JPH03176526A - Column and beam joining construction of steel pipe column and steel framed beam - Google Patents

Abstract

PURPOSE:To improve the accuracy of a column and the execution efficiency by fixing triangular reinforced plates to the inside of each corner section on the up and down ends of a beam joining section of a hollow square column horizontally, and mounting beam members between the reinfoced plates. CONSTITUTION:Triangular reinforced plates 4 are fixed horizontally to the inside of each corner section on the up and down surfaces of a beam joining section of a hollow square column 1. After that, beam members 3 are fixed to the surface of the square column between the reinforced plates 4 and 4 with welding, etc. According to the constitution, the reinfoced plate equivalent to a diaphragm can be easily and positively mounted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a column-beam joint structure for joining a steel pipe column and a steel beam.

[Conventional technology]

Generally, a diaphragm is installed at the beam joint of a copper pipe column in order to increase the rigidity of this part and smooth the transmission of stress. The through diaphragm method is installed on the end face of a column cut at the position (see Figure 13), the internal diaphragm method is installed at the top and bottom flanges of the beam inside the column that is cut at the beam web position (see Figure 14), and There are two main types: the outer diaphragm method, which is installed on the outer periphery of the pillar without cutting it (see Figure 15) [Problems to be solved by the invention] However, each method has several problems that need to be solved. be.

In other words, in order to join the diaphragm to the above three, it is necessary to cut the pillar once and then weld the cut part again to join it, which not only takes time but also makes it difficult to ensure the accuracy of the pillar. There is a problem.

Moreover, the latter method has problems such as a large amount of welding and the processing is troublesome.

This invention was proposed in order to solve the above-mentioned conventional problems, and its purpose is to provide a column-beam joint structure that eliminates the need for cutting columns and minimizes welding. That is.

[Means for Solving the Problems] The present invention relates to a column-beam joint structure between a steel pipe column and a steel beam, in which a reinforcing plate is attached horizontally to the inside of each corner of the beam joint of the steel pipe column. In addition, the above-mentioned object is distantly related by having the edge portion of the reinforcing plate welded and fixed into a horizontally long slit formed in the corner portion of the beam joint.

〔Example〕

The present invention will be described below based on an illustrated embodiment.

A steel beam 3.3 is connected to the beam joint 2 of the steel pipe column 1.

Further, the beam joint 2 is reinforced by a plurality of reinforcing plates 4.4.

H-shaped steel is used for the steel beam 3, and the steel beam 3 is integrally joined to the flat portion 2a of the beam joint 2 by welding.

The reinforcing plate 4 is formed into a triangular plate shape, and has upper and lower flanges 3 of the steel beam 3 inside each corner 2b of the beam joint 2.
They are attached so that they are aligned horizontally as a and 3a.

Then, the two edges thereof are inserted into slits 5, 5, which will be described later, and are integrally attached by welding.

The slit 5 connects the steel beam 3 to the corner portion 2b of the beam joint 2.
The slits 5 are formed over a certain length in line with the upper and lower flanges 3a, 3a, and each slit 5 is suitably beveled.

The size and thickness of the reinforcing plate 4 are appropriately determined by taking into consideration the out-of-plane rigidity of the upper and lower flanges 3a of the steel beam 3 and the steel pipe column l, and the slits are determined according to the thickness and size of the reinforcing plate 4. The width and length of 5 are also determined appropriately.

Also, concrete may be placed inside the steel pipe columns l if necessary.

5 to 11 show a method of attaching the reinforcing plate 4. FIG. - Of these, in Figures 5 and 6, a handle part 4a is provided on one side of the reinforcing plate 4, and this handle part 4a is used as a handle when setting and welding the reinforcing plate 4, so that the reinforcing plate 4 can be attached. This makes it easier.

The handle portion 4a is removed after the reinforcing plate 4 is attached.

FIGS. 7 and 8 show that a gripping part 4a and a reinforcing part 4b are provided at the corners of the reinforcing plate 4 so as to protrude from the corner parts of the beam joint 2, thereby further increasing the stress transmission to the beam joint 2. After attaching a plate like the part 4a, cutting work can be omitted.

9 to 12 show a vertical groove 5a of a predetermined depth at both left and right ends of each slit 5 in the embodiment shown in FIGS. 5 and 6.
, 5a are provided respectively, and the vertical groove 5a is provided on the oblique side of the reinforcing plate 4.

By providing the vertical rib 4C that engages with the steel pipe column 5a, the stress distribution state of the reinforcing plate 4 is made uniform, and the stress transmission to the concrete when concrete is placed inside the steel pipe column 1 is increased. It is something.

The vertical slit 5 into which the reinforcing plate 4 with the vertical lip 4c is inserted can be inserted diagonally as shown in Fig. 12, and is shaped in consideration of the welding groove after insertion. .

〔Effect of the invention〕

Since the present invention has the above configuration, it has the following effects.

A reinforcing plate corresponding to the diagonal L can be attached extremely easily and reliably without cutting the steel pipe column.

In addition, the number of welding operations can be significantly reduced, and the difficulty of ensuring the precision of the steel pipe columns can be avoided, resulting in a marked improvement in workability.

[Brief explanation of the drawing]

1 to 12 show an embodiment of the present invention, and FIG. 1 is a cross-sectional view showing a joint between a steel pipe column and a steel beam;
FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a partially enlarged view of FIG. 2, FIG. 4 is a partial perspective view of the steel pipe column, and FIGS. 5 to 12 are other embodiments of the present invention. Examples are shown in Figures 5, 7, and 9, which are cross-sectional views showing the joints between steel pipe columns and steel beams; Figures 6, 8, and 10 are side views; 1
1 is a perspective view thereof, FIG. 12 is a cross-sectional view thereof, and FIGS. 13, 14, and 15 are perspective views showing a joint between a conventional steel pipe column and a steel beam. ■...Steel pipe column, 2...Beam joint, 3...Steel beam, 4...Reinforcement plate, 4a...Handle part, 4b...
・Horizontal rib, 4C...Vertical rib, 5...Slit, 5a
...Vertical groove. Figure Figure Wording 5 Figure Figure Figure Figure Figure 0 Figure Figure 1

Claims (1)

[Claims] (1) A column-beam joint structure between a steel pipe column and a steel beam, in which a reinforcing plate is attached horizontally to the inside of each corner of the beam joint of the steel pipe column, and the edge of the reinforcing plate is attached to the beam joint of the steel pipe column. A column-beam joint structure characterized by being welded and fixed into a horizontally long slit formed at the corner of the joint.