JPH04143340A - Connecting part construction of beam and pillar - Google Patents

Abstract

PURPOSE:To simplify connecting parts by forming slits on steelwork beam fitting parts of a steel pipe pillar, penetrating a plurality of rib plates between opposed faces of the pillar and fixing, and welding the flanges of steelwork beams to the rib plates. CONSTITUTION:Vertical slits are drilled on steelwork beam fitting positions of a steel pipe pillar 1 of closed section, and a of rib plates 3 are penetrated between the opposed faces of the pillar 1 and fixed. Steelwork beams 2 are fitted to the pillar 1, and the flange parts of the steelwork beams are fixedly secured to the rib plates 3 by welding. Hereby, construction of the connecting parts is simplified and execution is also simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a column-beam joint structure in which a column with a closed cross-section and a steel beam are joined by passing the column through the joint.

[Problems to be Solved by the Invention] When the joint between a closed cross-section column such as a square steel pipe or steel pipe and a steel beam is constructed by penetrating the column, the upper and lower flanges of the steel beam inside or outside the column Because of the need for stress transmission between the columns and beams, a diaphragm is usually placed horizontally as shown in Figure 5.

The structure in which this diaphragm is arranged is manufactured by cutting the pillars at the position where the diaphragm is to be placed, and then welding and connecting the pillars after the diaphragm is installed, which requires a great deal of manufacturing effort. Furthermore, when columns are made of steel pipe concrete, there are problems such as poor filling of concrete near the joints due to the diaphragm.

Furthermore, the stress transmission mechanism of the joints is structurally complex, and many parts remain unclear.

This invention was made based on the actual situation of the pillar-penetrating joint using such a diaphragm, and aims to propose a new structure that overcomes the above-mentioned problems.

[Failure to solve the problem]

In the present invention, instead of using a diaphragm, a steel beam is connected to a column via a rib plate with a longitudinal cross section that penetrates between opposing sides of the column and intersects at right angles inside, thereby eliminating the need to cut the column for diaphragm placement. , which reduces the manufacturing effort and solves the problem of manufacturing accuracy.

The rib plates are longer than the distance between the sides of the column, overlap one another inside the column, and are located on both sides of the upper and lower flanges of the steel beam.

The steel beam is welded to the roof plate and the column at the flange.

〔Example〕

The present invention will be explained below based on the drawings showing one embodiment.

As shown in FIG. 1, this invention connects a column 1 with a closed cross-section, such as a square steel pipe, to a steel beam 2 using a plurality of rib plates 3 that penetrate the column 1 and intersect at right angles inside the column 1. It is. The steel beam 2 includes a bracket located at its end and joined to the column 1 in advance.

The rib plate 3 is attached to the side surface of the column 1 (as shown in Figure 3-1).
slit la made in the flange).

As shown in FIGS. 1-1 and 2, they are arranged in parallel in a cross-shaped pattern, overlapping in the vertical direction and intersecting each other at right angles, forming a vertical plane and being arranged at the upper and lower flange positions of the steel beam 2.

The rib plates 3 are located on both sides of the flange on a plane as shown in Figure 1-■, and on the elevation as shown in
However, because there is a step in the orthogonal direction of each flange position, there is a flange on the upper surface side of the flange of one steel beam 2, and a flange on the steel beam 2 in the direction orthogonal to this. It will be located on the bottom side.

As shown in Fig. 1-■, the steel beam 2 is sandwiched between, for example, rib plates 3, 3 that are parallel to each other in the - direction, and abuts the side surface of the column 1, and has flanges on the rib plate 3°3 and the side surface of the column 1. It is welded and joined to the column 1 at.

Figures 3-1 to ■ show the procedure for joining the steel beam 2 to the column 1, and the slit a is formed with a step between the adjacent sides as shown in ■. Rib plate 3
is welded and fixed to this slit a as shown in ■.

The steel beam 2 is welded to two rib plates 3.3 and the side surfaces of the column 1 at the upper and lower flange positions, respectively, as shown in (3).

If the stiffness of the column 1 is insufficient, the stiffness can be compensated for by attaching a patch plate 4 to the side surface of the column 1 all over the outer periphery and joining it by fillet welding, etc., as shown in Fig. 4. be exposed. In this case, a similar slit 4a is formed in the backing plate 4 at the position of the slit a.

〔Effect of the invention〕

As described above, this invention connects a steel beam to a column by a rib plate that partially penetrates the side of the column, so the structure of the joint is extremely simplified, and the processing is done by cutting a slit into the column. All that is required is the formation of , which simplifies construction.

In addition, the rib plate does not block the cross section of the column, so when the column is made of steel pipe concrete, it has good concrete filling properties and workability.

[Brief explanation of the drawing]

Figure 1-■ and ■ are respectively a plan view and an elevation view showing an embodiment of the present invention, Figure 2 is a perspective view showing the arrangement of the beam plate, and Figure 3-I to ■ are from the formation of slits. FIG. 4 is a perspective view showing an example of column reinforcement, and FIG. 5 is a perspective view showing a conventional structure. 1...Column, 1a...Slit, 2...
... Steel beam, 3 ... Rib plate, 4 ...
...Backing plate, 4a...Slit. C ward C castle bow construction ( r ( de - Zeng ( 會Ctsu ('J cv - Figure 4 Figure 5

Claims (1)

[Claims] (1) A column with a closed cross section and a steel beam are connected via a plurality of rib plates that pass through the opposing sides of the column, overlap vertically and intersect at right angles inside the column, and are longer than the distance between the sides. A column-beam connection characterized in that the rib plates are placed on both sides of the upper and lower flanges of the steel beam, and the steel beam is welded to the rib plate and the side of the column at the flange. Department structure.