JPH11182040A - Concrete form for floor and ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate an erection work by constituting a concrete form with posts whose height can be adjusted, girders which is provided with insertion recesses and fixed to the posts, pipes inserted in the recesses, and synthetic resin boards mounted on the pipes. SOLUTION: Post 1 are vertically extended or contracted by rotating a handle 2 and girders 3 are laid on the upper end of the posts 1. Pipes 6 are inserted in recesses 4 of support boards 5 of the girders 3 and transparent or translucent synthetic resin boards 7 are laid on the upper face of the pipes 6. Then, after reinforcements or the like have been laid on the synthetic resin boards 7, concrete is placed on the boards 7 to form a floor face. In this way, since pipes 6 are supported in the recesses 4 on assembling the form and the intervals are not shifted, the interval can be shortened and hence, small diameter pipes can be used as the pipes 6. Accordingly, the weight of pipes 6 per unit area can be reduced and hence, transportation, assembling, and disassembling can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete mold for pouring concrete when a floor surface or a ceiling surface is formed of concrete in the field of concrete houses, condominiums, buildings, and other various types of civil engineering and construction. Related to frame structure.

[0002]

2. Description of the Related Art Conventionally, when concrete is cast on the floor or ceiling of a concrete building, a pillar is erected on the floor below the floor that constitutes the floor or ceiling, and on this pillar,
A formwork directly serving as a floor surface or a lower surface of a ceiling was placed, and concrete was poured onto the formwork.

[0003]

For this reason, it is difficult to make the upper surfaces of the arranged formwork flush with each other, and the lower surface of the concrete poured into the formwork is not uniform, and the uneven or stepped surface is finished. There were problems such as the necessity, time and effort required to delay the work, and increased construction costs.

In addition, since plywood is used as a conventional mold, the lower surface of the mold is darkened, making it difficult to work on the lower surface of the mold, and involves danger. However, there is also a problem that it is necessary to replace the formwork in a short period of time and the cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a post-finish finish by preventing irregularities due to irregularities on a surface after removing a formwork. An object of the present invention is to provide a concrete formwork structure for floors and ceilings that eliminates the need and has a bright bottom surface that allows easy work even after the formwork is laid.

[0006]

SUMMARY OF THE INVENTION A concrete formwork structure for floors and ceilings according to the present invention achieves the above-mentioned object. The means comprises a height-adjustable column which is erected at desired intervals. And a girder material having insertion recesses formed at desired intervals and fixed to the upper end of the column by a bridge, a pipe inserted into the insertion recess of the girder material, and a transparent or semi-transparent member mounted on the upper surface of the pipe. And a transparent synthetic resin plate.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a support standing upright on a floor surface, and the support 1 can be vertically expanded and contracted by turning a handle 2 provided in the middle thereof.

A girder 3 is placed on the upper end of the column 1. The girder 3 is composed of a plurality of columns 1 arranged in a row at a predetermined interval.
For example, they are supported side by side at intervals of 60 cm, and the height of the column 1 is made substantially constant by the rotation of the handle 2, and the beam 3
Of the support 1 and the gap between the support 1 and the girder 3 are prevented.

The beam member 3 has a substantially square cross section, and a support plate 5 having an arc-shaped insertion recess 4 with a constant radius, for example, a radius of 13 mm formed at a constant interval of, for example, 20 cm is attached to one side surface thereof. This girder 3 is spaced at regular intervals.
For example, they are placed on the columns 1 standing at 180 cm intervals and installed in parallel.

In each of the insertion recesses 4 of the support plate 5 of the girder 3, pipes 6 which are substantially the same diameter as the insertion recesses 4, that is, support members having a circular cross section having a diameter of 25 mm are inserted. It is supported at regular intervals in parallel with the beam 3.

As described above, on the upper surface of the pipes 6 arranged in parallel, a transparent or translucent synthetic resin plate 7 having a constant thickness, for example, a thickness of 4.5 mm is arranged without any gap. However, the insertion recesses 4 of the support plate 5 supporting the pipes 6 are not displaced in the vertical direction, and therefore, the pipes 6 arranged side by side do not have a height difference. The upper surface of the formed synthetic resin plate 7 is also flush, and there is no step between adjacent synthetic resin plates 7.

After a conventional floor surface forming means such as laying a reinforcing bar or the like on the synthetic resin plate 7 is taken, concrete is poured onto the synthetic resin plate 7 to form a floor surface. However, the weight of the poured concrete is distributed evenly to each pipe 6 because the interval between the pipes 6 is constant, and therefore, the weight of each pipe 6 based on the uneven distribution of weight to each pipe 6 There is no difference in bending.

In this way, after the concrete on the floor is finished and the concrete is hardened, the handle 2 of the column 1 is turned to lower the height of the girder 3 placed on the column 1, Synthetic resin plate 7 placed on pipe 6
A gap is provided between the mold and the concrete surface, and these molds are removed in the order of the synthetic resin plate 7, the pipe 6, the girder 3 and the support 1.

At the time of assembling such a mold, the pipe 6 is supported by the insertion recess 4 and its interval does not change, so that the interval can be made as narrow as 20 cm. For example, a thin pipe 6 such as one inch can be used.

As a result, the weight of the pipe 6 per unit area is reduced as compared with the conventional case, so that the columns 1 and the girder members 3 can be thinner and lighter than the conventional one, and the weight of the entire formwork can be reduced. Since it is reduced, storage in the warehouse, transportation from the warehouse to the site, and loading to a high place can be facilitated.

Further, when assembling and removing the formwork, the pipe 6, the girder 3 and the support 1 are light in weight, so that not only the work becomes easy, but also there is little danger of dropping or falling down. Become.

Further, since a transparent or translucent synthetic resin plate is used in place of the conventional plywood, the lower side is bright even after the laying, so that a light bulb for work is not required, and
Since it is a synthetic resin plate, it can be used repeatedly, so that the construction cost and the material cost can be reduced.

Next, another embodiment of the present invention will be described below with reference to FIG. In this embodiment, a case is shown in which the thickness of the floor surface is reduced as it reaches one side,
In this case, since the load per unit area applied to the pipe 6 decreases toward one side, the interval between the insertion recesses 4 of the support plate 5 for supporting the pipe 6 increases according to this load.

As a result, the interval between the pipes 6 arranged on the support plate 5 is increased, so that the load per unit area can be reduced. In this case, the interval between the columns 1 can be increased. .

FIG. 4 shows a synthetic resin plate 7 for forming a model of irregularities on the lower surface of the floor and ceiling. As shown in FIG. The embossed panel 8, the embossed panel 9, and the like having the opposite pattern formed thereon are laid with the uneven surface thereof as a concrete-casting surface.

Furthermore, when concrete is cast on a floor having a circular plane, the support plate 5 is bent into a circular shape without attaching the support plate 5 to the girder 3 such as wood as shown in FIG. The pipe 6 is inserted into and supported by the insertion recess 4. In this case, it is desirable that the interval between the insertion recesses 4 formed in the support plate 5 be sequentially changed so as to support the circular lower surface with an equal load. .

FIG. 6 shows an example in which the beam members 3 are not installed in parallel. In the case of a triangular or trapezoidal floor or ceiling, the distance from the end of the pipe 6 is constant. The support 1
It is supported by.

[0023]

As described above, according to the present invention, despite having a very simple structure, a support member such as a pipe for supporting a synthetic resin plate is provided at a fixed narrow interval or a load per unit area. It becomes possible to arrange according to, the weight of pipes etc. as support material is reduced,
Assembling and dismounting operations are facilitated, so that it is possible to shorten the construction period and enhance the safety of the operation.

Moreover, since there is no step on the surface of the synthetic resin plate laid on the support material, no step on the concrete surface after the mold is removed is produced.
This eliminates the need for finishing after flattening, and prevents the support member from slipping over the girder member by the insertion recess, and also prevents the girder member from shifting with respect to the support member.

Further, since a transparent or translucent synthetic resin plate is used in place of the plywood, the lower side does not become completely dark even after the synthetic resin plate as a weir plate is laid.
Since there is no need to use a light bulb for the work on the lower side, the construction cost can be reduced, and the repetitive use is possible, so that the material cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a framing method according to the present invention.

FIG. 2 is a perspective view of an embodiment of each mold element according to the present invention.

FIG. 3 is a sectional view of another embodiment of the present invention.

FIG. 4 is a cross-sectional view of an embodiment in which a concavo-convex pattern is formed on the lower surface of the floor.

FIG. 5 is a perspective view of an embodiment for forming a circular floor surface.

FIG. 6 is a perspective view of an embodiment for forming a triangular floor surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 3 Girder 4 Insert recess 5 Support plate 6 Synthetic resin plate

Claims (1)

[Claims] 1. A height-adjustable column that is erected at a desired interval, an insertion recess formed at a desired interval, and a bridge material fixed to an upper end of the pillar, and the insertion recess of the beam material. And a transparent or translucent synthetic resin plate mounted on the upper surface of the pipe.