JPH0810082Y2 - Beam-column joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a beam-column joint structure using a beam-column joint member, and more specifically, a steel pipe or a steel plate is arranged at a beam-joint portion of a steel frame column made of steel pipe. The present invention relates to a column-beam joint structure using an appropriate connecting member for a joint between an installed reinforced concrete column and a steel beam.

[Prior Art] Conventionally, as a technique for joining columns and beams by bolting a reinforcing steel plate and a steel beam beam arranged inside the column through a column whose beam joint is made of a steel pipe or a steel plate. Is
The technique described in JP-A-61-225437 is known.

[Problem to be Solved by the Invention] This technique uses a reinforcing steel plate having an I-shaped cross section having a width that matches the column inner diameter and an end shape that corresponds to the column inner shape. And the beam are bolted through the pillar.

However, according to this technique, as described above, I
It is necessary to specially process or newly manufacture the shaped steel sheet,
Processing or manufacturing such an I-type steel sheet has the drawback of being expensive and time-consuming.

In addition, when the beam joint position or the column shape is changed due to design changes, it is extremely uneconomical not only to prolong the work period but also to process or manufacture the I-type steel plate according to the change. It has the drawback of being.

[Object of the Invention] Therefore, an object of the present invention is to reinforce the beam joints and to disperse the stress by using a normal steel plate without special processing or manufacturing of the reinforcing steel plate, which is economical. An object of the present invention is to provide a beam-column joint structure using a joint connecting member.

[Means for Solving Problems] The present inventors have arrived at the present invention as a result of extensive studies to achieve the above object.

The column-beam joint structure according to the present invention is a joint structure between a steel pipe column and a beam steel frame, and a connecting member having an L-shaped cross section and a steel plate having a predetermined length and a long hole formed in each surface is prepared. By passing a bolt through the long hole on the one surface side of the connecting member, while fixing the end portion of the reinforcing steel plate having the following structure arranged inside the steel pipe column, using the long hole on the other surface of the connecting member, It is characterized in that the joining members attached to the ends of the beam steel frame with bolts are joined with the bolts with the steel pipes of the column-beam joints sandwiched therebetween.

(Structure of Reinforced Steel Plate) Steel plate that enhances the strength of the beam-column joint of the column and transmits the stress applied to the beam to the column and other beams to disperse it (there is no flange-like protrusion such as flange or rib at the end. It consists of a single plate).

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of a connecting member for beam-column joints according to the present invention, and FIG. 2 is a cross-sectional view showing a state of using the connecting member for beam-column joints according to an embodiment of the present invention. It is a figure.

In the figure, 1 is a column where a beam joint is made of a steel pipe or a steel plate, and 2 is a beam joined to the column 1. 1A is
It is needless to say that the pillar 1 is a vertical bar in the case of reinforced concrete construction, and may not be in the case of steel frame construction.

The pillar 1 may be either a steel frame structure or a reinforced concrete structure as long as the beam joint is made of steel pipe or steel plate. In the latter case, only the vertical bar 1A is arranged at the beam joint,
Except for the joints, it is constructed by normal reinforced concrete construction with vertical reinforcement 1A and stirrup.

Further, the steel frame beam 2 may be a steel frame member, and in addition to general H-shaped steel, those having various shapes such as a truss beam and a lattice beam can be applied. Reference numeral 2A is a joining member for fastening the beam 2 to the pillar 1 by bolts. If the end portion of the beam 2 has a shape capable of being bolted in advance, the joining member is
2A is unnecessary.

When the pillar 1 and the beam 2 are fastened and fixed by the bolt 5 and the nut 6, the connecting member 3 is fixed to the inner side of the pillar 1 by the bolt 5 at the same time. Reinforcing steel plate 4 on the fixed connecting member 3
Are fastened and fixed by bolts 5'and nuts 6 '.

The connecting member 3 connects the beam 2 joined to the column 1 to the reinforcing steel plate 4 via the column 1 to increase the strength of the column 1 at the beam-column joint and to apply the stress applied to the beam 2 to the column 1 and other members. Can be transmitted to the beam and dispersed. As shown in FIG. 1, the connecting member 3 has through holes for bolts 5 for fixing the beams 2 via columns 1 and bolts 5'for fixing the reinforcing steel plate 4.
3A is provided, and it is preferable that the through hole 3A is a long hole so as to cope with an error in construction or a deviation in dimensional accuracy of the pillar 1 or the reinforcing steel plate 4. Further, it is preferable that the angle X corresponds to the angle between the inner side of the column 1 and the contact portion of the reinforcing steel plate 4 from the viewpoint of reinforcing strength and stress transmissibility, and by changing the angle X, they face each other as shown in FIG. Even when the beams 2 and 2 to be joined together are so-called misaligned joints, sufficient strength and reliable stress transmission are achieved. Further, even when the pillar 1 is a cylinder as shown in FIG. 4, the same effect as described above can be obtained by forming the connecting member 3 into a shape corresponding to the surface provided in contact with the inside of the pillar 1.

By using the connecting member 3, if the reinforcing steel plate 4 has sufficient strength as a reinforcing member, use a normal steel plate only by processing it so as to correspond to the column inner diameter and height of the beam joint. You can Therefore, even in the case of the above-mentioned FIG. 3 and FIG. 4, it is not necessary to perform special processing or newly manufacture like the above-mentioned conventional I-type steel plate, and it is extremely necessary. It is economical.

Although the embodiment of the present invention has been described above, the present invention is not limited to this. For example, four beams 2 are cross-shaped to form a pillar 1.
In the case of joining to each other, the reinforcing steel plates 4 can be formed in a cross shape by the connecting member 3 of the present invention as shown in FIG. 5 without processing or manufacturing the reinforcing steel plates 4 in a cross shape.

After joining the beam 2 to the pillar 1 as described above, if the pillar 1 is made of reinforced concrete, concrete is placed in the pillar 1, and if the pillar 1 is made of steel frame, it is necessary. Accordingly, concrete is placed in the pillar 1.

[Advantages of the Invention] According to the present invention, it is possible to reinforce and disperse stress at beam joints using ordinary steel plates without special processing or manufacturing of reinforcing steel plates, and at the same time, for economical beam-column joints. A part connecting member can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connecting member for beam-column joints according to the present invention, and FIG. 2 is a cross-sectional view showing a state of using the connecting member for beam-column joints according to an embodiment of the present invention. FIG. 3 and FIG. 5 are sectional views showing other modes. 1: Pillar 2: Beam 3: Connection member 4: Reinforcing steel plate 5: Bolt 6: Nut

Claims (1)

[Scope of utility model registration request] 1. A connecting member having a joint between a steel pipe column and a beam steel frame, wherein a connecting member having an L-shaped cross section and a long hole formed in each surface of a steel plate is prepared, and one surface of the connecting member is prepared. Insert the bolt through the long hole on the side to fix the end portion of the reinforcing steel plate having the following configuration arranged inside the steel pipe column, and use the long hole on the other surface of the connecting member to the end portion of the beam steel frame. A column-beam joint structure, characterized in that joining members attached by bolts are connected by bolts while sandwiching a steel pipe of the column-beam joint. (Structure of Reinforced Steel Plate) Steel plate that enhances the strength of the beam-column joint of the column and transmits the stress applied to the beam to the column and other beams to disperse it (there is no flange-like protrusion such as flange or rib at the end. It consists of a single plate).