JPH04120372A - Assembling method for pre-assembled steel beam reinforcing bars - Google Patents

Abstract

PURPOSE:To provide operability regardless of weather and facilitate loading, provisional placing, and transfer of pre-assembled steel beam reinforcing bars by placing outdoors a joint constituent member on a mobile table, moving it into a moistening preventive house, and installing thereon a pre-assemble member or members. CONSTITUTION:A device A used for assembling pre-assembly steel beam reinforcing bars is composed of a pre-fabrication 10 using a pillar C as a pre-assembly, a track 20 extending from this pre-fabrication, a wheel 30, and a table 40 for pre-assemble reinforcing bars A joint constituent member C is placed on this table 40. The table 40 is transported into the pre-fabrication 10, and pre-assemble member is mounted on the table to accomplish a pre-assembly, After completion of installing, the table 40 is moved to outside the pre-fabrication 10, and the pre-assemble steel beam reinforcing bars are carried out, loaded, or placed provisionally and transferred. This enables indoors operations even under bad weather and facilitates transfer operations such as loading.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used in a composite processing method of reinforcing bars and steel frames in which columns are made of reinforced concrete and beams are made of steel frames, and is used when the columns are manufactured in advance in a factory. This invention relates to a method for assembling pre-assembled steel reinforcing bars.

"Conventional technology" In recent years, in the construction method of buildings, due to the short construction period of steel frame construction and the low cost of reinforced concrete construction, the combined construction method of steel frames and reinforcing bars (R
The use of C3S construction method is increasing. In this composite construction method, the columns are manufactured in advance in a factory together with the beam joints,
It is constructed on-site, and is a construction method particularly suitable for large-scale stores, offices, and factories.

Therefore, in order to implement the RC3S construction method, steel frames,
Columns made of reinforcing bars and other pre-assembled components must be pre-assembled in the factory.

Conventionally, such pre-assembly is often carried out within the factory, but depending on the construction site, there is no factory nearby (
Especially in rural areas, there are many cases where there are no such factories. ), it may be necessary to rent the stockyard of an ironworks for production.

[Problems to be Solved by the Invention] However, since the above-mentioned pre-assembly is performed by welding, it is difficult to use a stockyard without a roof during rain or snow.
There was a problem in that it could only be welded at the stockyard, and therefore pre-assembly could not be done at the stockyard. Although the above problems can be solved by performing the pre-assembly work indoors, a considerable amount of height and space is required indoors to load and carry out the completed pre-assembled steel reinforcing bars, or to temporarily relocate them. .

The present invention has been made in view of the above circumstances, and its object is to enable pre-assembly to be carried out indoors with neither height nor space, even during rain or snowfall.
Another object of the present invention is to provide a method for assembling pre-assembled steel reinforcing bars in which the completed pre-assembled steel reinforcing bars can be loaded and carried out or temporarily relocated.

[Means for Solving the Problems] The gist of the invention as claimed in claim 1 is a method for assembling pre-assembled steel reinforcing bars made of joint component members, reinforcing bars and other pre-assembled members, the method of assembling pre-assembled steel reinforcing bars on a frame provided with a moving means. The joint component is placed in a predetermined position, and then the pedestal is moved into the moisture-proof body, the pre-assembled member is attached and pre-assembled on the pedestal, and then the pedestal is moved outside the moisture-proof body. A method for assembling pre-assembled steel reinforcing bars, characterized in that the pre-assembled steel reinforcing bars are manufactured by moving the pre-assembled steel reinforcing bars to a container and carrying out, loading, or temporarily relocating the pre-assembled steel reinforcing bars.

The gist of the invention as claimed in claim 2 is a method for assembling a pre-assembled steel reinforcing bar consisting of a joint component member, reinforcing bars and other pre-assembled members, which comprises: after placing the joint component component at a predetermined position on a frame; ,
A moisture-proof body provided with a moving means is moved so as to cover the pedestal, the reinforcing bars and other pre-assembled members of the pedestal are glued together with the shimguchi component, and then the upper part of the pedestal is opened. The method for assembling pre-assembled steel reinforcing bars is characterized in that the pre-assembled steel reinforcing bars are manufactured by moving the moisture proof body and carrying out and loading or temporarily relocating the pre-assembled steel reinforcing bars.

[Operations] The moisture proof body enables welding work in stockyards, etc. without roofs.

The moving means enables lifting work etc. outside the wet-proof body.

Therefore, the invention described in claim 1.2 enables pre-assembly work to be carried out indoors with neither height nor space during rain or snowfall, and the completed pre-assembled steel reinforcing bars can be loaded and carried out. Or make temporary relocation possible.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the component parts described in this example are not specifically described, and the scope of this invention is intended to be limited thereto. It's not, it's just an illustrative example.

First, a device used in the method for assembling pre-assembled steel reinforcing bars according to this embodiment (hereinafter simply referred to as "pre-assemble device J").

) will be explained using FIGS. 1 to 3.

As shown in FIG. 1, the pre-assembly device A includes a pre-fabricated fabric 10 (preservative body) for pre-assembling a column C used in a composite processing method, a track 20 extending from inside the brawler 10, and a track 2
It is generally composed of a mount 40 for pre-assembled reinforcing bars provided with wheels 30 for rolling over the reinforcing bars.

As shown in FIG. 1, when viewed in cross section in the vertical direction, the prefab 10 is a semicircular body with two sides perpendicular to the ground and one corner as the apex, with a pentagonal outline along with the ground surface. The apex is located vertically on the outside of the two tracks 20. Moreover, one side of the wife side is closed and the other side is open, and the open side is used as the entrance/exit 11.

The track 20 consists of two steel rails, and extends from the closed end side through the entrance/exit 11 to the outside.

The wheels 30 are made of steel, and are provided on the lower surface of the lower flange of each floor beam 41 at equal intervals, four on each side, eight in total.

The pre-assembled steel frame reinforcing bar frame 40 is shown in FIGS. 2(a) to 7.
As shown in FIG. 2 (d), two floor beams 41, eight horizontal members 42 installed on the side floor beams 41, and the space between the two floor beams 41 are covered. It consists of a floor material 43, and on its upper surface are a front support stand 50, a center support stand 60, and a rear support stand 7.
0 and a main reinforcing bar fixing stand 80. Both floor beams 41 are made of H steel with one side of the flange facing upward and the axial directions thereof being parallel to each other. The horizontal member 42 is made of H steel that passes through the upper part of the web of each floor beam 41 so that the upper surface of the upper flange contacts the lower surface of the upper flange of each floor beam 41, and has both ends protruding. The floor material 43 is made of striped steel.

The front support stand 50 includes a front support girder 51 located at the front edge of the pre-assembled steel reinforcing bar frame 4o, as shown in FIG. 2 to FIG. 4 supporting 51
The book legs 53 and the two stays 54 and the two front supports built on both the front support beams 51 are connected to the member 52, and the front bone is fixed to the member 52. It consists of a tool 55,
It supports one end of the column C. The front support spar 5
Reference numeral 1 is an H steel whose axial direction is the same as the longitudinal direction of the pre-assembled steel reinforcing bar frame 4o, and whose - flange faces upward.

Each of the legs 53 is made of H steel with the flange facing upward, two of which are hung in front of each edge of the pre-assembled steel reinforcing bar mount 40 in the front-rear direction at intervals of 1L'. be.

The two stays 54 are located on the sides of the two rear legs 53 among the four legs 53, and have their lower ends attached to the outermost edge of the pre-assembled steel reinforcing bar frame 40. It is an L-shaped steel whose upper end is fixed to the lower surface of the lower flange of the front support girder 51. The front support member 52 is provided on the upper surface of the lower flange of each of the front support beams 51 located above each of the legs 53.
Each of the front support girders 5 is arranged parallel to the longitudinal direction of the pre-assembled steel reinforcing bar frame 40 in a direction perpendicular to the longitudinal direction.
The lower end of the lower flange of 1 is fixed.

The jig 55 includes a fixing plate 56 for fixing the main reinforcing bar M, a frame 57 provided around the fixing plate 56, and five fixing legs 58 supporting the frame 57. It is. The fixing plate 56 has main reinforcing bar fixing holes 5 at equal intervals on the periphery.
6a is a square steel plate when viewed from the front. Note that the main reinforcing bar M is fixed using a fixing tool such as a nut. The frame body 57 is made of L-shaped steel and has a U-shape when viewed from the front. Each of the fixed legs 58 has an upper end fixed to the frame 57 and a lower end fixed to each central support beam 51.

The central support base 60 is shown in FIGS. 2(a) and 2(b).
And as shown in FIG. 2(d), a central support girder 61 located at the central edge of the pre-assembled steel reinforcing bar frame 40, and four legs 63 and 4 supporting the central support girder 61. The book stay 64 and the two central supports provided on the upper surface of each of the central support beams 61 so as to be movable in the longitudinal direction of each of the central support beams 61 are composed of the member 62. It supports The central support girder 61 has its axial direction facing the longitudinal direction of the pre-assembled steel reinforcing bar frame 40, one side of the - flange facing upward, and is connected to the upper flange in a longitudinal direction at a predetermined interval. It is H steel with bolt holes. Each of the leg parts 63 is made of H steel with a flange facing upward, and is vertically disposed in pairs at intervals in the front-rear direction in front of each edge of the pre-assembled steel reinforcing bar frame 40. The four stays 64 are located one on each side of the four legs 63, and have their lower ends connected to the ends of the horizontal member 42 and their upper ends connected to the lower flange of the center support 61. It is an L-shaped steel fixed to the bottom surface. Each of the central receivers is a member 62.
has one side of the - flange facing upward, and the lower flange has bolt holes provided at predetermined intervals in the longitudinal direction,
The H steel is shorter than the central support girder 61. It can be fixed by tightening bolts between the bolt holes and the bolt holes of the upper flanges of each central support girder 61, and can be moved by removing the bolts. Note that a ramp 66 is formed in each of the stays 64 by using three L-shaped steels 65. Further, in the figure, reference numeral 67 is a stopper.

The rear support stand 70 is shown in FIGS. 2(A) and 2(B).
As shown in FIG. Two rear supports are provided on the upper surface of the support beams 71 so as to be movable in the longitudinal direction of each of the rear support beams 71. The two rear supports are made of members 72 and support the joint component J. The rear support girder 71 has its axial direction facing the longitudinal direction of the pre-assembled steel reinforcing bar frame 40, one side of the - flange facing upward, and bolts connected to the upper flange in a longitudinal direction at predetermined intervals. It is H steel with holes. Two of the leg portions 73 are vertically disposed in front of each edge of the pre-assembled steel reinforcing bar frame 40 at intervals in the front-rear direction. - This is an H steel with one side of the flange facing upward. The eight stays 74 are located one on each side of the eight legs 73, with their lower ends attached to the ends of the horizontal member 42 and their upper ends attached to the lower surface of the lower flange of the rear support beam 71. It is an L-shaped steel that is fixed to. Each rear support member 72 is made of H steel shorter than the rear support girder 71 with one side of the negative flange facing upward, and has bolt holes in the lower flange 7. It can be fixed by tightening bolts between the bolt hole and the bolt hole of the upper flange of the rear support beam 71, and can be moved by removing the bolt. Note that each stay 74 has an L-shaped steel 75.
The cod and pu 76 are formed using eight pieces. Also,
In the figure, numeral 77 is a stopper.

The main reinforcing bar fixing stand 80 is shown in Fig. 2 (a) and Fig. 2 (b).
, as shown in FIG. 2(E) and FIG. 2(F), two construction members are fixed to the construction member 80 located on the front F side of the pedestal of both construction members 80. A jig 82,
It is provided with a main reinforcing bar abutting member 87 that abuts the end of the main reinforcing bar M, and supports the other end of the column C.

Both the construction members 81 have both ends connected to the rear support member 72.
It will be built between. It is made of H steel having a stepped portion in the center that is one step lower than both end portions, and connects the two connecting members 81a.

The jig 82, as shown in FIG. 2 (e),
It is provided with a fixing plate 83 for fixing, and a frame 84 provided around the fixing plate 83, to which a fixing member 86 is fixed. The fixing plate 83 is a square steel plate when viewed from the front, with main reinforcing bar fixing holes 83a provided at equal intervals on the periphery. Note that the main reinforcing bar M is fixed using a fixing tool such as a suyto. The frame 84 is made of L-shaped steel and has a U-shape when viewed from the front.

The main reinforcing bar abutting member 87 is supported by a fixed leg 85, as shown in FIG. The frame body has a rectangular outline when viewed from the front, and the end portion of the main reinforcing bar M is brought into contact with one side of the frame body.

Further, in this embodiment, a front hoop muscle mount 90,
Center hoop muscle mount 91 and rear hoop muscle mount 92
and a main reinforcing bar insertion trolley 100.

As shown in FIGS. 2(A) and 2(B), each of the hoop reinforcement carts 90, 91, and 92 is made of steel and has a rectangular parallelepiped outer shape on which the hoop reinforcement H is placed on the upper surface, Casters 93 are attached to the lower surfaces of the front hoop muscle mount 90 and the center hoop muscle mount 91 so as to be movable in the longitudinal direction.

The main reinforcing bar insertion trolley 100 is equipped with two main reinforcing bar M support bases 103 for supporting the main reinforcing bars M on the trolley 101, as shown in FIG. 3, and is movable on the track 20. . The trolley 101 has steel wheels 102 on its lower surface and has the same structure as the pre-assembled steel reinforcing bar frame 40. Each of the main reinforcing bars M support stands 103 is connected to the main reinforcing bar insertion trolley 1o. A thick steel plate 104 having a plurality of main reinforcing bar insertion holes 104a on the peripheral edge, located at the front part F and rear part B of the gantry shown in ○, and the two frames 105 that support them.
and a stay 106.

In the figure, the symbol W is a wire that binds the main reinforcing bars M.

Next, a method for assembling pre-assembled steel reinforcing bars will be explained.

First, as shown in FIG. 4(a), the prefabricated 10
The joint component J is placed on the pre-assembled steel reinforcing bar frame 40 located outside of the path shown in FIG. 4(a).

Next, as shown in FIG. 4(b), the pre-assembled steel reinforcing bar frame 40 is transferred into the prefab 10.

Next, as shown in FIG. 4(c), the anterior hoop muscle 9
0. Place the hoop muscles H on the central hoop muscle 91 and the rear hoop muscle mount 92, respectively. Then, the central hoop muscle 91 and the front hoop muscle 90 are inserted into the rear part B of the pedestal and installed at predetermined positions.

Next, as shown in FIG. 4(d), the main reinforcing bar insertion 100 holding the main reinforcing bars M is transferred from the front part F of the preassembled steel reinforcing bar mount 40 to the fixing plate 56.83. Main reinforcing bar fixing hole 56a (path shown in Figure 4 (d)), 8
Insert the main reinforcing bar M into 3a.

Next, both ends of the main reinforcing bar M are fixed using a fixing plate jig 55.82.
Further, predetermined portions are tied together with a wire W (the path shown in FIG. 4(d)).

Next, predetermined portions of the main reinforcing bar M1 joint component J and the like are welded.

Next, as shown in FIG. 4(E), the pre-assembled steel reinforcing bar pedestal 40 is transferred from the pedestal front part F to the outside of the prefab 10.

Next, the column C is lifted from the pre-assembled steel frame reinforcing bar frame 40 and transported to a predetermined location.

Pre-assembly work can be performed through the above steps.

Next, the function and effect of the pre-assembled steel reinforcing bar assembly method and the pre-assembled device A configured as above will be explained.

Welding work can be carried out during rain or snow, and since the track 20 and the frame 40 for pre-assembled steel reinforcing bars can be lifted outside the brake ab 10, welding work can be carried out even during rain or snow. In addition, the completed pre-assembled steel reinforcing bars can be loaded and carried out or temporarily relocated.

Furthermore, in this embodiment, the hoop reinforcements H are arranged using hoop reinforcement frames 90 and 91 with casters 93, so the reinforcement work is easier than when the hoop reinforcement frames 90 and 91 are not used. It can be done easily.

Moreover, the main reinforcing bar insertion trolley 10 running on the track 20
0 is used to arrange the main reinforcing bars M, the reinforcement work can be performed more easily than when the main reinforcing bar insertion trolley 100 is not used.

Further, since the central support stand 60 and the rear support stand 70 are movable, columns C can be manufactured according to various floor heights.

In addition, although the wheels 30 that move on the track 20 are used as a means of transportation, the scope of the present invention is not limited thereto, and other means such as rubber tires that do not require tracks may be used in the present invention. Any suitable material can be used to carry out the invention. In such a case, since a track is not required, the manufacturing cost of the pre-assembled device A can be reduced compared to the case of this embodiment.

Further, in this embodiment, the prefabricated material 10 was used as a moisture-proof body, but the present invention does not intend to limit the scope of the present invention to this, and the present invention may be used to prevent the column C from getting wet due to rain, snow, etc. Bye.

Furthermore, although the pre-assembled steel reinforcing bar frame 40 was driven manually, this is not intended to limit the scope of the present invention, and in the present invention, a power means may be provided and the frame may be driven by the power means. Ru. In such a case, the work effort can be reduced compared to the case of the above embodiment.

In the above embodiment, the frame 40 for pre-assembled steel reinforcing bars is moved, but this is not intended to limit the scope of the present invention, and in the present invention, for example, as shown in FIG. The prefab 10) may be mobile.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces effects as described below.

The waterproof structure enables welding work in stockyards without a roof, and the track and pedestal make it possible to lift loads outside the wetproof structure, so even during rain or snow, the height and width can be maintained. Pre-assembly work can be carried out indoors without
Moreover, the completed pre-assembled steel reinforcing bars can be loaded and carried out or temporarily relocated.

As a result, according to the present invention, compared to the prior art, the pre-assembly work period and the construction period can be shortened, and construction costs can be reduced.

[Brief explanation of drawings]

Figure 1 is a perspective view of the pre-assembly device, Figures 2 (a) to 2 (
Figure 2(a) is a plan view of a mount for pre-assembled steel reinforcing bars, FIG. 2(b) is a front view of the mount for pre-assembled steel reinforcing bars, and FIG. Figure 2 (C) is the same as Figure 2 (A).
Figure 2 (D) is a cross-sectional view taken along line a-C in Figure 2 (A).
Figure b, Figure 2 (E) is a CC sectional view of Figure 2 (A), Figure 2 (F) is a dd sectional view of Figure 2 (A), and Figure 3 is the main reinforcing bar insertion. Perspective view of the trolley, Figures 4(A) to 4(
E) is a process diagram, and FIG. 5 is a perspective view of a pre-assembly device according to another embodiment of the present invention. A. Pre-assembly device, C.. Pillar, J.. Shiguchi component, H..
Hoop reinforcement, M...main reinforcement, W wire F mount front,
B. - Rear part of the mount, 10. Brefab, 11. Entrance/exit, 20. Track, 3
0... Transportation means, 40... Frame for pre-assembled steel reinforcing bars, 50...
・・Front support stand, 60 Center support stand, 70・Rear support stand, 8o・Main reinforcing bar fixing stand, 90・Front hoop reinforcement stand,
91. Frame for center hoop reinforcement, 92. Frame for rear hoop reinforcement, 100 main reinsertion bar insertion trolley. Applicant Shimizu Construction Co., Ltd. Figure 2 (c) 57, Figure 2 Misaki) Figure 2 (Tsui Figure 2 (f)

Claims (2)

[Claims] (1) A method for assembling a pre-assembled steel reinforcing bar consisting of a joint component, reinforcing bars and other pre-assembled members, in which the joint component is placed at a predetermined position on a pedestal provided with a moving means, and then the pedestal is placed on the pedestal. is moved into the moisture-proof body, the reinforcing bars and other pre-assembled members are attached to the joint component members on the pedestal, and the pre-assembled members are pre-assembled, and then the pedestal is moved outside the moisture-proof body and the pre-assembled members are assembled. A method for assembling pre-assembled steel reinforcing bars, characterized in that the pre-assembled steel reinforcing bars are manufactured by carrying out and loading or temporarily relocating steel reinforcing bars. (2) A method for assembling a pre-assembled steel reinforcing bar consisting of a joint component, reinforcing bars and other pre-assembled members, in which after the joint component is placed at a predetermined position on a frame, a moving means is provided. The wet body is moved so as to cover the pedestal, the reinforcing bars and other pre-assembled members are pre-assembled on the pedestal by attaching the shikiguchi component, and then the barrier is moved so as to open the upper part of the pedestal. A method for assembling pre-assembled steel reinforcing bars, characterized in that the pre-assembled steel reinforcing bars are manufactured by moving a wet body and carrying out, loading, or temporarily relocating the pre-assembled steel reinforcing bars.