JP2011080304A - Reinforcement holding hardware - Google Patents

Reinforcement holding hardware Download PDF

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JP2011080304A
JP2011080304A JP2009234803A JP2009234803A JP2011080304A JP 2011080304 A JP2011080304 A JP 2011080304A JP 2009234803 A JP2009234803 A JP 2009234803A JP 2009234803 A JP2009234803 A JP 2009234803A JP 2011080304 A JP2011080304 A JP 2011080304A
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reinforcing bar
steel frame
steel
web
holding hardware
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JP5254169B2 (en
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Masanori Sano
勝之 佐野
Hiroyuki Maeda
博之 前田
Nobuhiro Ozaki
悦広 尾崎
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Kajima Corp
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Kajima Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide reinforcement holding hardware which does not require welding work and does not cause waiting time since everything is completed by the work of a reinforcement worker, is reduced in material cost, and can be driven into concrete structurally without a trouble. <P>SOLUTION: The reinforcement holding hardware 10 uses steel frames, and forms, by bending one reinforcement continuously: a U-shaped part 11 gripping the upper flange 14a of the steel frame; a contact which is bent at almost the right angle from its opening end and is brought into contact with the web 14b of the steel frame; and an insertion hanger 13 to the steel frame placing which has a straight bent shape so that it is placed in parallel with the U-shaped part 11 from the contact part at almost the right angle from the contact part. The contact part is bent at almost the right angle from the opening 11a end of the U-shaped part 11 gripping the flange of the steel frame, and is made into a straight line part 12 which is brought into contact with the web 14b of the steel frame. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、例えば、鉄骨梁の側面に鉄筋コンクリート造の梁を一体化する場合などの建設工事の鉄筋工事で利用する鉄筋（組）の保持金物であり、鉄骨を利用した鉄筋保持金物に関するものである。   The present invention relates to a reinforcing bar holding hardware used in reinforcing work for construction work, for example, in the case of integrating a reinforced concrete beam on the side of a steel beam, and relates to a reinforcing steel holding hardware using a steel frame. is there.

例えば、鉄骨梁の側面に鉄筋コンクリート造の梁を一体化する場合の従来の技術・工法としては次のようなものがある。   For example, conventional techniques and methods for integrating a reinforced concrete beam on the side of a steel beam include the following.

第１の事例としては、ＲＣ（鉄筋コンクリート）梁のスターラップ筋を１ｍ以下毎に鉄骨梁ウエブプレートにフレアー溶接をして固定するが、その数は膨大である。   As a first example, stirrup bars of RC (steel reinforced concrete) beams are fixed to a steel beam web plate by flaring every 1 m or less, but the number is enormous.

その後、残りのスターラップ筋と梁主筋を前記先行して溶接したスターラップ筋に荷重を支持させて配筋する。   Thereafter, the remaining stirrup bars and beam main bars are arranged with the load supported by the stirrup bars welded in advance.

第２の事例としては、下記特許文献１にあるように、保持ブラケットを使用する方法で、鉄骨梁のウエブプレートに鍛冶工が制作した仮設アングルブラケット材などを２ｍ程度毎に上端主筋レベルに溶接する。その後、スターラップ筋と梁主筋を仮設アングル材に荷重を支持させて配筋する。
特開平６−２２９１２１号公報 As a second example, as described in Patent Document 1 below, a method using a holding bracket is used to weld a temporary angle bracket material produced by a blacksmith on a steel beam web plate to the upper main bar level about every 2 m. To do. After that, the stirrup bars and beam main bars are arranged with the temporary angle member supporting the load.
JP-A-6-229121

これを更に詳細に説明すると、図４に示すように、鉄骨柱またはＰＣ柱及び鉄骨梁の建方後、鉄骨梁Ｇのウエブ１にブラケット２を梁の長手方向に適宜間隔に取付け、各ブラケット２上に梁部の上主筋３を配置して、同上主筋３から所定間隔毎に肋筋４を配設し、同各肋筋４に梁部の下主筋５を配筋して、上下主筋３、５と肋筋４を結束して梁部の配筋を行い、前記上主筋３に壁部の縦鉄筋６をフック６ａを介して懸吊し、同壁部の縦鉄筋６の下部を下階の梁部に定着長６ｂ差し込み、前記壁部縦鉄筋６に壁部の横鉄筋７を配筋する。   This will be described in more detail. As shown in FIG. 4, after the steel column or PC column and the steel beam are erected, brackets 2 are attached to the web 1 of the steel beam G at appropriate intervals in the longitudinal direction of the beam. The upper main bar 3 of the beam part is disposed on the upper bar 3, the gluteal bars 4 are arranged at predetermined intervals from the upper main bar 3, and the lower main bar 5 of the beam part is arranged on each of the lower bar 4, and the upper and lower main bars 3 and 5 and the reinforcing bar 4 are bound to arrange the beam part, and the vertical reinforcing bar 6 of the wall part is suspended from the upper main reinforcing bar 3 through the hook 6a, and the lower part of the vertical reinforcing bar 6 of the wall part is suspended. The fixing length 6b is inserted into the beam part of the lower floor, and the horizontal reinforcing bar 7 of the wall part is arranged on the wall vertical reinforcing bar 6.

なお、前記特許文献１ではブラケット２の内容記載についてはないが、通常はアングル材や帯状金属、または、プレートを用いたもので、鉄骨梁Ｇに対しては溶接をもって取り付ける。   In addition, although the content of the bracket 2 is not described in Patent Document 1, an angle member, a band-shaped metal, or a plate is usually used, and the steel beam G is attached by welding.

前記従来技術で、第１の事例では、鉄筋工が配筋作業を行う前に、鍛冶工で行う先行溶接作業が発生していた。鉄筋工の作業が手待ちになることが多く、工事期間の延長となっていた。   In the prior art, in the first case, prior welding work performed by a blacksmith has occurred before the reinforcing bar works. Reinforcement work was often awaited and the construction period was extended.

品質面では、鉄骨梁ウエブプレートに現場で溶接作業を行うため、十分な管理がされていない場合があった。   In terms of quality, there was a case where sufficient management was not performed because the welding work was performed on the steel beam web plate in the field.

第２の事例である特許文献１でもほぼ同様であり、溶接作業を伴うこと、また、専用のブラケットを作製・準備しなければならず、これがコンクリートに打ち込まれた場合の影響についても考慮しなければならない。   The same is true for Patent Document 1 as the second case, which involves welding work, and a special bracket must be prepared and prepared, and the effect of this when it is driven into concrete must be considered. I must.

本発明の目的は前記従来例の不都合を解消し、溶接作業を伴わず、鉄筋工による作業ですべて完結しているので、作業の手待ちが発生せず、材料コストも安価であり、構造上コンクリートに打ち込まれても支障の無い鉄筋保持金物を提供することにある。   The object of the present invention is to eliminate the inconveniences of the conventional example, and is not accompanied by welding work, and is completed by rebar work, so there is no waiting for work, the material cost is low, and the structure The object is to provide rebar holding hardware that does not hinder even if it is driven into concrete.

請求項１記載の本発明は前記目的を達成するため、鉄骨を利用した鉄筋保持金物であり、鉄骨のフランジを挟持するＵ字部と、その開口端からに折れ曲がり、鉄骨のウエブに当接する当接部と、この当接部からほぼ直角に前記Ｕ字部に平行するように折れ曲がる直状のもので、鉄筋組への差し込みハンガー部とを連続的に１本の鉄筋で曲げ形成したことを要旨とするものである。   In order to achieve the above object, the present invention as defined in claim 1 is a reinforcing bar holding hardware using a steel frame, which is bent from a U-shaped portion sandwiching the flange of the steel frame and its open end and abuts against the web of the steel frame. A straight part that bends so as to be parallel to the U-shaped part at a right angle from the contact part, and the hanger part inserted into the reinforcing bar set is bent continuously with one reinforcing bar. It is a summary.

請求項１記載の本発明によれば、鉄筋工による作業ですべて完結しているので、作業の手待ちが発生しない。また、鉄筋業者の加工工場にある半端材を利用できるので、コスト面からも安価である。鍛冶工へ支払う賃金が節約できる。   According to the first aspect of the present invention, since all the work by the reinforcing bar is completed, there is no waiting for the work. Moreover, since the half-finished material in the processing factory of a rebar supplier can be used, it is cheap also from a cost side. The wage paid to the blacksmith can be saved.

さらに、現場での溶接作業が発生しないので品質面でも管理項目が減る。また、鉄筋保持金物自体は、鉄筋を使用でき、構造上コンクリートに打ち込まれても支障の無い材料であるため、撤去の必要がなく、省力化にもなる。   Furthermore, since no on-site welding work occurs, management items are reduced in terms of quality. In addition, the reinforcing bar holding hardware itself can use a reinforcing bar and is a material that does not hinder the structure when it is driven into the concrete. Therefore, it does not need to be removed and labor saving is achieved.

請求項２記載の本発明は、鉄骨のウエブに当接する当接部は、鉄骨のフランジを挟持するＵ字部の開口端からほぼ直角に折れ曲がり、鉄骨のウエブに当接する直線部であることを要旨とするものである。   According to the second aspect of the present invention, the abutting portion that abuts on the steel web is a straight portion that is bent substantially at right angles from the opening end of the U-shaped portion that sandwiches the flange of the steel frame and abuts on the steel web. It is a summary.

請求項２記載の本発明によれば、前記請求項１の作用に加えて、鉄骨のウエブに当接する当接部を直線部とすることで、ウエブへの当接面積を多く確保でき、鉄骨への安定した設置が可能となり、鉄筋組への支承強度も増す。   According to the second aspect of the present invention, in addition to the effect of the first aspect, the contact portion that contacts the web of the steel frame is a straight portion, so that a large area of contact with the web can be secured, and the steel frame Can be installed stably, and the bearing strength to the reinforcing bar assembly is also increased.

以上述べたように本発明の鉄筋保持金物は、溶接作業を伴わず、鉄筋工による作業ですべて完結しているので、作業の手待ちが発生せず、材料コストも安価であり、構造上コンクリートに打ち込まれても支障の無いものである。   As described above, the reinforcing bar holding hardware according to the present invention is not accompanied by welding work, and is completely completed by the work by the rebar worker, so there is no waiting for work, the material cost is low, and structurally concrete. It will not be a problem even if it is driven into.

以下、図面について本発明の実施の形態を詳細に説明する。図１は本発明の鉄筋保持金物の１実施形態を示す正面図、図２は使用状態を示す縦断正面図、図３は同上斜視図である。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an embodiment of a reinforcing bar holding hardware of the present invention, FIG. 2 is a longitudinal front view showing a use state, and FIG. 3 is a perspective view of the same.

先に、本発明の鉄筋保持金物１０の概要から説明すると、１本の鉄筋を連続的に曲げ形成したＳ字形の鉄筋である。   First, from the outline of the reinforcing bar holding hardware 10 of the present invention, it is an S-shaped reinforcing bar in which one reinforcing bar is continuously bent.

このＳ字形の鉄筋である本発明の鉄筋保持金物１０は、鉄骨を利用するものとして、鉄骨のフランジを挟持するＵ字部１１がある。   The reinforcing bar holding hardware 10 according to the present invention, which is an S-shaped reinforcing bar, uses a steel frame, and has a U-shaped part 11 for sandwiching a flange of the steel frame.

該Ｕ字部１１は、鉄骨梁フランジに横から挿入するもので、その隙間巾は鉄骨フランジプレートより５ｍｍ程度大きめに設定する。   The U-shaped portion 11 is inserted into the steel beam flange from the side, and the gap width is set to be about 5 mm larger than the steel flange plate.

また、開口１１ａから最深部までの奥行深さは、鉄骨フランジプレートの半分の巾を目安に設定するが、鉄骨のフランジを挟持できるものであれば特に限定はない。   Further, the depth from the opening 11a to the deepest part is set with a half width of the steel flange plate as a guide, but there is no particular limitation as long as the steel flange can be sandwiched.

鉄筋保持金物１０は、かかるＵ字部１１の開口１１ａ端からほぼ直角に折れ曲がり、鉄骨のウエブに当接する当接部として直線部１２を形成した。この直線部１２は前記Ｕ字部１１から垂下するものであるが、鉄骨のウエブに当接するものであれば、特にその長さに限定はない。   The rebar holding hardware 10 was bent at a substantially right angle from the end of the opening 11a of the U-shaped portion 11 to form a straight portion 12 as a contact portion that contacted the steel web. The straight portion 12 hangs down from the U-shaped portion 11, but the length is not particularly limited as long as it is in contact with the steel web.

さらに、鉄筋保持金物１０は、前記直線部１２からほぼ直角に前記Ｕ字部１１に平行するように折れ曲がる直状のもので、鉄筋組への差し込みハンガー部１３を形成した。このハンガー部１３の長さも、主筋とこれに組まれるスターラップ筋による鉄筋組を支承できるものであれば、これも特に限定する長さ制限はない。   Further, the reinforcing bar holding hardware 10 is a straight shape that is bent so as to be parallel to the U-shaped part 11 at a substantially right angle from the straight line part 12, and the insertion hanger part 13 to the reinforcing bar set is formed. The length of the hanger portion 13 is not particularly limited as long as it can support the reinforcing bar set by the main bar and the stirrup bar set in the main bar.

なお、前記鉄筋保持金物１０のハンガー部１３は直状のものであるが、途中を湾曲させたり、先端をさらに折り曲げるなどの構成を加えたものでもよい。   In addition, although the hanger part 13 of the said reinforcing-bar holding | maintenance metal fitting 10 is a straight thing, what added the structure, such as curving in the middle or further bending the front-end | tip, may be used.

また、鉄骨のウエブに当接する当接部としては、前記実施形態としては直線部１２としたが、必ずしも直線形状である必要はなく、これをＶ字形やＵ字形に構成し、一点のみを鉄骨のウエブに当接するようにしたものでもよい。   Further, as the abutting portion that abuts on the steel web, the linear portion 12 is used in the above embodiment, but it does not necessarily have a linear shape, and is formed in a V shape or U shape, and only one point is a steel frame. It may be adapted to abut on the web.

さらに、鉄筋に沿って当板等を沿わせて、当接部を形成することも可能である。また、折れ曲がる角度はほぼ直角である必要もなく、斜めに、折り曲け、さらに、下へ向かう直線状とすることも可能である。   Furthermore, it is also possible to form the contact portion along the reinforcing plate along the reinforcing bar. Further, the angle of bending does not need to be substantially a right angle, and it is possible to bend it diagonally and to make it straight down.

次に、使用法について説明する。このようにあらかじめ鉄筋加工場でＳ字形に加工された鉄筋材（Ｄ１９程度）としての本発明の鉄筋保持金物１０を現場に搬入する。   Next, usage will be described. In this way, the reinforcing bar holding hardware 10 of the present invention as a reinforcing bar material (about D19) processed in an S shape in advance at the reinforcing bar processing site is carried into the site.

鉄筋組立用足場から、鉄筋工にて鉄筋保持金物１０のＵ字部１１を鉄骨梁１４の上フランジ１４ａに横から挿入する。   From the reinforcing bar assembly scaffold, the U-shaped portion 11 of the reinforcing bar holding hardware 10 is inserted into the upper flange 14a of the steel beam 14 from the side by a reinforcing bar worker.

このように、鉄筋保持金物１０を挿入するピッチは主筋太さとスターラップのピッチにもよるが、概ね１ｍから２ｍ程度である。   Thus, although the pitch which inserts the reinforcement holding | maintenance metal fitting 10 is based also on the main reinforcement thickness and the pitch of a stirrup, it is about 1 m to about 2 m.

鉄骨梁１４の上フランジ１４ａを挟持するＵ字部１１では、これを溶接固定しない。また、直線部１２が鉄骨梁１４のウエブ１４ｂに当接する。   The U-shaped portion 11 that sandwiches the upper flange 14a of the steel beam 14 is not fixed by welding. Further, the straight portion 12 abuts on the web 14 b of the steel beam 14.

梁の上端主筋１５を配筋して本発明の鉄筋保持金物１０と番線固定する。番線固定には鉄筋保持金物１０のハンガー部１３を使用し、上端主筋１５はこのハンガー部１３上に載る状態となる。この時点で、鉄筋保持金物１０に荷重が掛り、抜け落ちたりすることがなくなる。   The upper main bar 15 of the beam is laid and fixed to the reinforcing bar holding hardware 10 according to the present invention. The hanger part 13 of the reinforcing bar holding hardware 10 is used for fixing the wire, and the upper end main reinforcement 15 is put on the hanger part 13. At this time, a load is applied to the reinforcing bar holding hardware 10 and it does not fall off.

最後に、残りの梁主筋１６とスターラップ筋１７を配筋して鉄筋組立作業は完了する。   Finally, the remaining beam main bars 16 and stirrup bars 17 are arranged to complete the rebar assembling work.

以上述べた実施形態では、鉄骨梁の側面に鉄筋コンクリート造の梁を一体化する場合について説明したが、本発明の鉄筋保持金物は鉄骨柱に壁筋を添わせるような、縦方向の鉄骨と鉄筋組との結合にも使用することができる。   In the embodiment described above, the case where the reinforced concrete beam is integrated with the side surface of the steel beam has been described. However, the reinforcing bar holding hardware according to the present invention has a vertical steel frame and a reinforcing bar that add a wall bar to the steel column. It can also be used in combination with pairs.

本発明の鉄筋保持金物の１実施形態を示す正面図である。It is a front view which shows one Embodiment of the reinforcing bar holding | maintenance hardware of this invention. 本発明の鉄筋保持金物の使用状態を示す縦断正面図である。It is a vertical front view which shows the use condition of the reinforcing bar holding | maintenance hardware of this invention. 本発明の鉄筋保持金物の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the reinforcement holding | maintenance metal fitting of this invention. 従来例を示す縦断正面図である。It is a vertical front view which shows a prior art example.

１… 梁のウエブ ２…ブラケット
３ …梁部の上主筋 ４… 肋筋
５ …梁部の下主筋 ６… 壁部の縦鉄筋
６ａ …フック ６ｂ… 定着長
７ …壁部の横鉄筋 ８…スラブ筋
９ …コンクリート
１０…鉄筋保持金物 １１…Ｕ字部
１１ａ…開口 １２…直線部
１３…ハンガー部 １４…鉄骨梁
１４ａ…上フランジ １４ｂ…ウエブ
１５…上端主筋
１６…残りの梁主筋 １７…スターラップ筋 DESCRIPTION OF SYMBOLS 1 ... Beam web 2 ... Bracket 3 ... Beam main upper bar 4 ... Reinforcing bar 5 ... Beam lower main bar 6 ... Wall vertical bar 6a ... Hook 6b ... Anchor length 7 ... Wall horizontal bar 8 ... Slab Reinforcing bar 9 ... Concrete 10 ... Reinforcing bar holding hardware 11 ... U-shaped part 11a ... Opening 12 ... Straight line part 13 ... Hanger part 14 ... Steel beam 14a ... Upper flange 14b ... Web 15 ... Top main bar 16 ... Remaining beam main bar 17 ... Stirrup muscle

Claims (2)

鉄骨を利用した鉄筋保持金物であり、鉄骨のフランジを挟持するＵ字部と、その開口端から折れ曲がり、鉄骨のウエブに当接する当接部と、この当接部から前記Ｕ字部に平行するように折れ曲がる直状のもので、鉄筋組への差し込みハンガー部とを連続的に１本の鉄筋で曲げ形成したことを特徴とする鉄筋保持金物。   Reinforcing bar holding hardware using a steel frame, a U-shaped part that sandwiches a flange of the steel frame, a contact part that is bent from an opening end thereof, and contacts a web of the steel frame, and is parallel to the U-shaped part from the contact part Reinforcing bar holding hardware characterized in that it is bent in a straight shape like this, and the hanger part inserted into the reinforcing bar set is bent continuously with one reinforcing bar. 鉄骨のウエブに当接する当接部は、鉄骨のフランジを挟持するＵ字部の開口端からほぼ直角に折れ曲がり、鉄骨のウエブに当接する直線部である請求項１記載の鉄筋保持金物。   The reinforcing bar holding hardware according to claim 1, wherein the abutting portion that abuts on the steel web is a straight portion that is bent at a substantially right angle from the open end of the U-shaped portion that sandwiches the flange of the steel frame and abuts on the steel web.
JP2009234803A 2009-10-09 2009-10-09 Rebar holding hardware Expired - Fee Related JP5254169B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163014U (en) * 1983-04-18 1984-10-31 株式会社　長谷川工務店 Jig for fixing beam main reinforcement
JPH03161638A (en) * 1989-11-17 1991-07-11 Misawa Homes Co Ltd Structure for installation of external wall panel to building
JP2003166312A (en) * 2001-11-29 2003-06-13 Tobishima Corp Mounting device for reinforcing material or bar stock
JP2004019143A (en) * 2002-06-13 2004-01-22 Yoshiyuki Shiragaki Cotter bar clamp for wide-flange beam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163014U (en) * 1983-04-18 1984-10-31 株式会社　長谷川工務店 Jig for fixing beam main reinforcement
JPH03161638A (en) * 1989-11-17 1991-07-11 Misawa Homes Co Ltd Structure for installation of external wall panel to building
JP2003166312A (en) * 2001-11-29 2003-06-13 Tobishima Corp Mounting device for reinforcing material or bar stock
JP2004019143A (en) * 2002-06-13 2004-01-22 Yoshiyuki Shiragaki Cotter bar clamp for wide-flange beam

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