JPH04203142A - Work for outer heat insulating wall of structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of constructing an external heat insulating wall of a concrete structure such as a building.

(Prior Art) Conventionally, construction methods for making a reinforced concrete outer wall of a concrete structure into a heat insulating wall include a dry method and a wet method.

Among these methods, an example of the dry method 1 is shown in Figs. 20 and 21. A heat insulating material 2 such as expanded polystyrene is glued to the outside of a concrete outer wall l of a building, and the heat insulating material 2 is attached from the outer wall l. The anchor bolt 3 is installed so as to protrude through the
A metal spacer 4 is provided on the outside of the heat insulating material 2 using the anchor bolt 3.

A metal rim 5 is attached via the spacer 4, and a metal exterior plate 6 is fixed to the rim 5 with screws 7.

An example of the wet type 1 method is shown in FIG. 22. A heat insulating material 2 such as expanded polystyrene is bonded to the outside of a concrete outer wall 1 with an adhesive 8, and the outside is covered with mortar IO with a reinforcing material 9 such as metal lath. Then, an exterior material 11 such as tiles is sprayed on the outside.

[The problem that the invention tries to solve! ! ] However, in both the dry method 1 method and the wet method 1 method, after constructing the outer wall of the building made of concrete, insulating material is pasted with adhesive, and after installing the rim or mortar containing reinforcing material, the exterior is removed. It takes a lot of time to apply, and the construction period is quite long.

Moreover, since it requires adhesive, it is troublesome to handle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for constructing an external heat insulating wall for a structure, which eliminates the disadvantages of the conventional example and allows construction to be performed easily and in a short period of time.

[Means for Solving the Problems] In order to achieve the above object, the present invention, when constructing a concrete outer wall of a concrete structure, includes a heat insulating material inside the outdoor concrete formwork of the outer wall, and a concrete Place the rim with an anchor part on the pouring side by temporarily fixing the rim to the concrete formwork with nails or screws, arrange reinforcement, set the indoor concrete formwork, and then pour concrete. The main idea is to remove the formwork after the concrete has hardened, and then fix the exterior material to the concrete using nails or screws.

(Function) According to the present invention as set forth in claim 1, the heat insulating material and the rim can be set in advance as part of the concrete pouring work.

In addition, the exterior material can be attached using the rim immediately after demolding the formwork.

According to the present invention as set forth in claim 2, in addition to the above-mentioned effect, the rim will not be burned down even in the event of a fire, so it is possible to prevent the exterior material from falling off.

〔Example] Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a longitudinal sectional side view showing one embodiment of the method of constructing an external heat insulating wall of a structure according to the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1.

In the figure, 12 is an outdoor concrete form used for constructing the concrete outer wall of a concrete structure, and heat insulating materials 13 and rims 14 are arranged alternately on the inside thereof.

As the heat insulating material 13, a heat insulating material made of resin foam or a heat insulating material made of inorganic fiber is used.

The furring 14 is thicker than the heat insulating material 13 and is made of a material that can be nailed or screwed.

The rim 14 may be made of a wood-based or synthetic resin-based material, but it is preferable to use an inorganic non-combustible material such as a ceramic-based, cement-based, calcium silicate-based material in case of fire.

In addition, the rim 14 is temporarily fixed inside the formwork 12 by nailing it from the outside of the outdoor concrete formwork 12 or fixing it with screws, but the direction is vertical or horizontal. Either can be installed in accordance with the way the exterior material 25 is applied, which will be described later.

Furthermore, the temporarily fixed furring 14 protruded beyond the heat insulating material I3 on the concrete placement side, and the anchor portion 15 was formed by bulging this protrusion.

7 to 10 show examples of the shapes of this anchor portion 15, including one that expands into a fan-like cross section as shown in FIG. 7, one that expands into an elliptical shape as shown in FIG. Figure, 1st
As shown in the θ diagram, there is a narrow diameter portion formed by a groove, and the diameter widens from this narrow diameter portion.

Furthermore, as another embodiment, as shown in FIGS. 11 to 13, metal fittings may be provided on the concrete casting side of the rim 14 and used as anchor parts 16 to 18.

In the example shown in FIG. 11, an L-shaped screw whose tip is bent at a right angle is screwed to the body a14 to form the anchor portion 16.

In the example shown in FIG. 12, a substantially V-shaped bent plate 19 as shown in FIG. 18 is nailed to the trunk rim 14 to form an anchor part F.

In the example shown in FIG. 13, the anchor portion 18 is formed by screwing a normal screw to the rim 14.

In addition, in the case of these FIGS. 11 to 13, the rim 14 is thicker than the heat insulating material 13, and the concrete pouring side protrudes beyond the heat insulating material 13, but as described above, the anchor parts 16 to 18 are If it is installed on the rim 14 with metal fittings, the 14th
As shown in FIGS. 1 to 16, the furring 14 may have the same thickness as the heat insulating material 13.

FIG. 19 shows the other side when the anchor part 20 is further formed with metal fittings, and as shown in FIG.
The legs 21a of this H-shaped fitting 21 are bent and formed into a shape.
The space between them is the same as the width of the furring 14.

The leg portion 21a is provided with a cut-and-raised pin 21b facing inward in the orthogonal direction.

To attach the metal fittings 21 to the body rim 14, spread the legs 21a and sandwich the body rim 14 between the legs 21a, and then insert the pin 21.
b into the side of the furring 14.

By doing so, the H-shaped head protrudes from the body rim 14 and becomes the anchor portion 20.

The heat insulating material 13 is temporarily fixed in the same way by temporarily fixing the circumferential edge 14 inside the outdoor concrete formwork 12, so that it is supported by the circumferential edge 14.

Next, as shown in No. 111J, reinforcing bars 22 are arranged, the indoor concrete formwork 23 is set, and then concrete 24 is poured.

After the concrete 24 has hardened, if the outdoor concrete formwork 2 and the indoor concrete formwork 23 are removed from the molds, it will be found that part of the rim 14 is buried in the concrete 24 and that the heat insulating material 13 is buried in the concrete 24. By adhering to the surface of the concrete 24, it remains bonded to the surface of the concrete 24.

Immediately after removing the formwork, the exterior material 25 is fixed to the rim 14 with nails 26 or screws, as shown in FIGS. 3 to 6.

3 and 4 show an example in which the exterior members 25 are stacked on top of each other and installed in a so-called clapboard style.

Further, in FIGS. 5 and 6, the exterior materials 25 are joined together in a continuous manner, and in this embodiment, the furring rim I4 is arranged in the horizontal direction in accordance with the way the exterior materials 25 are stretched.

〔Effect of the invention〕

As described above, the construction method of the external insulation wall of the structure of the present invention is to temporarily fix the insulation material and the rim to the formwork, and then simply pour concrete and the insulation material and the rim are glued together. It can be fixed to the outer wall of a concrete structure without using any additives, and once the concrete is removed from the mold, an exterior covering material can be immediately applied as a finishing material, making it possible to perform construction easily and in a short period of time.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view showing one embodiment of the method of constructing an external insulation wall of a structure according to the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1,
Figure 3 is a vertical side view with exterior materials attached, Figure 4 is a sectional view taken along line B-B in Figure 3, Figure 5 is a vertical side view with other exterior materials attached, and Figure 6 are sectional views taken along the line C-C in FIG. 5, and FIGS. 7 to 11! Figure 18 is a perspective view showing an example of the metal fittings for forming the anchor part, Figure 19 is a perspective view showing the other side of the same as above, and Figure 20 is a sectional view showing each side of the trunk rim. FIG. 21 is a cross-sectional side view showing a conventional example, FIG. 21 is a cross-sectional plan view of the same as above, and FIG. 22 is a vertical side view showing a conventional example using wet type 1 method. 1... Concrete outer wall 2... Insulation material 3... Anchor bolt 4...
・Spacer 5...Brim 6...Exterior plate 7...Screw 8...Adhesive 9...Reinforcement material 10...Mortar 11...Exterior material 12...Outdoor concrete mold Frame 13...Insulating material 14...Brim 15...Anchor part 16-18...Anchor part 19...Bending plate 20...Anchor part 2I...H-shaped metal fitting 21a...・Legs 21b...Pin 22...
Reinforcing bars 23... Indoor concrete formwork 24
... Concrete 25 ... Exterior material 26 ... Nails

Claims (2)

[Claims] (1) When constructing a concrete external wall of a concrete structure, a heat insulating material and a rim lined with the heat insulating material and having an anchor part on the concrete pouring side are placed inside the outdoor concrete formwork of the external wall. Place it by temporarily fixing it to the concrete formwork with nails or screws, arrange reinforcement, set the indoor concrete formwork, pour concrete, remove the formwork after the concrete hardens, and attach the exterior to the rim. A construction method for external insulation walls of structures, which is characterized by fixing materials with nails or screws. (2) The method for constructing an external heat insulating wall of a structure according to claim 1, wherein the rim is made of an inorganic noncombustible material.