JPH0426567Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a lightweight cellular concrete panel, and more specifically, a lightweight cellular concrete panel with joint material, which is characterized in that it is constructed by attaching a joint material to the end face. It is related to.

<Prior Art> External walls of conventional buildings constructed using lightweight aerated concrete panels have been constructed using the so-called insertion bar construction method, as shown in FIG. 3, for example.

That is, in this insertion bar construction method, reinforcing bars 8 are inserted between mutual joints of concrete panels 1, 1, and a flat plate 4 is fixed to a beam or the like in order to position the reinforcing bars 8 in a predetermined position. The angle 5 is welded and fixed, and the reinforcing steel 8 is further welded and fixed to the protrusion inside the opening of the plate 4, and then mortar is injected between the concrete panels 1, 1 to construct the outer wall of the building. This is a method of construction.

When implementing this construction method, it is necessary to make the outer wall a fireproof structure, so concrete panels 1,
A joint material 3 such as rock wool was manually filled into the joint portion 2 between the joints 1 and 1.

<Problems to be solved by the invention> However, when filling the joint part 2 between the concrete panels 1 and 1 with joint material, the worker must fill the joint material by intuition, so it requires skill. There were problems in that it was time-consuming, time-consuming, and extremely inefficient.

In addition, since workers perform joint work based on intuition,
There was also a problem that sometimes the joint material 3 was not sufficiently filled around the area where the flat plate 4 was interposed.

Therefore, in this case, the plate 4 was not sufficiently coated with fireproofing, resulting in problems such as problems with the fireproofing of the building.

The lightweight aerated concrete panel according to the present invention is
This is a completely new technology that was developed in view of the above-mentioned drawbacks of the conventional method.In particular, by pre-attaching joint material to the end faces of concrete panels, the above-mentioned problems and drawbacks of the conventional method can be completely eliminated. This is an attempt to improve the situation.

<Means for solving the problem> The lightweight aerated concrete panel according to the present invention has the following features:
This is a fundamental improvement over the conventional problems described above, and its gist is that a joint material is fixed to the upper end surface, the lower end surface, or both upper and lower end surfaces of the panel, and at least one end of the joint material is fixed. A recess is provided on the outer surface of the panel and on the back side of the panel.

<Function> As mentioned above, the lightweight aerated concrete panels according to the present invention have joint material fixed to the upper or lower end surfaces of the panels, so the joints can be fixed by simply arranging these lightweight aerated concrete panels one after the other. It is possible to easily construct an external wall with a structure in which joint material is reliably interposed between the joints.

In addition, since a recess is provided on the outer surface of the end of the joint material, a flat plate used for fixing reinforcing bars can be inserted into this recess. Therefore, the plate inserted into the recess can be completely fireproofed by the joint material.

<Example> An example of the lightweight aerated concrete panel according to the present invention will be specifically described with reference to figures. FIG. 1 is a perspective explanatory view showing the structure of the panel according to the present invention;
FIG. 2 is a perspective explanatory view showing how the panel is used.

In FIGS. 1 and 2, 1 is a lightweight cellular concrete panel, and 7 is a joint material made of rock wool that is attached to the end face of this lightweight cellular concrete panel 1.

A flat recess 6 into which a flat plate 4 can be inserted is provided on the outer surface of the corresponding end portions of the joint material 7 on the back side of the panel.

Further, in this recess 6, a notch 9 is bored in the center of the lightweight cellular concrete panel 1 in the thickness direction. This notch 9 is for inserting the reinforcing bar 8.

An example of constructing an outer wall of a building using the lightweight aerated concrete panel 1 of the present invention having the structure as described above will be described as follows.

As shown in FIG. 2, after a plurality of lightweight cellular concrete panels 1 are arranged in parallel, the plate 4 is inserted into the recess 6 formed by the end of the joint material 7 of the adjacent lightweight cellular concrete panels 1. Next, the plate 4 is fixed by means such as welding to the angle 5 fixed to a beam or the like as shown in FIG.

On the other hand, the reinforcing bars 8 are inserted into the openings of the plate 4, and the reinforcing bars 8 are welded and fixed to the projections protruding into the openings of the plate 4.

Thereafter, by injecting mortar around the reinforcing bars 8, etc., the parallel lightweight cellular concrete panels 1 can be connected to each other to form the outer wall of the building.

In the above embodiment, the joint material 7 was fixed only to the upper end surface of the lightweight aerated concrete panel 1, but
It is also possible to configure the joint material 7 to be fixed to the lower end surface of the lightweight cellular concrete panel 1, or to both the upper and lower end surfaces (in this case, relatively thin joint material 7 is used).

In addition, when providing the recess 6 in the joint material 7 in the above embodiment, in order to protect the plate 4 inserted into the recess 6 from fire etc., a predetermined width, for example, is provided on the front or back side. The side edges with a width and thickness of 10 mm or more are erected.

<Effects of the invention> The lightweight aerated concrete panel according to the invention has the following effects:
Since it has the above-mentioned structure and function, it can be constructed by attaching the joint material to the end face of the concrete panel in advance in the factory, thereby making it possible to mass-produce products of uniform quality at low cost. .

When constructing the exterior walls of a building, workers no longer need to fill joints with joint material, as they had done in the past, significantly improving work efficiency and eliminating variations in quality caused by on-site construction. I can do it.

Furthermore, since no voids are generated at the joints where the plates are interposed, the fire prevention performance of the outer wall can be significantly improved, and the earthquake resistance can also be improved.

[Brief explanation of drawings]

FIG. 1 is a perspective explanatory view showing the configuration of a panel according to the present invention, FIG. 2 is a perspective view showing the usage state of the panel, and FIG. 3 is a perspective explanatory view showing a conventional example. 1 is a lightweight aerated concrete panel, 2 is a joint, 3 and 7 are joint materials, 4 is a plate, 6 is a recess,
8 is a reinforcing bar, and 9 is a notch.

Claims (1)

[Claims for Utility Model Registration] (1) A joint material is fixed to the upper end surface, the lower end surface, or both upper and lower end surfaces of the panel, and the outer surface of at least one end of the joint material is recessed toward the back side of the panel. A lightweight aerated concrete panel with joint material that is characterized by its structure. (2) The lightweight aerated concrete panel with a joint filler according to claim 1 of the utility model registration claim, characterized in that a notch is provided at the center of the panel thickness direction on the panel side end surface side of the recess.