JP2009106033A - Apparatus and method for supporting laid object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for supporting an laid object which enables the same work as a rack for a laid object to be mounted on a wall surface, making use of a columnar structure of a building, without having to use a lifting system for a space portion. <P>SOLUTION: The apparatus and the method for supporting an laid object are configured, such that a support arm having a horizontal member for supporting a laid object, such as, a cable is mounted, in an overhung manner, on a beam device, extending astride in between the plurality of columnar structures, and having two horizontal beams coupled through a jointing member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a laying object support device and a supporting method for laying long laying objects such as cables for electric power and control signals, various pipes and ducts between devices such as sewage treatment plants and various panels, for example, In particular, the present invention relates to a laying object support device and a support method that are installed in a space portion where there is no wall surface or the like to which a laying object can be attached.

  Conventionally, a cable rack for supporting a cable as an example of this type of long laying object is installed by attaching a bracket with a horizontal member on the wall surface, or in a space portion without a wall surface to which the cable rack can be attached. When installing a cable rack, a method of hanging from a ceiling portion or the like is generally employed (see, for example, Patent Document 1).

JP-A-9-84238 (FIGS. 3 and 4)

  However, installation of a cable rack by a hanging method from a ceiling portion or the like provided in a conventional space portion has many problems as shown below as compared with a wall-mounted cable rack.

  1) Anchor placement (drilling, hammering work) on the ceiling for attaching all screw suspension bolts to the ceiling is an upward work, and the work posture becomes harsh and may cause construction failure.

  2) Generally, a support bracket is passed between a pair of suspension bolts, and a cable rack is installed on the support bracket. However, it takes time to turn the bolts to adjust the vertical position of the support bracket, and cable racks are installed in multiple stages. In this case, even if the width of the cable rack is different, it is necessary to lengthen all the support brackets so that the maximum width of the cable rack can be attached, resulting in waste of materials.

  3) It is necessary to prepare the suspension bolts with different lengths depending on the height of the ceiling, and the suspension bolts have sufficient strength against vertical gravity loads, but the lateral force Therefore, when the ceiling height is high, it is necessary to provide a steady rest or the like, and there is a great difference in materials and work time, so it is difficult to make a work plan. If a cable rack is installed near the ceiling in order to avoid this, the position of the cable rack becomes too high, making it difficult to perform installation work and cable laying work.

  4) Since all cable rack installation work and cable laying work are performed between suspension bolts, it is not possible to use long cable racks, cable laying work is difficult to perform, and work efficiency is reduced. Damage to the outer surface of the cable.

  5) It is necessary to rearrange the scaffolding and install another scaffolding for each work of hanging bolt construction, rack mounting, and cable laying. Temporary suspension scaffolds for cable laying work may be attached to the cable rack support, but the suspension bolts are vulnerable to bending. It is also necessary to install a stop.

  On the other hand, the wall-mounted cable rack also has the following problems as compared to the hanging type.

  1) Since cable laying work cannot be performed from the wall surface side of the cable rack, a space for installing a scaffold or the like is necessarily required in front of the cable rack attached to the wall surface.

  2) When a cable is lowered from the cable rack to equipment installed on the floor, it must be lowered from the front side, not from the wall surface side of the cable rack.

  The present invention has been made to solve the above-described problems, and its purpose is to use a columnar structure such as a pillar of a building without using a suspension method even in a space portion. Thus, it is to obtain a laying object supporting apparatus and a supporting method capable of performing construction equivalent to wall mounting.

  The laying object support device according to the present invention extends between a plurality of columnar structures, is supported by the columnar structures, and is cantilevered by the beam devices to support the laying objects. A laying object support apparatus comprising a support arm.

  The laying object support method according to the present invention includes a step of attaching a support arm for supporting a laying object to the beam device in a cantilever manner, a step of attaching a support fitting to a plurality of columnar structures, and the support arm is attached. A laying object support method comprising the steps of: attaching the beam device to the support fitting; and arranging a laying object on the support arm.

  According to the present invention, the laying object support device extends between the plurality of columnar structures and is supported by the columnar structures in a cantilever manner, and the laying object is supported by the beam device. Since the supporting arm for supporting is provided, the front side of the lateral member is open, and a long laying object rack can be used, and the laying work laying operation is very easy. In addition, when work such as cable laying is not possible from the front side, it is possible to work from the beam device side, and it is also possible to lower the laying material over the beam device to equipment installed on the floor surface. It is.

  The laying object support method includes a step of attaching a support arm that supports the laying object to the beam device in a cantilever manner, a step of attaching a support bracket between a plurality of columnar structures, and the beam to which the support arm is attached. Since it includes a step of attaching the device to the support bracket and a step of placing a laying object on the support arm, the assembly work of the laying object support device at a high place can be reduced, and the construction is facilitated. Object support work is easy.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 when the laying object support device of the present invention is applied to cable support will be described with reference to FIG. 1 and FIGS. In FIG. 1, the laying object support device extends between the first and second columnar structures 1 and 2 spaced apart from each other, such as between a plurality of columns, and the first and second columnar structures 1 and 2. 2 is provided with a beam device 3 supported by 2. The beam device 3 includes a plurality of, for example, first and second transverse beams 4 and 5 that are spaced apart from each other and a connecting member 6 that couples the first and second transverse beams 4 and 5 to each other. ing. The laying object support device also includes a support arm 7 that is supported by the beam device 3 in a cantilever manner and supports a cable 25 (see FIG. 11) that is a laying object.

  As shown in FIGS. 1 and 2, the support arm 7 includes first and second lateral members 8 and 9 that are attached to the connecting member 6 of the beam device 3 in a cantilever manner and extend perpendicularly from the connecting member 6. I have. In the illustrated example, as shown in FIG. 1, four support bracket assemblies 24 shown in FIG. 2 constituted by one connecting member 6 and two transverse members 8 and 9 are arranged side by side and bolts are attached to the transverse beams 4 and 5. It is attached by etc. The connecting member 6 and the support arm 7, that is, the first and second lateral members 8 and 9 are angle members having an L-shaped cross section, and the connection member 6 and the first and second lateral members 8 and 9 are connected to each other. Reinforcing stays 10 are provided between them.

  Each of the cross beams 4 and 5 of the beam apparatus 3 is supported by a support fitting 11 attached to the first and second columnar structures 1 and 2, respectively. As shown in FIG. 1 and FIG. 3, each support metal fitting 11 is an angle member having an L-shaped cross section, and two outer planes perpendicular to each other are attached to the columnar structure 1 or 2, respectively, and attached to the horizontal beam. It is fixed to the side surfaces of the columnar structures 1 and 2 and is attached by tightening members 13 such as bolts or screws that are passed through attachment holes 12a provided on the attachment surfaces. . The mounting hole 12a may be a long hole so that the position can be adjusted. In addition, a mounting hole 12b is provided as a long hole in a portion where the cross beam members 4 and 5 of the support metal fitting 11 are attached. In addition, the cross-sectional shape of the support metal 11 may be another shape such as a U-shape in consideration of the strength and the mounting surface.

  As shown in FIGS. 4 and 5, the first and second transverse beams 4 and 5 are members having at least a flat upper surface, and have a hollow cross section as shown, for example, which is sufficient for a force such as bending. It is a long material with a cross-section having a square shape so as to have strength, and is slightly longer than the dimension between the columnar structures 1 and 2.

  As shown in FIG. 4, on the back surfaces of the first and second transverse beams 4 and 5 of the beam apparatus 3, a clamping member 14 such as a bolt or a screw and a nut is placed on the support bracket 11 (see FIG. 14). The mounting bracket 15 is fixed to the position where it can be fixed by welding or the like. When the mounting bracket 15 is fixed to the support bracket 11 by the fastening member 14, the cross beams 4 and 5 are installed in a pair of upper and lower sides so as to extend between the plurality of columnar structures 1 and 2, that is, to extend across the plurality of columnar structures 1 and 2. A mounting hole 16 through which the tightening member 14 is passed can also be attached between the support bracket 11 and the mounting bracket 15 of the first and second transverse beams 4 and 5 as a long hole so that the position can be adjusted in the left-right direction. Further, the position adjustment in the front-rear direction is performed at the mounting hole 12 b of the support metal fitting 11.

  As shown in FIG. 5, a plurality of attachment portions 17 for attaching the support bracket assemblies 24 are fixed to the front sides of the pair of upper and lower first and second transverse beams 4 and 5 by welding or the like at substantially equal intervals. ing. By attaching the connecting member 6 of the support bracket assembly 24 to the attaching hole 18 of the attaching portion 17 and the attaching hole 6a of the connecting member 6 through the tightening member 19 (see FIG. 1), the pair of upper and lower transverse beams 4 and 5 are integrated. An attachment structure that can be called a virtual wall structure including the cross beams 4 and 5 and the connecting member 6 is formed between the columnar structures 1 and 2, and a support arm 7 is attached to the virtual wall. It is done.

  A cable rack 20, which is a laying rack as shown in FIG. 6, is attached to the upper surfaces of the first and second lateral members 8 and 9. The cable rack 20 is formed in a ladder shape in which a pair of parent beams 21 are arranged in parallel to each other, and the bottom portions of the pair of parent beams 21 are connected at predetermined intervals by child beams 22. In this embodiment, the first and second lateral members 8 and 9 are attached to the connecting member 6 of the support bracket assembly 24. However, the number of the lateral members is one or three or more in the vertical direction. Alternatively, it is provided according to the wiring situation or the required number of cable racks 20.

  In the laying object support apparatus configured as described above, the first and second lateral members from the virtual wall structure composed of the pair of upper and lower lateral beams 4 and 5 and the plurality of connecting members 6 toward the front surface thereof. It can be said that the support arm 7 composed of 8 and 9 extends in a cantilever manner. In this case, the connecting member 6 may be attached in any arrangement as long as the cross beams 4 and 5 are connected to each other to form a virtual wall, for example, between the first and second cross beams 4 and 5. You may connect in the shape of a truss. Further, the case where the support arm 7 constituted by the transverse members 8 and 9 is attached to the connecting member 6 that connects the transverse beams 4 and 5 has been described. However, the transverse members 8 and 9 are attached to and protrude from the virtual wall structure. Therefore, the same effect as that of the embodiment shown in FIG.

  Since the lengths of the first and second lateral members 8 and 9 can be changed according to the wiring conditions such as the width of the cable rack 20, no material is wasted. Further, since the front side of the support arm 7 is open and there is nothing to obstruct like a conventional suspension bolt, a long cable rack 20 can be used, and the cable laying work is very easy to perform. This eliminates scratches on the outer sheath of the cable. In addition, since the beam device 3 and the connecting member 6 which are virtual wall structures are attached to the columnar structure 1, the attachment position in the height direction can be freely set regardless of the ceiling height or the like. Furthermore, since the beam device 3 is composed of a pair of upper and lower horizontal beams 4 and 5 and there is a gap, it is possible to work from the back side of the beam device 3 when work such as cable laying cannot be performed from the front side. At the same time, it is also possible to lower the cable to a floor-mounted device or the like through the gap of the beam device 3.

  FIG. 7 shows an operation of laying the cable 25 on the laying object support device of FIG. The cross-sectional shapes of the first and second cross beams 4 and 5 are determined in consideration of the strength and functions that the cross beam should have. For example, as shown in FIG. 8, a cable laying operation is performed on the laying object support device after installation, and it is easy to attach equipment such as the cable wire drawing machine 26 used at the time of this laying operation on the cross beam 4 or 5. Therefore, it is desirable that the upper surfaces of the cross beams 4 and 5 are flat. As one of the cable laying methods for the cable 25, when the cable indexing rope 27 is looped around the cable extension range, it is generally necessary to make a return circuit for the rope 27 using a roll or the like. However, the cross beam 4 or 5 can be used as a return circuit through a rope 27 inside the cross beam 4 or 5 by making the cross beam into a long material having a hollow cross section. This eliminates the need for a roll for the return circuit that has been conventionally required, and prevents the return rope 27 from interfering with the work. Considering these two functions and strength, it is desirable that the first and second transverse beams 4 and 5 are long materials having a square cross section.

Embodiment 2. FIG.
In the example of the laying object support apparatus shown in FIG. 8, the base 23 is implanted in the front surfaces of the columnar structures 1 and 2 so that the support metal fitting 11 protrudes from the front surfaces of the columnar structures 1 and 2. The support fitting 11 may have any position, attachment structure, and shape as long as it can attach and support the first and second transverse beams 4 and 5 to the columnar structure 1. Other structures are the same as those of the embodiment shown in FIGS.

Embodiment 3 FIG.
FIG. 9 shows a connecting bracket 28 that can be used when the end of the first or second transverse beam 4 or 5 having a predetermined length is connected to the first or second transverse beam 4 or 5 adjacent in the length direction. An example is shown. The transverse beams 4 and 5 which are long materials are made to have a certain size, and when the interval between the columnar structures 1 is wide, the transverse beam 4 or 5 having a fixed length is used as necessary. If it is used by being connected with the connecting metal fitting 28, the material is not wasted. The connecting metal fitting 28 generally has a flange shape that surrounds the outer periphery of the end portion of the horizontal beam, but the protrusion to the outer periphery of the end surface of the horizontal beam becomes large. In order to reduce this protrusion, it is sufficient to use a structure in which it is inserted and connected like a fishing rod, but it is necessary to move the cross beam in the length direction at the time of connection. In order to avoid this movement, the split metal fitting 28 may be attached to the outer periphery of the end of the cross beam 4 or 5. It is preferable to use a fastening member connection structure in which any connection structure connecting metal fitting 28 is coupled to the end of the cross beam 4 or 5 by a fastening member 29 such as a bolt and a nut.

Embodiment 4 FIG.
FIG. 10 shows a laying object support apparatus in which a temporary scaffolding 30 for a rack necessary for cable laying work is installed. In FIG. 10, the transverse members 8 and 9 of the support arm 7 have an L-shaped cross section, and the temporary scaffold 30 can be easily attached to the lower second transverse member 9 using a bolt connection or a mounting bracket. It is attached so that it can be removed. The temporary scaffold 30 is supported by at least any two of the transverse members disposed along the cable rack 20.

  The temporary scaffold 30 is rotatably mounted on a holding frame having a grip portion having a U-shaped cross section into which an L-shaped angle material support arm 7 is inserted and an end surface of the grip portion, and is inserted into the grip portion. The scaffold support member is extended from the holding frame to one side of the cable rack 20 in parallel with the support arm 7 by an attachment device having an eccentric cam for fixing the support arm 7, and along the extending path of the cable rack 20. The scaffold board support can be attached and detached with a single touch. Details of such a temporary scaffold 30 for a rack that can be attached and detached with one touch are described in Japanese Patent Application Laid-Open No. 2000-234440, which is an earlier application by the present applicant.

  By using such a temporary scaffold 30, a single pipe scaffold installed on the floor becomes unnecessary, and the space below the cable rack 20 is opened. This is extremely useful because, for example, it is possible to install a laying object support device in a place where a scaffold cannot be installed on a floor such as above a treatment pond of a sewage treatment plant.

Embodiment 5 FIG.
In the embodiment shown in FIG. 11, the cable 25 is directly laid on the lateral members 8 and 9 of the support arm 7 without using the ladder-shaped cable rack 20. A stopper 31 is provided at the end of the lateral members 8 and 9 so that the laid cable 25 does not move laterally and fall off the lateral members 8 or 9. By using the support arm 7 configured as described above, the ladder-shaped cable rack 20 is not necessary, but the distance between the lateral members 8 or 9 needs to be the same as the distance between the child beams 22 of the cable rack 20. There may be.

Embodiment 6 FIG.
FIG. 12 shows an example in which the temporary scaffold 30 detachably attached to the support arm 7 of the laying object support apparatus of FIG. 10 is applied to the laying object support apparatus of FIG. In this example, the temporary scaffold 30 is detachably attached to the support arm 7 by, for example, bolt coupling. However, when the temporary scaffold is detachable with one touch as described above, depending on the detachable structure, the horizontal member 9 may be used. The one-touch type attachment / detachment device may become unusable due to the cable 25 laid on the upper surface. In such a case, it may be necessary to separately provide a dedicated support arm for attaching the temporary scaffold 30.

  Such a temporary scaffolding support arm is, for example, a one-touch type attachment / detachment device in which a temporary scaffolding support arm is fixed to a part of the connecting member 6 extending downward in FIG. Can be worn. Such a temporary scaffolding support arm can be attached to the beam device 3.

  The support arm 7 for attaching the temporary scaffold 30 has a bent portion 32 (see also FIG. 14) and is configured to be bent. In the example shown in the figure, the bent portion 32 is provided on the second lateral member 9 of the support arm 7 to which the temporary scaffold 30 is attached, and the two portions that are rotatably supported by the pins 33 are linear. It can be fixed by the tightening member 34 at the position extended to the front.

  Next, a cable support method using the laying object support device of the present invention will be described with reference to FIGS. Since the laying object support device is generally installed at a high place, it is desirable that the assembling work at the high place can be performed as easily as possible. Therefore, as shown in FIG. 13, first, a pair of horizontal beams 4 and 5 are connected to each other by a plurality of connecting members 6 on the floor to form a virtual wall structure, and the virtual wall structure is configured by a plurality of horizontal members 8 and 9. The support arm 7 is attached and the support bracket assembly 24 is assembled.

  Next, a pair of upper and lower support brackets 11 are attached to the side surfaces of the columnar structures 1 and 2 by tightening members 13. Next, the support bracket assembly 24 is lifted by a crane 35 or the like, and the transverse beams 4 and 5 are placed on the support fitting 11 and fixed by the fastening member 14 at the mounting bracket 15 portion. At this time, the position can be adjusted by the mounting hole 12b of the support bracket 11 and the mounting hole 16 of the mounting bracket 15, so that the mounting operation becomes easy. Thus, by preparing the support bracket assembly 24 on the floor in advance and attaching it to the high place, the work at the high place is reduced, and the assembly work can be completed easily in a shorter time.

  Note that the cable rack 20 and the temporary scaffolding 30 for the rack are previously attached to the transverse members 8 and 9 on the floor and assembled, so that the work at a high place is reduced and the assembly can be easily performed in a shorter time. .

  In addition, the support bracket assembly 24 may be large, or the position of the center of gravity may be greatly displaced to make it difficult to hang, or it may be bulky and hindered during transportation. In order to prevent the occurrence of such a situation, the second transverse member 9 of the support arm 7 can be fixed at a position bent by the bent portion 32 as shown in FIG. At the unfolded position where the second transverse member 9 is extended linearly, the two portions rotatably supported by the pin 33 are fixed by the fastening member 34. FIG. 14 shows a state where the support arm 7 is lifted by the crane 35 in a folded state.

  Although not shown in FIG. 14, the temporary scaffold 30 or the cable rack 20 may be attached to the bent second lateral member 9. In addition, the case where the second transverse member 9 is configured to be foldable in the vertical direction (the rotational direction in the drawing in FIG. 14) has been described, but the bending direction of the transverse member 9 is the transverse direction (perpendicular to the drawing in FIG. 14). Other directions such as a direction in a horizontal plane) may be used.

  As described above, according to the laying object support method of the present invention, the step of attaching the support fitting 11 to the plurality of columnar structures 1 and 2 and the support arm 7 for supporting the cable 25 as the laying object in a cantilever manner. 3 to produce the support bracket assembly 24, the step of attaching the beam device 3 of the support bracket assembly 24 to the support fitting 11, and the step of arranging the cable 25 as a laying object on the support arm 7. The provided laying object support method is obtained.

  Before attaching the beam device 3 to the support bracket, at least one of the cable rack 20 and the temporary scaffold 30 can be attached to the support bracket assembly 24, and a part of the support bracket assembly 24 is bent after the assembly. The folded portion of the support bracket assembly can be unfolded before the cable 25 is placed.

Embodiment 7 FIG.
In each of the above embodiments, the case where the laying object is a cable has been described. However, the laying object is not limited to a cable, and may be any long object such as a pipe or a duct.

It is a perspective view which shows Embodiment 1 of the laying thing support apparatus of this invention. It is a perspective view which shows the support bracket assembly of the laying object support apparatus of FIG. It is a perspective view which shows the support metal fitting of the laying object support apparatus of FIG. It is a perspective view which shows the back surface of the cross beam of the laying object support apparatus of FIG. It is a perspective view which shows the front surface of the cross beam of the laying object support apparatus of FIG. It is a perspective view which shows the cable rack which can be used for the laying thing support apparatus of FIG. It is a perspective view which shows the cable laying operation | work in the laying thing support apparatus of FIG. It is a perspective view which shows the support metal fitting of Embodiment 2 of the laying thing support apparatus of this invention. It is a disassembled perspective view which shows the joining metal fitting of Embodiment 3 of the laying thing support apparatus of this invention. It is a perspective view which shows Embodiment 4 with a temporary scaffold of the laying thing support apparatus of this invention. It is a perspective view which shows Embodiment 5 with the fastener of the laying thing support apparatus of this invention. It is a perspective view which shows Embodiment 6 with the fastener and temporary scaffold of the laying thing support apparatus of this invention. It is a perspective view which shows the relationship between the support bracket assembly of the laying thing support apparatus of this invention, and a support metal fitting. It is explanatory drawing which shows the state which lifted the support bracket assembly of the laying object support apparatus of this invention with the crane.

Explanation of symbols

  1, 2 Columnar structure, 3 Beam device, 4, 5 Cross beam, 6 Connecting member, 7 Support arm, 8, 9 Horizontal member, 10 Stay, 11 Support bracket, 12 Mounting hole, 13 Tightening member, 14 Tightening member , 15 Mounting bracket, 16 Mounting hole, 17 Mounting part, 18 Mounting hole, 19 Tightening member, 20 Cable rack (laying rack), 21 Parent girder, 22 Child girder, 23 Base, 24 Support bracket assembly, 25 Cable (Laying thing), 26 cable wire drawing machine, 27 rope, 28 metal fittings, 29 fastening members, 30 temporary scaffolding, 31 metal fittings, 32 bent parts, 33 pins, 34 fastening members, 35 cranes.

Claims (26)

A beam device extending between the columnar structures and supported by the columnar structures;
A laying object support device comprising a support arm supported by the beam device in a cantilever manner and supporting the laying object.   The laying object supporting device according to claim 1, wherein the beam device has a plurality of lateral beams arranged vertically apart from each other.   The laying object supporting device according to claim 2, wherein the beam device has a connecting member for connecting the plurality of transverse beams to each other.   The laying object support device according to any one of claims 1 to 3, wherein the beam device is supported by the columnar structure by a support fitting attached to the plurality of columnar structures.   The laying object support device according to claim 4, wherein the support fitting is attached to a side surface of the columnar structure by fastening at least two locations so as to protrude from the front surface of the columnar structure.   The laying object support device according to claim 4, wherein the support metal fitting is implanted in a front surface of the columnar structure so as to protrude from the front surface of the columnar structure.   The support bracket has a rod-like shape with a cross section of at least two planes on the outer side, and the two outer planes are a mounting surface for a columnar structure and a mounting surface for a horizontal beam, respectively. Item 7. The laying object support device according to any one of Items 4 to 6.   The laying object support device according to any one of claims 4 to 7, wherein a tightening portion of the support metal fitting to the columnar structure is formed to be position-adjustable by a long hole.   The laying object support device according to any one of claims 4 to 8, wherein the support metal fitting and the cross beam are attached to each other by tightening, and at least one of the support metal fitting and the cross beam is formed to be position-adjustable by an elongated hole. .   The installation support apparatus according to claim 2, wherein at least an upper surface of the horizontal beam is a flat surface.   The said horizontal beam is formed by the elongate material with a hollow cross section, The laying object support apparatus as described in any one of Claims 2-10 characterized by the above-mentioned.   The laying object support apparatus according to any one of claims 2 to 11, wherein the cross beam is formed of a long material having a square-shaped cross section.   The said horizontal beam is formed with the elongate material of predetermined length, The edge part is connected with the adjacent horizontal beam by a joining metal fitting, The laying thing support apparatus in any one of Claims 2-12 characterized by the above-mentioned.   14. The laying object support device according to claim 13, wherein the connecting fitting has a shape surrounding an outer periphery of an end portion of the transverse beam.   15. The laying object support device according to claim 13 or 14, wherein the connecting fitting is attached in two on the outer periphery of the end portion of the transverse beam.   16. The laying object support apparatus according to claim 13, wherein the connecting metal fitting has a shape in which the horizontal beam is inserted and connected in a nested manner.   The laying object support device according to any one of claims 13 to 15, wherein the connection fitting has a tightening connection structure coupled to the horizontal beam by tightening.   The laying object support apparatus according to any one of claims 3 to 17, wherein the support arm has an L-shaped cross section.   The laid object support device according to any one of claims 3 to 18, wherein a ladder-shaped laid object rack is provided on the support arm, and the laid object is supported by the laid object rack.   The laying object support device according to any one of claims 3 to 19, wherein the temporary scaffold is supported by at least any two of the support arms.   21. The laying object support apparatus according to claim 3, wherein the support arm includes a stopper that prevents the laying object from falling off.   The laying object support device according to any one of claims 3 to 21, wherein the support arm is configured to be bendable. Attaching a support arm that supports the laying object to the beam device in a cantilever manner to produce a support bracket assembly;
Attaching a support bracket to a plurality of columnar structures;
Attaching the beam device of the support bracket assembly to the support bracket;
A laying object support method comprising: arranging a laying object on the support arm.   24. The laying object support method according to claim 23, further comprising the step of attaching a laying object rack to the beam apparatus to which the support arm is attached before the step of attaching the beam apparatus to the support bracket.   25. The laying object support method according to claim 23 or 24, further comprising a step of attaching a construction scaffold to the beam device to which the support arm is attached before the step of attaching the beam device to the support bracket. . A step of bending a part of the support arm before the step of attaching the beam device to the support bracket;
The method for supporting a laid object according to any one of claims 23 to 25, further comprising a step of expanding a part of the support arm that is bent before the step of arranging the laid object.

Images