JP3632022B2 - Beam connection structure in buildings - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a beam connecting structure such as a large beam used for a floor of a building.
[0002]
[Prior art]
In general, in buildings such as apartment buildings, the floor that divides the space above the floor from the space below the floor is horizontally fixed and fixed in parallel to a frame such as a concrete frame. However, when the underfloor space is used as a storage space, it is necessary to open an opening that can be opened and closed by a hatch on the floor. In such a case, in order to reinforce the free end portion of the extended beam that is cut and cantilevered to form the opening, another extended beam is crossed with respect to the extended beam. And the other large beam is integrally coupled to the large beam using a connector to reinforce the large beam around the opening.
[0003]
By the way, as shown in FIG. 6, conventionally, the end of another large beam is fixed to the side surface of the large beam made of I-shaped steel using bolts and nuts, etc., using a connecting bracket such as angle steel. The technique to do is generally adopted.
[0004]
[Problems to be solved by the invention]
However, when constructing a floor, as mentioned above, joists and floor boards are laid on the plurality of large-drawn beams. The large draw beam is required to have a high level of accuracy on the upper surface. However, in the conventional method, the upper surface of the large draw beam and the upper surface of another large draw beam coupled at right angles to the upper surface of the large draw beam are accurate. It often requires matching to the same plane, that is, “heaven” alignment, but such work is cumbersome and requires skill, and then the “heaven” of those large beams has become crazy. Sometimes, there is a problem that the correction work is troublesome and requires a lot of time and labor.
[0005]
The present invention has been made in view of such circumstances, and the upper surfaces of the first beam and the second beam, which are arranged at right angles to each other, coincide with each other, i.e., "top" alignment work and subsequent correction work. It is an object of the present invention to provide a beam connecting structure in a new building which can be easily and easily performed with high accuracy to solve the above-mentioned problem.
[0006]
[Means for Solving the Problems]
In order to achieve the object, the invention according to claim 1 is used for a floor of a building or the like, and the first beam and the first beam arranged at right angles to the first beam on one plane. A beam connection structure in a building in which two beams are integrally connected with a plane T-shaped connector, wherein the first and second beams have a vertical intermediate portion and upper and lower ends of the intermediate portion. The upper and lower ends of the cross-section dovetail extending more integrally, the upper and lower ends thereof are two reference inclined surfaces inclined outward at the same angle with respect to the vertical plane passing through the intermediate portion, and The outer ends of the reference inclined surfaces are integrally connected to each other, and the lower end surface is provided. On the other hand, the connection tool is detachably fixed to the first beam and the first connection plate. The first plate is integrally coupled at right angles to the end face of the connecting plate and is detachably fixed to the second beam. The second connecting plate includes a vertical connecting portion that abuts an intermediate portion of the second beam, and extends from the upper and lower ends of the vertical connecting portion to extend the two reference inclined surfaces. A first reference plate having a reference reference inclined surface that is inclined at the same angle so as to be in close contact with one of the first connection plate and the first connection plate abutting with an intermediate portion of the first beam; And the first beam and the first connecting plate, and the second beam and the second connecting plate. Are connected to each other by bolts and nuts so as to be detachable, and according to such a feature, two beams coupled at right angles to each other are combined and connected to each other. Work can be done very easily, easily and accurately.
[0007]
In order to achieve the above object, the invention according to claim 2 is the one according to claim 1, wherein the connection fitting is positioned in the longitudinal direction with respect to the first and second beams. It is characterized by being connected in an adjustable manner. According to such a feature, the relative position adjustment of two beams connected at right angles to each other in the plane direction can be easily performed.
[0008]
Further, in order to achieve the above object, the invention according to claim 3 is the one according to claim 1 or 2, wherein the first and second beams are large beams constituting a floor, The large pull beam is fixed to a building frame, and a floor board is laid on the upper surface. According to such a feature, the two beams are connected to each other at right angles. The work can be performed easily, easily, and with high accuracy, and the flatness of the floor is increased, and the subsequent adjustment is facilitated.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0010]
First, with reference to FIGS. 1-5, the Example at the time of implementing the connection structure of the beam of this invention on the floor of the apartment house provided with the concrete frame of reverse beam structure is described.
[0011]
FIG. 1 is a partially broken perspective view of a floor having a beam connecting structure according to the present invention, FIG. 2 is an enlarged perspective view of a virtual circle surrounded by an arrow 2 in FIG. 1, and FIG. 3 is an arrow 3 in FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. 3, and FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.
[0012]
In FIG. 1, a concrete frame F constituting a skeleton of a building such as an apartment house has a horizontal frame portion Fh extending in the horizontal direction and dividing the building into a plurality of upper and lower levels, and a horizontal frame portion Fh extending in the vertical direction and adjacent thereto. And a horizontal housing portion Fh having a so-called reverse beam structure in which a plurality of reverse beams Rb are integrally projected upward on the upper surface of the slab S. . Each level of the building is partitioned into a plurality of living spaces 1 by reverse beams Rb, and floors Fr are constructed in these living spaces 1, and the floor space Cu used as a living room by these floors Fr and article storage It is partitioned into an underfloor space Cd used as a room. The underfloor space Cd functioning as an article storage room is surrounded by a reverse beam Rb on all four sides, and the entire area is configured as one wide room without a partition.
[0013]
As shown in FIG. 1, a rectangular opening 2 is opened in the middle of the floor Fr, and a person can enter the underfloor space Cd through this opening 2 and put in and out things. The opening 2 can be opened and closed by a hatch 6.
[0014]
Next, the configuration of the floor Fr provided with the beam connection structure according to the present invention will be described.
[0015]
The floor Fr is cut to form a plurality of first large pulling beams 3A arranged in parallel with each other via a support member 8 with vibration isolating rubber on the reverse beam Rb and the opening 2. In addition, a second large pulling beam 3B integrally coupled at a right angle to the free end of the first large pulling beam 3A by means of a joint Jo described later, and a plurality of the large pulling beams 3A and 3B mounted thereon. No. 4 joists and floor boards 5 laid on these joists 4 via a base plate.
[0016]
In order to support the floor Fr, there is no conventional bundle on the slab S, and noise transmitted to the floor Fr is not directly transmitted downstairs through the slab S. .
[0017]
Next, referring to FIGS. 2 to 5, a connection structure according to the present invention of the first extended beam 3A and the second extended beam 3B connected to the free end thereof at right angles will be described. .
[0018]
The first and second large draw beams 3A and 3B are both of the same structure and the same size, and are configured to maintain sufficient durability with a galvanized steel sheet. The first and second large draw beams 3A and 3B are substantially vertical intermediate portions 10 in which a plurality of mounting holes 14 (both bolts 21 to be described later pass through with a gap) are arranged at intervals in the longitudinal direction. The upper and lower ends of the intermediate portion 10 are integrally connected in a cantilevered manner from the upper and lower ends of the intermediate portion 10, and the lower end portions 11 and 12. As shown in FIG. 5, the upper end 11 is formed in two vertical symmetry with respect to the part 10, and the two reference points are inclined outward with the same angle θ with respect to the vertical plane passing through the intermediate part 10. The inclined surfaces 11a and 11b and the channel-shaped upper end surface 11c having a flat upper surface that integrally connects the reference inclined surfaces 11a and 11b, and one reference inclined surface 11a is continuous from the intermediate portion 10. And the other reference inclined surface 11b , The gap 13 between the intermediate portion 10 is formed shorter than the reference inclined plane 11a of the one having a free end is formed.
[0019]
Similarly, the lower end portion 12 includes two reference inclined surfaces 12a and 12b that are inclined outward at the same angle θ with respect to the vertical plane passing through the intermediate portion 10, and the reference inclined surfaces 12a and 12b. The lower end surface 12c has a channel-shaped cross-section with a flat lower surface that is integrally connected. One reference inclined surface 12a continuously extends from the intermediate portion 10, and the other reference inclined surface 12b has a free end. Thus, a gap 13 is formed between the intermediate inclined portion 10 and the one reference inclined surface 12a. The two reference inclined surfaces 11a and 12a and the two reference inclined surfaces 11b and 12b are opposed to each other with a space therebetween.
[0020]
The joists 4 are placed on the upper end surfaces of the first and second large draw beams 3A and 3B configured as described above.
[0021]
On the other hand, as shown in FIGS. 2 and 3, the connection tool Jo has a first connection plate 16 formed in a T shape in plan view and detachably fixed to the first large pulling beam 3A. A second connecting plate 17 integrally connected at right angles to the end face of the first connecting plate 16 and detachably connected to the second large beam 3B;
The first connecting plate 16 is bent at an angle from the upper end of the vertical connecting portion 16a that is abutted with the intermediate portion 10 of the first large pulling beam 3A, and extends upward. An upper end connecting portion 16b engaged with the side surface of the upper end portion 11 of the first large pulling beam 3A, and a lower end of the vertical connecting portion 16 are bent in a U-shape and extend downward so that the first large pulling beam 3A The lower end connecting portion 16c is engaged with the lower end portion 12. The end portions of the upper end and lower end connecting portions 16b and 16c are joined end faces 16b 'and 16c' to the second connecting plate 17, respectively. The vertical connection portion 16 is formed with a long hole 19 along the longitudinal direction of the middle portion thereof.
[0022]
On the other hand, the second connecting plate 17 extends from the upper and lower ends of the vertical connecting portion 17a that abuts the intermediate portion 10 of the second large pulling beam 3B, and the first large connecting beam 17B. In addition to being inclined at the same angle as the reference inclined surfaces 11b and 12b of the pulling beam 3B, the lower connecting reference inclined surfaces 17b and 17c, and above them, above the lower connecting reference inclined surfaces 17b and 17c. And upper end edges 17d and 17e extending substantially vertically downward, and a long hole 20 is bored in the vertical connecting portion 17a along the longitudinal direction of the middle portion thereof. The connecting reference inclined surfaces 17b and 17c are opposed to each other with a space in the vertical direction so as to correspond to the reference inclined surfaces 11b (11a) and 12b (12a).
[0023]
The connecting tool Jo composed of the first connecting plate 16 and the second connecting plate 17 is provided on the lower end edges 17d and 17e on the middle portion in the longitudinal direction of the second connecting plate 17 and on the first connecting plate 16. The joint end faces 16a 'and 16c' are abutted and joined together by a fixing means such as welding, and as shown in FIGS.
[0024]
Next, a procedure for connecting the first and second large draw beams 3A and 3B at a right angle using the connector Jo will be described.
[0025]
As shown in FIG. 2, the second coupling plate 17 of the coupling tool Jo is brought into contact with the side surface of the second large pulling beam 3B. At this time, the upper and lower connection reference inclined surfaces 17b and 17c of the second connecting plate 17 are guided along the reference inclined surfaces 11b and 12b of the second large pulling beam 3B. With respect to the second large beam 3B, the position is automatically adjusted in the vertical direction and is held at the normal vertical position. Here, if the bolt 21 is passed through the long hole 20 and the mounting hole 14 and the nut 22 is fastened to the bolt 21, the connector Jo can be fixed to the second center pulling beam 3 </ b> B at the normal center position. it can.
[0026]
Next, the inner surface of the first connection plate 16 of the connection fitting Jo is engaged with the side surface of the first large pull beam 3A, that is, the vertical connection portion 16a is connected to the intermediate portion 10 of the first large pull beam 3A. The upper end and lower end connecting portions 16b and 16c are engaged with the upper end portion 11 and the lower end portion 12 of the first large pull beam 3A (the first large pull beam 3A is placed on the lower surface of the lower end link portion 16c. The lower end surface 12c is engaged), the upper surface of the first large beam 3A is aligned with the upper surface of the second large beam 3B, and the nut 22 is attached to the bolt 21 that penetrates the long hole 19 and the mounting hole 14. Tighten. As described above, the upper surfaces of the first large draw beam 3A and the second large draw beam 3B can be made to coincide, that is, their “top” can be aligned. Thereafter, the second large draw beam 3B and the first large draw beam 3B can be aligned. Even when the pulling beam 3A is separated and then reconnected, the connecting tool Jo can be easily placed in the normal vertical position with respect to the second large pulling beam 3B by fastening the bolts and nuts 21 and 22. Positioning and fixing can be ensured, and the “top” alignment work of the first and second large draw beams 3A and 3B can be performed easily and easily, and the joists 4 and the floor board 5 are arranged on one plane. Can be laid with high accuracy.
[0027]
In addition, the two first and second extended beams arranged at right angles to each other in the A part and the B part shown in FIG. 1 can be integrally connected by the beam connecting structure according to the embodiment. .
[0028]
As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.
[0029]
For example, in the above-described embodiment, the case where the beam connection structure of the present invention is applied to the connection of the large pull beam on the floor of the building has been described. In addition, in the above-described embodiment, the case where the beam connection structure of the present invention is implemented in an apartment house having a reverse-beam structure housing has been described, but it is needless to say that this can also be implemented in other buildings such as detached houses. It is. In the above-described embodiment, the case where the coupling tool is fixed using the short reference inclined surface on the side having the gap among the pair of reference inclined surfaces of the large pull beam has been described. You may make it fix a connection tool using a reference | standard inclined surface.
[0030]
【The invention's effect】
As described above, according to the first aspect of the present invention, the first beam and the second beam arranged at a right angle to the first beam on one plane are used for the floor of the building. In a beam connection structure in a building, which is integrally connected to each other by means of a plane T-shaped connector, the work of aligning the two beams coupled at right angles to each other and connecting them together It is extremely simple, easy and accurate.
[0031]
According to the second aspect of the present invention, in the beam connection structure, the relative position adjustment of the two beams connected at right angles to each other in the plane direction can be easily performed.
[0032]
Furthermore, according to the third aspect of the present invention, it is possible to easily, easily, and accurately perform the “top” alignment operation of two large drawing beams coupled at right angles to each other in the beam connection structure. It is possible to improve the flatness of the floor and to facilitate the subsequent adjustment.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view of a floor having a beam connecting structure according to the present invention. FIG. 2 is an enlarged perspective view of a virtual circle surrounded by an arrow 2 in FIG. 4 is a sectional view taken along line 4-4 in FIG. 3. FIG. 5 is a sectional view taken along line 5-5 in FIG. 4. FIG. 6 is a perspective view of a conventional beam connecting structure.
3A 1st beam 3B 2nd beam 5 Floor board 10 Middle part 11 Upper end part 11a Reference inclined surface 11b Reference inclined surface 12 Lower end part 12a Reference inclined surface 12b Reference inclined surface 16 First connection plate 16a Vertical connection part 16b Upper end connection Portion 16c Lower end connecting portion 17 Second connecting plate 17a Vertical connecting portion 17b Connection reference inclined surface 17c Connection reference inclined surface 21 Bolt 22 Nut F Housing Fr Floor Jo Connection tool

Claims (3)

A flat T-shaped first beam (3A) and a second beam (3B) arranged at right angles to the first beam (3A) are used on the floor of a building. A beam connecting structure in a building, which is integrally connected with a connecting tool (Jo),
The first and second beams (3A, 3B) include a vertical intermediate portion (10) and upper and lower end portions (11, 11) that are integrally extended from the upper and lower ends of the intermediate portion (10). 12), and the upper and lower ends (11, 12) thereof are two reference inclined surfaces (11a, 11b, 12a) inclined outward at the same angle with respect to the vertical plane passing through the intermediate portion (10). , 12b) and the upper ends of the reference inclined surfaces (11a, 11b, 12a, 12b) are integrally connected, and have lower end surfaces (11c, 12c),
On the other hand, the connecting tool (Jo) is integrated with the first connecting plate (16) detachably fixed to the first beam (3A) and the end face of the first connecting plate (16) at a right angle. The second connecting plate (17) is detachably fixed to the second beam (3B). The second connecting plate (17) is an intermediate portion of the second beam (3B). (10) and the vertical connecting portion (17a) that is in contact with the vertical connecting portion (17a) and extended from the upper and lower ends of the vertical connecting portion (17a) to either one of the two reference inclined surfaces (11a, 11b; 12a, 12b). The connection reference inclined surfaces (17b, 17c) are inclined at the same angle so as to be in close contact with each other, and the first connection plate (16) is an intermediate portion of the first beam (3A). (10), and the upper and lower ends (11, On which is engaged in 2), it has a lower end connecting portion (16b, 16c),
The first beam (3A) and the first connecting plate (16) and the second beam (3B) and the second connecting plate (17) can be attached and detached by bolts and nuts (21, 22), respectively. A beam connecting structure in a building, characterized by being integrally connected to a beam. The building according to claim 1, wherein the connection fitting (Jo) is connected to the first and second beams (3 </ b> A, 3 </ b> B) so that their positions can be adjusted in the longitudinal direction thereof. Beam connection structure. The first and second beams (3A, 3B) are large beams constituting a floor (Fr), the large beams are fixed to a building frame (F), and a floor plate (5 3) The beam connection structure in a building according to claim 1 or 2, wherein:

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