JPH041229Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a wall structure frame material used, for example, in an external heat insulation wall structure.

[Prior art]

Nowadays, with advances in air conditioning technology and strict demands for energy conservation, it is becoming more common to improve the insulation properties of building exterior walls.

In order to improve the insulation properties of the outer wall of a building, there are two methods: an external insulation wall construction method in which a heat insulating material 3 is placed outside the reinforced concrete wall portion 2 of the outer wall 1 as shown in Figure 5A, and an external insulation wall construction method as shown in Figure 5B. As shown in FIG. 2 functions as a heat storage material, which is known to be advantageous in that energy consumed in air conditioning such as heating and cooling can be saved.

By the way, in the conventional external insulation wall construction method, after forming a reinforced concrete wall part by constructing a formwork, for example, as shown in FIG. The heat insulating material 3 and the exterior material 5 are attached using anchor bolts 4 and the like. In addition, in order to prevent vibration and deformation of the exterior material 6 in the thickness direction, a frame material (crosspiece) 6 is placed between the reinforced concrete wall portion 2 and the exterior material 5 at an appropriate interval in the vertical or horizontal direction. It is customary to be placed. Such a frame member 6 is fixed to the reinforced concrete wall portion 2 using concrete nails or the like (not shown).

[Problem that the invention attempts to solve]

Therefore, in order to form a reinforced concrete wall portion, it is necessary to assemble formwork inside and outside the reinforced concrete wall portion, and it is also necessary to take time and effort to remove the formwork after forming the reinforced concrete wall portion. This is disadvantageous in terms of shortening the construction period and reducing costs. Further, since work is required to fix the frame material to the reinforced concrete wall portion, this is disadvantageous in terms of further shortening the construction period and reducing costs.

For example, as a means to solve these problems,
As disclosed in Utility Model Publication No. 58-5789,
It has been proposed that the frame material is provided with lath fixing protrusions to engage with the lath board, but although this saves the labor of assembling formwork to form the concrete wall part, However, there still remained the problem that it took time to remove the formwork and that anchor bolts and the like had to be installed for attaching the exterior material.

[Means for solving problems]

The present invention has been developed in consideration of the above circumstances, and it is possible to securely and easily fix the frame material between the exterior material and the reinforced concrete wall part to the reinforced concrete wall part by simply driving nails. The object of the present invention is to provide a frame material for a wall structure that can be used to reduce construction time and cost.

In order to achieve this purpose, the wall structure frame material according to the present invention has a lip extending outward from both legs of the frame material, and a lip at an appropriate interval in the longitudinal direction. In a frame material for a wall structure in which claws are formed by hammering out to engage ribs that also serve as formwork plates of a concrete wall portion, the basic cross-sectional shape of the frame material is configured in a U-shape, and the lip is formed into a U-shape. Narrow slits extending substantially perpendicularly from both legs of the U-shape are formed intermittently along the bottom of the V-shape of the U-shape frame, leaving slight gaps. shall be.

When forming a reinforced concrete wall section, the wall structure frame members constructed in this way are arranged at appropriate intervals so that the lips thereof run along the outer surface of the reinforced concrete wall section. Then, the ribs developed along the outer surface of the reinforced concrete wall part are engaged with the claws of the lip, while the inner formwork is assembled opposite the ribrass, and concrete is placed between the inner formwork and the ribrass. It can be poured and solidified. In this way, since the frame material and the libras serve as the outer formwork for the reinforced concrete wall section, there is no need to construct a separate outer formwork or to remove the outer formwork after the reinforced concrete wall section is formed. Further, as the concrete solidifies, the frame material is firmly connected to the reinforced concrete wall portion through the ribrass, so that work such as nailing to fix the frame material to the reinforced concrete wall portion is no longer necessary.

In particular, in the case of the present invention, when attaching the exterior material, the nail that passes through the exterior material is simply driven into the slit in the frame material, and the nail is held by both sides of the slit in a manner that prevents it from coming out. Therefore, there is no need to install anchor bolts, etc. for attaching exterior materials to the reinforced concrete wall section. When driving this nail,
Since the tip of the nail is guided into the slit by the V-shaped valley, the nail can be driven smoothly and easily.

The above-mentioned frame material can be manufactured at low cost by, for example, forming the basic cross-sectional shape by roll-forming a hoop material, and forming slits and claws during or after this roll-forming process. I can do it. A press or the like may be used to form the slits and claws after roll forming.

〔Example〕

FIG. 1 shows an embodiment of the frame material according to this invention. As shown in FIG. 1, a hoop material is rolled into an M-shape made of iron or steel, and a lip 14 is formed on both sides from the ends of both legs 14a of the M-shape.
It has a basic cross-sectional shape in which b extends. Also,
Slits 22 are intermittently formed in the V-shaped valley bottom 14c of the column 14 along the valley fold line, and the slits 22 are formed in the thickness direction at appropriate intervals in the longitudinal direction of the column 14. A large number of U-shaped (or V-shaped) claws 28 are provided.
These slits 22 and 23 are preferably formed in a process of roll forming the basic cross-sectional shape, but
After the basic cross-sectional shape is roll-formed, it may be formed using a press or the like.

FIG. 2 shows an external heat insulating wall structure formed using the frame material according to this invention as a nail receiving bar, and the construction procedure thereof will be explained below together with the method of using the nail receiving bar. First, an outer formwork is assembled on the outside of the reinforcing reinforcing bars 11a by the following procedure. That is, the nail receiving bars 14 cut to predetermined dimensions are stood up at predetermined intervals so that the lip sides thereof coincide with the outer surface (actually, the intended surface) of the reinforced concrete wall portion 11. Next, on the outside of the wall of the raised nail receiving bar 14, in order to prevent the nail receiving bar 14 from tilting during subsequent concrete pouring, a horizontal member (not shown) is attached to a plurality of nail receiving bars using grid lines or the like. It is fixed over 14 days. The cross-sectional shape and size of the horizontal members and the vertical spacing are appropriately set in consideration of the thickness and height of the reinforced concrete wall portion 11, the strength and spacing of the nail receiving bars 14, and the like.

After assembling the horizontal members, the Ribrass 12 is engaged with the claws 23 formed on the lip 14b of the nail receiver bar 14, and the Ribrass 12 is stretched between the nail receiver bars 14, and the Ribrass 12 and the nail are attached. Receiving bar 1
4 with an appropriate interval vertically between the crosspiece member 13
Insert.

After the outer formwork is assembled in the above procedure, or in parallel with this assembly, the inner formwork is assembled using a conventional construction method, and when the assembly of the pillars 14 and the inner formwork is completed, the concrete 11b is It is injected between the libras 12 and the inner mold and solidified. At this time, even if the librus 12 bends toward the outside of the wall due to the pressure of the concrete 11b, so-called bulging, this does not pose a practical problem. The water that oozes out from the concrete 11b when the concrete 11 solidifies is absorbed by the libras 12.
evaporates or flows out between the meshes.

When concrete 11b solidifies, libras 1
2 is embedded in and fixed to the surface of the concrete 11b, and the column material 14 is fixed to the concrete 11b via this librus 12. Then, only the inner formwork is removed and, preferably after curing, on the one hand the cross members are removed and the insulation 15 of the outer structure 18 is removed.
and the exterior material 16 are assembled, and on the other hand, the heat insulating material 19 of the inner structure portion 21 and the interior panel 20 are assembled.

Exterior material 16 is nailed to pillar material 14. That is,
As shown in FIG. 4, nails 17 penetrated through the exterior material 16 are bitten into the slits 22 of the column material 14, so that the exterior material 16 is held by the column material 14 in a manner to prevent it from coming off. Fix it.

When the heat insulating material 15 is made of a solid material such as styrene foam or glass wool, the heat insulating material 15 is spread between the pillars 14 while the exterior material 16
For example, as shown in FIG.
If the material is fluid and has fluidity, the exterior material 16 is attached using the German board method as shown in Fig.
and the exterior material 16, where it can be fired and cured.

In addition, when the heat insulating material 19 of the inner structure part 21 has hygroscopicity or breathability, the outer structure part 18
The inner structure part 21 can also be used as an inner formwork in the same way as it can be used as an outer formwork.

[Effect of idea]

As described above, the wall structure frame material of the present invention has lips extending outward from both legs of the frame material,
At appropriate intervals in the longitudinal direction of the lip,
In a frame material for a wall structure, in which claws are formed by hammering out to engage ribs that also serve as formwork plates for a concrete wall portion, the basic cross-sectional shape of the frame material is configured in a U-shape, and the lip is formed into a U-shape. Narrow slits extending at a right angle from both legs of the U-shape are intermittently formed along the bottom of the V-shaped valley of the U-shape frame material, leaving a small gap. It is effective.

In other words, since a slit is provided at the bottom of the V-shaped valley of a frame material whose basic cross-sectional shape is U-shaped, when a nail that penetrates the exterior material is driven into a position corresponding to the installation of the frame material, the tip of the nail that has penetrated the exterior material will form a V-shape. The narrow slit at the bottom is automatically pushed out while being guided by the valley and driven into a state where it can be prevented from falling out, making it possible to reliably and easily secure the exterior material to the frame material. It can be fixed in place, and there is no need to install anchor bolts or the like to attach the exterior material to the concrete wall. As a result, it is possible to not only reduce the time and effort required to install and dismantle the outer formwork, but also to reduce the time and effort needed to fix the frame material to the concrete wall, and in particular, to reduce the time and effort involved in installing and dismantling the outer formwork, as well as the time and effort required to secure the frame material to the concrete wall. It is possible to omit the labor and time involved, and it is possible to significantly shorten the construction period and reduce costs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of an embodiment of the present invention, Fig. 2 is a perspective view of the main parts of an external heat insulation wall structure using the frame material, and Fig. 3 is a schematic diagram of the external heat insulation wall structure. 4 is a longitudinal sectional view showing the exterior material mounting structure, FIG. 5A is a schematic diagram showing the outline of the internal insulation wall structure, and FIG. 5B is a schematic diagram showing the outline of the external insulation wall structure. , FIG. 6 is a sectional view of a conventional external heat insulation wall structure. 11...Concrete wall part, 12...Ribrass, 14...Frame material (nail receiving bar), 14a...
Leg, 14b... lip, 14c... V-shaped valley bottom,
22...Slit, 23...Claw.

Claims (1)

[Scope of utility model registration request] Lips are extended outward from both legs of the frame material, and claws are hammered into the lips at appropriate intervals in the longitudinal direction to engage with the ribs that also serve as formwork boards for the concrete wall portion. In the formed wall structure frame material, the basic cross-sectional shape of the frame material is U.
It is configured in the shape of a U-shape, with the lip extending at a substantially right angle from both legs of the U-shape, and narrow slits are arranged intermittently along the bottom of the V-shaped valley of the U-shaped frame material, leaving a slight gap. A frame material for a wall structure characterized by being formed as follows.