JP4150981B1 - Reinforcing bar construction method by transfer of temporary assembly rebar unit - Google Patents

Reinforcing bar construction method by transfer of temporary assembly rebar unit Download PDF

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JP4150981B1
JP4150981B1 JP2007106517A JP2007106517A JP4150981B1 JP 4150981 B1 JP4150981 B1 JP 4150981B1 JP 2007106517 A JP2007106517 A JP 2007106517A JP 2007106517 A JP2007106517 A JP 2007106517A JP 4150981 B1 JP4150981 B1 JP 4150981B1
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JP2008223458A (en
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昌之 宗清
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【課題】 大型柱状構造物の鉄筋施工の仮組み作業及び建て込み作業の待機時間を無くして連続して作業を行い、時間の短縮による施工工期の短縮及び低コストで施工すること。
【解決手段】 鉄筋受け金具を回動可能に複数枢着する仮組治具体を所用数配設する仮組治具と鉄筋保持受け金具を回動可能に複数枢着する移載治具体を所用数配設する移載治具であって、上記仮組行程から釣支移送する行程に移行する時、該仮組治具体の鉄筋受け金具に仮組みされた鉄筋ユニットを移載治具体の鉄筋保持受け金具に載せ換えする工程を有する手段により施工する。
【選択図】図1
PROBLEM TO BE SOLVED: To perform a continuous work without a waiting time for a temporary assembling work and an erection work of a large columnar structure, to shorten the construction work period by shortening the time and to perform construction at a low cost.
SOLUTION: A temporary assembly jig for arranging a plurality of temporary assembly jig bodies for pivotally attaching a plurality of reinforcing bar brackets and a transfer jig body for pivoting a plurality of reinforcement holding brackets are used. A plurality of transfer jigs, wherein when moving from the temporary assembly process to the fishing support transfer process, the reinforcing bar unit temporarily assembled in the reinforcing bar receiving metal fitting of the temporary assembly jig body Construction is performed by means having a step of replacing the holding bracket.
[Selection] Figure 1

Description

本発明は、大型柱状構造物の鉄筋ユニットを仮組治具から移載治具に載せ換えて建て込み位置に移載施工する仮組鉄筋ユニットの載せ換え移載による鉄筋施工方法に関する。  TECHNICAL FIELD The present invention relates to a reinforcing bar construction method by transfer and transfer of a temporarily assembled reinforcing bar unit in which a reinforcing bar unit of a large columnar structure is transferred from a temporary assembly jig to a transfer jig and transferred to a built-in position.
従来、鉄筋の仮組み施工法は、地上にて横筋(5)を横筋吊り具(b)に複数本掛けわたし、その横筋吊り具(b)をクレーンで吊上げ、横筋受け具(a)まで移動させ該横筋受け具(a)の横筋受(1)に移し替え、一側の横筋(5a)と継手(10)により連結した後、縦筋(3)に結束する工法のコンクリート構築における横筋配筋工法およびその横筋配筋装置が提案されている。(例えば、特許文献1参照)  Conventionally, the rebar temporary assembly method is to hang a plurality of horizontal bars (5) on the horizontal bar hoist (b) on the ground, lift the horizontal bar hoist (b) with a crane, and move to the horizontal bar holder (a). The horizontal bar arrangement (1) of the horizontal bar holder (a) is transferred to the horizontal bar (1), connected to the horizontal bar (5a) on one side by the joint (10), and then tied to the vertical bar (3). A muscle construction method and a lateral reinforcement arrangement device have been proposed. (For example, see Patent Document 1)
また、地上の施工現場において、仮組治具に横筋を所定間隔に仮組みする仮組工程と、該仮組みした仮組体を建て込み位置に移載する移送工程と、予め該建て込み位置に略鉛直方向に立設施工した縦筋に結合する結合工程を有する工法の鉄筋の施工方法及びそれに用いる鉄筋の仮組み治具が提案されている。(例えば、特許文献2参照)  In addition, in the construction site on the ground, a temporary assembling step of temporarily assembling the horizontal bars on the temporary assembling jig at a predetermined interval, a transferring step of transferring the temporarily assembled temporary assembly to the erected position, and the erected position in advance Have proposed a method of constructing reinforcing bars having a joining process for joining to vertical bars that are erected in a substantially vertical direction, and a reinforcing bar temporary assembly jig used therefor. (For example, see Patent Document 2)
特開昭61−172967号公報  JP-A 61-172967 特開2000−104404号公報  JP 2000-104404 A
従来のコンクリート構築における横筋配筋工法およびその横筋配筋装置と鉄筋の施工方法及びそれに用いる鉄筋の仮組み治具は、共に地上にて横筋を所定の横筋吊り具又は仮組治具に仮組みし、その仮組みした状態の横筋吊り具又は仮組治具をクレーンで建て込み位置に移載すると言う、仮組みの後、吊上げ移載、縦筋との結合、そして最初に戻って仮組みするサイクル工程で行われ、この横筋を仮組みした横筋吊り具又は仮組治具を吊上げ移動する工法は、地上にての仮組みで安全であり、施工効率がよい事が記載されているが、これら従来の仮組み位置と建て込み位置での作業は、その作業の前工程の作業を待って、その作業に入るためその間、双方の作業にそれぞれ待機時間が発生し、時間の無駄となっていた。  In the conventional concrete construction, the horizontal bar arrangement method, the horizontal bar arrangement device and the reinforcing bar construction method, and the reinforcing bar temporary assembly jig are temporarily assembled on the ground to the predetermined horizontal bar suspension or temporary assembly jig. Then, the horizontal hanger or temporary assembly jig in the temporarily assembled state is transferred to the built-in position with a crane. After temporary assembly, lifting and transferring, coupling with the vertical bars, and returning to the beginning to temporarily assemble However, it is described that the method of lifting and moving the horizontal bar suspension or temporary assembly jig temporarily assembled with the horizontal bars is safe and temporary construction on the ground, and the construction efficiency is good. These conventional work in the temporary assembly position and the built-in position wait for the work in the previous process of the work and enter the work. It was.
そして、その仮組み、吊上げ移載、縦筋との結合、また最初に戻って、仮組みするサイクル工程は、地上での仮組みの後、その仮組み作業員は次の仮組みまで待機する必要があり、また、建て込み作業員は、不安定な足場上で次の仮組み鉄筋が吊上げられて来るまでの時間、待機しているため無駄となっており、翻って、時間と作業員の作業効率を考えて、仮組み作業員が、次の移載先の建て込み位置まで移動して結合作業に入るとすると建て込み位置まで上がったり降りたりの非常に疲労の激しい作業となり、建て込み初期の場合は、比較的対応しやすいが、高く建ち上がると安全面からも問題であった。  Then, the temporary assembly, lifting transfer, coupling with the vertical bars, and returning to the beginning, the cycle process of temporary assembly, after temporary assembly on the ground, the temporary assembly worker waits until the next temporary assembly It is necessary, and the construction worker is wasted because it is waiting for the next temporary rebar to be lifted on the unstable scaffolding. Considering the work efficiency, if the temporary assembly worker moves to the next transfer destination erection position and enters the joining work, it will be very fatigued work that goes up and down to the erection position, In the early days, it was relatively easy to deal with, but when it was built high, it was a problem from the safety aspect.
また、仮組みするのに予備の横筋吊り具又は仮組治具を用意して、地上作業員と建て込み位置作業員とに分れてする場合を考えると、吊上げ移載、縦筋との結合した後、地上にて予備の横筋吊り具又は仮組治具と付替え交換とそれを再配置する必要があり、さらに仮組み鉄筋の重量から、吊上げ移載する時の安全面を考えると横筋吊り具又は仮組治具を頑強なものを二組用意する必要があり、その分のコスト及び輸送、保管スペースなどコスト高になる要因が多かった。  Also, if you prepare a spare horizontal bar suspension tool or temporary assembly jig for temporary assembly and divide it into ground workers and built-in workers, After joining, it is necessary to replace and replace with a spare horizontal bar suspension or temporary assembly jig on the ground, and consider the safety aspect when lifting and transferring from the weight of the temporary assembly reinforcing bar. It was necessary to prepare two strong sets of horizontal bar suspenders or temporary assembly jigs, and there were many factors such as cost, transportation, storage space, and so on.
さらに、在来工法の鉄筋を下から足場を上に伸して組立て行く工法と比較して、上記特許文献1及び特許文献2の工法の方が施工効率は良いが、こと待機時間に関しては、工期短縮における改善余地が多分にあり、仮組み作業員及び建て込み作業員の待機時間を無くし、作業時間の効率化がもとめられ、さらに横筋吊り具又は仮組治具などの仮組み治具のコスト低減が求められていた。  Furthermore, compared with the construction method that assembles the rebar of the conventional construction method from the bottom up the scaffold, the construction method of Patent Document 1 and Patent Document 2 is better in construction efficiency, but with respect to the waiting time, There is plenty of room for improvement in shortening the construction period, eliminating the waiting time for temporary assembly workers and construction workers, and improving work time efficiency. Cost reduction was sought.
本発明は、上記課題を有効に達成するための解決手段として、仮組行程から釣支移送する行程に移行する時、鉄筋の支持受け金具を略水平支持位置から上方に反転して仮組治具体の前面側から退避するように複数枢着する仮組治具体を支柱架台に所用数、立設固定して配設した仮組治具と、鉄筋の保持受け金具を略水平支持位置から上方に反転して移載治具体の前面側から退避するように複数枢着する移載治具体であって、移載治具体を下降と上昇させることによって該仮組治具体の支持受け金具に仮組みされた鉄筋ユニットを保持受け金具に載せ換えする工程により、仮組み、移送及び縦筋との結合する作業の仮組み作業員及び建て込み作業員の待機時間を無くし連続作業が可能としている。As a means for effectively achieving the above-mentioned problems, the present invention reverses the support bracket of the reinforcing bar upward from the substantially horizontal support position when moving from the temporary assembly process to the process of transferring the fishing support. The number of temporary assembly jig bodies pivoted so as to be retracted from the specific front side, the number of temporary assembly jigs arranged and fixed upright on the column base, and the holding brackets for reinforcing bars are moved upward from the substantially horizontal support position. A plurality of transfer jig bodies pivoted so as to be retracted from the front side of the transfer jig body , and the transfer jig body is lowered and raised to temporarily attach the support jig of the temporary assembly jig body. The process of replacing the assembled reinforcing bar unit with the holding metal fitting eliminates the waiting time of the temporary assembling worker and the erection worker for the temporary assembling, transferring, and connecting with the vertical reinforcing bars, thereby enabling continuous work.
本発明は、上述したそれぞれの手段によって有効な効果が得られるもので、特に、施工現場近傍の地上にて鉄筋を仮組治具に仮組みして鉄筋ユニットを形成する仮組行程と、仮組みした鉄筋ユニットを建て込み位置に釣支移送する行程と、建て込み位置に立設施工された縦筋に該釣支移送された鉄筋ユニットを結合する行程を有する施工方法において、鉄筋の支持受け金具を略水平支持位置から上方に反転して仮組治具体の前面側から退避するように複数枢着する仮組治具体を支柱架台に所用数、立設固定して配設した仮組治具と、
鉄筋の保持受け金具を略水平支持位置から上方に反転して移載治具体の前面側から退避するように複数枢着する移載治具体を吊り架台に所用数、釣支して配設する移載治具であって、上記仮組行程から釣支移送する行程に移行する時、移載治具体を下降と上昇させることによって、該仮組治具体の支持受け金具に仮組みされた鉄筋ユニットを保持受け金具に載せ換えする工程により施工することで、
鉄筋仮組み施工の各工程の、仮組み、載せ換え吊上げ移載、縦筋との結合の一連の作業であって、その仮組みから載せ換え吊上げ移載、縦筋との結合までの各作業の間の仮組み作業員及び建て込み作業員は、繰返し連続して作業が出来、よって従来のような待機時間が無く、連続作業による大幅な施工工期の短縮が達成できることで、大幅なコスト削減もできる。
In the present invention, effective effects can be obtained by each of the above-described means. In particular, a temporary assembly process in which a reinforcing bar unit is temporarily assembled on a temporary assembly jig on the ground in the vicinity of a construction site, and a temporary assembly process is performed. In a construction method having a process of transferring the assembled reinforcing bar unit to the support position and a process of connecting the rebar unit transferred to the vertical support line installed vertically at the installation position. Temporary assembly treatment in which a plurality of temporary assembly jig bodies pivoted so as to be retreated upward from a substantially horizontal support position and retracted from the front surface side of the temporary assembly jig body are fixedly installed on the column base. Ingredients,
A plurality of transfer jig bodies pivotally mounted so as to be retracted from the front side of the transfer jig body by reversing the holding bars of the reinforcing bars upward from the substantially horizontal support position and arranged to support the required number on the suspension base. When the transfer jig is moved from the temporary assembly process to the fishing support transfer process, the rebar is temporarily assembled to the support bracket of the temporary assembly jig body by lowering and raising the transfer jig body. By installing the unit in the process of replacing the holding bracket,
It is a series of work of temporary assembly, repositioning lifting transfer and connection with vertical bars in each process of temporary rebar assembly construction, each work from temporary assembly to transfer lifting transfer and connection with vertical bars Temporary assembly workers and erection workers in between can work repeatedly and continuously, so there is no waiting time as in the past, and the construction work period can be greatly shortened by continuous work, thus drastically reducing costs You can also.
また、該仮組治具は、地上で固定されて使用するため、鉄筋ユニット重量に耐える程度の強度があれば良く、簡易な治具で使用でき、移載治具のように吊上げ移載するための安全面を考慮した強度を持たせた頑強な治具でなくとも良いので、移載治具と仮組治具を分ける事で、該治具の製作コスト低減が図れ、さらに支柱架台に固定される該仮組治具体に鉄筋ユニットが仮組みされる事で、がぶり厚が正確に設定された鉄筋ユニットを得る事ができる。
よってこれらのことから実用的効果が著大である。
Also, since the temporary assembly jig is used fixed on the ground, it is sufficient if it has enough strength to withstand the weight of the reinforcing bar unit, it can be used with a simple jig, and it is lifted and transferred like a transfer jig. For this reason, it is not necessary to use a robust jig with sufficient strength in consideration of safety, so by separating the transfer jig and the temporary assembly jig, the production cost of the jig can be reduced , and the support frame can be By reinforcing the reinforcing bar unit temporarily to the fixed temporary assembly jig body, it is possible to obtain a reinforcing bar unit in which the fogging thickness is accurately set.
Therefore, the practical effect is remarkable from these things.
なお上記施工工期に於いて、試験的に施工した事例を参考までに記載すれば、大型鉄筋コンクリート構造物の鉄筋組立の規模を概ね14人の作業員で七日間を要する程度の施工規模を想定した在来工法の手組みにより行った条件で比較すると、本願の施工法で試験的に施工した時、同条件の施工規模で四人の作業員により一日で施工が完了し、大幅な工期短縮となった。  In addition, in the above construction period, if an example of trial construction was described for reference, the scale of rebar assembly of a large reinforced concrete structure was assumed to be a scale of construction that would require seven days with approximately 14 workers. Comparing with the conditions of the conventional construction method, when constructed experimentally with the construction method of the present application, construction was completed in one day by four workers with the same scale of construction, greatly reducing the construction period It became.
本発明の実施例を図面に基づいて説明すると、図1において、仮組治具1から移載治具2へ後述する鉄筋ユニット13の載せ換え状態の要部を示すもので、全体としては、図6と図7に示し、詳細は後述する。  An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the main part of a rebar unit 13 to be described later is transferred from the temporary assembly jig 1 to the transfer jig 2, and as a whole, 6 and 7 and will be described in detail later.
そこで、図1に示す仮組治具1は、施工される鉄筋の柱状構造物に対応した略四角状に組まれた支柱架台3と該支柱架台3に立設される仮組治具体4を有し、該仮組治具体4は、支柱体ベース5を介して板で平面略T字状に形成して立設され、また該仮組治具体4の前面側に所定間隔で支持受け金具6、6、…を図示では6カ所、仮組治具体4の前面より突出させて略水平支持位置から上方に反転して仮組治具体4の前面側から退避するように枢着している。Therefore, the temporary assembly jig 1 shown in FIG. 1 includes a column base 3 assembled in a substantially square shape corresponding to a columnar structure of a reinforcing bar to be constructed, and a temporary assembly jig body 4 standing on the column base 3. The temporary assembling jig body 4 is erected by being formed in a plane substantially T-shaped with a plate through a support body base 5 and is supported on the front side of the temporary assembling jig body 4 at a predetermined interval. 6 are projected from the front surface of the temporary assembly jig body 4 so as to be inverted from the substantially horizontal support position so as to be retracted from the front surface side of the temporary assembly jig body 4. .
また、図1に示す該移載治具2は、上記仮組治具1の平面形状に略対応した吊り架台7に接続金具8を介して釣支する移載治具体9を有し、該吊り架台7は、図7に示すように、H鋼で形成(図示では方形状)し、また該移載治具体9は、面が対向する板状で形成される板状支柱体10と該対向する板状の間で保持受け金具11を略水平支持位置から上方に反転して移載治具体9の前面側から退避するように枢着すると共に該保持受け金具11に保持押え金具12を枢着して一組とし、該保持受け金具11、11、…を図示では6カ所、所定間隔で板状支柱体10の前面で保持できるように突出させて反転するように設けている。Further, the transfer jig 2 shown in FIG. 1 has a transfer jig body 9 that supports a suspension base 7 substantially corresponding to the planar shape of the temporary assembling jig 1 via a connection fitting 8. As shown in FIG. 7, the suspension base 7 is formed of H steel (in the drawing, a square shape), and the transfer jig body 9 includes a plate-like column body 10 that is formed in a plate shape whose surfaces face each other, and the The holding bracket 11 is pivoted so as to be reversed from the substantially horizontal support position and retracted from the front side of the transfer jig body 9 between the opposing plate shapes, and the holding presser 12 is attached to the holding bracket 11. The holding brackets 11, 11,... Are provided at six locations in the figure so as to protrude and invert so that they can be held on the front surface of the plate-like column 10 at predetermined intervals.
而して、上述した仮組治具体4を細説すると図2、図3及び図5に於いて、上述平面略T字状に形成し、板状の支持受け金具6を該仮組治具体4の前面より突出させて略水平支持位置から上方に反転して仮組治具体4の前面側から退避するように枢着し、該突出部分の上部に後述する鉄筋ユニット13を支持する支持受け部14を凹状に形成すると共に下部に支持受け回動止部15を形成している。Thus, when the above-described temporary assembly jig body 4 is described in detail, in FIG. 2, FIG. 3 and FIG. 5, it is formed in the above-described substantially plane T shape, and the plate-like support bracket 6 is connected to the temporary assembly jig body. 4 is protruded from the front surface of 4 and inverted upward from a substantially horizontal support position so as to be retracted from the front surface side of the temporary assembly jig body 4, and a support receiver for supporting a reinforcing bar unit 13 described later on the upper portion of the protruding portion. The portion 14 is formed in a concave shape, and the support receiving rotation stop portion 15 is formed in the lower portion.
なお、図5の15aは、仮組治具体4の前面より奥側に支持受け金具6が反転したとき、回動止部15が仮組治具体4の前面より突出して鉄筋ユニット13の上昇を邪魔しないように、回動止部15が反転退避可能に嵌り込むように形成された凹所である。In FIG. 5, 15 a shows that when the support bracket 6 is reversed from the front surface of the temporary assembly jig body 4, the rotation stopper 15 protrudes from the front surface of the temporary assembly jig body 4, and the reinforcing bar unit 13 is raised. It is a recess formed so that the rotation stop part 15 is fitted so that it can be reversed and retracted .
また、上述した移載治具体9を細説すると図2、図3及び図4に於いて、上述保持受け金具11は、板状支柱体10の前面より突出する部分の上部に鉄筋ユニット13を保持する保持受け部16を凹状に形成すると共に板状支柱体10のその背面側に当接するように回動止バランス部17を突出する反対側に形成し、また図4に示すように該保持受け金具11の枢着部の上部近傍に保持押え金具12を枢着している。  Further, when the transfer jig body 9 described above is described in detail, in FIG. 2, FIG. 3 and FIG. 4, the holding bracket 11 has a reinforcing bar unit 13 at the upper part of the portion protruding from the front surface of the plate-like column body 10. The holding receiving portion 16 to be held is formed in a concave shape, and the rotation stop balance portion 17 is formed on the opposite side so as to abut on the back side of the plate-like support column 10, and as shown in FIG. A holding presser 12 is pivotally mounted in the vicinity of the upper portion of the pivotally mounted portion of the receiving bracket 11.
そして、該回動止バランス部17は、保持受け金具11の背面側に平面略T字状になるように形成され、保持受け部16に鉄筋ユニット13を保持するなど、保持受け金具11が前面に回動して板状支柱体10の前面より突出した時、板状支柱体10の背面側に当接して、該保持受け金具11を略水平状態に支持することで鉄筋ユニット13を保持可能とし、また背面側に反転した時、その状態を保持する程度のバランス重量で、前面側又は背面側のどちらかに位置する。Then,該回Dotome balance unit 17 is formed to be flat, substantially T-shaped on the back side of the holding receiving metal 11, the holding parts 16, etc. hold the rebar unit 13, holding the receiving metal 11 is front The reinforcing bar unit 13 can be held by supporting the holding bracket 11 in a substantially horizontal state by abutting the back side of the plate-like column body 10 when it is pivoted to protrude from the front surface of the plate-like column body 10. In addition, when it is reversed to the back side, it is positioned on either the front side or the back side with a balance weight that maintains that state.
また、上記保持押え金具12は、側面かぎ爪状に形成して保持受け金具11と共に鉄筋ユニット13を上下で挟んで保持できるように、保持受け金具11を挟持状に枢着すると共に上述回動止バランス部17と同様に前面側又は背面側のどちらかに位置するように回動する。  Further, the holding presser metal 12 is formed in a side claw shape so that the holding bar 11 is pivotally attached to the holding bar 11 so as to hold the reinforcing bar unit 13 with the holding bar 11 vertically. It rotates so that it may be located in either the front side or the back side like the stop balance part 17.
而して、このような構成で、所定の柱状構造物を鉄筋で組立施工する時、図6に示すように、鉄筋の柱状構造物に対応した略四角状に組まれた支柱架台3に仮組治具体4を所定の位置に8カ所立設して仮組治具1を構成し、該仮組治具1に仮組治具体4、4,…の支持受け金具6、6、…に鉄筋ユニット13を支持させ、本実施例では該鉄筋ユニット13の外周側に帯筋13a、13a、…と各辺に平行して配設される巾止筋13b、13b、…とで構成される。  Thus, when a predetermined columnar structure is assembled and constructed with rebars in such a configuration, as shown in FIG. 6, a temporary support frame 3 assembled into a substantially square shape corresponding to the columnar structure of rebars is temporarily installed. The temporary assembly jig 1 is constructed by standing 8 assembly jig bodies 4 at predetermined positions, and the temporary assembly jig bodies 4 are supported by the support brackets 6, 6,. The reinforcing bar unit 13 is supported, and in this embodiment, the reinforcing bar unit 13 is composed of band bars 13a, 13a,... .
また、この仮組みされた鉄筋ユニット13は、予め、がぶり厚を考慮して鉄筋ユニット13を仮組みできるように、支柱架台3に仮組治具体4、4,…を所定のがぶり厚に対応するように各配置して固定され、該仮組治具体4、4,…に鉄筋ユニット13が仮組みされる事で、がぶり厚が正確に設定された鉄筋ユニット13を得る事ができる。  In addition, the temporarily assembled reinforcing bar unit 13 is preliminarily provided with a predetermined overlay thickness on the column base 3 so that the reinforcing bar unit 13 can be temporarily assembled in consideration of the overlay thickness. It is possible to obtain a reinforcing bar unit 13 in which the fogging thickness is set accurately by temporarily arranging and fixing the reinforcing bar unit 13 to the temporary assembly jig bodies 4, 4,. it can.
そして、帯筋13aと巾止筋13bを組合せて、ユニット化された鉄筋ユニット13を一段として、図1に示す仮組治具1の仮組治具体4に各段同様に図示では六段組立、なお図中、鉄筋ユニット13は、最下段のみに図示しており、これは載せ換え移載を明確に説明するため、各構成の位置関係を示すもので、一段のみの図示で説明し、実施工は、帯筋13aと巾止筋13bを組合せてユニット化された鉄筋ユニット13を六段同時に移載治具体9に載せ換え移載する。  Then, the reinforcing bar unit 13 formed as a unit is combined with the band bars 13a and the stop bars 13b, and the temporary assembly jig body 4 of the temporary assembly jig 1 shown in FIG. In addition, in the figure, the reinforcing bar unit 13 is shown only in the lowermost stage, and this shows the positional relationship of each component in order to clearly explain the transfer and transfer. The execution work is to transfer and transfer the reinforcing bar units 13 unitized by combining the band bars 13a and the stop bars 13b onto the transfer jig body 9 simultaneously in six stages.
そこで、該仮組治具体4から移載治具体9に載せ換え移載は、図1に示すように、クレーン18等で移載治具2を釣支して、該移載治具2の移載治具体9を仮組治具体4の上方側面に矢印に示すように下降させ、図2及び図3に示すように、移載治具体9の保持受け金具11の下面に仮組治具体4に支持される鉄筋ユニット13が当接し、さらに降下させる事で鉄筋ユニット13に押されるように該保持受け金具11と保持押え金具12が背面側に反転する。  Accordingly, the transfer from the temporary assembly jig body 4 to the transfer jig body 9 is carried out by supporting the transfer jig 2 with a crane 18 or the like as shown in FIG. The transfer jig body 9 is lowered to the upper side surface of the temporary assembly jig body 4 as shown by the arrow, and the temporary assembly jig body is placed on the lower surface of the holding bracket 11 of the transfer jig body 9 as shown in FIGS. The holding bar 11 and the holding presser 12 are reversed to the back side so that the reinforcing bar unit 13 supported by 4 abuts and is further lowered to be pressed by the reinforcing bar unit 13.
そして、その状態のまま鉄筋ユニット13をやり過ごした位置で一旦下降を停止させ、保持受け金具11を前方に回動させた後、移載治具2をクレーン18等で上昇させることで支持受け金具6に支持される鉄筋ユニット13を該保持受け金具11が受取り掛止させ、その状態で再び上昇を一時停止し、図4に示すように、保持押え金具12を矢印で示すように回動させて保持受け金具11と共に鉄筋ユニット13を保持させ、図中19は、回動止ピン19で、該回動止ピン19は、板状支柱体10を貫通させて保持押え金具12の回動を止めて確実に保持させ、クレーン18等で移載中に鉄筋ユニット13の脱落を防止する。  In this state, the lowering is temporarily stopped at the position where the reinforcing bar unit 13 is passed over, the holding bracket 11 is rotated forward, and then the transfer jig 2 is lifted by the crane 18 or the like, thereby supporting the bracket. The holding bracket 11 receives and holds the reinforcing bar unit 13 supported by 6 and temporarily stops rising again in this state, and the holding presser 12 is rotated as shown by an arrow as shown in FIG. The rebar unit 13 is held together with the holding bracket 11. In the figure, reference numeral 19 denotes a rotation stop pin 19, and the rotation stop pin 19 penetrates the plate-like column body 10 to rotate the holding presser bracket 12. Stop and hold securely, and prevent the rebar unit 13 from falling off during transfer by the crane 18 or the like.
このようにして上記保持押え金具12の回動を止めて確実に保持させた状態で、移載治具2をクレーン18等で上昇させると、図5に示す矢印のように、鉄筋ユニット13が水平位置にある支持受け金具6を次々と反転方向に押上げ、点線矢印で示すように反転させて通過して上昇し、仮組治具体4から移載治具2に載せ換え吊上げが完了し、図7に示すような状態で所定の施工場所となる建て位置に移載する。When the transfer jig 2 is lifted by the crane 18 or the like in the state in which the rotation of the holding presser 12 is stopped and securely held in this way, the rebar unit 13 is moved as shown by the arrow in FIG. The support brackets 6 in the horizontal position are pushed up one after another in the reversing direction, reversed as shown by the dotted arrows, passed and lifted, and the temporary assembly jig body 4 is transferred to the transfer jig 2 and the lifting is completed. In the state shown in FIG. 7, the product is transferred to a building position that is a predetermined construction place.
上述のように、仮組治具1に配筋して鉄筋ユニット13を組立、移載治具2に載せ換えて移載するため、移載中から地上にて鉄筋ユニット13を仮組治具1に組立、建て位置では、移載されてきた鉄筋ユニット13を縦筋に結束する作業を個別で行う事ができ、それらの作業が同時進行して進められる。  As described above, the reinforcing bar unit 13 is assembled and the reinforcing bar unit 13 is assembled and transferred to the transfer jig 2 for transfer. In the assembly / construction position, the work of binding the transferred reinforcing bar unit 13 to the vertical bars can be performed individually, and these work can proceed simultaneously.
また、このように建て込み位置の予め立設された縦筋に、位置合せしながら鉄筋ユニット13を上部から下降させて挿入結合させるため、近年、耐震構造で使用される鉄筋組み形状が、四角状に溶接形成されたもの、また一本もので左右端を引っかけ形状に成形されるものなどがあり、これを縦筋に施工する場合、帯筋など縦筋の最上部から挿入して縦筋に掛合わす必要があり、この上から挿入することが、本実施例の施工そのものであり理想的に対応して、耐震構造に対応した鉄筋組みができる。  Further, in order to insert and couple the reinforcing bar unit 13 by lowering from the upper part while aligning it with the vertical bars set up in advance in this way, in recent years, the reinforcing bar assembly shape used in the earthquake resistant structure is a square. There is one that is welded into a shape, or one that is formed into a shape that hooks the left and right ends, and when constructing this on the vertical bar, insert it from the top of the vertical bar, such as a band, It is necessary to engage with the above, and insertion from above is the construction itself of the present embodiment, ideally corresponding to the reinforcing bar assembly corresponding to the earthquake-resistant structure.
このことの意味は、従来工法では、縦筋の高さが高いので、一本ものの鉄筋を上から挿入できず、2本の鉄筋を左右双方から縦筋に引っかけるようにして該2本の鉄筋を結束して繋ぐ工法が一般的で、この工法では耐震強度が低くかった。  This means that in the conventional method, the height of the vertical bars is high, so that one rebar cannot be inserted from above, and the two bars are hooked on the vertical bars from both the left and right sides. The method of tying together is generally used, and this method has low seismic strength.
なお、ユニット化された鉄筋ユニット13の段数が、六段とした実施例を示しているが、これは、作業員の平均化された略胸の高さに準じて決められたもので、作業上最も楽な姿勢で作業効率を図る目的で決められ、段数については特にこだわる事はない。  In addition, although the example in which the number of stages of the unitized reinforcing bar unit 13 is six is shown, this is determined according to the average chest height averaged by the workers. It is determined for the purpose of improving work efficiency with the most comfortable posture, and there is no particular attention to the number of steps.
また、上記鉄筋ユニット13の段数が、六段とした実施例の各段とのピッチ寸法は、大型柱状構造物の鉄筋施工設計により決められた所定の寸法に各配置され、施工済の縦筋に移載配置され、そのまま移載治具2に支持された状態で、該縦筋に結束する事で鉄筋施工設計通に組立てられ。  In addition, the pitch dimension of each stage of the embodiment in which the number of stages of the reinforcing bar unit 13 is six is arranged in a predetermined dimension determined by the reinforcing bar construction design of the large columnar structure, and the installed vertical bars. In the state where it is transferred and arranged and supported by the transfer jig 2 as it is, it is assembled to the reinforcing bar construction design by binding to the longitudinal bars.
本発明の実施例の要部の正面図である。  It is a front view of the principal part of the Example of this invention. 本発明の実施例の要部を拡大した正面図である。  It is the front view which expanded the principal part of the Example of this invention. 本発明の実施例の要部を拡大した平面図である。  It is the top view to which the principal part of the Example of this invention was expanded. 本発明の実施例の移載治具体9の要部を拡大した側面図である。  It is the side view to which the principal part of the transfer jig | tool body 9 of the Example of this invention was expanded. 本発明の実施例の仮組治具体4の要部を拡大した側面図である。  It is the side view to which the principal part of the temporary assembly jig body 4 of the Example of this invention was expanded. 本発明の仮組治具1に鉄筋ユニット13を配筋した状態を示す平面図である。  It is a top view which shows the state which arranged the reinforcing bar unit 13 to the temporary assembly jig 1 of this invention. 本発明の移載治具2に鉄筋ユニット13を載せ換え釣支して移載する状態を示す側面図である。  It is a side view which shows the state which mounts and transfers the reinforcing bar unit 13 on the transfer jig 2 of the present invention.
符号の説明Explanation of symbols
1 仮組治具
2 移載治具
3 支柱架台
4 仮組治具体
6 支持受け金具
9 移載治具体
11 保持受け金具
12 保持押え金具
13 鉄筋ユニット
DESCRIPTION OF SYMBOLS 1 Temporary assembling jig 2 Transfer jig 3 Support stand 4 Temporary assembling jig body 6 Support receiving bracket 9 Transfer jig body 11 Holding receiving bracket 12 Holding press fitting 13 Reinforcing bar unit

Claims (1)

  1. 施工現場近傍の地上にて鉄筋を仮組治具に仮組みして鉄筋ユニットを形成する仮組行程と、仮組みした鉄筋ユニットを建て込み位置に釣支移送する行程と、建て込み位置に立設施工された縦筋に該釣支移送された鉄筋ユニットを結合する行程を有する施工方法において、鉄筋の支持受け金具を略水平支持位置から上方に反転して仮組治具体の前面側から退避するように複数枢着する仮組治具体を支柱架台に所用数、立設固定して配設した仮組治具と、
    鉄筋の保持受け金具を略水平支持位置から上方に反転して移載治具体の前面側から退避するように複数枢着する移載治具体を吊り架台に所用数、釣支して配設する移載治具であって、上記仮組行程から釣支移送する行程に移行する時、移載治具体を下降と上昇させることによって、該仮組治具体の支持受け金具に仮組みされた鉄筋ユニットを保持受け金具に載せ換えする工程を有することを特徴とした仮組鉄筋ユニットの載せ換え移載による鉄筋施工方法。
    Temporary assembly process in which reinforcing bars are temporarily assembled on a temporary assembly jig on the ground near the construction site to form a reinforcing bar unit, a process of transferring the temporarily assembled reinforcing bar unit to a built-in position, and a standing position at the built-in position. In the construction method having the process of joining the rebar unit transferred to the fishing support to the installed vertical bars, the support brackets of the reinforcing bars are reversed upward from the substantially horizontal support position and retracted from the front side of the temporary assembly jig body. A temporary assembly jig that is arranged in a fixed manner, and a plurality of temporary assembly jig bodies that are pivotally attached to each other.
    A plurality of transfer jig bodies pivotally mounted so as to be retracted from the front side of the transfer jig body by reversing the holding bars of the reinforcing bars upward from the substantially horizontal support position and arranged to support the required number on the suspension base. When the transfer jig is moved from the temporary assembly process to the fishing support transfer process, the rebar is temporarily assembled to the support bracket of the temporary assembly jig body by lowering and raising the transfer jig body. A reinforcing bar construction method by replacing and transferring a temporarily assembled reinforcing bar unit, comprising a step of replacing the unit with a holding bracket.
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CN102758524A (en) * 2011-04-27 2012-10-31 五冶集团上海有限公司 Fabricating and mounting method of benzene hydrogenation engineering steel bar
CN104963465A (en) * 2015-07-07 2015-10-07 山东万斯达建筑科技股份有限公司 Lattice structure steel bar connector and construction method of lattice structure steel bar connector
CN105863272A (en) * 2016-05-31 2016-08-17 中建海峡建设发展有限公司 Sliding type floor steel bar distribution device
CN105863271A (en) * 2016-05-31 2016-08-17 中建海峡建设发展有限公司 Floor reinforcing steel bar laying device
CN105926950A (en) * 2016-06-21 2016-09-07 天元建设集团有限公司 Steel bar measurement positioning device and construction method thereof
JP2018100589A (en) * 2018-02-07 2018-06-28 東急建設株式会社 Basic assembly steel bar construction method

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CN103452322B (en) * 2013-09-06 2014-09-03 青岛林川工程技术咨询有限公司 Device for ensuring horizontal spacing of reinforcing steel bars and use method of device
JP6369870B2 (en) * 2015-08-26 2018-08-08 東急建設株式会社 Reinforcing bar assembly equipment

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Publication number Priority date Publication date Assignee Title
CN102758524A (en) * 2011-04-27 2012-10-31 五冶集团上海有限公司 Fabricating and mounting method of benzene hydrogenation engineering steel bar
CN104963465A (en) * 2015-07-07 2015-10-07 山东万斯达建筑科技股份有限公司 Lattice structure steel bar connector and construction method of lattice structure steel bar connector
CN105863272A (en) * 2016-05-31 2016-08-17 中建海峡建设发展有限公司 Sliding type floor steel bar distribution device
CN105863271A (en) * 2016-05-31 2016-08-17 中建海峡建设发展有限公司 Floor reinforcing steel bar laying device
CN105863272B (en) * 2016-05-31 2017-11-24 中建海峡建设发展有限公司 Slidingtype floor bar installation aiding device
CN105926950A (en) * 2016-06-21 2016-09-07 天元建设集团有限公司 Steel bar measurement positioning device and construction method thereof
JP2018100589A (en) * 2018-02-07 2018-06-28 東急建設株式会社 Basic assembly steel bar construction method

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