JP7036357B1 - Reinforcing bar construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing bar construction method capable of preventing a temporary assembly waiting time even if it takes a long time to work at a building site. SOLUTION: This reinforcing bar construction method includes a temporary assembling step of temporarily assembling a plurality of horizontal bars with a temporary assembling jig installed at a temporary assembling place to form a reinforcing bar unit 2, and a lifting machine via a hanging jig 3. The transfer jig 5 is lifted by the device, the reinforcing bar unit 2 is transferred from the temporary assembly tool to the transfer jig 5, and the transfer jig 5 is transferred to the temporary storage place S2 together with the reinforcing bar unit 2 by the lifting machine device. , A temporary placement process in which the temporary placement jig 6 is attached to the transfer jig 5 and the transfer jig 5 is temporarily placed together with the reinforcing bar unit 2 via the temporary placement jig 6, and the temporarily placed transfer jig 5 Is included together with the reinforcing bar unit 2 to the building site and the building process for performing the building work of the reinforcing bar unit 2. [Selection diagram] FIG. 5

Description

The present invention relates to a reinforcing bar construction method for a columnar structure or the like.

Conventionally, in the construction of columnar structures (for example, piers, deep foundation piles, etc.) (including tubular structures, etc.), it is installed at a temporary assembly site near the building site (places such as columnar structures). There is known a method of temporarily assembling a plurality of horizontal bars with a temporary assembly jig to form a reinforcing bar unit, transferring the reinforcing bar unit to a building site, and performing building work (bonding to vertical bars, etc.). ..

Here, various methods have been proposed for the transfer of the reinforcing bar unit. For example, in Patent Document 1, a temporary assembly jig is lifted together with a reinforcing bar unit by a lifting machine such as a crane via a lifting jig, transferred to a building site, and the reinforcing bar unit is connected to a main bar (vertical bar). , A method of removing the temporary assembly jig and returning it to the temporary assembly place is disclosed. The time until the temporary assembly jig is returned is the temporary assembly standby time.

Further, in Patent Document 2, the reinforcing bar unit is replaced from the temporary assembly jig on the transfer jig lifted by the lifting machine device via the lifting jig, and the transfer jig is built together with the reinforcing bar unit by the lifting machine device. A method of transferring to a place, connecting the reinforcing bar unit to the vertical bar, removing the transfer jig, and returning the rebar unit to the vicinity of the temporary assembly place is disclosed. In this method, the temporary assembly jig can be continuously used to form the next reinforcing bar unit for the temporary assembly work, so that the construction period can be shortened.

Japanese Unexamined Patent Publication No. 2000-104404 Japanese Patent No. 4150981

However, in Patent Document 1, after the temporary assembly jig is returned to the temporary assembly place or in Patent Document 2, the transfer jig is returned near the temporary assembly place, and then other construction work such as placing concrete at the construction place is performed. In some cases, it may take some time to transfer the reinforcing bar unit even after the temporary assembly work of the next reinforcing bar unit is completed. In that case, a temporary assembly waiting time occurs due to the time required for the construction work at the building site.

The present invention has been made in view of the above reasons, and an object thereof is to prevent a temporary assembly waiting time from occurring even if the construction work at the construction site takes a long time in the reinforcing bar construction method such as a columnar structure. It is to provide what can be done.

In order to achieve the above object, the reinforcing bar construction method according to claim 1 includes a temporary assembly process of temporarily assembling a plurality of horizontal bars with a temporary assembly jig installed at a temporary assembly site to form a reinforcing bar unit, and suspension. The transfer jig is lifted by the lifting machine device via the jig, the reinforcing bar unit is transferred from the temporary assembly jig to the transfer jig, and the transfer jig is temporarily mounted together with the reinforcing bar unit by the lifting machine device. A temporary placement step of transferring to a storage location, attaching the temporary placement jig to the transfer jig, and temporarily placing the transfer jig together with the reinforcing bar unit via the temporary placement jig, and the temporarily placed said. The transfer jig includes a build-in step of transferring the transfer jig together with the reinforcing bar unit to a build-in place and performing the build-in work of the reinforcing bar unit, and the transfer jig has a plurality of transfer columns. The temporary placement jig has a plurality of temporary placement supports, and the bottom plate portion of the temporary placement support has a flat bottom surface, and the size in plan view is larger than that of the lower end portion of the transfer support column. Largely, the remounting is performed after the reinforcing bar unit is held by the plurality of transfer columns, and the temporary placement is performed by placing each of the plurality of temporary support supports on the plurality of transfer columns. It is attached to each of the lower end portions of the body and is performed via the plurality of temporary placement supports .

The reinforcing bar construction method according to claim 2 is the reinforcing bar construction method according to claim 1 , wherein the transfer support column has a number of stages of transfer support column fittings protruding forward according to the reinforcing bar unit. The side wall portion of the temporary placement support at least surrounds the transfer column body below the transfer column fitting at the bottom.

The reinforcing bar construction method according to claim 3 is the reinforcing bar construction method according to claim 2 , wherein the transfer support column body is composed of two steel materials having a substantially U-shaped cross section. Both ends of the transfer column metal fitting mounting rod-shaped body to which the transfer column metal fittings are attached and the metal fittings for fixing them to the steel material do not protrude more than the two steel materials when viewed from the front.

The reinforcing bar construction method according to claim 4 is the reinforcing bar construction method according to any one of claims 1 to 3 , wherein the transfer jig is used together with the reinforcing bar unit by the lifting machine device or another lifting machine device. Transfer to the building site.

The reinforcing bar construction method according to claim 5 is the reinforcing bar construction method according to any one of claims 1 to 3 , wherein the transfer jig is used together with the reinforcing bar unit by the lifting machine device or another lifting machine device. It is placed on a vehicle, the vehicle moves to the vicinity of the building location, and the transfer jig is transferred from the vehicle to the building location together with the reinforcing bar unit by another lifting machine device.

According to the reinforcing bar construction method according to the present invention, even if the construction work at the building site takes a long time, the temporary assembly waiting time can be prevented from occurring.

It is a perspective view which shows the temporary assembly process of the reinforcing bar construction method which concerns on embodiment of this invention. The temporary assembly support body of the temporary assembly jig used in the above-mentioned reinforcing bar construction method is shown, where (a) is a front view and (b) is a right side view. The temporary assembly support body of the temporary assembly jig used in the above-mentioned reinforcing bar construction method is shown, (a) is a front view showing how the temporary assembly support metal fittings rotate upward, and (b) is a temporary assembly support. It is a right side view which shows how the metal fitting rotates upward. It is a perspective view which shows the time of remounting in the temporary placement process of the same-mentioned reinforcing bar construction method. The transfer strut body of the transfer jig used in the above-mentioned reinforcing bar construction method is shown. (A) is a front view when the horizontal bar retaining portion is opened, and (b) is a front view when the horizontal reinforcing bar retaining portion is opened. The right side view of the time, (c) is a cross-sectional view of the right side cut by the cut surface shown by AA when the lateral streak retaining portion is opened. The transfer strut body of the transfer jig used in the above-mentioned reinforcing bar construction method is shown. (A) is a front view when the horizontal bar retaining portion is closed, and (b) is a front view when the horizontal reinforcing bar retaining portion is closed. The right side view of the time, (c) is a cross-sectional view of the right side cut by the cut surface shown by AA when the lateral streak retaining portion is closed. It is a perspective view which shows the time of landing at the temporary place | place in the temporary place process of the same-mentioned rebar construction method. The temporary placement support of the temporary placement jig used in the above-mentioned reinforcing bar construction method is shown, in which (a) is a front view, (b) is a right side view, and (c) is a cut surface shown by BB. It is a cut right side view sectional view. The temporary placement support of the temporary placement jig used in the above-mentioned reinforcing bar construction method is shown, (a) is a front view when attached to the lower end of the transfer support column, and (b) is a transfer support column. It is a right side view when it is attached to the lower end part of a body, and (c) is the right side view sectional view cut by the cut surface shown by BB when it is attached to the lower end part of a transfer column body. It is a schematic diagram which shows the state before transfer of the transfer jig in the building process of the same-mentioned reinforcing bar construction method. It is a schematic diagram which shows the state after FIG. 7A in the same-mentioned reinforcing bar construction method. It is a schematic diagram which shows the state before transfer of the transfer jig of another example in the building process of the same-mentioned reinforcing bar construction method. It is a schematic diagram which shows the state after FIG. 8A in the same-mentioned reinforcing bar construction method. It is a schematic diagram which shows the state after FIG. 8B in the same-mentioned reinforcing bar construction method. It is a schematic diagram which shows the state after FIG. 8C in the same-mentioned reinforcing bar construction method.

Hereinafter, embodiments for carrying out the present invention will be described. The reinforcing bar construction method according to the embodiment of the present invention includes a temporary assembly step, a temporary placement step, and a build-in step.

In the temporary assembly process, as shown in FIG. 1, a plurality of horizontal bars 20 are temporarily assembled with the temporary assembly jig 1 installed at the temporary assembly location S1 to form the reinforcing bar unit 2. Each stage of the reinforcing bar unit 2 has horizontal reinforcing bars 20 formed in a shape corresponding to the columnar structure to be constructed. Or it may have a substantially circular shape. Although the reinforcing bar unit 2 has 6 stages in FIG. 1, the number of stages is not particularly limited.

The temporary assembly jig 1 (and the suspension jig 3 and the transfer jig 5 described later) are configured according to the reinforcing bar unit 2. In the temporary assembly jig 1, a plurality of temporary assembly support columns 10 are usually installed on the temporary assembly support base 11 (see FIG. 1). The temporary assembly support base 11 is, for example, a steel material such as H steel or wood. As shown in FIGS. 2A and 2A, the temporary assembly support column 10 has a number of stages of the temporary assembly support metal fittings 101 according to the reinforcing bar unit 2. The temporary assembly support body 10 is installed so that the front surface (front surface) of the temporary assembly support metal fitting 101 faces inward (see FIG. 1) or outward of the entire temporary assembly jig 1. In FIGS. 2A (a) and 2 (b) (and FIGS. 2B (a) and 2B (b) described later), the horizontal streaks 20 are indicated by broken lines. Further, in FIGS. 2A (a) and 2A (b) (and FIGS. 2B (a) and 2B (b) described later), the second to lower temporary assembly support metal fittings are the top temporary assembly support metal fittings. Since they are the same, reference numerals 101 and 101a are omitted.

When the reinforcing bar unit 2 is temporarily assembled, the temporary assembly support column 101 is in a state of protruding forward so that the horizontal reinforcement 20 can be supported from below, as shown in FIGS. 2A and 2A. At that time, a stopper 101a is provided so as not to rotate downward. The temporarily assembled support metal fittings 101 are as shown in FIGS. 2B and 2B when the temporarily assembled reinforcing bar unit 2 is transferred to the transfer jig 5 and ascended in the temporary placement step described in detail later. In addition, it can be pushed and rotated by the horizontal bar 20 rising from below so as not to interfere with the rising of the horizontal bar 20. The broken line with an arrow in FIGS. 2B (a) and 2B (b) indicates an increase in the horizontal streak 20.

In the temporary placement process, first, the transfer jig 5 is lifted by a lifting mechanical device 4 such as a crane via the hanging jig 3. Then, at the temporary assembly location S1, as shown in FIG. 3, the reinforcing bar unit 2 is held by a plurality of transfer support columns 50 described later in the transfer jig 5, and then the reinforcing bar unit 2 is moved from the temporary assembly jig 1. Transfer to the transfer jig 5.

The suspension jig 3 includes, for example, a plurality of transfer support support suspension wires 31, a suspension frame 32, a plurality of suspension frame suspension wires 33, and a wire holder 34 (see FIG. 3). ).
Each transfer strut suspension wire 31 is connected to a transfer strut 50, which will be described later, of the transfer jig 5. Further, the upper end portions of the plurality of transfer support support suspension wires 31 are connected to the suspension frame body 32. Each suspension frame body suspension wire 33 is connected to the suspension frame body 32 from above. The upper ends of the plurality of suspension frame body suspension wires 33 are collectively held by the wire holder 34. The lifting machine device 4 (omitted in FIG. 3) is a transfer jig via a wire holder 34, a plurality of suspension frame body suspension wires 33, a suspension frame body 32, and a plurality of transfer support column body suspension wires 31. 5 can be lifted. The word "wire" includes not only ordinary wires but also chains and the like.

The suspension frame body 32 is mainly composed of a plurality of long frame members 32a that are connected to each other by metal fittings or welding to form a predetermined shape, and the transfer support support suspension wire 31 is connected to the predetermined position. A metal fitting for connecting the metal fitting for connecting the suspension frame body suspension wire 33 is attached. The frame member 32a is a steel material such as H steel.

The transfer jig 5 is configured to have a plurality of transfer support columns 50 as shown in FIGS. 4A (a) to (c) and 4B (a) to (c). As will be described in detail later, the plurality of transfer support columns 50 are arranged so as to be stable when the reinforcing bar unit 2 is remounted and raised and when it is temporarily placed.

The transfer column body 50 has a long transfer column body 501. The transfer column main body 501 can be configured, for example, by arranging two steel materials 501a and 501b having a substantially U-shaped cross section back to back with each other at intervals, connecting and fixing them. For the coupling of the steel materials 501a and 501b, a transfer column fitting mounting rod-shaped body 501c or the like to which the transfer column fitting 503 described later is attached can be used. Then, both ends of the transfer column metal fitting mounting rod-shaped body 501c and the metal fittings for fixing them to the steel materials 501a and 501b (and the reverse rotation prevention pin 504 described later) are more than the two steel materials 501a and 501b when viewed from the front. It can be prevented from popping out (ie, hidden by two 501a, 501b steel materials) (see FIGS. 4A and 4B).

The transfer column body 50 has a transfer column holding metal fitting 502 at the upper part of the transfer column body 501 so as to be connected to and held by the transfer column body suspension wire 31.

Further, the transfer strut body 50 has the number of stages of the transfer strut metal fittings 503 according to the reinforcing bar unit 2. In FIGS. 4A (a) to (c) and FIGS. 4B (a) to 4B (c), the horizontal streaks 20 are indicated by broken lines. Further, in FIGS. 4A (a) to (c) and 4B (a) to (c), the transfer column fittings from the second to the bottom from the top are the same as the transfer column fittings on the top. Therefore, the reference numerals 501c, 503, 503a, 503b, 504, 505, and 506 are omitted.

The transfer column fitting 503 projects forward so as to hold the horizontal bar 20. The transfer column metal fitting 503 has a horizontal bar support portion 503a and a horizontal bar retaining portion 503b. The lateral muscle support portion 503a projects forward so that the lateral muscle 20 can be supported from below. The horizontal bar support portion 503a can be fixed to the transfer column metal fitting mounting rod-shaped body 501c.

The lateral streak retaining portion 503b can be rotated in the vertical direction, and can be opened (see FIGS. 4A (a) to (c)) and closed (see FIGS. 4B (a) to (c)). be. The lateral muscle support portion 503a is inserted under the lateral muscle 20 in a state where the lateral muscle retaining portion 503b is open, and then the lateral muscle retaining portion 503b is closed. By closing the lateral muscle retaining portion 503b, the lateral muscle 20 can be prevented from coming off from the lateral muscle support portion 503a. When a predetermined number of lateral bar retaining portions 503b are all closed, the reinforcing bar unit 2 is held by the plurality of transfer support columns 50.

The lateral streak retaining portion 503b can be prevented from rotating in the opposite direction (that is, upward) to that when it is closed by inserting the reverse rotation prevention pin 504 into the through hole 505 in the closed state. .. As the reverse rotation prevention pin 504, a lock pin or the like can be used. In order to use the reverse rotation prevention pin 504 quickly or to prevent it from being lost, the reverse rotation prevention pin 504 and the transfer column main body 501 can be connected by a reverse rotation prevention pin wire 506. .. Although the reverse rotation prevention pin wire 506 is schematically drawn in FIGS. 4A (b) and 4B (b), the length and the hanging method are arbitrary.

Further, it is preferable that the transfer strut body 50 has a shorter portion of the transfer strut body main body 501 below the transfer strut metal fitting 503 at the bottom. Then, as will be described later, when the transfer jig 5 is lowered when the reinforcing bar unit 2 is connected to the vertical bar or the like at the building location S3, the transfer is performed when the vertical position of the reinforcing bar unit 2 is close to the concrete foundation surface or the like. The lower part of the support body 501 can be made less likely to get in the way.

In the temporary placement step, after the reinforcing bar unit 2 is held by a plurality of transfer support columns 50, the reinforcing bar unit 2 is transferred from the temporary assembly jig 1 to the transfer jig 5. Then, the transfer jig 5 is raised together with the reinforcing bar unit 2. At this time, as described above, since the temporary assembly support bracket 101 of the temporary assembly jig 1 can rotate upward, it does not interfere with the horizontal bar 20 rising from below (FIG. 2B (a), FIG. See (b)).

When the reinforcing bar unit 2 is transferred from the temporary assembly jig 1 to the transfer jig 5, the transfer jig 5 is then transferred together with the reinforcing bar unit 2 to the temporary storage place S2 by the lifting machine device 4, as shown in FIG. , The temporary placement jig 6 is attached to the transfer jig 5, and the transfer jig 5 is temporarily placed together with the reinforcing bar unit 2 via the temporary placement jig 6. The temporary storage place S2 is leveled or paved so that it can be temporarily stored stably.

The temporary placement jig 6 is configured to have a plurality of temporary placement supports 60 as shown in FIGS. 6A (a) to 6 (c) and FIGS. 6B (a) to 6 (c). In detail, the temporary placement is performed by attaching each of the plurality of temporary placement supports 60 to each of the lower end portions of the plurality of transfer support columns 50 and via the plurality of temporary placement supports 60.

The temporary support body 60 has a bottom plate portion 60a and a side wall portion 60b integrally formed, and also has a mounting pin 601.

The bottom plate portion 60a has a flat bottom surface so that it can be stably and temporarily placed. The size of the bottom plate portion 60a is larger than that of the lower end portion of the transfer support column 50 in a plan view, and further larger than that of the side wall portion 60b described later. Further, the bottom plate portion 60a is usually substantially square in a plan view.

The side wall portion 60b has a size capable of surrounding the lower end portion of the transfer support column 50. It is preferable that the side wall portion 60b at least surrounds the lower transfer column body 50 from the lowermost transfer column fitting 503. Then, even if the portion of the transfer column body body 501 below the bottom transfer column fitting 503 is shortened as described above, it can be stably temporarily placed.

In FIGS. 6A (a) to 6 (c) and FIGS. 6B (a) to 6 (c), the side wall portion 60b has a height that surrounds most of the transfer column fitting 503 in the second stage from the bottom. .. If the side wall portion 60b is made higher than necessary, it becomes difficult to attach the temporary placement support 60 to the transfer support column 50 due to its height and weight.

Further, as described above, the transfer column body 501 is composed of two steel materials 501a and 501b having a substantially U-shaped cross section, and both ends of the transfer column metal fitting mounting rod-shaped body 501c and these are made into steel materials 501a and 501b. When the metal fittings to be fixed do not protrude from the two steel materials 501a and 501b when viewed from the front, the temporary support body 60 is attached to the transfer column body 50, and after that, the transfer column metal fitting mounting rod-shaped body 501c. Since both ends of the above and the metal fittings for fixing them to the steel materials 501a and 501b can be prevented from coming into contact with the temporary placement support 60, it is easy to attach and can be stably temporarily placed.

The side wall portion 60b has the entire front surface (FIGS. 6A (a) to (c) and FIGS. 6B (a) to (c) so that the transfer column fitting 503 projects forward even when attached to the transfer column body 50. )) Or partly opened. At the lower part of the opened portion, a front lower side wall portion 60c forming a part of the side wall portion 60b can be provided.

Between the bottom plate portion 60a and the side wall portion 60b, a side reinforcing portion 60d having a substantially right-angled trapezoidal shape or a substantially right-angled triangular shape is provided so as to counter the shaking of the transfer support column 50 during temporary placement. It is preferable to be able to do so.

The temporary support body 60 and the transfer support column 50 are provided with through holes 602 and 507 (see FIG. 4A and the like) through which the mounting pins 601 pass. In order to prevent the temporary support 60 from coming off from the transfer support 50, the mounting pin 601 is prevented from coming off through the through hole 602 of the temporary support 60 and the through hole 507 of the transfer support 50. Locked. As the mounting pin 601, a lock pin or the like can be used. Further, in order to use the mounting pin 601 quickly or to prevent it from being lost, the mounting pin 601 and the side wall portion 60b can be connected by a mounting pin wire 603. Although the mounting pin wire 603 is schematically drawn in FIGS. 6A (b) and 6B (b), the length and the hanging method are arbitrary.

The temporary storage jig 6 can usually be attached to the transfer support column 50 before landing on the temporary storage location S2.

In the temporary assembly place S1, the reinforcing bar unit 2 is transferred from the temporary assembly jig 1 to the transfer jig 5, and the transfer jig 5 is raised together with the reinforcing bar unit 2. In the temporary assembly jig 1, the next reinforcing bar is used. It is possible to temporarily assemble the unit 2.

Further, in the temporary storage place S2, a plurality of transfer jigs 5 can be temporarily placed together with the reinforcing bar unit 2. In this case, a plurality of transfer jigs 5 are prepared, and the next transfer jig 5 is lifted by the hanging jig 3 and the lifting machine device 4 after the temporary placement is completed, and the next reinforcing bar unit 2 is temporarily placed. It is possible to perform the placement process.

Next, in the building process, the temporarily placed transfer jig 5 is transferred to the building location S3 together with the reinforcing bar unit 2 to perform the building work of the reinforcing bar unit 2. The building-in work includes a work of connecting the reinforcing bar unit 2 to a vertical bar (for example, a setup bar, a guide bar, a main bar, etc.) at the building place S3. After the joining work, the transfer jig 5 is removed from the reinforcing bar unit 2 and returned to the temporary storage place S2, the temporary assembly place S1, or the like.

The method of transferring the transfer jig 5 temporarily placed in the building process to the building location S3 together with the reinforcing bar unit 2 is as follows.

When the building location S3 is close to the temporary storage location S2 and the temporary assembly location S1, as shown in FIGS. 7A and 7B, the transfer jig 5 temporarily placed by the lifting machine 4 used in the temporary placement process is used. It is possible to lift it together with the reinforcing bar unit 2 and transfer it to the building location S3. The temporary placement jig 6 is removed from the transfer jig 5 when the transfer jig 5 is raised. In addition, in FIG. 7A (and FIG. 8A described later), the case where two transfer jigs 5 (and the reinforcing bar unit 2) are temporarily placed in the temporary storage place S2 is illustrated. Further, in FIGS. 7A and 7B (and FIGS. 8C and 8D described later), the case where the columnar structure at the building site S3 is a pier is exemplified.

Further, when the building place S3 is a little away from the temporary assembly place S1, it is possible to use a lifting machine device different from the lifting machine device 4 in the temporary placing process in the building process.

When the building location S3 is far from the temporary storage location S2, as shown in FIGS. 8A to 8D, the transfer is temporarily placed by the lifting machine device 4 (or the above-mentioned other lifting machine device) used in the temporary placing process. The jig 5 is mounted on the vehicle 7 together with the reinforcing bar unit 2, the vehicle 7 moves to the vicinity of the building location S3, and the transfer jig 5 is built from the vehicle 7 together with the reinforcing bar unit 2 by another lifting mechanical device 4'. It can be transferred to location S3. The temporary placement jig 6 is attached to the transfer jig 5 until the transfer jig 5 is mounted on the vehicle 7 together with the reinforcing bar unit 2, and the transfer jig 5 is lifted by the lifting machine device 4'. When it is done, it is removed from the transfer jig 5. For the lifting machine device 4', a hanging jig 3'which is different from the lifting jig 3 may be used, or the hanging jig 3 may be mounted on the vehicle 7 and used. Further, a plurality of transfer jigs 5 (and reinforcing bar units 2) may be mounted on the vehicle 7 depending on its size.

By providing the temporary assembly process, temporary placement process, and building process described above, the temporary assembly work can be performed independently of the building work, so even if the work at the building location S3 takes time, the temporary assembly standby is possible. You can save time. Further, when the temporary assembly of the reinforcing bar unit 2 is wrong and it is found at the temporary storage place S2 or the building place S3, the reinforcing bar unit 2 is placed in the temporary storage place S2 until the temporary assembly jig 1 of the temporary assembly place S1 becomes empty. It is also possible to temporarily place it, and if it becomes empty, transfer it to the temporary assembly place S1 and correct it with the temporary assembly jig 1.

Although the embodiments of the present invention have been described above, the present invention is not limited to those described in the embodiments, and various design changes can be made within the scope of the matters described in the claims.

1 Temporary assembly jig 10 Temporary assembly support base 101 Temporary assembly support base 101a Stopper 2 Reinforcing bar unit 20 Horizontal reinforcement 3, 3'Hanging jig 31 Transferred column body Suspension wire 32 Suspension frame body 32a Frame member 33 Suspension Frame suspension wire 34 Wire holder 4, 4'lifting machine device 5 Transfer jig 50 Transfer strut body 501 Transfer strut body main body 501a, 501b Steel material of transfer strut body body 501c Transfer strut metal fitting mounting rod-shaped body 502 Transfer strut holding metal fittings 503 Transfer strut metal fittings 503a Horizontal bar support part 503b Horizontal bar disengagement prevention part 504 Reverse rotation prevention pin 505 Reverse rotation prevention pin through hole 506 Reverse rotation prevention pin wire 507 Mounting pin for temporary support Through hole 6 Temporary mounting jig 60 Temporary mounting support 60a Bottom plate 60b Side wall 60c Front lower side wall 60d Side reinforcement 601 Mounting pin 602 Through hole for mounting pin of temporary support 603 Mounting pin wire 7 Vehicle S1 Temporary assembly place S2 Temporary storage place S3 Building place

Claims (5)

A temporary assembly process to form a reinforcing bar unit by temporarily assembling multiple horizontal bars with a temporary assembly jig installed at the temporary assembly site.
The transfer jig is lifted by the lifting machine device via the lifting jig, the reinforcing bar unit is transferred from the temporary assembly jig to the transfer jig, and the transfer jig is mounted together with the reinforcing bar unit by the lifting machine device. A temporary placement process of transferring to a temporary storage place, attaching the temporary placement jig to the transfer jig, and temporarily placing the transfer jig together with the reinforcing bar unit via the temporary placement jig.
The building process of transferring the temporarily placed transfer jig together with the reinforcing bar unit to the building location and performing the building work of the reinforcing bar unit, and
Including
The transfer jig has a plurality of transfer columns and has a plurality of transfer columns.
The temporary placement jig has a plurality of temporary placement supports and has a plurality of temporary placement supports.
The bottom plate portion of the temporary placement support has a flat bottom surface, and is larger in size than the lower end portion of the transfer support column in a plan view.
The remounting is performed after the reinforcing bar unit is held by the plurality of transfer columns.
The temporary placement is a reinforcing bar construction method in which each of the plurality of temporary placement supports is attached to each of the lower end portions of the plurality of transfer columns and is performed via the plurality of temporary placement supports . In the reinforcing bar construction method according to claim 1 ,
The transfer strut body has a number of stages of transfer strut metal fittings protruding forward according to the reinforcing bar unit.
The side wall portion of the temporary placement support is a reinforcing bar construction method that at least surrounds the transfer column body below the transfer column fitting at the bottom. In the reinforcing bar construction method according to claim 2 ,
In the transfer strut body, the transfer strut body main body is composed of two steel materials having a substantially U-shaped cross section, and both ends of the transfer strut metal fitting mounting rod-shaped body to which the transfer strut metal fitting is attached and them. A reinforcing bar construction method in which the metal fittings for fixing the steel material to the steel material do not protrude more than the two steel materials when viewed from the front. In the reinforcing bar construction method according to any one of claims 1 to 3 ,
A reinforcing bar construction method in which the transfer jig is transferred together with the reinforcing bar unit to the built-in place by the lifting machine device or another lifting machine device. In the reinforcing bar construction method according to any one of claims 1 to 3 ,
The transfer jig is mounted on the vehicle together with the reinforcing bar unit by the lifting machine device or another lifting machine device, the vehicle moves to the vicinity of the building site, and the transfer jig is further used by another lifting machine device. A method of constructing a reinforcing bar, in which the machine is transferred from the vehicle to the built-in place together with the reinforcing bar unit.

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