JP2001311247A - Construction method for concrete structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a concrete structure capable of firmly assembling a form with simple work within a short period of time and also easily carrying out the disassmbly of the form. SOLUTION: When the concrete structure is constructed, at least strut materials (10) extended in the vertical direction are used to construct a form panel supporting structure body as aggregate of the concrete structure, at the same time, the form surfaces of form panels (40) are mounted to the strut materials of the form panel supporting structure through interval holding members (20) for roundly placing concrete between both of them, and the concrete is placed on the form panel supporting structure side of the form panels to construct the concrete structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a concrete structure, and more particularly to a method of constructing a formwork firmly in a short time with a simple operation, and also enabling a simple dismantling of the formwork. About.

[0002]

2. Description of the Related Art For example, when constructing a wall of a building structure or constructing a retaining wall on a slope of the ground, assembling a formwork,
A method is adopted in which reinforcing bars are arranged between formwork as needed, concrete is poured and solidified, and then the formwork is dismantled.However, the formwork panel is deformed by concrete pressure. Or, if the spacing of the molds is changed due to misalignment of the molds, construction as designed cannot be performed. Therefore, while a large number of separators are inserted through opposed molds to keep the space between the molds constant, the formwork panel is reinforced along a steel pipe end on the back surface. .

[0003] There has also been proposed a construction method in which a part of a wall surface is formed by form panels after concrete is cast to eliminate the work of dismantling the form (Japanese Patent Application Laid-Open No. 08-0808).
-60679, JP-A-09-268580, etc.).

[0004]

However, in the former construction method, the work of mounting the separator and the end of the steel pipe requires skill, and it takes time to assemble the formwork. In addition, when arranging reinforcing bars, it is necessary to install reinforcing bars after assembling the formwork,
Such arrangement work also required skill. In addition, when dismantling the formwork, it is necessary to remove the assembled steel pipe ends, separate the formwork, and break the protruding parts of many separators by hitting them with a hammer or the like. There was also the problem of this.

[0005] On the other hand, although the dismantling work is unnecessary in the latter construction method, it is necessary to assemble the formwork firmly so as to withstand the concrete pressure when assembling the formwork. Therefore, a formwork panel in which a reinforcing plate is embedded is used. There is a problem that the assembling work of the formwork is very complicated, for example, it is necessary to reinforce the formwork panel by an angle and firmly connect the opposing formwork panels to each other using a connecting member.

The present invention has been made in view of the above problems, and enables a mold to be firmly assembled in a short time in a simple operation.
In addition, it is an object of the present invention to provide a method of constructing a concrete structure capable of easily dismantling a formwork.

[0007]

Accordingly, the construction method of a concrete structure according to the present invention uses at least a column member extending in a vertical direction when constructing a concrete structure, and forms a mold for forming an aggregate of the concrete structure. Along with constructing the frame panel supporting structure, the form surface of the form panel is attached to the column material of the form panel supporting structure via a spacing member for allowing concrete to flow between them,
A concrete structure is constructed by casting concrete on the form panel supporting structure side of the form panel.

One of the features of the present invention is that a formwork panel supporting structure is constructed by using at least a support member, a formwork panel is attached to the support member via a spacing member, and concrete is cast. The point is that a concrete structure is constructed. As a result, the form panel can be easily and reliably attached to the column material, so that the time required for building a concrete structure can be greatly reduced.

Another feature of the present invention resides in that the formwork panel is attached to the column member via the spacing member. As a result, the concrete goes around between the form panel and the column material, and the form panel supporting structure can be reliably embedded in the concrete wall surface. When a steel frame is exposed on a steel or reinforced steel concrete wall, not only the appearance of the wall is poor, but also rainwater or the like penetrates into the wall, and the strength of the wall is easily reduced. Since the panel supporting structure can be buried reliably, not only good appearance but also desired strength of the concrete structure can be guaranteed.

Another feature of the present invention resides in that the formwork panel supporting structure is buried in concrete and used as an aggregate. Thereby, the desired strength of the concrete structure can be secured without arranging the reinforcing bars and the like, and the strength of the concrete structure can be further increased by arranging the reinforcing bars.

More specifically, in the construction method for a concrete structure according to the present invention, when constructing a self-supporting concrete structure, a pillar material is provided on at least both side ends of the mold surface of the lowermost formwork panel. And a support member for erecting the support member, and the lowermost form panels are arranged so as to face each other at an interval corresponding to the thickness of the concrete structure. Connecting the opposing support members to each other by connecting beams, and placing concrete between the pair of lowermost form panels, and forming a form panel comprising at least the support members and the connection beams. Constructing a lowermost concrete structure part using the supporting structure as an aggregate; and forming a formwork panel on the support member above the lowermost concrete structure part via a spacing member. Mounting, characterized by comprising the steps of constructing a concrete structure portions of the upper and Da設 concrete, the.

In the above description, the opposing struts are directly connected by the connecting beams. However, in the case of a large concrete structure, for example, a dam dam, the distance between the opposing struts becomes very large, and the connecting beams are very large. It is difficult to directly connect the strut material. Then, you may make it connect an auxiliary | assistant support | pillar material and an auxiliary | support auxiliary | support material by a connection beam, respectively, using an auxiliary | support column material.

That is, in the construction method of a concrete structure according to the present invention, when constructing a self-supporting concrete structure, a pillar material is provided between at least both end portions of the mold surface of the lowermost form panel between the two. A step of attaching via a spacing member for allowing concrete to flow around, and connecting an auxiliary column member at an interval by a connecting beam to a side opposite to the form panel of the column member, and the column member and the auxiliary column member And erecting, the step of arranging the lowermost form panels facing each other at an interval corresponding to the thickness of the concrete structure, and placing concrete between the pair of lowermost form panels, A step of constructing a lowermost concrete structure portion using a form panel supporting structure composed of at least the support members, auxiliary support members, and connecting beams as an aggregate; Attach the formwork panels via a spacing member above the support member of the concrete structural part, characterized by comprising the steps of constructing a concrete structure portions of the upper and Da設 concrete, the.

[0014] As described above, when the pillar members are attached to both ends and the form panels arranged opposite to each other are connected by the connecting beams, and the concrete is cast, the lowermost concrete structure portion is constructed. The concrete panel can be firmly held in the specified vertical direction, and the formwork panel can be easily and securely attached to the pillar material when constructing the concrete structure above, so the time required for building the concrete structure Can be significantly reduced.

Further, it is also possible to assemble the support members above the lowermost concrete structure portion after constructing the lowermost concrete structure portion, but to assemble the entire support members before constructing the lowermost concrete structure portion. Is also good. In particular, when the entire support member is assembled in advance, the reinforcing bars can be arranged using the connecting beams.

The construction method of the present invention can be applied to a self-supporting concrete structure, for example, a building such as a pillar or a wall of a building structure, an outer wall of a house, a shoulder wall of a road, or a bank of a dam. Then, the present invention can be applied to the construction of a retaining wall formed on a ground wall surface such as a steep slope of cut or embankment or a steep slope such as a mountain, or a wall surface of a tunnel. Moreover, in this case, the strut material functions as a structural material,
The strength can be increased as compared with a normal retaining wall.

That is, in the construction method of a concrete structure according to the present invention, when constructing a retaining wall type concrete structure covering the ground wall surface, at least both side ends of the mold surface of the lowermost form panel are supported by pillar materials. And a step of mounting the supporting member by erecting the supporting member, and setting the space between the formwork panel and the ground wall corresponding to the thickness of the concrete structure. A step of placing concrete, placing concrete between the formwork panel and the ground wall surface, and constructing a lowermost concrete structure part using at least the strut material as an aggregate, and a step of constructing the lowermost concrete structure Attaching a formwork panel to a support member above the structural part via a spacing member and pouring concrete to construct an upper concrete structural part. Characterized in that was.

When building a retaining wall type concrete structure, the auxiliary strut material can be used.

That is, in the construction method of a concrete structure according to the present invention, when constructing a retaining wall type concrete structure covering a ground wall, a pillar material is provided on at least both side ends of a mold surface of a lowermost form panel. Attaching a supporting column member at an interval by a connecting beam to a side opposite to the formwork panel of the supporting column member, and attaching the supporting column member to the opposite side of the supporting column member from the form panel by interposing a space between the supporting column member and the concrete. Erecting the material and the auxiliary struts and installing the form panel at an interval corresponding to the thickness of the concrete structure with respect to the ground wall, and placing concrete between the form panel and the ground wall. Constructing a lowermost concrete structure part using at least the above-mentioned strut material as an aggregate, and a spacing member on the above-mentioned strut material above the lowermost concrete structure part. Attach the formwork panels via, characterized by comprising the steps of constructing a concrete structure portions of the upper and Da設 concrete, the.

When a high concrete structure is to be constructed, a formwork panel is attached to a support member above the constructed upper concrete structure portion via a spacing member, and concrete is poured into the higher concrete structure portion. Is preferably repeated to construct a concrete structure having a predetermined height.

The shape of the spacing member is not particularly limited, and may be a rectangular parallelepiped, a column, or any other shape. However, if the spacing member needs to be removed from the concrete structure after solidification of the concrete, it is easy. It is preferably a shape that can be removed, specifically, a truncated cone or a truncated pyramid.

Although the spacing member may be made of any material, a material having low renewability with concrete is preferable in consideration of the case where the spacing member is removed.
Specifically, a metal material such as an iron-based material, a metal material whose surface is coated with a synthetic resin material (for example, urethane resin), a synthetic resin material, or the like can be used.

When the strut material is exposed from the upper end surface of the concrete structure, not only does it have a poor appearance, but also rainwater infiltrates therethrough and is likely to cause deterioration. Therefore, it is preferable to set the upper end of the pillar material of the uppermost concrete structure portion to be lower than the upper end edge of the form panel. In addition, one long pillar material may be used,
It is preferable to use short ones connected by a connecting tool or the like.

The pillar members are maintained at intervals by the lowermost formwork panel, and concrete is cast to construct a lowermost concrete structure portion. The lowermost concrete structure portions maintain the spacing between adjacent pillar members. However, if the laterally adjacent strut members are interconnected by a connecting member to maintain the lateral interval between the adjacent strut members, the interval between the strut members can be more reliably set to a desired value. Can be kept at intervals.

Further, if a fixture is devised, one support member may be attached to the form panel at one place. However, at least two places are provided on the form panel at intervals in the height direction. When the mounting is performed, the support member can be securely mounted on the form panel with a simple mounting tool in a predetermined direction.

When the form panel is attached to the upright support, it is desirable that the form panel can be easily attached in consideration of the workability of assembling the form. Therefore, the formwork panel is overlapped with the support member via the spacing member, a bolt is inserted through the insertion hole of the formwork panel and the support member, and the male screw portion of the bolt is screwed into the female screw portion provided on the support member. It is preferable to adopt a method in which the form panel is attached to the support member by means of this.

Further, in the construction method of the present invention, the formwork panels facing each other are connected to each other by connecting beams, and the strut members adjacent in the lateral direction are connected to each other by the connecting members. When necessary, the above-described connection beams and connection non-members can be used to easily arrange the reinforcement even by an operator who is not accustomed to the reinforcement arrangement work. That is, the reinforcing bars can be fixed to the connecting beams by welding or wire connection and the reinforcing bars can be arranged.

Further, in the above construction method, the formwork panel supporting structure is assembled using the formwork panel at the lowermost stage, but the formwork panel supporting structure is assembled in advance.
Even if the formwork panel is attached via a spacing member there, it is simpler than the conventional formwork assembling work, does not require skill in the work, and the formwork disassembly is also easy. is there.

That is, in the construction method of a concrete structure according to the present invention, when constructing a self-supporting concrete structure, a pair of support members are connected to each other by a form panel attached to the concrete structure via a spacing member. They are opposed to each other at an interval corresponding to the thickness of the structure, the opposed struts are connected to each other by connecting beams, and a plurality of pairs of struts are arranged at predetermined intervals in the lateral direction. Connecting the form panels with each other by a connecting member to form a structure for supporting the form panel; A step of mounting via a spacing member, a step of casting concrete between the opposed form panels, and a step of constructing a concrete structure portion using the form panel supporting structure as an aggregate. Characterized by comprising a.

In the construction method of a concrete structure according to the present invention, when constructing a self-supporting concrete structure, auxiliary strut members are connected to the strut members by connecting beams with connecting beams at intervals, and the above-mentioned strut members, A connecting beam and an auxiliary strut member are arranged at predetermined intervals in the horizontal direction, are interconnected by a joining member, and a form panel to which the plurality of strut members are attached via a spacing member is connected to each other. A step of assembling the form panel supporting structure by facing the structure so as to have an interval corresponding to the thickness of the concrete structure; and forming the form panel between supporting members of the form panel supporting structure. A step of attaching concrete via a spacing member for allowing the concrete to flow around, and placing concrete between the opposed formwork panels, and using the formwork panel supporting structure as an aggregate. Characterized by comprising the step of constructing the cleat structure portion.

Further, in the construction method of a concrete structure according to the present invention, when constructing a retaining wall type concrete structure covering a ground wall, a plurality of support members are arranged at predetermined intervals from each other, A step of assembling a formwork panel supporting structure by mutually connecting the strut members to be connected by a connecting member, and a formwork panel to which the formwork panel supporting structure is attached via a spacing member to the formwork panel supporting structure. A step of installing the structure so as to have an interval corresponding to the thickness of the concrete structure with respect to the ground wall surface; and A step of attaching concrete via a spacing member and placing concrete between the formwork panel and the ground wall surface to construct a concrete structure part using the formwork panel support structure as an aggregate. Characterized by comprising a and.

Further, in the construction method for a concrete structure according to the present invention, when constructing a retaining wall type concrete structure covering a ground wall, a plurality of support members are arranged at a predetermined interval from each other, A step of assembling a form panel supporting structure by connecting the supporting members to each other by a connecting member and connecting the auxiliary supporting members to the supporting members at intervals by connecting beams, and Installing the structural body such that the formwork panel attached thereto via the space holding member has an interval corresponding to the thickness of the concrete structure with respect to the ground wall surface; Attaching a form panel to the support member via a spacing member for allowing concrete to flow between the two; and placing concrete between the form panel and the ground wall, Le supporting structure characterized by comprising the steps of constructing a concrete structure moiety and aggregate, the.

In the present invention, concrete can be cast by attaching all the form panels to the assembled form panel supporting structure, but air is removed from the concrete by applying vibration or the like, or the concrete is spilled. There is a possibility that the tightening work for the buckling may become difficult. Therefore, after constructing the lowermost concrete structure part, the process of attaching the formwork panel to the support material above the lower part via the spacing member and pouring the concrete to construct the upper concrete structure part is repeated and determined. It is good to build at height.

In the above four examples, the support members, the connecting beams, the spacing members and the reinforcing bars are the same as those described above, and the description thereof will be omitted.

The strut used in the above construction method is also novel. That is, according to the present invention, when a concrete structure is constructed by assembling a formwork and casting concrete, a pillar serving as an aggregate extending in a longitudinal direction after the concrete is installed is attached to the formwork panel. A pillar material for a building, wherein the pillar body is manufactured using a metal material or a synthetic resin material, and a female screw portion is provided at a position where a form panel of the pillar body is to be attached. can do.

Usually, the form panels are often assembled side by side. Therefore, two female screw portions are provided adjacent to each other at the height at which the form panel is to be mounted on one pillar body so that the two form panels can be mounted continuously in the horizontal direction. Is good.

The material of the column material is not particularly limited, but in consideration of the strength of the concrete structure as an aggregate, a metal material such as an iron-based material or a synthetic resin material can be used. The shape of the strut material is not particularly limited, but in consideration of the strength of the concrete structure as an aggregate and the manufacturing process, the strut body has a substantially circular cross section, a substantially square cross section, and a substantially U-shaped cross section. A cross-section T-shaped or a cross-section L-shaped is formed in the longitudinal direction so as to be continuous in the longitudinal direction, and the mounting plate is extended in the horizontal direction at a position where the form panel of the support body is to be mounted, and the female screw is mounted on the mounting plate. It is preferable to adopt a shape in which the portion is provided.

Further, a formwork panel used in the construction method is also novel. That is, according to the present invention, it is a formwork panel for assembling a formwork attached to a support member when casting concrete to construct a concrete structure, and the back surface of the panel body has a peripheral edge of a frame. The panel body is reinforced, and the reinforcing member extends in the longitudinal direction and is fixed, and insertion holes for mounting bolts to the column material are formed in both side portions in the longitudinal direction of the panel body. Formwork panels can be provided.

The material of the form panel is not particularly limited. For example, the panel body can be manufactured using a metal material, a synthetic resin material or a wooden material. Also, the shape of the formwork panel is usually rectangular, but is not limited to this.
It can be appropriately selected according to the shape of the concrete structure.

In recent years, the durability of concrete structures and the deterioration of the surface layer have become serious problems due to acid rain and the quality of sand. However, in the method of the present invention, the female screw portion of the column material is used. The formwork panel is attached, and the strut becomes a part of the concrete structure.Remove the deteriorated surface layer of the concrete structure, expose the internal thread of the strut, use the internal thread to maintain the spacing If the formwork panel is reattached via the members and the concrete is poured, the repair or restoration of the concrete structure can be performed very easily and in a short time at low cost.

[0041]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to specific examples. 1 to 9 show a preferred embodiment of a concrete construction method according to the present invention, which is an example applied to the construction of a free-standing wall structure. In the method of this embodiment, the support member 10, the spacing member 20, the connecting beam 3
0 and the formwork panel 40 are mainly used.

As shown in FIGS. 1 and 2, the support members 10 are attached to the mounting plates 12 at predetermined intervals in the longitudinal direction of the support body 11 by welding or the like via the mounting stabilizers 13. The support body 11 is fixed and is made of a metal material such as an iron-based material, and has a U-shaped cross section that is continuous in the longitudinal direction. The mounting plate 12 is also made of a metal material and has a U-shaped cross section.
When the holes 4 and 14 are welded, the insertion holes 15 and 15 are formed corresponding to the screw holes of the nut 14.

The mounting stabilizing plate 13 is also made of a metal material, is fitted into the U-shaped portion of the mounting plate 12, and is inserted into the U-shaped portion of the mounting stabilizing plate 13.
The fitting plate 12 is stably fixed to the support column main body 11 by being fitted therein. In addition, although the mounting plate 12 and the mounting stabilizer 13 are U-shaped, the mounting stabilizer 13 is substantially C-shaped, the mounting plate 12 is substantially T-shaped, and the mounting plate 12 is vertically You may make it insert from a direction.

On both side walls of the mounting stabilizer 13 and the support body 11, mounting holes 16, 16 of the connecting beam 20 are formed to face each other, and a nut 17 is provided with a screw hole on one side wall surface. 16 and is fixed by welding or the like. In this example, the female screw portion is formed of a nut, but a female screw may be formed on the mounting plate 12.
Further, the nut 17 is used for mounting the connecting beam 20, but a female screw may be formed on the side wall surface of the mounting stabilizing plate 13 and the column body 11, or the mounting pin or bolt may be simply inserted.

As shown in FIG. 3, the spacing member 20 is formed by forming a coating layer 22 made of a synthetic resin material such as urethane on the surface of a body 21 made of a metal material having a truncated cone shape.
A bolt insertion hole 23 is formed in the center of the spacing member 20, and the height of the spacing member 20 is set to a size such that the support member 10 is completely embedded in the wall structure.

The spacing member 20 is detached after the construction of the concrete structure, but there is a possibility that the spacing member 20 is fixed to the concrete and cannot be easily removed. Therefore, FIG.
As shown in (b), a groove 24 is formed in the periphery of the bolt insertion hole 23 of the space holding member 20, and a projection of a tool is fitted into the groove 24 and the space holding member 20 is turned while the space holding member 20 is turned. Preferably, the member 20 can be removed.

As shown in FIG. 4, the connecting beam 30 has a disc-shaped connecting base 32 at both ends of a bar 31 such as a reinforcing bar having a predetermined diameter.
32 is fixed by welding or the like, and a bolt insertion hole 33 is formed in the connection base 32. The length of the bar member 31 is set in advance from a design drawing or the like such that the form panels 40, 40 facing each other have an interval corresponding to the thickness of the concrete structure. In addition, the connecting beam 30 includes the support members 10, 1, and 1.
0 may be connected to each other, for example, the connecting base 32 may have another shape, and when the mounting pins are inserted through the side walls of the mounting stabilizer 13 and the support body 11 as described above. Instead of the bolt insertion hole 33, a concave portion that fits into the mounting pin can be used.

As shown in FIGS. 5 (a) and 5 (b), the form panel 40 has a frame 42 fixed to the four peripheral edges of a metal panel (panel) 41 such as a square iron panel. The reinforcing member 4 is provided vertically and horizontally within the frame 42 of the metal panel 41.
3, 43, 44 fixed and longitudinally extending reinforcement 4
A mounting base 45... Is fixed to both ends of 3 and 43, and a bolt insertion hole 46 is formed in the mounting base 45.
Through. The wooden formwork panel 4
7, the reinforcing plates 48, 48, such as metal plates, are fixed to both sides and bolt insertion holes 4 as shown in FIG.
9 is preferably formed.

When building a self-supporting wall structure, first, as shown in FIG. 7 and FIG.
2 and 12, two formwork panels 40, 40 are adjacent to each other, and a spacing member 20 is provided between the mounting plate 12 and the formwork panel 40.
The bolt 50 is inserted into the insertion hole 46 of the mounting base 45 of the form panel 40, and the nut 1 of the mounting plate 12 is
6, the form panel 40 can be attached to the support member 10 with a predetermined gap therebetween. Similarly, the form panel 40 is attached to the necessary support members 10... And two form panel assemblies are assembled.

The bolt 5 is inserted through the form panel 40.
When the spacing member 20 is set to 0 and attached to the mounting plate 12, the spacing member 20 may fall off from the bolt 50 in operation. In such a case, as shown in FIG. 23, the stop ring 25 may be fitted into the bolt 50 through which the spacing member 20 is inserted to prevent the spacing member 20 from falling off.

When the form panel assembly is assembled in this way, the form panel assembly is erected to erect the support member 10, and the two form panel assemblies are spaced apart from each other by a distance corresponding to the thickness of the wall structure. Are connected to each other, and the connecting beams 30, 30 are provided in the U-shaped portions of the opposing support members 10.
Of the connecting stabilizer 32, the insertion holes 16, 16 of the mounting stabilizer 13 and the support body 11, and the insertion holes 33 of the connecting beam 30.
When bolts (not shown) are inserted into the nuts and screwed into the nuts 17 and tightened, the opposing support members 10, 10 are firmly connected, and the support members 10,. It is stretched and held.

Next, the connecting beams 30, 30 which are adjacent in the lateral direction
Are connected and fixed by welding, wire connection, or the like.
After building up and supporting the structure and fixing it by welding or wire connection to form a formwork panel supporting structure, the formwork panel 40
・ ・ Concrete is poured in between, and when the concrete solidifies, the lowermost wall structure can be constructed.

When the lowermost wall structure portion is formed, the pillar members 10... And the reinforcing bars 61 are firmly held, and thereafter, the form panel supporting structure above the lowermost wall structure portion is formed. Form panel 40 to support member 10 in the same manner as above
May be attached via the spacing member 20, and concrete may be cast to construct the next wall structure. Formwork panels 40, 40 that are adjacent in the horizontal and vertical directions may be connected to each other and reinforced by appropriate connection fittings.

With respect to the constructed wall structure, the form panel 40... And the spacing member 20 are removed, and can be used for the construction of the next wall structure. In addition, the support member 10 may be manufactured in advance to a required size from a design drawing or the like, or may be of a specified size and may be added using a connecting piece.

For the uppermost wall structure, the support member 1
When 0 ... protrudes from the wall structure portion, there is a concern about appearance and deterioration due to rainwater, etc., so that the height of the post members 10 is lower than the upper edge of the form panel 40. Set as follows.

Since the recess remains on the wall surface after the spacing member 20 has been removed, the recess may be filled with mortar.

Further, when constructing the upper wall structure, it is necessary for an operator to work at a high place. Therefore, a mounting portion is formed in the reinforcing member 43 extending in the longitudinal direction of the formwork panel 40, a triangular metal fitting is attached thereto, and a scaffold plate is wrapped around the metal fitting to form a working scaffold. Well, the lower wall structure already constructed has a recess from which the spacing member 20 has been removed, which communicates with the nut 14 of the mounting plate 12, so that the nuts 14, 14 arranged vertically
By using, a triangular metal fitting can be attached with bolts, and a scaffold plate can be wrapped around the metal fitting to provide a working scaffold.

In the present embodiment, the support member 10 is erected using the lowermost form panel 40. However, the support member 10, the connecting beam 30 and the connecting member 60 are assembled into a predetermined structure to form the support. A panel supporting structure may be constructed, and the form panel 40 may be attached to the structure, and the same operation and effect as described above can be obtained. Since the specific construction method can be easily understood from the method of the first embodiment, a detailed description thereof will be omitted.

FIGS. 12 and 13 schematically show a method of repairing a surface layer of a concrete structure constructed by the method according to the first embodiment. Before the repair, as shown in FIG. 12, the support member 10, the mounting plate 12, and the nuts 14, 1
4 is buried in concrete.

In the case of repair, as shown in FIG.
Remove the surface layer of the concrete structure with a razor or the like,
After exposing the mounting plate 12 and the nuts 14, 14, the formwork panel 40 is superimposed on the mounting plate 12 via the spacing member 20, and the bolt 50 is inserted and screwed into the nut 14. The panel 40 can be mounted. Then, the remaining concrete structure part and formwork panel 4
When concrete is poured into the space S formed between the concrete structures 0 and... And solidified, the surface layer of the concrete structure can be repaired and repaired.

FIG. 10 and FIG. 11 show a second embodiment. This example is an example applied to the construction of a retaining wall type concrete structure. When constructing a retaining wall type concrete structure, a form panel assembly is assembled in the same manner as in the first embodiment, and is inclined to a position corresponding to the thickness of the concrete structure with respect to the slope of the ground. Raise the jig 7
After the 0 is held on the slope, concrete may be cast to construct the lowermost concrete structure portion, and thereafter, the next stage concrete structure portion may be constructed similarly to the first embodiment.

When it is necessary to reinforce the support member 10 in the lateral direction, as shown in FIGS.
The connecting member 62 may extend in the lateral direction and be fixed by welding or the like.

Also in this embodiment, the column member 10 and the connecting member 62 may be assembled into a predetermined structure to construct a form panel supporting structure, and the form panel 40 may be attached thereto. Since the specific construction method can be easily understood from the method of the second embodiment, the detailed description is omitted.

FIG. 14 shows a third embodiment, which is an example applied to the construction of a large concrete structure such as a dam dam. In the drawings, the same reference numerals as those in FIGS. 1 to 9 indicate the same or corresponding parts. In this example, instead of directly connecting the opposing support members 10 and 10 with the connection beam 30,
One support member 10 and the auxiliary support member 100, and the other support member 1
0 and the auxiliary support members 100 are connected to each other by connecting beams 30, 30 to construct a formwork panel supporting structure.

When a large concrete structure is to be built, the building process can be appropriately divided in the vertical direction, the lower concrete structure can be built, and then the upper concrete structure can be built. In FIG. 14, after constructing the concrete structure portion below the dashed line a,
The upper concrete structure is built on top of it.

When a self-supporting formwork panel supporting structure is constructed by the support members 10 and the auxiliary support members 100, as shown in FIG. It is preferable that the lower end portion is embedded in the foundation concrete, and the lower end portions of the upper strut material 10 and the auxiliary strut material 100 are embedded in the lower concrete structure portion so as to be firmly self-supporting.

FIGS. 15 to 17 show a fourth embodiment, and the same reference numerals in FIGS. 1 to 9 denote the same or corresponding parts. In this example, the support members 10...
.., Connecting beams 30..., Connecting members 60... Are pre-assembled to produce a formwork panel supporting structure, which is installed at a construction site, and the lower ends of the support members 10. Is embedded in the foundation concrete, and then the form panel 40 is mounted on the mounting plates 12 via the spacing members 20.

When this construction method is adopted, all or most of the formwork panel supporting structure can be factory-produced in advance, and the assembling work at the construction site can be simplified. The form panel 40 may be attached to the support member 10 of the panel supporting structure via the spacing member 20, and the construction period can be significantly reduced.

In this example, as shown in FIG.
A column member 10 having an L-shaped cross section is used, and between the opposing column members 10, both ends of a connection beam 30 also having an L-shaped cross section are fixed by, for example, welding or the like, and in the middle of the connection beam 30. The receiving plate 63 is fixed by welding or the like, nuts 64, 64 are welded to the receiving plate 63, and a connecting member 60 having an L-shaped cross section is bridged between the receiving plates 64, 64 adjacent in the lateral direction. Both ends of the connecting member 60 are tightened and fixed to nuts 64 of the receiving plate 63 by bolts.

FIGS. 18 and 19 show the fifth embodiment. In the figures, the same reference numerals in FIGS. 1 to 9 denote the same or corresponding parts. In this example, the mounting plate 12 of the support member 10 is formed to have a length approximately half that of the first embodiment, and one nut 14 is fixed to the mounting plate 12 to form one form panel 40. Can be attached.

FIGS. 20 and 21 show the sixth embodiment, in which the same reference numerals in FIGS. 1 to 9 denote the same or corresponding parts. In this example, a planar triangular metal fitting 80 is jointly fastened to the bolt 50 for mounting the form panel 40, and the metal fitting 8
0, a nut 81 is fixed to the outermost formwork panel 40.
The side closing form panel 40 is set vertically,
Bolts 50 are inserted through the side sealing form panel 40 and connected to the nuts 81 so as to close the sides of the assembled form panel assembly.

[Brief description of the drawings]

FIG. 1 is a view showing a strut used in a preferred embodiment of a concrete construction method according to the present invention.

FIG. 2 is a plan view showing a main part of the support member.

FIG. 3 is a perspective view showing a spacing member used in the embodiment.

FIG. 4 is a view showing a connecting beam used in the embodiment.

FIG. 5 is a view showing a form panel used in the embodiment.

FIG. 6 is a view showing a modification of the formwork panel.

FIG. 7 is a schematic perspective view showing an assembled state of the form panel in the embodiment.

8 is a diagram showing a main part of FIG. 7;

FIG. 9 is a view showing a state where a mold is assembled in the embodiment.

FIG. 10 is a diagram showing a second embodiment.

FIG. 11 is a side view of FIG.

FIG. 12 is a diagram showing a state before repairing the concrete structure constructed in the first embodiment.

FIG. 13 is a diagram schematically showing a repair method.

FIG. 14 is a schematic configuration diagram illustrating a third embodiment.

FIG. 15 is a front configuration diagram showing a fourth embodiment.

FIG. 16 is a plan view showing the embodiment.

FIG. 17 is a front view (a) of a main part of the embodiment, and a plane of the main part.
It is a figure which shows (b) and the principal part side surface (c).

FIG. 18 is a plan view showing a fifth embodiment.

FIG. 19 is a diagram showing a main part front (a) and a main part plane (b) in the embodiment.

FIG. 20 is a front view showing the configuration of a sixth embodiment.

FIG. 21 is a plan view showing the embodiment.

FIGS. 22A and 22B are views showing modified examples (a) and (b) of the spacing member in the first embodiment.

FIG. 23 is a modified example of the first embodiment, and is a view showing a method of holding a spacing member to a bolt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Support member 12 Mounting plate 14 Nut (female screw part) 20 Spacing member 30 Connecting beam 40 Form panel 41 Metal panel (panel body) 42 Frame body 43, 44 Reinforcement material 45 Mounting base 46, 49 Insertion hole for bolt mounting 50 bolt 60 connecting member 61 rebar

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04G 11/08 E04G 11/08

Claims (18)

[Claims] In building a concrete structure, a structure for supporting a formwork panel to be an aggregate of the concrete structure is constructed by using at least a column member extending in a vertical direction, and the structure for supporting the formwork panel is provided. Attach the form surface of the form panel to the support member of the body via a spacing member for allowing concrete to flow between them, and cast concrete on the form panel supporting structure side of the form panel. A construction method for a concrete structure, wherein the concrete structure is constructed. 2. In building a self-supporting concrete structure, at least both end portions of a mold surface of a lowermost form panel are provided with support members via a spacing member for allowing concrete to flow between them. And the support members are erected, and the lowermost form panels are arranged opposite to each other at an interval corresponding to the thickness of the concrete structure, and the opposed support members are interconnected by connecting beams. And concrete casting between the pair of lowermost formwork panels, and a lowermost concrete structure portion using at least a formwork panel supporting structure composed of the support members and the connecting beams as an aggregate. And mounting a formwork panel to a support member above the lowermost concrete structure portion via a spacing member, and pouring concrete to form an upper concrete structure. And a step of constructing a structural part. 3. In building a self-supporting concrete structure, at least both side ends of a mold surface of a lowermost form panel are provided with support members via a spacing member for allowing concrete to flow between them. And connecting the auxiliary support members at an interval by a connecting beam on the opposite side to the form panel of the support member, and erecting the support members and the auxiliary support members, and the lowermost form panel Arranging the concrete so as to face each other at an interval corresponding to the thickness of the concrete structure; and placing concrete between the pair of lowermost form panels, at least using the strut material, the auxiliary strut material, and the connecting beam. A step of constructing the lowermost concrete structure portion using the formed form panel supporting structure as an aggregate, and maintaining a gap between the columns above the lowermost concrete structure portion Attach the formwork panels via the timber, construction methods of the concrete structure characterized by comprising the steps of constructing a concrete structure portions of the upper and Da設 concrete, the. 4. A construction for constructing a retaining wall type concrete structure that covers a ground wall surface, wherein at least both end portions of a mold surface of a lowermost form panel are provided with a strut material for allowing concrete to flow between them. A step of mounting via a spacing member, a step of erecting the column material and installing the form panel at an interval corresponding to the thickness of the concrete structure with respect to the ground wall, Placing concrete between the ground wall surface and constructing a lowermost concrete structure part using at least the above-mentioned strut material as an aggregate; and a spacing member for the strut material above the lowermost concrete structure part. Constructing an upper concrete structure portion by attaching a formwork panel through the surface and pouring concrete. . 5. A construction for constructing a retaining wall type concrete structure covering a ground wall surface, wherein at least both side ends of a mold surface of a lowermost form panel are provided with a support member for allowing concrete to flow between them. A step of attaching the supporting column member at an interval by a connecting beam to the opposite side of the supporting panel member from the form panel while attaching the supporting column member via a spacing member, and erecting the supporting column member and the auxiliary supporting member, A step of installing a space corresponding to the thickness of the concrete structure with respect to the ground wall, and placing concrete between the form panel and the ground wall, and at least the strut material was used as an aggregate. A step of constructing the lowermost concrete structure part; attaching a formwork panel to the support member above the lowermost concrete structure part via a spacing member; Construction methods of the concrete structure to the steps of constructing a concrete structure portion of the upper, comprising the by. 6. The concrete according to claim 1, wherein said laterally adjacent strut members are connected to each other by a connecting member so as to maintain a lateral interval between adjacent strut members. Construction method of structure. 7. When building a self-supporting concrete structure, a pair of support members are attached to the form members via a spacing member so that form panels have an interval corresponding to the thickness of the concrete structure. By opposing each other, the opposing strut members are interconnected by connecting beams, and a plurality of pairs of strut members are arranged at predetermined intervals in the lateral direction and interconnected by a connecting member, thereby forming a mold. Assembling a frame panel supporting structure; attaching a form panel to a column member of the form panel supporting structure via a spacing member for allowing concrete to flow between the two; Casting concrete between the formwork panels to be formed, and constructing a concrete structure portion using the formwork panel support structure as an aggregate. Construction method. 8. In building a self-supporting concrete structure, auxiliary pillars are connected to pillars at intervals by connecting beams, and said pillars, connecting beams and auxiliary pillars are mutually connected in a lateral direction. Forming panels which are arranged at predetermined intervals and are connected to each other by a connecting member, and the plurality of support members are attached to the supporting members via a spacing member at a distance corresponding to the thickness of the concrete structure. The step of assembling the formwork panel supporting structure by facing them together, and the step of assembling a supporting member for the formwork panel supporting structure with the spacing member for allowing the formwork panel to pass concrete between them. And a step of placing concrete between the opposed formwork panels to construct a concrete structure portion using the formwork panel support structure as an aggregate. Construction method of concrete structure characterized by the following. 9. When building a retaining wall type concrete structure covering a ground wall, a plurality of strut members are arranged at a predetermined interval from each other, and adjacent strut members are interconnected by a connecting member. Assembling the formwork panel supporting structure, and the formwork panel to which the formwork panel supporting structure is attached via a spacing member corresponding to the thickness of the concrete structure with respect to the ground wall. A step of installing the form panel so as to be at an interval to be performed, and a step of attaching a form panel to a support member of the form panel supporting structure via a spacing member for allowing concrete to flow between the two. Casting concrete between the frame panel and the ground wall, and constructing a concrete structure portion using the form panel supporting structure as an aggregate. Construction methods. 10. In building a retaining wall type concrete structure covering a ground wall, a plurality of strut members are arranged at a predetermined interval from each other, and adjacent strut members are interconnected by a connecting member. And a step of assembling a form panel supporting structure by connecting the auxiliary supporting members to the supporting members at intervals by connecting beams, and attaching the form panel supporting structure to the supporting members via a spacing member. Installing the form panel so as to have an interval corresponding to the thickness of the concrete structure with respect to the ground wall surface; and providing the form panel to the column material of the form panel supporting structure with concrete between the two. A concrete structure in which concrete is cast between the formwork panel and the ground wall, and the formwork panel support structure is used as an aggregate. Construction methods of concrete structures, comprising the a step of constructing a portion. 11. A step of constructing the upper concrete structure portion after constructing the lowermost concrete structure portion, attaching a form panel to the upper strut member via a spacing member, and pouring concrete. The method according to any one of claims 7 to 10, wherein the building is repeatedly constructed at a predetermined height. 12. A frame panel is overlapped on the support member via a spacing member, and a bolt is inserted into an insertion hole of the form panel and the spacing member, and a male screw portion of the bolt is provided on the support member. 12. The method for building a concrete structure according to claim 1, wherein the form panel is attached to a support member by screwing the form panel into a female screw portion. 13. The method of building a concrete structure according to claim 1, wherein a reinforcing bar is fixed to the connecting beam and / or the connecting member by welding or wire connection to arrange the reinforcing bar. 14. A pillar material which is used when assembling a formwork and casting concrete to construct a concrete structure, and is used to attach a formwork panel and become an aggregate extending in a vertical direction after the concrete is cast. A pillar material for a building, wherein the pillar body is made of a metal material or a synthetic resin material, and a female screw portion is provided at a position where the form panel of the pillar body is to be attached. 15. A single pillar body is provided with two female screw portions adjacent to each other at a height at which a form panel is to be mounted, and the two form panels are successively mounted in the horizontal direction. The architectural strut according to claim 14, which is adapted to be used. 16. The support body has a shape in which a substantially circular cross-section, a substantially quadrangular cross-section, a substantially U-shaped cross-section, a T-shaped cross-section, or an L-shaped cross-section are continuous in a longitudinal direction. 16. The supporting column material according to claim 14 or 15, wherein a mounting plate extends in the lateral direction and is fixed to a position where the form panel of the column main body is to be mounted, and the mounting plate is provided with a female screw portion. 17. A formwork panel for assembling a formwork which is attached to a pillar when casting concrete to construct a concrete structure, wherein the periphery of the panel body is reinforced by a frame. Wherein at least a reinforcing member extends in the longitudinal direction and is fixed in the longitudinal direction, and insertion holes for bolts for attaching to the support members are formed in both side portions of the panel body in the longitudinal direction. panel. 18. The formwork panel according to claim 17, wherein the panel body is manufactured using a metal material, a synthetic resin material, or a wooden material.