JP2001329611A - Connection structure of column and beam of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form the connecting section of a column and a beam in pin- connection, and to shorten the buckling length of the column. SOLUTION: The intermediate section of the column and the intermediate section of the beam are connected by knee braces 18 in the vicinity of the connecting section 16 of the column 11 and beam 12 of the building in an attic space 15, and the connection structure is formed in rigid joint by the connecting section of the column and the beam and the whole sections joined by these column and beam and the knee braces. Accordingly, the connecting section of the column and the beam can be formed in pin-connection, and the buckling length of the column can be shortened. When at least a part of a plurality of the knee braces is made of dead soft steel, a simple vibration control frame at a low cost is enabled as the buckling length of the column 11 is left as it is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between columns and beams of a building.

[0002]

2. Description of the Related Art FIG. 1 shows an example of a connection structure between a pillar and a beam of a building such as a research laboratory or an IC factory, which is generally known in the prior art. In the figure, reference numeral 1 denotes a column, 2 denotes a beam, 3 denotes a ceiling, and 4 denotes a slab. In this type of building, a large space is formed in a ceiling space 5 surrounded by a ceiling 3 and a slab 4. This is because a large-diameter duct is housed in the space above the ceiling in order to supply a large amount of clean air to the indoor side, and to discharge air contaminated in the room to the outside.

[0003]

However, the conventional structure for connecting columns and beams of a building as described above has the following problems.
That is, in the case of a building having a long span, a truss structure beam 2 may be used, but in the case of a building having a short span, it is general that the column 1 and the beam 2 have a single-frame structure. . In this case, since the connection portion between the column 1 and the beam 2 has a butted structure, the structure itself is complicated, and the construction is troublesome. In addition, the buckling length of the column becomes longer and the strength is inferior to that, and there is a problem that the diameter of the column becomes larger to make up for it. In addition, since the height to the beam is high, there has been a problem that interlayer deformation is increased.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to simplify a construction by connecting a connecting portion between a column and a beam by using a pin. It is an object of the present invention to provide a connection structure of columns and beams of a building that can shorten the buckling length of the building. In addition, it is another object of the present invention to provide a simple and inexpensive connection structure between pillars and beams having a vibration damping action.

[0005]

According to a first aspect of the present invention, there is provided a method for manufacturing a vehicle, comprising: an intermediate portion between a pillar and a beam near a connecting portion between a column and a beam of a building; It is characterized by being connected by the direction. The invention according to claim 2 is characterized in that the keeper is housed inside a space above the ceiling. The invention according to claim 3 is characterized in that the space above the ceiling also serves as a space for storing equipment related to equipment. The invention according to claim 4 is characterized in that there are a plurality of the above-mentioned tools, and at least some of them are made of extremely mild steel.

According to the present invention, since the intermediate portion of the pillar and the intermediate portion of the beam near the connecting portion of the column and the beam of the building are connected by the direction, the connecting portion of the column and the beam and the connecting portion between them are formed. A rigid joint is formed by the entire portion joined by the stick. For this reason, the connecting portion between the column and the beam can be formed as a pin connection, the buckling length of the column is shortened, and the interlayer deformation is reduced.
In addition, if at least a part of the plurality of directions is made of ultra-mild steel, the direction made of ultra-mild steel will function as a damper, and the connection structure between the column and the beam acts as a vibration damping frame. .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a sectional view showing a connection structure between pillars and beams of a building according to the present invention. In the figure, reference numeral 11 denotes a pillar, 12 denotes a beam, 13 denotes a ceiling, and 14 denotes a slab. In this building, the space above the ceiling 15 surrounded by the ceiling 13 and the slab 14 has a large capacity, which is also used as a space for storing ducts.

The connecting portion 16 between the column 11 and the beam 12 is connected by a pin using, for example, a gusset 17 or the like. That is, for example, a gusset is fixed to a pillar by welding or the like, a beam is overlapped on the gusset, and a pin is connected by bolt connection. Further, an intermediate portion near the connecting portion 16 between the column 11 and the beam 12 and below the connecting portion 16 of the column 11 and an intermediate portion closer to the center of the beam than the connecting portion 16 of the beam 12 are closer to each other. Are connected by a forehead 18. The connection method between the stake 18 and the intermediate portion of the column 11 or the intermediate portion of the beam 12 is, for example, a rigid joint in which a joining plate is extended from the column 11 or the like and the end of the sway is welded thereto, It may be a pin joint for connecting the beam 12 to a joint plate extending from the column 11 or the like by a bolt or the like. In short, pillars 11 and beams 12
It suffices if the middle part of is connected. Further, the guide 18 is housed in the space under the ceiling 15 so as not to be exposed downward from the ceiling 13.

Further, there are a plurality of the guides 18 corresponding to the number of the beams 12, at least a part of which is made of extremely mild steel,
For example, it is made of extremely low yield point steel made of steel having an extremely low yield point. It is needless to say that all of the plurality of members 18 may be made of extremely mild steel, and one of them may be made of extremely mild steel. In short, the number and position of the ultra-mild steel slabs may be determined from the balance between the vibration damping action of the ultra-mild steel and the strength as the slab.

According to the connection structure between the pillar and the beam of the building having the above-described structure, the pillar 11 and the beam 12 are directly pin-connected by using a gusset or the like, and the intermediate portion of the pillar 11 and the beam 12 are connected. Since the intermediate portion is connected by the guide 18, the column 11 and the beam 12 are rigidly joined when viewed from the entire joint. In other words, the bending stress between the column 11 and the beam 12 is obtained by the orientation 18, so that it is sufficient for the direct connection portion 16 between the column 11 and the beam 12 to be pin-coupled. For this reason, the structure of the direct connecting portion 16 between the column 11 and the beam 12 can be simplified. As shown in FIG. 2, the buckling length L of the column 11 is from the lower end of the guide 18 to the FL, which is much shorter than that of the related art. For this reason, a great increase in strength can be expected, and in order to obtain the same level of strength as before, the column diameter can be reduced.

Further, since at least a part of the plurality of stakes 18 is made of ultra-mild steel, the stake 18 made of ultra-mild steel functions as a damper in the event of an earthquake. A simple and inexpensive vibration control frame can be realized while keeping the buckling length of 11 short.

It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately designed and modified without departing from the spirit of the invention. For example, in the above embodiment, the pillar 11
Are provided separately for the beams 12,... Extending in four directions, respectively. However, the present invention is not limited to this. Alternatively, the beams 12 may be connected together. Conversely, a plurality of guides 18 may be provided for one beam 12, thereby connecting an intermediate portion between the column 11 and the beam 12.

[0013]

According to the first aspect of the present invention, since the middle part of the pillar and the middle part of the beam near the connecting part of the pillar and the beam of the building are connected by the direction, the connecting part of the pillar and the beam and the connecting part are formed. And the entire part joined by the joints can form a rigid joint, so that the direct connection between the column and the beam can be made into a simple pin connection, so that the direct connection The parts can be simplified and the construction period can be shortened. Further, the buckling length of the column can be shortened, and the strength is increased accordingly.

According to the second aspect of the present invention, since the guide is housed in the space above the ceiling, the provision of the guide does not cause any new penetration of the ceiling or the wall surface. In addition, there is no troublesome construction part for keeping the living room below the ceiling clean. Also, the sash is not exposed to the living room space under the ceiling, which is excellent in appearance.

According to the third aspect of the present invention, the space above the ceiling is also used as a space for accommodating equipment related equipment such as a duct. In doing so, there is no hindrance to the people. In addition, 3 formed between the orientation and the pillar and beam
The square portion can also be used as a duct arrangement space.

In the invention according to claim 4, since at least a part of the plurality of guides is made of mild steel, the guide made of mild steel functions as a damper in the event of an earthquake. Thus, a simple and inexpensive vibration control frame can be realized while keeping the buckling length of the column short.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a conventional connection structure between columns and beams of a building.

FIG. 2 is a sectional view showing an embodiment of a joint structure between pillars and beams of a building according to the present invention.

[Explanation of symbols]

 11 pillar 12 beam 13 ceiling 15 ceiling space 16 pillar and beam connecting part 17 gusset 18

Continued on the front page (72) Inventor Ichiro Sato 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation F-term (reference) 2E125 AA04 AA14 AA15 AA42 AC14 AG03 AG12 AG45 AG57 BA54 BB02 BB08 BB22 BC05 BD01 BE02 BE08 BF06 CA05 CA14 CA79 CA90

Claims (4)

[Claims] 1. A joint structure between a pillar and a beam of a building, wherein an intermediate portion of the column and a middle portion of the beam near a connecting portion between the column and the beam of the building are connected together. 2. The joint structure for pillars and beams of a building according to claim 1, wherein the guide is housed inside a space above the ceiling. 3. The structure according to claim 2, wherein the space above the ceiling also serves as a space for storing equipment related to equipment. 4. The connection between a pillar and a beam of a building according to claim 1, wherein there are a plurality of said brackets, at least a part of which is made of extremely mild steel. Construction.