JPS63176554A - Panel for outer wall - 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 TECHNICAL FIELD OF THE INVENTION The present invention relates to exterior wall panels used for constructing exterior walls of buildings.

Technical background of the invention and its problems External walls of buildings include exposed concrete walls, mortar walls with a concrete base, and brick walls with a concrete base. However, since it is not easy to construct these exterior walls, recently, construction methods have been proposed in which the exterior walls are formed by assembling a plurality of panels.

Examples of such external wall panels include ALC panels (factory-produced lightweight concrete panels) and metal plate panels. These panels are indispensable in modern architecture, such as vertical carts on walls and curtain wall structures that allow space to be freely configured with almost no horizontal load.

However, few conventional exterior wall panels have a structure that also serves as heat insulation.

This is because insulating materials are generally difficult to bond firmly with other components, making it difficult to form them into an integral panel, and even if it is possible, there is a risk that the strength will be insufficient. This is because, when a connecting member is used to connect to another member and form a panel, the connecting member becomes a thermal bridge, which is not desirable in terms of safety such as fire prevention. For this reason, conventionally, in order to improve the heat insulation properties of walls in buildings, it has been necessary to install heat insulation panels in addition to external wall panels, making the installation work complicated.

OBJECTS OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an external wall panel with a heat insulating material that has sufficient strength and excellent fire resistance.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention embeds a mesh body inside a plate-shaped heat insulating material, and a surface plate part separate from the heat insulating material is provided on the front or back surface of the heat insulating material. It is essentially characterized in that the surface plate part and the heat insulating material are tightly connected by a connecting member whose one end is locked to the net-like body and the other end is locked to the face plate part. .

According to such an exterior wall panel according to the present invention, the surface plate portion and the heat insulating material are connected by a connecting member whose one end is locked to the net-like body in the heat insulating material and the other end is locked to the surface plate portion. Therefore, there is no risk that these will peel off easily, and the strength of the panel will not decrease.

In addition, one end of this connecting member is locked to the net-like body in the heat insulating material, and it does not extend through the front and back surfaces of the heat insulating material, so it is called a thermal bridge (a thermal bridge). This will not impair fire protection.

DETAILED DESCRIPTION OF THE INVENTION FIG. 1 is a sectional view of a main part of an exterior wall panel according to an embodiment of the invention, FIG. 2 is an enlarged sectional view of a main part of the same panel, and FIG. 3 is another embodiment of the invention. FIG. 2 is a cross-sectional view of a main part of the exterior wall panel according to the present invention.

The exterior wall panel 1 shown in FIG. 1.2 is used, for example, as the exterior wall of a building with a curtain wall structure, and is attached to a steel frame 3 with anchor bolts 2. The exterior wall panel 1 according to this embodiment has a plate-shaped heat insulating material 4, and a front surface material 5 and a back surface material 6, which are separate from the heat insulating material 4, are laid on the front and back surfaces thereof. be.

The surface material 5 is made of, for example, GRC"E rutal (mortar containing glass reinforced cement). The back material 6 may be made of mortar material as well, but may be made of other materials. The material 5 will be on the outside of the building, and the back material 6 will be on the inside of the building.

Inside the heat insulating material 4, lattice reinforcing bars 7 as a mesh body are embedded in the planar direction on the side adjacent to the surface material 5. The lattice reinforcing bars 7 may be wire lath, metal lath, or the like. The lattice reinforcing bars 7 may be embedded in the heat insulating material 4 by placing them in a mold in advance when forming the plate-shaped heat insulating material 4 by foam molding, etc. 1. It is sandwiched between the second heat insulating plates 8 and 9 and glued.

The lattice reinforcing bars 7 embedded in the heat insulating material 4 in this manner are engaged with one end of a front surface anchor 10 and a back surface anchor 11 as connecting members.

Moreover, these front surface anchors 10 and back surface anchors 11 are configured such that one ends thereof are engaged with each other at mutually different positions on the lattice reinforcing bars 7. This is to prevent these anchors 10, 11 from becoming thermal bridges. Note that the other ends of the front surface anchor 10 and the back surface anchor 11 are locked to the front surface material 5 and the back surface material 6, respectively. Adhesive is attached between the front material 5 and the heat insulating material 4 and between the back material 6 and the heat insulating material 4, but these are essentially the surface anchors 10 as connecting members and the back surface. It is fastened by an anchor 11.

When such an exterior wall panel 1 is actually manufactured, it is carried out as follows.

As shown in detail in FIG. 2, first, the backing material 6 and the second heat insulating board 9 are bonded together using an adhesive such as epoxy or resin mortar. Next, the back surface anchor 11 is inserted from the back surface material 6 side, one end thereof is locked to the back surface material 6, and the other end is made to protrude from the second heat insulating material.

Next, the lattice reinforcing bars 7 are laid on the side of the second heat insulating material 9 opposite to the back material 6 while applying an adhesive 15 such as resin mortar. At that time, the back anchor 1 protruding from the second heat insulating material 9
The other end of 1 is bent and secured to the lattice reinforcing bar 7. Further, one end of the surface anchor 10 is bent and locked to the lattice reinforcing bar 7.

Next, the first heat insulating plates 8 are attached so as to sandwich the lattice reinforcing bars 7. First, a resin mortar 16 is poured onto the surface of the first heat insulating board 8 so that the other end of the surface anchor 10 is locked to the surface material 5. Thereafter, by applying GRC mortar 17, the exterior wall panel 1 is completed.

In order to attach such an exterior wall panel 1 to the steel frame 3 shown in FIG. 1, the following procedure is performed.

If the mounting position of the anchor bolt 2 is known in advance, the panel may be manufactured by removing the surface material 5 and the first heat insulating board 8 at that position, but if not,
The surface material 5 and the first
The insulation material 8 is drilled to the depth of the lattice reinforcing bars 7. (Drill the hole with a drill or the like) Next, the anchor bolt 2 is attached, and then the repair material 18 made of the same material as the surface material 5 is poured and fixed.

The exterior wall panel according to this embodiment has the following effects.

Since the front surface material 5 and the back surface material 6 and the heat insulating material are tightly connected by the front surface anchor 10 and the back surface anchor 11 as connecting members, the strength such as bending strength is improved even though the outer wall panel has a heat insulating material. It becomes possible to create large panels.

Furthermore, each of the anchors 10 and 11 does not directly penetrate from the surface of the panel 1 to the surface of the panel 1, but through lattice reinforcing bars, and the anchor positions are also shifted, so these anchors 10 and 11 are not connected to the thermal bridge. Therefore, the fire resistance will not be compromised.

Further, as detailed in FIG. 2, in this embodiment, the lattice reinforcing bars 7 are sandwiched between the first and second heat insulating materials 8 and 90 with an adhesive 15 interposed therebetween. Even if water enters from the surface material 5 due to some inconvenience, the layer 15 can be waterproofed without allowing the water to pass through to the back surface.

Roughly speaking, when attaching such a panel 1 to a steel frame 3 etc., the head of the anchor bolt 2 is not directly engaged with the insulation material 4 via a washer etc., but is engaged via a washer and grid reinforcing bar 7. Insulating material 4, which is weak against compressive force, is used to
It becomes possible to disperse the tightening load applied to the lattice reinforcing bars 7, and it becomes possible to obtain a reliable fixing force.

Note that the present invention is not limited to the embodiments described above, and can be modified in various ways.

For example, as shown in FIG. 3, an exterior wall panel 20 in which only the surface material 5 is fastened to one side of the heat insulating material 4 may be fixed to the outside of the concrete wall 21 with hole-in anchor bolts 22. This embodiment also has the same effect as the above embodiment.

As described in detail, according to the present invention, a net-like body is embedded inside a plate-shaped heat insulating material, and a connecting member having one end connected to the net-like body is used to connect other members to the surface of this heat insulating material. Since the exterior wall panel was constructed by joining the two together, it was possible to obtain an exterior wall panel that had sufficient strength, was fireproof, and was easy to install, despite having an integral heat insulating material. It's now possible.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of an external wall panel according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a main part of the same panel, and FIG. 3 is an external wall panel according to another embodiment of the present invention. FIG. 1.20... External wall panel 4... Heat insulating material, 5... Surface material, 6... Back material, 7... Lattice reinforcement, 8... First heat insulating board, 9...
Second heat insulating board, 10...Surface anchor, 11...Surface anchor Patent applicant Kanebuchi Chemical Industry Co., Ltd. Agent Patent attorney Shunichi Meiki Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1) A net-like body is buried inside a plate-shaped heat insulating material, a surface plate section separate from the heat insulating material is laid on the front or back surface of the heat insulating material, and the surface plate section is and the heat insulating material are tightly connected by a connecting member having one end locked to the net-like body and the other end locked to the surface plate portion. 2) The exterior wall panel according to claim 1, wherein the net-like body is sandwiched between two plate-shaped heat insulating materials and bonded together. 3) The outer wall panel according to claim 1, wherein the net-like body is embedded when the heat insulating material is formed into a plate shape. 4) The exterior wall panel according to claim 1, wherein the surface plate portion is made of mortar.