JP2004036333A - Construction method for external wall structure of concrete building and form panel for construction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method for an external wall structure of a concrete building enabling construction of a concrete wall face by a placing form of internal and external walls by providing a ventilation layer between a heat insulator and concrete, and to provide the form for construction. <P>SOLUTION: The form 1 for the construction is composed of a form panel 2 for indoor side construction, a form panel 2 for outdoor side construction, and a separator 3 holding the form panels 2 for the construction. Furthermore, the form 1 for the construction is constituted to provide a reticulate part 5 by providing a gap for the inside face of the form panel for the outdoor side construction. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for constructing a concrete building outer wall structure and a formwork for construction. More specifically, the present invention relates to a method of constructing a concrete building outer wall structure having air permeability and a formwork for construction.
[0002]
[Prior art]
As shown in FIG. 11, concrete 102 is driven into a wooden or metallic formwork 101 on a concrete building outer wall serving as a skeleton of an apartment, office, house, or the like.
[0003]
Then, as shown in FIG. 12, after curing, the formwork 101 is removed and the concrete building outer wall 103 is constructed. Since moisture remains in the concrete building outer wall 103, the concrete building is exposed to outside air to remove moisture. After evaporating, a heat insulating material 104 is provided on the inside and outside walls of the room, and an inner and outer material 105 is attached on the surface thereof.
[0004]
In this method of constructing a concrete building outer wall, there is a problem that removal of the formwork is extremely troublesome, and furthermore, dew condensation and mold are easily generated between the concrete wall surface and the heat insulating material on the indoor side. There are problems such as peeling or stains.
[0005]
Therefore, recently, as a thermal insulation method that is less likely to cause dew condensation and mold, a concrete casting method that integrates styrofoam and an auxiliary formwork and forms a block with heat insulation, or uses a foam material for thermal insulation as a formwork material A method of simultaneous driving and a method of combining heat insulating materials to form a concrete form have become widespread.
[0006]
[Problems to be solved by the invention]
However, in the construction method of concrete building outer wall by simultaneous casting with formwork and heat insulating material, most of the inner and outer walls are assembled by using the conventional formwork, concrete is poured, cured, and then the formwork is formed. At present, after removing the water and evaporating the water in the outer wall of the concrete building, a heat insulating material is provided, and the interior and exterior materials are pasted on the surface thereof to construct the building.
Therefore, it takes time to install the heat insulating material and the interior and exterior materials on any one of the inner and outer walls, and furthermore, it takes time to evaporate the moisture in the outer wall of the concrete building. Problems similar to the assembling method may occur.
[0007]
In addition, when a concrete building outer wall is constructed by simultaneously driving the outer wall with a formwork and a heat insulating material, the water in the concrete does not evaporate, and it becomes difficult to obtain sufficient concrete strength. There is a problem that moisture in the concrete easily causes condensation and mold between the concrete wall surface and the heat insulating material.
[0008]
The present invention has been made in view of the above points, and provides a ventilation layer between a heat insulating material and concrete, thereby enabling a concrete wall to be constructed by a driving formwork of an inner or outer wall. It is an object of the present invention to provide a method of constructing a building outer wall structure and a formwork for construction.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a method of constructing a concrete building outer wall structure according to the present invention comprises assembling a construction form at intervals, placing concrete in the construction form, and constructing the form. In a method for constructing a concrete building outer wall structure that integrates a frame and concrete, a step of providing a mesh-like plate portion by opening a gap with respect to an inner surface of a construction form panel on at least one side of the construction form, Forming a ventilation portion between the inner surface of the building form panel and the concrete by casting concrete into the building form.
[0010]
Here, by providing a mesh portion by opening a gap with respect to the inner surface of the building form panel, in a state where the concrete bites into the mesh portion when concrete is poured into the building form. As a result, a ventilation portion is formed between the solidification and the construction form panel.
[0011]
Therefore, the moisture in the concrete is evaporated through the ventilation part, and furthermore, a void is formed between the concrete form panel and the building, so that a heat insulating effect can be obtained.
[0012]
In order to achieve the above object, a building formwork panel according to the present invention is a concrete building in which concrete is cast into a building formwork that is assembled at intervals and integrated with the building formwork. In the construction formwork of the outer wall structure, a construction formwork panel main body formed of a heat insulating material, and a mesh portion formed by providing a gap with respect to one side of the construction formwork panel main body are provided. .
[0013]
Here, by providing a gap on one side surface of the building form panel body formed by the heat insulating material to form a mesh portion, the concrete bites into the mesh portion when the concrete is poured. This solidifies in a state, so that a ventilation portion is formed between the building form panel and the building form panel, and the mesh portion enables the connection between the building form panel body and the concrete.
[0014]
Further, in order to achieve the above object, a construction form panel according to the present invention casts concrete into a construction form assembled at intervals and integrates the construction form with concrete. In a construction formwork of a concrete building outer wall structure, a gap is formed between a construction formwork panel body formed of a two-layer structure of a heat insulating material and an exterior plate, and a heat insulating material surface of the construction form panel body. And a mesh portion formed by being provided.
[0015]
Here, when concrete is cast by forming a mesh portion by providing a gap with respect to the heat insulating material surface of the construction form panel panel body formed from the two-layer structure of the heat insulating material and the exterior plate The concrete solidifies as it bites into the mesh, resulting in the formation of a vent between the formwork panel and the connection between the building formwork panel body and concrete. It becomes.
[0016]
Furthermore, the work process of attaching the exterior material to the outer wall surface of the concrete building exterior wall structure is eliminated by the exterior material integrally laminated with the heat insulating material, and the occurrence of dew condensation between the heat insulating material and the exterior material is prevented beforehand. You can do it.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings for understanding the present invention.
1 to 3 are cross-sectional explanatory views for explaining an example of a method for constructing a concrete building outer wall structure to which the present invention is applied.
[0018]
The construction formwork 1 shown here is composed of an indoor construction formwork panel 2, an outdoor construction formwork panel 2, and a separator 3 that holds these construction formwork panels 2 at a constant interval. It is configured.
[0019]
Here, the construction form panel 2 is formed of a heat insulating material 4 made of a foamed synthetic resin material having a light weight and a high pressure resistance, such as styrene foam.
[0020]
Then, a gap is formed in the inner side surface of the construction form panel 2 on the outdoor side to provide a mesh portion 5, and the mesh portion 5 is arranged at regular intervals with respect to the inner side surface. The spacers 6 are stacked in a state where the gap A is provided. The mesh portion 5 has a hole diameter that is large enough to prevent the inflow of the concrete poured into the construction form 1 when the concrete is cut.
[0021]
Then, after assembling the rebar in the building form 1, the concrete 7 is cast and the concrete 7 is removed from the mesh portion 5 provided on the inner side surface of the building form panel 2 on the outdoor side. It is solidified in a biting state, and the ventilation portion 8 is formed between the inner surface of the forming form panel 2 and the mesh portion 5.
[0022]
The moisture in the concrete 7 is evaporated from the mesh portion 5 to the outside air through the ventilation portion 8 by the ventilation portion 8, and the solidification of the concrete 7 is promoted.
[0023]
Next, the exterior panel 10 is attached to the indoor side wall surface and the outdoor side wall surface of the concrete building outer wall structure 9 in a state where the building form panel 2 and the concrete 7 are integrated.
[0024]
Here, the construction form panel in which the mesh portion is provided does not necessarily need to be disposed on the outdoor side, and may be disposed on the indoor side or on both sides, but in consideration of air permeability and strength, It is desirable to arrange only on the outdoor side.
[0025]
Further, the heat insulating material does not necessarily need to be formed of a foamed synthetic resin material such as styrene foam, and may be any material such as a gypsum board or a synthetic resin plate having heat insulating properties. It is preferable to be formed of a foamed synthetic resin material such as styrene foam having excellent pressure resistance.
[0026]
Furthermore, in the case where the exterior material is provided for the construction form panel on the outdoor side, it is not always necessary to directly attach the body material, and as shown in FIG. It can also be mounted with a gap provided through it.
[0027]
5 and 6 are cross-sectional explanatory views for explaining another example of the method for constructing a concrete building outer wall structure to which the present invention is applied.
[0028]
The construction form panel 2 shown here is formed by a two-layer structure of a heat insulating material 4 made of a lightweight and high pressure-resistant strength synthetic resin material such as styrene foam and an exterior plate 10 made of an asbestos board. A gap is formed in the inner surface of the construction form panel 2 on the outdoor side, that is, the heat insulating material 4 is provided with a mesh portion 5, and the mesh portion 5 is provided with respect to the inner surface. The spacers 6 are stacked with the space A provided by the spacers 6 arranged at regular intervals. The mesh portion 5 has a hole diameter that is large enough to prevent the inflow of the concrete poured into the construction form 1 when the concrete is cut.
[0029]
Then, after assembling the rebar in the building form 1, the concrete 7 is cast and the concrete 7 is removed from the mesh portion 5 provided on the inner side surface of the building form panel 2 on the outdoor side. It is solidified in a biting state, and the ventilation portion 8 is formed between the inner surface of the forming form panel 2 and the mesh portion 5.
[0030]
Here, by adopting a configuration in which the exterior plate and a heat insulating material made of a foamed synthetic resin material such as styrene foam are integrally laminated, an effect as reinforcement of the foamed synthetic resin material having a disadvantage in bending stress can be obtained. As a result, it is possible to make the thickness of the construction form panel thinner than only the heat insulating material made of the foamed synthetic resin material.
[0031]
Furthermore, after assembling the reinforcing steel into the construction formwork 1, the concrete 7 is poured into the construction formwork 1 so that the mesh 7 provided on the inner side surface of the construction formwork panel 2 on the outdoor side becomes concrete 7. Is solidified in a bite state, and a ventilation portion 8 is formed between the inner surface of the construction form panel 2 and the mesh portion 5.
[0032]
Therefore, the moisture in the concrete 7 is evaporated from the mesh portion 5 to the outside air through the ventilation portion 8 by the ventilation portion 8, and the solidification of the concrete 7 is promoted.
Then, the concrete building outer wall structure 9 in which the exterior plate, the heat insulating material, and the concrete are integrated is constructed.
[0033]
Next, FIGS. 7 and 8 are a side view and a plan view showing an example of a construction form panel to which the present invention is applied.
The construction form panel 2 shown here has a configuration in which a mesh portion 5 is provided by opening a gap with respect to the surface of a heat insulating material 4 made of a lightweight and high pressure-resistant synthetic foam material such as styrene foam. is there.
[0034]
Here, the mesh portion 5 is formed of a synthetic resin material such as vinyl chloride or plastic, and has a number of holes 12 penetrating therethrough.
Then, spacers 6 are integrally protruded from the surface of the mesh portion 5 at regular intervals.
[0035]
Therefore, by attaching the mesh portion 5 to the heat insulating material 4 surface, a gap A is formed between the mesh portion 5 and the heat insulating material 4 surface.
[0036]
Next, FIG. 9 is a side view and a plan view showing another example of the construction form panel to which the present invention is applied.
The construction form panel 2 shown here has an exterior panel 10 attached to the outer surface of four heat insulating materials made of a lightweight and high pressure-resistant foam synthetic resin material such as Styrofoam, and four heat insulating materials. And a mesh-shaped portion 5 is provided by opening a gap with respect to the inner side surface.
[0037]
Here, it is desirable to use a hard and heat-insulating material such as an asbestos board or a scallop board as the exterior board.
Further, the mesh portion 5 is formed of a synthetic resin material such as vinyl chloride or plastic, as described in detail in the example of the construction form panel to which the present invention is applied, and further has countless holes 12 therethrough. Spacers 6 are integrally protruded from the mesh portion 5 at regular intervals.
[0038]
Therefore, by attaching the mesh portion 5 to the heat insulating material 4 surface, a gap A is formed between the mesh portion 5 and the heat insulating material 4 surface.
[0039]
Here, the mesh portion according to the present invention does not necessarily need to be formed of a synthetic resin material such as vinyl chloride or plastic, and may be any material that can withstand the pressure of concrete and is not easily corroded by rust or the like. .
[0040]
Further, it is not always necessary to provide a spacer as a means for providing a space between the heat insulating material and the heat insulating material. For example, as shown in FIG. Is attached, the space A can be formed between the heat insulating material 4 and the mesh portion 5.
[0041]
【The invention's effect】
As described above, according to the present invention, by forming a ventilation portion between the formwork panel for construction and the concrete, the moisture in the concrete is released to the outside air through the ventilation portion, so that the moisture in the concrete is reduced. Can be removed.
[0042]
In addition, since the concrete to be digged into the mesh portion can be integrated with the building form panel, the work efficiency can be further improved by combination with the exterior panel.
[Brief description of the drawings]
FIG. 1 is a sectional explanatory view for explaining an assembled state of a building form panel in an example of a method for building a concrete building outer wall structure to which the present invention is applied.
FIG. 2 is an explanatory cross-sectional view showing a state in which concrete is poured into the building form panel in FIG. 1;
FIG. 3 is an explanatory cross-sectional view showing a state in which concrete is poured into a building form panel in FIG. 2 and an exterior plate is attached.
FIG. 4 is an explanatory view showing another example of mounting the exterior plate.
FIG. 5 is a sectional explanatory view for explaining an assembling state of a building form panel in another example of a method for building a concrete building outer wall structure to which the present invention is applied.
FIG. 6 is an explanatory cross-sectional view showing a state in which concrete is poured into the building form panel in FIG. 5 and then an exterior plate is attached.
FIG. 7 is a side view showing an example of a construction form panel to which the present invention is applied.
FIG. 8 is a plan view showing an example of a construction form panel to which the present invention is applied.
FIG. 9 is a side view showing another example of the construction form panel to which the present invention is applied.
FIG. 10 is an explanatory view showing another method for forming a gap between the heat insulating material and the mesh portion according to the present invention.
FIG. 11 is an explanatory view showing an example of a conventional method for constructing a concrete building outer wall structure.
FIG. 12 is an explanatory view showing a finished state of the concrete building outer wall structure in FIG. 11;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Construction formwork 2 Construction formwork panel 3 Separator 4 Insulation material 5 Mesh-like part 6 Spacer 7 Concrete 8 Ventilation part 9 Concrete structure 10 Exterior board 11 Body edge

Claims (8)

Assembling the construction formwork at intervals, casting concrete in the construction formwork, and a method of constructing a concrete building outer wall structure integrating the construction formwork and concrete,
A step of providing a mesh portion by opening a gap with respect to the inner surface of the construction form panel on at least one side of the construction form,
Forming a ventilation section between the inner surface of the building form panel and the concrete by casting concrete into the building form, the method for building a concrete building outer wall structure. 2. The method for constructing a concrete building outer wall structure according to claim 1, wherein the construction form panel is formed of a heat insulating material. 3. The method for constructing a concrete building outer wall structure according to claim 2, wherein the heat insulating material is formed of a foamed synthetic resin material. 2. The method according to claim 1, wherein the construction form panel has a two-layer structure of a foam synthetic resin material and an exterior plate. In the construction formwork of a concrete building outer wall structure in which concrete is poured into the construction formwork that is assembled at intervals and the construction formwork and the concrete are integrated,
A formwork panel body for construction formed by heat insulating material;
A mesh portion formed by providing a gap with respect to one side surface of the construction form panel body;
A formwork panel for construction, comprising: The construction form panel according to claim 5, wherein the heat insulating material is formed of a foamed synthetic resin material. In the construction formwork of a concrete building outer wall structure in which concrete is poured into the construction formwork that is assembled at intervals and the construction formwork and the concrete are integrated,
A formwork panel body for construction formed from a two-layer structure of a heat insulating material and an exterior plate,
A mesh portion formed by providing a gap with respect to the heat insulating material surface of the construction form panel body;
A formwork panel for construction, characterized in that: The construction form panel according to claim 7, wherein the heat insulating material is formed of a foamed synthetic resin material.

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