JPH083231B2 - Precast curtain wall board - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a precast curtain wall board suitable as an outer wall material for buildings.

[0002]

2. Description of the Related Art Heretofore, it has been common to use a core material having reinforcing bars arranged on the front and back sides of a reinforcing beam or mesh, and the core material is embedded in concrete.

[0003]

By the way, since the above-mentioned conventional precast plate has large rigidity but lacks elasticity, when it is used as a wall material,
When the precast plate is bent by a strong wind such as a typhoon,
There is a problem that cracks occur due to lack of elasticity. Further, since a large number of reinforcing bars must be arranged, there is a problem that the weight is heavy and the construction work is difficult.

The present invention is intended to solve the above-mentioned problems, and an object thereof is to be lightweight and to have a high tensile force, and to be unlikely to be cracked by a strong wind when used as a wall material, and The purpose of the present invention is to provide a precast curtain wall plate that can reduce the amount of reinforcing bars to be embedded separately from the reinforcing beam and can reduce the weight.

[0005]

The precast curtain wall plate of the present invention is intended to achieve the above-mentioned object. The means is to assemble reinforcing bar beams such as three-dimensional truss beams in a grid shape and assemble them in the grid shape. A light filler such as air mortar is filled in the space portion of the rebar beam, and the rebar beam and the light filler are embedded with a resin mortar having a tensile force 3 to 4 times that of concrete.

[0006]

In the precast curtain wall plate constructed as described above, a reinforcing bar beam such as a three-dimensional truss beam is assembled in a lattice shape, the resin mortar is poured into the form frame, and the reinforcing bar beam is a space portion in the resin mortar. Buried leaving the recess. Next, a filling material such as air mortar is filled in the recess, and after this is solidified, resin mortar including the upper surface of the filling material is poured to form a plate-shaped precast curtain wall plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the precast curtain wall plate of the present invention will be described below with reference to the drawings. FIG. 1 shows a three-dimensional truss beam A, which is a type of reinforcing bar beam, in which a plurality of lattice-shaped reinforcements 2 formed in a substantially V-shape on two lower chord members 1 are alternately inclined and welded to each other. The upper chord member 3 is welded to the upper end. Then, the three-dimensional truss beam A is assembled in a lattice form as shown in the plan view of FIG. . In embedding the truss beam A in the resin mortar 4, the resin mortar 4 is not entirely poured into the lattice-shaped space, but is formed in the state of the recess 4a.

Next, the recess 4a is filled with air mortar 5 in which melamine resin is mixed in the mortar, and after this is solidified, the resin mortar 4 including the upper surface of the air mortar 5 is poured to form a sectional shape. It is formed in a plate shape as shown in FIGS. In addition, 6 is a rebar beam A
As the reinforcing bars arranged on the front and back sides, a smaller number and a smaller number than the conventional one are arranged. As another manufacturing method, the reinforcing bars A assembled in a grid pattern are arranged in a slightly floating state in the form, and are preliminarily solidified to a size that can be inserted into the grid pattern of the reinforcing bars A. The air mortar 5 may be arranged in a slightly floating state, and the resin mortar 4 may be poured into the curtain wall plate in a state in which the reinforcing bar beam A and the air mortar 5 are thus arranged. In addition to the air mortar 5 described above, a lightweight filler having a heat insulating effect, such as foamed resin, may be used.

Since the curtain wall plate constructed as described above is lightweight and rich in elasticity, when the curtain wall plate is used as an outer wall plate of a building, the plate itself is elastically exerted even in the face of a strong wind such as a typhoon. It does not bend and crack, and therefore has a longer service life than conventional precast concrete boards and is easier to handle.

[0010]

As described above, according to the present invention, a light-weight filler is embedded in a space formed by assembling a three-dimensional truss beam or the like in a lattice shape, and a light-filling material is embedded together with the reinforcing beam in a resin mortar to form a plate. Since the precast curtain wall plate is formed, this curtain wall plate is lightweight and elastic, so even if it bends due to strong wind during a typhoon, the concrete will not peel off and fall off, and Since the amount of another reinforcing bar can be reduced, it has the effect of being lightweight and inexpensive to manufacture.

[Brief description of drawings]

FIG. 1 is a perspective view of a truss beam.

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 3 is a perspective view of the same.

FIG. 4 is a sectional view of FIG.

[Explanation of symbols]

 A Reinforcing beam 4 Resin mortar 5 Air mortar 6 Reinforcing bar

Claims (1)

[Claims] 1. A reinforcing bar beam such as a three-dimensional truss beam is assembled in a lattice shape, and the space portion of the reinforcing bar beam assembled in the lattice shape is filled with a lightweight and heat-insulating lightweight filler such as air mortar. And the lightweight filler is 3 compared to concrete
A precast curtain wall plate, which is embedded with a resin mortar having a tensile strength of up to 4 times.