JPH0796809B2 - 3D wire-Meshushi truss composite wall - Google Patents

Description

TECHNICAL FIELD The present invention relates to a three-dimensional wire mesh truss composite wall mainly applied to a boundary wall in a high-rise apartment house or a partition wall that requires sound insulation.

[Prior art]

In the past, in structural planning of high-rise apartments, it was common to treat the boundary wall as an earthquake-resistant element and use RC cast-in-place or PC construction method, but with the recent rise in the building's super high-rise structure, It became necessary to make the boundary wall non-bearing and lightweight, and various boundary wall construction methods were developed. That is, in high-rise apartments, for the reasons such as the reduction of the weight of the upper skeleton, the simplification of the skeleton cycle process, the use of large formwork, etc., the frontal walls are being made lighter by construction after the skeleton process. ing.

As an example thereof, a boundary wall as shown in FIG. 2 is known. That is, in the boundary part between the upper floor 1 and the lower floor 2,
Two steel fiber reinforced concrete panels 5 and 5 with PB (plaster board) 3 adhered on one side are arranged side by side, and between these panels 5 and 5, sound absorption of glass wool, fire resistance, heat insulation Is filled with a good material 6 to form a boundary wall.

[Problems to be solved by the invention]

The boundary wall adopting the above-mentioned conventional concrete panel is heavy and has a difficulty in workability such as handling,
There is a problem that labor saving is difficult due to the robotization and the cost becomes expensive. Moreover, since it is PB-pasted, it has a problem that it lacks durability and reliability as a frontier wall.

MEANS TO SOLVE THE PROBLEM This invention solves the said problem, can be easily carried in to a spot, can be easily assembled by hand, and is a three-dimensional wire mesh which makes it possible to produce a frontal wall inexpensively in a short construction period. The purpose is to provide truss composite wall.

[Means for solving problems]

The three-dimensional wire mesh truss composite wall of the present invention includes a sound-absorbing material arranged on a boundary wall portion, a lightweight panel arranged and fixed so as to sandwich the sound-absorbing material, and a surface blown on the surface of the lightweight panel. In the composite wall composed of a lightweight mortar constructed by attachment, the lightweight panel is composed of a three-dimensional wire mesh truss and a light-weight mortar having a hardness different from that of the field sprayed lightweight mortar formed on one side of the three-dimensional wire mesh truss. It is characterized by that.

[Action]

As shown in FIG. 1, the three-dimensional wire mesh truss composite wall of the present invention has one light-weight panel 16 installed and fixed to a fixing channel 22 or the like installed on the upper floor 10, and then absorbs sound such as glass wool. A material 13 having good fire resistance and heat insulating properties is superposed, then the other lightweight panel 16 is fixed, and thereafter, a layer of the lightweight mortar 17 is formed by in-situ spraying to complete the frontier wall.

As a result, since the weight is small, it can be easily brought into the field and assembled manually without using a lifting crane, which makes it possible to produce a frontal wall at a low cost in a short period of time and also to use a robot. It becomes easier to deal with the above, and further labor saving is possible.

〔Example〕

 Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a vertical sectional view of a three-dimensional wire mesh truss composite wall of the present invention. In the figure, 10 is the upper floor, 11 is the lower floor, 12 is the front wall, 13 is glass wool, 14 is lightweight foam mortar, 15
Is a three-dimensional wire mesh truss, 16 is a lightweight panel, 17 is a lightweight mortar, 19 and 19 'are vertical wire rods, 20 and 20' are horizontal wire rods,
21 and 21 'are truss bars, 22 is a fixing channel, 23 is a fixing angle, and 25 is a tightening bolt.

A boundary wall 12 formed on the boundary between the upper floor 10 and the lower floor 11
Is a material 13 such as glass wool that has good sound absorption, fire resistance, and heat insulation, and lightweight foam mortar 14 and three-dimensional wire mesh truss that are installed facing each other on both sides of this glass wool 13.
It is composed of lightweight panels 16 and 16 formed from 15, and lightweight mortars 17 and 17 which are constructed by spraying on the surface of these lightweight panels 16 and 16.

The lightweight panel 16 is produced as a precast concrete board, and truss bars 21 and 21 'are welded between two layers of wire mesh made by welding vertical wire members 19 and 19' and horizontal wire members 20 and 20 'in a mesh shape. Then three-dimensional wire mesh truss 15
To form. As shown in the figure, the truss muscles 21 and 21 'are arranged so that they are inclined in opposite directions.
Are inserted alternately in the direction orthogonal to the longitudinal direction of the three-dimensional wire mesh truss 15 and the vertical wire members 19 and 19 'and each truss bar.
21 and 21 'are welded together. One side of the three-dimensional wire mesh truss 15 thus formed is embedded in a mold (not shown) having a predetermined depth to make a lightweight foam mortar.
It is formed by forming 14 layers, and then demolding after prescribed curing.

Then, while inserting the one lightweight panel 16 into the fixing channel 22 installed on the upper floor 10, set on the fixing angle 23 installed on the lower floor 11, after fixing with the tightening bolt 25, A material 13 with good sound absorption, fire resistance, and heat insulation, such as glass wool, is superposed, and then the other lightweight panel
16 is fixed to the fixing channel 22 and the fixing angle 23 by a similar method, and then a layer of the lightweight mortar 17 is formed by in-situ spraying to complete the frontal wall.

Sound insulation characteristics, fire resistance and
The results of the tests conducted to see the heat insulation characteristics are shown in FIGS.

The sound insulation test was carried out twice, and in each case, it passed the D-50 (the sound insulation performance standard for buildings, "class 1" of the "Architectural Institute of Japan") as shown in the test result of FIG.

Further, the fire resistance test was the result shown in FIG. 3, which was set on one side of the panel according to Japanese Industrial Standards (JIS),
Fire resistance test Heat was applied along the heating temperature curve at 1000 ℃ for 2 hours (curve F), and the opposite side of the panel was 80 even after 2 hours.
Only the temperature rise of ℃ (curve E), it was found that the performance as a frontier wall of a high-rise building is satisfied.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made. For example, as the material 13 with good sound absorption, fire resistance, and heat insulation,
Not limited to glass wool, rock wool, wood wool board, etc. may be used.

Further, in the above embodiment, the truss reinforcements 21 and 21 'of the three-dimensional wire mesh truss 15 are alternately arranged to be inclined in opposite directions, but different truss reinforcements 21 and 21' are arranged in the three-dimensional wire mesh truss 15. It may be integrally welded so as to be orthogonal to the vertical wires 19, 19 '.

〔The invention's effect〕

As described above in detail, according to the three-dimensional wire mesh truss composite wall of the present invention, the weight of the panel is reduced, so that the panel can be easily brought into the field and assembled manually without using a lifting crane. Because you can
In addition to being able to produce a boundary wall at a low cost in a short construction period,
This makes it easier to adapt to robots and saves labor.

In addition, because it is sprayed on site, there are no joint joints and the surface is smooth and can be finished continuously. Furthermore, since the two panels are not connected by a reinforcing bar or a steel frame, there is no sound propagation, and the sound insulation is greatly improved.

Also, since the surface finish of the boundary wall is a cement-based finish,
The durability and reliability can be improved.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a three-dimensional wire mesh truss composite wall of the present invention, and FIGS. 2 and 3 are sound insulation and heat resistance, respectively.
FIG. 4 is a diagram for explaining the heat insulation test results, and FIG. 4 is a vertical cross-sectional view of a conventional boundary wall. 10 ... Upper floor, 11 ... Lower floor, 12 ... Boundary wall, 13 ... Glass wool, 14 ... Light weight foam mortar, 15 ... Three-dimensional wire mesh truss, 16 ... Light weight panel, 17 ... Light weight mortar, 19, 19 '
... vertical wire, 20, 20 '... horizontal wire, 21, 21' ... truss,
22… Fixing channel, 23… Fixing angle, 25… Tightening bolt.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazutaka Okawara 2-16-1, Kyobashi, Chuo-ku, Tokyo Within Shimizu Construction Co., Ltd. (72) Inventor Koichi Nakamura 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor, Akio Tanaka 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Teruo Orikasa 2--16-1, Kyobashi, Chuo-ku, Tokyo Within Shimizu Construction Co., Ltd. (56) Reference JP 61-113942 (JP, A) JP 58-191842 (JP, A) JP 60-164539 (JP, A) Actual 55-174412 (JP, U) Actual Open Sho 60-1410 (JP, U) Actual Open Sho 56-70014 (JP, U)

Claims (4)

[Claims] 1. A sound absorbing material disposed on a boundary wall portion, a light weight panel disposed and fixed so as to sandwich the sound absorbing material, and a light weight constructed by spraying on the surface of the light weight panel. In the composite wall made of mortar, the light weight panel is composed of a three-dimensional wire mesh truss, a field sprayed light mortar formed on one side of the three-dimensional wire mesh truss, and a light mortar having a different hardness. Wire mesh truss composite wall. 2. A lightweight mortar having different hardnesses as described above
The three-dimensional wire mesh truss composite wall according to claim 1, wherein the three-dimensional wire mesh truss composite wall is made of one of rock wool, lightweight foamed mortar, and chaffed cement. 3. The three-dimensional wire mesh truss is characterized in that two layers of wire mesh are alternately three-dimensionalized by truss lines whose inclination directions are opposite to each other. Three-dimensional wire mesh truss composite wall. 4. The three-dimensional wire mesh truss composite wall according to any one of claims 1 to 3, wherein the lightweight mortar is formed on one side of the three-dimensional wire mesh truss.