JPH1181454A - Connecting structure for column and beam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure for a column and a beam preventing the occurrence of a post execution section when the column and beam are connected, improving an execution property, and capable of optionally setting the fitting position of the beam. SOLUTION: This connecting structure for a column 10 made of steel frame concrete or steel encased reinforced concrete and a beam 11 made of a steel frame, steel frame concrete, or steel encased reinforced concrete is provided with at least one first connecting vertical plate 13 protruded on the side face of the center steel frame 12 of the column 10 and at least one second connecting vertical plate 14 protruded on the end face of the beam 11. The first connecting vertical plate 13 and the second connecting vertical plate 14 are fixed by bolts 23, and the first connecting vertical plate 13 and the second connecting vertical plate 14 are buried in the concrete 27 of the column 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a column and a beam, and more particularly, to a steel-frame concrete structure, a reinforced steel-frame concrete structure, a mixed structure, and the like. The present invention relates to a joint structure between a column and a beam capable of improving the performance.

[0002]

2. Description of the Related Art Conventionally, when a column and a beam are connected in, for example, a reinforced steel concrete structure, as shown in FIG. 8, a central steel frame 2 of a reinforced steel concrete column 1 has a shape similar to that of the beam 3. Attach the bracket 4. Then, the ends of the bracket 4 and the ends of the beams 3 are abutted, and flat plates 5 and 6 are applied to the upper and lower surfaces of the brackets 4 and the beams 3 and fixed with bolts or joined by welding. Met. In addition, the code | symbol 7 in a figure is a reinforcing bar, 8 is concrete.

[0003]

However, in the above-described conventional column-beam joint structure, when the beam 3 is precast, the bracket 4 and the beam 3 are joined by bolts, and the column 1
There is a problem that a bolt connection zone H is required between the beam and the beam 3, and a post-constructed portion is generated. Further, at the joint between the column 1 and the beam 3, since the steel frame and the reinforcing bar are arranged in a complicated manner, there is a problem that the workability such as a reinforcing work in the joint is deteriorated.

Further, since the mounting width of the bracket 4 is limited due to the large width of the bracket 4, the mounting position of the beam is limited. An object of the present invention is to solve such a problem, to improve the workability by preventing the occurrence of a post-construction part, and to make it possible to arbitrarily set a mounting position of a beam and a column and a beam. To provide a coupling structure.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a joint structure between a column and a beam, and is configured as follows to solve the above-mentioned technical problem. That is, the present invention is a steel concrete or reinforced steel concrete pillar, steel frame,
In a connection structure with a steel concrete or reinforced steel concrete beam, at least one first connecting vertical plate projecting from a side surface of a central steel frame of the column, and at least one first projecting plate projecting from an end surface of the beam. A second connecting vertical plate, wherein the first connecting vertical plate and the second connecting vertical plate are connected by bolts, and the first connecting vertical plate and the second connecting vertical plate are connected to each other. Is characterized by being embedded in the concrete of the pillar.

In this column / beam coupling structure, a required number of bolts can be attached by elongating the first coupling vertical plate of the column and the second coupling vertical plate of the beam. Therefore, the width of the first and second connecting vertical plates can be reduced. Further, the first connecting vertical plate can be attached to an arbitrary position of the central steel frame.

The pillar may be an H-shaped steel, and a flange portion of the H-shaped steel may be used as the first connecting vertical plate. In this case, it is not necessary to use a special connecting part other than the central steel frame.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a joint structure between a column and a beam according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing a first embodiment of a joint structure between a column and a beam according to the present invention. As shown in the figure, the connection structure of the column and the beam is to connect, for example, a reinforced steel concrete column 10 and a steel beam 11 formed of, for example, H-section steel. One first projecting from the side of the central steel frame 12 formed of H-section steel
, And two second connecting vertical plates 14, 14 protruding from the end face of the beam 11.

The first connecting vertical plate 13 is erected, for example, at the center of the web 15 of the central steel frame 12, as shown in FIG. Reinforcing ribs 16 are attached to the base of the first connecting vertical plate 13. The second connecting vertical plates 14, 14 are arranged in parallel with each other so as to sandwich the web 17 of the beam 11. The distance h between the second connecting vertical plates 14 is slightly larger than the thickness t of the first connecting vertical plate 13.

The first connecting vertical plate 13 and the second connecting vertical plates 14, 14 are provided with a plurality of bolt holes 20, 21 at the same pitch in a vertical line. Further, a receiving plate 22 (FIG. 1) having an appropriate size is provided at a lower end of the first connecting vertical plate 13.

When the column 10 and the beam 11 are joined, FIG.
As shown in the figure, the first connecting vertical plate 13 of the central steel frame 12 is sandwiched between the second connecting vertical plates 14, 14 of the beam 11, and the second connecting vertical plates 14, 14 are connected to the first connecting vertical plate. It is placed on a receiving plate 22 at the lower end of the plate 13. Next, the first connecting vertical plate 13
Then, a bolt 23 is passed through the bolt holes 20 and 21 of the second connecting vertical plates 14 and 14, and a nut 24 is fastened to the bolt 23. Thus, the first connecting vertical plate 13 and the second connecting vertical plates 14 and 14 are fixed, and the central steel frame 12 of the column 10 and the beam 11 are securely connected.

Next, a reinforcing bar 25 is disposed around the central steel frame 12, and a mold (not shown) is disposed outside the reinforcing bar 25. Then, concrete 27 is cast inside the formwork. Thus, the first and second connecting vertical plates 13 and 14 are connected.
Is buried in the cast concrete 27. At this time, the end of the beam 11 is also buried in the concrete 27 of the pillar 10.

As described above, in this column / beam coupling structure, the first coupling vertical plate 13 projecting from the side surface of the central steel frame 12 of the column 10 and the second coupling vertical plate 13 projecting from the end of the beam 11. Since the pillar 10 and the beam 11 are joined by fastening the joining vertical plates 14 and 14 with the bolts 23 and the nuts 24, the first and second joining vertical plates 13 and 14 are joined together. For example, the width can be set to a size necessary for mounting only one bolt 23, and the vertical length can be set to a size capable of mounting the required number of bolts 23.

Thus, the first and second connecting vertical plates 1
Since the widths of the third and the third connecting plates 14 and 14 can be reduced, the first and second connecting vertical plates 13 and 14 can be embedded in the concrete 27 of the pillar 10. Therefore, there is no need to provide a bolt connection zone between the column and the beam as in the related art, so that post-processing is not required, thereby improving workability. Further, the first connecting vertical plate 13 can be provided at any position of the central steel frame 12, so that the beam 11 can be connected to any position of the column 10.

In the above-described first embodiment, the case where one beam 11 is connected to the column 10 has been described. However, as in the second embodiment shown in FIG. For example, two beams 31 formed of H-section steel can be combined.

In this case, the first connecting vertical plates 33, 33 are erected on both sides of the web 35 of the central steel frame 32 of the column 30, and two second connecting plates 33, 33 are provided at the ends of the beams 31, 31, respectively. Are attached in parallel to each other,
Are fixed with bolts and nuts with the first connecting vertical plate 33 sandwiched between the connecting vertical plates 34, 34. In addition, the code | symbol 36 in a figure is a reinforcing bar, 37 is concrete, 38 is a web, 3
9 is a rib.

FIG. 4 shows a third embodiment. In this case, the first connecting vertical plate 43 is erected, for example, at the center of the lower flange 40a in the figure of the central steel frame 42 formed of the H-shaped steel of the column 40. Bolt holes (not shown) are provided in the plate portions on both sides of the first connecting vertical plate 43 and the other flange 40a. At the end of each beam 41, two second connecting vertical plates 44, similarly to the first embodiment,
Attach 44.

One beam 41 sandwiches a first connecting vertical plate 43 erected on one flange 40a of the central steel frame 42 between the second connecting vertical plates 44,44. Fix with bolts and nuts. The other two beams 41, 41 are respectively connected to the second connecting vertical plates 44, 44.
In between, the plate portion of the other flange 40a is fixed with bolts and nuts. As a result, three
Individual beams 41 can be attached. Reference numeral 46 in the figure
Is a reinforcing bar, 47 is concrete, and 45 and 48 are webs.

According to the third embodiment, since the flange 40a of the central steel frame 42 is used as the first connecting vertical plate, other parts need to be prepared as the first connecting vertical plate. Therefore, the number of parts can be reduced and cost can be reduced.

FIG. 5 shows a fourth embodiment. This fourth
In this embodiment, four beams 51 are connected to the column 50, and first connecting vertical plates 53, 53 are erected on both sides of the web 55 of the central steel frame 52 of the column 50. The first connecting vertical plates 53, 53 are also provided at the center of the flange 50a.
Is established.

The ends of the four beams 51 are each 2
The second connecting vertical plates 54, 54 are attached in parallel.
Then, similarly to the first embodiment, the first and second connecting vertical plates 53 and 54 are fixed with bolts and nuts. In the drawing, reference numeral 56 denotes a reinforcing bar, and 57 denotes concrete.

FIG. 6 shows a fifth embodiment. This fifth
In this embodiment, two first connecting vertical plates 63, 63 are erected at predetermined intervals in parallel on both sides of a web 65 of a central steel frame 62 made of H-shaped steel of a column 60. Further, one second vertical connecting plate 64 is attached to each end of the two beams 61 by abutting the web 68.

Then, a second connecting vertical plate 64 is inserted between the first connecting vertical plates 63, 63 of the central steel frame 62,
Secure with bolts and nuts. Thereby, the column 60 and the beams 61 can be securely connected. In addition, the code | symbol 66 in a figure is a reinforcing bar, 67 is concrete.

FIG. 7 shows a sixth embodiment. This sixth
The embodiment of the present invention includes a steel reinforced concrete column 70,
It is to connect with the steel concrete beam 71,
90 of the central steel frame 72 formed of a round steel pipe of the column 70, for example.
Two first connecting vertical plates 73, 73 are erected in parallel at three places apart from each other at appropriate intervals.

Further, the beam 71
At the end of a central steel frame 81 made of a section steel, its web 7
8, one second connecting vertical plate 74
Attach. Note that a reinforcing plate 82 can be attached to the end of the web 78.

Then, the second connecting vertical plate 74 is inserted between the first connecting vertical plates 73, 73 and fixed with bolts and nuts.
Can be securely connected to the central steel frame 81. In this case, since the beam 71 can be precast to the immediate vicinity of the column 70, the construction is facilitated.

In the above embodiment, the first and the second
Although the case where the number of the connecting vertical plates is one or two has been described, the number of the first and second connecting vertical plates can be any number. Also, the pillar may be made of steel concrete.

[0029]

As described above, according to the column and beam connecting structure of the present invention, the first connecting vertical plate of the column and the second connecting vertical plate of the beam are used.
Since the required number of bolts can be attached by lengthening the connecting vertical plate vertically, the first and second bolts can be attached.
The first and second connecting vertical plates can be buried in the concrete of the pillars, so that the bolts to be post-constructed parts as in the prior art can be made. Since there is no need to provide a joining zone, construction is facilitated.

Further, since the first connecting vertical plate can be attached to any position of the central steel frame, the beam can be provided at any position of the column. When the central steel frame of the column is H-shaped steel and the flange portion of this H-shaped steel is used as the first vertical connecting plate, it is not necessary to use special connecting parts other than the central steel frame of the column. And cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a joint structure between a column and a beam according to the present invention.

FIG. 2 is an exploded perspective view showing a central steel frame and a beam according to the first embodiment of the joint structure of a column and a beam according to the present invention.

FIG. 3 is a cross-sectional view showing a second embodiment of the joint structure between a column and a beam according to the present invention.

FIG. 4 is a cross-sectional view showing a third embodiment of a joint structure between a column and a beam according to the present invention.

FIG. 5 is a sectional view showing a fourth embodiment of the joint structure between a column and a beam according to the present invention.

FIG. 6 is a sectional view showing a fifth embodiment of the joint structure between a column and a beam according to the present invention.

FIG. 7 is a sectional view showing a sixth embodiment of the joint structure between a column and a beam according to the present invention.

FIG. 8 is a cross-sectional view showing a joint structure between a column and a beam according to a conventional example.

[Explanation of symbols]

10, 30, 40, 50, 60, 70 Pillars 11, 31, 41, 51, 61, 71 Beams 12, 32, 42, 52, 62, 72 Central steel frame 13, 33, 43, 53, 63, 73 First Vertical plate for connection 14, 34, 44, 54, 64, 74 Second vertical plate for connection 27, 37, 47, 57, 67, 77 Concrete 40a Flange portion

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinji Kato 2-10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Corporation

Claims (2)

[Claims] 1. A joint structure between a steel concrete or reinforced steel concrete column and a steel, steel concrete or reinforced steel concrete beam, wherein at least one of the columns protrudes from a side of a central steel frame of the column. A first connecting vertical plate; and at least one second connecting vertical plate protruding from an end surface of the beam, wherein the first connecting vertical plate and the second connecting vertical plate are provided. A joint structure between a column and a beam, wherein the first and second joining vertical plates are embedded in concrete of the column by bolts. 2. The joint structure according to claim 1, wherein the central steel frame is an H-shaped steel, and a flange portion of the H-shaped steel is used as the first connecting vertical plate.