JPS6055152A - Outer wall construction of concrete 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 The present invention relates to a method for constructing a dry exterior wall of a building, in which exterior panels formed by extrusion of an inorganic material such as asbestos cement are layered on a concrete wall surface.

Fasteners for fixing exterior plates are temporarily fixed on the inner surface of the outer formwork for pouring concrete walls at predetermined intervals, concrete is poured into the formwork, and after the poured concrete has hardened, the mold is removed and the concrete wall surface is removed. Attach each of the fixing fasteners to the
It is characterized in that it is anchored and then forms the outer wall of a building with built-in exterior panels through the same anchoring fasteners,
The purpose of this invention is to provide a method for constructing an external wall of a concrete structure that does not require correction of irregularities on the concrete pouring surface and has excellent one-dimensional accuracy.

In the present invention, as described above, fasteners for fixing exterior plates are temporarily fixed in advance at predetermined intervals on the inner surface of the outer formwork for pouring concrete walls, and concrete is poured into the outer formwork. At the same time as the concrete wall is constructed, the fasteners for fixing the exterior plate are integrally attached to the wall at a predetermined location.

Therefore, by assembling the exterior plate through the fixing fasteners, the exterior plate can be accurately attached to the concrete wall at a predetermined position.

In the present invention, as described above, the outer wall of a building is configured by combining a prefabricated exterior plate and its fixing fasteners.

By using factory-produced exterior panels with excellent dimensions and precision, exterior work can be done without the need to modify the smoothness of the exterior wall surface or modify the unevenness of the concrete pouring surface. It is something that can be done. Furthermore, all of the exterior walls are constructed using dry 1'i' construction, making it highly workable.

The present invention has many advantages, such as being able to economically construct outer walls with excellent precision.

(1) is an exterior material composed of extruded panels made of inorganic material such as asbestos cement.The exterior material (1) shown in Figure 6 has a vertical hollow part (1α) and a gentle undulating part ( The exterior material (1) shown in FIG. 4 has a flat surface, and the exterior material (1) shown in FIG. 5 has a curved surface that bulges out toward the outer surface. Each of the exterior panels (1) is provided with a trapezoidal engagement protrusion (1h) having a wide end surface and a vertical end surface on the inner surface of both lateral edges thereof.

(3) is anchored to the surface of the concrete wall (2), and is constructed by extruding inorganic material such as T:J cotton cement in the same way as the covering material (1), and is reinforced with resin etc. as necessary. It is a molded material mixed with material, and one side of the outer surface is formed as an inclined surface that abuts the one side inclined surface that falls on the engagement protrusion (1h) of the said exterior material, and the other side is formed as a vertical surface. A groove (3a) with a trapezoidal cross section extending in the vertical direction is provided, and a dovetail groove (3a) is provided on the inner surface to enhance adhesion to concrete.
h) is provided. Note that the concave groove (3α) of the fixing fastener (3) may be formed into a wide dovetail groove as shown in FIG.

Then, the fixing bolts (3) are attached to the concrete casting surface of the outer formwork (4) for concrete wall casting at predetermined intervals. Regarding the fixing fastener (3), for example, in the fixing fastener (3) as shown in FIG. ) are taken out at predetermined intervals on the inner surface of the formwork (4) via bolt nuts (6), and the temporary fittings (5) are engaged with the four-strip grooves (3α) of the fixing fastener (3).

Further, the fixing fastener (3) shown in FIGS. 6 to 6 and 8 is directly fastened to the formwork (4) with bolts and nuts.

As mentioned above, the outer fSll formwork (4) for concrete wall pouring, to which fixing fasteners (3) are attached at predetermined intervals, is erected at the D1 position, and the inner formwork (4') is placed at predetermined intervals. Separate rake (7) and formwork clamping rod (8)
) Conc IJ-1 is poured between the two assembled formworks (4) (4'). Note that (9) (lot) in the figure is a thick piece of wood.

(Refer to FIG. 2) When the poured concrete is removed after hardening, fixing fasteners (3) are anchored at predetermined positions on the surface of the concrete wall (2).

Next, the locking protrusions (Ih) on both ends of the exterior material (1) are inserted across the four grooves (3α) (3α) of the adjacent fixing fasteners f3) (3) anchored to the concrete wall (2) surface. ) (1
b) are fitted as shown in the dotted line in Fig. 8, and the entire exterior plate (1) is moved in the direction of the arrow to connect the locking protrusion (t1!I) and the four-striped groove (3α). At the position where the slopes meet, insert the exterior material fixing material ((1)) between the vertical surface of the locking protrusion (1b) and the vertical surface of the four-striped groove (3α) to attach the exterior material (1). Fix it to the fixing fastener (3) (a). Next, fix the next exterior material (1) to the fixing fastener (3) in the same manner as above, and then repeat the same operation to fix the exterior material u'
The outer wall surface is constructed according to (1).

Next, back-up material (1) and caulking material (2) are filled into the joints between adjacent exterior materials (1), (2), and the entire process is completed.

In the embodiment shown in FIG. 4, a gap is provided between the exterior material (1) and the concrete wall (2), and a heat insulating material IJ41 such as hard urethane foam is filled in the gap.

In addition, as shown in Figure 5, by forming the exterior material (1) into a curved shape that bulges outward and creating an air layer between it and the concrete wall (2), the external insulation effect of the building can be achieved. It was designed so that

In the illustrated embodiment, as described above, the exterior wall is constructed by combining the exterior material (1) made by extruding inorganic materials such as asbestos cement and the fixing fastener (3). By using factory-produced molded panels with excellent dimensional accuracy as material (1), there is no need to modify the smoothness of the exterior surface, and exterior work can be carried out without having to modify the unevenness of the concrete pouring surface. I can do it. Also, the fixing fastener (3) anchored to the concrete wall (2)
), the exterior material (
1) is fixed, so the exterior material (1) will not fall off from the two sides of the lotus 5, and since no metal fittings are used for the exterior material (1), there is no corrosion of the mounting hardware as in the conventional case. The problems caused by this will be completely eliminated.

Furthermore, decorations such as uneven patterns and tiling can be easily added to the surface of the exterior wall (1).Furthermore, the construction of the exterior wall is entirely dry (i/? construction), making it easy to work with and has excellent precision. is economically structured.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention can be implemented in such a manner! Not limited only to KI cases1
Various modifications may be made without departing from the spirit of the invention.

[Brief explanation of drawings]

Fig. 1 shows a +111 VL constructed by the external wall construction method of a concrete structure according to the present invention (a front view with a part of the body cut out; Fig. 2 is a cross-sectional plan view showing the formwork assembled state;
6 and 7 are cross-sectional plan views showing each example of the outer wall of a concrete 1 structure constructed by the method of the present invention, and FIG. 8 is a cross-sectional plan view showing the assembled state of the exterior material. be. (1)...Exterior material, (2)...Conc IJ -)
1'lL (3)... Fixing fastener, (4)...
External formwork for pouring concrete walls. Agents: 6 patent attorneys and non-Kaihon important literary figures/Fig. 1 Fig. 2

Claims (2)

[Claims] (1) Fasteners for fixing exterior plates are temporarily fixed on the inner surface of the outer formwork for pouring concrete walls at predetermined intervals, concrete is poured into the formwork, and the cast concrete is removed from the form after it hardens. A concrete structure σ) characterized in that the above-mentioned fixing fasteners are integrally anchored to the concrete wall surface, and then an exterior plate is assembled via the fixing fasteners to constitute the outer wall of the building. Exterior wall construction method. (2) Conc I+ -) The method for constructing an exterior wall of a concrete structure as set forth in claim 1, characterized in that a heat insulating material is interposed between the i-side and the exterior plate.