JP2839846B2 - Reinforcement structure of wooden building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for a wooden building, and more particularly to a two-story wooden building.

[0002]

2. Description of the Related Art Conventionally, in a wooden building, a plurality of through pillars are erected on a foundation, and a frame or a beam is horizontally provided on the basis of the pillars to form a frame. And to reinforce each of these components,
For example, fire beams or stakes were used. Of these, fired beams are used as reinforcements to prevent the deformation of the surface structure that is formed horizontally by the girder and beams, but the usual girder, girder,
Or, in the corner of the surface structure constituted by beams and the like, provided diagonally with respect to these components,
It was a relatively short beam with fixed corners. Also,
Placing the floorboard on the floor also prevented the deformation of the horizontal surface structure.

[0003]

However, in the structure of the blown beam as described above, the angle of each corner of the surface structure of the blown beam, which is constituted by a girder, a girder or a beam, is kept constant. It is based on the idea that this surface structure does not deform if it is leaning, and the force that actually acts on the building due to an earthquake or strong wind is complicated, and it is not very effective when it acts in the so-called twisting direction. It was not something. Particularly, in a two-story wooden building, the frequency of acting in the twisting direction is high. Also,
Since the center of the long girder, girder, or beam is not reinforced, when a lateral force is applied, the center of these girders will be easily bent, However, the principle of leverage using the through column as a fulcrum works to amplify the force on the blown beam, so that the opposite effect is given. Moreover, such power
The intermittent repetitive action breaks the fired beam or creates a slight gap between the fired beam and the girder, reducing the reinforcing effect by half.
On the other hand, floor boards on the floor are primarily intended to support the floor, and there is no problem of expecting the side effect of sufficiently preventing deformation against horizontal lateral force. Was.

[0004] In view of the above points, an object of the present invention is to provide a reinforcement structure for a wooden building, which can sufficiently reinforce a horizontal structure.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a two-story wooden building having a two-story wooden structure between a horizontal square frame having a horizontal side as a side between a first-floor ceiling and a second-floor floor.
The beams are laid horizontally to form a plurality of small quadrilateral frames.
A fire beam is laid diagonally on each of the small quadrangular frames, and the intersection of the fire beam and the second floor small beam provided on the trunk and the second floor large beam is fastened. The gist is a reinforcement structure of a wooden building, which is characterized in that:

[0006]

[0007]

[0008]

[0009]

[0010] The fire striking beam has a tenon structure at its end face, and a mortise that fits with the tenon is provided at a position where the tenon and the second-story giant beam are in contact with the striking beam. Preferably. In addition, it is preferable that a bolt be inserted into a portion where the end face of the fired beam abuts on the trunk and the second-story large beam, and the bolt be fastened with a nut. It is preferable that a bolt is inserted into a location where the fired beam and the second-order small beam intersect, and the bolt is fastened with a nut.

According to the present invention, a fire beam is cut in advance between a first-floor ceiling and a second-floor floor of a two-story wooden building to a diagonal length of a horizontal rectangular frame whose side is a trunk. When this fired beam is laid horizontally in the diagonal direction of the rectangular frame, the flesh of the fired beam at the position where the fired beams intersect with each other
A plane part cut in a slanted shape with respect to the longitudinal direction so as to make the thickness half, and both ends of the blown beam can abut against the girth, and a tenon protruding near the center of the plane part On the other hand, at a predetermined position of the girder to which this flat part is to be brought into contact, a mortise is provided to fit a tenon provided on both end flat parts of the batter, and the flat part and the girder of the batter are provided. Abutting the mortise of the blown beam into the mortise of the girth while abutting on the girder, laying the bracelet horizontally, and forming a through hole common to the batter and the girder at the abutting part, A bolt penetrating the inside of the hole is inserted and fastened with a nut, and a common through hole is drilled at a location where the fire beam and the second-order beam intersect,
The gist is a reinforcement structure for a wooden building, wherein a bolt penetrating through the through-hole is inserted and fastened by a nut.

[0012]

[0013]

According to the present invention having the above-described structure, a relatively long fired beam is incorporated at an angle with respect to the girth and the like, and is further tightened at the intersection with the second floor beam. As a result, the horizontal structure can be prevented from being deformed not only when a simple load is applied but also when a complicated load is applied. Also, since the abutment between the battered beam and the girder or the intersection between the battered beam and the second floor beam is firmly tightened with bolts, even if a large amount of load is received, it will be There is no gap or the like, and reinforcement can be performed for a long period of time.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. Since the present invention relates to the structure of a wooden building, first, the general structure of the wooden building will be described. As shown in FIG. 1, a whole frame 1 of a two-story wooden building is provided with a plurality of through columns 2 from the floor on the first floor to the roof, and each of these through columns 2 has a building. The horizontal girder 3a, 3b in the girder direction and the horizontal girder 4a, 4b in the inter-beam direction are fitted. Then, the rectangular frame having the sides 3a, 3b, 4a, and 4b as sides is constituted horizontally. The trunks 3a, 3b, 4a, 4b provided at this time are all located between the ceiling on the first floor and the floor below the second floor. Further, between the two body inserts 4a, 4b in the direction between the beams, second-order beams 5a, 5b, 5c parallel to the sparging direction are fixed.
a, 4b, and the second floor beams 5a, 5b,
It supports a joist (not shown) provided directly to 5c, and constitutes the second floor under the floor.
The second-floor beams 5a, 5b, 5c, joists and the like are not exposed from the second floor by the floor covering and from the second floor by the ceiling covering. Also,
Since such second floor beams 5a, 5b, 5c and joists are provided for each room, the range of the above-described square matches the size of each room on the first floor and the second floor.

The present invention relates to a fire beam provided to reinforce the horizontal rectangular frame in a wooden building having such a structure, and to a first example based on FIGS. 1 to 3. An example will be described. This embodiment, as already shown in FIG. 1, is provided in a rectangular frame which is horizontally formed between the ceiling on the first floor and the floor below the second floor, and has a fire beam in a diagonal direction thereof. 6a, 6b. Here, the rectangular frame formed in the horizontal direction is, as shown in FIG.
The through pillars 2 are located at the four vertices, and the body inserts 3a, 3b in the sparging direction and the body inserts 4a, 4b in the inter-beam direction constitute sides facing each other in parallel. Then, three second-order beams 5a, 5b, 5c are provided so as to be parallel to the body inserts 3a, 3b in the girder direction. In this state, the lengths of the body inserts 3a and 3b in the spar direction and the body inserts 4a and 4b in the inter-beam direction are the same. That is, a square is constituted by the four barrel inserts 3a, 3b, 4a, 4b. Therefore, the fire beams 6a and 6b provided in the diagonal direction are each connected to the trunk 3a,
Each has an angle of 45 degrees with respect to 3b, 4a, and 4b. In addition, the fire beams 6a, 6b
Intersects with the three second-order beams 5a, 5b, 5c at three places, and the two blow beams 6a, 6b intersect at an intermediate position. Fire beams 6a, 6b and second-order beams 5a, 5
The b and 5c are fastened by a fastening tool (bolt) 7, and at the crossing portion, as shown in FIG. 3, through holes 8 and 9 common to both are bored. The bolt 10 is inserted from above the beam 5a, and
It is fastened by a nut 12 via a washer 11 from underneath a and 6b. Further, as shown in FIG. 4, the locations where the two fire beams 6a, 6b intersect are the fire beams 6a, 6b.
b. The striking beam 6 passing therethrough so that the thickness of b
The lower part of “a” and the upper part of the fire beam 6b passing below are cut out, so that the thickness of the crossed part is the same as the other parts. On the other hand, a common through-hole 13 is formed at a portion where both the blow beams 6a and 6b intersect, and a hole 1 is provided in the upper blow beam 6a such that the head of the bolt is submerged.
4 are provided. Then, a bolt 15 is inserted into the through hole 13 from the hole 14 and a nut 17 through a washer 16 is provided on the lower surface of the lower blow beam 6b.
Is fastened by Furthermore, fire beams 6a, 6b
5 is fixed to the body inserts 3a, 3b, 4a and 4b.
As shown in the figure, the end portion of the blow beam 6b is cut obliquely from both sides, and a flat portion that can abut the barrel insert 3a and a barrel insert 4a.
and a flat portion that can abut against b. Both flat portions are provided with tenons 6c and 6d protruding therefrom. Also,
The mortises 3a and 4b are provided with mortises 3e and 4e to be fitted into the mortises 6c and 6d, respectively.
The striking beam 6b can be fixed to a and 4b. Furthermore, in order to make such fixing firm, it is fastened by bolts and nuts. That is, one side of the fired beam 6b is cut out, and a surface portion 6e parallel to the side surface of the trunk 4b is provided. A common through hole 18 penetrating from the parallel surface portion 6e to the fire beam 6b and the trunk insert 4b is formed, and a long bolt 19 is inserted through the through hole 18 and the above-described flat surface is formed. It is fastened by a nut 21 via a washer 20 at the portion 6e. In addition, tenons 3f,
4f is provided with a mortise 2a, 2b in the through column 2, and the tenons 3f, 4f of the trunks 3a, 4b are inserted and fitted into the mortise 2a, 2b of the through column 2.
Further, at the fitting portion between the through pillar 2 and the body inserts 3a, 4b, the corner of the through pillar 2 projects, but if the sharp end of the blow beam 6b abutting on this portion is cut off to be able to engage, The pointed end of the beam 6b is in a state of only contacting the through column 2.

Next, a second embodiment will be described. In the present embodiment, as shown in FIG.
a, 103b, 104a, and 104b constitute a rectangular frame having sides as the sides.
3a, 103b are body inserts 104a, 104b in the direction between beams.
This is for the case of a longer rectangle. In this embodiment, a large beam 105d and small beams 105a, 105b, 105c are used as the second floor beams, and the large beam 105d is provided in the direction between the beams. The position where the large beam 105d is provided is away from one of the trunks 104a in the interbeam direction by the same length as the length of the trunks 104a and 104b in the interbeam direction. As a result, the two barrel inserts 103a and 103b
And one of the beams 104a in the direction between the beams, and the girder 105d
Thus, a square is formed. With respect to the square configured in this manner, similarly to the first embodiment, the fire beams 106a and 106b are
3a, 103b, and 104a, and erected at an angle of 45 degrees with the blow beams 106a, 106b and the small beams 10a.
5a, 105b, and 105c, where they intersect with each other with bolts 107.
It is also to be fastened at the intersection of a and 106b. In addition, the other side beam between the beams 104b,
A girder 105d and two girder inserts 103a,
The small (left-hand side in the figure) rectangular portion constituted by the main beam 103b is moved from the portion in which both ends of the large beam 105d are fixed to the beam inserts 103a and 103b in the girder direction to the other beam insert 104b in the other beam direction. Close beam 1
In the range up to the portion where 05a and 105c are fitted,
Short fire beams 106a ', 106b' are suspended. Thereby, each of the barrels 103a, 103
b, 104a, 104b are replaced with fire beams 106a, 106
b, 106a 'and 106b' can be reinforced.

Next, a third embodiment will be described. This embodiment is also the same as the second embodiment, and relates to a case where, as shown in FIG. 7, the body inserts 203a and 203b in the spar direction are longer than the body inserts 204a and 204b in the interbeam direction. . In the present embodiment, the fire beam 20
Reference numerals 6a and 206b denote trunks 203a, 203b and 204.
It does not have a 45 degree angle with respect to a and 204b, and fire beams 206a and 206b are provided in a diagonal direction of a rectangle. And in this case, the second floor beam 2
05a, 205b and 205c are the same as in the first embodiment.
Three are provided in the girder direction, and the fire struts 206a,
The fastening at the position intersecting with 206b is the same as in the first embodiment. The structure in which the blow beams 206a, 206b are fitted to the body inserts 203a, 203b, 204a, 204b, and the fastening at the point where the two blow beams 206a, 206b intersect are the same as in the first embodiment.

Next, a fourth embodiment will be described. This embodiment is also the same as the third embodiment, and relates to a case where, as shown in FIG. 8, the inserts 303a, 303b in the spar direction are longer than the inserts 304a, 304b in the interbeam direction. . In the present embodiment, the fire beam 30
6a and 306b are not provided in the diagonal direction of the rectangle, but the body inserts 303a, 303b, 304a and 304b
Has an appropriate angle with respect to. And these fire beams 306a and 306b are the second floor beams 305.
a, 305b, and 305c, and are fastened by bolts 307 at these locations. In this embodiment, the second floor beams 305a,
305b and 305c are provided in the direction between the beams,
In the case of being provided in the girder direction, the fire beams 306a, 30
6b can be changed.

Next, a fifth embodiment will be described. This embodiment is a slightly modified version of the second embodiment. First, as shown in FIG.
Reference numerals 3a and 403b denote body inserts 404a and 404b in the direction between beams.
This is for the case of a longer rectangle. Then, as in the second embodiment, the second floor beams are composed of the large beams 405d and the small beams 405a, 405b, 405c, 405a ', 40.
5b 'and 405c'. At this time, the large beam 405d is provided at the center position of the beam 403a, 403b in the interbeam direction, and the small beam 405a, 4
05b, 405c, 405a ', 405b', 405
c ′ is the girder 405d and the two trunks 404 in the direction between the beams.
a, 404b, three in the carry direction. Thus, two small rectangles are formed by the girder 405d. Then, similarly to the third embodiment, the fire beams 406a, 406b, 4
06a 'and 406b' are provided.
In this case, a total of four fire beams are used. In addition, the fitting at each crossing point and the body insertion is the same as any of the above.

Of course, various embodiments can be adopted without departing from the spirit of the present invention. For example, instead of using bolts and nuts as a method for fastening, other things may be used, and the names of through beams, trunks, second floor beams, etc. are used as each component. However, even if these names are different, those having the same purpose are not limited to members having the same name. Further, in the above embodiment, the description is made in the distinction between the girder direction and the beam-to-beam direction. However, this is for the convenience of description, and the same is true even if the directions are reversed. It is clear from the spirit of the invention. Further, in the first embodiment, the second embodiment, the fourth embodiment, or the fifth embodiment, a bolt and a nut are used at a place where two blow beams intersect to fix both the blow beams. Although it is not fastened to the second floor beam at this point,
In the case of an even number of second floor beams, for example, it is considered that the intersection of both battered beams does not necessarily correspond to the intersection of the second floor beam and the battered beam, It is considered that it is necessary and sufficient if two fire beams are fixed at this location because they are fastened. Naturally, it is not necessary to fasten the second floor beam at this location. It does not do.

[0021]

According to the present invention, a two-story girder is suspended between a pair of horizontal square frame members having a horizontal side as a side between a first floor ceiling and a second floor below a two-story wooden building. Te
A small quadrilateral frame is constructed and this small quadrilateral
A wooden building characterized in that a fire beam is traversed diagonally for each of the frame bodies, and a portion where the second-story small beam provided on the trunk and the second-story large beam intersects with the above-mentioned fire beam is fastened. since the reinforcing structure and spirit, the
If the square frame with the side of the girth is large, copy this
Can be divided into a small number of quadrilateral frames.
Reinforcement with fire beams for each quadrilateral frame
And an effective reinforcing structure can be obtained. Ma
Were, becomes the angle brace beam is secured by a second-order small beams, when the load on the angle brace beam is applied, the load can be dispersed on the second floor small <br/> beam, so as not large weight load only angle brace beam can do.

[0022] Further, the fire striking beam has a structure in which a tenon is provided at an end face thereof, and a tenon hole for fitting the tenon is provided at a position of the trunk and the second-story giant beam which abuts on the striking beam,
By fitting the two, it is possible to easily attach the fired beam, and at the same time, insert a bolt into a portion where the end face of the fired beam comes into contact with the trunk and the second-story large beam, and insert the nut. As a result, the mortise can be firmly fixed by fitting the tenon and temporarily suspending the tenon, and then tightening the bolt. Further, a bolt can be inserted into a place where the fired beam and the second-order small beam intersect with each other and fastened with a nut, so that the fired beam can be fixed to the second-order small beam by a simple method. It is.

[0023]

[0024]

According to the present invention, a fire beam is cut in advance between the ceiling of the first floor of a two-story wooden building and the lower floor of the second floor to a diagonal length of a horizontal rectangular frame whose side is the trunk. When this fired beam is laid horizontally in the diagonal direction of the rectangular frame, the flesh of the fired beam at the position where the fired beams intersect with each other
A plane part cut in a slanted shape with respect to the longitudinal direction so as to make the thickness half, and both ends of the blown beam can abut against the girth, and a tenon protruding near the center of the plane part On the other hand, at a predetermined position of the girder to which this flat part is to be brought into contact, a mortise is provided to fit a tenon provided on both end flat parts of the batter, and the flat part and the girder of the batter are provided. Abutting the mortise of the blown beam into the mortise of the girth while abutting on the girder, laying the bracelet horizontally, and forming a through hole common to the batter and the girder at the abutting part, A bolt penetrating the inside of the hole is inserted and fastened with a nut, and a common through hole is drilled at a location where the fire beam and the second-order beam intersect,
Since the gist is a reinforcement structure of a wooden building, which is characterized in that a bolt penetrating through the through hole is inserted and fastened by a nut, when a fire beam is to be provided,
First, the mortise of the blown beam is inserted into the mortise of the bobbin, and then the blown beam and the bobbin can be firmly tightened with bolts and nuts. Reinforcement by beams can be sufficient.

Further, at the place where the fire beams provided in the diagonal direction intersect, the upper and lower steps do not occur, and the same condition can be obtained at any position of the lower surface of the second floor beam and the upper surface of the fire beam. , therefore, it can be made uniform intensity to fasten the angle brace beam and second floor beams.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing the structure of a wooden building.

FIG. 2 is an explanatory diagram of the first embodiment.

FIG. 3 is a sectional view taken along the line II.

FIG. 4 is a sectional view taken along line II-II.

FIG. 5 is an enlarged partial cross-sectional view of a fitting portion of a blow beam.

FIG. 6 is an explanatory diagram of the second embodiment.

FIG. 7 is an explanatory diagram of a third embodiment.

FIG. 8 is an explanatory diagram of a fourth embodiment.

FIG. 9 is an explanatory diagram of a fifth embodiment.

[Explanation of symbols]

1 Whole frame of wooden building 2 Through pillar 2a, 2b Mortise 3a, 3b, 103a, 103b, 202a, 203
b, 303a, 303b, 403a, 403b Inserting in the girder direction 3e Mortise hole 3f Mortise 4a, 4b, 104a, 104b, 204a, 204
b, 304a, 304b, 404a, 404b Beam insertion direction 4e Mortise hole 4f Mortise 5a, 5b, 5c, 205a, 205b, 205c, 3
05a, 305b, 305c Second floor beams 105a, 105b, 105c, 405a, 405b,
405c, 405a ', 405b', 405c 'Small beam 105d, 405d Large beam 6a, 6b, 106a, 106b, 106a', 106
b ′, 206a, 206b, 306a, 306b, 40
6a, 406b Fire beam 6c, 6d Mortise 6e Plane part 7, 107, 207, 307, 407 Bolt 8, 9 Through hole 10 Bolt 11 Washer 12 Nut 13 Through hole 14 Hole 15 Bolt 16 Washer 17 Nut 18 Through hole 19 Bolt 20 Washer 21 Nut

Claims (5)

(57) [Claims] 1. A horizontal rectangular frame having a trunk as a side between a first floor ceiling and a second floor below a two-story wooden building.
The second floor girders are laid across the opposite trunks of the
Composes a quadrilateral frame and that of this small quadrilateral frame
A fire beam is laid across each diagonally ,
A reinforcing structure for a wooden building, wherein a crossing point between a small beam provided on a girth and a large beam on the second floor and the fire beam is fastened. 2. A structure in which a tenon is provided on an end surface of the blown beam, and a mortise for fitting the tenon is provided at a position where the tenon and the second floor large beam are in contact with the tenon. The reinforcement structure for a wooden building according to claim 1, which is worn. 3. The end face of the blow beam, the trunk, and the second floor large
Attach the bolt to the part where the beam contacts,
3. The reinforcing structure for a wooden building according to claim 2, wherein the structure is tightened by a nut. 4. The reinforcing structure for a wooden building according to claim 1, wherein a bolt is inserted into a place where the fired beam and the second floor small beam intersect, and the bolt is fastened with a nut. 5. A horizontal square having a trunk as a side between a first-floor ceiling and a second-floor floor of a two-story wooden building in advance.
Cut the fired beam to the diagonal length of the
When the beam is laid in the diagonal direction of the square frame,
Halve the thickness of the striking beam at the position where the struts intersect
So that both ends of the blow beam can abut against the girdle.
To form a flat part cut obliquely to the longitudinal direction.
And a tenon protruding near the center of this flat part
And, on the other hand, a predetermined
At the position, fits with the tenon
A mortise, and align the plane part of
Insert the tenon of the blown beam into the tenon
Traverse the battered beam, and
Drill a common through hole with
Insert bolts that penetrate through holes and tighten with nuts
In addition, in the place where the fired beam and the second floor beam intersect
Drill a through hole common to both, and
Insert a bolt that penetrates inside and tighten with a nut
Reinforcing structure of the wooden building that characterized in that it comprises.