JP2010048005A - Autoclave lightweight concrete panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure of an ALC (autoclave lightweight concrete) panel resistant to concentrated load and impact to eliminate a fault that an angular part is easily chipped even if permitting errors in depth and width dimensions to a certain extent without needing to precisely control a cutting depth. <P>SOLUTION: The ALC panel whose length direction end is given tongue and groove working, has two surfaces substantially parallel with a panel surface of the ALC panel, two inclined surfaces following the two surfaces, and a surface that connects the two inclined surfaces, at a groove machined part of the tongue and groove working. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to the shape of the long edge of the panel when a lightweight cellular concrete (ALC) panel is used as the wall material.

When using lightweight cellular concrete (hereinafter referred to as ALC) panels as building walls, there are two main types of ALC panel mounting methods: wet construction using mortar and joint reinforcement and dry construction using only mounting hardware. Can be separated. The wet construction method is a construction method in which a panel having a circular groove processed on the long side edge is used, and the joints fixed to the frame and the ALC panel are fixed to each other with mortar flowing in the circular groove. Although this mounting structure can constitute a highly rigid wall, it cannot follow the deformation of the building frame caused by external forces such as earthquakes, so cracks may occur during deformation, leading to problems such as water leakage and falling. Concerned.
On the other hand, in the dry construction method, both ends of the panel in the length direction are fixed to the frame of the building independently for each panel, and the long side of the panel slides when the frame is deformed, or one end in the length direction. This is a construction method in which the mounting portion of the slidably follows the housing. In recent years, the dry construction method has been mainly adopted because of its ability to follow the deformation of the frame and good workability.

In the dry construction method, generally, a panel having actual processing (concavo-convex processing for joining) applied to the long side edge surface is used. The reason is as follows.
(1) Ensure fireproof performance,
(2) When used for partitioning, eliminate light leakage,
(3) Prevent panel out-of-plane deflection and backlash between panels.

For example, as shown in FIG. 6, the actual machining of such a long side edge is performed by a cutter in which a cutting tip 3 is arranged on the circumference of the cutting cutter disk 4. Since ALC is weaker against intensive loads and impacts than ordinary concrete and wood, and has the disadvantage that corners are easily chipped, it has a substantially trapezoidal cross section with corners obtuse as shown in FIG. .
JP 2003-253785 A

  However, in the case of such a cutting method, if the cutting depth changes for d1 and d2 as shown in FIG. 8A, the width dimensions b1 and b2 also change. It is difficult to precisely control the cutting depth, and errors in depth and width must be allowed to some extent. At this time, with respect to the purpose (3) of the actual machining, the gaps s1 and s2 between adjacent joints of the actual machining are changed as shown in FIG. There will be a difference in effect.

  For this reason, in this invention, it is the lightweight cellular concrete panel by which the actual processing is given to the fore edge of a length direction, Comprising: The female processing part of this actual processing is two surfaces substantially parallel to the panel surface of a lightweight cellular concrete panel. And a lightweight cellular concrete panel having two inclined surfaces following them and a surface connecting the two inclined surfaces.

In the lightweight cellular concrete panel of the present invention, the surface connecting the two inclined surfaces can be an arc surface.
The plane connecting the two inclined surfaces may be a plane substantially perpendicular to the panel surface of the lightweight cellular concrete panel.
Furthermore, the depth of the female machining portion is made larger than the height of the corresponding male machining portion.

In the case of the ALC panel according to the present invention, the width of the knife processing portion of the actual processing becomes constant without being affected by the processing error of the depth dimension. When configured, it is possible to reliably obtain the effect of preventing the deflection and rattling of the panel in the out-of-plane direction.
In the actual machining of the present invention, there is a high probability that the corner portion of the knife machining will become right-angled and chipped, but there will be no problem in appearance because it will eventually be hidden inside the wall surface. An effect to prevent rattling is obtained.

The ALC panel of the present invention will be described below with reference to the drawings.
FIG. 1 shows an external perspective view of the processed shape on the actual knife side of the long edge of the ALC panel of the present invention. This real knife processing part P1 consists of the bottom part 1-1 and the side wall part 1-2, and the surface 1-3 parallel to a panel surface is formed in a part of side wall part 1-2.
FIG. 2 is an external perspective view showing a processing method of the actual knife processing portion of the ALC panel of the present invention.
As shown in FIG. 2, the actual knife processing of the ALC panel of the present invention is carried out in the length direction with a conveyor or the like in a flat state after molding the length and thickness with a piano wire and curing the autoclave. The cutting cutter disk 4 to which the cutting tip 3 is fixed is rotated to perform processing. As shown in FIG. 3, the cross-sectional shape of the cutting tip 3 is such that the width of the base portion is B1, the width of the tip portion is B2, the height of the cutting tip spire portion is D1, and the total height of the tip is D2. Of course, B1> B2 and D1 <D2. Processing is performed by adjusting the center position of the cutting cutter disk 4 to which the cutting tip 3 is fixed.

  By doing in this way, as shown in FIG. 1, the surface 1-3 parallel to a panel surface is formed in a part of side wall part 1-2, and a process width dimension can be made constant. FIG. 4 shows the dimensional relationship of the joint portion of the actual processing using the female processing portion processed in this way.

In the actual ALC panel long-side processed joint shown in FIG. 4, since the knife processing width dimension b1 is constant even if the depths d1 and d2 vary, no gap dimension error occurs in the joint. There is no difference in the effect of suppressing the deflection of the panel due to the force in the out-of-plane direction and the shakiness between the panels. Note that if the female processing width dimension b1 is the same as the male processing width b ', there is no theoretical backlash between the panels of the panel. However, it may be difficult to fit the male processing and the female processing due to warping of the panel. Therefore, it is desirable that the female processing width dimension b1 is a male processing width dimension b ′ + 2 mm.
If a load that is large enough to be pushed or hit by a person is applied to the outside of the panel surface, there is a possibility that part C of the facet with the female machined part and part D of the facet with the male machined part will be damaged. Although there are few, filling a cushion material in the gap between the actual parts is effective in protecting these when a larger load is applied. Various rubber plates, rock wool, ceramic fiber blankets, etc. can be used as cushion materials. It is also effective to protect the actual part by machining two surfaces that are substantially parallel to the panel surface in the male processed part so that the male processed part and the female processed part support the load on the surface. is there.

  In addition, when a large load is applied to the outside of the panel surface, such as when furniture or ceiling material collides with the panel during an earthquake, the D part of the small facet with the male processing part does not break due to shear stress. For this purpose, it is desirable to ensure the male processed part width dimension b ′ of 20 mm or more, and therefore it is desirable to ensure the dimension of the groove width b1 of the female processed part of 22 mm or more.

  FIG. 5 is an external perspective view showing another example of the processing method of the actual knife processing portion of the ALC panel of the present invention. While the panel is being conveyed in the length direction, the cutting bit 5 shown in FIG. 5 is used to adjust the insertion / extraction position of the cutting bit in the depth direction, and a surface 1 parallel to the panel surface is partially formed on the side wall 1-2. -3 is always formed so that the machining width dimension is constant.

It is an external appearance perspective view of the ALC panel of this invention. It is an external appearance perspective view which shows an example of the processing method of the ALC panel of this invention. It is sectional drawing of the cutting tip used by the process of the ALC panel of this invention. It is a figure explaining the dimension of the junction part of the ALC panel of this invention. The perspective view which shows another processing method of the ALC panel of this invention. It is an external appearance perspective view which shows an example of the processing method of the conventional ALC panel. It is an external appearance perspective view of the actual process part of the conventional ALC panel. It is a figure explaining the dimension of the junction part of the conventional ALC panel.

Explanation of symbols

P lightweight cellular concrete panel P1 female processing part P2 male processing part 1-1 processing part bottom part 1-2 side wall part 1-3 surface parallel to the panel surface 3 cutting tip 4 cutting cutter disk 5 cutting bit

Claims (4)

  A lightweight aerated concrete panel that has been subjected to actual processing at the small edge in the length direction, the female processing part of the actual processing is two planes substantially parallel to the panel surface of the lightweight aerated concrete panel, and the inclination following them A lightweight cellular concrete panel characterized by having two surfaces and a surface connecting the two inclined surfaces.   The lightweight cellular concrete panel according to claim 1, wherein a surface connecting the two inclined surfaces is an arc surface.   The lightweight cellular concrete panel according to claim 1, wherein a surface connecting the two inclined surfaces is a plane substantially perpendicular to a panel surface of the lightweight cellular concrete panel.   The lightweight cellular concrete panel according to any one of claims 1 to 3, wherein a depth of the female processed portion is larger than a peak height of a corresponding male processed portion.

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