JPH0830370B2 - Construction method of earthquake-resistant wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a method of constructing an earthquake-resistant wall suitable for a country like Japan, which has a high temperature and a large number of earthquakes, and also has an extremely high structural strength. It is about.

[Conventional technology]

Overseas, buildings have already been constructed in which mortar and concrete are sprayed onto a three-dimensional wire mesh panel having a heat insulating material as a core material to form walls and floors. The applicant has also filed some inventions relating to this type of building.

And as a conventional construction method, at the same time as the building frame,
Assembling the formwork and arranging work in this formwork,
It is constructed by casting concrete in this formwork. Alternatively, at the same time as the building frame, a method of building a precast wallboard in the building frame is used.

[Problems to be Solved by the Invention]

However, in the above-described conventional construction method, the former case involves many on-site operations such as assembling and arranging the formwork, which is problematic in terms of securing craftsmen, construction period, and cost. In the latter case, the cost will increase due to the procurement of precast wallboard and joint work.

This invention was created in view of the above-mentioned circumstances,
The purpose is to provide a method of constructing a seismic wall that is easy to construct and is advantageous in terms of construction period and cost.

[Means for solving the problem]

This invention relates to a method of constructing an earthquake-resistant wall suitable for a country with many earthquakes, such as Japan, which has extremely high structural strength.
Two wire mesh panels are installed in parallel at a certain interval with a core panel sandwiched in the center, and the wire mesh panel and the wire mesh panel are integrally connected by a plurality of lattice members to form a rectangular plate shape. Attaching the wire mesh panel of the three-dimensional wire mesh panel and the shear connector attached to the building frame and projecting from the frame surface, the end of the wire mesh panel is attached to the opening piece of the U-shaped connecting portion, and the head of the shear connector is placed in the U-shaped connecting portion. The object is achieved by constructing a wall by inserting and fixing and spraying concrete or mortar on both side surfaces of the wire mesh panel.

〔Example〕

Hereinafter, a construction method of the present invention will be described based on an illustrated embodiment. A seismic resistant wall 1 according to the present invention uses a three-dimensional wire mesh panel 2 as shown in FIGS. 1 to 3. This earthquake-resistant wall 1 is a case of a steel structure.

In this three-dimensional wire mesh panel 2, two wire mesh panels 3 or 3 having a lattice shape or a diamond shape are installed in parallel at regular intervals, and the two wire mesh panels 3 and 3 are made of iron wire or the like. The lattice member 4 is integrally connected to form a rectangular plate having a predetermined thickness.

A short plate-shaped heat insulating panel 5 made of urethane or the like is attached to the three-dimensional wire mesh panel 2 as a core material panel at a substantially central portion thereof.

When constructing the earthquake-resistant wall 1 having such a structure by the method of the present invention, the three-dimensional wire mesh panel 2 is installed in the frame surface of the building frame 6 after construction,
By connecting the three-dimensional wire mesh panel 2 and the shear connector 7 integrally provided on the building frame 6 with the U-shaped connecting tool 8, the three-dimensional wire mesh panel 2 is fixed in the frame surface of the building frame 6.

After that, the earthquake-resistant wall 1 is constructed by spraying concrete or mortar 9 on both side surfaces of the three-dimensional wire mesh panel 2.

Here, the spraying of concrete or mortar 9 on both side surfaces of the three-dimensional wire netting panel 2 is performed until the three-dimensional wire netting panel 2 is completely embedded in the concrete or mortar 9 to form a predetermined wall thickness. .

Further, the U-shaped connecting tool 8 here is formed as shown in FIG. 6, and is attached to the upper, lower, left and right ends of the three-dimensional wire mesh panel 2. Then, the U-shaped connector 8 is slid vertically and horizontally for alignment, and the shear connector 7 is wrapped and connected.

Further, the three-dimensional wire netting panel 2 is formed in a size capable of sufficiently clearing the shear connector 7 provided integrally with the building frame 6, and a flat net (not shown) is applied to the joint of each three-dimensional wire netting panel 2. To reinforce.

FIG. 5 shows a seismic wall 1 having a reinforced concrete structure, and FIG. 6 shows a seismic wall 1 having a reinforced concrete structure. Reinforcing bars 10 are arranged around the earthquake-resistant wall 1 (around the shear connector 7) in this case.

In addition, since concrete or mortar sprayed on the inside of the room forms a structure integrally with the three-dimensional wire netting panel 2, it must be carefully constructed, and if necessary, reinforcement bars ( (Not shown) are arranged in the vertical and horizontal directions, or two or three three-dimensional wire mesh panels 2 are installed to enhance the earthquake resistance.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

(1) Attaching a three-dimensional wire mesh panel in which the wire mesh panel is not integrated with the lattice material and the core material panel is arranged in the approximate center in the building frame,
Seismic walls can be easily constructed by simply spraying concrete or mortar from both sides of the wire mesh panel.

(2) When constructing the earthquake-resistant wall, it is possible to easily construct it without the need for time-consuming assembly of the formwork and bar arrangement work.

Therefore, it is not necessary to secure a dedicated craftsman and the construction period can be shortened. Therefore, the construction cost can be reduced.

(3) Since earthquake-resistant walls can be installed as part of the finishing work after the construction work, the construction period of the entire building can be shortened.

[Brief description of drawings]

FIG. 1 shows an earthquake-resistant wall constructed by the method of the present invention and is an enlarged sectional view taken along the line AA of FIG. 2, FIG. 2 is a front view showing the earthquake-resistant wall constructed by the method of the present invention, FIG. 3 is a sectional view taken along the line BB in FIG. 2, FIG. 4 is a front view showing a U-shaped connector, and FIGS. 5 and 6 are sectional views showing another mode of the earthquake-resistant wall. 1 ... Seismic wall, 2 ... 3D wire mesh panel, 3 ... Wire mesh panel, 4
… Lattice material, 5… Insulation panel, 6… Building frame, 7… Shear connector, 8… U-shaped connector, 9… Concrete or mortar, 10… Reinforcing bar.

Claims (1)

[Claims] 1. Two wire mesh panels are installed in parallel in a substantially central position with a core panel sandwiched therebetween, and the wire mesh panels and the wire mesh panels are integrally connected by a plurality of lattice members. Attach the wire mesh panel of the three-dimensional wire mesh panel configured in the shape of a rectangular plate and the shear connector that is attached to the building frame and protrudes from the frame surface to the end of the wire mesh panel to the opening piece of the U-shaped connecting part and attach the head of the shear connector. A seismic wall characterized by being constructed by inserting and fixing in a U-shaped connecting portion to fix the wire mesh panel to an inner surface of a frame in a building frame, and then spraying concrete or mortar onto both side surfaces of the wire mesh panel. How to build.