JP2001159231A - Temporary structure and its construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary structure and its construction method capable of reducing the buckling length of supports in half, improving the load support strength, and capable of reducing the number of components and securing work passages. SOLUTION: Bored flanges 10 are fixed at the described intervals in the vertical axial direction, the supports 2 extendable in sequence are fitted, and two diagonal members 17 are pivotally supported to be flared downward at the middle of a horizontal pipe 15 fitted with connecting metals 14 to the flanges 10 at both ends and connecting the supports 2 erected on both sides. Brace members 3 fitted with the connecting metals 14 to the flanges 10 at the end sections of the diagonal members 17 and scaffolding boards suspended between the horizontal pipes 15 of the opposite brace members 3 are provided. When the connecting metals 13 of the horizontal pipes 15 of the brace members 3 are connected to the upper flange 10, the connecting metals 14 of the diagonal members 17 can be connected to the lower flange 10. When this temporary structure is constructed, the buckling length of the supports 2 can be reduced in half by arranging the brace members 3 of adjacent spans to form vertical steps.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional temporary structure used for supporting construction work and the like, and a method of constructing the same.

[0002]

2. Description of the Related Art Conventionally, a shoring used for construction work of various buildings, civil engineering works, etc., as shown in FIG. The horizontal members 62 are joined together, the middle of the horizontal members 62 and the middle of the columns 61 are joined with diagonal members 63, and a scaffold plate is erected between the opposed horizontal members 62 to form a prism frame. Is extended upward by the connection of the horizontal member 62 and the diagonal member 63, and if necessary, the column 61 is erected on the side of the column 61, and the columns 61 are connected to each other by the horizontal member 62 and the diagonal member 63. By doing so, it is possible to construct a support having a required planar size.

[0003]

By the way, in the above-mentioned conventional shoring method, the upper ends of the columns 61 are connected by a horizontal member 62, and the middle of the horizontal member 62 and the middle of the column 61 are connected by a diagonal member 63.
In the horizontal direction of each stage, the horizontal members 62 and the diagonal members 63 are arranged at the same height in the horizontal direction of each stage. The vertical arrangement interval of 62 corresponds to the length of one pillar, and therefore, the horizontal member 62
The buckling length of the column 61 determined by the arrangement intervals of the columns becomes longer, and naturally the load supporting strength of the column 61 becomes weaker.
As shown by a dashed line in FIG. 1, there is a problem that buckling occurs in the column 61 when a large load is applied to the support.

Conventionally, since the horizontal member 62 and the diagonal member 63 are separate members, there is a problem that assembly and disassembly are troublesome and the number of constituent members is increased.

[0005] Further, the arrangement of the upper and lower scaffold plates is such that one support 6
The length of the stairs between the upper and lower scaffolds is longer, the weight is heavier, the handling for lifting and lowering is inconvenient, and not only heavy labor, but also long stairs are dangerous This requires the use of handrails, which increases the number of members and requires extra time for installation and disassembly.

[0006] In addition, the work of adding the pillar 61 is as follows.
As shown in FIG. 14, it is carried out on a scaffold plate, but according to the conventional construction method, a horizontal member 62 spanned over the upper end of a column 61 is used.
There is nothing on the scaffold plate because the scaffold plate is erected in between,
There is a risk that the work of extending the support pillar 61 on the scaffold plate will be extremely unstable, and a crash will occur.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the buckling length of a column by half, improve the load supporting strength, reduce the number of components and secure a work passage, and reduce the length and length of stairs and reduce handrails. It is an object of the present invention to provide a temporary structure and a method of constructing the temporary structure, which can omit the above-mentioned structure and can secure the safety of the work of extending the columns.

[0008]

In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a support having fixed flanges with holes at predetermined intervals in the vertical axis direction and capable of successively adding. At the both ends, fittings with flanges are attached, and in the middle of the horizontal pipe connecting the uprights on both sides, two diagonal members are pivoted so that they can be arranged in the lower spread, and this diagonal material It consists of a brace member to which a fitting with a flange is attached at the end, and a scaffold plate that bridges between horizontal pipes of the opposed brace members.
The configuration adopts a configuration in which the connecting member of the oblique material can be connected to the lower flange while the connecting member of the horizontal pipe is connected to the upper flange.

According to a second aspect of the present invention, a flange with holes is fixed at predetermined intervals in the vertical axis direction, and a column which can be successively extended, and fittings for connecting to an upper flange are attached to both ends, and both sides are erected. A brace member in which two diagonal members are pivoted so that the diagonal members can be arranged at the lower part of the horizontal pipe connecting the struts, and a fitting for connecting to the lower flange is attached to an end of the diagonal member. And, using a scaffold plate to be bridged between the horizontal pipes of the opposed brace members, the struts in a set of opposed struts facing each other at a predetermined interval are joined by brace members, and the strut members of the opposed brace members are joined together. When a temporary structure is constructed by laying a scaffolding board between horizontal pipes, a structure is adopted in which the bracing members of adjacent spans are arranged so that a step is formed up and down for each span of this temporary structure. so That.

According to a third aspect of the present invention, in the second aspect of the present invention, after connecting the struts with a brace member, the lower ends of the diagonal members of the brace member are joined with a horizontal member, and the buckling strength of the end strut is provided. Is adopted.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show a state in which a shoring is assembled as a temporary structure. The basic components of the shoring are a jack base 1 and an upright standing on the jack base 1. And a brace member 3 for joining adjacent columns 2 to each other
And a scaffold plate 4 erected between the brace members 3, and stairs 5 bridged between adjacent scaffold plates 4 having steps. A reinforced horizontal member 6 for coupling to each other, a bifurcated bracket 7 attached to the upper end of the column 2, a large support 8 attached to this bifurcated bracket 7, and a horizontal member 9 for directly coupling adjacent columns are provided. Have been.

FIG. 7 shows the types of the jack base 1 and the support column 2. A long support column 2a having a length of 3600 mm to which a flange 10 having holes is fixed at four positions, and a half of the long support column 2a. A conventional intermediate support 2b having a length and having a flange 10 with holes fixed at positions of an intermediate portion and an upper end portion;
Upper extension pillar 2c having half the length of intermediate pillar 2b and having flanges 10 with holes fixed at three positions
And an end lower support 2d having a length of one-third of the upper extension support 2c and having a flange 10 with a hole fixed at the upper end, and a flange 10 with a hole fixed at four positions. Telescopic strut 2e.

Each of the columns 2a to 2d except the telescopic column 2e
Is formed using a steel pipe having a predetermined diameter, and a small-diameter joint pipe 11 for connection is provided at an upper end. The joint pipe 11 and each of the columns 2a to 2d have a fitting portion pin-connected or connected to the joint pipe 11. The telescopic strut 2e comprises a large-diameter pipe 12 and a small-diameter pipe 1 fitted thereto.
The small-diameter pipe 13 is pin-connected to the large-diameter pipe 12 at a desired pull-out position, and the large receiving pipe 8 is attached to the upper end of the small-diameter pipe 13.

FIG. 8 shows a brace member 3 having fittings 14 to the flanges 10 of the columns 2 attached to both ends, and a horizontal pipe 1 made of a steel pipe for connecting the columns 2 standing up on both sides.
5 and two diagonal members 17 each having an upper end pivoted by a pin 16 in the middle of the horizontal pipe 15 and can be arranged in a C-shaped lower spread. A fitting 14 for the two lower flanges 10 is mounted.

The brace member 3 is composed of long struts 2a on both sides.
Or for connecting the intermediate supports 2b to each other,
By fastening the connecting fitting 14 to the upper flange 10, the conditions are such that the connecting fitting 14 of the diagonal member 17 can be connected to the lower flange 10 when the columns 2 on both sides are connected by the horizontal pipe 15. When not in use, it can be folded low so that the diagonal member 17 follows the horizontal pipe 15.

The brace member 3 includes, for example, a long support 2a.
Or, the connection interval of the intermediate support 2b is 1800 mm, 120
Three types, 0 mm and 900 mm, are prepared so that they can be selected according to the conditions for assembling the support and scaffold.

The scaffold plate 4 has a well-known structure in which a pair of hooks are provided at both ends, and is provided between the horizontal pipes 15 of the brace member 3. This scaffold is 1
It can be installed between the horizontal pipes 15 at intervals of 800 mm, and the width is 18
Three types having different widths are prepared so as to correspond to three types of 00 mm, 1200 mm, and 900 mm.

FIG. 11 shows the bifurcated bracket 7, in which horizontal pipes 19 are fixed linearly on both sides of an end pipe 18 fitted externally to the joint pipe 11 of the column 2, and large horizontal pipes 19 are attached to the ends of both horizontal pipes 19. Fix the holding cylinder 20 of the undertaking 8 vertically,
Diagonal material 21 from the ends of both horizontal pipes 19 toward the lower center
Is provided with a flat U-shaped clamp 23 which is externally fitted in the middle of the column 2 and is fixed by bolts 22.

FIG. 9 shows a reinforcing horizontal member 6 for connecting the lower ends of the diagonal members 17 of the brace member 3, and a pair of link plates connected to both ends of a steel pipe having a predetermined length by pins 24. One of 25 and 26 is fixed to the steel pipe by welding, and the other is rotatable about a pin 24 as a fulcrum.
7 is fixed, and a notch 28 for fitting to the pin 27 is provided on the lower edge of the tip end of the rotating link plate 26.

This reinforcing horizontal member 6 is for improving the buckling strength of the column 2 located at the end by connecting the lower ends of the diagonal members 17 of the brace members 3. As shown in FIG. 7, a coupling hole 28 for a pin 27 is provided at the lower end, and as shown by a dashed line in FIG.
With the rotating link plate 26 raised up,
7 into the coupling hole 28, and then the rotating link plate 2
1, the columns 2 can be joined to each other via the reinforcing horizontal members 6 via the lower ends of the diagonal members 17 as shown in FIG.
The buckling strength of the shoring as a structure can be improved by connecting the middle of b to each other.

FIG. 10 shows a horizontal member 9 for directly connecting the adjacent columns 2, and has a structure in which metal fittings 14 for the flange 10 are provided at both ends of a steel pipe having a predetermined length.

FIGS. 12 (A) to 12 (D) show the structure of the joint 14 with respect to the flange 10 of each column 2. The joint 14 is an end of the horizontal pipe 15 or the diagonal member 17 of the brace member 3. FIG. And a holder member 31 fixed in a horizontal state to the section, the reinforcing horizontal member 6, the horizontal member 9 and the like, and the holder member 3
1, a combination of a flange 10 and a wedge member 32 for fastening the holder member 31 is provided.
Side walls that are bent rearward are coupled to both sides of the vertically elongated front wall 33, and rear ends of the opposite side walls are welded to the ends of the horizontal pipe, diagonal material, and the like, and the upper and lower surfaces between the both side walls are welded. Is an opening 34 through which the wedge member 32 is inserted.

The length of the holder member 31 in the front-rear direction is formed longer than the radial length of the portion of the flange 10 where the coupling hole 35 is provided.
A notch 36 is provided along the horizontal direction from the distal end of the flange 10 so that the distal end wall 33 can contact the outer periphery of the column 2. The depth is set. Notch 3 above
If the outer tube 6 is inserted into the flange 10, the holder member 31, the horizontal pipe 15, the diagonal member 17, and the like are prevented from rotating.

The wedge member 32 includes a wedge portion 37 inserted from above into the coupling hole 35 of the flange 10, a horizontal portion 38 provided in the middle of the wedge portion 37, and a right angle from the tip of the horizontal portion 38. The wedge 37 is narrowed toward the lower end, and is formed into a bifurcated shape by the outer periphery of the flange 10 and the rod-like portion 39 which is fitted between the ends of the horizontal horizontal pipe 15 and the diagonal member 17. The front edge of the member 31 that contacts the inner surface of the front wall 33 is vertical, and the rear edge that contacts the end of the coupling hole 35 is an inclined edge. The wedge portion 37 may have a straight shape other than the lower narrow shape as shown.

Pins 40, 41 for retaining are fixed to the upper end of the wedge portion 37 and the lower end of the rod portion 39, and the wedge portion 37 of the wedge member 32 inserted into the holder member 31 is connected to the hole 3 for connection.
In the state of being inserted into the holder 5, the upper end of the wedge portion 37 protrudes from the upper surface of the holder member 31, and the lower end of the rod portion 37 protrudes downward from the lower surface of the holder member 31.

A locking step 42 is provided on the inner edge of the rod 39, and the locking step 42 is
1 and the lower horizontal rail 43, as shown in FIG.
The wedge portion 37 of the wedge member 32 can be held at a position where it does not interfere with the flange 10, and the notch 36 of the holder member 31 can be inserted into the flange 10 regardless of the wedge member 32.

When the holder member 31 is inserted into the flange 10, the inner edge of the rod portion 39 comes into contact with the flange 10, so that the locking step portion 42 comes off the lower horizontal rail 43, and the wedge member 32 is weighted by its own weight. After dropping, the wedge portion 37 falls into the coupling hole 35, and the wedge portion 37 fixes the flange 10 and the holder member 31 in a state where the front wall 33 is pressed against the support post 2, as shown in FIG. Will be.

Next, a method of constructing a shoring, which is a temporary structure, will be described.

First, as shown in FIGS. 4 and 5, jack bases 1 are arranged at four positions on the floor surface, a lower support 2d is connected on the jack base 1, and the four lower supports 2d are connected to flanges 10. Are connected to each other in the form of a frame by the horizontal members 9 by fastening the connecting metal fittings 14 to the intermediate supports 2b. Subsequently, the intermediate supports 2b are connected to the lower supports 2d, and a pair of facing two faces of the intermediate supports 2b standing up in four directions. In the above, the scaffold plate 4 is laid across the horizontal members 9, and the upper flange 10 of the intermediate support 2 b on the four surfaces is put on the scaffold plate 4 and joined by the horizontal pipe 15 of the brace member 3,
The lower end of the diagonal member 17 is connected to the lower flange 10 of the intermediate support 2b, whereby the bracing member 3 is arranged in a frame on four sides, and the horizontal pipe 15 is formed on one pair of facing two sides.
A scaffold plate 4 is installed between them.

As described above, the upper flange 10 is connected to the upper end of the intermediate support 2b by the horizontal pipe 15 of the bracing member 3 on the four surfaces of the added intermediate support 2b and the diagonal member 17 at the four surfaces of the added intermediate support 2b. The lower end of the middle support 2b
Horizontal pipe 15 connected to the lower flange 10 of
By repeating the work of laying the scaffold plate 4 in the upward direction, the basic frame pillar (A) is assembled as shown in FIG.

In the examples shown in FIGS. 1, 4 and 5, the same procedure is performed at a position adjacent to the basic frame column (A), for example, at a position separated by a distance equal to the interval (span) of the intermediate column 2b. The basic frame pillars (A) are assembled, the basic frame pillars (A) are arranged in a grid pattern in a plan view, and the intermediate supports 2b of the adjacent basic frame pillars (A) are connected to the above by the brace members 3. In the same manner, the scaffold plate 4 is connected between the horizontal pipes 15 facing each other.
The basic frame pillars (A) are connected with the brace members 3 in this way to construct a shoring as shown in FIGS. In addition, the stairs 5 can be arranged between the scaffolds 4 where the steps have occurred, and a load receiving frame or the like can be attached to a desired position outside the shoring as needed, so that the base frame (A) can be assembled. The use of the long strut 2a can reduce the number of operations required for adding the intermediate strut 2b.

When the basic frame pillars (A) arranged in a grid pattern are joined by the brace members 3, as shown in FIGS. 1 to 5, the basic frame pillars (A) are used for assembling the basic frame pillars (A). The arrangement of the brace members 3 for joining the adjacent brace members 3 and the adjacent basic frame columns (A) is an arrangement in which a step is formed vertically.

That is, the brace member 3 connecting the adjacent basic frame columns (A) is connected to the lower flange 10 of the intermediate support 2b.
A horizontal pipe 15 is passed over the gap, and the end of the diagonal member 17 is connected to the upper flange 10 located at the upper end of the intermediate support 2b.

With the arrangement of the brace members 3 described above, the horizontal pipes 15 of the brace members 3 for connecting the brace members 3 of the respective basic frame columns (A) and the adjacent basic frame columns (A) are formed as follows.
When the arrangement is such that the strut members 3 connecting the adjacent basic frame columns (A) are arranged at the same height as the strut members 3 of the basic frame column (A). In comparison, the buckling length of the column 2b can be reduced by half, and the load supporting strength of the basic frame column (A) can be improved.

Further, since the brace members 3 are used by arranging the diagonal members 17 on the lower sides of the horizontal pipe 15 in a C-shape extending downward, there is no obstacle at the lower center of the brace members 3. Therefore, a work path can be secured on the scaffold plate 4 spanned between the horizontal pipes 15.

FIG. 6 shows the scaffold plate 4 in the constructed shoring.
Different examples of the planar arrangement pattern of the scaffold plate 4
And a passage is formed on the same plane, and a portion where the scaffold plate 4 is missing becomes a portion where the stairs 5 are hung between the scaffold plate 4 and the adjacent scaffold plate 4 on the lower floor.

FIG. 2 shows an example in which a supporting structure is constructed while directly adding and extending frame pillars on two adjacent surfaces of the basic frame pillar (A). When the two columns 2 are erected in the same manner as described above and are connected to the columns 2 of the basic frame column (A) by the brace members 3, the two columns 2 are vertically moved with respect to the column members 3 of the basic frame column (A). In this arrangement, a half pitch step is formed.

In the support of such an assembly,
In order to improve the buckling strength of the strut located at the end, the reinforcing horizontal member 6 is provided between the lower ends of the diagonal members 17 in the brace member 3.
What is necessary is just to make it join.

FIG. 13 shows a state in which the strut 2b is extended at the time of the construction of the above-mentioned shoring, and the bracing member 3 is arranged so as to have a half pitch step vertically.
The support 2 rests on the scaffold 4 erected between the lower brace members 3.
When performing the extension of b, the extension of the intermediate support 2b is at a position about the height of the worker's waist, and the upper half of the intermediate support 2b is located at the four corners of the scaffold plate 4, so that the railing support It fulfills its role and secures the safety of the replenishment work and prevents the fall.

Also, by arranging the brace members 3 so as to form a half pitch step vertically, in the arrangement of the scaffold plates 4 to be bridged between the horizontal pipes 15 of the brace members 3, the adjacent upper and lower scaffold plates 4 The step is half of the vertical length of the column 2, and for example, as shown in FIGS.
If b is 1800 mm in length, the step between the adjacent upper and lower scaffolding plates 4 is halved to 900 mm, whereby the length of the stairs 5 bridged between the adjacent upper and lower scaffolding plates 4 is approximately half that of the conventional case. The length of the stairs 5 can be shortened and lightened.
With such a short staircase 5, a handrail is not required, and the safety of climbing and descending is improved.

FIG. 1 shows an example of the upper structure of the shoring,
The upper extension column 2c is connected to the upper end of the uppermost intermediate column 2b, and the adjacent upper extension column 2c is connected with the horizontal member 9 on the basic frame (A), and the upper extension column 2c is bifurcated with each other. 7 are attached so that they are arranged on the same surface,
The large underwear 8 is attached to the slab 0, and the large underwear C that receives the lower surface of the slab formwork B is supported by the large underwear 8.

As shown in FIG. 1, by mounting the bifurcated bracket 7 on the upper extension column 2c of the basic frame column (A), the number of large undertakings 8 can be doubled, and Thus, a working path can be secured between the forked brackets 7.

In the illustrated embodiment, the shoring is exemplified as the temporary structure. However, by using the above-described respective constituent members, the temporary structure can be used as an external scaffold, an indoor working scaffold, or the like.
A stand for events, a rolling tower, and the like can be constructed.

[0045]

As described above, according to the present invention, there is provided a support in which flanges with holes are fixed at predetermined intervals in the vertical axis direction and a horizontal pipe in which fittings for connecting the flanges to both ends are mounted. It consists of a brace member with two diagonal members that can be arranged in the lower part of the spread and pivoted to the ends of the diagonal members, and a scaffold plate that passes between the horizontal pipes of the opposing brace members. The brace members are
The diagonal connection fitting can be connected to the lower flange while the connection fitting for the horizontal pipe is connected to the upper flange, and when constructing a temporary structure, the bracing of adjacent spans for each span of this temporary structure Since the members are arranged so that a step is formed vertically, the vertical arrangement of the horizontal pipes connecting the adjacent columns is alternately arranged at half-pitch intervals on both sides, thereby reducing the buckling length of the columns by half. As a result, the load bearing strength can be greatly improved.

Further, since the brace member has a structure in which two diagonal members which can be arranged in the lower part of the horizontal pipe are pivoted, there is no obstacle in the lower center of the brace member, and the brace member is placed on the scaffold plate. A continuous work passage can be secured, workability can be improved, and the number of constituent members can be reduced by coupling the horizontal pipe and the diagonal member.

Further, by arranging the bracing members of the adjacent spans so as to have a vertical step every one span of the temporary structure, the vertical spacing between the adjacent scaffolding plates can be reduced by half, thereby shortening the length of the stairs. The weight and weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a shoring constructed as a temporary structure.

FIG. 2 is a perspective view of a shoring constructed as a temporary structure.

FIG. 3 is a perspective view showing a main part of a shoring constructed as a temporary structure.

FIG. 4 is a front view showing an intermediate state of a shoring to be constructed as a temporary structure.

FIG. 5 is a side view of the above.

6 (A) and 6 (B) are plan views showing different arrangement states of the scaffolding plate of the shoring work.

FIGS. 7A to 7E are front views showing different examples of a support, and FIG. 7F is a front view of a jack base.

FIG. 8A is a front view of a brace member, and FIG. 8B is an enlarged front view showing a state in which the brace member is connected to a support.

9A is a front view showing a reinforcing horizontal member, FIG. 9B is an enlarged front view showing an end structure of the horizontal member, and FIG. 9C is an enlarged plan view of FIG.

FIG. 10 is a front view of a horizontal member.

FIG. 11A is a front view showing a bifurcated bracket,
(B) is the bottom view

12A is a vertical front view of a coupling fitting, FIG. 12B is a vertical front view showing a state in the middle of coupling to the flange, FIG. 12C is a vertical front view showing the coupling state, and FIG. Top view of the connected state

FIG. 13 is an explanatory view showing a connection operation of a support.

FIG. 14 is an explanatory view showing a connection work of a conventional column.

FIG. 15 is an explanatory view showing the occurrence of buckling of a conventional shoring.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jack base 2 Prop 3 Brace member 4 Scaffolding plate 5 Stairs 6 Reinforcement horizontal member 7 Bifurcated bracket 8 Large undertaking 9 Horizontal member 10 Flange 14 Joint fitting 15 Horizontal pipe 17 Diagonal member

Claims (3)

[Claims] 1. A support having fixed flanges with holes at predetermined intervals in the vertical axis direction, which can be successively reconnected, and fittings for connecting the flanges to both ends, and connecting the supports upright on both sides. In the middle of the horizontal pipe, two diagonal members are pivoted so that they can be arranged in the lower part, and a brace member with a fitting with a flange attached to the end of this diagonal member and a brace member facing the It consists of a scaffold plate that passes between the horizontal pipes, and the brace member is characterized in that the connecting fittings of the diagonal material can be connected to the lower flange while the connecting fittings of the horizontal pipe are connected to the upper flange. Temporary structure. 2. A support having fixed flanges with holes at predetermined intervals in the vertical axis direction and capable of successively replenishing the support, and connecting fittings to upper flanges attached to both ends, and connecting supports upright on both sides. In the middle of the horizontal pipe to be made, two diagonal members are pivoted so that they can be placed in the lower spread,
A pair of columns that are erected in four directions at predetermined intervals using a brace member in which a fitting for connecting to a lower flange is attached to an end of the diagonal member, and a scaffold plate that bridges between horizontal pipes of the opposed brace members. When a temporary structure is constructed by connecting the struts at the facing portions of the temporary structure with a brace member and spanning a scaffold plate between the horizontal pipes of the opposed brace members, a span adjacent to each span of the temporary structure A method for constructing a temporary structure, characterized in that the brace members are arranged so that a step is formed vertically. 3. The buckling strength of the end support is improved by connecting the lower end portions of the diagonal members of the brace member with a horizontal material after connecting the support post with a brace member. The construction method of the temporary structure described in the above.