JP4933847B2 - Manufacturing method for solid foundation corner corner unit rebar - Google Patents

Manufacturing method for solid foundation corner corner unit rebar Download PDF

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JP4933847B2
JP4933847B2 JP2006175769A JP2006175769A JP4933847B2 JP 4933847 B2 JP4933847 B2 JP 4933847B2 JP 2006175769 A JP2006175769 A JP 2006175769A JP 2006175769 A JP2006175769 A JP 2006175769A JP 4933847 B2 JP4933847 B2 JP 4933847B2
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solid foundation
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JP2008002242A (en
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元嗣 小野
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Sumitomo Forestry Co Ltd
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本発明は、べた基礎の出隅コーナー部に設置して用いるべた基礎出隅コーナー部ユニット鉄筋の製造方法、べた基礎出隅コーナー部ユニット鉄筋、及びべた基礎の配筋構造に関する。 TECHNICAL FIELD The present invention relates to a method for manufacturing a solid foundation corner corner unit reinforcing bar , which is installed and used at a corner corner of a solid foundation, a solid foundation corner part unit reinforcing bar , and a bar arrangement structure of a solid foundation.

例えば木造建築物や鉄骨プレハブ建築物等の建物の基礎として、軟弱地盤対策や建物の耐久性の向上を図るために、一般にべた基礎が多く採用されている。べた基礎は、建物の全体又は大部分の荷重を、面状に形成した鉄筋コンクリート製の底盤によって地盤に支持させるものであり、建物の下方の地盤を隙間無く覆って一面に設けられるスラブ部と、建物の外周部分やこれの内側の適宜位置から垂直に立設して設けられる立上り部とからなり、立上り部の上方に土台や柱等を設置して、建物の本体部分が構築されることになる。   For example, as a foundation of a building such as a wooden building or a steel frame prefabricated building, a solid foundation is generally used in order to prevent soft ground and improve the durability of the building. The solid foundation is to support the entire or most of the load of the building on the ground with a bottom made of reinforced concrete formed in a planar shape, covering the ground below the building without gaps, and a slab part provided on one side, It consists of an outer peripheral part of the building and a rising part that is set up vertically from an appropriate position inside the building, and a main part of the building is constructed by installing a base, a pillar, etc. above the rising part Become.

このようなべた基礎は、スラブ部や立上り部に、補強用の鉄筋を所定のピッチで縦横に格子状に配筋した後に、形枠内にコンクリートを打設して形成されることになる。ここで、鉄筋の配筋作業を容易にするべく、縦横に延びる鉄筋を格子状に配置し、溶接することにより予め形成したシート状溶接金網を用いたり、さらにこのシート状溶接金網を立上り部に沿ってＬ字状に折り曲げて、Ｌ形ユニット鉄筋として用いる技術が開示されている（例えば、特許文献１参照）。   Such a solid foundation is formed by placing reinforcing reinforcing bars in a grid pattern at a predetermined pitch in a slab part or a rising part, and then placing concrete in a form frame. Here, in order to facilitate the bar arrangement work of the reinforcing bars, the reinforcing bars extending vertically and horizontally are arranged in a lattice shape, and a sheet-shaped welded wire mesh formed in advance by welding is used, or this sheet-shaped welded wire mesh is further used as a rising portion. A technique is disclosed that is bent into an L-shape along the L-shaped unit reinforcing bar (see, for example, Patent Document 1).

また、立上り部用のＬ形ユニット鉄筋と、スラブ部用のＬ形ユニット鉄筋とを分けて製造したり、立上り部のみにＬ形ユニット鉄筋を配置し、スラブ部は現場加工によって対応する方法なども採用されている。
特開平１２−７３３７９号公報 Moreover, the L-shaped unit rebar for the rising part and the L-shaped unit rebar for the slab part are manufactured separately, or the L-shaped unit reinforcing bar is arranged only at the rising part, and the slab part is handled by on-site processing. Is also adopted.
JP-A-12-73379

一方、べた基礎には、立上り部が垂直に折れ曲がった平面形状で連続する出隅コーナー部が複数箇所に設けられるのが一般的であり、このような出隅コーナー部では、折れ曲がった立上り部による一対の面と、これらの間のスラブ部による面とが、互いに垂直な三方向に交わる角部を形成するため、鉄筋が錯綜して、配筋作業に多くの手間を要していた。すなわち、出隅コーナー部では、予めユニット状に形成した従来のシート状溶接金網や立上り部用のＬ形ユニット鉄筋、あるいはスラブ部用のＬ形ユニット鉄筋等を用いても、三面が垂直に交差する出隅コーナー部においてはこれらのユニット鉄筋が分断されるので、分断された鉄筋の連続性を保持するために、例えばＬ字形状を有する継ぎ鉄筋等を多数用いて相当のラップ長を確保する必要を生じ、鉄筋が何重にも重なることになって鉄筋量が増加すると共に、配筋作業が複雑になり、また所望のかぶり厚さを確保することが困難になる。 On the other hand, it is common for a solid foundation to be provided with a plurality of protruding corner portions that are continuous in a planar shape where the rising portion is bent vertically. In such a protruding corner portion, a bent rising portion is caused by a bent rising portion. Since the pair of surfaces and the surface formed by the slab portion between them form a corner portion intersecting in three directions perpendicular to each other, the reinforcing bars are complicated and a lot of labor is required for the bar arrangement work. That is, at the corners of the corners, even if the conventional sheet-shaped welded wire mesh formed in advance, the L-shaped unit rebar for the rising part, or the L-shaped unit rebar for the slab part are used, the three surfaces intersect vertically. in external corner corners that since these units rebar is divided, in order to maintain the continuity of the shed rebar to ensure wrap length equivalent using a large number of splicing rebar or the like having, for example, L-shaped The need arises, and the amount of reinforcing bars increases due to the overlapping of the reinforcing bars, and the bar arrangement work becomes complicated, and it becomes difficult to secure a desired cover thickness.

本発明は、このような従来の課題に着目してなされたものであり、鉄筋を錯綜させることなくシンプルな形状で出隅コーナー部における鉄筋の連続性を確保することができ、且つ出隅コーナー部での配筋作業を容易に行えるようにすることのできるべた基礎出隅コーナー部ユニット鉄筋を、容易に製作することができるべた基礎出隅コーナー部ユニット鉄筋の製造方法、該製造方法によって製造されたべた基礎出隅コーナー部ユニット鉄筋、及び該べた基礎出隅コーナー部ユニット鉄筋を用いたべた基礎の配筋構造を提供することを目的とする。 The present invention has been made paying attention to such a conventional problem, and can ensure the continuity of the reinforcing bars in the protruding corner portion with a simple shape without complicating the reinforcing bars , and the protruding corner corner. A solid foundation corner unit steel bar that can easily perform bar arrangement work at the base, a manufacturing method for a solid foundation corner unit steel bar that can be easily manufactured, and the manufacturing method It is an object of the present invention to provide a solid foundation corner portion unit reinforcing bar and a solid bar arrangement structure using the solid foundation corner portion unit reinforcing bar.

本発明は、べた基礎の出隅コーナー部に設置される、前記べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋を含み、該Ｌ字縦筋の垂直部を複数本のＬ字横筋に格子状に連結すると共に、該Ｌ字縦筋の水平部を格子状に交差配置した状態で組み立てられて、互いに垂直な三方向の配筋面を有するべた基礎出隅コーナー部ユニット鉄筋の製造方法であって、折曲げ前の直線状の前記Ｌ字縦筋を所定のピッチで複数平行に配置すると共に、これの前記垂直部と交差するようにして、折曲げ前の直線状の前記Ｌ字横筋を格子状に配置し、各交点部分を接合することにより、折曲げ加工を施す前の面状ユニットを形成し、該面状ユニットに対して、複数本の前記Ｌ字縦筋をＬ字状に折り曲げて水平部と垂直部を形成する１次折曲げ加工を施した後に、複数本の前記Ｌ字横筋をＬ字状に折り曲げて、該Ｌ字横筋の一方の辺部に連結された前記Ｌ字縦筋の水平部と、他方の辺部に連結された前記Ｌ字縦筋の水平部とを格子状に交差させる２次折曲げ加工を施し、水平部の各交点部分を接合することにより、前記互いに垂直な三方向の配筋面を有する立体形状を形成するべた基礎出隅コーナー部ユニット鉄筋の製造方法を提供することにより、上記目的を達成したものである。 The present invention, Ru is installed in external corner corner of mat foundation, a plurality of consisting of a vertical portion which is reinforcement along the horizontal portion and the rising portion to be reinforcement along the slab portion of the solid foundation L The vertical portion of the L-shaped vertical stripe is connected to a plurality of L-shaped horizontal stripes in a grid pattern, and the horizontal portion of the L-shaped vertical stripe is assembled in a state of crossing in a grid pattern, A method of manufacturing a solid foundation corner portion unit reinforcing bar having a three-way reinforcing surface perpendicular to each other , wherein a plurality of straight L-shaped vertical bars before bending are arranged in parallel at a predetermined pitch, By arranging the L-shaped horizontal streaks in a straight line before bending so as to intersect with the vertical portion of this, and connecting each intersection portion, a planar unit before bending is performed. Form and fold a plurality of the L-shaped vertical streaks into an L-shape with respect to the planar unit After the primary bending process to form the horizontal portion and the vertical portion, a plurality of the L-shaped horizontal stripes are bent into an L shape, and the L-shape connected to one side portion of the L-shaped horizontal stripes By applying a secondary bending process that intersects the horizontal portion of the vertical stripe and the horizontal portion of the L-shaped vertical stripe connected to the other side portion in a lattice shape, and joining each intersection portion of the horizontal portion, The object described above is achieved by providing a method for manufacturing a solid foundation corner portion unit reinforcing bar that forms a three-dimensional shape having three vertical bars.

本発明のべた基礎出隅コーナー部ユニット鉄筋の製造方法によれば、好ましくは、前記１次折曲げ加工において、前記Ｌ字横筋の一方の辺部に連結されたＬ字縦筋の折曲げ位置と、他方の辺部に連結されたＬ字縦筋の折曲げ位置とが、前記Ｌ字縦筋の太さ相当分、高さ方向に位置ずれした状態で折り曲げられるようにすることができる。 According to the method for manufacturing a solid foundation corner portion unit reinforcing bar of the present invention, preferably, in the primary bending process, the bending position of the L-shaped vertical bar connected to one side of the L-shaped horizontal bar. And the bending position of the L-shaped vertical stripe connected to the other side portion can be bent in a state of being displaced in the height direction by an amount corresponding to the thickness of the L-shaped vertical stripe .

また、本発明は、上記べた基礎出隅コーナー部ユニット鉄筋の製造方法によって製造されたべた基礎出隅コーナー部ユニット鉄筋であって、べた基礎の出隅コーナー部に設置され、前記べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋を含み、該Ｌ字縦筋の垂直部を複数本のＬ字横筋に格子状に連結すると共に、該Ｌ字縦筋の水平部を格子状に交差配置した状態で組み立てられて、互いに垂直な三方向の配筋面を有するべた基礎出隅コーナー部ユニット鉄筋を提供することにより、上記目的を達成したものである。 The present invention also relates to a solid foundation corner section unit reinforcing bar manufactured by the above-described method of manufacturing a solid foundation corner section unit reinforcing bar, which is installed at a corner corner section of a solid foundation, and is a slab of the solid foundation. Including a plurality of L-shaped vertical bars composed of a horizontal portion arranged along the portion and a vertical portion arranged along the rising portion, wherein the vertical portion of the L-shaped vertical stripe is a plurality of L-shaped horizontal stripes. Are connected in a grid pattern and assembled with the horizontal part of the L-shaped vertical bars crossed in a grid pattern to provide a solid foundation corner corner unit rebar with three vertical bars This achieves the above object .

さらに、本発明は、上記べた基礎出隅コーナー部ユニット鉄筋の製造方法によって製造されたべた基礎出隅コーナー部ユニット鉄筋を用いたべた基礎の配筋構造であって、前記べた基礎の出隅コーナー部に前記べた基礎出隅コーナー部ユニット鉄筋が配置され、前記べた基礎の出隅コーナー部を挟んだ両辺部分に、べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋をスラブ部横筋及び立上り部横筋を用いて連結してなるＬ形ユニット鉄筋が、前記立上り部横筋を前記Ｌ字横筋に接続すると共に、前記スラブ部横筋を前記水平部に接続して、前記べた基礎出隅コーナー部ユニット鉄筋の両側に配置されるべた基礎の配筋構造を提供することにより、上記目的を達成したものである。 Further, the present invention is a solid bar arrangement structure using a solid foundation corner portion unit reinforcing bar manufactured by the above-described solid foundation corner portion unit reinforcing bar manufacturing method, The solid foundation corner section unit rebar is arranged in the section, and along the horizontal part and the rising part that are arranged along the slab part of the solid foundation on both sides sandwiching the corner part of the solid foundation. An L-shaped unit reinforcing bar formed by connecting a plurality of L-shaped vertical bars composed of a vertical part to be arranged using a slab horizontal bar and a rising horizontal bar, and connecting the rising horizontal bar to the L-shaped horizontal bar. The above object is achieved by providing a solid bar arrangement structure that is arranged on both sides of the solid foundation corner portion unit reinforcing bar by connecting the horizontal bars of the slab part to the horizontal part.

本発明のべた基礎出隅コーナー部ユニット鉄筋の製造方法によれば、べた基礎出隅コーナー部ユニット鉄筋を容易に製作することができると共に、鉄筋を錯綜させることなくシンプルな形状で出隅コーナー部における鉄筋の連続性を確保することができ、且つ出隅コーナー部での配筋作業を容易に行えるようにすることができるべた基礎出隅コーナー部ユニット鉄筋を、容易に製造することができる。 According to the method for manufacturing a solid foundation corner portion unit reinforcing bar of the present invention, a solid foundation corner portion unit reinforcing bar can be easily manufactured, and the corner portion of the corner has a simple shape without complicated rebars. Therefore, it is possible to easily manufacture a solid foundation corner portion unit reinforcing bar which can secure the continuity of the reinforcing bars and can easily perform the bar arrangement work at the corner corner portion .

図１に示す本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋１０（以下「コーナー部ユニット鉄筋」とする。）は、例えば図２に示すように、木造住宅建築物等の建物１３の基礎を構成するべた基礎１１の出隅コーナー部１２（図４参照）に設置して用いられ、当該出隅コーナー部１２における配筋作業を簡易且つ容易に行えるようにするものである。   A solid foundation corner unit reinforcing bar 10 (hereinafter referred to as “corner unit reinforcing bar”) according to a preferred embodiment of the present invention shown in FIG. It is installed and used at the corner corner portion 12 (see FIG. 4) of the solid foundation 11 constituting the foundation of the building 13 so that the bar arrangement work at the corner corner portion 12 can be performed easily and easily. .

ここで、べた基礎１１は、基礎砕石１４等を介在させて建物１３の下方の地盤１７の全体を覆って面状に形成され、その大きな接地面積によって建物１３の荷重を安定した状態で地盤１７に支持させることのできる鉄筋コンクリート製の基礎である。またべた基礎１１は、図３及び図４にも示すように、建物１３の下方の地盤１７を隙間無く覆って一面に設けられるスラブ部１５と、建物１３の外周部分やこれの内側の適宜位置から垂直に立設して設けられる立上り部１６とからなり、立上り部１６の上方に土台１３ａや柱１３ｂ等を設置して、建物１３の本体部分が構築されることになる（図２参照）。さらに、べた基礎１１には、立上り部１６が垂直に折れ曲がった平面形状で連続する出隅コーナー部１２が複数箇所に設けられるのが一般的であり（図４参照）、本実施形態のコーナー部ユニット鉄筋１０は、このようなべた基礎１１の出隅コーナー部１２に配筋設置されることになる。   Here, the solid foundation 11 is formed in a planar shape so as to cover the entire ground 17 below the building 13 with the ground crushed stone 14 or the like interposed therebetween, and the ground 17 in a state where the load of the building 13 is stabilized by the large ground contact area. It is a foundation made of reinforced concrete that can be supported. 3 and 4, the solid foundation 11 covers the ground 17 below the building 13 without any gap and is provided on one surface, and the outer peripheral portion of the building 13 and appropriate positions inside the building 13 It is composed of a rising portion 16 that is vertically provided from the base, and a base 13a, a pillar 13b, and the like are installed above the rising portion 16 to construct a main body portion of the building 13 (see FIG. 2). . Further, the solid foundation 11 is generally provided with a plurality of protruding corner portions 12 which are continuous in a planar shape in which the rising portion 16 is bent vertically (see FIG. 4). The unit reinforcing bars 10 are arranged in the protruding corner portion 12 of the solid foundation 11 as described above.

そして、図１に示す本実施形態のコーナー部ユニット鉄筋１０は、べた基礎１１の出隅コーナー部１２に設置される、好ましくは工場等において予め製作されたユニット鉄筋であって、べた基礎１１のスラブ部１５に沿って配筋される水平部１８ａと立上り部１６に沿って配筋される垂直部１８ｂとからなる複数本のＬ字縦筋１８を含み、該Ｌ字縦筋１８の垂直部１８ｂを複数本のＬ字横筋１９に格子状に連結すると共に、該Ｌ字縦筋１８の水平部１８ａを格子状に交差配置した状態で組み立てられて、互いに垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有するように形成される。   The corner unit rebar 10 of the present embodiment shown in FIG. 1 is a unit rebar that is installed in a corner corner 12 of the solid foundation 11 and is preferably manufactured in advance in a factory or the like. A plurality of L-shaped vertical bars 18 each including a horizontal part 18 a arranged along the slab part 15 and a vertical part 18 b arranged along the rising part 16, and the vertical part of the L-shaped vertical line 18 18b is connected to a plurality of L-shaped horizontal stripes 19 in a grid pattern, and the horizontal portions 18a of the L-shaped vertical bars 18 are assembled so as to cross each other in a grid pattern. , 20b, 20c.

また、本実施形態のコーナー部ユニット鉄筋１０は、図５〜図７に示すように、好ましくは折曲げ前の直線状のＬ字縦筋１８を所定のピッチで複数平行に配置すると共に、これの垂直部１８ｂと交差するようにして、折曲げ前の直線状のＬ字横筋１９を格子状に配置し、各交点部分２１を接合することにより、折曲げ加工を施す前の面状ユニット２２を形成する（図５参照）。そして、この面状ユニット２２に対して、複数本のＬ字縦筋１８を第１折曲げ線Ｘ−Ｘに沿ってＬ字状に折り曲げて水平部１８ａと垂直部１８ｂを形成する１次折曲げ加工を施した後に（図６参照）、複数本のＬ字横筋１９を第２折曲げ線Ｙ−Ｙに沿ってＬ字状に折り曲げて、該Ｌ字横筋１９の一方の辺部１９ａに連結されたＬ字縦筋１８の水平部１８ａと、他方の辺部１９ｂに連結されたＬ字縦筋１８の水平部１８ａとを格子状に交差させる２次折曲げ加工を施し（図７参照）、交差した水平部１８ａの各交点部分２３を接合することにより、本実施形態のコーナー部ユニット鉄筋１０が、互いに垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有する立体形状に形成されるようになっている（図１参照）。   In addition, as shown in FIGS. 5 to 7, the corner unit rebar 10 of the present embodiment is preferably arranged with a plurality of straight L-shaped vertical bars 18 in parallel at a predetermined pitch before being bent. The linear L-shaped horizontal streaks 19 before bending are arranged in a lattice shape so as to intersect with the vertical portion 18b of the sheet, and each intersection portion 21 is joined to each other to thereby join the planar unit 22 before being bent. (See FIG. 5). Then, a plurality of L-shaped vertical bars 18 are bent in an L shape along the first fold line XX to form a horizontal portion 18a and a vertical portion 18b with respect to the planar unit 22. After the bending process (see FIG. 6), a plurality of L-shaped horizontal stripes 19 are bent into an L shape along the second fold line YY, and one side portion 19a of the L-shaped horizontal stripe 19 is formed. A secondary bending process is performed in which the horizontal portion 18a of the connected L-shaped vertical bars 18 and the horizontal portion 18a of the L-shaped vertical bars 18 connected to the other side portion 19b intersect in a grid pattern (see FIG. 7). ), By joining the intersecting point portions 23 of the intersecting horizontal portions 18a, the corner unit rebar 10 of the present embodiment is formed into a three-dimensional shape having three bar arrangement surfaces 20a, 20b, 20c perpendicular to each other. (See FIG. 1).

本実施形態では、Ｌ字縦筋１８は、例えば直径が９〜１６ｍｍ程度の丸鋼や、呼び径が例えばＤ１０〜Ｄ１６程度の異形鉄筋からなる。Ｌ字縦筋１８は、好ましくは建物のモジュールを考慮して、例えば４４０〜１０００ｍｍ程度の長さの水平部１８ａと、３００〜１０００ｍｍ程度の長さの垂直部１８ｂを備えることができるように、例えば７４０〜２０００ｍｍ程度の長さに形成され、例えば２００ｍｍ程度の中心間ピッチで複数本（本実施形態では９本）平行に配設される。なお、本実施形態では、９本のＬ字縦筋１８のうち、第２折曲げ線Ｙ−Ｙに沿って配設される中央のＬ字縦筋１８’は、その水平部１８ａ’が配筋面２０ｃにおいて格子状に交差する鉄筋とはならないため、当該水平部１８ａ’は、スラブ部１５での定着長を確保するのに十分な、例えば２００ｍｍ程度の長さで延設して設けられる。また、この中央のＬ字縦筋１８’は、第２折曲げ線Ｙ−Ｙに沿って折曲げの略中心に配置されることにより、後述する鉄筋折曲げ加工機の鉄筋を挟み込む治具と緩衝する場合があることから、この中央のＬ字縦筋１８’を省略した状態でコーナー部ユニット鉄筋１０を予め形成し、当該Ｌ字縦筋１８’は、基礎工事の形成後や鉄筋組において後付けして取り付けることもできる。   In the present embodiment, the L-shaped vertical bars 18 are made of, for example, round steel having a diameter of about 9 to 16 mm, or deformed bars having a nominal diameter of, for example, about D10 to D16. The L-shaped vertical stripe 18 preferably includes a horizontal portion 18a having a length of about 440 to 1000 mm and a vertical portion 18b having a length of about 300 to 1000 mm, for example, in consideration of a module of a building. For example, it is formed in a length of about 740 to 2000 mm, and a plurality (for example, 9 in this embodiment) are arranged in parallel at a center-to-center pitch of about 200 mm, for example. In the present embodiment, among the nine L-shaped vertical bars 18, the central L-shaped vertical line 18 'disposed along the second fold line YY has its horizontal portion 18a' arranged. Since it does not become a reinforcing bar that crosses in a lattice pattern on the streaks 20c, the horizontal portion 18a ′ is provided to extend to a length of, for example, about 200 mm sufficient to secure the fixing length at the slab portion 15. . In addition, the center L-shaped vertical bar 18 'is arranged at the approximate center of the bending along the second folding line YY, and thereby a jig for sandwiching the reinforcing bar of a reinforcing bar bending machine to be described later. Since there is a case of buffering, the corner unit reinforcing bar 10 is formed in advance in a state where the central L-shaped vertical bar 18 ′ is omitted, and the L-shaped vertical bar 18 ′ is formed after foundation construction or in the reinforcing bar assembly. Can be retrofitted.

本実施形態では、Ｌ字横筋１９は、Ｌ字縦筋１８と同様に、例えば直径が９〜１６ｍｍ程度の丸鋼や、呼び径が例えばＤ１０〜Ｄ１６程度の異形鉄筋からなる。Ｌ字横筋１９は、好ましくは建物のモジュールを考慮して、例えば４４０〜１０００ｍｍ程度の略同じ長さの一方の辺部１９ａ及び他方の辺部１９ｂを備えることができるように、例えば８８０〜２０００ｍｍ程度の長さに形成される。またＬ字横筋１９は、Ｌ字縦筋１８の垂直部１８ｂと格子状に交差するようにして、例えば２００ｍｍ程度の中心間ピッチで複数本（本実施形態では３本）平行に配設される。   In the present embodiment, the L-shaped horizontal bar 19 is made of, for example, a round steel having a diameter of about 9 to 16 mm, or a deformed bar having a nominal diameter of about D10 to D16, as with the L-shaped vertical bar 18. The L-shaped horizontal stripe 19 is preferably 880 to 2000 mm so that it can be provided with one side 19a and the other side 19b having substantially the same length, for example, about 440 to 1000 mm, considering a module of the building. It is formed to a length of about. Further, a plurality of L-shaped horizontal stripes 19 (three in the present embodiment) are arranged in parallel at a center-to-center pitch of, for example, about 200 mm so as to intersect with the vertical portions 18b of the L-shaped vertical stripes 18 in a lattice pattern. .

そして、本実施形態のコーナー部ユニット鉄筋１０は、例えば工場等において、鉄筋ベンダー等の公知の鉄筋折曲げ加工機や、溶接等の簡易な鉄筋接合手段を用いることにより、互いに垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有する立体形状に形成され、容易且つ効率良く製造することができると共に、量産を図ることも可能である。すなわち、本実施形態のコーナー部ユニット鉄筋１０を形成するには、例えば、まず、折曲げ前の直線状のＬ字縦筋１８と折曲げ前の直線状のＬ字横筋１９を各々復数本用いて、折曲げ加工を施す前の面状ユニット２２を形成する。面状ユニット２２を形成するには、図５に示すように、Ｌ字縦筋１８を例えば２００ｍｍのピッチで複数平行に配置すると共に、これの垂直部１８ｂと交差するようにして、Ｌ字横筋１９を例えば２００ｍｍのピッチで格子状に配置し、各交点部分２１を溶接接合する。   The corner unit rebar 10 of the present embodiment is a three-direction perpendicular to each other by using a known rebar bending machine such as a rebar bender or simple rebar joining means such as welding in a factory or the like. It is formed into a three-dimensional shape having reinforcing bar arrangement surfaces 20a, 20b, and 20c, and can be manufactured easily and efficiently, and mass production is also possible. That is, in order to form the corner unit rebar 10 of the present embodiment, for example, first, the linear L-shaped vertical bars 18 before bending and the linear L-shaped horizontal bars 19 before bending are respectively recursed. The planar unit 22 before being bent is used. In order to form the planar unit 22, as shown in FIG. 5, a plurality of L-shaped vertical bars 18 are arranged in parallel at a pitch of, for example, 200 mm, and intersect with the vertical portions 18b so as to intersect with the L-shaped horizontal bars. 19 are arranged in a grid pattern with a pitch of 200 mm, for example, and each intersection portion 21 is welded.

次に、鉄筋折曲げ加工機を用いて、形成した面状ユニット２２に１次折曲げ加工を施す。１次折曲げ加工は、図６に示すように、面状ユニット２２に対して、複数本の折曲げ前の直線状のＬ字縦筋１８，１８’を、水平部１８ａと垂直部１８ｂとの境目部分である第１折曲げ線Ｘ−Ｘに沿ってＬ字状に折り曲げることにより行われ、これによって水平部１８ａと垂直部１８ｂが形成される。ここで、このような１次折曲げ加工において、Ｌ字横筋１９の一方の辺部１９ａに連結されたＬ字縦筋１８の折曲げ位置と、他方の辺部１９ｂに連結されたＬ字縦筋１８の折曲げ位置とを、Ｌ字縦筋１８の太さ相当分、高さ方向に位置ずれした状態で折り曲げておくことが好ましい。Ｌ字横筋１９の一方の辺部１９ａと他方の辺部１９ｂに連結されたＬ字縦筋１８の折曲げ位置を、高さ方向に位置ずれさせておくことにより、後述する２次折曲げ加工を施す際に、格子状に配置されるＬ字縦筋１８の水平部１８ａ同士の緩衝を容易に回避することが可能になり、２次折曲げ加工や交差した水平部１８ａの各交点部分２３の接合作業を、よりスムーズに行うことが可能になる。   Next, a primary bending process is performed on the formed planar unit 22 using a reinforcing bar bending machine. As shown in FIG. 6, the primary bending process is performed on the planar unit 22 with a plurality of straight L-shaped vertical bars 18, 18 ′ before bending, a horizontal portion 18 a and a vertical portion 18 b. This is performed by bending in an L shape along the first fold line XX, which is the boundary between the horizontal portion 18a and the vertical portion 18b. Here, in such a primary bending process, the bending position of the L-shaped vertical line 18 connected to one side 19a of the L-shaped horizontal line 19 and the L-shaped vertical line connected to the other side 19b. It is preferable to bend the line 18 in a state where the line 18 is displaced in the height direction by an amount corresponding to the thickness of the L-shaped vertical line 18. By bending the position of bending of the L-shaped vertical stripe 18 connected to one side 19a and the other side 19b of the L-shaped horizontal stripe 19 in the height direction, a secondary bending process described later is performed. When performing the above, it becomes possible to easily avoid the buffering between the horizontal portions 18a of the L-shaped vertical streaks 18 arranged in a lattice shape, so that each intersection portion 23 of the horizontal bending 18a or the intersecting horizontal portions 18a. It is possible to perform the joining operation more smoothly.

１次折曲げ加工が終了したら、同様の鉄筋折曲げ加工機を用いて、２次折曲げ加工を施す。２次折曲げ加工は、１次折曲げ加工により各Ｌ字縦筋１８がＬ字形状に折り曲げられた図６のユニット鉄筋に対して、図７に示すように、複数本の折曲げ前の直線状のＬ字横筋１９を、中央のＬ字縦筋１８’に沿った第２折曲げ線Ｙ−Ｙを中心にＬ字状に折り曲げることにより行われる。これによって各Ｌ字横筋１９は、一方の辺部１９ａと他方の辺部１９ｂが垂直に折れ曲がったＬ字形状を備えることになると共に、Ｌ字横筋１９の一方の辺部１９ａに連結されたＬ字縦筋１８の水平部１８ａと、他方の辺部１９ｂに連結されたＬ字縦筋１８の水平部１８ａとが、格子状に交差して配置されることになる。ここで、上述のように、Ｌ字横筋１９の一方の辺部１９ａと他方の辺部１９ｂに連結されたＬ字縦筋１８の折曲げ位置を、高さ方向に位置ずれさせておくことにより、格子状に配置されるＬ字縦筋１８の水平部１８ａ同士の緩衝を回避することが可能になるが、折曲げ位置を高さ方向に位置ずれさせておかなくても、例えば一方の辺部１９ａに連結されたＬ字縦筋１８の水平部１８ａを少し外側に広げた状態で２次折曲げ加工を施すことによって、一方の辺部１９ａに連結されたＬ字縦筋１８の水平部１８ａと、他方の辺部１９ｂに連結されたＬ字縦筋１８の水平部１８ａとが緩衝するのを回避することが可能になる。   When the primary bending process is completed, the secondary bending process is performed using the same reinforcing bar bending machine. In the secondary bending process, as shown in FIG. 7, a plurality of unfolded unit rebars in FIG. 6 in which each L-shaped vertical bar 18 is bent into an L shape by the primary bending process. The straight L-shaped horizontal stripes 19 are bent in an L shape around the second fold line YY along the central L-shaped vertical stripe 18 '. As a result, each L-shaped horizontal bar 19 has an L-shape in which one side 19a and the other side 19b are bent vertically, and L connected to one side 19a of the L-shaped horizontal bar 19. The horizontal portion 18a of the vertical stripe 18 and the horizontal portion 18a of the L-shaped vertical stripe 18 connected to the other side 19b are arranged so as to intersect in a lattice pattern. Here, as described above, the bending position of the L-shaped vertical stripe 18 connected to one side 19a and the other side 19b of the L-shaped horizontal stripe 19 is shifted in the height direction. It is possible to avoid the buffering between the horizontal portions 18a of the L-shaped vertical bars 18 arranged in a lattice shape, but even if the bending position is not displaced in the height direction, for example, one side The horizontal portion of the L-shaped vertical line 18 connected to one side 19a is obtained by performing a secondary bending process in a state where the horizontal portion 18a of the L-shaped vertical line 18 connected to the portion 19a is slightly expanded outward. It is possible to avoid the buffering of 18a and the horizontal part 18a of the L-shaped vertical line 18 connected to the other side part 19b.

２次折曲げ加工が終了したら、格子状に交差して配置された、Ｌ字横筋１９の一方の辺部１９ａに連結するＬ字縦筋１８の水平部１８ａと他方の辺部１９ｂに連結するＬ字縦筋１８の水平部１８ａとの各交点部分２３を、例えば溶接によって接合する。これによって、出隅コーナー部１２で平面Ｌ字形状に折れ曲がった立上り部１６に配置される、Ｌ字横筋１９及びＬ字縦筋１８の垂直部１８ｂによる格子状の一対の配筋面２０ａ，２０ｂと、立上り部１６の内側のスラブ部１５に配置される、Ｌ字縦筋１８の水平部１８ａによる格子状の配筋面２０ｃとからなる、垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有する強固且つ安定した立体形状のコーナー部ユニット鉄筋１０が容易に形成されることになる。   When the secondary bending process is finished, the horizontal part 18a of the L-shaped vertical line 18 connected to one side part 19a of the L-shaped horizontal line 19 and the other side part 19b, which are arranged so as to intersect with each other in a lattice shape, are connected. Each intersection part 23 with the horizontal part 18a of the L-shaped vertical stripe 18 is joined by welding, for example. Thereby, a pair of lattice-like bar arrangement surfaces 20a and 20b formed by the L-shaped horizontal stripes 19 and the vertical portions 18b of the L-shaped vertical stripes 18 arranged in the rising portion 16 bent in a plane L shape at the protruding corner portion 12. And three vertical bar arrangement surfaces 20a, 20b, 20c, which are arranged in the slab portion 15 inside the rising portion 16 and the lattice-like bar arrangement surface 20c by the horizontal portion 18a of the L-shaped vertical bars 18. Thus, the solid and stable three-dimensional corner unit rebar 10 is easily formed.

上述のようにして形成された本実施形態の立体形状のコーナー部ユニット鉄筋１０は、三方向の配筋面２０ａ，２０ｂ，２０ｃを各々重ね合わせるようにして、複数積み重ねた積層状態とするとができ、こにような積層状態で効率良く保管したり、建物１３の建築施工現場まで効率良く運搬することが可能になる。   The three-dimensional corner unit reinforcing bar 10 of the present embodiment formed as described above can be made into a stacked state in which a plurality of stacked reinforcing bar surfaces 20a, 20b, and 20c are overlapped. Thus, it is possible to store efficiently in such a laminated state or to efficiently transport the building 13 to the construction site.

本実施形態の立体形状のコーナー部ユニット鉄筋１０は、建物１３の建築施工現場において鉄筋コンクリート製のべた基礎１１を形成する際に、べた基礎１１の出隅コーナー部１２に設置して用いられる。また本実施形態では、べた基礎１１の出隅コーナー部１２を挟んだ両辺部分に、図８に示すように、例えばべた基礎１１のスラブ部１５に沿って配筋される水平部２４ａと立上り部１６に沿って配筋される垂直部２４ｂとからなる複数本のＬ字縦筋２４をスラブ部横筋２５及び立上り部横筋２６を用いて連結してなるＬ形ユニット鉄筋２７が、立上り部横筋２６をＬ字横筋１９に接続すると共に、スラブ部横筋２５をＬ字縦筋１８の水平部１８ａに接続して、コーナー部ユニット鉄筋１０の両側に配置される（図８では片側のみ図示）。またコーナー部ユニット鉄筋１０やＬ形ユニット鉄筋２７によって囲まれるこれらの内側のスラブ部１５には、例えば縦筋と横筋を格子状に配置してなる面状スラブ部ユニット鉄筋（図示せず）が配置される。   The three-dimensional corner unit rebar 10 according to the present embodiment is installed and used at the corner corner 12 of the solid foundation 11 when the solid foundation 11 made of reinforced concrete is formed at the construction site of the building 13. Moreover, in this embodiment, as shown in FIG. 8, the horizontal part 24a and the rising part which are arranged along the slab part 15 of the solid foundation 11, for example, are shown in FIG. An L-shaped unit rebar 27, which is formed by connecting a plurality of L-shaped vertical bars 24 composed of vertical parts 24 b arranged along 16 using slab part horizontal bars 25 and rising part horizontal bars 26, rises horizontal bars 26. Is connected to the L-shaped horizontal bar 19 and the slab horizontal bar 25 is connected to the horizontal part 18a of the L-shaped vertical bar 18 and arranged on both sides of the corner unit reinforcing bar 10 (only one side is shown in FIG. 8). Further, in these inner slab portions 15 surrounded by the corner unit rebars 10 and the L-shaped unit rebars 27, for example, planar slab unit rebars (not shown) formed by arranging vertical bars and horizontal bars in a grid pattern. Be placed.

そして、本実施形態によれば、多くの鉄筋を錯綜させることなくシンプルな形状で出隅コーナー部１２における鉄筋の連続性を確保することができ、且つ出隅コーナー部１２での配筋作業を容易に行えるようにすることが可能になる。すなわち、本実施形態によれば、好ましくは予め工場等で製造された、Ｌ字縦筋１８やＬ字横筋１９を格子状に配置し、各交点部分２１，２３を接合することにより互いに垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有する立体形状に形成されたコーナー部ユニット鉄筋１０を、各配筋面２０ａ，２０ｂ，２０ｃをＬ字形状に折れ曲がった立上り部１６による一対の面とこれらの間のスラブ部１５による面に沿わせつつ、出隅コーナー部１２の所定の位置に配置することにより、出隅コーナー部１２での配筋作業が行われるので、当該配筋作業を容易に行うことが可能になると共に、予め組み立てられたＬ字形状のＬ字縦筋１８及びＬ字横筋１９によって、出隅コーナー部１２における鉄筋１８，１９の連続性を、鉄筋１８，１９を錯綜させることなく容易に確保することが可能になる。   And according to this embodiment, the continuity of the reinforcing bar in the corner corner portion 12 can be secured with a simple shape without complicating many reinforcing bars, and the bar arrangement work in the corner corner portion 12 can be performed. It becomes possible to make it easy. That is, according to this embodiment, the L-shaped vertical stripes 18 and the L-shaped horizontal stripes 19 that are preferably manufactured in advance in a factory or the like are arranged in a lattice pattern, and the intersection portions 21 and 23 are joined to each other so as to be perpendicular to each other. A corner unit rebar 10 formed into a three-dimensional shape having three-direction bar arrangement surfaces 20a, 20b, 20c, and a pair of surfaces formed by rising portions 16 in which the bar arrangement surfaces 20a, 20b, 20c are bent in an L shape, By arranging at a predetermined position of the corner corner portion 12 while being along the surface by the slab portion 15 between them, the bar arrangement work at the corner corner portion 12 is performed, so that the bar arrangement work is easy. And the continuity of the rebars 18 and 19 in the corner portion 12 is complicated by the L-shaped vertical L-shaped bars 18 and L-shaped horizontal bars 19 assembled in advance. It is possible to easily secure without.

また、本実施形態では、べた基礎１１の出隅コーナー部１２に設置されるコーナー部ユニット鉄筋１０と、これに隣接するＬ形ユニット鉄筋２７や面状スラブ部ユニット鉄筋との接続は、例えば直線状の継ぎ鉄筋２８を用いて、Ｌ字縦筋１８の水平部２４ａの直線状の端部や、Ｌ字横筋１９の各辺部１９ａ，１９ｂの直線状の端部との間で行うことができるので、所定の継手長さを確保しつつ、出隅コーナー部１２やこれの周囲における配筋作業を容易且つ効率良く行うことが可能になる。   Moreover, in this embodiment, the connection between the corner part unit reinforcing bar 10 installed in the protruding corner part 12 of the solid foundation 11 and the L-shaped unit reinforcing bar 27 and the planar slab part unit reinforcing bar adjacent thereto is, for example, a straight line. This is performed between the straight ends of the horizontal portions 24a of the L-shaped vertical bars 18 and the straight ends of the side portions 19a and 19b of the L-shaped horizontal bars 19 by using the shaped reinforcing bars 28. Therefore, it is possible to easily and efficiently perform the bar arrangement work at the corner portion 12 and its surroundings while securing a predetermined joint length.

さらに、本実施形態では、コーナー部ユニット鉄筋１０は、互いに垂直な三方向の配筋面２０ａ，２０ｂ，２０ｃを有する安定した立体形状を有しているので、自立させた状態で出隅コーナー部１２の所定の位置に精度良く位置決めすることができ、立上り筋としてのＬ字縦筋１８の垂直部１８ｂの垂直精度も容易に確保することができると共に、部品点数や鉄筋量、継ぎ手箇所等を効果的に削減することも可能になる。   Furthermore, in the present embodiment, the corner unit rebar 10 has a stable three-dimensional shape having the bar arrangement surfaces 20a, 20b, 20c in three directions perpendicular to each other. 12, the vertical accuracy of the vertical portion 18b of the L-shaped vertical line 18 as the rising line can be easily secured, and the number of parts, the amount of reinforcing bars, the joint location, etc. It can also be effectively reduced.

なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、べた基礎出隅コーナー部ユニット鉄筋と、これに隣接するＬ形ユニット鉄筋や面状スラブ部ユニット鉄筋との接続は、継ぎ鉄筋を用いて行う必要は必ずしも無く、所定の継手長さを確保しつつこれらを直接接合することもでき、溶接や圧接等によってこれらを接合することもできる。また、べた基礎出隅コーナー部ユニット鉄筋は、９本のＬ字縦筋と３本のＬ字横筋を用いて形成する必要は必ずしもなく、その本数や配設ピッチ等は、使用する鉄筋の太さや、べた基礎の立上り高さ、べた基礎の厚さ、設計強度等に応じて適宜変更することができる。さらに、べた基礎出隅コーナー部ユニット鉄筋は、鉄筋折曲げ加工機による上述の１次、２次の折曲げ加工を経て予め工場等において形成する必要は必ずしもなく、例えば建築施工現場において、複数のＬ字縦筋と複数のＬ字横筋を組み合わせて配置し、交差部を溶接や圧接等により接合することで、垂直な三方向の配筋面を有する立体形状に形成することもできる。   The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to use a joint reinforcing bar to connect a solid foundation corner corner unit rebar to an L-shaped unit rebar or planar slab unit rebar adjacent to it, ensuring a predetermined joint length However, these can also be joined directly, and these can be joined by welding, pressure welding, or the like. Further, it is not always necessary to form the solid foundation corner portion unit reinforcing bars using the nine L-shaped vertical bars and the three L-shaped horizontal bars. It can be appropriately changed according to the rising height of the solid foundation, the thickness of the solid foundation, the design strength, and the like. Furthermore, it is not always necessary to form the solid foundation corner portion unit reinforcing bar in the factory or the like in advance through the above-described primary and secondary bending processes by a reinforcing bar bending machine. By arranging the L-shaped vertical bars and a plurality of L-shaped horizontal bars in combination and joining the intersecting portions by welding, pressure welding, or the like, it is also possible to form a three-dimensional shape having three vertical bar arrangement surfaces.

本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋を示す斜視図である。It is a perspective view which shows the solid basic | foundation corner corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋が設置されるべた基礎を説明する部分断面図である。It is a fragmentary sectional view explaining the solid foundation in which the solid foundation protruding corner part unit reinforcing bar which concerns on one preferable embodiment of this invention is installed. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋が設置されるべた基礎を説明する部分拡大断面図である。It is a partial expanded sectional view explaining the solid foundation in which the solid basic | foundation corner corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention is installed. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋が設置されるべた基礎を説明する、建物本体を省略して示す平面図である。It is a top view which abbreviate | omits a building main body and demonstrates the solid foundation in which the solid foundation protruding corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention is installed. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋の折曲げ加工を施す前の面状ユニットの状態を説明する平面図である。It is a top view explaining the state of the planar unit before performing the bending process of the solid basic | foundation corner corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋の１次折曲げ加工を施した後の状態を説明する斜視図である。It is a perspective view explaining the state after giving the primary bending process of the solid basic | foundation corner corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋の２次折曲げ加工を施した後の状態を説明する斜視図である。It is a perspective view explaining the state after giving the secondary bending process of the solid basic | foundation corner corner part unit reinforcing bar which concerns on preferable one Embodiment of this invention. 本発明の好ましい一実施形態に係るべた基礎出隅コーナー部ユニット鉄筋をべた基礎の出隅コーナー部に設置して他のユニット鉄筋と接続する状況を説明する略示斜視図である。It is a schematic perspective view explaining the situation which installs the solid foundation corner corner part unit reinforcing bar concerning one preferred embodiment of the present invention in the corner corner part of the solid foundation, and connects with other unit reinforcing bars.

符号の説明Explanation of symbols

１０ べた基礎出隅コーナー部ユニット鉄筋
１１ べた基礎
１２ べた基礎の出隅コーナー部
１３ 建物
１４ 基礎砕石
１５ スラブ部
１６ 立上り部
１７ 地盤
１８ Ｌ字縦筋
１８ａ Ｌ字縦筋の水平部
１８ｂ Ｌ字縦筋の垂直部
１９ Ｌ字横筋
１９ａ Ｌ字横筋の一方の辺部
１９ｂ Ｌ字横筋の他方の辺部
２０ａ，２０ｂ，２０ｃ 配筋面
２１，２３ 交点部分
２２ 面状ユニット
２４ Ｌ字縦筋
２４ａ Ｌ字縦筋の水平部
２４ｂ Ｌ字縦筋の垂直部
２５ スラブ部横筋
２６ 立上り部横筋
２７ Ｌ形ユニット鉄筋
２８ 継ぎ鉄筋
10 Solid Foundation Corner Corner Unit Reinforcing Bar 11 Solid Foundation 12 Solid Corner Corner Corner Section 13 Building 14 Ground Crushed Stone 15 Slab Part 16 Rising Part 17 Ground 18 L-Shaped Longitudinal 18a L-Shaped Vertical Bar Horizontal 18b L-Shaped Vertical Vertical section 19 L-shaped horizontal line 19a One side 19b of L-shaped horizontal line The other side 20a, 20b, 20c of the L-shaped horizontal line Reinforcement surface 21, 23 Intersection part 22 Planar unit 24 L-shaped vertical line 24a L Horizontal section 24b of vertical L-bar Vertical section 25 of L-shaped vertical bar 25 Horizontal bar 26 of slab section Rise horizontal bar 27 L-shaped unit reinforcing bar 28 Joint reinforcing bar

Claims (4)

べた基礎の出隅コーナー部に設置される、前記べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋を含み、該Ｌ字縦筋の垂直部を複数本のＬ字横筋に格子状に連結すると共に、該Ｌ字縦筋の水平部を格子状に交差配置した状態で組み立てられて、互いに垂直な三方向の配筋面を有するべた基礎出隅コーナー部ユニット鉄筋の製造方法であって、
折曲げ前の直線状の前記Ｌ字縦筋を所定のピッチで複数平行に配置すると共に、これの前記垂直部と交差するようにして、折曲げ前の直線状の前記Ｌ字横筋を格子状に配置し、各交点部分を接合することにより、折曲げ加工を施す前の面状ユニットを形成し、
該面状ユニットに対して、複数本の前記Ｌ字縦筋をＬ字状に折り曲げて水平部と垂直部を形成する１次折曲げ加工を施した後に、複数本の前記Ｌ字横筋をＬ字状に折り曲げて、該Ｌ字横筋の一方の辺部に連結された前記Ｌ字縦筋の水平部と、他方の辺部に連結された前記Ｌ字縦筋の水平部とを格子状に交差させる２次折曲げ加工を施し、水平部の各交点部分を接合することにより、前記互いに垂直な三方向の配筋面を有する立体形状を形成するべた基礎出隅コーナー部ユニット鉄筋の製造方法。 Ru is installed in external corner corner of mat foundation, an L-shaped vertical lines plurality comprising a vertical section which is reinforcement along the horizontal portion and the rising portion to be reinforcement along the slab portion of the solid foundation In addition, the vertical portions of the L-shaped vertical streaks are connected to a plurality of L-shaped horizontal streaks in a grid pattern, and the horizontal portions of the L-shaped vertical bars are assembled so as to cross each other in a grid pattern. A method of manufacturing a solid foundation corner portion unit reinforcing bar having a reinforcing surface in a direction ,
A plurality of straight L-shaped vertical stripes before bending are arranged in parallel at a predetermined pitch, and the straight L-shaped horizontal stripes before folding are arranged in a lattice pattern so as to intersect the vertical portions thereof. To form a planar unit before bending, by joining each intersection part,
The planar unit is subjected to a primary bending process in which a plurality of L-shaped vertical bars are bent into an L shape to form a horizontal portion and a vertical portion, and then the plurality of L-shaped horizontal bars are The L-shaped vertical bars connected to one side of the L-shaped horizontal stripes and the horizontal parts of the L-shaped vertical bars connected to the other side in a lattice shape. A method of manufacturing a solid foundation corner portion unit reinforcing bar that forms a solid shape having three reinforcing bars arranged in three directions perpendicular to each other by performing a second bending process for crossing and joining each intersection part of the horizontal part . 前記１次折曲げ加工において、前記Ｌ字横筋の一方の辺部に連結されたＬ字縦筋の折曲げ位置と、他方の辺部に連結されたＬ字縦筋の折曲げ位置とが、前記Ｌ字縦筋の太さ相当分、高さ方向に位置ずれした状態で折り曲げられる請求項１に記載のべた基礎出隅コーナー部ユニット鉄筋の製造方法。 In the primary bending process, the bending position of the L-shaped vertical line connected to one side of the L-shaped horizontal line and the bending position of the L-shaped vertical line connected to the other side part are: The method for manufacturing a solid basic corner portion unit reinforcing bar according to claim 1 , wherein the reinforcing bar is bent while being displaced in the height direction by an amount corresponding to the thickness of the L-shaped vertical bar. 請求項１又は２に記載のべた基礎出隅コーナー部ユニット鉄筋の製造方法によって製造されたべた基礎出隅コーナー部ユニット鉄筋であって、
べた基礎の出隅コーナー部に設置され、前記べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋を含み、該Ｌ字縦筋の垂直部を複数本のＬ字横筋に格子状に連結すると共に、該Ｌ字縦筋の水平部を格子状に交差配置した状態で組み立てられて、互いに垂直な三方向の配筋面を有するべた基礎出隅コーナー部ユニット鉄筋。 A solid foundation corner portion unit reinforcing bar produced by the method for producing a solid foundation corner portion unit reinforcing bar according to claim 1 or 2,
A plurality of L-shaped vertical bars, which are installed at the corners of the corners of the solid foundation, and include a horizontal portion arranged along the slab portion of the solid foundation and a vertical portion arranged along the rising portion; The vertical portions of the L-shaped vertical bars are connected to a plurality of L-shaped horizontal bars in a grid pattern, and the horizontal parts of the L-shaped vertical bars are assembled in a grid pattern so as to be perpendicular to each other. Solid foundation corner unit rebar with a bar arrangement surface . 請求項１又は２に記載のべた基礎出隅コーナー部ユニット鉄筋の製造方法によって製造されたべた基礎出隅コーナー部ユニット鉄筋を用いたべた基礎の配筋構造であって、
前記べた基礎の出隅コーナー部に前記べた基礎出隅コーナー部ユニット鉄筋が配置され、前記べた基礎の出隅コーナー部を挟んだ両辺部分に、べた基礎のスラブ部に沿って配筋される水平部と立上り部に沿って配筋される垂直部とからなる複数本のＬ字縦筋をスラブ部横筋及び立上り部横筋を用いて連結してなるＬ形ユニット鉄筋が、前記立上り部横筋を前記Ｌ字横筋に接続すると共に、前記スラブ部横筋を前記水平部に接続して、前記べた基礎出隅コーナー部ユニット鉄筋の両側に配置されるべた基礎の配筋構造。 A bar arrangement structure for a solid foundation using a solid foundation corner portion unit reinforcing bar manufactured by the method for manufacturing a solid foundation corner portion unit reinforcing bar according to claim 1 or 2 ,
The solid foundation corner portion unit reinforcing bar is disposed at the corner portion of the solid foundation, and the bars are arranged along the slab portion of the solid foundation on both sides sandwiching the corner portion of the solid foundation. An L-shaped unit reinforcing bar formed by connecting a plurality of L-shaped vertical bars composed of a vertical part arranged along a rising part and a vertical part using a slab part horizontal line and a rising part horizontal line, A solid bar arrangement structure that is connected to an L-shaped horizontal bar and that is connected to the horizontal part of the slab horizontal bar and arranged on both sides of the solid foundation corner unit steel bar.
JP2006175769A 2006-06-26 2006-06-26 Manufacturing method for solid foundation corner corner unit rebar Expired - Fee Related JP4933847B2 (en)

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CN111945766A (en) * 2020-07-01 2020-11-17 中国建筑一局(集团)有限公司 Deep foundation pit raft foundation steel bar reverse construction method

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JPS58138861A (en) * 1982-02-08 1983-08-17 積水ハウス株式会社 Preassembled reinforcing wire arranging method
JP2968715B2 (en) * 1996-03-08 1999-11-02 三栄商事株式会社 Reinforcement structure of residential foundation
JP2000073379A (en) * 1998-08-28 2000-03-07 Misawa Homes Co Ltd Bar arrangement for mat foundation work execution, and work execution method of the mat foundation
JP2001107374A (en) * 1999-10-05 2001-04-17 Kanai:Kk Construction method for building foundation
JP2004169279A (en) * 2002-11-18 2004-06-17 Fujita:Kk Reinforcing bar unit for constructing rise corner portion of mat foundation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111945766A (en) * 2020-07-01 2020-11-17 中国建筑一局(集团)有限公司 Deep foundation pit raft foundation steel bar reverse construction method

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