JP2003301524A - Brace material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brace material easily fitted to a structure without loosening of a yarn bundle and forming a structure having excellent reinforcing effect. <P>SOLUTION: This brace material 1 for reinforcing the structure 2 is equipped with a brace material body 4 formed by applying coating to the surface of a long form body 3 made by forming carbon fiber or Aramid fiber and fixing parts 5, 5 provided on both end parts of the brace material body 4 and fixed to designated positions of the structure 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a brace material for reinforcing a structure.

[0002]

2. Description of the Related Art In order to improve the earthquake resistance of a building, in the case of a general wooden house, it is reinforced by providing a brace material (brace) made of wood or steel in the rectangular opening of the building and other steel frames. In the case of structures and buildings with reinforced concrete structures, it is known to reinforce by providing steel brace materials.

The wooden brace material is formed with a notch on the side surface of a pillar or a base so that its end can be fitted, and the end of the brace material is fitted into this notch and fixed with nails or the like. There is. However, this wooden brace material is generally effective for compressive force but poor in reinforcing property, and there is a problem that the notch is formed in its construction and a great deal of labor is required, resulting in high cost. The steel brace material is, for example, a turnbuckle bolt or a steel brace material, or a steel brace composed of a steel frame fitted in the opening and a steel brace stretched over the frame. Materials and the like. These steel brace materials can be stronger than wooden brace materials,
Since it is large and heavy, it requires a large amount of work to install it in the opening of the building, which requires a longer construction period and causes a lot of vibration and noise for the work, and further increases the weight of the building. There was a problem.

[0004]

Therefore, a method is known in which a carbon fiber which is lightweight and has high strength is used as a brace material, and the brace material made of such a carbon fiber is installed to reinforce the brace material. . However, since the brace material made of carbon fiber is made by bundling very thin yarn bundles in units of several tens and curing and molding them into a rod shape or a plate shape with an adhesive or the like, such a carbon fiber brace material is used. When a bracing material made of steel is laid over the opening or the like, the bundle of carbon fibers is easily loosened, and installation work to the building is difficult,
Moreover, sufficient reinforcement could not be performed.

The present invention has been made in view of the above circumstances, and a brace material that can be easily attached to a structure without loosening the yarn bundle and can be a structure having excellent reinforcing properties. The challenge is to provide.

[0006]

In order to solve the above problems, the invention of claim 1 is, for example, as shown in FIGS.
As shown in (c), a brace member 1 for reinforcing the structure 2.
A brace material main body 4 having a coating on the surface of a long molded body 3 formed by molding carbon fibers or aramid fibers so as to cover the surface, and both end portions of the brace material main body 4. And fixing units 5 and 5 which are fixed to predetermined positions of the structure 2.

According to the first aspect of the present invention, the surface of the molded body formed by molding the carbon fiber or the aramid fiber is coated on the surface of the brace material so as to cover the surface, and the predetermined structure is provided. Since it has a fixing portion that is fixed at a position, it is possible to make a brace material that is lightweight and has high tensile strength as compared with the conventional wooden brace material or steel brace material. Therefore, it is easy to carry and can be installed easily, and the cross section of the brace body can be made very small. By using the brace material having such a small cross section, it is possible to install it in a narrow place. . In addition, since the surface of the molded product formed by molding carbon fiber or aramid fiber is coated, the yarn bundle of carbon fiber or aramid fiber is not loosened and can be easily attached to the structure. It is also possible to obtain a structure having excellent reinforcing properties. Further, the fixing portions provided at both ends of the brace material body can firmly fix the structure to a predetermined position of the structure, and the construction thereof becomes easy.

The invention of claim 2 is, for example, as shown in FIGS. 1 and 2 (a) and 2 (b), the brace member 1 of claim 1.
In the above, the brace material main body 4 has a rope shape, and the fixing portion 5 can insert the fixing portion 6 fixed to a predetermined portion of the structure 2 and the end portion of the brace material main body 4. Further, it is characterized by including a holding portion 7 capable of holding the end portion of the brace material body 4 by introducing a tensile force to the brace material body 4.

According to a second aspect of the present invention, the brace material body is in the shape of a rope, and the fixing portion can be inserted into the fixing portion and the end portion of the brace material body, and is attached to the brace material body. Since it has a sandwiching portion capable of sandwiching the end portion of the brace material body by introducing a tensile force, the end portion of the brace material body is inserted to introduce a tensile force into the brace material body, and the brace material By sandwiching the end portion of the main body by the sandwiching portion, the fixing portions can be easily and firmly provided at both end portions of the brace material main body. Further, by introducing a tensile force into the brace material body, the end portion of the brace material body is sandwiched by the sandwiching portion. Therefore, by loosening this tensile force, the end portion of the brace material body can be separated from the sandwiching portion. You can Therefore,
For example, if you want to adjust the length of the brace material body, as described above, after separating the end portion of the brace material body from the holding portion, appropriately adjust the length of the end portion of the brace material body to be inserted, again, The length of the brace material body can be changed by introducing a tensile force into the brace material body and holding the end portion of the brace material body by the holding portion. In this way, since the length of the brace material body can be easily changed, it is not necessary to predefine and manufacture the length of the brace material body, and the brace material body can be appropriately adjusted depending on the site. It also leads to cost reduction. Further, since the brace material main body has a rope shape, it can be installed in a very narrow place such as an attic.

The invention of claim 3 is, for example, as shown in FIGS. 3 and 4 (a) and 4 (b), the brace member 2 of claim 1.
1, the brace material body 23 has a thin strip shape, and the fixing portion 24 includes a fixing portion 25 fixed to a predetermined portion of the structure 2, and the fixing portion 25 has a brace material body 23. Is characterized in that the end portion of is attached over its entire width.

According to the third aspect of the present invention, the brace material body has a thin strip shape, and the fixing portion includes the fixing portion, and the end portion of the brace material body extends over the fixing portion. Since it is attached by being attached, the fixed portion and the brace member body can be firmly attached. In addition, since the thickness of the brace material body is smaller than that of the second aspect, there is no problem even if the brace material body is thin, for example, it is installed on the back surface of an interior material, an exterior material, etc., and it is excellent in appearance. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First and second embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an installation structure of a brace material in which a brace material according to a first embodiment of the present invention is installed in a structure, and FIGS. 2 (a) and 2 (b) are fixing portions on a brace material body. 2 (c) is a cross-sectional view of the brace member body. FIG.

As shown in FIGS. 1 and 2 (a) to 2 (c), the brace member 1 according to the first embodiment of the present invention reinforces the structure 2. The brace material 1 is a brace material body 4 in which a surface of a long molded body 3 formed by molding carbon fiber is coated so as to cover the surface.
And the fixing portions 5 and 5 which are provided at both ends of the brace material main body 4 and are fixed to predetermined positions of the structure 2.

The brace material body 4 has a rope shape. The molded body 3 is obtained by bundling a very thin bundle of carbon fibers in a unit of several tens to several hundreds, passing the end portion of the bundle of carbon fibers through the adhesive while pulling it at a constant strength, and then It can be obtained by forming a rope through a molding frame. The surface of the molded body 3 thus obtained is coated to form the coating layer 3a.

As shown in FIGS. 2 (a) and 2 (b), the fixing portion 5 is made of metal, and has a fixing portion 6 fixed to a predetermined portion of the structure 2 and an end of the brace member body 4. And a holding portion 7 capable of holding the end portion of the brace material body 4 by inserting a tensile force into the brace material body 4.

The fixing portion 6 is a plate-like member having a substantially rectangular shape in a front view, and a bolt (not shown) for fixing the fixing portion 6 to a predetermined portion of the structure 2 is communicated with the fixing portion 6. Five holes 8 ... Are formed.

The holding portion 7 is provided with a holding portion main body 9 and a locking portion 10 which is provided at the center of the surface of the holding portion main body 9 and which holds the end portion of the brace material main body 4 along the outer circumference. It is provided on both side edge portions 9a, 9a of the holding portion main body 9 facing each other,
The brace material main body 4 that is locked to the locking portion 10 is
It is provided with pressing portions 11 and 11 which are pressed to the 0 side and the front surface side of the holding portion main body 9.

The holding portion main body 9 is a plate-like member having a substantially trapezoidal shape in a front view, and the holding portion main body 9 is formed integrally with the fixing portion 6. Further, an insertion opening 12 into which the end of the brace member body 4 is inserted is provided at the end on the side where the fixing portion 6 is not integrally formed. This insertion slot 1
The width of 2 is formed to be narrower than the width of the end of the locking portion 10 on the wide side, which will be described later.
It prevents it from jumping out through.

The holding portions 11 and 11 are the holding portion main body 9
Along both side edges 9a, 9a facing each other (inclined inclined portion of the sandwiching portion main body 9), wall portions 11a, 11a standing upright from the both side edges 9a, 9a, and the wall portion 11a. ,
Extending portion 11 extending from 11a to the front surface side of the holding portion main body 9
b and 11b are provided. By thus providing the wall portion 11a and the extending portion 11b, the end portion of the brace material body 4 locked by the locking portion 10 is pressed toward the locking portion 10 side by the wall portions 11a, 11a. With extension 1
It is pressed down to the front surface side of the holding portion main body 9 by 1b and 11b.

The locking portion 10 has a wedge shape and is arranged between the pressing portions 11 and 11 and has a locking shape.
The holding portion main body 9 is provided such that the narrow end portion side thereof is located on the insertion port 12 side and the wide end portion side thereof is located on the fixing portion 6 side. Since the locking portion 10 is thus provided between the pressing portions 11 and 11, the end portion of the brace member body 4 is inserted between the pressing portions 11 and 11 and the locking portion 10. An insertion portion 13 is formed. Therefore, the end portion of the brace member body 4 inserted from the insertion opening 12 is inserted into the insertion portion 13 and locked along the outer periphery of the locking portion 10.

The locking portion 10 is slidably provided from the fixed portion 6 side to the insertion opening 12 side. That is,
As shown in FIG. 2A, the brace member main body 4 is inserted from the insertion opening 12 in a state where the locking portion 10 is slid to the fixed portion 6 side.
End portion (one end portion) of the brace member body 4 is inserted into the insertion portion 13 and is locked along the outer periphery of the locking portion 10, and the end portion of the brace material body 4 is again exposed from the insertion opening 12 to the outside. . Then, as shown in FIG. 2 (b), by pulling both ends of the brace member body 4 (in the direction of the arrow), the locking portion 10
Is slid from the fixed portion 6 side to the insertion port 12 side. Here, the locking portion 10 slid to the insertion opening 12 side is stopped at the insertion opening 12, and the inserted brace material body 4 is sandwiched by the locking portion 10 and the pressing portions 11, 11.
Further, the brace member main body 4 thus sandwiched is loosened by sliding the locking portion 10 again from the insertion opening 12 side to the fixed portion 6 side (FIG. 2 (a)). reference).

Therefore, for example, when it is desired to adjust the length of the brace material body 4, the locking portion 10 is slid from the insertion opening 12 side to the fixing portion 6 side as described above, and the brace material body 4 is moved. Is loosened, and from this state, the end of the brace member body 4 is further inserted into the insertion opening 12 or removed from the insertion opening 12 to adjust its length as appropriate (see FIG. 2 (a )reference). After that, by pulling both ends of the brace material main body 4, the locking portion 10 is slid from the fixed portion 6 side to the insertion port 12 side, and the brace material main body 4 is moved to the locking portion 10 and the pressing portion 1.
It is clamped and fixed by 1 and 11 (see FIG. 2 (b)).

Next, the installation structure of the brace material 1 in which the brace material 1 of the first embodiment of the present invention is installed on the structure 2 will be described. As shown in FIG. 1, the pillars 15, 15 are mounted on the base 14 installed at the upper end of the foundation (not shown).
Brace members 1 and 1 are installed on the structure 2 in which the beam 16 is bridged between the columns 15 and 15. That is, two brace members 1 and 1 are installed in a rectangular opening 17 formed by the base 14, the pillars 15 and 15, and the beam 16 so as to intersect in an X shape.

In these brace materials 1 and 1, the fixing portions 6 and 6 of the fixing portions 5 and 5 provided at both ends of the brace material 1 and 1 are joined to the base 14 and the pillars 15 and 15, and the beam 16 and the pillar 1, respectively.
It is fixed to the structure 2 by being arrange | positioned at the joint part with 5, 5, and a bolt (not shown) is connected and tightened from the bolt holes 8 of the fixing | fixed part 6. In addition,
The fixing portion 6 is fixed to the front surface side of the joint portion.

With such a structure for installing the brace material 1, when the opening 17 is about to be deformed due to an earthquake or the like, the brace material 1 having a very high tensile strength strongly resists the tensile force. Therefore, the structure 2 having excellent earthquake resistance can be obtained.

Brace material 1 according to the first embodiment of the present invention
According to the above, the brace material main body 4 coated on the surface of the molded body 3 formed by molding the carbon fiber or the aramid fiber so as to cover the surface, and the structure 2 is fixed at a predetermined position. Since the brace material 1 is provided with the fixing portions 5 and 5, the brace material 1 can be lightweight and have high tensile strength. Therefore, the brace material body 4 can be easily transported, can be easily installed, and can have a very small cross section, and can be installed in a narrow space. Moreover, the yarn bundle of the carbon fibers and the aramid fibers is not loosened and can be easily attached to the structure 2, whereby the structure 2 having excellent reinforcing properties can be obtained. Furthermore, the structure 2 is formed by the fixing units 5 and 5.
It can be firmly fixed at a predetermined position, and its construction becomes easy.

The brace material body 4 has a rope shape, and the fixing portion 5 can insert the fixing portion 6 and the end portion of the brace material body 4 and introduces a tensile force into the brace material body 4. Since the holding portion 7 that can hold the end portion of the brace material body 4 is provided, the fixing portions 5 and 5 can be easily and firmly provided at both end portions of the brace material body 4. Further, since the end portion of the brace material body 4 can be separated from the holding portion 7 by loosening the tensile force, the length of the brace material body 4 can be easily changed. Therefore, the length of the brace member body 4 can be adjusted appropriately according to the site, which leads to cost reduction. Further, since the brace member body 4 is in the shape of a rope, it can be installed in a very narrow place.

Next, a brace material according to the second embodiment of the present invention will be described. FIG. 3 is a front view showing an installation structure of a brace material in which a brace material according to a second embodiment of the present invention is installed on a structure, and FIG. 4 (a) is a perspective view showing a main part of the brace material. 4 (b) is a cross-sectional view of the brace material body.

As shown in FIGS. 4 (a) and 4 (b), the second aspect of the present invention
The brace material 21 of the embodiment is similar to the first embodiment in that the surface of the molded body 22 formed by molding the carbon fiber,
A brace material body 23 coated so as to cover the surface and fixing portions 24, 24 provided at both ends of the brace material body 23 and fixed at predetermined positions of the structure 2 are provided. ing. Reference numeral 22a in the figure denotes a coating layer formed by coating the surface of the molded body 22. Since the method for manufacturing the molded body 22 is the same as the method described above, the description thereof will be omitted.

The brace material body 23 has a thin strip shape. The fixing unit 24 is made of metal and has a structure 2
Of the brace material main body 23 is attached to the fixing portion 25 over its entire width.

The fixing portion 25 is a plate-shaped member having a substantially rectangular shape in a front view, and a bolt (not shown) for fixing the fixing portion 25 to a predetermined portion of the structure 2 is communicated with the fixing portion 25. Five holes 26, ... Are formed. Also, the fixed portion 2
A slit-shaped notch 27 is formed at the side end portion of 5. The end of the brace material body 23 is inserted into the cut portion 27, and the brace material body 23
The fixing portion 25 and the brace material body 23 are attached by an adhesive or the like applied to the end portions of the.

The method of attaching the fixing portion 25 and the end portion of the brace material main body 23 is not limited to the above-mentioned method, and for example, the side end portion of the fixing portion 25 and the brace material main body 23 can be attached.
The end may be directly bonded with an adhesive, or may be attached with a nail or the like.

Next, the installation structure of the brace material 21 according to the second embodiment of the present invention installed on the structure 2 will be described. As shown in FIG. 3, the installation structure of the brace member 21 according to the second embodiment of the present invention is substantially the same as the installation structure of the brace member 1 according to the first embodiment, and includes a base 14, a pillar 15, and Two braces 21 and 21 are provided in the rectangular opening 17 formed by the beam 15 and the beam 16.
It is constructed so as to intersect in a letter shape. That is, the fixing portions 25, 25 of the fixing portions 24, 24 provided at both ends of the brace member 21 are fastened and fixed by bolts (not shown), respectively.

Brace material 2 according to the second embodiment of the present invention
According to 1, the brace material body 23 has a thin strip shape, and the fixing portions 24, 24 are provided with the fixing portions 25, and the end portions of the brace material body 23 are attached to the fixing portions 25 over their entire width. Therefore, the fixing portion 25 and the brace material main body 23 can be firmly attached. Further, compared with the brace material 1 of the first embodiment, the brace material body 4
Since it has a small thickness, it can be installed on the back surface of a thin material such as an interior material or an exterior material without any trouble and is excellent in appearance.

Further, since the end portion of the brace material body 23 is attached to the fixing portions 24, 24 and the length thereof is regulated unlike the brace material 1 of the first embodiment, for example, It can be used for wooden houses where the floor height and pillar spacing are almost fixed. Therefore, when it is used for a wooden house or the like, mass production is possible.

Further, in the second embodiment of the present invention, the same effects can be obtained with respect to the same components as those in the first embodiment, and therefore the description thereof will be omitted.

The present invention is not limited to the above-described embodiments, but can be modified as appropriate without departing from the spirit of the invention. For example, the brace members 1 and 21 of the first and second embodiments have the molded bodies 3 and 22 formed by molding carbon fiber.
May be molded from aramid fiber.

Further, in the first and second embodiments of the present invention, the brace members 1 and 21 are installed in the opening 17 formed by the base 15, the pillars 15 and 15, and the beam 16. However, the present invention is not limited to this, and may be installed, for example, in the attic or outside the outer wall. Further, the structure 2 is, for example, a structure such as a steel frame structure, a reinforced concrete structure, or a wooden structure.

Although the fixing portions 5 and 24 are made of metal, they may be made of resin or wood.

[0040]

According to the invention of claim 1, it is possible to provide a brace material which is lightweight and has high tensile strength. Therefore, it is easy to carry, construction is easy, and it can be installed in a narrow place. Further, the yarn bundle of carbon fibers or aramid fibers is not unraveled, can be reliably installed in the structure, and can be a structure having excellent reinforcing properties. Further, the fixing portion can easily and firmly fix the structure at a predetermined position.

According to the second aspect of the invention, the same effect as that of the first aspect can be obtained, and the fixing portions can be provided easily and firmly at both ends of the brace material body. Further, by loosening the tensile force, the end portion of the brace material body can be separated from the holding portion. Therefore, the length of the brace member body can be easily changed, which leads to cost reduction. Furthermore, since the brace material body has a rope shape, it can be installed in a very narrow place.

According to the invention of claim 3, not only the same effect as that of claim 1 can be obtained, but also the fixing portion and the brace material body can be firmly attached. In addition, even if it is installed on the back surface of the interior material, exterior material, etc., there is no problem and the appearance is excellent.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention, showing a brace material installation structure.

2 (a) and 2 (b) are perspective views showing a state in which a fixing unit is attached to a brace material body, and FIG. 2 (c) is a cross-sectional view of the brace material body.

FIG. 3 is a front view showing a second embodiment of the present invention and showing a brace material installation structure.

FIG. 4 (a) is a perspective view showing a main part of a brace member,
(b) is a cross-sectional view of the brace material body.

[Explanation of symbols]

1,21 Brace material 2 structures 3 molded body 4,23 Brace material body 5 fixing section 6,25 Fixed part 7 clamping part

Claims (3)

[Claims] 1. A brace material for reinforcing a structure, the brace material comprising a long molded body formed by molding carbon fiber or aramid fiber, and a coating applied on the surface of the long molded body. A brace material comprising a main body and fixing portions provided at both ends of the brace material main body and fixed to predetermined positions of a structure. 2. The brace material according to claim 1, wherein the brace material body has a rope shape, and the fixing portion includes a fixing portion fixed to a predetermined portion of the structure, and the brace material body. And a holding portion that can hold the end portion of the brace material body by introducing a tensile force into the brace material body. 3. The brace material according to claim 1, wherein the brace material body has a thin strip shape, and the fixing portion includes a fixing portion fixed to a predetermined portion of the structure. The brace material is characterized in that the end of the brace material body is attached to the entire width of the brace material.