JPS63583B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a concrete wall and an apparatus for constructing the same, and is mainly used for constructing a concrete wall in a narrow space where double-sided construction is completely impossible. In order to expand the interior space of a newly constructed building, when constructing a concrete wall very close to the wall of an existing adjacent structure, construction work that involves constructing the formwork while being able to see the inside of the building is important. The present invention relates to a method for constructing a frame, a concrete wall that can be dismantled and can withstand reuse, and an apparatus for constructing the same.

Conventionally, for example, when constructing a new building, in order to expand its interior space, it was sufficient to position the exterior wall as far outside as possible, but when there is an existing structure on adjacent land, Since it was necessary to set up a frame for the formwork for wall construction and a designated work space with a width of about 50 cm for demolition, the internal volume inevitably had to be narrowed to some extent. . Therefore, the PC board fixing method that was adopted to solve this problem is extremely convenient because it can be constructed without knowing the interior of a newly constructed building, and can be implemented regardless of whether there is an existing structure. However, this PC board pasting and fixing method is
Since the PC board itself is expensive, the construction cost is significantly higher than the formwork construction method that involves pouring and solidifying concrete material.Also, it is not popular because it lacks robustness after construction. Furthermore, the formwork for pouring concrete materials is mainly made of plywood, and although it is assembled by drilling through holes for the insertion of connecting bolts to support the formwork, it gradually becomes weaker with each use. This made it extremely difficult to reuse it, which in turn was one of the causes of increased construction costs.

Therefore, the present invention was created in view of the above points, and as a result of numerous prototypes and experiments, it is possible to understand the inside of a new structure to be constructed without setting up a work space between it and an existing structure. We succeeded in developing a construction method and equipment that enable the construction and dismantling of structures by focusing on these tasks, and the construction of structures that does not require skilled workers and can be carried out easily and neatly.

In other words, the method for constructing a concrete wall according to the present invention is to construct a column having an approximately hat-shaped cross section with an engaging flange along its opening edge, and connecting pieces with connecting holes extending flush to both ends of the column. First, the outer columns are erected on the installation surface with a predetermined spacing between them, with the openings having a generally hat-shaped cross section facing outward. Next, on the installation surface, the inner pillars are arranged in parallel with the outer pillars, with the openings having a roughly hat-shaped cross section facing inward, and the inner pillars are also arranged in an upright manner. A suitable adjustment member is interposed between the connecting piece of the pillar and the installation surface to adjust the height of the inner pillar with respect to the outer pillar, and then the inner pillar is placed between the facing outer pillar and inner pillar. The outer column and inner column can be separated from each other by a joint member inserted in the collar, and are fastened and fixed in a vertical frame shape, and then,
Between the outer columns, the outer panels are prevented from coming off by the engaging flanges of each outer column and the outer surfaces of the left and right side walls. The inner panels are inserted and supported by the side walls to prevent them from coming off, and reinforcement is placed between the outer and inner panels. Concrete is then poured and allowed to harden. After that, the inner columns are inserted and supported. Remove the joint member from the gap to free the outer column, inner column, and outer panel, respectively, and then release the inner column and inner panel into a peel-off type, while making the outer column and outer panel into a peel-off type and move upward. The construction device, which involves lifting and dismantling, and which is directly used to carry out this construction method, is a column with an approximately hat-shaped cross section and an engaging flange along its opening edge facing outward. and an outer pillar that has connection pieces with connecting holes extending flush on both ends thereof and is erected at appropriate intervals on the installation surface;
It is a column with an approximately hat-shaped cross section with an engaging flange along the edge of its opening facing inward, and has connection pieces with connecting holes extending flush on both ends. an inner column that is erected to face the outer column; and a connection piece between the installation surface and the inner column to adjust the height of the inner column with respect to the outer column when the inner column is erected. an adjustment member interposed between the outer and inner columns, a collar disposed between the outer column and the inner column, and a joint member consisting of a connecting bolt that is inserted into the inner column and the collar without the inner column and is screwed to the outer column; An outer panel is inserted and supported between the outer columns with both edges in contact with the engagement flange of the outer column and the outer surface of the left and right side walls, and an outer panel whose both edges are in contact with the engagement flange of the inner column and the outer surface of the left and right side walls. an inner panel that is inserted and supported between the inner columns while being in contact with the inner panel; a single tube that is in contact with the outer surface of the inner panel; a presser that presses the single tube against the outer surface of the inner panel; and the joint member. It consists of a fastening support member that is detachably connected to the rear end.

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

Reference numeral 1 shown in the figure indicates outer columns that are arranged vertically in parallel with a predetermined interval between them on the installation surface F on which the concrete wall C to be constructed is installed. It is formed into a substantially hat-shaped cross section with an engaging flange 2 extending along its opening edge facing outward. The outer column 1 itself is made of bent steel strips of appropriate thickness, extruded aluminum to reduce weight, etc., and will not be distorted by the load of concrete material poured after the structure frame or other factors. Reinforcing members 3 are fixed at appropriate intervals so as not to be shaped. The reinforcing member 3 shown in the figure is fixed by welding as a plate-shaped member having a substantially T-shape in plan, with a narrow part inserted into the space of the outer column 1 and a wide part spanning the engagement flanges 2. (See Figure 5). Of course, other structures may be used as long as the outer column 1 itself can be reinforced. For example, a round bar may be installed between the left and right side walls of the outer column 1, or a rod member with a substantially U-shaped planar structure may be used with a straight opening. Appropriate design changes are possible, such as mounting the engaging flange 2 so that it is sandwiched between both edges, or applying beading to the bent portion.

On the other hand, inner columns 11 facing the outer column 1 and having substantially the same structure as the outer column 1 are arranged in an upright manner with the engagement flanges 12 along the opening edges thereof facing inward. Ru. In addition, 13 is a reinforcing material.

These outer columns 1 and inner columns 11 can be erected on the installation surface F by connecting connecting pieces 5 and 15 with connecting holes 4 and 14 extending flush with the upper and lower ends of the outer columns 1 and inner columns 11, respectively. It is done using That is, as shown in FIG. 2, the outer structure is placed on a crosspiece 29 placed on a large support member 21 fixed with an anchor bolt 20 to the side of the frame having an installation surface F, which is the top surface of an existing foundation or concrete wall. An adjustment jack 2 that can freely adjust the height of the column 1 and also serves as an adjustment member arranged on the installation surface F.
Inner columns 11 are erected on the outer columns 1, and the heights of the inner columns 11 are adjusted with respect to the outer columns 1. Then, as will be described later, when inserting and supporting the outer panel 51 and the inner panel 55 between the outer columns 1, 1 and the inner columns 11, 11, respectively, after each column 1, 11 is erected in advance,
Since the outer panel 51 and inner panel 55 are inserted and supported, anyone can do this work without requiring a skilled person.Furthermore, the height of the inner column 11 relative to the outer column 1 can be adjusted using the adjustment jack 25. Since the pillars can be adjusted in a desired manner, each pillar can be erected in a desired state, and each panel 51, 55 can also be inserted and supported in a good manner, which in turn improves the finished condition of the concrete wall. The large undercarriage member 21 has a main body portion 22 having a planar substantially groove shape with an adjustment slot 23 opened in the inner wall.
and a substantially L-shaped side support portion 24 connected to the upper part of the main body portion 22, and an adjustment jack 25.
A nut 28, which abuts and supports the outer surface of the connection piece 15, is screwed to a screw portion 27 fixed to a mounting portion 26 having a substantially L-shaped side surface so as to be movable forward and backward.

30 is a band-shaped internal fixing member mounted on the outer columns 1 in order to make the distance between them constant, and a joint member 30 described later is inserted therethrough.
By being pressed by the end of the collar 35, it is firmly fixed to the outer surface of the inner wall of the outer column 1.

The outer column 1 and the inner column 11 are opposed to each other at an interval corresponding to the thickness of the concrete wall C to be constructed, and a collar 35 is placed between them 1 and 11.
It is configured to be separable and fastened and fixed in the form of a vertical frame by a joint member 40 inserted into the frame.

Therefore, the collar 35 is buried next to the concrete material to be poured after it solidifies, and since the collar 35 only needs to be used to guide the insertion of the joint member 40, the collar 35 has sufficient strength to withstand the pouring pressure of the concrete material. A synthetic resin pipe with a specified diameter is used. In addition, the vertical frame fixation of the outer column 1 and inner column 11 is as follows:
Since it is extremely close to the wall surface of the existing structure T, it is difficult to use the outer column 1 alone or to use it as a reference, so it is implemented using the inner column 11 or it 11 as a reference. There are many. For example, in the case of a structure such as a building, a planar L-shaped corner panel (not shown) placed inside the wall may be used to construct the corner part of the wall; Wade, inner pillar 11
The collar 35 and the joint member 40, and further At the same time, the outer column 1 is also fixed via the internal fixing member 30. In the illustration, the frame of the entire inner wall is constructed by integrally constructing a crosspiece 36 suspended horizontally between the upper ends of the inner pillars 11 and a ceiling slab panel 37 fixed by the crosspiece 36. The inner column 11 is fixed by the supporting force at the time. Of course, the inner column 11 and even the outer column 1
Of course, the fixing of the vertical frame is not limited to the above example, and various fixing methods can be adopted depending on the construction situation at the site.

The joint member 40 includes a connecting bolt 41 that is visible inside the inner column 11, is inserted into the inner column 11 and the collar 35, and is screwed to the outer column 1, and further includes:
Specifically, as shown in FIG. 4, the front end is inserted into a through hole 16 drilled in the inner wall of the inner column 11, and the front end is screwed into a nut 16 fixed to the inner wall of the outer column 1. It has a lockable connecting bolt 41 and an abutting flange 43 that comes into contact with the inner surface of the inner wall of the inner column 11,
A connecting cylindrical body 42 is connected to the rear end of the connecting bolt 41 by screwing means or the like, and the connecting bolt 41 is inserted through the connecting cylinder 41 so that it is covered with the connecting cylinder 41, and the small diameter front end is brought into contact with the end of the collar 35. It consists of a hollow intermediate body 44 having a substantially truncated conical side surface whose large diameter rear end abuts against the outer surface of the inner wall of the inner column 11. That is, the connecting bolt 41 is interposed between the outer column 1 and the inner column 11 with the collar 35 and the intermediate body 44 interposed between them.
Insert the connecting bolt 4 into the inner column 11, and insert the connecting bolt 4.
1. By screwing the contact flange 43 of the connecting cylinder 42 at the rear end into the outer column 1 until it strongly contacts the inner column 11, the outer column 1 and the inner column 11 are connected to each other by the joint member 40.
The agreement will be concluded.

At this time, the large-diameter rear end of the intermediate body 44 covers the through-hole 16 into which the connecting bolt 41 was inserted, so that the wall C cannot see through the through-hole 16 when pouring concrete. The joint member 40 is prevented from seeping into the inner column 11, and the removal work when the joint member 40 is disassembled is facilitated.

In addition, the outer column 1 and the inner column 11 are fastened together as described later, after inserting and supporting the outer panel 51 between the outer columns 1, connecting bolts 4 with an intermediate body 44 attached to the rear end of the outer panel 51 are inserted and supported.
1 is inserted into the collar 35 and screwed to the nut 16, and after performing a predetermined reinforcement work, the inner column 11 is brought into contact with the intermediate body 44, and then the connecting cylinder 42 This may be done by tightening the screws.

Next, between the outer columns 1 is an outer panel 51 which is prevented from coming off by the outer columns 1 themselves, and between the inner columns 1
Inner panels 55, which are prevented from coming off by the inner columns 11 themselves, are inserted and supported between the inner columns 11, respectively. The outer panel 51 and the inner panel 55 are made by bending the periphery of a rectangular sheet material having a width corresponding to the spacing between the outer columns 1 or inner columns 11 to form reinforcing edges 52 and 56, and They have substantially the same structure with reinforcing bars stretched over the material surfaces, and may be connected to each other through connecting holes drilled as appropriate in the reinforcing edges 52 and 56 and appropriate connecting tools. In addition, it is extremely effective to make the outer panel 51 and the inner panel 55 made of aluminum to reduce their weight so that they can be easily handled, and if necessary, a patterned rubber plate is attached and fixed. By keeping it, wall C
It is also possible to provide an uneven pattern on the surface.

Therefore, the outer panel 51 to the outer column 1, the inner column 11
The insertion and support of each of the inner panels 55 into, for example,
As shown in the figure, the support pieces 7 and 17 provided on the side edges of the engagement flanges 2 and 12 of the outer column 1 and inner column 11 are placed on the inner sides of both edges of the outer panel 51 and the inner panel 55, respectively. This is done by bringing both edges into contact with the outer surfaces of the left and right side walls of the outer column 1 and the inner column 11, respectively. That is, as shown in FIG. 3, the outer panel 51 and the inner panel 55 can be pulled out to the outside through the engaging flanges 2 and 12, and the outer panel 51 can be pulled out in the inner direction. The inner panel 55 can be removed inward by the internal fixing member 30 mounted between the outer columns 1, and the inner panel 55 can be removed inward by the internal fixing member 30 mounted between the inner columns 11, for example. (not shown).

On the other hand, before the outer panel 51 and the inner panel 55 are inserted and supported, or at least before the inner panel 55 is inserted and supported, a predetermined reinforcing reinforcement 45 is provided, and the inner panel 55 to the inner column 11 are A single tube 60 that comes into contact with the outer surface of the panel 55, a presser 63 that presses the single tube 60 against the outer surface of the inner panel 55, and a fastening support member 61 that is detachably connected to the rear end of the joint member 40. Then, it will be firmly fixed.

As shown in FIG. 2, the fastening support member 61 is inserted between a pair of single tubes 60 arranged in parallel so as to be in contact with the outer surface of the inner panel 55, and is attached to the rear end of the joint member 40. The connecting cylinder 42
A fastening bolt 62 connected to the
A holding tool 63 is slidably inserted into the fastening bolt 62 and straddles the pair of single pipes 60.
A nut 64 is screwed to the rear of the fastening bolt 62 so as to be able to move forward and backward in order to press the outer surface of the holding tool 63.
It consists of Therefore, this fastening support member 61
As a result, the pair of single pipes 60 can be fixedly attached to the outer surface of the inner panel 55 and the outer side of the inner column 11 in a press-contact state, thereby preventing their disassembly and collapse.

Next, to explain the case in which the concrete construction of the present invention is carried out according to the procedure of an example, first, using the large support member 21 on the outside of the installation surface F, the outer pillar 1 is placed on it. The outer column 1 is fixed upright, and the internal fixing fitting 30 mounted between them is fixed by the connecting bolt 41 of the joint member 40 that is inserted into the collar 35 and screwed to the outer column 1. A predetermined interval is set between them. Next, the outer panels 51 are slidably inserted between the outer pillars 1 from above, for example, to support them, and reinforcing bars 45 are provided. On the other hand, an inner panel 55 is inserted and supported between the inner columns 11 arranged in parallel on the installation surface F so as to be integrated, and the inner panels 55 are erected to arrange the inner columns 11 to face the outer column 1, and While adjusting the height using the adjustment jack 25 arranged on the installation surface F, the rear end of the connecting bolt 41 is inserted and removed from the through hole 16 of the inner column 11, and the connecting cylinder 42 is inserted into the outgoing part. By tightening the screws, the outer column 1 and the inner column 11 are connected to each other. In this case, after the inner column 11 is fastened to the vertical frame of the inner column 11 and the inner panel 55 via the joint member 40, the inner panel 55 may be inserted and supported.
Thereafter, the upper end of the inner column 11 is firmly fixed via the crosspiece 36 and the like, and the single pipe 60 is further clamped to the outer surface of the inner column 11 and the inner panel 55 by the fastening support member 61. Concrete is poured between the outer panel 51 and the inner panel 55 fixed to the vertical frame in this way, and after sufficiently curing and solidifying, the fastening support member 61 and the single pipe 60 are removed, and the inner column 11 is removed. By removing the joint member 40, the outer column 1 and the inner column 11, which were fastened to each other, are made free. Therefore, first, the inner column 11 and the inner panel 55 are peeled off, and then, if necessary, the outer column 1 and the outer panel 51 are peeled off by applying an appropriate impact. It is dismantled by being hoisted up to the wall, and in this way, a predetermined concrete wall can be constructed.

In addition, by constructing walls for each floor in this way and repeating this process, it is possible to construct multiple floors, and each of the outer column 1 and inner column 11 has a connection piece formed at both ends. 5, 15 to connect the outer columns 1 to each other for the height of the wall C,
The length of the wall C can be adjusted by setting the distance between the inner columns 11 and the widths of the outer panel 51 and the inner panel 55.

Therefore, when constructing a concrete wall C, the formwork can be constructed by one-sided construction only when the inside is known, and therefore, there is no need for workers to construct an upright frame between the existing structure T and dismantle it. There is no need to set up a separate work space, and the new structure can be built very close to the existing one, making it possible to enlarge the internal space and make effective use of the site area.

In addition, only the collar 35 remains buried in the concrete wall C after construction, and many members used in construction, such as the outer column 1,
The inner column 11, the outer panel 51, the inner panel 55, the joint member 40, the single pipe 60, and the fastening support member 61 can all be reused. In particular, the joint member 40 for fastening in the inner and outer directions is 1,
Since it is inserted into the inner column 11 and fixed with screws, there is no need to drill any penetration holes in the outer panel 51 and inner panel 55, and there is no deterioration in its strength. This enables a significant reduction in costs and is extremely inexpensive compared to the conventional method of attaching and fixing PC boards.

Furthermore, each component for construction can be prepared as standardized items, making it convenient to handle, and it is possible to connect and assemble each component on site without performing secondary processing, increasing efficiency. Can often perform tasks extremely quickly.

On the installation surface F, an outer pillar 1 facing each other in the inner and outer directions,
The inner columns 11 are fastened and fixed to each other by a joint member 40, and the outer column 1 has an outer panel 5 that is prevented from coming off by using its engagement flange 2.
1, and the inner column 11 also has its engagement flange 12.
The inner panel 55 is prevented from coming off by using
The inner column 11 and the inner panel 5 are inserted and supported respectively.
Since the inner part of the concrete member 5 is clamped with a single pipe 60 and a fastening support member 61, the cross section of both the outer column 1 and the inner column 11 is approximately hat-shaped, and when concrete material is poured, the It will not be dismantled even by pressure or impact, and can be firmly supported.

Then, the engaging flanges 2, 12 are attached to the edges of the opening.
an outer column 1, which is a column with a generally hat-shaped cross section, and has connection pieces with connecting holes extending flush on both ends thereof;
An appropriate adjustment member is interposed between the connection piece 15 of the inner column 1 and the installation surface F to adjust the height of the inner column 11 with respect to the outer column 1, and to adjust the engagement of each outer column 1. The outer panel 51 is prevented from coming off by the mating flange 2 and the outer surfaces of the left and right side walls, and between the inner columns 11,
The engagement flanges 12 of the inner pillars 11 and the outer surfaces of the left and right side walls prevent the inner panels 55 from coming off, and the inner panels 55 are inserted and supported.
The inner panel 55 is connected to outer columns 1, 1 and inner columns 11, 1, respectively.
When inserting and supporting the pillars 1 and 11 between the pillars 1 and 1, the outer panel 51 and the inner panel 55 are inserted and supported after the pillars 1 and 11 are erected in advance, so anyone can do this work without requiring a skilled person. , also, for the outer column 1, the inner column 1
Since the height of the column 1 is adjusted by the adjustment jack 25, each column can be erected in a desired state, and each panel 51, 55 can also be inserted and supported there in a good manner.
This also improves the finished condition of the concrete wall.

Both the outer pillar 1 and the inner pillar 11 have their own openings in the wall C.
By being directed outward, the smooth outer surface of the inner wall becomes the wall C, and the smooth surfaces of both the outer panel 51 and the inner panel 55 become the wall C, so that the wall being constructed The body C surface has few irregularities, which has the advantage of facilitating cosmetic treatment.

A joint member 40 between the outer column 1 and the inner column 11 that are arranged in parallel and facing each other in an upright manner.
Fastening and fixing via
Both operations, such as pressing and tightening using the fastening support member 61, can be performed only by knowing the inside of the structure to be constructed, so the workability is extremely good. Also,
For its disassembly, the inner column 11 and the inner panel 55 can be demolded by removing the single pipe 60 and the fastening support member 61, and then the joint member 40. At the same time, the outer column 1, which becomes free, and Outer panel 51
Since it is made into a peelable type by lifting it upwards, it is sufficient for the dismantling work on the outside to simply secure the space for lifting it, and in any case,
Outside, there is no need to secure a work space for workers.

Furthermore, it can be used not only when constructing a wall C in a narrow space where double-sided construction is completely impossible, but also when constructing a partition wall. Since there are no protruding objects on the walls, it keeps the work environment neat and tidy even in complicated workplaces, and greatly contributes to the realization of a clean working environment.

Therefore, according to the present invention, when constructing a concrete wall, the formwork can be constructed on one side, and demolition can be carried out mainly from inside, so that existing adjacent structures are not damaged. It is possible to construct the concrete wall of a new structure very close to the wall surface, and it can be carried out easily and quickly on site without any troublesome effort. Since only a few components are used, and many of the construction components can withstand reuse, the construction cost is extremely low.In addition, it is a highly versatile construction that can be used to construct ordinary partition walls. It is effective.

As described above in detail about the concrete development contents of the new concept regarding the concrete wall construction method and its construction device, the embodiments of the present invention,
The application examples and the effects thereof are obvious, and it is particularly noteworthy that the construction can be easily and elegantly carried out without requiring a skilled person. Further, from the above explanation, it is understood that those skilled in the art can easily modify the shapes and structures to other shapes and structures, and the scope of the present invention is not limited to the above-mentioned embodiments and application examples. is also clear.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially omitted cross-sectional view schematically showing the overall configuration, and FIG.
The figure is a partially omitted longitudinal cross-sectional view with a part cut away during construction, Fig. 3 is a partially omitted cross-sectional view, Fig. 4 is a cross-sectional view of the main part showing the fixing of the inner column, and Fig. 5 is a partially omitted longitudinal cross-sectional view. FIG. 2 is a perspective view of a main part showing the shape of an outer column or an inner column. T... Existing structure, C... Concrete wall, F... Installation surface, 1... Outer column, 2... Engagement flange, 3... Reinforcement material, 4... Connecting hole, 5... Connection piece , 6... Nut, 7... Support piece, 11... Inner column, 12... Engagement flange, 13... Reinforcement material, 1
4... Connection hole, 15... Connection piece, 16... Penetration hole, 17... Support piece, 20... Anchor bolt,
21... Large underwriting member, 22... Main body part, 23...
... Adjustment long hole, 24 ... Support part, 25 ... Adjustment jack, 26 ... Placement part, 27 ... Threaded part, 28 ...
... Nut, 29 ... Crosspiece, 30 ... Internal fixing member, 35 ... Collar, 36 ... Crosspiece, 37 ... Ceiling slab panel, 40 ... Joint member, 4
1... Connecting bolt, 42... Connecting cylinder, 43...
Contact flange, 44... Intermediate body, 45... Reinforcement reinforcement, 51... Outer panel, 52... Reinforcement edge, 55...
...Inner panel, 56...Reinforced edge, 60...Single pipe, 6
1... Fastening support member, 62... Fastening bolt, 63
...Presser, 64...Natsuto.

Claims (1)

[Scope of Claims] 1 A column having an approximately hat-shaped cross section with an engaging flange along its opening edge, and an outer column and an inner column having connection pieces with connecting holes extending flush on both ends thereof. First, on the installation surface, outer columns with a predetermined spacing between them are arranged in an upright manner with the openings having a substantially hat-shaped cross section facing outward, and then , on the installation surface, the inner pillar is placed opposite the outer pillar, and the opening having a substantially hat-shaped cross section faces inward, and the inner pillar is also arranged in an upright manner, and at the same time, the connecting piece of the inner pillar is installed. Adjust the height of the inner column relative to the outer column by interposing an appropriate adjustment member between the surface and the joint member inserted into the collar placed between the facing outer column and inner column. The outer and inner columns are separable from each other and fastened and fixed in a vertical frame shape, and then the outer columns are connected by engaging flanges of each outer column and the outer surfaces of the left and right side walls. The outer panel is inserted and supported between the inner columns to prevent the outer panel from coming off, and the inner panel is inserted and supported between the inner columns by the engaging flanges of the inner columns and the outer surfaces of the left and right side walls to prevent the outer panel from coming off. After placing reinforcing bars between the inner panels, concrete was poured.
After curing and solidifying, the inner column was identified and the joint member was removed to free the outer column, inner column, and outer panel, respectively, and then the inner column and inner panel were peeled off, while the outer column, A concrete wall construction method characterized by peeling off the outer panel, lifting it upward, and dismantling it. 2 A column with an approximately hat-shaped cross section with an engaging flange along its opening edge facing outward, and a connecting piece with a connecting hole extending flush on both ends of the column. outer pillars erected at appropriate intervals,
It is a column with an approximately hat-shaped cross section with an engaging flange along the edge of its opening facing inward, and has connection pieces with connecting holes extending flush on both ends. an inner column that is erected to face the outer column; and a connection piece between the installation surface and the inner column to adjust the height of the inner column with respect to the outer column when the inner column is erected. an adjustment member interposed between the outer and inner columns, a collar disposed between the outer column and the inner column, and a joint member consisting of a connecting bolt that is inserted into the inner column and the collar without the inner column and is screwed to the outer column; An outer panel is inserted and supported between the outer columns with both edges in contact with the engagement flange of the outer column and the outer surface of the left and right side walls, and an outer panel whose both edges are in contact with the engagement flange of the inner column and the outer surface of the left and right side walls. an inner panel that is inserted and supported between the inner columns while being in contact with the inner panel; a single tube that is in contact with the outer surface of the inner panel; a presser that presses the single tube against the outer surface of the inner panel; and the joint member. A concrete wall construction device comprising a fastening support member detachably connected to a rear end.