JP2006193937A

JP2006193937A - Treatment structure of duct penetration section

Info

Publication number: JP2006193937A
Application number: JP2005005009A
Authority: JP
Inventors: Shuhei Oyama; 秀平尾山
Original assignee: Shin Nippon Air Technologies Co Ltd
Current assignee: Shin Nippon Air Technologies Co Ltd
Priority date: 2005-01-12
Filing date: 2005-01-12
Publication date: 2006-07-27

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment structure of a duct penetration section capable of installing a form only from an upper floor side without being required for installing a scaffold in a lower floor. <P>SOLUTION: A square sleeve 1 larger than a caliber of a square duct 2 is previously buried and fixed to a duct penetration planned site of a floor slab F, width dimensions are made to correspond to gap dimensions between the square duct 2 and the square sleeve 1 in a state to make the square duct 2 penetrate, and gap blockade materials 3 molded in an approximately U-shape consisting of both right and left side latching sections 3a and 3a, hanging down sections 3b and 3b hung down from those latching sections 3a and 3a and a bottom plate section 3c interconnecting both lower end sections of the hanging down sections 3b and 3b are brought in, a gap M in each side is blockaded by installing each latching section 3a of the gap blockade material 3 in a state to latch an upper edge of the square sleeve 1 to the gap M in each side formed on the circumference of the square sleeve 1, and the gap M is filled with an inorganic fibrous material or a mortar. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、床版又は壁を貫通するように設置されたダクトの貫通部処理構造に関する。 The present invention relates to a through-hole treatment structure for a duct installed so as to penetrate a floor slab or a wall.

一般のビル構造物においては、床を貫通して上下階方向に竪ダクトを配設することが行われる。従来は、図５に示されるように、床版Ｆを貫通するようにダクト５１を配設する場合は、予め床版Ｆの打設施工時にスリーブ５０を床版Ｆに埋設固定しておき、ダクト５１を前記スリーブ５０に貫通させた状態で、下版下面に型枠５２を設置してダクト５１とスリーブ５０との隙間Ｍを封鎖した後、上方側から前記隙間Ｍに、ロックウール５３を充填したり、場合によってはモルタルを充填するようにしている（例えば、下記特許文献１等参照）。
特開２０００−６５２５１号公報 In a general building structure, a vertical duct is disposed in the upper and lower floor directions through the floor. Conventionally, as shown in FIG. 5, when the duct 51 is disposed so as to penetrate the floor slab F, the sleeve 50 is embedded and fixed to the floor slab F in advance when the floor slab F is placed, With the duct 51 passing through the sleeve 50, a mold 52 is installed on the lower surface of the lower plate to seal the gap M between the duct 51 and the sleeve 50, and then the rock wool 53 is inserted into the gap M from above. In some cases, mortar is filled (see, for example, Patent Document 1 below).
JP 2000-65251 A

しかしながら、上記従来法によるダクト貫通部構造の場合には、床版下面に型枠５２を固定配置するために下階側に足場を組む必要があった。そのため、作業に手間が掛かり施工を効率的に行うことができないとともに、前記型枠５２が剥がれたり、型枠５２を止めているビス等が振動や経年劣化により脱落することがあるなどの問題ががあった。
そこで本発明の主たる課題は、下階に足場を設置する必要が無く、上階側からのみの作業で型枠を設置でき、かつ将来に亘り前記型枠の脱落のおそれがないダクト貫通部の処理構造を提供することにある。 However, in the case of the duct penetrating structure according to the conventional method, it is necessary to assemble a scaffold on the lower floor side in order to fix and arrange the mold 52 on the lower surface of the floor slab. For this reason, the work is troublesome and the construction cannot be performed efficiently, and the mold 52 is peeled off, and the screws or the like holding the mold 52 may fall off due to vibration or aging deterioration. was there.
Therefore, the main problem of the present invention is that there is no need to install a scaffold on the lower floor, the formwork can be installed only from the upper floor side, and there is no risk of dropping the formwork in the future. It is to provide a processing structure.

前記課題を解決するために請求項１に係る本発明として、床版を貫通して縦方向に角形ダクトを配設したダクト貫通部の処理構造であって、
前記床版のダクト貫通予定部位に予め前記角形ダクトの口径よりも大きな角形スリーブを埋設固定しておき、前記角形スリーブの略中心に角形ダクトを貫通させた状態で、前記角形ダクトと角形スリーブとの間の隙間寸法に対応する幅寸法とされ、かつ左右両側の掛止部と、これら掛止部から垂下する垂下部と、垂下部の下端部同士を連結する底板部とからなる略コ字状に成形された隙間封鎖材を持ち込み、前記角形ダクトの周囲に形成された各辺毎の隙間部に対して、前記隙間封鎖材の掛止部を前記角形スリーブの上縁に掛止させた状態で設置することにより各辺毎の隙間を封鎖し、前記隙間部に無機質系繊維材又はモルタルを充填したことを特徴とするダクト貫通部の処理構造が提供される。 In order to solve the above-mentioned problem, the present invention according to claim 1 is a processing structure of a duct penetrating portion in which a rectangular duct is disposed in a vertical direction through a floor slab,
A square sleeve larger than the diameter of the square duct is embedded and fixed in advance in the duct penetration planned portion of the floor slab, and the square duct and the square sleeve are in a state where the square duct is penetrated substantially at the center of the square sleeve. A substantially U-shape comprising a width dimension corresponding to a gap dimension between the left and right sides, a hanging part hanging from these hanging parts, and a bottom plate part connecting the lower ends of the hanging parts. The gap sealing material formed in the shape was brought into contact with the upper edge of the rectangular sleeve with respect to the gap portion for each side formed around the rectangular duct. By installing in a state, a gap for each side is sealed, and a treatment structure for a duct penetrating portion is provided in which the gap is filled with an inorganic fiber material or mortar.

上記請求項１記載の本発明においては、角形ダクト周囲の隙間を封鎖するに当たり、隙間寸法に対応する幅寸法とされ、かつ左右両側の掛止部と、これら掛止部から垂下する垂下部と、垂下部の下端部同士を連結する底板部とからなる略コ字状に成形された隙間封鎖材を持ち込み、４辺の隙間を前記隙間封鎖材によって封鎖するようにした。この隙間封鎖材は、上方側から挿入し、掛止部を角形スリーブの上縁部に掛止することにより設置可能であるため、下階に足場を設置する必要が無く、上階側からのみの作業で型枠を設置できるようになる。また、将来に亘り前記型枠の脱落のおそれがないものとできる。 In the present invention described in claim 1, in sealing the gap around the rectangular duct, the width is set to a width corresponding to the gap dimension, and the right and left latching portions, and the hanging portion depending from these latching portions, The gap sealing material formed in a substantially U-shape consisting of the bottom plate parts connecting the lower ends of the hanging parts was brought in, and the gaps on the four sides were sealed with the gap sealing material. This gap sealant can be installed by inserting from above and hooking the latching part on the upper edge of the square sleeve, so there is no need to install a scaffold on the lower floor, only from the upper floor It becomes possible to install the formwork in the work. In addition, there is no possibility that the mold will fall off in the future.

請求項２に係る本発明として、前記角形ダクトは上縁部に周方向に亘る鍔フランジが形成され、前記隙間封鎖材の掛止部を前記鍔フランジに載置させた後、前記掛止部を鍔フランジにビス止めする請求項１記載のダクト貫通部の処理構造が提供される。 As the present invention according to claim 2, the square duct is formed with a flange flange extending in a circumferential direction at an upper edge portion, and after the latching portion of the gap sealing material is placed on the flange flange, the latching portion 2. A processing structure for a duct penetrating portion according to claim 1, wherein a screw is fastened to the flange.

上記請求項２記載の本発明においては、角形ダクトは上縁部に周方向に亘る鍔フランジが形成され、前記隙間封鎖材の掛止部を前記鍔フランジに載置させた後、前記掛止部を鍔フランジにビス止めするようにする。上記構造を採用することによって、前記隙間封鎖材を角形スリーブに堅固に固定することが可能となる。 In the present invention according to claim 2, the rectangular duct has a flange formed in the circumferential direction at the upper edge, and after the latching portion of the gap sealing material is placed on the flange, the latch Screw the part to the flange. By adopting the above structure, the gap sealing material can be firmly fixed to the square sleeve.

請求項３に係る本発明として、前記無機質系繊維材はロックウール、グラスウールのいずれかとする請求項１、２いずれかに記載のダクト貫通部の処理構造が提供される。 According to a third aspect of the present invention, there is provided the duct penetration portion processing structure according to the first or second aspect, wherein the inorganic fiber material is either rock wool or glass wool.

以上詳説のとおり本発明によれば、下階に足場を設置する必要が無く、上階側からのみの作業で型枠（隙間封鎖材）を設置できるため、ダクト貫通部の処理を省力化でき、作業を効率的に行うことができる。また、将来に亘り前記型枠の脱落のおそれがないものとなる。 As described above in detail, according to the present invention, it is not necessary to install a scaffold on the lower floor, and the formwork (gap sealing material) can be installed only from the upper floor side, so that the processing of the duct penetrating portion can be saved. , Work can be done efficiently. In addition, there will be no fear of dropping the formwork in the future.

以下、本発明の実施の形態について図面を参照しながら詳述する。
図１は本発明に係るダクト貫通部の縦断面図であり、図２は図１のII−II線矢視図（充填材省略）である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is a longitudinal sectional view of a duct penetrating portion according to the present invention, and FIG. 2 is a view taken along the line II-II in FIG. 1 (filler omitted).

図１において、床版Ｆのダクト貫通部位には、予め角形スリーブ１が埋設固定される。この角形スリーブ１は、貫通する角形ダクト２の口径よりも大きな開口サイズとされるとともに、図２にも示されるように、上縁部には周方向に亘って鍔フランジ１ａが形成されている。また、外面側にアンカー材１ｂ、１ｂ…が設けられ、床版Ｆの打設時にダクト貫通部位に据え付けられ、床版Ｆに対して堅固に固定される。 In FIG. 1, a square sleeve 1 is embedded and fixed in advance in a duct penetration portion of the floor slab F. The rectangular sleeve 1 has an opening size larger than the diameter of the penetrating rectangular duct 2 and, as shown in FIG. 2, a flange 1a is formed on the upper edge portion in the circumferential direction. . Further, anchor materials 1b, 1b,... Are provided on the outer surface side, and are installed at the duct penetration site when the floor slab F is placed, and are firmly fixed to the floor slab F.

その後、ダクト工事時に角形スリーブ１の略中心に角形ダクト２を貫通させた状態では、角形ダクト２の周囲に亘り、角形スリーブ１との間に所定幅の隙間Ｍが形成されるようになっている。 Thereafter, when the rectangular duct 2 is passed through substantially the center of the rectangular sleeve 1 at the time of duct construction, a gap M having a predetermined width is formed between the rectangular sleeve 2 and the square duct 2. Yes.

本発明では、前記隙間Ｍを封鎖するための部材として、図２に示されるように、略コ字状を成す隙間封鎖材３が使用される。 In the present invention, as a member for sealing the gap M, a gap sealing material 3 having a substantially U-shape is used as shown in FIG.

この隙間封鎖材３は、ほぼ前記角形ダクト２と角形スリーブ１との間の隙間寸法に対応する幅寸法とされ、かつ左右両側の掛止部３ａ、３ａと、これら掛止部３ａ、３ａから垂下する垂下部３ｂ、３ｂと、垂下部３ｂ、３ｂの下端部同士を連結する底板部３ｃとから構成される部材である。前記掛止部３ａにはビス孔が形成されているとともに、前記垂下部３ｂの長さ寸法はほぼ前記角形スリーブ１の高さ寸法以内とされ、前記底板部３ｃの長さ寸法はほぼ角形スリーブ１の開口辺長とされる。 The gap sealing material 3 has a width dimension substantially corresponding to the gap dimension between the rectangular duct 2 and the rectangular sleeve 1, and the left and right latching portions 3a, 3a and the latching portions 3a, 3a. It is a member comprised from the hanging parts 3b and 3b which hang down, and the baseplate part 3c which connects the lower end parts of the hanging parts 3b and 3b. The hook portion 3a is formed with a screw hole, the length of the hanging portion 3b is substantially within the height of the rectangular sleeve 1, and the length of the bottom plate portion 3c is substantially rectangular. The opening side length is 1.

先ず、図３に示されるように、角形ダクト２の周囲に形成されている隙間Ｍの内、対辺の関係にある隙間Ｍ、Ｍに対して、それぞれ前記隙間封鎖材３を設置し底板部３ｃにより隙間Ｍ、Ｍを封鎖する。設置は、隙間封鎖材３を隙間Ｍに上方側から挿入し、掛止部３ａ、３ａを角形スリーブ１の鍔フランジ１ａ、１ａに載置し、該掛止部３ａを鍔フランジ１ａにビス４，４により固定する。 First, as shown in FIG. 3, the gap sealing material 3 is installed in each of the gaps M and M that are opposite to each other among the gaps M formed around the rectangular duct 2, and the bottom plate portion 3c. To seal the gaps M and M. For installation, the gap sealing material 3 is inserted into the gap M from above, and the latching portions 3a and 3a are placed on the flange flanges 1a and 1a of the square sleeve 1, and the latching portion 3a is attached to the flange flange 1a with screws 4. , 4 to fix.

次に、図４に示されるように、残り２辺の隙間Ｍ、Ｍに対して、同様の要領により、隙間封鎖材３を設置し、底板部３ｃにより隙間Ｍ、Ｍを封鎖するようにする。なお、隙間封鎖材３として、先に設置した対向２辺の隙間封鎖材３と同寸法の隙間封鎖材３を用いた場合には、掛止部３ａ、３ａを角形スリーブ１の鍔フランジ１ａ、１ａにビス固定するに当たり、掛止部３ａと鍔フランジ１ａとの間に厚み分に相当するライナー材を介在するのが望ましい。 Next, as shown in FIG. 4, the gap sealing material 3 is installed in the same manner with respect to the gaps M and M of the remaining two sides, and the gaps M and M are sealed by the bottom plate portion 3c. . In addition, when the gap sealing material 3 having the same dimensions as the gap sealing material 3 on the opposite two sides previously installed is used as the gap sealing material 3, the hook portions 3a and 3a are connected to the flanges 1a of the square sleeve 1, When fixing the screw to 1a, it is desirable to interpose a liner material corresponding to the thickness between the hooking portion 3a and the flange flange 1a.

前記４つの隙間封鎖材３，３…により角形ダクト２周囲の隙間Ｍが封鎖されたならば、該隙間Ｍに無機質系繊維材又はモルタルを充填し施工を完了する。
なお、前記無機質系繊維材としては、一般的に使用されているロックウール、グラスウールのいずれかとすることができる。また、モルタルを充填する場合には、隙間封鎖材３とこれに隣接する部材との間に生じている僅かの隙間を封鎖するため、封鎖テープを貼設するか、シーリング材を施工するのが望ましい。 When the gap M around the rectangular duct 2 is blocked by the four gap sealing materials 3, 3,..., The gap M is filled with an inorganic fiber material or mortar, and the construction is completed.
In addition, as said inorganic type fiber material, it can be set as either the rock wool generally used and glass wool. Moreover, when filling mortar, in order to seal the slight gap which has arisen between the gap sealing material 3 and the member adjacent to this, a sealing tape is affixed or a sealing material is applied. desirable.

〔他の形態例〕
(1)上記形態例では、床版Ｆを貫通する竪ダクトの貫通部処理構造について述べたが、本発明は壁材を貫通する横ダクトに対して同様の要領により適用することが可能である。
(2)上記形態例では、充填材として無機質系繊維材又はモルタルを用いたが、樹脂発泡材（例えば、発泡スチレン等）を使用することが可能である。 [Other examples]
(1) In the above-described embodiment, the penetrating part treatment structure of the vertical duct penetrating the floor slab F has been described. However, the present invention can be applied to the horizontal duct penetrating the wall material in the same manner. .
(2) In the above embodiment, an inorganic fiber material or mortar is used as the filler, but a resin foam material (for example, foamed styrene) can be used.

本発明に係るダクト貫通部の縦断面図である。It is a longitudinal cross-sectional view of the duct penetration part which concerns on this invention. 図１のII−II線矢視図である（充填材省略）。FIG. 2 is a view taken along the line II-II in FIG. 1 (filler omitted). 施工手順（その１）である。It is a construction procedure (part 1). 施工手順（その２）である。It is a construction procedure (part 2). 従来のダクト貫通部の縦断面図である。It is a longitudinal cross-sectional view of the conventional duct penetration part.

Explanation of symbols

１…角形スリーブ、１ａ…鍔フランジ、２…角形ダクト、３…隙間封鎖材、３ａ…掛止部、３ｂ…垂下部、３ｃ…底板部、４…ビス DESCRIPTION OF SYMBOLS 1 ... Square sleeve, 1a ... Gutter flange, 2 ... Square duct, 3 ... Gap sealing material, 3a ... Hanging part, 3b ... Hanging part, 3c ... Bottom plate part, 4 ... Screw

Claims

A processing structure of a duct penetrating portion in which a square duct is arranged in a vertical direction through a floor slab,
A square sleeve larger than the diameter of the square duct is embedded and fixed in advance in the duct penetration planned portion of the floor slab, and the square duct and the square sleeve are in a state where the square duct is penetrated substantially at the center of the square sleeve. A substantially U-shape comprising a width dimension corresponding to a gap dimension between the left and right sides, a hanging part hanging from these hanging parts, and a bottom plate part connecting the lower ends of the hanging parts. The gap sealing material formed in the shape was brought into contact with the upper edge of the rectangular sleeve with respect to the gap portion for each side formed around the rectangular duct. A processing structure for a duct penetrating part, wherein the gap is sealed for each side by being installed in a state, and the gap part is filled with an inorganic fiber material or mortar.

The square duct is formed with a flange flange extending in the circumferential direction at an upper edge portion, and after the latching portion of the gap sealing material is placed on the flange flange, the latching portion is screwed to the flange flange. The processing structure of the duct penetration part of 1 description.

The processing structure of a duct penetration part according to claim 1, wherein the inorganic fiber material is either rock wool or glass wool.