JPH0684645B2 - How to build an insulating wall - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a method for constructing a heat insulating wall, and more specifically,
The present invention relates to a method for constructing a heat insulating wall in which concrete is cast on one end surface and concrete does not leak or get caught in a corner.

Technical background of the invention and its problems When constructing a wall in a building with reinforced concrete, etc., after constructing a temporary frame, the wall is constructed by placing concrete in the temporary frame in which the reinforcing bars are stretched. To construct.

In recent years, from the perspective of energy saving in indoor heating and cooling,
Also, from the viewpoint of preventing dew condensation on the interior wall, a heat insulating plate has come to be stretched on the wall of the building. In order to stretch a heat insulating plate on the wall of a building, there are an outer heat insulating structure in which a heat insulating plate is provided outside the room and an inner heat insulating structure in which a heat insulating plate is provided inside the room.

In any of the heat insulating structures, when the concrete wall is formed by pouring concrete, the conventional method is as follows.

As shown in FIGS. 5 and 6, first, the indoor side temporary frame 4 is assembled on the concrete floor 1 after casting along the indoor side wall surface, and the heat insulating plate 3 is stretched on the temporary frame 4, After the heat insulating plate 3 is temporarily fixed to the indoor side temporary frame 4 with nails or the like, the indoor side temporary frame 4 on which the heat insulating plate 3 is stretched is stood upright to be erected on the concrete floor 1. Next, the indoor temporary frame 2 is assembled and these temporary frames 2,
A gap 6 for placing concrete is formed between the four.

After that, concrete is driven into the gap 6 between the temporary frames 2 and 4 on which the reinforcing bars 5 (only shown in FIG. 5) and the like are stretched, and if the temporary frames 2 and 4 are removed after solidification of the concrete, the heat insulating plate 3 is placed inside the room.
A concrete wall with an internal heat insulation structure overlaid with is completed.
In the case of constructing a concrete wall having an external heat insulating structure, the same can be done by only reversing the indoor side and the outdoor side in the above description.

However, in the case of constructing a wall of the above-described heat insulating structure by placing concrete using the conventional heat insulating plate 3, especially in the corners 7 and 8 such as the entrance corner 7 or the exit corner 8 of the wall, There is a risk that concrete leaks, entrains, etc., and the concrete is exposed to the surface side of the heat insulating plate 3, which is not preferable in terms of appearance and also causes a heat insulating defect, which may cause dew condensation.

The reason why concrete leaks and entanglements are particularly likely to occur in the corners 7 and 8 is that the heat insulating plates 3 cross each other at substantially right angles in the corners 7 and 8, and therefore, due to dimensional errors of the heat insulating plate 3 and the like. It is conceivable that a gap is likely to occur. As shown by the dotted line in FIG. 5, the concrete entrainment means a state in which the heat insulating plate 3 is curved toward the gap 6 side due to concrete leakage or the like, and the concrete is entrained from there.

If the concrete leaks or entrainment as described above occurs, condensation will occur due to thermal insulation loss.
The work for repairing is further required, and the work is complicated, and the construction cost is inconvenient.

In order to eliminate such inconvenience, when assembling the temporary frame 4, an adhesive tape may be attached to the joints between the heat insulating plates 3 to prevent concrete from leaking from the joints between the heat insulating plates 3. It was sometimes done.

However, in this way, the work of sticking the adhesive tape in the field work is complicated, and it is difficult to stick the adhesive tape so as to completely close the gap of the joint portion, and this adhesive tape is eventually peeled off. However, there was still a risk that concrete would leak or get caught.

OBJECT OF THE INVENTION The present invention has been made in view of such circumstances, and when constructing a wall of a heat insulating structure by concrete pouring,
An object of the present invention is to provide a method for constructing a heat insulating wall that can effectively prevent concrete from leaking or being caught in a corner.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of heat insulating plates having at least a first heat insulating plate and a second heat insulating plate extending in two plane directions intersecting with each other according to the corner shape of a wall. And the heat insulating plates are arranged so as to be spaced apart from each other by a thickness greater than or equal to the thickness of the adjacent heat insulating plates to form a seam, and the seam is flexible from the one side flat surface of the heat insulating plate. An insulating panel formed by pasting tape is formed in advance, and one side surface of the insulating panel is held by a temporary frame at the corner of the wall, and then concrete is struck on the other side surface of the insulating panel. It is characterized by having been set up.

According to such a method for constructing a heat insulating wall according to the present invention, since a heat insulating panel that matches the shape of the corner of the wall is formed in advance, this heat insulating panel can be easily installed at the corner of the temporary frame at the site. Can be installed. After that, even if concrete is driven into the gap between the temporary frames, the gap between the first heat insulating plate and the second heat insulating plate is connected so as to be sealed beforehand, so that the concrete leaks or gets caught in the gap. Things will disappear.

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a cross-sectional view showing a method for constructing a heat insulating wall according to an embodiment of the present invention, FIGS. 2 and 3 are overall perspective views of a heat insulating panel used in the method, and FIGS. FIG. 5 is a sectional view showing a usage state of a heat insulating panel according to another embodiment of the present invention, and FIG. 5 is an overall perspective view of a heat insulating panel according to still another embodiment of the present invention.

As shown in FIG. 2, in the heat insulation panel 10 used in the method for constructing the heat insulation wall according to the embodiment of the present invention, the side end portions 11a of at least two first and second heat insulation plates 11 and 11 are provided. , 11a are separated by a predetermined distance t to form a joint portion 12, and the joint portion 12 is formed.
A flexible tape 13 is attached to 12 from one flat side, and the heat insulating plates 11 and 11 are joined to each other. The tape 13 is for connecting the heat insulating plates 11 and 11 to each other so as to seal the gap between the joints.

As the material of the heat insulating plate 11, foamed plastics such as foamed polystyrene is used. The two heat insulating plates 11 have a predetermined wall thickness, and do not necessarily have the same wall thickness. However, the predetermined interval t is equal to one of the heat insulation plates.
It must be 11,11 or more thick. Otherwise, as will be described later, the heat insulating plates 11 and 11 cannot be bent at a predetermined angle with the joint portion 12 as a line of intersection.

As the tape 13, a cloth adhesive tape, a film adhesive tape, or the like is used. When a film-shaped adhesive tape is used as the tape 13, the surface of the tape 13 is preferably roughened. This is because in that case, when concrete is placed in a later step, the adhesive force of the concrete to the tape 13 increases. The tape 13 does not necessarily have to be an adhesive tape,
It may be a mere film or a net-like body adhered by an adhesive or heat bonding.

According to such a heat insulating panel 10, since the heat insulating plates 11 and 11 joined by the tape 13 can be opened and handled as one plate during transportation and handling, the transportation and handling are easy.

In this way, when constructing a heat insulating wall using the heat insulating plate 10 in which the first heat insulating plate and the second heat insulating plate are connected in advance, first, as shown in FIG. As a line, the heat insulating plates 11 are crossed with each other at a predetermined angle, and as shown in FIG.
One side surface of the heat insulating panel 10 is held by the temporary frame 4. Further, the heat insulating plate 3 is stretched in addition to the corners, and these are held by the temporary frame 4. After that, concrete is driven into the gap 6 between the temporary frames 2 and 4, and after the concrete is solidified, the temporary frames 2 and 4 are
By removing the, the inner insulation wall is completed. The same applies to the case of constructing the wall of the heat insulating structure.

According to the method for constructing the heat insulating wall according to the present embodiment,
Even if concrete is driven into the space 6 between the temporary frames 2 and 4, the tape 13 is pre-attached to the joint between the heat insulating plates 11 and 11 corresponding to the corner 7 of the wall. No longer leaks or gets caught.

The present invention is not limited to the above-mentioned embodiments, but can be modified in various ways within the scope of the present invention.

For example, as shown in FIG.
Not only the heat insulating panel 10 according to the embodiment of the present invention can be used for the projecting corner portion 8. If necessary,
The length of any of the heat insulating plates 11 in the heat insulating panel 10 can be adjusted on site.

In addition, as shown in FIG. 3B, three heat insulating plates 11, 11, 11
The present invention is also a method of constructing by using the heat insulating panel 10a that can be installed at the entry corner 7 and the exit corner 8 at the same time by adhering each seam portion 12 in FIG. Is the range.

Further, as shown in FIG. 3C, the three heat insulating plates 11, 11,
A method of constructing each seam portion 12 in 11 by using a heat insulating panel 10b that can be easily installed at a corner portion of a wall projecting on a rectangular cross section by sticking and joining the same one side long surface side with a tape 13. Is also within the scope of the invention.

Furthermore, several heat insulating plates 11 are taped as described above.
It is also within the scope of the present invention to use a method of constructing using a heat-insulating panel adhered and joined in 13.

In the heat insulating panels 10, 10a, 10b used in the above-described embodiments, the first and second heat insulating plates 11, 11 are hermetically connected by the tape 13, but the present invention is not limited to this. It is also possible to previously bond the first and second heat insulating plates 11 and 11 to each other with an adhesive.

EFFECTS OF THE INVENTION As described above, according to the present invention, a plurality of heat insulations having at least a first heat insulation plate and a second heat insulation plate extending in two plane directions intersecting with each other according to the corner shape of the wall. The heat insulating plate is formed of a plate, and the heat insulating plate is arranged so as to be spaced apart from each other by a thickness greater than or equal to that of an adjacent heat insulating plate so as to form a seam portion. A heat-insulating panel formed by adhering a certain tape is formed in advance, and one side surface of the heat-insulating panel is held by a temporary frame at a corner of a wall, and then concrete is applied to the other side surface of the heat-insulating panel. Since it was cast, it is possible to effectively prevent concrete leakage and entrainment when constructing a heat insulating wall having corners, and therefore it is possible to effectively prevent dew condensation at the corners of the wall and to prevent concrete leakage. It has an excellent effect such as reduction of work process or cost required for repair work due to entanglement or involvement.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a method for constructing a heat insulating wall according to an embodiment of the present invention, FIGS. 2 and 3 are overall perspective views of a heat insulating panel used in the method, and FIGS. Sectional drawing which shows the use condition of the heat insulation panel which concerns on the other Example of this invention, FIG. 5, 6 is sectional drawing and perspective view which show the construction method of the heat insulation wall which concerns on a prior art example, respectively. 2,4 ... Temporary frame, 11a ... Side end, 3,11 ... Insulation plate, 12 ... Seam, 7,8 ... Corner, 13 ... Tape, 10,10a, 10b ... Insulation panel,

Claims (4)

[Claims] 1. Crossing with each other according to the shape of a corner of a wall.
It is formed of a plurality of heat insulating plates having at least a first heat insulating plate and a second heat insulating plate extending in the plane direction, and the heat insulating plates are spaced apart from each other by a thickness of adjacent heat insulating plates or more to form a seam portion. The heat insulation panel is formed by pasting a flexible tape from the flat side of the heat insulation plate on one side, and the one side surface of the heat insulation panel is formed on the corner of the wall. A method for constructing a heat insulating wall, characterized in that concrete is placed on one surface of the other side of the heat insulating panel after holding the same with a temporary frame. 2. The method for constructing a heat insulating wall according to claim 1, wherein the tape has a mesh shape. 3. The method for constructing a heat insulating wall according to claim 1, wherein the surface of the tape is roughened. 4. The method for constructing a heat insulating wall according to claim 1, wherein the heat insulating panel is formed by integrally molding at least a first heat insulating plate and a second heat insulating plate in advance.