JP3703096B2 - Temporary scaffolding for structure and construction method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary scaffold for a structure such as a boiler furnace and a construction method thereof, and more particularly to a temporary scaffold suitable for construction of a large-scale circulation boiler such as a thermal power plant and a construction method thereof.
[0002]
[Prior art]
A circulation boiler furnace provided in a thermal power plant or the like has a rectangular parallelepiped surrounding. Most of these peripheral surfaces have a double structure including a water tube wall inside the furnace and a casing outside the furnace, and a gap between the water tube wall and the casing is filled with a refractory heat insulating material.
[0003]
Since the interior of the furnace is hollow, it is necessary to provide a temporary scaffold along the peripheral surface of the furnace when attaching the water pipe wall. Temporary scaffolding is a scaffold for setting the water pipe wall that is divided and delivered to the construction site to a predetermined mounting position, a scaffold for welding the water pipe walls to each other, and a scaffold for water pressure testing of the water pipe wall. Used as
[0004]
Conventionally, temporary scaffolds in boiler furnaces are mostly assembled so that pipe scaffolds or steel unit scaffolds are assembled from below (for example, above the ground) to the top, so that scaffold logs or steel units are connected. To form a framework. This is because the first is the most common temporary scaffolding, the second is the most familiar method based on past performance, the construction technology has been established, and the third is the other effective. This is because there was no alternative method.
[0005]
However, these methods of assembling from the ground require a large number of man-hours required for assembly and dismantling work, and particularly when the ground conditions are bad, have a great deal of work for alignment. In addition, since there are many work in high places when assembling and disassembling, it is not preferable from the viewpoint of work safety, and furthermore, there are cases where work efficiency is hindered because it occupies a lower space where vehicles and tools go in and out.
[0006]
Further, in a high-rise scaffold, since a vertical load acts as a compressive stress, the frame member is required to have a corresponding rigid structure in order to obtain a buckling strength, and there is a problem that the cost of materials increases.
[0007]
In order to eliminate the disadvantages of the above-mentioned ground assembly method, multiple pairs of vertical bars are suspended under the upper rigid member (support beam) suspended by a suspension bar, and each pair of vertical bars has hooks at both ends. Various suspension scaffolds have been proposed, such as a method of hanging a horizontal bar having a cross section, bridging a scaffold plate between adjacent horizontal bars, assembling the scaffold, and then hanging the lower scaffold one after another (for example, Patent Documents) 1).
[0008]
The suspension scaffold described in Patent Document 1 includes two or more pairs of horizontal rigid members that are suspended from the boiler body structure and that serve as the uppermost scaffold, and are detachably connected to the horizontal rigid members. A second-layer scaffolding is composed of a vertical bar, a hook provided at both ends, a horizontal bar detachably bridged between the paired vertical bars, and a scaffold plate bridged between the horizontal bars. As in the second layer, the scaffold below the third layer is composed of vertical bars, horizontal bars, and scaffold plates, and the vertical bars are detachably suspended from the upper horizontal bars. It is.
[0009]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 59-044504 [0010]
[Problems to be solved by the invention]
By the way, a pendant coil for final heating is suspended substantially over the entire surface of the hollow portion in the boiler furnace below the ceiling wall tube. In order to inspect for the presence or absence of cracks in the pendant coil and for the lack of thickness, a stage for inspection work in which a scaffold is spread all over the lower side of the pendant coil is required.
[0011]
However, the temporary scaffold in the boiler furnace described in the above-mentioned Patent Document 1 is a scaffold provided on the peripheral surface of the boiler furnace, for inspection work in which the scaffold is spread over the entire lower surface of the pendant coil. It does not have a stage. For this reason, in order to check the pendant coil, a support column was separately set up from the bottom of the furnace, and an intermediate stage for checking the pendant coil was installed at an intermediate position inside the furnace.
[0012]
For this reason, it is necessary to install the scaffolding on the peripheral surface in the furnace and this intermediate stage in a double manner, which increases the installation man-hours and costs, increases the work at high places, and improves the safety of the installation work. It was a problem.
[0013]
The present invention has been made in view of such circumstances, and without installing a scaffold on the peripheral surface in a structure such as a boiler furnace and an intermediate stage, the structure inside such as a water pipe wall inside the furnace. It is an object to provide a temporary scaffold for a structure such as a boiler furnace capable of performing installation work and inspection of installation objects along a wall, and inspection work of a suspended installation such as a pendant coil for final heating, and a method for constructing the temporary scaffold. And
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a temporary scaffold provided in multiple layers in a vertical plane along the side wall around the structure, and is suspended from the structure body and There are two or more pairs of vertical bars that are detachably connected to the support beam, and support rods that serve as scaffolding for the upper layer, and hooks are provided at both ends, and are detachably bridged between the paired vertical bars The second layer scaffold is composed of the horizontal bar formed and a scaffold plate bridged between the horizontal rods, and the scaffolds below the third layer are the vertical bar, horizontal bar and scaffold plate as in the second layer. In the temporary scaffolding of the structure in which the vertical bar is detachably suspended from the upper horizontal bar, the support beam is incorporated as a scaffold for the predetermined intermediate layer, and the intermediate layer is provided inside the intermediate layer. It is characterized by an intermediate stage.
[0015]
According to the first aspect of the present invention, the suspension-type temporary scaffold provided in multiple layers in the vertical plane along the side wall around the structure is incorporated with a highly rigid support beam as a scaffold for the intermediate layer at a predetermined position. Since the intermediate stage is integrated in the middle layer, it is possible to mount and inspect the installation along the side wall inside the structure without suspending the scaffolding on the peripheral surface and the intermediate stage. It is possible to perform inspection work of installed objects. For this reason, the installation man-hour and the installation cost are reduced, and the work at a high place during the installation is also reduced.
[0016]
According to a second aspect of the present invention, in the first aspect of the invention, the intermediate stage includes a plurality of truss beams assembled to the support beam at a predetermined interval, and the scaffold plate that is swung over the truss beam. It is characterized by consisting of.
[0017]
According to the invention of claim 2, the intermediate stage for the inspection work of the suspended installation is constructed by assembling a plurality of truss beams to the rigid support beam incorporated in the intermediate layer of the temporary scaffold, and placing the scaffold on the truss beam. Since it is constructed by rolling the plate, it is lightweight and easy to assemble and disassemble.
[0018]
The invention according to claim 3 is a method for constructing a temporary scaffold provided in multiple layers in a vertical plane along the side wall around the structure, the suspension being suspended from the structure body, and the uppermost scaffold. The second layer scaffold is suspended from the uppermost support beam, the third layer and lower scaffolds are respectively suspended from the upper scaffold, and the support beam is a predetermined intermediate layer. In the method of constructing a temporary scaffold for a structure in which an intermediate stage is incorporated in the intermediate layer inside the intermediate layer, the temporary scaffold formed to be suspended in multiple layers is divided into a plurality of parts. Assembling and lifting the scaffolds on one divided part side by layer, incorporating an intermediate stage inside a predetermined intermediate layer, and forming the lower layer scaffold to the final layer, then the second divided part scaffold and intermediate stage Similarly for the final layer In addition, the scaffolds and intermediate stages of the respective layers of the first divided portion are connected to the scaffolds and intermediate stages of the respective layers of the second divided portion, respectively, and are similarly formed to the scaffold of the last divided portion. In addition, the scaffold and intermediate stage of each layer of the last divided portion are connected to the scaffold and intermediate stage of each layer of the adjacent divided portion.
[0019]
According to the invention of claim 3, the suspended temporary scaffolding provided in multiple vertical layers along the side wall around the structure and having the intermediate stage assembled to the predetermined intermediate layer is a plan view. The number of the lifting devices for lifting the temporary scaffold is small. In addition, since the floor area required for the work for assembling the scaffold is also divided, the floor area occupied for the assembly work can be reduced, and other work can be performed in parallel on the floor portion that is not occupied.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a temporary scaffold in a boiler furnace as a structure according to an embodiment of the present invention and a construction method thereof will be described with reference to the accompanying drawings. In addition, the same number is attached | subjected to the same member in each figure.
[0021]
First, a basic configuration of a suspended scaffold type temporary scaffold used as a temporary scaffold in a boiler furnace according to an embodiment of the present invention will be described. FIG. 1 is a perspective view showing the basic structure of a temporary scaffold in the form of a suspended scaffold. The temporary scaffold 10 includes a support beam 11 suspended from a structure by a wire rope, a suspension rod 21 and the like, and the support beam 11 is a top layer scaffold.
[0022]
A plurality of pairs of vertical bars 15, 15,... Are suspended below the support beam 11, and the horizontal bars 16, 16,... Fitted into each pair of vertical bars 15, 15, and between the horizontal bars 16, 16. A second-layer scaffold is formed by the scaffold plates 14, 14,. A pair of vertical bars 15, 15 are suspended from the second level horizontal bars 16, 16,..., And a horizontal bar 16 is fitted into each pair of vertical bars 15, 15. In the meantime, the scaffold plate 14 is cross-linked to form a third-layer scaffold.
[0023]
In the same manner, the fourth, fifth,... Scaffolds are formed in the same manner, and the entire temporary scaffold is constituted by these multiple-layer scaffolds.
[0024]
FIG. 2 is a perspective view showing details of the vertical bar 15 and the horizontal bar 16 for forming a scaffold below the support beam 11. The horizontal bar 16 has two flanges 16A and 16A welded to each end. Further, the connecting rod 15A is welded to both ends of the vertical bar 15, and the connecting plate 15A has a large-diameter hole 15C slightly larger than the diameter of the flange 16A of the horizontal bar 16 and the diameter of the bar portion 16B of the horizontal bar 16. A saddle-shaped hole 15B formed by connecting a slightly larger small-diameter hole 15D is formed.
[0025]
The shape of the daruma-shaped hole 15B will be described in more detail. The semicircular portion of the small diameter hole 15D and the large diameter hole 15C are connected by a parallel groove having a width equal to the diameter of the small diameter hole 15D. 16B can move between a large diameter hole 15C and a small diameter hole 15D. The same connecting plate 15 </ b> A as that provided at both ends of the vertical bar 15 is attached to the lower end of the suspension bar 21 that suspends the support beam 11.
[0026]
Further, the gap between the two flanges 16A, 16A attached to both ends of the horizontal bar 16 is slightly larger than twice the thickness of the connecting plate 15A attached to both ends of the vertical bar 15. .
[0027]
A connecting plate 15A at the lower end of the vertical bar 15 suspended from the upper layer and a connecting plate 15A at the upper end of the vertical bar 15 suspended from the lower layer are inserted through the large-diameter hole 15C through the flange 16A of the horizontal bar 16, respectively. The rod portions 16B in the gaps between the flanges 16A and 16A are engaged with the respective small diameter holes 15D. The connecting plate 15A at the upper end of the vertical bar 15 is provided with a gripping tool 17 for gripping the bar portion 16B of the horizontal bar 16 engaged with the small diameter hole 15D.
[0028]
FIG. 3 is a perspective view showing the scaffold plate 14. The scaffolding plate 14 includes a scaffolding plate main body 14A having a U-shaped cross section, and hook bases 14B and 14B provided with two hooks 14C and 14C respectively attached to both ends in the longitudinal direction of the scaffolding plate main body 14A. ing.
[0029]
Scaffolding plates 14 are engaged with the horizontal bars 16 with hooks 14C and 14C provided at both ends in the longitudinal direction between the adjacent horizontal bars 16 of the horizontal bars 16 spanned by the vertical bars of each layer. It is cross-linked and becomes a scaffold for each layer.
[0030]
Next, the assembly procedure of the basic structure of the suspension-type temporary scaffold 10 having the above-described structure will be described. First, the support beam 11 serving as the uppermost scaffold is carried into a predetermined position on the ground. Next, the plurality of wire ropes that lift the temporary scaffold 10 are lowered to the ground, and the suspension rod 21 connected to the tip of each wire rope is attached to a predetermined position of the support beam 11. A connecting member (not numbered) having the same dimensions as the rod portion 16B and the flange 16A of the horizontal rod 16 is attached to the support beam 11 at a position where the suspension rod 21 is attached and a position where the second-layer vertical rod 15 is suspended. It is connected by a connecting plate provided at the lower end of the suspension bar 21.
[0031]
Next, the second-layer vertical bars 15, 15,... Are attached to the connecting members at positions where the second-layer vertical bars 15 are suspended. At this time, the rod of the connecting member attached to the support beam 11 is inserted into the small-diameter hole 15D of the connecting plate 15A, and then the vertical rod 15 is slid to thereby move the large-diameter hole 15C of the connecting plate 15A and the connecting member rod portion. Are engaged. Next, the gripping tool 17 is rotated and positioned at a position where the rod portion is gripped.
[0032]
When the attachment of the vertical bar 15 to the predetermined location is completed, the wire rope is pulled up by a lifting machine (not shown), and the support beam 11 is lifted by the lower layer. The vertical bar 15 may be attached after the support beam 11 is lifted.
[0033]
Next, the horizontal bar 16 is attached to the connecting plate 15 </ b> A at the lower end of the vertical bars 15, 15 arranged in pairs in the width direction of the support beam 11. The horizontal bar 16 is attached by inserting the flanges 16A at both ends of the horizontal bar 16 through the large-diameter hole 15C of the saddle-shaped hole 15B formed in the connecting plate 15A of the vertical bar 15 and sliding it downward. The 16 rod portions 16B are engaged with the small-diameter hole 15D of the saddle-shaped hole 15B.
[0034]
When the attachment of the horizontal bar 16 at a predetermined location is completed, the scaffolding plate 14 is engaged between the horizontal bars 16 by engaging the hooks 14C and 14C provided at both ends in the longitudinal direction of the scaffolding plate 14 with the horizontal bar 16. 14 is cross-linked. This will assemble the second layer scaffold.
[0035]
Next, the connecting plate 15A attached to the upper end of the third-layer vertical bar 15 is fitted into the inner side of the flange 16A at the end of the horizontal bar 16 using a dart-shaped hole in the same manner as described above. The bar 16B of the horizontal bar 16 is gripped by the gripping tool 17. Since the gap between the flange 16A at the end of the horizontal bar 16 and the inner flange 16A is slightly wider than twice the thickness of the coupling plate 15A, the coupling plate 15A of the second vertical bar 15 and the third The connecting plate 15A of the vertical bar 15 of the layer is sandwiched between the two flanges 16A, 16A.
[0036]
When the attachment of the vertical bar 15 to the horizontal bar 16 at a predetermined location is completed, the support beam 11 is further lifted and the second layer is further lifted from the ground. Note that the third layer vertical bar 15 may be attached after the second layer is lifted. In the same manner, the scaffolds are assembled and lifted one layer at a time. In this way, the assembly work is performed on the ground and lifted one by one, so that the work at a high place is remarkably reduced. If necessary, the support beam 11 is incorporated in an arbitrary layer to improve the strength of the temporary scaffold as a whole.
[0037]
When dismantling the temporary scaffold 10, the bottom scaffold is first disassembled in the reverse order of assembly. After removing the scaffolding plates 14, 14,... Of the lowermost layer scaffold, and removing the horizontal bars 16, 16,.
[0038]
When all the lowermost vertical bars 15, 15,... Are removed, the entire temporary scaffold 10 is then suspended by one layer, and the upper scaffolding of the lowermost layer is disassembled. Thereafter, this operation is repeated to dismantle the entire temporary scaffold 10.
[0039]
FIG. 4 shows a state in which the suspended scaffold type scaffolds formed as described above are formed on two adjacent surfaces. As shown in FIG. 4, a support beam 11 is incorporated in the eighth-layer scaffold to improve the strength. In addition, the scaffolds in each layer are connected to the scaffolds on adjacent surfaces. The above is the basic configuration of the temporary scaffold 10 in the form of a suspended scaffold and its assembly and disassembly procedures.
[0040]
Next, the overall configuration of the temporary scaffold 10 in the boiler furnace according to the embodiment of the present invention will be described. 5 and 6 show the overall configuration of the temporary scaffold 10 in the boiler furnace according to the embodiment of the present invention. FIG. 5 is a front view, and FIG. 6 is a side sectional view.
[0041]
As shown in FIG. 5, the temporary scaffold 10 is suspended by the suspension rods 21, 21,... And the wire ropes 22, 22, and so on along the inner peripheral surface of the furnace 71 installed in the boiler 70. The uppermost layer of the temporary scaffold 10 is framed by the support beam 11, and the support beam 11 is also incorporated in the intermediate layer, so that the strength of the temporary scaffold 10 as a whole is maintained. In FIG. 5, the scaffold on the near side is shown from the upper layer to the support beam 11 incorporated in the first intermediate layer, and the following layers are not shown.
[0042]
As shown in FIG. 6, a plurality of hoisting machines 73, 73,... Are provided on the ceiling floor of the boiler 70, and are temporarily installed by wire ropes 22 and suspension rods 21 via a plurality of pulleys (not shown). The scaffold 10 is configured to be lifted.
[0043]
In addition, pendant coils 72, 72,... (Installed objects) for final heating hang from an upper wall of the furnace 71 (not shown). These pendant coils 72, 72,... Hang down in a tightly arranged manner in the upper space in the furnace 71.
[0044]
In FIG. 6, the support beam 11 is also incorporated in the ninth layer counted downward from the support beam 11 incorporated in the uppermost layer of the temporary scaffold 10, and an intermediate stage 12 is formed at this position. The intermediate stage 12 is a stage for checking whether or not there are cracks in the pendant coils 72, 72,..., And whether there is a lack of thickness, and is formed on the entire inner surface of the ninth layer. As shown in FIG. 7, the intermediate stage 12 includes truss beams 13, 13,... Stretched between support beams 11, 11,. The scaffolding plates 14, 14,... Pasted between 13, 13 are positioned so that the inspection work can be easily performed below the pendant coils 72, 72,.
[0045]
Scaffolds of each layer below the intermediate stage are formed further down to the lowest layer along the peripheral side walls in the furnace 71, and the temporary scaffold 10 as a whole is formed suspended in the furnace 71. .
[0046]
Next, the construction procedure of the temporary scaffold 10 in the boiler furnace will be described. FIG. 8 is a plan layout view of the temporary scaffold 10. In FIG. 8, the alternate long and short dash line represents the inner peripheral surface of the furnace 71. The temporary scaffold 10 is composed of A and E parts on the near side, B part on the left side, F part on the right side, D and H parts on the back side, and C and G parts on the middle part. Stair scaffolds for moving between the layers are formed in the wide portions of the B portion and the F portion.
[0047]
As shown in FIGS. 6 and 8, the upper part of the intermediate stage 12 is formed with scaffolds of A part and E part, B part, F part, and C part and G part. Scaffolds of all the parts are formed, and the lower part from the intermediate stage 12 is composed of A part and E part, B part, F part, and D part and H part.
[0048]
In constructing the temporary scaffold, the temporary scaffold 10 is divided into left and right parts along the YY line in FIG. 8, and the scaffold is first constructed from the right scaffold. That is, the uppermost support beams 11, 11,... Of the A part, the B part, and the C part are assembled on the lowermost work floor of the furnace 71, and then lifted by a plurality of hoisting machines 73, 73,. Next, the second layer scaffold is assembled and lifted one more layer. The above is repeated, and in the ninth layer, the support beams 11, 11,... Of the A part, the B part, the C part, and the D part are assembled, and the truss beams 13, 13,. Assembling, spread the scaffolding plates 14, 14,... And assemble half of the intermediate stage 12. From the tenth layer onwards, the scaffolds of part A, part B and part D are assembled one layer at a time and lifted up to the lowest layer.
[0049]
Once all of the right half scaffolding has been constructed, the left half scaffolding is constructed in the same manner. At this time, the respective suspension rods 21 suspending the left half scaffolding are fixed to the ceiling casing of the boiler 70, and after fixing, the wire ropes 22, 22,. Change to 11, 11, ....
[0050]
In the same way for the right half scaffold, the upper part from the intermediate stage 12 is formed with the E part, F part, and G part scaffolds sequentially for eight layers, and the E part, F part, G part, and H part in the ninth layer. The support beams 11, 11,... And the half of the intermediate stage 12 are assembled. In addition, the scaffolds of the E part, the F part, and the H part are formed below the tenth layer, and the layers are constructed up to the lowest layer.
[0051]
When all the right-half scaffolds are constructed, the left and right scaffolds of each layer and the left and right of the intermediate stage 12 are coupled using a coupling tool (not shown), and integrated as a temporary scaffold 10. When the connection is completed, the suspension rods 21 suspending the right half scaffolding are similarly fixed to the ceiling housing of the boiler 70.
[0052]
In this way, the temporary scaffolding is divided into left and right parts, the left scaffolding and the right scaffolding are constructed in this order, and finally the left and right are combined, so that the number of hoisting machines 73 can be cut in half.
[0053]
In the present embodiment, the configuration of the temporary scaffold 10 is configured as shown in FIG. 8, but is not limited thereto, and is configured with an appropriate configuration depending on the configuration of the pendant coils 72, 72,. can do. Further, although the intermediate stage 12 is formed on the entire surface of the intermediate layer support beam 11, it may be formed not only on the entire surface but only on a necessary portion. Moreover, in constructing the temporary scaffolding 10, it was constructed in the left and right divisions, but it is not limited to two divisions and may be further divided into a large number.
[0054]
【The invention's effect】
As described above, according to the temporary scaffold for a structure and the construction method thereof according to the present invention, the suspended temporary scaffold provided in multiple layers in a vertical plane along the peripheral side wall of the structure has a predetermined position. Since a support beam with high rigidity is built in as a scaffold for the intermediate layer and an intermediate stage that covers the entire inner surface of the intermediate layer is integrated, it is possible to construct a structure without installing the peripheral scaffold and the intermediate stage twice. It is possible to perform installation and inspection of the installation along the inner side wall and inspection of the installation that is suspended. For this reason, the man-hours and cost for installing the temporary scaffolding are reduced, and the work at high places during installation is also reduced, so there are few problems in terms of safety in the installation work.
[0055]
In addition, a suspended temporary scaffolding that is provided in multiple vertical layers along the side walls around the structure and has an intermediate stage assembled on a predetermined intermediate layer is provided in several parts of the plan view. Since it is divided and formed one by one for each divided part, the number of lifting devices for lifting the temporary scaffold can be reduced. Further, since the floor area required for the work for assembling the scaffold is also divided, the floor area occupied for the assembly work can be reduced, and other work can be performed in parallel on the floor portion that is not occupied.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a basic structure of a temporary scaffold according to the present invention. FIG. 2 is a perspective view illustrating details of a vertical bar and a horizontal bar of the temporary scaffold. FIG. 3 is a perspective view illustrating a scaffold plate. FIG. 5 is a front view showing the overall configuration of the temporary scaffold in the boiler furnace according to the embodiment of the present invention. FIG. 6 is a front view showing the entire structure of the temporary scaffold in the boiler furnace according to the embodiment of the present invention. FIG. 7 is a side view showing the overall structure of the temporary scaffolding in the building. FIG. 7 is a side view showing the structure of the intermediate stage. FIG. 8 is a plan layout of the temporary scaffolding in the boiler furnace.
DESCRIPTION OF SYMBOLS 10 ... Temporary scaffold, 11 ... Supporting beam, 12 ... Intermediate stage, 13 ... Truss beam, 14 ... Scaffolding plate, 15 ... Vertical bar, 16 ... Horizontal bar, 16A ... Spear, 21 ... Suspension bar, 22 ... Wire rope, 70 ... Boiler, 71 ... Furnace (structure), 72 ... Pendant coil (installation), 73 ... Winding machine

Claims (3)

A temporary scaffold provided in multiple layers in a vertical plane along the side wall around the structure,
While suspended from the structure body, it has a support beam that will be the uppermost scaffold,
Two or more pairs of vertical bars detachably connected to the support beam, and hooks at both ends,
A second-layer scaffold is composed of a horizontal bar detachably spanned between the paired vertical bars and a scaffold plate bridged between the horizontal bars,
In the temporary scaffold of the structure in which the scaffold below the third layer is composed of a vertical bar, a horizontal bar, and a scaffold plate as in the second layer, and the vertical bar is detachably suspended from the upper horizontal bar.
A temporary scaffold for a structure, wherein the support beam is incorporated as a scaffold for a predetermined intermediate layer, and an intermediate stage is incorporated in the intermediate layer inside the intermediate layer. The intermediate stage is
A plurality of truss beams assembled to the support beams at a predetermined interval;
The temporary scaffold for a structure according to claim 1, wherein the scaffold is formed on the truss beam. A method for constructing a temporary scaffold provided in multiple layers in a vertical plane along a side wall around a structure,
While suspended from the structure body, it has a support beam that will be the uppermost scaffold,
A second layer scaffold is suspended from the uppermost support beam,
The scaffolds below the third layer are respectively suspended on the upper scaffolds,
In the method of constructing a temporary scaffold for a structure in which the support beam is incorporated as a scaffold for a predetermined intermediate layer, and an intermediate stage is incorporated into the intermediate layer inside the intermediate layer,
Dividing the temporary scaffold formed in multiple layers into a plurality of parts,
While assembling the scaffolds on the first divided part side one by one and lifting them up, an intermediate stage is incorporated inside a predetermined intermediate layer, and the lower layer scaffold is formed up to the final layer,
Next, the scaffold and the intermediate stage of the second divided portion are similarly lifted to the final layer, and the scaffold and intermediate stage of each layer of the first divided portion and the scaffold and intermediate stage of each layer of the second divided portion are formed. Respectively,
Similarly, the structure is formed by lifting up to the scaffold of the last divided part, and connecting the scaffold and intermediate stage of each layer of the last divided part to the scaffold and intermediate stage of each layer of the adjacent divided part. How to build a temporary scaffold for things.

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