JPH07259215A - Wall body structure for concrete block building - Google Patents

Abstract

PURPOSE:To increase the heat insulating property at joint clearances by making the outer wall part of a concrete block into double construction and also charging the clearance between an outer shell plate and a rear plate with a heat insulating material. CONSTITUTION:In an outside wall part 9 adjacent to blocks 7 stacked in vertical direction, outer shell plates 11 are arranged so that they are brought in contact with each other to form an outer joint part 18 between them. Also a long bar heat insulating material 19a is inserted inside the outer joint part 18 between a recessed part 16 provided at the top of a lower side block 7 and a recessed part 16 provided at the bottom of an upper block 7 and between the outside wall parts 9 and 12. Then joint mortar 21 is filled from the inside of rear plates 12 to connect the rear plates 12 to each other, and joint mortar 22 is filled between outside wall parts 8. Thus the generation of dew condensation can be reduced remarkably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure of a concrete block structure building constructed by laying concrete blocks.

[0002]

2. Description of the Related Art A typical wall structure using conventional blocks is illustrated in FIG. That is, the outer wall portion (2) and the inner wall portion (3) of the block (1) juxtaposed with each other are arranged in the vertical direction, and the joint mortars (4) (4) ... Are stacked as a binding material. And in the case of a formwork concrete block, the outer wall part (2) and the inner wall part are further added.
A concrete wall is constructed by pouring concrete between (3).

In this type of formwork concrete block construction, there is also one in which the outer wall portion is doubled inside and outside to form a heat insulating space (see Japanese Utility Model Laid-Open No. 54-112316).

[0004]

In the above conventional concrete block construction, the structure in which concrete is simply placed in the block has a drawback that the heat insulating performance is not sufficient and dew condensation easily occurs. The above-mentioned publication improves the heat insulation performance by providing a space on the outside, but simply providing a space does not necessarily have sufficient heat insulation property. In particular, the joint gap portion between blocks is a joint mortar or the like. It ’s just blocked,
If a crack or the like occurs in the joint mortar portion, there is a drawback that the heat insulating property is extremely lowered.

The present invention has been made for the purpose of solving the above-mentioned conventional drawbacks, and in particular, to provide a wall structure of a concrete block structure building in which the heat insulating property of the joint gap portion is improved. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a wall structure in which a block having an inner wall portion, an outer wall portion, and a connecting portion for connecting the both is built. In the above, the outer wall portion is composed of an outer shell plate and an inner back plate that are connected to each other with a gap by a connecting piece, and straddles the gap of both outer wall portions adjacent to each other. It is characterized by being filled with a heat insulating material.

Further, the invention of claim 2 of this application is characterized in that, in the above, the heat insulating material is formed into a long bar shape in the joint gap direction.

[0008]

As described above, in the joint gap portion, since the heat insulating material is filled over the gaps of the outer wall portions of the adjacent blocks, the heat insulating performance is much improved as compared with the conventional one. .

[0009]

(Embodiment) In FIG. 2, (7) shows a block used in the first embodiment. The block (7) includes inner wall portions (8) and outer wall portions (9) arranged side by side, and connecting portions (10) (1) for connecting the inner and outer wall portions (8) (9).
0) is basically composed. One inner wall portion (8) is formed of a substantially flat plate. The other outer wall portion (9) has a double structure of an outer shell plate (11) and an inner back plate (12).
1) and connecting pieces (13) (13) oriented vertically are provided near both ends of the back plate (12).
The outer shell plate (11) and the back plate (12) are integrally connected by a (13) with a space (22) therebetween. Further, recesses (14) and (14) are formed on the left and right side wall portions of the outer wall portion (9), respectively, outside the connecting pieces (13) and (13). The hollow portion formed between the connecting pieces (13) (13) is filled with a heat insulating material (15), and the heat insulating material (15) and the connecting pieces (13) (13) are placed above and below, respectively. Also has similar recesses (16) (16). In this way, the outer wall portion (9) of the block (7) is formed with the recesses (14) (16) ... Enclosing the outer periphery thereof. Further, a ventilation groove (17) extending in the vertical direction is provided between the outer shell plate (11) and the heat insulating material (15).
The outer surface of the outer shell plate (11) is waterproofed in advance.

Next, the above blocks (7) and (7)
The wall structure in which the ... Is stacked will be described.

As shown in FIG. 1, in blocks (7), (7), ... Which are vertically stacked, adjacent outer wall portions (9), (9) have outer shell plates (11), (11). ) Are arranged so as to contact each other, and a narrow outer joint portion (18) is formed between them. Inside the outer joint portion (18), a recess (1) provided on the upper side of the lower block (7) is provided.
6) and the recess (1) provided on the lower side of the upper block (7).
6), a bar-shaped heat insulating material (19a) that is formed in a U-shaped cross section and is long in the direction of the joint gap is provided on both outer wall portions (1).
2) It is inserted so as to straddle the voids (22) (22) of the (12). The heat insulating material (19a) is arranged such that the web portion contacts the back plate (12) of each outer wall portion (9), and an enlarged space portion (20a) is formed between the upper and lower lip portions. Has been done. The enlarged space portion (20a) communicates with the outer joint portion (18) and is wider than the narrow portion of the outer joint portion (18). That is, on the rear side of the expanded space portion (20a), the heat insulating material (19
It will be blocked by a).

The joint mortar (21) is filled from the inside of the back plates (12) and (12) by using the heat insulating material (19a) as heat insulation, and the back plates (12) and (12) are joined together. ing. By doing so, the joint mortar (19) filled between the back plates (12) (12) becomes the outer shell plate (11).
The lateral joint portion of the outer joint portion (18) formed between the outer shell plates (11) and (11) does not flow to the side of (11), and is therefore a so-called sleep joint.

On the other hand, blocks (7) arranged in the horizontal direction
As shown in FIG. 3, the heat insulating material (19a) is interposed between the outer wall portions (9) and (9) between (7), ... The joints are also sleeping joints.

Further, in the enlarged space portion (20a) formed inside the outer joint portion (18) by the heat insulating material (19a),
It is difficult for rainwater to enter through the outer joint (18). Moreover, the expanded space (20a) also functions as a ventilation / drainage channel, and even if rainwater or the like enters, it will be discharged early.
Almost no internal condensation occurs.

On the other hand, the joint mortar (22) filled between the inner wall portions (8) and (8) has the inner wall portions (8) and (8).
The joint is pressed from the outside in the same manner as the conventional method.

Reference numeral (23) represents grout concrete filled between the back plate (12) of the outer wall portion (9) and the inner wall portion (8).

FIGS. 4 and 5 show a second embodiment of the present invention. In the second embodiment, the heat insulating material (19b) is formed in a rectangular cross section, and the back plate (1) of the outer wall portions (9) (9) is formed.
2) It is inserted between both outer wall parts (9) and (9) so as to contact with (12). Also in this case, the outside of the heat insulating material (19b) communicates with the outer joint portion (18) in the expanded space portion (20b).
Has become.

[0018]

As described above, according to the present invention, the outer wall portion of the concrete block has a double structure, and the outer wall portion of the block adjacent to the outer wall portion of the outer wall portion of the concrete block and the back wall of the concrete block is straddled. Since it is filled with a heat insulating material, the effect of improving the heat insulating property particularly in the joint gap portion and significantly reducing the occurrence of dew condensation can be obtained.

Further, in the invention of claim 2 of this application, since the rod-shaped heat insulating material is inserted and filled, the heat insulating material can be filled by simply inserting it into the void portion, and the construction is easy. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a wall structure according to a first embodiment of the present invention.

FIG. 2 is likewise an exploded perspective view of a block and a heat insulating material.

FIG. 3 is a transverse cross-sectional view of the same wall structure.

FIG. 4 is a vertical sectional view of a wall structure according to a second embodiment.

FIG. 5 is a transverse cross-sectional view of the same wall structure.

FIG. 6 is a vertical cross-sectional view showing a conventional wall structure.

[Explanation of symbols]

 (7) Block (8) Inner wall part (9) Outer wall part (10) Connecting part (11) Outer shell plate (12) Back plate (13) Connecting piece (18) Outer joint part (19a) Insulating material (19b) ) Insulation (22) Void

Claims (2)

[Claims] 1. A wall structure in which a block having an inner wall portion, an outer wall portion, and a connecting portion for connecting the inner wall portion and the outer wall portion is mounted, the outer wall portion being connected by a connecting piece with a gap. A block building, which is composed of an outer shell plate and an inner back plate, and is filled with a heat insulating material so as to straddle the voids of both outer wall portions adjacent to each other. Wall structure. 2. The wall structure for a concrete block building according to claim 1, wherein the heat insulating material has a rod shape that is long in the joint gap direction.