JP3047783B2 - Reinforcement method of existing wooden building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reinforcing an existing wooden building, which can easily reinforce an existing wooden building such as an existing wooden house.

[0002]

BACKGROUND OF THE INVENTION The most effective way to reinforce an existing wooden building is to attach a strut to the frame of the wall portion. However, it is necessary to peel off the exterior and interior materials on the outer wall to expose the frame, install the bracing, and then reattach the exterior and interior materials. Was.

[0003] Further, even if a streak can be attached, it is a problem whether existing structural members such as pillars are deteriorated or not and can sufficiently cooperate with the streak.

[0004] The present invention has been made to solve the above problems, and has as its object to provide a method of reinforcing an existing wooden building which can easily reinforce the existing wooden building.

[0005]

According to the first aspect of the present invention, there is provided a method for reinforcing an existing wooden building.
The truss-like structure is located on the outer wall at the second floor level.
A horizontal stiffening member is attached .

According to a second aspect of the present invention, there is provided a method for reinforcing an existing wooden building according to the first aspect.
Three-dimensional wire mesh is stuck on the outer wall, and shot mortar is placed on top
Alternatively, shot concrete is sprayed .

According to a third aspect of the present invention, there is provided a method for reinforcing an existing wooden building according to the first or second aspect, wherein
Shot mortar or shot on the outer wall of a wooden building
It is constructed by spraying concrete onto a three-dimensional wire mesh.
Is attached and fixed .

According to a fourth aspect of the present invention, there is provided a method of reinforcing an existing wooden building according to the second or third aspects.
The body wire mesh is composed of two flat wire meshes installed in parallel and the two
Between the flat wire mesh connected to this flat wire mesh
And a lattice lattice of a book .

[0009]

1 to 7 show an existing wooden building renovated by a method of reinforcing an existing wooden building according to the present invention. In the drawings, reference numeral 1 denotes a column, a beam, a stud,
Frame of existing wooden building constructed with striations, 2
Is an existing exterior material that is attached to the outside of the frame 1 by nailing or the like and that forms an existing outer wall surface.

Reference numeral 3 denotes a three-dimensional wire mesh attached to an outer wall surface made of the exterior material 2 and fixed to a structural member such as a pillar by a fastener 4, and 5a and 5b are arranged vertically and horizontally in the three-dimensional wire mesh 3, Around openings 6, such as windows and doorways,
Vertical and horizontal reinforcing bars for reinforcing the protruding corners (corners) of the wall surface, etc., 7 are sprayed on the three-dimensional wire mesh 3 and shot mortar or shot concrete forming a new wall surface, and 8 is attached around the opening 6. Drainer members,
Reference numeral 9 denotes a caulking material filled around the opening 6. Both the draining member 8 and the caulking material 9 provide waterproofing around the opening 6 (at the time of the existing wall and the reinforcing wall).

Reference numeral 13 denotes a parallel string truss-like structure in which a plurality of diagonal members are stretched between two string members extending in parallel, for example. In order to enhance the reinforcing performance of the reinforcing wall constituted by the concrete 7, the horizontal stiffening member is provided on the outer wall surface of the existing wooden building at a floor level of the second floor and protruded horizontally. The chord and diagonal of the horizontal stiffening member 13 are H
It is formed from shaped steel such as shaped steel and angle iron.

The three-dimensional wire mesh 3 has two flat wire meshes 3a installed in parallel, and the two flat wire meshes 3a, 3a are connected to a plurality of lattice bars 3a.
By being connected by b, it is configured in a rectangular plate shape that can be handled by human power (see FIG. 4A). In addition, flat wire mesh 3a
And the lattice stitch 3b are integrally connected by welding.

As the fastener 4, for example, a screw bolt with a hook having a hook 4 a for hooking the three-dimensional wire mesh 3 and a male screw portion 4 b screwed into the shaft assembly 1 is used.

The shot mortar or shot concrete 7 is cast into a uniform thickness so that the three-dimensional wire mesh 3 and the vertical and horizontal reinforcing steel bars 5a and 5b are completely buried.
The drainer 8 is formed of a metal plate.

Next, a method of reinforcing an existing wooden building according to the present invention will be described step by step.

(1) First, a three-dimensional wire mesh 3 is attached to the exterior of the exterior material 2 of an existing wooden building over the entire surface thereof. In this case, when the exterior material 2 is mortar painted, tiled, or boarded, the three-dimensional wire netting 3 is directly attached on the exterior material 2 and is firmly attached to the structural member 1 such as a pillar by a plurality of hook bolts 4. Fixed to.

Further , as shown in FIG. 1, a horizontal stiffening member 13 is provided horizontally at the second floor level of an existing building . And
The horizontal stiffening member 13, the reinforcing effect of the reinforcing walls Ru can further <br/> enhanced Rukoto. Incidentally, the horizontal stiffening member 13, FIG.
As shown in FIG. 6, one of the string members is firmly fixed to a structural member 1 such as a beam on the second floor together with a three-dimensional wire mesh 3 by a hook bolt 4.

When the wall of the existing building is finished with a thin exterior material such as a sideboard, the exterior material 2
Is peeled off, and the three-dimensional wire netting 3 is mounted on the base material on which the exterior material 2 is mounted. In addition, three-dimensional wire mesh 3
Reinforcing flat wire meshes 10a and 10b (see Figs. 4 (b) and 4 (c)) are attached to the joints and the protruding corners (corner portions) of the wall surface, and the periphery of the openings 6 such as windows and doorways. Vertical and horizontal reinforcing bars 5a and 5b are provided as necessary at the protruding corners (corners) of the wall surface and the upper end of the three-dimensional wire netting 3 to reinforce each other. Is to be in close contact with the soil concrete 11 such as a dog running around the foundation 12 (Fig. 3 (b)) or embedded in the ground along with the foundation 12 (see Fig. 3 (a)). . A three-dimensional wire mesh 3 is attached to the entire back of the eave.

It is extremely convenient to use a three-dimensional wire net attached to the protruding corner (corner portion) of the wall surface portion if it is formed in an L-shape in advance. By cutting the flat wire mesh 3a on one side of the wire mesh 3 and bending the cut portion into an L-shape, it can be easily processed for a corner portion. Rather, it is preferable without being bulky when transporting the three-dimensional wire netting.

(2) Next, a shot mortar or shot concrete 7 is sprayed on the three-dimensional wire mesh 3 so as to completely fill the three-dimensional wire mesh 3 and has a uniform thickness.

A shot concrete wall (not shown) that can be transported by spraying shot mortar or shot concrete 7 onto the three-dimensional wire mesh 3 is formed in a rectangular plate shape, and this shot concrete wall is fastened to the wall of an existing building by a fastener. It may be attached by a fixing bracket such as.

[0022]

[Effect of the Invention] Retrofit for existing wooden building according to the invention comprises a configuration described above, and adhering a solid wire mesh on the outer wall surface of the existing wooden building, since blow Shottomo filter Le or shot concrete thereon In addition, it is possible to reinforce the existing wooden building very easily, remarkably enhance the seismic resistance and soundproofing of the existing wooden building, and further improve the sound insulation and the heat insulation.

A shot mortar or shot concrete 7 is sprayed onto the three-dimensional wire net to form a rectangular plate-like shot concrete wall which can be transported, and the shot concrete wall is fixed to a wall of an existing building by a fastener such as a fastener. If it is attached, there is an effect that the construction period can be shortened by labor saving of on-site construction.

[0024] Furthermore, the horizontal stiffening member is protruded horizontally on the second floor level of the existing building, so that the reinforcing effect of the reinforcing wall can be further enhanced.

Further, the three-dimensional wire mesh is constructed by including two flat wire meshes installed in parallel and a plurality of lattice bars connected between the flat wire meshes and attached to the flat wire mesh. It can be easily manufactured and mass-produced. .

[Brief description of the drawings]

FIG. 1 is a perspective view of an existing wooden building renovated by a method of reinforcing an existing wooden building according to the present invention.

FIG. 2 is a schematic plan view of the existing wooden building shown in FIG.

FIGS. 3A and 3B are cross-sectional views taken along line aa in FIG.

FIG. 4A is a perspective view of a three-dimensional wire mesh, and FIGS. 4B and 4C are perspective views of a reinforcing wire mesh.

FIG. 5 is a partial side view of the existing wooden building shown in FIG. 1;

FIG. 6 is a longitudinal sectional view in FIG.

FIG. 7A is a cross-sectional view of an opening of an existing wooden building, and FIG.
FIG. 3 is a sectional view taken along line bb in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... shaft set, 2 ... exterior material, 3 ... three-dimensional wire mesh, 4 ... fastener, 5a, 5b ... vertical and horizontal reinforcing steel, 6 ... opening, 7 ... shot mortar or shot concrete, 8 ... draining member, 9 ... caulking Materials, 10a, 10b ... flat wire mesh for reinforcement, 11 ...
Soil concrete, 12 ... foundation, 13 ... horizontal stiffening member.

Claims (4)

(57) [Claims] 1. The floor level of the second floor on the outer wall of an existing wooden building.
Take the horizontal stiffening member that is
A method of reinforcing existing wooden buildings, characterized by being attached. 2. A three-dimensional wire mesh attached to the outer wall of an existing wooden building
Shot mortar or shot concrete
2. The existing method according to claim 1, wherein the sheet is sprayed.
Reinforcement method of wooden building. 3. A shot mole on an outer wall of an existing wooden building.
Spraying tall or shot concrete onto 3D wire mesh
Shot concrete wall
3. The fixing device according to claim 1, wherein the mounting is fixed.
The existing wooden building reinforcement method described. 4. A three-dimensional wire mesh is composed of two flat wires installed in parallel.
Connect the wire mesh to the wire mesh between the two wire meshes and take
With multiple lattices attached to it
The existing tree according to claim 2 or 3, characterized in that:
Reinforcement method of built building.