JP2000154593A - Reinforcing metal fitting for building structural body and reinforcing method of building structural body using its reinforcing metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a reinforcing metal fitting to various building structural bodies such as a wooden building of multiplayer flats. SOLUTION: This reinforcing metal fitting is provided with a first connectedly attaching member 12A which can be attached on a desired part of a building structural body, at least one of tension regulating members 13, 13b, 14, 14b connected freely to swing to a part of the first connectedly attaching member and having a mechanism wherein tension can be regulated. Further, the reinforcing metal fitting is composed of a second connectedly attaching member 12B which can be attached on a desired part of the building structural body, and a wire tendon 16 of a desired length to connect between a part of the second connectedly attaching member 12B and the tension regulating member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing member for a building structure and a method for reinforcing a building structure using the fitting, and more particularly to a reinforcing member for a building structure effective for reinforcing a multi-story wooden building, and using the fitting. The present invention relates to a method for reinforcing a building structure.

[0002]

2. Description of the Related Art In recent years, wooden multi-story houses have been widely constructed with the aim of effectively using limited residential land and realizing a spacious living environment. In particular, restrictions on three-story wooden houses intended for semi-fireproof areas. Following the revision of the Building Standards Law in 1987, including the streamlining of Japan, multi-story wooden houses including three stories are becoming widespread.

[0003] In Japan, strict restrictions on three-storey wooden houses have been imposed for a long time in semi-fire prevention areas, as is well known, due to the fact that limited residential land must be effectively used and earthquakes frequently occur. Against the background
It is intended to ensure safety.

[0004] Even though the construction restrictions of such multi-story wooden buildings have been relaxed, it is natural that safe construction must be ensured, and various reinforcements such as improvement of earthquake resistance and wind pressure resistance are required. Means and fire prevention measures have been taken, and many tools and construction methods for reinforcement have been proposed. For example, prefabricated houses combining lightweight steel frames and steel materials are one of them, but in Japan there is still a strong tendency to stick to traditional wooden houses.

[0005] As a reinforcing means for such a wooden house, generally, a method using a brace for arranging and fixing a well-known wood obliquely by a conventional construction method or a horizontal portion such as a base is used. There is known a fire-fighting method or the like in which a small reinforcing member is obliquely disposed near the corner of the orthogonal portion.

However, such a conventional reinforcing method has the following disadvantages and does not function sufficiently. In other words, in the conventional method of reinforcing wood by bracing or burning, it is necessary to cut into each piece of wood when attaching the reinforcing wood, and as a result, the strength of the main building material may be reduced. In addition, the strength of the attachment means, for example, the nailing or bolting portion itself is insufficient.

[0007] Furthermore, joints of each member with tenons, tenon holes, tenon grooves, and the like may fall off when subjected to strong and repetitive external force such as an earthquake or wind pressure, and in extreme cases, may collapse. . To avoid this situation,
Local reinforcing metal fittings for joints between horizontal members such as spar or body and vertical members such as columns, for example, flat hardware,
Fastening with haute plate bolts, hole-down hardware of various shapes, and the like is known.

[0008] However, the conventional construction method using these reinforcing brackets mainly focuses on local reinforcement, and comprehensive measures have not always been achieved. In addition, there are many requests to improve the seismic resistance and wind pressure resistance of existing houses as well as in the case of new construction, but at present, sufficient measures have not been obtained.

[0009]

SUMMARY OF THE INVENTION The present invention provides a building structure reinforcing metal fitting applicable to various building structures including a multi-story wooden building and a method for reinforcing a building structure using the reinforcing metal fitting. The task is to

[0010]

SUMMARY OF THE INVENTION A first object of the present invention is to
A first connection attachment member that can be attached to a required portion of the building structure; and a mechanism that is swingably connected to a part of the first connection attachment member and that can adjust the tension. At least one tension adjustment member 1 provided
3, 13b, 14, 14b, and second connecting mounting members 12, 22, 3, which can be mounted on required portions of the building structure.
The present invention is solved by a building structure reinforcing metal fitting consisting of 2, 42 and a linear tension member 16 having a desired length for connecting between a part of the second connection mounting member and the tension adjusting member. .

As the linear tension member 16 in this case, a wire rope having a desired thickness and strength, or a wire formed by twisting several piano wires can be used. Further, the first and second connection mounting members 12, 22, 3
The members 2 and 42 can be made of members of the same kind as well as members of different types depending on the situation of the attachment site. By using a wire rope as the linear tension member 16, it is possible to prevent the generation of squeak noise due to the shaking of the building.

Further, the first and second connection mounting members 12, 22, 32, and 42 are attached to a structural member C such as a horizontal member such as a beam, a girder or a waist, or a vertical member such as a column. It is secured by bolts and nuts penetrating appropriate portions of the structural material C and / or mortises and mortises formed between the structural materials C. As a result, the connecting attachment member is firmly fixed to the structural material of the building.

A second object of the present invention is to provide a first connection mounting member, a tension adjusting member, a linear tension member, and a second connecting member.
Brace and building member by arranging the first and second connecting mounting members in the building structure reinforcing metal fitting in which the connecting mounting members are connected in series at least at one of diagonal positions in a rectangular portion of the building structure. The problem is solved by a method of reinforcing a building that functions as a fall-off prevention means and achieves a desired rectangular state while adjusting respective tension adjusting members.

[0014] In this case, the reinforcing method according to the present invention includes a rectangular portion perpendicular to the ground, that is, the left and right columns and the base.
It can be applied arbitrarily to a square part formed by beams, girders, etc., or to a horizontal square part formed by bases, beams, girders, etc., or to a square part combining both. it can.

In such a building structure reinforcing metal fitting according to the present invention, the connecting mounting members 12, 22 at both ends are provided.
32, 42 and tension adjusting members 13, 13b, 14, 1
4b is formed of a rigid body, and the linear tensioning member 16 connecting the middles thereof should be of appropriate thickness and strength in consideration of the strength of the building structure, but is usually flexible. It has the property. Therefore, it is easy in any of manufacturing, storage, transportation and construction,
There is little difficulty in construction.

In addition, since the required space for mounting the building structure reinforcing bracket can be reduced, the degree of freedom in design can be increased, so that not only new construction, but also preventive reinforcement work for existing building structures, and It can be easily applied to the reinforcement work associated with the restoration work of a partially damaged or distorted building that has been damaged by an earthquake or typhoon, etc., and each has a remarkable effect.

Further, according to the method for reinforcing a building structure using the building structure reinforcing metal fitting according to the present invention, the thickness and length of the same or different type of connecting attachment member, tension adjusting member, linear tension member, By selecting the pin members and the like connecting each other, it is possible to cope with various buildings. In particular, the connection of at least one of the linear tensioning members can be easily adjusted by a bolt connection composed of a U-bolt and a metal fitting commonly called a head, and so-called field adjustment is also possible. Therefore, the feature is that it can be constructed while manufacturing or modifying while determining the type of connecting fixture and the length of the linear tension member etc. according to the current situation of the existing building without manufacturing the whole factory. can get.

[0018]

Next, an embodiment of the present invention will be disclosed with reference to the accompanying drawings. FIG. 1 is a diagram showing a basic configuration of a building structure reinforcing metal fitting according to the present invention. It should be noted that the structural material C merely indicates the base positional relationship with the building structure reinforcing metal fittings, and does not match in dimension.

As shown in the figure, first and second connection mounting members 12A and 12B for mounting on diagonal portions of a rectangular structure are provided at both ends of the structural structural member. Connecting attachment members 12A, 12 of this shape
B shows a structure suitable for being attached to the diagonally inside corner of the rectangular structure, and a shape suitable for each application site should be selected and formed as described later. The first and second connection attachment members 12A and 12B are fixed to the structural material C here by bolts and nuts that penetrate the structural material C.

A connection mounting member 12 having the shape shown in FIG.
A triangular member 12t for attaching a wire rope or the like that functions as a tension adjusting member or a linear tensioning member, which will be described later, is formed at a portion between the orthogonal portions 12r of A and 12B. This triangular member 12t is
r can be formed by welding a separately cut triangular plate or bending an integral part with one of the orthogonal portions 12r, and then welding appropriate portions as necessary. The triangular member 12t is connected with a bolt 12b through which a plate-like portion of a so-called blade plate member 13 is inserted.

A tension adjusting member 14 is connected to a bolt 13b at one end of the blade plate member 13 connected to the first connection mounting member 12A. The tension adjusting member 14 is not necessarily limited, but since it has been widely used since ancient times and various materials, dimensions and strengths are available, a turnbuckle is used in the present embodiment. ing. It is also possible to use a tension adjusting member or the like in which a bolt and a sleeve are combined.

As is well known, the turnbuckle has opposite ends at the both ends of the main body, and by rotating the main body to the left or right, the longitudinal dimension is changed, and thus the tension can be adjusted appropriately. Things. In the present embodiment, one tension adjusting member 14 is connected. However, for example, in a case where the adjustment margin needs to be increased, the tension adjusting member 14 is provided at both ends of the wire rope 16 functioning as a linear tension member. In each case, the length can be adjusted twice.

The other end of the tension adjusting member 14 is a so-called eyeglass bolt 14b. An end of a wire rope 16 functioning as a linear tension member is inserted through an annular portion of the eyeglass bolt 14b. Connector 17
Has been tightened by. The connection of the wire rope 16 may be completed in a factory beforehand, but may be performed after confirming the length of the wire rope 16 on site. In the case of factory treatment, it is also possible to connect by a simple method using a crimping assistant.

The other end of the blade plate member 13 connected to the second connection mounting member 12B shown in the lower part of FIG. 1 is an eyeglass bar 13e, and the annular portion of the eyeglass bar 13e is a linear tension member. A functioning wire rope 16 is connected. As described above, it is usually sufficient to use one tension adjusting member 14, but when it is necessary to particularly increase the adjustment margin, a second tension adjusting member can be provided.

Note that both ends of the wire rope 16 functioning as a linear tension member are connected to the annular portions of the eyeglass bolt 13b and the eyeglass rod 13e, respectively. However, it is also possible that one or both of them can be terminal-processed to be easily tightened by factory production. In particular, when the required length can be reliably calculated with an error within a predetermined range as in a newly-built building, it is possible to reduce the number of man-hours on site by manufacturing in advance by factory production.

FIG. 2 shows an example of the structure of the connection attachment members 12A and 12B suitable for attachment to the diagonally inside corners of the rectangular structure as shown in the embodiment of FIG. (A) is a front view, (B) is a left side view, and (C) is a plan view. FIG. 5A shows the orthogonal portion 12.
r is shown vertically and horizontally, there is a triangular member 12t on the back side of the paper, and through holes 12h and 12a for inserting bolts are provided on the respective surfaces.
The through holes 12h and 12h in the orthogonal portion 12r are:
It is desirable to provide a plurality of right and left or upper and lower steps as shown by solid and broken circles in FIGS. This is to ensure that the fixing bolts do not overlap when added to the front and back of the building structure to be reinforced.

The connection mounting members 12 shown in FIG. 2 are disposed at diagonal portions of a vertical rectangular structure formed by, for example, a base, left and right columns, beams, girders, or body differences, and are provided with through bolts. And so on. In this case, the through holes 12a of the triangular members 12t of the connection attachment members 12A and 12B are connected to each other via a tension adjusting member 14 and a wire rope 16 that functions as a linear tension member. Thereafter, by adjusting both tension adjusting members 14 appropriately, the horizontal and vertical members are adjusted so as to maintain an accurate orthogonal state. Note that, depending on the state of the building structure, for example, the combination of the left and right structures, it is possible to dispose only one diagonal portion and omit the other. Needless to say, it is desirable to dispose them at both diagonals.

Such a reinforcing method can also be applied to a horizontal rectangular structure formed by vertical and horizontal bases, beams, girders, body differences, or the like. In addition to the above-described reinforcement of the vertical rectangular structure, a stronger building can be formed in such a horizontal rectangular structure by performing similar reinforcing means.

An example of the configuration of the other main members shown in FIG. 1 will be described below. FIG. 3 shows the blade plate member 13. This member itself is conventionally known as a feather board bolt, and a bolt 13b or an eyeglass bar 13e is provided on a flat steel plate provided with a through hole 13h by reference numeral 13e.
It is what was welded like w. The dimensions and strength of the steel plates and bolts are appropriately selected in consideration of the scale and purpose of the building structure to be reinforced.

FIG. 4 shows an example of the configuration of a turnbuckle as the tension adjusting member 14. Turnbuckles have long been known as members for adjusting the longitudinal dimension or tension. The inside of a flat cast steel material is hollowed out, and bolts 13 indicated by broken lines from both sides are provided at both ends.
A screw hole for inserting the b and 14b is provided, and the bolts 13b and 14b are moved as shown by left and right arrows according to either clockwise or counterclockwise as shown by a double-headed arrow X, and tension or relaxation is performed. It is a hurry.

The tension adjusting member 14 is not limited to the turnbuckle, but may be a component capable of adjusting the length by a combination of a bolt and a sleeve. The dimensions and strength of the tension adjusting member 14 are appropriately selected in consideration of the scale and purpose of the building structure to be reinforced.

FIG. 5 shows an embodiment in which the wire rope 16 is attached to an annular portion such as eyeglass bolts 13 and 14b. The end of the wire rope passed through the counterpart annular portion is superimposed on the wire rope main body, and the connector 1
No.7. It is also possible to use a strong crimping fitting instead of the connecting tool 17 to fasten the work as a factory-made work, for example.

FIG. 6 shows another embodiment of the connecting and attaching member. The connecting attachment member 22 is formed in a hexagonal shape obtained by cutting off both upper corners of a rectangular steel plate. The connection mounting member 22 has a configuration suitable for reinforcing mainly a horizontal rectangular structure centered on a stud or a lower floor and an upper floor of a multi-story wooden building. The square hole 22H allows the tenon to penetrate.

The first and second two through holes 22
a and 22b are for attaching the blade plate member 13, respectively, and the third through holes 22h are fixed to the structural material C with bolts or the like. Columns, girders, body differences and the like as the structural material C in these embodiments are each partially shown by broken lines.

FIG. 7 shows still another example of the structure of the connection mounting member. This connection mounting member 32 has three through holes 32a, 32b, and 32h in the trapezoidal plate portion as in the embodiment shown in FIG. 6, and has a folded portion 32f as shown in FIG. ing.

The through holes 32a and 32b are for attaching the blade plate member 13 respectively, and the third through hole 32h is fixed to a structural material (not shown) with bolts or the like. In addition, as shown in FIG. 2B, it has a folded portion 32f. Therefore, this shape corresponds to the member shown in FIG. 6 bent at a right angle near the center. The folded portion 32f can be provided with a through hole for a bolt and / or a square hole for a tenon to fix to a structural material such as a column, a girder, or a body difference. And the detailed description is omitted.

FIG. 8 shows an example of the configuration of a connection mounting member having still another shape. This connection mounting member 42
Is a substantially regular octagonal steel plate material with four corners cut off. The connection mounting member 42 is used when mounting the building structure reinforcing metal fittings in four directions centering on a specific member as a structural material. A large cross-shaped through hole 42H is formed near the center. The through hole 42H allows a horizontal or vertical tenon to penetrate as necessary, but can be used without penetrating, for example, when it is disposed on the outermost wall or the like.

Here, various connecting members shown in FIGS. 2, 6, 7 and 8 are disclosed.
The shape is not limited to these as long as it can be attached to a structural material and connected to a feather board member, etc.
The shape can be arbitrarily selected. In addition, the building structure reinforcing metal fitting can be formed by appropriately combining the same kind or different kinds of connection attachment members according to the conditions of the attachment portions at both ends of the connection attachment member.

Each of the sides of the octagonal steel plate shown in FIG. 8 has a fixing hole 42h for the structural material indicated by a broken line, and through holes 42a and 42 for attaching the feather plate member 13, respectively.
b, 42c and 42d are formed. In the case where the connecting attachment member 42 having such a shape that the tension of the reinforcing metal is applied in such a symmetrical direction is used, it is preferable that the tension adjusting members 14 (not shown) are disposed near the connecting attaching member 42, respectively. convenient.

When adjusting the tension in such a configuration, it is desirable to take care not to damage the central structural material, particularly the tenon, and to keep the tension adjusting member constant over four turns. On the other hand, it is necessary to adjust the tension sequentially. In this case, work can be performed while preventing a situation in which excessive unbalance occurs due to joint work with one worker or a nearby worker in the immediate vicinity.

In the building structure reinforcing metal fitting having the above configuration, the required installation gap, that is, the space between the inner wall and the outer wall can be made thin, so that there is no need to change the design for providing a special installation space. In particular, the connecting attachment member and the tension adjusting member at both ends are formed of a rigid body. No significant increase in the gap occurs at the location.

The attachment site of the tension adjusting member is not restricted to one side, and can be arbitrarily selected. Therefore, in the case of a restriction on use, for example, in the case of approaching and interfering with another structural material, the direction can be changed appropriately. Also, a plurality of tension adjusting members can be provided to facilitate the adjusting operation. Therefore, not only can it be applied to a newly-built building, but also the seismic resistance and wind pressure resistance of an existing building can be significantly improved. When the present invention is applied to an existing building, for example, only the outer wall surface of a desired portion is removed, and the reinforcing work can be performed with minimum cost and man-hour.

Further, from the characteristics described above, the present invention can be easily applied not only to the wall surface perpendicular to the ground surface but also to the lower layer of the floorboard, the gap between the ceiling and the upper floor, the ceiling of the uppermost floor, and the like. . In this case, as shown in FIG. 9, the reinforcing members on the vertical surface are also used as connecting and connecting members between the upper and lower floors, and the connecting and mounting members for the reinforcing members on the vertical surface and the reinforcing members on the horizontal surface are partially shared. By doing so, a very strong reinforcement can be realized. Therefore, for example, a sufficiently strong building can be configured even with connecting pillars in the case of a three-story wooden house.

FIG. 10 shows a state in which the metal fittings for reinforcing a building structure according to the present invention are applied to a three-story wooden house as indicated by thick lines. In addition to these, as shown in FIG. 10, by separately applying a reinforcing metal fitting between the foundation and the base B and between the girder on the uppermost floor and the hut portion R, such a house can be provided from the base via the wall surface. Since the hut portion is firmly and integrally connected, both the earthquake resistance and the wind pressure resistance can be greatly improved, and a solid multi-story wooden building can be obtained.

[0045]

According to the metal fittings for reinforcing a building structure according to the present invention, it is possible to effectively reinforce a building without requiring a large gap for installation and without increasing the number of man-hours. In addition, since the linear tension member, which is the longest member constituting the reinforcing bracket, is flexible, it can be manufactured, stored, transported, and so on.
This is advantageous in all areas such as temporary storage at the site, and enables strong building reinforcement while reducing overall costs.

According to the reinforcing method using the metal fittings for reinforcing a building structure according to the present invention, the linear tension member occupying most of the length is flexible, and the tension can be adjusted afterwards. Therefore, there is no particular difficulty in attaching a rigid member as a whole at the time of attachment, and optimum reinforcement conditions can be achieved by adjusting the tension adjusting member afterwards. Therefore, no special skill is required for the installation work, and after one installation is completed, the coordinator can carry out the optimal adjustment while planning the entire situation, and from this viewpoint, a small number of man-hours is sufficient. It can be expected that a great reinforcing effect is obtained.

Further, since the building structure reinforcing metal fitting according to the present invention includes a tension adjusting member, fine adjustment can be performed even when the ground is irregularly settled due to uneven settlement of the ground or other secular changes. Is performed, and the effect of being able to easily repair is also obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a building structure reinforcing metal fitting according to the present invention.

FIG. 2 is a front view (A), a side view (B), and a plan view (C) showing a first configuration example of a connection attachment member of a building structure reinforcing bracket according to the present invention.

FIG. 3 is a plan view (A) showing a configuration example of a blade member of a building structure reinforcing bracket according to the present invention, and a plan view (B) showing the shape of another type of bolt.

FIG. 4 is a plan view illustrating a configuration example of a tension adjusting member of the building structure reinforcing metal fitting according to the present invention.

FIG. 5 is a plan view (A) and a side view (B) showing a connected state of the linear tension members of the building structure reinforcing metal fitting according to the present invention.
It is.

FIG. 6 is a plan view showing a second configuration example of the connection mounting member of the building structure reinforcing bracket according to the present invention.

FIG. 7 is a plan view (A) and a side view (B) showing a third configuration example of the connection attachment member of the building structure reinforcing metal fitting according to the present invention.

FIG. 8 is a plan view showing a fourth configuration example of the connection attachment member of the building structure reinforcing bracket according to the present invention.

FIG. 9 is a front view showing a construction example of reinforcement work using the building structure reinforcing metal fitting according to the present invention.

FIG. 10 is a front view showing a construction example of a reinforcement work including a foundation portion and a hut portion of a building structure using the building structure reinforcing metal fitting according to the present invention.

[Explanation of symbols]

 12, 22, 32, 42 Connection mounting member 13 Blade member 13b Bolt 13e Glass rod 14 Tension adjusting member 14b Bolt 16 Linear tension member (wire rope) 17 Wire connector C Structural material B Base R Shed portion

Continued on the front page F term (reference) 2E002 EB12 FA03 FA09 LA01 LA02 LA03 LB02 LB03 LB04 LB14 LC02 MA04 MA12 MA13 2E125 AA04 AA13 AA18 AA33 AB12 AC23 AG12 BA53 BA56 BB06 BB09 BB11 BB22 BB35 BC25 EA01

Claims (9)

[Claims] A first connection mounting member (12, 22, 32, 42) attachable to a required portion of a building structure.
And at least one of a first connection attachment member, which is swingably connected to a part of the first connection attachment member, and has a mechanism capable of adjusting tension.
Three tension adjusting members (13, 13b, 14, 14b);
A second connection mounting member (12, 22, 32, 42) attachable to a required portion of the building structure, and a connection between a part of the second connection mounting member and the tension adjusting member. And a linear tension member (16) having a desired length. 2. The first connection mounting member (12, 2).
2, 32, 42) and the second connection mounting member (1
2. The building structure reinforcing bracket according to claim 1, wherein (2, 22, 32, 42) are members of the same type. 3. The first connection mounting member (12, 2).
2, 32, 42) and the second connection mounting member (1
2. The building structure reinforcing metal fitting according to claim 1, wherein (2, 22, 32, 42) are members of different types. 4. The building structure reinforcing bracket according to claim 1, wherein the linear tension member is a wire rope having a desired thickness and strength. 5. The structure according to claim 5, wherein said first and second connection mounting members (12, 22, 32, 42) are provided with a bolt / nut and / or a nut passing through an appropriate portion of said structural material. 5. The building structure reinforcing metal fitting according to claim 1, wherein the structural material is fixed by a tenon / mortise formed between the structural members. 6. 6. The first and second connection mounting members in a building structure reinforcing bracket in which a first connection mounting member, a tension adjusting member, a linear tension member, and a second connection mounting member are connected in series. By arranging at least one of the diagonal positions in the square portion of the building structure, it functions as a brace and / or a building member falling-off preventing means, and achieves a desired square state while adjusting the respective tension adjusting members. Characteristic method of reinforcing building structures. 7. The method for reinforcing a building structure according to claim 6, wherein the reinforcing method is applied to a vertical rectangular portion of the building structure. 8. The method according to claim 6, wherein the reinforcing method is applied to a horizontal rectangular portion of the building structure. 9. The method according to claim 6, wherein the reinforcing method is applied over both a vertical rectangular portion and a horizontal rectangular portion of the building structure.