JPH089281Y2 - Beam-column joint structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a tensile-bolt joint structure for a pillar / beam, and more particularly to a joint structure for a pillar / beam in which a member to which the bolt is screwed is improved.

[Background Art] Conventionally, as a joint structure of a pillar and a beam, as shown in FIG. A plurality of bolt through holes 47 are provided in the end plate 46 welded to the ends, and the pillars 41 and the beams are formed by penetrating the through holes 47 and screwing the bolts 48 into the screw holes 43 of the tap plate 44. The structure that joins with 45 is used.

[Problems to be solved by the device]

However, in the conventional joining structure, the tap plate
The screw hole 43 of 44 and the through hole 47 of the end plate 46 are aligned with each other, and the tap plate 44
It is necessary to form each of the screw holes 43 in the tap plate 44 vertically. Therefore, precision is required to form these through holes 47, especially the screw holes 43. Further, when joining the columns 41 and the beams 45, it is necessary to accurately align the end plate 46 and the tap plate 44 due to this precision, and the alignment work wastes work time. This precision and the waste of working time increase the cost of the entire joint structure.

An object of the present invention is to provide a column-beam joint structure at a low total cost.

[Means for solving the problem]

According to the present invention, when a hollow pillar and a beam which is arranged on one side surface of the pillar and whose end plate is fixed to the end are joined by bolts, a nut plate arranged inside the hollow portion of the pillar is used. Fix a plurality of nut holders in a predetermined positional relationship, hold the nuts in each nut holder movably and non-rotatably, and pass through the end plate of the beam and the side surface of the pillar to the nuts of the nut plate described above. The bolts are screwed together to form a beam-column joint structure.

[Action]

According to the present invention, since the nuts move to positions where the nuts can be screwed into the bolts that penetrate the end plates of the beams and the side surfaces of the columns, the bolts and nuts can be easily screwed together. At this time, since the nuts are made non-rotatable by the holders, the bolts are securely tightened and quickly screwed into the nuts. The pillar and the beam are quickly joined by the screw engagement of the bolt and the nut.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows the lower structure of the pillar of this embodiment. Since the upper structure of the pillar of this embodiment is similar, the description of the upper part of the pillar will be omitted.

In FIG. 1, a square column 10 has a relatively thick reinforcing plate 12 welded to one side surface 11 thereof, and four through holes 13 penetrating the reinforcing plate 12 and the side surface 11 are arranged in a predetermined positional relationship. Has been formed.

Further, a bottom plate 15 is formed at the lower end of the hollow portion 14 of the pillar 10,
A diaphragm 16 is welded to the inside of the hollow portion 14 with a predetermined distance from the bottom plate 15 so as to separate the hollow portion 14.

Further, on one side surface 11 of the pillar 10, a nut plate 20 as shown in FIG. 2 is arranged in the hollow portion 14 and fixed to the inner surface of the side surface 11 by spot welding or the like.

This nut plate 20 has 4
One nut holder 21 is fixed by welding or the like corresponding to the predetermined positional relationship of the through holes 13 described above, and four bolt holes 22 are formed penetrating the nut plate 20 and the nut holder 21 in the same positional relationship. Has been done. Each nut holder 21
Is hollow, and a nut 23 is movably and non-rotatably held therein.

On the other hand, an end plate 31 is fixed to an end portion of the beam 30, and four insertion holes 32 are formed in the end plate 31 so as to correspond to the predetermined positional relationship of the through holes 13 described above. .

Bolts 33 are loosely inserted into the insertion holes 32, the through holes 13, and the bolt holes 22, and the bolts 33 are screwed into the nuts 23, respectively.

 Therefore, the present embodiment has the following effects.

That is, since the bolt 33 is loosely inserted into the insertion hole 32 and the through hole 13 and the nut 23 is movably held by the nut holder 21, it is not necessary to form the insertion hole 32 and the through hole 13 with high accuracy. can do. In addition, the accurate alignment between the end plate 31 and the side surface 11 becomes unnecessary,
Working time can be shortened. Due to the shortening of the working time and the elimination of the aforementioned accuracy, a significant reduction in cost can be achieved and an inexpensive joining structure can be obtained.

It should be noted that the present invention is not limited to the above-described embodiment, but includes the following modifications and the like.

That is, although the quadrangular prismatic column 10 is used in the above-described embodiments, for example, a quadrangular columnar column and other polygonal columns may be used, that is, the columnar shape is not limited.

 Similarly, the shape of the beam 30 is not limited.

Further, the nut holder 21 is, as shown in FIG.
The cross section is not limited to the rectangular shape, and may be, for example, a hexagonal shape. That is, it is sufficient if the nut 23 can be held so as to be movable and non-rotatable.

Further, although the reinforcing plate 12 is welded to the side surface 11 of the pillar 10, the reinforcing plate 12 may be omitted. However, if the reinforcing plate 12 is used as in the above-mentioned embodiment,
It is possible to reinforce the rigidity with respect to the rotation moment around the end plate 31 of the beam 30.

In addition, the specific structure, shape, and the like when implementing the present invention may be other structures and the like as long as the object of the present invention can be achieved.

[Effect of device]

As explained above, according to the beam-column joint structure of the present invention, the total cost can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention, FIG. 2 is a sectional view of an essential part taken along the line II-II of FIG. 1, and FIG. Sectional drawing. 10 …… pillar, 11 …… side, 14 …… hollow part, 20 …… nut plate, 21 …… nut holder, 23 …… nut, 30 ……
Beam, 31 …… End plate, 33 …… Bolt.

Claims (1)

[Scope of utility model registration request] 1. A column-beam joining structure for joining a hollow column and a beam, which is arranged on one side surface of this column and whose end plate is fixed to an end, by bolts, wherein the column is arranged in the hollow portion of the column. A plurality of nut holders are fixed to the nut plate in a predetermined positional relationship, the nuts are movably and non-rotatably held by the respective nut holders, and the nut plates are passed through the end plates of the beams and the side surfaces of the columns. A column-beam joint structure characterized by screwing bolts into each nut.