JP7160634B2 - Joint structure of outer wall slab and building - Google Patents

Joint structure of outer wall slab and building Download PDF

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JP7160634B2
JP7160634B2 JP2018205033A JP2018205033A JP7160634B2 JP 7160634 B2 JP7160634 B2 JP 7160634B2 JP 2018205033 A JP2018205033 A JP 2018205033A JP 2018205033 A JP2018205033 A JP 2018205033A JP 7160634 B2 JP7160634 B2 JP 7160634B2
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fixing member
building
joint structure
wall slab
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崇 菅原
大地 木村
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Asahi Kasei Homes Corp
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Description

本発明は、足場を建物の躯体に接続するための固定部材を備えた建物における、外壁版の目地構造、及び建物に関する。 TECHNICAL FIELD The present invention relates to a joint structure of an outer wall slab in a building provided with fixing members for connecting scaffolding to the skeleton of the building, and the building.

従来、建物の周囲に足場を設置して外壁の施工作業等を行うことがある。そして、足場の安定性を高めるために、壁つなぎ用のアンカー部材等を介して、足場を建物の躯体に接続する方法が知られている。 BACKGROUND ART Conventionally, scaffolding is installed around a building in some cases to perform work such as construction of an outer wall. In order to increase the stability of the scaffolding, a method is known in which the scaffolding is connected to the frame of the building via wall-connecting anchor members or the like.

例えば、特許文献1には、壁つなぎ用のアンカー部材を建物の躯体に接続するための壁つなぎ取付金物が開示されている。当該壁つなぎ取付金物は、一端側に、建物の鉄骨柱に係合可能なフック部が設けられ、他端側に、アンカー部材を接続可能な接続部が設けられたものである。 For example, Patent Literature 1 discloses a wall-connecting fitting for connecting a wall-connecting anchor member to a building skeleton. The wall tie fitting has a hook portion that can be engaged with a steel frame column of a building on one end side, and a connection portion that can connect an anchor member on the other end side.

そして、この壁つなぎ取付金物は、複数の外壁版(外壁パネル)により構成される外壁において、左右に隣接する外壁版間の縦目地部を通してフック部を建物の鉄骨柱に係合させるとともに、他端側の接続部を縦目地部から外部に突出させた状態で、接続部に足場側のアンカー部材を接続して使用する。 In an outer wall composed of a plurality of outer wall panels (outer wall panels), this wall connecting fitting engages a hook portion with a steel frame column of a building through a vertical joint between laterally adjacent outer wall panels. An anchor member on the scaffolding side is connected to the connecting portion in a state in which the connecting portion on the end side protrudes outside from the vertical joint portion.

特開平5-340087号公報JP-A-5-340087

しかしながら、上記の特許文献1に記載された壁つなぎ取付金物は、左右に隣接する外壁版間の縦目地部に配置することを前提としている。そのため、例えば、各外壁版がロッキング構法により躯体に取付けられた建物のように、左右に隣接する外壁版間の縦目地部の隙間が小さい場合、または隙間がない場合には、使用することが困難である。 However, the wall joint mounting hardware described in Patent Literature 1 is based on the premise that it is arranged at the vertical joint portion between the laterally adjacent outer wall plates. For this reason, it can be used when the vertical joints between the laterally adjoining outer wall slabs have small gaps or no gaps, for example, in buildings where each slab is attached to the frame using the rocking construction method. Have difficulty.

また、壁つなぎ取付金物の設置間隔は、足場の強度を確保する観点から、所定の範囲に定められている。特許文献1の壁つなぎ取付金物は、左右に隣接する外壁版間の縦目地部に配置するものであるため、当該縦目地部の位置を上記所定の設置間隔に合わせなければならず、外壁版の割り付けに影響が生じる虞がある。 In addition, the installation interval of the wall connecting fittings is set within a predetermined range from the viewpoint of ensuring the strength of the scaffolding. Since the wall connecting fittings of Patent Document 1 are arranged at the vertical joints between the laterally adjoining outer wall slabs, the positions of the vertical joints must be aligned with the above-mentioned predetermined installation intervals, and the slabs of the right and left sides must be positioned at the same intervals. allocation may be affected.

それゆえ本発明は、外壁版がロッキング構法により躯体に取り付けられる建物においても足場を躯体に接続可能とし、また、外壁版の割り付けに影響が生じ難い構成とした、外壁版の目地構造及び建物を提供することを目的とする。 Therefore, the present invention provides an exterior wall slab joint structure and a building in which a scaffolding can be connected to the building frame even in a building in which the exterior wall slabs are attached to the building frame by a rocking construction method, and the layout of the exterior wall slabs is less likely to be affected. intended to provide

本発明は、外壁を構成する複数の外壁版が躯体に対してロッキング構法によって取り付けられており、足場接続用のアンカー部材を接続可能な固定部材が躯体に固定される建物における、外壁版の目地構造であって、
前記固定部材が、上下に配置された外壁版間の横目地部に配置されることを特徴とするものである。
The present invention relates to the joints of the outer wall slabs in a building in which a plurality of outer wall slabs constituting an outer wall are attached to a building frame by a locking construction method, and fixing members connectable with anchor members for connecting scaffolding are fixed to the building frame. is a structure,
The fixing member is characterized in that it is arranged at the horizontal joint portion between the outer wall panels arranged vertically.

なお、本発明の外壁版の目地構造にあっては、前記固定部材の上方又は下方に位置する前記外壁版の何れか一方のみに、該固定部材を配置するための切欠き部が形成されていることが好ましい。 In addition, in the joint structure of the outer wall slab of the present invention, a notch for arranging the fixing member is formed only in either one of the outer wall slabs positioned above or below the fixing member. preferably.

また、本発明の外壁版の目地構造にあっては、前記固定部材は、前記横目地部の目地幅の中心よりも下側に偏心して配置されることが好ましい。 Further, in the joint structure of the outer wall slab of the present invention, it is preferable that the fixing member is arranged eccentrically below the center of the joint width of the horizontal joint portion.

また、本発明の外壁版の目地構造にあっては、前記固定部材は、前記外壁版の横幅の中央部に配置されることが好ましい。 Further, in the joint structure of the outer wall slab of the present invention, it is preferable that the fixing member is arranged at the center of the width of the outer wall slab.

また、本発明の外壁版の目地構造にあっては、前記固定部材は、前記アンカー部材を接続可能な雌ねじを有することが好ましい。 Moreover, in the joint structure of the outer wall slab of the present invention, it is preferable that the fixing member has a female thread capable of connecting the anchor member.

また、本発明の外壁版の目地構造にあっては、前記固定部材は、前記躯体を構成する梁の上側フランジの下面側に固定されることが好ましい。 Moreover, in the joint structure of the outer wall slab of the present invention, it is preferable that the fixing member is fixed to the lower surface side of the upper flange of the beam that constitutes the frame.

また、本発明の外壁版の目地構造にあっては、前記固定部材は、該固定部材の先端が前記外壁の表面に露出するように配置されることが好ましい。 Further, in the joint structure of the outer wall slab of the present invention, it is preferable that the fixing member is arranged so that the tip of the fixing member is exposed on the surface of the outer wall.

また、本発明の建物は、上記の何れかの外壁版の目地構造を備えることを特徴とする。 Moreover, the building of the present invention is characterized by comprising any of the joint structures of the outer wall slabs described above.

本発明によれば、外壁版がロッキング構法により躯体に取り付けられる建物においても足場を躯体に接続可能とし、また、外壁版の割り付けに影響が生じ難い構成とした、外壁版の目地構造及び建物を提供することができる。 According to the present invention, even in a building in which the outer wall slabs are attached to the building frame by the rocking construction method, scaffolding can be connected to the building frame, and the layout of the outer wall slabs is less likely to be affected. can provide.

本発明の一実施形態としての外壁版の目地構造を示す鉛直方向の断面図である。1 is a vertical cross-sectional view showing a joint structure of an outer wall slab as one embodiment of the present invention. FIG. 図1の外壁版の目地構造の正面図である。2 is a front view of the joint structure of the outer wall slab of FIG. 1; FIG. 固定部材の一例を示す平面図である。It is a top view which shows an example of a fixing member. 図3の固定部材の側面図である。4 is a side view of the fixing member of FIG. 3; FIG.

以下、本発明の一実施形態について、図面を参照しつつ説明する。なお、各図において共通する構成には同一の符号を付している。 An embodiment of the present invention will be described below with reference to the drawings. In addition, the same code|symbol is attached|subjected to the structure which is common in each figure.

図1は、建物100における外壁版の目地構造1を示す鉛直方向の断面図(縦断面図)であり、図2は、当該外壁版の目地構造1を建物100の外側から見た正面図である。 FIG. 1 is a vertical sectional view (longitudinal sectional view) showing an exterior wall slab joint structure 1 in a building 100, and FIG. be.

ここで、一例としての建物100の全体構成について説明する。建物100は、例えば、鉄骨造の骨組みを有する2階建ての住宅とすることができる。また、建物100は、地盤に固定された基礎構造体と、当該基礎構造体上に固定される上部構造体と、で構成される。 Here, the overall configuration of the building 100 will be described as an example. Building 100 can be, for example, a two-story house with a steel frame. Also, the building 100 is composed of a foundation structure fixed to the ground and an upper structure fixed on the foundation structure.

基礎構造体は、上部構造体の下方に位置し、その骨組みを支持するものであり、例えば、鉄筋コンクリート造の断面T字状の布基礎とすることができる。上部構造体は、複数の柱と、柱間に架設された複数の梁4とで構成される骨組み(躯体)と、この躯体の外周側に配置される外壁2と、躯体を構成する梁4上に配置される各階の床及び屋根と、を備える。 The foundation structure is positioned below the upper structure and supports the framework thereof. The upper structure includes a framework (framework) composed of a plurality of columns and a plurality of beams 4 installed between the pillars, an outer wall 2 arranged on the outer peripheral side of the frame, and beams 4 constituting the frame. floors and roofs of each floor arranged above.

建物100は、建物100の外周を取り囲む外壁2(外周壁)を備え、外壁2は、複数のパネル状の外壁版3が連接して配置されることにより構成される。また、各外壁版3は、躯体に対してロッキング構法によって取り付けられている。つまり、各外壁版3は、層間変位等に伴い、躯体に対して左右に揺動することができるように構成されている。 The building 100 includes an outer wall 2 (peripheral wall) that surrounds the outer periphery of the building 100, and the outer wall 2 is configured by connecting a plurality of panel-like outer wall panels 3 to each other. Further, each outer wall plate 3 is attached to the building frame by a locking construction method. In other words, each outer wall slab 3 is configured to be able to swing left and right with respect to the building frame along with inter-layer displacement or the like.

ここで、外壁版3の具体例としては、例えば、軽量気泡コンクリート(以下、「ALC」と記載する。「ALC」とは「autoclaved light weight concrete」の略である。)のパネル、PCコンクリートパネル、及び押出成型セメント板などを用いることができるが、ロッキング構法により躯体に取付け可能なものであれば、外壁版3の材質、形状等の具体的な構成は特に限定されない。この外壁版3を、躯体を構成する構造部材としての梁4、柱等の外周側に連接することにより、外皮層としての外壁2を形成することができる。なお、上下に配置された外壁版3間の横目地部11、左右に隣接する外壁版3間の縦目地部12にはそれぞれ、シーリング13、14が施される(図2参照)。 Specific examples of the outer wall slab 3 include panels of lightweight aerated concrete (hereinafter referred to as "ALC", "ALC" being an abbreviation for "autoclaved light weight concrete"), and PC concrete panels. , and extruded cement plates, etc. can be used, but the specific configuration such as the material and shape of the outer wall slab 3 is not particularly limited as long as it can be attached to the frame by the locking construction method. By connecting this outer wall slab 3 to the outer peripheral side of beams 4, columns, etc., which are structural members constituting the building frame, the outer wall 2 as an outer skin layer can be formed. Sealings 13 and 14 are respectively applied to the horizontal joints 11 between the outer wall slabs 3 arranged vertically and the vertical joints 12 between the laterally adjacent outer wall slabs 3 (see FIG. 2).

なお、本例では、左右に隣接する外壁版3間の隙間(縦目地部12の目地底に形成される外壁版3間の隙間)が1mmであり、また、上下に配置された外壁版3間の隙間(横目地部11の目地底に形成される外壁版3間の隙間)が15mmであるが、それぞれの隙間の大きさは適宜変更可能である。また、本例において縦目地部12の目地幅は17mmであり、横目地部11の目地幅は20mmである。なお、「目地幅」とは、目地底の幅ではなく、所謂「シーリング幅」、すなわち、各目地部11、12においてシーリング13、14を施す範囲の最大幅を意味する。 In this example, the gap between the laterally adjacent outer wall slabs 3 (the gap between the outer wall slabs 3 formed at the joint bottom of the vertical joint portion 12) is 1 mm. The gap between them (the gap between the outer wall slabs 3 formed at the joint bottom of the horizontal joint portion 11) is 15 mm, but the size of each gap can be changed as appropriate. In this example, the joint width of the vertical joint portion 12 is 17 mm, and the joint width of the horizontal joint portion 11 is 20 mm. The "joint width" does not mean the width of the bottom of the joint, but the so-called "sealing width", that is, the maximum width of the range where the sealing 13, 14 is applied to the joints 11, 12.

図1に示すように、建物100は、外壁版3を支持し、躯体を構成する構造部材としての梁4と、足場を躯体に接続するためのアンカー部材を接続可能な固定部材5とを備える。 As shown in FIG. 1, a building 100 includes beams 4 as structural members that support an outer wall slab 3 and constitute a building frame, and fixing members 5 connectable with anchor members for connecting scaffolding to the building frame. .

梁4は、建物100の外周を取り囲む外壁2に沿って配置され、水平方向に延在するものであり、複数の柱によって支持される。本例の梁4は、ウェブ4aと、当該ウェブ4aの上下端にそれぞれ連なる上側フランジ4b及び下側フランジ4cとを有するH形鋼で構成されている。なお、梁4の形状及び材質は適宜変更可能である。 The beams 4 are arranged along the outer wall 2 surrounding the outer periphery of the building 100, extend horizontally, and are supported by a plurality of pillars. The beam 4 of the present example is made of H-shaped steel having a web 4a and an upper flange 4b and a lower flange 4c respectively connected to the upper and lower ends of the web 4a. Note that the shape and material of the beam 4 can be changed as appropriate.

梁4の上側フランジ4b及び下側フランジ4cには、ボルト7等を通すための複数の貫通孔が形成されている。上側フランジ4bの上面には、支持部材6が、ボルト7及びナット8等の締結部材により固定されている。 The upper flange 4b and the lower flange 4c of the beam 4 are formed with a plurality of through holes for passing the bolts 7 and the like. A support member 6 is fixed to the upper surface of the upper flange 4b by fastening members such as bolts 7 and nuts 8 .

本例の支持部材6は、断面がT字状となるように溶接された板状の鋼材からなる長尺部材であり、梁4の延在方向に沿って配置される。また、本例の支持部材6は、外壁版3の横幅(水平方向の長さ)全体を下方から支持するように延在している。なお、支持部材6は、必ずしも外壁版3の横幅全体を支持する長尺部材である必要はなく、外壁版3の横幅よりも長さの短い複数の支持部材を用いる構成としてもよい。その場合、例えば1枚の外壁版3に対して、複数の支持部材を、互いに間隔をあけて配置して、当該外壁版3を支持する構成とすることができる。 The support member 6 of this example is a long member made of a plate-shaped steel material welded to have a T-shaped cross section, and is arranged along the extending direction of the beam 4 . Further, the support member 6 of this example extends so as to support the entire lateral width (horizontal length) of the outer wall slab 3 from below. The support member 6 does not necessarily have to be a long member that supports the entire lateral width of the exterior wall slab 3, and may be configured using a plurality of support members shorter in length than the lateral width of the exterior wall slab 3. In this case, for example, a plurality of support members may be arranged with a gap between each other to support the outer wall slab 3 .

本例の支持部材6は、図1、2に示すように、水平方向に延在する水平板部6aと、水平板部6aの上面から垂直に立設する鉛直板部6bとを有する。水平板部6aにおける鉛直板部6bよりも屋内側の部分は、上側フランジ4bの上面に載置され、当該上側フランジ4bに締結固定される。また、水平板部6aにおける鉛直板部6bよりも屋外側の部分は、外壁版3の下面に当接して外壁版3を下方から支持する。また、鉛直板部6bは、外壁版3の屋内側の面にあてがわれ、支持部材6に対して外壁版3がロッキング(揺動)可能な状態で、ボルト等の締結部材を用いて締結される。すなわち、外壁版3は、支持部材6に対して外壁版3の厚さ方向に移動しないように構成される。 As shown in FIGS. 1 and 2, the support member 6 of this example has a horizontal plate portion 6a extending in the horizontal direction and a vertical plate portion 6b vertically erected from the upper surface of the horizontal plate portion 6a. A portion of the horizontal plate portion 6a on the indoor side of the vertical plate portion 6b is placed on the upper surface of the upper flange 4b and fastened and fixed to the upper flange 4b. A portion of the horizontal plate portion 6a on the outdoor side of the vertical plate portion 6b is in contact with the lower surface of the outer wall slab 3 to support the outer wall slab 3 from below. The vertical plate portion 6b is applied to the indoor side surface of the exterior wall slab 3, and is fastened using fastening members such as bolts in a state in which the exterior wall slab 3 can be rocked (oscillated) with respect to the support member 6. be done. That is, the outer wall slab 3 is configured so as not to move in the thickness direction of the outer wall slab 3 with respect to the support member 6 .

また、梁4には、固定部材5がボルト7及びナット8等の締結部材により固定されている。ここで、本例の固定部材5は、図3、4にも示すように、梁4に締結固定される板状の固定部5aと、内周面に雌ねじが設けられた円筒状の接続部5bとを有する。固定部5aには、ボルト7等を通すための貫通孔5cが2箇所に形成されている。また、固定部5aには、接続部5bを所定の高さに配置するための屈曲部5d、5eが形成されている。当該屈曲部5d、5eで高さを調整することによって、固定部5aを躯体(本例では梁4の上側フランジ4bの下面)に固定した状態で、接続部5bが外壁版3の横目地部11の所定の高さに配置される。なお、固定部材5は、金属製の部材(金物)とすることができるが、材質は特に限定されず、適度な剛性を有するものであれば樹脂製等でもよい。 A fixing member 5 is fixed to the beam 4 by fastening members such as bolts 7 and nuts 8 . Here, as shown in FIGS. 3 and 4, the fixing member 5 of this example includes a plate-like fixing portion 5a fastened and fixed to the beam 4, and a cylindrical connecting portion provided with a female screw on the inner peripheral surface. 5b. Two through holes 5c are formed in the fixed portion 5a for passing the bolts 7 and the like. In addition, bent portions 5d and 5e are formed in the fixing portion 5a for arranging the connecting portion 5b at a predetermined height. By adjusting the height of the bent portions 5d and 5e, the connection portion 5b is positioned at the horizontal joint portion of the outer wall slab 3 while the fixed portion 5a is fixed to the frame (in this example, the lower surface of the upper flange 4b of the beam 4). It is arranged at 11 predetermined heights. The fixing member 5 can be made of metal (hardware), but the material is not particularly limited, and resin or the like may be used as long as it has appropriate rigidity.

接続部5bは、足場を躯体に接続するためのアンカー部材を接続可能な構成であり、本例の場合、当該アンカー部材は、接続部5bの雌ねじに螺合する雄ねじを備える。なお、接続部5b側に雄ねじを設け、アンカー部材側に雌ねじを設けてもよい。また、固定部材5とアンカー部材との接続は、雄ねじと雌ねじとのねじ結合による接続方法に限らず、他の接続方法を用いた構成でもよい。また、固定部材5の形状は適宜変更可能であり、例えば、屈曲部5d、5eを設けずに固定部5a全体を平坦な板状としてもよいし、固定部5aに対する接続部5bの位置、角度等を変更することも可能である。 The connecting portion 5b is configured to be connectable with an anchor member for connecting the scaffolding to the building frame, and in the case of this example, the anchor member has a male thread that is screwed into the female thread of the connecting portion 5b. A male thread may be provided on the connecting portion 5b side, and a female thread may be provided on the anchor member side. Moreover, the connection between the fixing member 5 and the anchor member is not limited to the connection method by screwing the male screw and the female screw, but may be configured using other connection methods. Further, the shape of the fixing member 5 can be changed as appropriate. For example, the fixing portion 5a as a whole may be formed into a flat plate shape without providing the bending portions 5d and 5e, or the position and angle of the connecting portion 5b with respect to the fixing portion 5a may be changed. etc. can also be changed.

図1に示すように、固定部材5は、外壁2の屋内側に位置する梁4から、上下に配置された外壁版3間の横目地部11の隙間を通って、外壁2の表面まで延在している。すなわち、固定部材5は、上下に配置された外壁版3間の横目地部11に配置され、且つ、外壁2を厚さ方向に貫通しており、接続部5bの先端は、外壁2の表面に露出している。また、本例の固定部材5は、接続部5bの軸心Aが、水平方向に延在し、且つ、平面視で外壁2(外壁版3)に対して垂直に延在するように配置される。また、本例では、固定部材5の下方に位置する外壁版3に、固定部材5を配置するための切欠き部15が形成されている。また、本例の固定部材5は、支持部材6の下方に配置されている。 As shown in FIG. 1, the fixing member 5 extends from the beam 4 positioned on the indoor side of the outer wall 2 to the surface of the outer wall 2 through the gap of the horizontal joint portion 11 between the outer wall slabs 3 arranged vertically. exist. That is, the fixing member 5 is arranged in the horizontal joint portion 11 between the outer wall slabs 3 arranged vertically, and penetrates the outer wall 2 in the thickness direction, and the tip of the connecting portion 5b is located on the surface of the outer wall 2. exposed to Further, the fixing member 5 of this example is arranged so that the axis A of the connecting portion 5b extends in the horizontal direction and extends perpendicularly to the outer wall 2 (outer wall slab 3) in a plan view. be. Further, in this example, a notch portion 15 for arranging the fixing member 5 is formed in the outer wall slab 3 positioned below the fixing member 5 . Further, the fixing member 5 of this example is arranged below the supporting member 6 .

また、図1、2に示すように、外壁版3の表面において、固定部材5の接続部5bの周囲には凹状のシーリングポケット16(座掘り部分)が形成される。シーリングポケット16には、シーリング剤(隙間充填剤)が充填されてシーリング17を形成する。これにより、固定部材5と外壁版3との間の隙間を塞いで外壁2の気密性、防水性を確保することができる。なお、シーリングポケット16は、例えば図2に示すように、正面視で円形とすることができるが、これに限定されず、他の形状としてもよい。 Further, as shown in FIGS. 1 and 2, on the surface of the outer wall slab 3, a recessed sealing pocket 16 (sinking portion) is formed around the connecting portion 5b of the fixing member 5. As shown in FIGS. The sealing pocket 16 is filled with a sealing agent (gap filler) to form a seal 17 . As a result, the gap between the fixing member 5 and the outer wall slab 3 is closed, and the airtightness and waterproofness of the outer wall 2 can be secured. The sealing pocket 16 can have a circular shape when viewed from the front, for example, as shown in FIG. 2, but is not limited to this and may have other shapes.

また、本例では、梁4に支持部材6を固定するボルト7及びナット8を用いて、固定部材5を梁4に固定している。つまり、本例においては、図1に示すボルト7が、支持部材6の水平板部6aと、上側フランジ4bと、固定部材5とをまとめて貫通した状態で締結されている。このように、支持部材6と固定部材5とを、共通の締結部材を用いてまとめて梁4に締結固定することにより、使用する締結部材の数を削減することができる。 Further, in this example, the fixing member 5 is fixed to the beam 4 using bolts 7 and nuts 8 for fixing the support member 6 to the beam 4 . That is, in this example, the bolts 7 shown in FIG. 1 are fastened while passing through the horizontal plate portion 6a of the support member 6, the upper flange 4b, and the fixing member 5 collectively. In this way, the number of fastening members to be used can be reduced by collectively fastening and fixing the supporting member 6 and the fixing member 5 to the beam 4 using a common fastening member.

以上のように、本実施形態にあっては、梁4に固定した固定部材5を、上下に配置された外壁版3間の横目地部11に配置する構成としている。そして、外壁2の表面に露出した固定部材5の接続部5bに対して、足場接続用のアンカー部材を接続することで、足場を躯体(梁4)に接続することができる。このように、本実施形態では、横目地部11に配置した固定部材5を用いて、容易に足場を躯体に接続することができる。 As described above, in this embodiment, the fixing member 5 fixed to the beam 4 is arranged at the horizontal joint portion 11 between the outer wall slabs 3 arranged vertically. By connecting an anchor member for connecting the scaffolding to the connecting portion 5b of the fixing member 5 exposed on the surface of the outer wall 2, the scaffolding can be connected to the frame (beams 4). Thus, in this embodiment, the fixing member 5 arranged at the horizontal joint portion 11 can be used to easily connect the scaffolding to the building frame.

なお、ロッキング構法の外壁2の場合、基本的に、左右に隣接する外壁版3間の(縦目地部12の)隙間よりも上下に配置された外壁版3間の(横目地部11の)隙間の方が大きくなっている。このため、本実施形態のように上下に配置された外壁版3間の横目地部11に固定部材5を配置することで、固定部材5を配置するための、外壁版3に形成する切欠き部15を少なくとも小さくすることができ、場合によっては当該切欠き部15を不要とすることができる。すなわち、固定部材5を配置するための外壁版3の削り量を低減することができる。 In the case of the outer wall 2 of the rocking construction method, basically, the gap between the outer wall slabs 3 (of the horizontal joint 11) arranged above and below the gap (of the vertical joint 12) between the outer wall slabs 3 adjacent to the left and right is The gap is larger. For this reason, by arranging the fixing member 5 in the horizontal joint portion 11 between the outer wall slabs 3 arranged vertically as in the present embodiment, a notch formed in the outer wall slab 3 for arranging the fixing member 5 can be obtained. At least the portion 15 can be made small, and in some cases the notch 15 can be omitted. That is, it is possible to reduce the amount of cutting of the outer wall slab 3 for arranging the fixing member 5 .

また、本実施形態では、縦目地部12の目地幅(シーリング幅)よりも横目地部11の目地幅の方が大きい。したがって、横目地部11に固定部材5を配置することで、シーリングポケット16を形成するための外壁版3の切削量を低減することができる。その結果、施工にかかる手間が低減されるのみならず、外壁版3の切削による外壁2の意匠性の低下も抑制することができる。 Further, in the present embodiment, the joint width of the horizontal joint portion 11 is larger than the joint width (sealing width) of the vertical joint portion 12 . Therefore, by arranging the fixing member 5 in the horizontal joint portion 11, the cutting amount of the outer wall slab 3 for forming the sealing pocket 16 can be reduced. As a result, it is possible not only to reduce the labor required for construction, but also to suppress deterioration in the design of the outer wall 2 due to cutting of the outer wall slab 3 .

また、本実施形態では、固定部材5が外壁2から大きく突出しない構成としているので、施工後に固定部材5を撤去する必要がなく、建物100の補修、メンテナンス等の際に再度、固定部材5をそのまま使用することができる。また、アンカー部材を接続するための接続部5bを雌ねじ構造とすることで、外壁版3に埋め込むように配置することができ、外壁版3の表面からの突出量を低減することができる。さらに、接続部5bを雌ねじ構造としたことで、外壁版3の表面から突出しないようにすることも可能となる。また、接続部5bを雌ねじ構造としたことで、雄ねじ構造とする場合に比べて、シーリングポケット16にシーリング剤を充填する際に、ねじ溝(ねじ山)にシーリング剤が付着し難い。また、接続部5bのねじ穴を着脱可能な蓋等で塞いでおけば、ねじ孔にシーリング剤が入り込むことをより確実に防止することができる。さらに、施工後において、接続部5bのねじ穴を蓋で塞ぐことで、ねじ穴にゴミ等が侵入することも防止することができる。そして、建物100の補修等の際に再度アンカー部材を接続する時には、蓋を接続部5bから取り外して使用すればよい。 Further, in this embodiment, since the fixing member 5 is configured not to protrude greatly from the outer wall 2, there is no need to remove the fixing member 5 after construction, and the fixing member 5 can be reattached when repairing or maintaining the building 100. It can be used as is. In addition, by forming the connecting portion 5b for connecting the anchor member to a female thread structure, it can be arranged so as to be embedded in the outer wall plate 3, and the amount of protrusion from the surface of the outer wall plate 3 can be reduced. Furthermore, by making the connection portion 5b have a female thread structure, it is possible to prevent it from protruding from the surface of the outer wall slab 3. FIG. In addition, since the connection portion 5b has a female thread structure, the sealing agent is less likely to adhere to the thread groove (thread) when the sealing pocket 16 is filled with the sealing agent, compared to the male thread structure. Also, if the threaded hole of the connecting portion 5b is closed with a detachable cover or the like, it is possible to more reliably prevent the sealant from entering the threaded hole. Furthermore, by covering the threaded hole of the connecting portion 5b with a lid after construction, it is possible to prevent dust and the like from entering the threaded hole. When the anchor member is to be reconnected when the building 100 is repaired or the like, the cover can be removed from the connection portion 5b before use.

また、横目地部11に固定部材5を配置する構成としたことにより、縦目地部12の場合と比べて、外壁版3の割り付けに影響が生じ難くなる。すなわち、横目地部11に固定部材5を配置する構成としたことで、足場の強度及び安定性を確保する上で定められた所定の設置間隔で固定部材5を容易に配置することができる。 In addition, by arranging the fixing member 5 in the horizontal joint portion 11 , compared with the case of the vertical joint portion 12 , the layout of the outer wall slabs 3 is less likely to be affected. That is, by arranging the fixing members 5 in the horizontal joint portion 11, the fixing members 5 can be easily arranged at a predetermined installation interval determined for ensuring the strength and stability of the scaffolding.

このように、本実施形態によれば、外壁版3がロッキング構法により躯体に取り付けられる建物100において足場を躯体に接続可能とし、また、外壁版3の割り付けに影響が生じ難い構成とした外壁版の目地構造1、及び建物100を提供することができる。 As described above, according to this embodiment, in the building 100 in which the outer wall slabs 3 are attached to the building frame by the rocking construction method, the scaffolding can be connected to the building frame, and the layout of the outer wall slabs 3 is less likely to be affected. The joint structure 1 and the building 100 can be provided.

また、上下に配置された外壁版3間の横目地部11の目地幅、及び、固定部材5の厚み等の条件に応じて、外壁版3には、本例のように、固定部材5を配置するための切欠き部15が形成される場合がある。切欠き部15を設ける場合、固定部材5を上方又は下方の外壁版3に寄せて配置して、固定部材5の上方又は下方に位置する外壁版3の何れか一方のみに、切欠き部15が形成されるようにすることが好ましい。このような構成とすることで、外壁版3を切削等により切り欠く施工手間を軽減することができる。なお、固定部材5の上方及び下方に位置する外壁版3の両方に切欠き部15を設けてもよい。 In addition, depending on conditions such as the joint width of the horizontal joint portion 11 between the outer wall panels 3 arranged vertically and the thickness of the fixing member 5, the fixing member 5 is attached to the outer wall panel 3 as in this example. A notch 15 for placement may be formed. When the cutout portion 15 is provided, the fixing member 5 is arranged closer to the upper or lower outer wall slab 3, and the cutout portion 15 is formed in only one of the outer wall slabs 3 positioned above or below the fixing member 5. is preferably formed. With such a configuration, it is possible to reduce labor for notching the outer wall slab 3 by cutting or the like. Note that the cutout portions 15 may be provided in both the outer wall slabs 3 positioned above and below the fixing member 5 .

また、本例の固定部材5は、図1に示すように、横目地部11の目地幅の中心となる線Cよりも下側に偏心して配置されている。すなわち、本例の固定部材5は、固定部材5の接続部5bの軸心Aが、横目地部11の目地幅の中心線Cよりも下方に位置するように配置されている。このような構成とすることにより、シーリングポケット16を形成するための、固定部材5の上方の外壁版3の切欠き量が、固定部材5の下方の外壁版3の切欠き量よりも小さくなる。その結果、建物100の下方からシーリングポケット16を見上げた際に目立ち難くなり、シーリングポケット16による外観の意匠性の低下を抑制することができる。すなわち、固定部材5の上方に設けたシーリングポケット16は、下方から見上げた際に影となるため目立ち易く、外観の意匠性を損ない易いところ、固定部材5の上方側のシーリングポケット16を、下方側のシーリングポケット16よりも小さくすることで目立ち難くして、見栄えの悪化を防止することができる。 Further, the fixing member 5 of this example is arranged eccentrically below the line C which is the center of the joint width of the horizontal joint portion 11, as shown in FIG. That is, the fixing member 5 of this example is arranged so that the axial center A of the connection portion 5b of the fixing member 5 is located below the center line C of the joint width of the horizontal joint portion 11 . With such a configuration, the cutout amount of the outer wall slab 3 above the fixing member 5 for forming the sealing pocket 16 is smaller than the cutout amount of the outer wall slab 3 below the fixing member 5. . As a result, when the ceiling pocket 16 is viewed from below the building 100, the ceiling pocket 16 is less noticeable, and deterioration of the appearance design due to the ceiling pocket 16 can be suppressed. That is, the sealing pocket 16 provided above the fixing member 5 is easily conspicuous because it becomes a shadow when viewed from below, and tends to impair the design of the appearance. By making it smaller than the sealing pocket 16 on the side, it becomes inconspicuous and can prevent the appearance from deteriorating.

ここで、固定部材5は、横目地部11に配置されていればその位置は特に限定されるものではないが、図2に実線で示すように、外壁版3の横幅の中央部に配置されることが好ましい。このような構成により、ロッキング時のシーリング13、17への負荷を低減することができる。すなわち、ロッキング時の変位量は、外壁版3の横幅の両側端部に比べて中央部の方が小さいため、当該中央部に固定部材5を配置することで、ロッキング時における固定部材5と外壁版3との相対的な位置ずれを小さくすることができる。その結果、固定部材5と上下の外壁版3に挟まれた位置にあるシーリング13、17への負荷を低減することができる。 Here, the position of the fixing member 5 is not particularly limited as long as it is arranged in the horizontal joint portion 11, but as shown by the solid line in FIG. preferably. With such a configuration, the load on the sealings 13, 17 during locking can be reduced. That is, since the amount of displacement during rocking is smaller at the central portion than at both side ends of the lateral width of the outer wall slab 3, by disposing the fixing member 5 at the central portion, the fixing member 5 and the outer wall during locking A relative positional deviation with the plate 3 can be reduced. As a result, the load on the sealings 13 and 17 located between the fixing member 5 and the upper and lower outer wall panels 3 can be reduced.

なお、固定部材5は、図2に二点鎖線で示すように、横目地部11と縦目地部12の交点部分に配置してもよい。この場合、切欠き部15及びシーリングポケット16を形成するための切削量をさらに低減することができ、切削の施工手間を軽減することができる。 In addition, the fixing member 5 may be arranged at the intersection of the horizontal joint portion 11 and the vertical joint portion 12 as indicated by the two-dot chain line in FIG. 2 . In this case, the cutting amount for forming the cutout portion 15 and the sealing pocket 16 can be further reduced, and the labor for cutting can be reduced.

また、本実施形態では、固定部材5を、梁4の上側フランジ4bの下面側に固定している。上側フランジ4bの上面には、本例のような支持部材6に限らず、他の金物類、床材、及び上階の柱等が配置されることがあるため、上側フランジ4bの下面側に固定部材5を配置することで、固定部材5の取付け位置が制限され難くなる。その結果、足場の強度を確保する上で適切な間隔で固定部材5を設置することができるので、足場の強度及び安定性を確保し易くなる。 Further, in this embodiment, the fixing member 5 is fixed to the lower surface side of the upper flange 4b of the beam 4. As shown in FIG. On the upper surface of the upper flange 4b, not only the support member 6 as in this example, but also other hardware, floor materials, pillars of the upper floor, etc. may be arranged. By arranging the fixing member 5, the mounting position of the fixing member 5 is less likely to be restricted. As a result, the fixing members 5 can be installed at appropriate intervals to ensure the strength of the scaffolding, making it easier to ensure the strength and stability of the scaffolding.

本発明は、上述した実施形態の構成に限定されるものではなく、特許請求の範囲で記載された内容を逸脱しない範囲で、様々な構成により実現することが可能である。例えば、上記実施形態では、梁4の上側フランジ4bの下面側に固定部材5を締結固定しているが、これに限られず、例えば、上側フランジ4bの上面側に固定部材5を固定してもよい。また、固定部材5を、ウェブ4aまたは下側フランジ4cに固定してもよいし、梁4以外の躯体(例えば柱等)に固定してもよい。また、固定部材5は、躯体に対して溶接により固定してもよい。また、固定部材5は、本例のように躯体に直接固定してもよいし、他の部材を介して間接的に固定してもよい。 The present invention is not limited to the configurations of the above-described embodiments, and can be implemented in various configurations without departing from the scope of the claims. For example, in the above-described embodiment, the fixing member 5 is fastened and fixed to the lower surface side of the upper flange 4b of the beam 4. However, the fixing member 5 may be fixed to the upper surface side of the upper flange 4b. good. Moreover, the fixing member 5 may be fixed to the web 4a or the lower flange 4c, or may be fixed to a skeleton other than the beam 4 (for example, a column or the like). Alternatively, the fixing member 5 may be fixed to the frame by welding. Further, the fixing member 5 may be directly fixed to the frame as in this example, or may be indirectly fixed via another member.

1:外壁版の目地構造
2:外壁
3:外壁版
4:梁(躯体)
4a:ウェブ
4b:上側フランジ
4c:下側フランジ
5:固定部材
5a:固定部
5b:接続部
5c:貫通孔
5d、5e:屈曲部
6:支持部材
6a:水平板部
6b:鉛直板部
7:ボルト(締結部材)
8:ナット(締結部材)
11:横目地部
12:縦目地部
13、14:シーリング
15:切欠き部
16:シーリングポケット
17:シーリング剤
A:固定部材の接続部の軸心
C:目地幅の中心線
100:建物
1: Joint structure of exterior slab 2: Exterior wall 3: Exterior slab 4: Beam (framework)
4a: web 4b: upper flange 4c: lower flange 5: fixing member 5a: fixing part 5b: connecting part 5c: through hole 5d, 5e: bending part 6: supporting member 6a: horizontal plate part 6b: vertical plate part 7: Bolt (fastening member)
8: Nut (fastening member)
11: Horizontal joint part 12: Vertical joint part 13, 14: Sealing 15: Notch 16: Sealing pocket 17: Sealant A: Axis of connecting part of fixing member C: Center line of joint width 100: Building

Claims (8)

外壁を構成する複数の外壁版が躯体に対してロッキング構法によって取り付けられ建物における、外壁版の目地構造であって、
前記外壁版を下方から支持する支持部材と、
足場接続用のアンカー部材を接続可能な固定部材と、を備え、
前記支持部材は、前記躯体を構成する梁のフランジの上面側に固定され、
前記固定部材は、
前記フランジの下面側に固定され、
上下に配置された外壁版間の横目地部に配置されることを特徴とする外壁版の目地構造。
A joint structure of an outer wall plate in a building in which a plurality of outer wall plates constituting the outer wall are attached to the building frame by a rocking construction method,
a support member that supports the outer wall slab from below;
a fixing member capable of connecting an anchor member for connecting a scaffold,
The support member is fixed to the upper surface side of the flange of the beam that constitutes the skeleton,
The fixing member is
fixed to the lower surface side of the flange,
A joint structure of outer wall slabs, characterized by being arranged in a horizontal joint part between outer wall slabs arranged vertically.
前記固定部材の上方又は下方に位置する前記外壁版の何れか一方のみに、該固定部材を配置するための切欠き部が形成されている、請求項1に記載の外壁版の目地構造。 2. The joint structure of the outer wall slab according to claim 1, wherein a notch portion for arranging the fixing member is formed in only one of the outer wall slabs positioned above or below the fixing member. 前記固定部材は、前記横目地部の目地幅の中心よりも下側に偏心して配置される、請求項1または2に記載の外壁版の目地構造。 The joint structure of the outer wall slab according to claim 1 or 2, wherein the fixing member is arranged eccentrically below the center of the joint width of the horizontal joint portion. 前記固定部材は、前記外壁版の横幅の中央部に配置される、請求項1~3の何れか一項に記載の外壁版の目地構造。 The joint structure of the outer wall slab according to any one of claims 1 to 3, wherein the fixing member is arranged in the center of the lateral width of the outer wall slab. 前記固定部材は、前記アンカー部材を接続可能な雌ねじを有する、請求項1~4の何れか一項に記載の外壁版の目地構造。 The joint structure of the outer wall slab according to any one of claims 1 to 4, wherein the fixing member has an internal thread to which the anchor member can be connected. 前記固定部材は、前記梁の上側フランジの下面側に固定される、請求項1~5の何れか一項に記載の外壁版の目地構造。 The joint structure of the outer wall slab according to any one of claims 1 to 5, wherein the fixing member is fixed to the lower surface side of the upper flange of the beam . 前記固定部材は、該固定部材の先端が前記外壁の表面に露出するように配置される、請求項1~6の何れか一項に記載の外壁版の目地構造。 The joint structure of the outer wall slab according to any one of claims 1 to 6, wherein the fixing member is arranged so that the tip of the fixing member is exposed on the surface of the outer wall. 請求項1~7の何れか一項に記載の外壁版の目地構造を備えることを特徴とする建物。 A building comprising the joint structure of the outer wall slab according to any one of claims 1 to 7.
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JP2000027429A (en) 1998-07-14 2000-01-25 Sumitomo Metal Mining Co Ltd Scaffold locking hardware
JP2000110287A (en) 1998-10-09 2000-04-18 Sumitomo Metal Mining Co Ltd Fixture assembly of external wall panel
JP2000328701A (en) 1999-05-19 2000-11-28 Okabe Co Ltd Pc plate installing method and installing structure
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JP2018071108A (en) 2016-10-26 2018-05-10 積水ハウス株式会社 Exterior wall structure

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JPS606052U (en) * 1983-06-27 1985-01-17 株式会社 小野寺商会 Scaffolding joint
JPH0536034Y2 (en) * 1987-03-12 1993-09-13
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JPH1018583A (en) * 1996-07-08 1998-01-20 Misawa Homes Co Ltd Tenporary scaffold structure for building

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JP2000027429A (en) 1998-07-14 2000-01-25 Sumitomo Metal Mining Co Ltd Scaffold locking hardware
JP2000110287A (en) 1998-10-09 2000-04-18 Sumitomo Metal Mining Co Ltd Fixture assembly of external wall panel
JP2000328701A (en) 1999-05-19 2000-11-28 Okabe Co Ltd Pc plate installing method and installing structure
JP2007056594A (en) 2005-08-25 2007-03-08 Daiwa House Ind Co Ltd External wall structure and its construction method
JP2008202213A (en) 2007-02-16 2008-09-04 Sumitomo Kinzoku Kozan Siporex Kk Mounting structure of scaffold connector
JP2018071108A (en) 2016-10-26 2018-05-10 積水ハウス株式会社 Exterior wall structure

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