JPH0222412Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a lightweight aerated concrete panel in which metal fittings are embedded for attachment to the structural framework of a building, etc.

Conventionally, as a mounting structure for attaching a lightweight aerated concrete panel to the structural frame of a building, etc., for example, as shown in Fig. The other end of the mounting bracket 3, which is formed into an L-shape and has one end locked to the structural frame 2 of the building, is inserted into the recessed hole 1a, and is tightened with a washer 4 and a nut 5 inside the recessed hole 1a. After fixing, there is a method in which the depressed hole 1a is filled with a repair material such as mortar.

With this mounting structure, the ALC, which has relatively low strength,
Since the end of the mounting bracket 3 is directly fixed to the plate 1, there is a drawback that the concrete around the mounting bracket 3 is easily destroyed when an external force F in the direction of the arrow is applied, and there is also a depression hole 1a for fixing the mounting bracket 3. Traces remain on the surface of ALC board 1, causing cracks and water leakage.

Furthermore, in the mounting structure shown in Fig. 1b,
Reinforcement bars 6 buried to reinforce ALC board 1
A fixing metal fitting 7 such as a long nut is welded to the housing in advance, and a bolt 8 inserted from the structural frame 2 of the building is screwed into the fixing metal fitting 7 and fixed.

In this mounting structure, it is necessary to directly weld the fixing fittings 7 to the reinforcing bars 6, which complicates the manufacturing work of the ALC board 1 and is the main cause of hindering labor-saving. Furthermore, since the rigidity of the mounting portion is low, there is a risk of local destruction when external force F shown by the arrow is applied.

The object of the present invention is to eliminate such conventional drawbacks and provide a lightweight cellular concrete panel that has high installation strength, can be manufactured efficiently, and is suitable for mass production. In order to achieve this purpose, the present invention provides an ALC panel that incorporates reinforcing reinforcing bars and embedded metal fittings that are locked to the reinforcing bars.
The embedded fitting has a fixing part into which a fixing bolt for fixing the ALC panel to the structural frame of a building is screwed, and a plurality of arms extending outward from the fixing part, and A method is adopted in which the distal end of the arm is locked to the reinforcing bar and a stepped force is generated in the reinforcing bar to fix the embedded metal fitting to the reinforcing bar.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.

The lightweight aerated concrete panel of this invention (hereinafter referred to as
The ALC board) 10 is reinforced with cage-like reinforcing bars made up of horizontal reinforcements 11 and vertical reinforcements 12, as shown in FIG. An embedded fitting 13 is attached and built in using these reinforcing bars 11 and 12.

This embedded metal fitting 13 is essentially as shown in FIGS.
- As shown in FIG. 5, fixing bolts 1 for fixing the ALC panel 10 to the structural frame 17 of the building
9 is screwed into the fixing part, for example, a long nut 15;
It is composed of a plurality of arms 14, for example four arms, extending outward and in all directions from the long nut 15.

In addition, a notch 16 is formed at the tip of the arm 14, and the notch 16 is tapered so that its opening side widens somewhat, and the deepest part of the notch 16 has a horizontal stripe. A curvature surface having a size corresponding to the diameter of the arm 11 is formed so that the arm 14 can be locked to the horizontal strip 11.

Furthermore, when the arm 14 is locked to the horizontal reinforcement 11 and the cage-shaped reinforcement is built into the ALC panel 10,
The arm 1 is arranged so that the end surface of the long nut 15 (the end surface on the opposite side to the direction in which the arm 14 extends) is located slightly inward from the back surface of the ALC panel 10.
4 and the welding position relative to the long nut 15 have been determined.

In determining the length of the arm 14, as shown in FIG.
The length of the arm 14 is determined to such an extent that elasticity can be generated in the transverse striations 11 of the book. That is,
The length of the arm 14 is such that the position of the notch 16 of the arm 14 is not on the center line (not shown) of the horizontal strip 11 when the embedded metal fitting 13 is projected from the longitudinal direction of the long nut 15.

In order to incorporate the embedded metal fittings 13 into the ALC panel 10, after setting the cage-shaped reinforcing bars in a formwork (not shown), two adjacent horizontal bars 11 are inserted as shown in FIGS. 2 and 4. The approximately central portion of the arm 14 is pushed outward slightly to lock the arm 14 to the horizontal strip 11. Then, elasticity is generated in the horizontal stripes 11, and the two horizontal stripes 11 come to sandwich the embedded metal fitting 13. As a result, the arm 14 is fixed from the transverse reinforcement 11.

Finally, the formwork is molded using well-known methods and equipment.
After going through processes such as pouring the ALC raw material, an ALC panel like the one shown in Figure 2 will be obtained.

Next, the ALC board 10 with the embedded metal fittings 13 built in
For installation to the structural frame of a building, etc., as shown in FIG.
One end is attached, and a fixing bolt 19 is inserted into the other end and screwed into the long nut 15 of the embedded fitting 13 to fix it.

With such an ALC board 10, the embedded metal fittings 13 are secured to the reinforcing bars with sufficient support force to withstand vibration and foaming resistance during ALC board manufacturing, making it possible to accurately maintain the mounting position. , installation on buildings etc. can be done accurately and easily. In addition, the embedded metal fitting 13 can be attached to the arm 14 by press processing or the like in advance.
It can be manufactured by molding and welding it to a long nut 15, and when attaching it to the ALC board, there is no need to directly weld it to the reinforcing bar as in the past, just by inserting the reinforcing bar into the notch 16 of the arm 14. It can be easily omitted during installation and is also suitable for mass production. Furthermore, since the embedded fittings 13 are attached to the reinforcing bars at four locations, the external force acting on the ALC board 10 is
Since the force is distributed over the entire ALC board 10, no force is applied locally, thereby preventing damage to each part. In addition, the embedded metal fitting 13
are all reinforced reinforcing bars 11 when forming the ALC plate 10,
Since it is built in together with the ALC board 12, there is no risk of spot digging marks remaining on the surface of the ALC board 10, cracks, or water leakage.

In the above embodiment, a case has been described in which four arms are attached to reinforcing horizontal reinforcements, but it is also possible to increase the number of arms, and the arms may be attached to reinforcing bars other than the horizontal reinforcements.

As explained above in detail with the embodiments, according to the present invention, the ALC plate is formed after the embedded metal fittings are attached to reinforcing reinforcing bars by utilizing their elasticity, so the mounting strength of the ALC plate is increased. It has high water resistance and excellent water stopping properties. In addition, when forming ALC plates, the embedded metal fittings can be inserted and fixed into the reinforcing bars with one touch, so there is no need for welding, which saves labor during installation work.
After forming the ALC board, no processing is required, reducing the cost of the ALC board and making it suitable for mass production.

[Brief explanation of the drawing]

Figures 1a and 5 are explanatory diagrams of the mounting structure of conventional lightweight aerated concrete panels, respectively, and Figures 2 to 5
The figures show one embodiment of the lightweight aerated concrete panel of the present invention, Fig. 2 is a partially cutaway external perspective view, Fig. 3 a and b are a front view and plan view of the embedded fittings, and Fig. 4 is a Explanatory diagram of the installation state of the embedded metal fittings, No. 5
The figure is a sectional view showing how it is attached to a building or the like. In the drawing, 10 is an ALC board, 11 and 12 are reinforcing bars,
13 is an embedded metal fitting, 14 is an arm, 15 is a long nut, 16 is a notch, 17 is a structural frame of a building, 18
19 is a mounting aid, and 19 is a fixing bolt.

Claims (1)

[Scope of utility model registration request] In a lightweight cellular concrete panel 10 that incorporates reinforcing reinforcing bars 11 and 12 and embedded fittings 13 that are locked to the reinforcing bars, fixing for fixing the lightweight cellular concrete panel to the structural frame 17 of a building. a fixing part 15 into which a bolt 19 is screwed;
The embedded fitting 13 includes a plurality of arms 14 extending from the fixed portion thereof, and the arm 14
A lightweight aerated concrete panel in which the embedded metal fittings 13 are fixed to the reinforcing bars 11, 12 by locking the tip ends thereof to the reinforcing bars 11, 12 and causing elasticity in the reinforcing bars 11, 12.