーブルラックの縦方向の敷設工法。
In the structure having a tapered shape as the structure goes upward,
The mounting bracket is provided with a connection plate in which two channel steels are arranged in parallel and substantially vertically, and a cable rack hanging from above is fixed to one channel steel, and the other channel steel is suspended downward. Secure the cable rack,
The cable rack is always brought closer to the inside of the structure by fixing the lower cable rack to the outside relative to the upper cable rack on either the floor of each floor, the scaffolding provided on the beam, or the work place. The cable rack laying method according to claim 1 or 2, wherein the cable rack is laid.
二つのチャネル鋼が平行して垂直に並んだ接続板を設け、当該接続板の背面下端から略直角に伸びた当接板を設け、これらの接続板と当接板とを繋ぐ補強板を設け、これらの一方のチャネル鋼の上部にボルト貫通用長孔を設け、他方のチャネル鋼の下部にボルト貫通用孔を設け、前記当接板は床、梁に設けた足場、又は作業場のいずれかに載せて固定し、 前記接続板の一方のチャネル鋼の上部に、上から垂下したケーブルラックの下端側部を嵌めて、前記ボルト貫通用長孔にボルトを通して止め、前記接続板の他方のチャネル鋼の下部に、下方に垂下したケーブルラックの上端側部を嵌めて、前記ボルト貫通用孔にボルトを通して止める構成であることを特徴とする、請求項4の敷設工法に使用するケーブルラックの取付金具。   A connection plate in which two channel steels are arranged in parallel and vertically is provided, a contact plate extending substantially perpendicularly from the lower end of the back of the connection plate is provided, and a reinforcing plate is provided to connect these connection plates and the contact plate The long hole for bolt penetration is provided in the upper part of one of these channel steels, the hole for bolt penetration is provided in the lower part of the other channel steel, and the contact plate is either a scaffold provided on the floor, a beam, or a work place. The lower end side of the cable rack suspended from above is fitted on the upper part of one channel steel of the connection plate, and the bolt is passed through the bolt penetration slot, and the other channel of the connection plate is fixed. 5. A cable rack for use in the laying method according to claim 4, wherein the upper end side portion of the cable rack hanging downward is fitted in the lower part of the steel and the bolt is passed through the bolt penetration hole. Hardware.
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KR101358917B1 (en) 2012-03-07 2014-02-05 강승국 Connector for vertical type cable tray and cable tray constructing method thereof
JP2020005362A (en) * 2018-06-26 2020-01-09 株式会社竹中工務店 Cable rack installation structure, cable rack constructing method, and support frame

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JPH09294318A (en) * 1996-04-24 1997-11-11 Taisei Corp Installing method for cable rack
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JPH09294318A (en) * 1996-04-24 1997-11-11 Taisei Corp Installing method for cable rack
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JP2002325329A (en) * 2001-04-24 2002-11-08 Burest Kogyo Kenkyusho Co Ltd Reinforcement metal fitting for bracket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358917B1 (en) 2012-03-07 2014-02-05 강승국 Connector for vertical type cable tray and cable tray constructing method thereof
JP2020005362A (en) * 2018-06-26 2020-01-09 株式会社竹中工務店 Cable rack installation structure, cable rack constructing method, and support frame

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