JP3031168U - Reinforcement equipment for wooden buildings - Google Patents

Abstract

(57) [Abstract] [Problem] To strengthen the seismic resistance of traditional wooden framed wooden structures. SOLUTION: A contact surface 51A-B with a structural material has an L-shaped cross section having two directions of a pillar side and a base side, and a part of each contact surface 51A-B with a structural material is a bent portion having a convex shape. 54 and 55 make it float from the surface of the structural material to be contacted, and of these, the contact surface (51C) with the foundation is hung in the orthogonal direction from the convex bent portion 55 of the contact surface 51B on the base side. Nail holes are provided on each contact surface.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 This invention relates to a reinforcing device for strengthening the seismic resistance of a wooden building, particularly a conventional wooden building.

[0002]

[Prior art]

 Although conventional wooden construction has a high degree of freedom in design and has the advantage that the opening can be taken freely, it has been pointed out that it is inferior in seismic resistance to prefabricated construction and two-by-four construction. Of course, there is no technical basis for this theory, and there is no such thing for a framed wooden building that is structurally calculated and appropriately designed. However, some of the existing wooden frame structures are certainly inferior in seismic resistance, and during the Great Hanshin Earthquake in January 1995, a large number of wooden frame structures collapsed and The issue of strengthening the earthquake resistance of wooden buildings was highlighted.

Conventionally, the following two techniques have been widely known as techniques for strengthening the seismic resistance of a framed wooden building. One of them is a technology that strengthens the seismic resistance by increasing the bonding force between structural materials such as columns, beams, and foundations.For example, using a battledore bolt to strengthen the connection between columns and beams, or by using a strip of metal And the base was firmly connected.

The other two are technologies for strengthening seismic resistance by strengthening a wall structure formed by joining structural materials to each other. For example, diagonal bracing or structural plywood is used. Was stretched out.

[0005]

[Problems to be solved by the device]

 Of the above, the former technology is easy to implement, but since it only strengthens the bond between the two structural materials, it has the effect of preventing accidental pulling out of the structural materials, but the structural materials are It does not have the effect of comprehensively strengthening the strength of the wall structure constructed by the connection of the above, and on the contrary, only the strength of a specific part is unevenly strengthened. occured.

On the other hand, the latter technique is excellent in that it strengthens the strength of the wall structure comprehensively, but even if it is a new construction, it is necessary to remove and re-execute the wall material to implement it in the existing building. There was a problem that it was necessary and required large-scale construction.

[0007] Furthermore, all of the techniques have only considered to increase the strength of the building itself, and have not considered at all to reduce the shaking of the building itself.

[0008]

[Means for Solving the Problems]

 In view of the above problems of the prior art, the present invention was created with the object of providing a reinforcing device that can be easily applied to an existing building. That is, in the reinforcing device of the present invention, the contact surface with the structural material has an L-shaped cross section in two directions, the pillar side and the base side, and a part of each contact surface with the structural material is a convex bent portion. By making it so that it floats from the surface of the structural material to be in contact with, and the contact surface with the foundation is further hung in the orthogonal direction from the convex bent part (55) of the contact surface on the base side. , Each contact surface is provided with a nail hole.

[0009]

[Embodiment of device]

 Specific embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 are views showing a first embodiment of the present invention. The reinforcing member 50 is made of a metal plate having an L-shaped cross section having a contact surface with a structural member in two directions, and a contact surface with the foundation hanging in an orthogonal direction from one of the contact surfaces. The surface is provided with nail holes. In the figure, reference numerals 51A and 51B indicate contact surfaces with the structural members arranged in two directions, and 51C similarly indicates contact surfaces with the foundation provided continuously from the contact surface 51B. In the figure, reference numeral 52 denotes a nail hole provided on the contact surfaces 51A and 51B with the structural material, and 53 denotes a nail hole provided on the contact surface 51C with the base. In this embodiment, a reinforcing wall 56 is provided at the joint between the contact surfaces 51A and 51B in order to prevent them from being bent and deformed.

The reinforcing member 50 is used for connecting the cloth foundation 6, the base 5 which is a horizontal member, and the through-column 1 (see FIG. 6). Here, the contact surface 51C is connected to the cloth foundation 6. Similarly, by applying the contact surface 51A to the through pillar 1 and the contact surface 51B to the base 5, and using the fastener N from each nail hole 52, each fastener is attached to each structural member and from the nail hole 53 to the fastener N. It is fixed to the foundation by using.

Further, here, by making a part of each of the contact surfaces 51A and 51B with the structural material into convex bending points 54 and 55, the contact surfaces 51A and 51B are made to float above the surface of the structural material to be contacted. In this embodiment, one convex bent portion 54 of the pillar-side contact surface 51A and two convex bent portions 53 of the base-side contact surface 51B are provided. It is optional to provide it. On the other hand, the contact surface 51C with the foundation that hangs in the orthogonal direction from the contact surface 51B on the base side is configured as a separate member from the contact surface 51B on the base side in this embodiment, and its top portion with respect to the bent portion 55 is formed. It is fixed by a bolt B and a nut BN protruding from 51D, and a bolt hole B1 of a bent portion 55 through which the bolt B penetrates is formed in a long hole shape in a direction orthogonal to the extending direction of the structural material.

4 and 5 are views showing a second embodiment of the present invention. The reinforcing member 50 is made of a metal plate having an L-shaped cross section having a contact surface with the structural member in two directions, and one of the contact surfaces is continuous with the contact surface with the foundation in the orthogonal direction. Nail holes are provided on each contact surface.

In the figure, reference numerals 51A and 51B indicate contact surfaces with the structural members arranged in two directions, and 51C similarly indicates a contact surface with a base provided continuously from the contact surface 51B. Reference numeral 52 in the drawing indicates a nail hole provided on the contact surfaces 51A and 51B with the structural material. The nail hole 52 is formed in a long hole shape in which the extending direction of the structural material is the longitudinal side. Incidentally, reference numeral 53 in the drawing indicates a nail hole provided in the contact surface 51C with the foundation.

In this embodiment, the reinforcing material 50 is used at the joint portion of the cloth foundation 6, the base 5 which is a horizontal member, and the through column 1, and here, the contact surface 51C is used as the cloth foundation 6. Similarly, the contact surface 51A is applied to the pillar 1 and the contact surface 51B is applied to the base 5, and by using the fasteners N from the nail holes 52, the fasteners N are attached to the respective structural materials, and the fastener holes 53 (shown in the figure). It is fixed to the foundation by using (without).

Then, here, in each of the contact surfaces 51A and 51B with the structural material, the nail holes 52 are provided at two positions in the longitudinal direction, and the contact surface between the two nail holes is formed with a convex bent portion 54 and The contact surface 51C which is floated from the surface of the structural material to be contacted by 55 and is further continuous in the orthogonal direction from the contact surface 51B is continuous from the bent portion 55.

In this invention, it is needless to say that the fastener using the nail hole may be a screw or a bolt instead of the nail.

In the above invention, the contact surfaces 51A and 51B of the reinforcing member 50 can be expected to be flexible at the convex bending points 54 and 55. Even if the natural vibration is different from that of the constituent metal, it is absorbed by this flexible part, so that the reinforcing material maintains its rigidity, and it is possible to prevent unreasonable stress from being applied to the structural material.

Further, due to the above-mentioned flexible action, the vibration transmitted from the base 5 to the through column 1 is dispersed, and the effect of reducing the vibration of the structural material is also produced.

Further, since the contact surface 51C with the foundation is connected to the bent portion 55 of the contact surface 51B fixed to the base 5, vertical vibration at the time of an earthquake causes vertical vibration of the bent portion 55. The bending causes the buffering effect, which prevents the structural material from being subjected to excessive stress. Therefore, even if an unbalanced motion occurs between the concrete foundation and the wooden structural material due to the difference in natural frequency between the two due to the earthquake, this is absorbed. The effect of preventing the application of various stresses occurs.

On the other hand, in the case of the second embodiment, since the nail hole on the contact surface with the structural member is elongated, the structural member can slightly move with respect to the foundation even if stopped with nails or bolts. . Therefore, even if an unbalanced motion occurs between the concrete foundation and the wooden structural material due to the difference in natural frequency between the two due to the earthquake, this is absorbed. The effect of preventing the application of various stresses occurs.

The above-mentioned reinforcing device is used at a connecting point between a structural material and a foundation constituting a building. FIG. 6 is a diagram showing an example thereof, but other reinforcing devices shown here will be described just in case.

FIG. 7 is a diagram showing the reinforcing member 10. The reinforcing member 10 is made of a flat cross metal plate having contact surfaces with the structural member in four directions, and each contact surface is provided with a nail hole. Reference numerals 11A, 11B, 11C and 11D in the drawing indicate contact surfaces with the structural members arranged in four directions. Further, reference numeral 12 in the drawing indicates a nail hole.

Here, this reinforcing material 10 is used at the joining portion of the barrel 3 which is a horizontal member and the upper and lower tube columns 2 and 2. Here, the contact surfaces 11 B and 11 D are used for the barrel 3. Similarly, the contact surfaces 11A and 11C are applied to the respective tube columns 2 and 2, and fixed to each structural member by using a fastener (not shown) through each nail hole 12.

FIG. 8 is a diagram showing the reinforcing member 20. The reinforcing member 20 is made of a metal plate having a pair of flat T-shaped members each having a contact surface with a structural member in three directions and an L-shaped cross-section formed by connecting the top pieces of each other in a perpendicular direction to each other. , Each contact surface is provided with a nail hole. Reference numerals 21A, 21B, and 21C in the figure denote contact surfaces of one of the plane T-shapes with the structural materials arranged in three directions, and 21D, 21F, and 21G also have the contact surfaces of the other plane T-shape in three directions. Refers to the contact surface with the structural material. Further, reference numeral 22 in the figure indicates a nail hole.

Here, this reinforcing material 20 is used for the connecting portions of the barrels 3 and 3 which are lateral members and the through-columns 1. Here, the contact surfaces 21B and 21E are used for the barrels 3 and 3, respectively. Similarly, by applying the contact surfaces 21A and 21C to one surface of the through-column 1 and the contact surfaces 21D and 21F to the other surface of the through-column 1 as well, and using a fastener (not shown) from each nail hole 22, each structure is obtained. It is fixed to the material.

9 and 10 are views showing the reinforcing member 30. The reinforcing member 30 is a metal in which two contact surfaces facing each other from both sides of one of the contact surfaces are continuous in the orthogonal direction in the shape of a plane cross having contact surfaces with the structural material in four directions. It consists of a plate, and each contact surface is provided with a nail hole. In the figure, reference numerals 31A, 31B, 31C and 31D indicate contact surfaces with the structure material arranged in four directions in a plane cross shape, and 31E and 31F also indicate contact surfaces with the structure material continuous from both sides of the contact surface 31C. Refers to the contact surface. Further, reference numeral 32 in the drawing indicates a nail hole.

Here, this reinforcing material 30 is used at the joint between the barrel 3 and the beam 4 which are horizontal members, and the pipe columns 2 and 2. Here, the contact surfaces 31 B and 31 D are attached to the barrel 3. Similarly, the contact surfaces 31A and 31C are applied to the respective tube columns 2 and 2, and the contact surfaces 31E and 31F are applied to both surfaces of the beam 4 at the same time, and a fastener (not shown) is used from each nail hole 32. It is fixed to each structural material by doing.

FIG. 11 is a view showing the reinforcing member 40. The reinforcing member 40 is made of a flat cross metal plate having contact surfaces with the structural member in four directions, and each contact surface is provided with a nail hole. The reinforcing member 40 is made of a flat cross metal plate having contact surfaces with the structural material in three directions and contact surfaces with the foundation in one direction, and each contact surface is provided with a nail hole. Reference numerals 41A, 41B, and 41C in the drawing indicate contact surfaces with the structural members arranged in three directions, and 41D similarly indicates contact surfaces with the foundation arranged in one direction. In the figure, reference numeral 42 indicates a nail hole provided on the contact surfaces 41A, 41B, 41C with the structural material. The nail hole 42 is formed in a long hole shape in which the extending direction of the structural material is the longitudinal side. Reference numeral 43 in the figure indicates a nail hole provided on the contact surface 41D with the foundation.

Here, this reinforcing material 40 is used in the connection portion of the cloth foundation 6, the base 5 which is a horizontal member, and the pipe column 2. Here, the contact surface 41D is used for the cloth foundation 6 and the same. The contact surfaces 41 B and 41 C are applied to the base 5, and the contact surface 41 A is applied to the tube column 2 as well. By using the fasteners N from the nail holes 42, the fasteners N are attached to the respective structural materials and the nail holes 43 to the fasteners. It is fixed to the foundation by using (not shown).

[0030]

[Effect of device]

 According to the present invention configured as described above, even if an imbalanced motion due to a difference in natural frequency between the concrete foundation and the wooden structural material occurs due to an earthquake, this is absorbed and the shaking is reduced. Therefore, by using the reinforcing device, it is possible to prevent an unreasonable force from being applied to the structural material and to obtain a reliable reinforcing effect. In addition, when implementing this invention, unlike the conventional technology that requires the total removal and re-implementation of the wall material, the removal of part of the wall material between the structural materials or the joint with the foundation Since it can be implemented in, it can be easily implemented in existing buildings.

[Brief description of drawings]

FIG. 1 is a perspective view of a reinforcing device according to a first embodiment of the present invention in use.

FIG. 2 is an exploded perspective view of the first embodiment of the reinforcing device of the present invention.

FIG. 3 is a partially cutaway front view of the reinforcing device according to the first embodiment of the present invention in use.

FIG. 4 is a front view of a second embodiment of the reinforcing device of the present invention in use.

FIG. 5 is a perspective view of a second embodiment of the reinforcing device of the present invention.

FIG. 6 is a perspective view of a building using the reinforcing device of the present invention.

7 is a front view of the reinforcing device shown in FIG.

8 is a perspective view of the reinforcing device shown in FIG.

9 is a perspective view of the reinforcing device shown in FIG.

10 is a perspective view of the reinforcing device shown in FIG.

11 is a front view of the reinforcing device shown in FIG.

[Explanation of symbols]

 1 Through Column 5 Base 6 Cloth Foundation 50 Reinforcement Device 51A Contact Surface with Structural Material (on Column Side) 51B Contact Surface with Structural Material on Base Side 51C Contact Surface with Foundation 54 Convex Bent Point 55 Convex Bend point

Claims (3)

[Scope of utility model registration request] 1. A contact surface (51A-B) with a structural material is formed into an L-shaped cross section having two directions, a column side and a base side, and a part of each contact surface (51A-B) with the structural material is convex. Bent points (5
4, 55) so as to float above the surface of the structural material to be contacted, and the base side contact surface (51
A wooden construction characterized in that the contact surface (51C) with the foundation is further hung in the orthogonal direction from the convex bent portion (55) of B) and a nail hole is provided on each contact surface. Object reinforcement device. 2. A contact surface (51A-B) with a structural material is L-shaped in cross section having two directions, a pillar side and a base side, and a part of each contact surface (51A-B) with the structural material is convex. Bent points (5
4, 55) so as to float above the surface of the structural material to be contacted, and the base side contact surface (51
In the reinforcing device in which the contact surface (51C) with the foundation is hung in the orthogonal direction further than the convex bent portion (55) of B), and each contact surface is provided with a nail hole, A reinforcing device for a wooden building, characterized in that the contact surface (51C) is a separate member, and the contact surface (51C) is fixed to a convex bending portion (55) on the base side by a bolt (B). 3. A contact surface (51A-B) with a structural material is formed into an L-shaped cross section having two directions of a column side and a base side, and a part of each contact surface (51A-B) with the structural material is convex. Bent points (5
4, 55) so as to float above the surface of the structural material to be contacted, and the base side contact surface (51
In the reinforcing device in which the contact surface (51C) with the foundation is hung in the orthogonal direction further than the convex bent portion (55) of B), and each contact surface is provided with a nail hole, The reinforcing device for a wooden building, characterized in that the nail hole (52) of the contact surface (51B) of (1) is formed in a long hole shape.