JP3527497B2 - Building reinforcement - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting and reinforcing tool for a building that reinforces a connecting portion between a pillar and a horizontal member in a building or the like.

[0002]

2. Description of the Related Art In recent years, structures such as houses are required to have a seismic design capable of withstanding a large-scale earthquake. As shown schematically in FIG.
A frame member 00 has a pillar 504 standing upright on the base 502 and a horizontal bridge member (a barrel, a beam, etc.) 506 bridged in the horizontal direction as a frame member. From the investigation of past earthquakes, it is known that most of the collapse of the building 500 is caused by the damage of the connection portion between the pillar 504 and the horizontal member 506, as shown in FIG. Reinforcement of connecting parts has become a major issue.

Particularly in recent years when the number of buildings with three or more floors has increased, as shown in FIG. 5 (C), since the connecting portion between the second floor and the third floor cannot have a through pillar structure, a horizontal bridge is provided. Material 5
The number of cases in which two columns 504A and 504B are connected in series with 06 interposed therebetween is increasing, and the reinforcement of the connecting portion is an even greater issue.

As a structure for reinforcing the connecting portion between the column and the horizontal member in this way, a so-called brace is known in which connecting metal fittings are stretched diagonally between the connecting portions.

[0005]

However, since the brace is to stretch the connecting metal fitting over a wide range of the side surface of the building, it is not possible to reinforce it in a limited space and block the window or the like. There is a drawback that it ends up. Further, the brace can function so as not to cause distortion between the columns and the horizontal members, but does not have a function of connecting and reinforcing two columns sandwiching the horizontal members. Therefore, there is a problem that the strength of this portion cannot be improved even if the brace is used.

[0006] Therefore, the present invention provides a connection reinforcing tool for a structure which can effectively reinforce in a limited space, and which has both a function of a brace and a function as a through column. The purpose is to do.

[0007]

In order to achieve the above object, the present invention is a connecting and reinforcing tool for reinforcing a connecting portion between a pillar of a building and a horizontal member, which is attached along a side surface of the pillar. A first shaft that further extends through the horizontal member,
A pair of first fixtures for fixing each end portion of the first shaft in the longitudinal direction to the column, a second shaft penetrating the horizontal member in parallel with the first shaft, and the second shaft. A pair of second fixing tools for fixing each end in the longitudinal direction to the horizontal member, and a pair of connecting arms respectively connecting the first fixing tools and the second fixing tools. It is equipped with.

According to this structure, even when the connecting reinforcement is installed in a limited space, the first shaft, the second shaft and the connecting arm can withstand the vertical and horizontal forces. It is possible to effectively reinforce the connecting portion between the frame and the horizontal member. That is, the connecting and reinforcing tool according to the present invention has both a function as a brace and a function as a through column, whereby the connecting portion can be easily and reliably reinforced with one metal fitting.

Further, in the present invention, it is preferable that each of the first fixtures has a frame that is fitted to the pillar and a screw member that fixes the frame to the pillar.

Further, in the present invention, each end of the first shaft is threaded, and each first fixture has a screwing member that is screwed into each end of the first shaft. It is preferable.

In addition, in the present invention, it is preferable that each of the first fixtures has a pin that axially supports the end portion of each of the connecting arms.

Further, in the present invention, the pair of second fixing members are attached to the second shaft so that the pair of second fixing members sandwich the horizontal member therebetween. preferable.

Further, it is preferable that each end portion of the second shaft is threaded, and each second fixing tool has a screw member that is screwed into each end portion of the second shaft.

In addition, in the present invention, it is preferable that each of the second fixing tools has a pin that axially supports the end portion of each of the connecting arms.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below based on the illustrated embodiments. FIG. 1 is a building (for example, a house) 1 using a connecting and reinforcing tool 100 according to the present embodiment.
02 is shown. This building 102 has a foundation 10
It has four, columns 106, and a horizontal member 110. In addition, the horizontal member refers to a frame member (a barrel, a beam, etc.) that is bridged in a horizontal direction in a building. The pillar 106 has two pillars 10.
It has a structure in which 6A and 106B are combined in series with the horizontal member 110 interposed therebetween. The connecting and reinforcing tool 100 according to the present embodiment reinforces the connecting portion between the pillar 106 and the horizontal member 110.

FIG. 2 is a view showing the connection reinforcing tool 100. The coupling reinforcement 100 includes a first shaft 200 that extends further along the pillar 106 and through the horizontal member 110. The first shaft 200 is a metal shaft member having threaded parts of a predetermined length formed on both ends. A pair of upper and lower first fixtures 202 for fixing the first shaft 200 to the pillar 106 are attached to both ends of the first shaft 200 in the longitudinal direction.

At a position apart from the pillar 106 by a predetermined distance in the horizontal member 110, the second shaft 20 is parallel to the first shaft 200.
4 penetrates. The second shaft 204 is a metal shaft member having threaded parts of a predetermined length processed at both ends, and its length is shorter than that of the first shaft 200. A pair of upper and lower second fixtures 206 for fixing the second shaft 204 to the horizontal member 110 are attached to both ends of the second shaft 204 in the longitudinal direction.

Each end of the first fixing member 202 and each end of the second fixing member 206 are connected by a pair of connecting arms 208. The connecting arm 208 is an elongated metal plate. One end of the connecting arm 208 in the longitudinal direction is pivotally supported by a pin 210 provided on the first fixture 202, and the other end is pivotally supported by a pin 212 provided on the second fixture 206.

FIGS. 3A and 3B show the first fixture 20.
It is a disassembled perspective view which expands and shows the structure of 2. Since the pair of upper and lower first fixtures 202 shown in FIG. 2 have the same configuration, only the upper one is shown in FIGS. 3 (A) and 3 (B).

As shown in FIG. 3A, the first fixture 2
02 has a metal frame 300. The frame 300 has a rectangular back plate 302 that is placed against the pillar 106 (FIG. 2), and side plates 304, 306, and 308 formed along the three sides of the back plate 302. Backboard 3
A through hole 312 for inserting a screw member (lag screw) 310 is formed in 02. This through hole 3
By screwing the screw member 310 into the pillar 106 via 12, the first fixture 202 is fixed to the pillar 106. The lower side plate 308 is formed with a through hole 314 through which the upper end portion (screwed portion) of the first shaft 200 described above is inserted. By inserting the first shaft 200 into the through hole 314 and screwing a nut (screw member) 316 into the threaded portion, the first shaft 200 and the first fixture 202 are integrated.

As shown in FIG. 3B, the left and right side plates 3
Through holes 318 and 320 are formed at positions corresponding to each other in 04 and 306, and the above-described pin 210 is engaged with the through holes 318 and 320. The through holes 318 and 320 of the side plates 304 and 306 and the through holes 322 formed at the ends of the connecting arms 208 are aligned with each other, and the pins 210 are engaged with these through holes 318, 320, and 322, thereby connecting arms. 208 is attached to the first fixture 202.

FIGS. 4A and 4B show the second fixture 20.
It is an exploded perspective view which expands and shows the structure of No. 6. Since the pair of upper and lower second fixtures 206 shown in FIG. 2 have the same configuration, only the upper one is shown in FIGS. 4 (A) and 4 (B).

As shown in FIG. 4 (A), the second fixture 2
06 has a metal frame 400. The frame 400 has a rectangular bottom plate 402 that is applied to the horizontal member 110, and side plates 404 and 406 formed on two long sides of the bottom plate 402. On the bottom plate 402,
A through hole 408 for inserting the upper end portion (screw portion) of the second shaft 204 described above is formed. This through hole 408
The second shaft 204 and the second fixing tool 206 are integrated by inserting the second shaft 204 into the shaft and screwing a nut (screw member) 410 into the threaded portion. When the pair of upper and lower second fixtures 206 are attached to the second shaft 204 in this way,
The pair of second fixing members 206 sandwich the horizontal member 110 from above and below, and thereby the second shaft 204 is fixed to the horizontal member 110.

Through holes 412 and 414 are formed at positions facing each other on the left and right side plates 404 and 406, and the above-mentioned pin 21 is formed in these through holes 412 and 414.
2 is engaged. As shown in FIG. 4B, the side plate 4
Through holes 412 and 414 of 04 and 406 and the connecting arm 20.
8 through holes 416 are aligned with each other, and these through holes 41
The connecting arm 208 is attached to the second fixture 206 by engaging the pins 212 with the 2,414,416.

Next, with reference to FIGS. 2 to 4, a method of attaching the connecting reinforcing tool 100 to a building will be described. When attaching the connecting reinforcement tool 100 to a building, first, in the horizontal member 110, two through holes for passing the first shaft 200 and the second shaft 204 are bored, and one of them is formed (in the vicinity of the pillar 106). The first shaft 200 is inserted through the through hole). continue,
The pair of first fixtures 202 is attached to the pillar 106. Specifically, as shown in FIG. 3A, the first fixture 202
The screw member 310 is screwed into the column 106 through the through hole 312 of the column. Next, both ends of the first shaft 200 are fixed to the pair of first fixtures 202. Specifically, as shown in FIG. 3 (A), the threaded portion of the first shaft 200 is attached to the first fixture 2
02 through the through hole 314, and the nut 316 is screwed into the threaded portion.

Next, the second shaft 204 is inserted into the other through hole formed in the horizontal member 110, and the pair of second fixing members 206 are attached to both ends of the second shaft 204. In particular,
As shown in FIG. 4A, the threaded portion of the second shaft 204 is inserted into the through hole 408 of the second fixture 206, and the nut 410 is screwed into the threaded portion. As a result, the pair of upper and lower second fixtures 206 sandwich the horizontal member 110 from above and below, and the second shaft 204 is fixed to the horizontal member 110.

After that, the connecting arm 208 is attached to the first fixture 202. Specifically, as shown in FIG. 3B, the connecting arm 208 is positioned between the side plates 304 and 306, and the through holes 318 and 320 of the side plates 304 and 306 are formed.
Also, the pin 210 is engaged with the through hole 322 of the connecting arm 208. Then, the connecting arm 208 is attached to the second fixture 20.
Attach to 6. Specifically, the connecting arm 208 is located between the side plates 404 and 406, and the through holes 412 and 414 of the side plates 404 and 406 and the through hole 4 of the connecting arm 208 are located.
Engage pin 212 with 16.

According to the connecting / reinforcing tool 100 thus constructed, the first shaft 200, the second shaft 204, and the connecting arm 20.
8 can withstand the forces in the vertical direction and the horizontal direction, so that the column 106 and the horizontal member 110 can be effectively reinforced. Furthermore, since the connecting and reinforcing tool 100 can be installed in a narrower position as compared with bracing, it can be installed without disturbing a window or the like.

Further, the first fixing tool 202 and the second fixing tool 20.
Since 6 is configured as shown in FIGS. 3 and 4, the attachment of the connecting reinforcing tool 100 to a building is easily performed.

The embodiments of the present invention have been described above with reference to the drawings. However, it is obvious that the present invention is not limited to the matters shown in the above-mentioned embodiment, and changes and improvements thereof can be made based on the description of the claims.

For example, in the above-described embodiment, the screw member (lag screw) 310 is used to fix the first fixing member 202 to the pillar 106, but instead of the screw member 310, a length that penetrates the pillar 106. You may use the bolt of.
In this case, it is preferable that a nut is screwed to a portion that penetrates the pillar 106 of the bolt and projects.

Further, in the above embodiment, both the upper and lower pair of first fixing members 202 are screwed to the first shaft 200, but one of the first fixing members 202 is fixed to the first shaft 20.
It may be welded to zero.

Further, although the connecting / reinforcing tool 100 in the above-described embodiment has been described as being attached to the columns 106 (FIG. 1) connected in series, a normal column (for example, FIG. 5) having a structure not connected in series is used. Pillar 504 shown in (A))
May be attached to.

[0034]

As described above, according to the present invention, the vertical and horizontal forces can be endured by the first shaft, the second shaft and the connecting arm even when the connecting stiffener is mounted in a limited space. This enables effective reinforcement of the connecting portion between the column and the horizontal member. That is, the connecting and reinforcing tool according to the present invention has both a function as a brace and a function as a through column, whereby the connecting portion can be easily and reliably reinforced with one metal fitting.

[Brief description of drawings]

FIG. 1 is a view showing an example of a building to which a connecting and reinforcing tool according to an embodiment of the present invention is attached.

FIG. 2 is a diagram showing the connecting and reinforcing tool shown in FIG.

FIG. 3 is an exploded perspective view showing a configuration of a first fixing tool of the connecting reinforcing tool.

FIG. 4 is an exploded perspective view showing a configuration of a second fixing tool of the connecting reinforcing tool.

FIG. 5 is a diagram schematically showing a structure of a general building.

[Explanation of symbols]

100 connection reinforcement 102 building 106 pillars 110 Horizontal material 200 First axis 202 First fixing tool 204 Second axis 206 Second Fixing Tool 208 connecting arm 210, 212 pins 300,400 frames 310 screw member 312, 314, 318, 320, 322 through holes 316,410 nuts 408, 412, 414, 416 Through holes

Claims (7)

(57) [Claims] 1. A connecting and reinforcing tool for reinforcing a connecting portion between a pillar of a building and a horizontal member, which is attached along a side surface of the pillar and further extends through the horizontal member. 1 axis, a pair of 1st fixing tools which fix each end in the longitudinal direction of the 1st axis to the pillar, a 2nd axis which penetrates the above-mentioned cross member in parallel with the 1st axis, A pair of second fixing tools for fixing each end of the second shaft in the longitudinal direction to the horizontal member, and a pair of connecting arms for connecting the first fixing tools and the second fixing tools. And a connecting reinforcement for a structure, characterized by comprising: 2. The first fixture according to claim 1, further comprising a frame that is fitted to the pillar, and a screw member that fixes the frame to the pillar. Connection reinforcement for buildings. 3. Each end of the first shaft is threaded, and each of the first fixtures has a screw member that is screwed into each end of the first shaft. Claim 1 or 2
Connecting reinforcement for the building described in. 4. The building connection according to claim 1, wherein each of the first fixtures has a pin that pivotally supports an end of each of the connecting arms. Reinforcements. 5. The pair of second fixtures is configured to sandwich the horizontal member by attaching the pair of second fixtures to the second shaft. The connection reinforcing tool for a building according to any one of 1 to 4. 6. Each end of the second shaft is threaded, and each of the second fasteners has a screw member that is screwed into each end of the second shaft. A building reinforcement tool according to any one of claims 1 to 5. 7. The structure connection according to claim 1, wherein each of the second fixing members has a pin that pivotally supports an end portion of each of the connecting arms. Reinforcements.