JP2001003499A - Outer wall structure of pc surface board and concrete structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a construction cost and provide a high thermal insulating effect. SOLUTION: Concrete is deposited in a space A formed of a PC surface board 1 and a mold 10 so as to construct an outer wall 2. By this, a thermal insulating material 5 of the PC surface board 1 comes in the state of being touched with the outer surface of the outer wall 2, and fixing reinforcements 6 of the PC surface board 1 are buried in the outer wall 2 so as to form the outer wall 2 integrally with the PC surface board 1. Thus, because the thermal insulating material 5 need not be installed on the outer wall 2, and the mold 10 can be disassembled by merely removing the inside mold 10, labor can be saved and work period can be shortened. In addition, because an external thermal insulation system is realized, a thermal insulation efficiency can be increased, and higher thermal insulation effect, can be provided. As a result, a power cost for indoor air-conditioning can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a PCF (PRE-CAST
The present invention relates to a PCF plate (hereinafter, referred to as a PC surface plate) used for the exterior of a concrete structure when the CONCRETE FORM method is performed, and an outer wall structure of the concrete structure using the PC surface plate.

[0002]

2. Description of the Related Art In order to reduce the power cost of indoor air conditioning, conventionally, a heat insulating material has been attached to the inner surface of an outer wall of a concrete structure.

[0003]

However, in the above-mentioned conventional means, after constructing the concrete outer wall, a heat insulating material must be stuck on the inner surface thereof, which takes time and labor for the construction, and is also important. There is a problem that the heat insulation effect is low and the cost of air conditioning is not as low as expected.

[0004] It is an object of the present invention to provide a PC surface slab and an outer wall structure of a concrete structure which can obtain a high heat insulating effect and are easy to construct. Another object of the present invention is to provide a PC capable of reducing the power cost of air conditioning.
It is to provide a surface slab and an outer wall structure of a concrete structure.

[0005]

In order to achieve at least one of the above objects, according to the first aspect of the present invention, a heat insulating material is attached to one surface of a panel, and is fixed through the heat insulating material. The structure was provided with streaks.

In this means, generally, a PC surface slab is used as a formwork, and concrete is poured into a defined space of the PC surface slab to construct an outer wall. The heat insulating material of the PC surface plate is in contact with the outer surface of the outer wall and blocks heat. The fixing streaks of the PC surface slab are embedded in the outer wall to fix the PC surface slab integrally to the outer wall.

[0007] In the PC surface plate according to the first aspect, the fixing streaks can be truss streaks (Claim 2). In this configuration, the truss bars having a complicated structure fix the PC surface slab to the outer wall more firmly.

According to a third aspect of the present invention, the PC surface slab according to the first or second aspect is configured such that a fixing streak is embedded in the outer wall in a state in which a heat insulating material is in contact with the outer surface of the outer wall, and is integrally fixed to the outer wall. did.

In this means, the heat insulating material of the PC surface slab is outside the outer wall to block heat.

[0010] In the outer wall structure of the concrete structure according to the third aspect, a part of the anchoring streaks of the PC surface slab can be connected to one or both of the beam and the column in the outer wall. Item 5). In this configuration, the fixing strength of the PC surface slab to the outer wall is increased by the fitting.

[0011] In the outer wall structure of a concrete structure according to any one of claims 3 to 5, a PC surface slab is used as a formwork, and the outer wall is formed by casting concrete in a partition space of the PC surface slab. It is preferable to construct (claim 6). In this configuration, the PC surface slab serving as the mold is left as it is on the concrete structure as the exterior slab. Therefore, the work of disassembling the mold is facilitated because the PC surface slab does not need to be removed. In addition, the fixing streaks of the PC surface slab can be reliably embedded in the outer wall of the post-punch, and the labor of manually attaching the heat insulating material after the outer wall is constructed can be omitted.

[0012]

Embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 show a first embodiment of the present invention. In these figures, reference numeral 1 denotes a PC front plate, 2
Is the outer wall of the concrete structure.

The PC surface slab 1 has a required heat insulating material 5 attached to one surface of a concrete panel 4 in which a reinforcing bar 4a is placed, and a fixing line 6 penetrating through the heat insulating material 5 is provided. 7 is applied.

The attachment of the heat insulating material 5 to the concrete panel 4 is performed by means such as spraying, driving into a mold at the time of forming the panel, or sticking. The molding of the concrete panel 4, the attachment of the heat insulating material 5 to the panel 4, and the construction of the exterior 7 are generally performed in a factory. Exterior 7
The shape and type of are arbitrary.

The outer wall 2 is constructed by casting concrete in a space A defined by the PC surface slab 1 and the formwork 10. Reference numeral 11 denotes a separator, one end of which is screwed into the screw hole 12a of the attachment fitting 12 and the other end of which is screwed to the nut member 13 of the mold 10 to keep the distance between the PC surface slab 1 and the mold 10 constant. To be kept.

The attachment fitting 12 has a groove-shaped attachment portion 12b in addition to the screw hole 12a, and the bent portion 6a of the fixing streak 6 is fitted into the attachment portion 12b from the side to engage the fixing streak 6. Being able to wear. In addition, the bent portion 6 of the fixing line 6
Although a may be formed on site, it is usually formed at a production factory of the PC surface slab 1.

Next, the construction method of the outer wall 2 will be described. First, the PC surface slab 1 is used as an outer mold, and this and the inner mold 10 are connected to the fastening fitting 12 and the separator 11.
The concrete placement space A is fixed by fixing at predetermined intervals. The reinforcing bar (not shown) is usually assembled before the division of the space A. Next, concrete is poured into the space A partitioned above to construct the outer wall 2. After curing and solidification of the concrete, only the formwork 10 is removed while leaving the PC surface slab 1 as it is, and the construction of the outer wall 2 is completed.

As a result, the heat insulating material 5 of the PC surface slab 1 comes into contact with the outer surface of the outer wall 2, and the fixing streaks 6 of the PC surface slab 1 are embedded in the outer wall 2, and the outer wall 2 and the PC surface slab 1
And one.

Therefore, unlike the conventional construction method in which a heat insulating material is applied after the construction of the outer wall, there is no need to attach the heat insulating material 5 to the outer wall 2 and the mold is disassembled only by removing the inner mold 10. Therefore, labor is saved and the construction period is shortened.

Further, since the heat insulating material 5 exists on the outer surface side of the outer wall 2 and is of an external heat insulating type, the heat insulating material 5 has a higher heat insulating efficiency than the conventional internal heat insulating method in which the heat insulating material is adhered to the inner surface of the outer wall. High heat insulation effect can be obtained. For this reason, the power cost of indoor air conditioning can be reduced. The separator 11 left inside the outer wall 2 functions to integrate the outer wall 2 and the PC surface slab 1.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the truss bars 4b of the concrete panel 4 of the PC surface slab 1 are used as anchor bars,
The C surface slab 1 is connected to the beam 16
, And its own weight is supported by a beam 16 by a support bracket 17.

The coupling member 15 includes a nut member 15a attached to the truss bar 4b and a nut member 1 attached to a fixing member 16a made of an angle material fixed to the beam 16.
5b and a connecting bolt 15c screwed to both nut members 15a, 15b. The distance between the beam 16 and the PC surface plate 1 can be adjusted by operating the connecting bolt 15c and the nut member 15b. I have.

The support member 17 includes a nut plate 17a attached to the truss bar 4b and a receiving seat 16b of the beam 16.
And a support bolt 17b screwed to a nut plate 17a so as to be rotatable, and the height of the PC surface slab 1 with respect to the beam 16 can be adjusted by operating the support bolt 17b. .

The heat insulating material of the PC surface slab 1 includes a driving heat insulating material 5a that is driven into the concrete panel 4 when the concrete panel 4 is formed by the mold, and a spray heat insulating material that is blown onto the panel 4 after the panel 4 is formed. 5b and an adhesive heat insulating material 5c attached to the panel 4.

As shown in FIG. 4, the joining fitting 15 is
6 may be provided below. Reference numeral 2a denotes a reinforcing bar of the outer wall 2, 19 denotes a floor, and 20 denotes a window.

As in the case of FIG. 1, the outer wall 2 uses the PC surface slab 1 as the outer mold, and the outer mold 2 and the inner mold 10 are used.
(Omitted in FIG. 3; see FIG. 1) to divide the space A and cast concrete into the space A for construction. Therefore, the same effect as the outer wall structure of FIG. 1 is obtained, and the outer wall 2 of the PC surface slab 1 is connected to the beam 16 by the connecting metal 15 and supported by the supporting metal 17.
And the stability is improved.

FIG. 5 shows a third embodiment of the present invention.
In this embodiment, the beam 16 in FIG. That is, the truss bar 4b of the PC surface slab 1
Are used for anchoring streaks, and the PC surface slab 1 is fixed to the columns 22 in the outer wall 2 with the coupling fittings 15 and the weight of the columns 22 is supported by the support fittings 17.

Other constructions are the same as those shown in FIGS. 1 and 3 including the construction method of the outer wall 2, and therefore, the same members and the like are denoted by the same reference numerals and description thereof is omitted.

In the outer wall structure shown in FIG. 5, FIGS.
The same effect can be expected.

[0030]

As described above, according to the first aspect of the present invention, a high heat insulating effect can be obtained by implementing an external heat insulating system having good heat insulating efficiency, and the construction is easy and the cost is low. A PC surface version can be provided.

In the PC surface slab according to the first aspect, when the fixing streaks are truss streaks, the fixing strength of the PC surface slab to the outer wall is enhanced.

According to the third aspect of the present invention, the heat insulation by the heat insulating material is of the external heat insulation type, so that a high heat insulation effect can be obtained, and the cost of indoor air conditioning can be reduced.

In the outer wall structure of a concrete structure according to the third aspect, when a part of the anchoring streaks of the PC surface slab is connected to one or both of the beam and the column in the outer wall, the outer wall and the PC surface slab are combined. This has the effect of increasing the bonding strength.

[0034] In the outer wall structure of a concrete structure according to any one of claims 3 to 5, the PC surface slab is used as a formwork, and the outer wall is formed by casting concrete in the partition space of the PC surface slab. With the construction, it is only necessary to disassemble the inner mold used for the construction of the outer wall, and it is not necessary to attach any heat insulating material after the construction of the outer wall, so that the construction cost can be reduced. . Also, PC
The fixing streaks of the surface slab can be reliably embedded in the outer wall, and there is an effect that the integration of the outer wall and the PC surface slab is more complete.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a front view of a fitting.

FIG. 3 is a sectional view showing a second embodiment of the present invention.

FIG. 4 is a sectional view showing a modification of the outer wall structure of FIG. 3;

FIG. 5 is a sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 PC surface plate 2 Exterior wall 4 Concrete panel 4b Truss bar (fixing bar) 5 Heat insulating material 5a Driving heat insulating material 5b Spraying heat insulating material 5c Sticking heat insulating material 6 Fixing bar 15 Joining fitting 16 Beam 17 Supporting fitting 22 Column A space

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) E04C 2/46 G (72) Inventor Tsutomu Hagiwara 1-1-12 Yurakucho, Chiyoda-ku, Tokyo Ishi Kawashima Construction Materials Industry F term in the company (reference) 2E162 AA01 CA11 CE00

Claims (6)

[Claims] 1. A PC surface slab wherein a heat insulating material is attached to one surface of a panel, and a fixing streak is provided through the heat insulating material. 2. The PC surface slab according to claim 1, wherein the anchoring muscle is a truss muscle. 3. The concrete according to claim 1, wherein the PC surface slab is fixed to the outer wall by embedding anchoring streaks in the outer wall in a state where the heat insulating material is in contact with the outer surface of the outer wall. Exterior wall structure of the structure. 4. The outer wall structure of a concrete structure according to claim 3, wherein a part of the fixing streaks of the PC surface slab is connected to a beam in the outer wall by a connecting fitting. 5. The outer wall structure of a concrete structure according to claim 3, wherein a part of the fixing streaks of the PC surface slab is connected to a pillar in the outer wall by a connecting fitting. 6. The PC surface slab is used as a formwork, and the outer wall is constructed by casting concrete in a defined space of the PC surface slab. Exterior wall structure of the concrete structure as described.