JPS61179955A - Precast concrete panel having tile support material, its production and wall surface utilizing said panel - 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] [Object of the Invention] L1 May 1 ± 1 The present invention relates to a precast concrete board (hereinafter referred to as a PC board) constituting the outer surface of a building such as a curtain wall. The present invention relates to a PC board having tiles, which corresponds to a so-called tiled PC board, a method for manufacturing the same, and a wall surface of a building using the same.

1. It is well known that PC boards with tiles attached to them are generally used to finish the exterior walls of buildings. Tiles are arranged in advance on a bed form, and concrete is poured from the back side.

Therefore, a concrete plate with a tile finish can be obtained at the same time as demolding. At a construction site, a wall surface can be finished with tiles simply by attaching a PC board with tiles on the surface to a building structure. This construction method has excellent adhesion strength of tiles, eliminates the need for tiling work at construction sites that requires skilled skills, and has the advantage of streamlining on-site processes and shortening the construction period.

Note that in this specification, tiles include not only plate-shaped bricks that are usually placed on the surface of walls, clay fired products such as ceramics, etc.
Refers to all thin plate-like objects made of other materials that are attached to walls, floors, etc.

As mentioned above, the tile pre-attached PC board method has excellent features, but on the other hand, since the tiles are firmly attached to the surface of the concrete board in a factory, the tiles may crack after removal from the mold. However, there is a disadvantage that when a part of a tile is chipped or damaged, the damaged tile cannot be easily replaced. It is relatively common for surrounding tiles to be damaged during demolding, transportation to the site, and during on-site work. It is extremely inconvenient to discard the entire PC board because of a single damaged tile. Since it is economical, it has usually been possible to get by by using a PC board with the damaged tile on an inconspicuous wall surface of a building.

The present invention aims to improve these drawbacks, and provides a PC board having a tile support material that allows tiles to be installed at a construction site and allows individual tiles to be replaced if necessary. The object of the present invention is to provide a manufacturing method and a wall surface of a building using the PC board.

[Structure of the Invention] (b) To hold the tiles, the present invention is characterized in that a support having an engaging portion on the surface for engaging and fixing tiles is formed on the surface of a concrete plate.

Still another invention is characterized in that supports made of metal or the like having engaging portions on the surface for engaging and fixing tiles are arranged at predetermined intervals in a bed form, and concrete is poured into these supports.

Still another invention is that the PC board having a support on its surface is attached to a building structure, but the installation position of the tile is shifted from the adjacent upper tile to the support engagement strip, so that the vertical joints of the tiles do not pass through. The feature is that the wall surface is attached across adjacent PC boards as shown in FIG.

Above 1. In the second invention, the tiles may be attached to the support before concrete is poured, or they may be attached after the concrete hardens and becomes a PC board, or even after the walls of the building at site 1 are constructed. Alternatively, tiles in other parts may be fixed in advance so that only the tiles around the PC board are installed on site.

By forming a support on the surface of the PC board to which tiles can be engaged as described above, if a tile attached to the support is damaged, the tile can be easily removed and a new tile can be installed. Also, as mentioned above, installing tiles at a construction site is not recommended.
11. There is no need to worry about revocation.

Length 11 Figure 1 is a cross-sectional view of the manufacturing process according to the manufacturing method of the present invention.
A platform 3 on which the supports 2 are placed is formed on the bed 1 of the form, and spacers 4 are formed to maintain the spacing between the supports 2. This is the state in which the support body 2 is placed. In this state, concrete is poured, and after the concrete is cured, tiles 5 are attached to the surface of the support 2 as shown in FIG. The platform 3 and the spacer 4 may be formed in advance on the bed if they are made of special molds, but usually they are molded from rubber, wood, metal, plastic, etc. and placed side by side on the bed.

Therefore, the normal process is to first clean the formwork, apply a release agent to its surface, assemble the formwork, install the platform 3 and spacers 4 on the bed at predetermined intervals, and then The concrete is fixed, reinforcing bars are placed, concrete is poured, and the concrete is cured before being demolded.

PCC60 having the thus obtained support 2 on the surface,
Install tiles 5 as shown in FIG. The support body 2 of the embodiment shown in FIG. 2 is made of an aluminum alloy profile, and its cross-sectional shape is such that it once protrudes slightly diagonally downward from the surface of the flat main body portion 10, and its tip is bent diagonally upward. A first engagement strip 11 , a second engagement strip 12 that rises slightly diagonally downward at a position downwardly away from the first engagement strip 11 and has its tip parallel to the main body portion 10 ;
0, the upper and lower ends of the main body part 10 are bent at almost right angles to the back side of the main body part 10, and the back face of the main body part 10 has three anchors formed with the ends opened like an umbrella. The tile 5 is held by the first engagement strip 11 and the second engagement strip 12, and the second engagement strip 12 and the upper end of the tile 5 attached below are held together. A retainer 15 made of a metal plate or the like and formed to have elasticity is inserted in between, and the tile 5 is fixed to the support 2 by its elastic force.In this embodiment, the metal strip shown in FIG. A retainer 15 with an arcuate center portion is used.Therefore,
The cross-sectional shape of the tile 5 is such that it can be engaged with the first engagement strip 11 and the second engagement strip 12 of the support body 2, and has a protrusion 16 at the upper end and a lower tier at the lower end. It has a shape having a hanging portion 17 that covers the protruding portion 16 of the tile. Further, the above-mentioned retainer 15 is provided at the tip of the second engaging portion 12.
It is desirable to form a protrusion 18 to prevent the holder from coming off.

To attach this tile 5 to the support 2, place the back side of the tile on the first and second engagement strips 11.12 of the support from above and lower it to engage with the tip of the protrusion 16 of the tile 4. It is only necessary to insert the retainer 15 between the upper second engagement strip 12 and the upper second engagement strip 12.

Therefore, anyone can easily install it since no skill is required. In addition, against the elastic force of the retainer 15,
It can also be easily removed by lifting it up to the position where each engagement part disengages.

As mentioned above, in this example, the PC board with the support 2 on the surface is manufactured in advance, and the tiles are later attached to the support 2, so the tiles are not damaged during demolding, and the factory If a part of the tile is damaged during installation, transportation, on-site work, etc., it can be removed and a new one installed in its place.

The tiles can also be attached to PC boards attached to the building structure at the construction site. Furthermore, tiles may be pre-installed in the center of the PC board at the factory, and installed only on the periphery at the construction site.In this embodiment, narrow individual tiles are used as the supports 2. Therefore, a spacer 4 was required to prevent leakage during concrete pouring, but in use, it is possible to omit the use of a spacer 4 by stacking vertically adjacent supports so that their upper and lower ends partially overlap. can. An example of this is shown in the support 20 shown in FIG.

The support 20 likewise has first and second engaging strips 21, 22, and has spacing strips 23 formed therein to keep the tiles 5 away from the surface of the support 20. Therefore, the second engagement strip 22 is formed with a storage section 24 for supporting the back surface of the tile 5 in the middle thereof. Further, in the support 20 of this embodiment, two sets of first and second engagement stripes and spacing maintenance strips are formed on one support so that the tiles are arranged in two rows, and the supports are arranged without any gaps. , in which a space is formed between the lower second engagement strip 25 and the mounting portion 26 and the main body portion 27 so that the upper end portion 28 of the support body can be inserted so as to partially overlap the second engagement strip 25. It is said that In addition, it is more preferable to insert the upper end part 28 into this space with the packing 29 interposed, since this will prevent concrete from leaking during concrete pouring, and will also prevent rainwater from seeping into the concrete after installation in a building. , having an anchor portion 30 is similar to that of FIG.

Other functions of the PC board of this embodiment are not particularly different from those of FIG.

What is shown in FIG. 5 is yet another embodiment.

The engagement strips 32 of the support body 31 of this embodiment are formed to simply rise diagonally in the upper and lower directions as shown in the figure, while the upper and lower engagement strips 32 are formed on the back surface of the tile 33. 32 into which can be inserted. To engage the tile 33 with the support 31, it is sufficient to insert the engagement strip 32 of the support from the end into the dovetail groove 34 of the tile and slide it. The ends are partially overlapped. In this embodiment, the tiles 33 can be attached to the support 31 in advance, and the supports to which the tiles are attached can be laid out on a bed and concrete can be poured. Since it can be slid as described above, damaged tiles can be removed by sliding them horizontally and replaced with new ones.

FIG. 6 is an example of a wall surface constructed by attaching a PC board having a support body 40 to a building structure and attaching tiles to its engagement strips at the construction site, and as shown in the figure, the upper and lower tiles 35 are attached. The dotted lines in Figure 0, which are made by shifting the positions of the tiles so that the vertical joints of the tiles are not continuous, give the entire wall a horseshoe pattern.The dotted lines are the corners of the four PC boards. PC boards are attached to a building structure so that the supports of each PC board are lined up horizontally in a straight line.If the tiles are attached in a horseshoe pattern as shown in the figure, the result will be as shown in Figures 7 and 8. Some of the tiles are attached so as to straddle the joints 37 and 38 between the PC boards 36 and 36. It is desirable to fill the joints 37 and 38 between the PC boards with packing 39.

[Effect of the invention] As mentioned above, the fs1 invention is a PC board that has a support on the surface that engages and fixes the tile, so if the tile should be damaged, the tile can be easily removed by removing the engagement. It can be replaced, and there is no need to use the product with damage. Therefore, there is no need to make the appearance of the building unsightly, and the entire wall surface can be made of tiles without damage.

In addition, in the second invention, the PC board is manufactured by pouring concrete on the support that engages and fixes the tiles, so it is possible to pour concrete and remove the mold without attaching the tiles. It is possible to prevent tiles from being damaged during the process.

Furthermore, in the third invention, the PC board with the support is attached to the building structure in advance and the tiles are attached afterwards. It can be made into a shifted state, that is, a wall surface with a horse track pattern. In the case of conventional tile-adjusted PC boards, placing the tiles in a staggered manner as described above requires some of the tiles around one to protrude, making it difficult to install the formwork, and also making it difficult to force the formwork. Even if the tiles were manufactured, there was a very high possibility that the parts protruding from the periphery of the tiles would be damaged, so it was not possible to actually create a wall surface with the above design.

Furthermore, in the PC board of the present invention and the wall surface made of tiles using the PC board, since the tiles do not come into contact with concrete, there is less possibility of efflorescence occurring, and the aesthetic appearance of the wall surface can be maintained.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the manufacturing method of the present invention during manufacturing, FIG. 2 is a cross-sectional view of a PC board according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a PC board according to another embodiment. Fig. 4 is a front view of the retainer, Fig. 5 is a sectional view of a PC board of another embodiment, Fig. 6 is a front view of a wall of one embodiment, Fig. 7 is a cross-sectional view thereof, and Fig. 8 is a vertical sectional view of FIG. 1: bed, 2: support, 3: stand, 4 varnish spacer-1
5: tile, 6: PC board, 10: main body, 11: first engagement strip, 12: second engagement strip, 20: support body.

Claims (3)

[Claims] (1) A precast concrete board characterized by having a support formed on its surface having engagement strips for engaging and fixing tiles. (2) Precasting, which is characterized in that supports made of metal and having engagement strips for engaging and fixing tiles on the surface are arranged at predetermined intervals on the bed formwork, and concrete is poured into these from the back side of the supports. Method of manufacturing concrete plates. (3) Attach a precast concrete plate having a support formed on its surface with engagement stripes for engaging and fixing the tiles to a building structure, and attach tiles to the adjacent upper layer on the engagement stripes and its attachment. A wall surface characterized by the fact that the vertical joints of the tiles are not continuous vertically but are installed across adjacent precast concrete plates by shifting their positions.