JPH02225738A - Column/beam connection structure - Google Patents

Abstract

PURPOSE:To realize simplified execution of work by making a steel beam penetrate through slits provided at the sides of a column with other steel beams having notches equivalent in the length to the width of projection welded thereto at right angles with spliced plates striding thereon, and by welding all the beams to the column at positions of the slits. CONSTITUTION:To a column 2, having H-shaped slits 2a at its four sides, a steel beam 11 is installed penetrating through the slits. Steal beams 12 are then installed from both sides at right angles to the steel beam 11, batting to the side faces of the steel beam 11. Then the steel beams 11, 12 and 12 are connected with spliced plates 3 that are arranged at the sides of upper and lower flanges 1a and 1a of the steel beams 12 and 12 and are made to stride over the upper and lower flanges 1a and 1a of the penetrating steel beam 11. The spliced plates 3 are welded to the flanges 1a and 1a of the steel beams 12 and 12 and the steel beams 11 and 12 and 12 are connected thereby and the connection is completed by welding all the beams to the column 2 at positions of the slits 2a. Thereby the connection secures the same effect as in the case of a connection incorporating diaphragms at the inside of a column.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a column-beam joint structure in which a steel beam is joined to a square or circular steel pipe column.

(Problem to be solved by the invention) A diaphragm is placed at the joint between a rectangular or circular steel pipe column and a steel beam for the purpose of transmitting stress, but due to the way it is inserted, in conventional structures, it is difficult to penetrate the joint. A through diaphragm method that connects to the end face of a column cut at the top and bottom flanges of the beam.
There are two main types: an inner diaphragm method in which the diaphragm is inserted into the upper and lower flanges of the beam inside a column that has been cut at the web of the beam, and an outer diaphragm method in which the column is joined to the outer periphery of the column without cutting it.

However, in the former two methods, the cut pillars must be welded after joining in order to join the diaphragm, which not only takes time and effort, but also makes it difficult to ensure the accuracy of the pillars, and in the latter method, the amount of welding of the diaphragm is large The reality is that both of them have drawbacks in terms of construction, such as their processing being troublesome.

This invention was made in consideration of the actual situation of the conventional structure, and attempts to devise a new joint structure that is easy to construct.

(Means for Solving the Problems) In the present invention, an H-shape into which the steel beam fits, or a horizontally long slit into which the upper and lower flanges of the column fit, is formed on the side surface of the column.
A steel beam is placed through the column through this slit, and a splint is installed between the two lower flanges of the orthogonal steel beams. By welding to the pillar at the web position, cutting of the pillar becomes unnecessary and welding work associated with cutting is reduced.

When an H-shaped slit is formed, a steel beam in one direction is placed to pass between the slits in the column, and a steel beam perpendicular to the slit is placed against the side of the steel beam passing through the column. The upper and lower flanges of the steel beams to be butted are cut out by a width corresponding to the protrusion width of the flanges from the web of the steel beam passing through, and when they are butted together, they completely abut against the side surface of the steel beam passing through.

Both steel beams are connected by splints installed across the upper and lower surfaces of the upper and lower flanges.

When a slit is made at the flange location, the web of the steel beam in one direction is cut out at the internal location of the column, the flange passes through the steel beam, and the web abuts the side of the column.

The steel beams perpendicular to this are abutted against the column sides over their entire length, and splints are joined to the upper and lower surfaces of their upper and lower flanges, spanning the flanges of the penetrating steel beams, thereby connecting both steel beams.

In the latter case, the splint can be integrated with the flanges of the steel beams that are butted against each other, and can also be installed across the flange of the steel beam with a step provided therethrough.

(Example) The present invention will be described below based on drawings showing an example in which a square steel pipe column is used.

This invention connects a steel beam 1 with an H-shaped cross section to a square steel pipe column 2 without cutting it.

First, the invention described in claim 1 will be explained.

In this invention, as shown in FIG. 3, a steel beam 1 is disposed so as to pass through a column 2 having an H-shaped sill 2a formed on the side surface into which a steel beam 1 fits.

As shown in Figure 2, unidirectional steel beam 1. passes through the column 2 over its entire length, and the steel beam 1t perpendicular to this passes through the steel beam 1. placed against the sides of the

The upper and lower flanges 1ala of the steel beams 1g that are butted together are the flange 1a of the steel beam 11 that penetrates as shown in FIG.
The steel beam 1z is cut out by the protruding width from the web 1b, and the 411th! steel beam 1z is inside the column 2. As shown in I-1, it fully contacts the steel beam 11.

Upper and lower flanges la of butted steel beams Xt and 1t
, la, and between the flanges la and la of the steel beam 11 penetrating through them, a splint plate 3 is installed astride both, as shown in FIG. 2 and FIG. 4-■.

The splint plate 3 is welded to the flanges la and la of the steel beam 2.1□ as shown in the figure, and is attached to both steel beams 1. .

Connect 1t.

Steel beam 16.1 connected with splint 3! are shown in Figures 1 and 4.
As shown in the figure, it is welded at position 2a of column 2 and joined thereto.

FIGS. 5 and 6 show examples in which the pillars 2 are side pillars and corner pillars, respectively.

In the former case, the splint 3 joined to the butted steel beam 1□ is installed across the opposing slit 2a, and in the latter case, the flanges 1a, 1a and the splint 3 of the steel beam 1 passing through the same manner It is constructed up to the opposing slit 2a, and the end portion is welded to this slit 2a.

Next, the invention described in the second claim will be explained.

In this invention, as shown in FIG.
Flange la of steel beam 11.1□.

Open only at position 1a, flanges la of steel beams 13 and 12
, la are made to pass through the pillar 2 and are joined to it.

The web 1b of the steel beam l passing through the column 2 is cut out at an external position of the column 2, as shown in FIG.
The end face abuts against the side surface of the pillar 2.

Steel beam 1 perpendicular to this. As shown, the upper and lower flanges la, la and the end faces of the web 1b abut against the column 2, and are welded thereto as shown in FIG. 7.

Steel beam 1 is butted against this column 2! upper and lower flanges of
As shown in FIG. 8, flanges la of steel beam II penetrate through the upper and lower surfaces of a and la.

A splint 3 is installed across 1a, and both steel beams II, 1□ are connected as in the first claim of the invention.

As shown in FIG. 7, both steel beams 17, 1□ are welded to the column 2 at the slit 2a position and the web lb end face position, similarly to the first aspect of the invention.

Next, the invention recited in claim 3 will be explained.

In this invention, as shown in FIGS. 11 and 12, the splint 3 according to the second claim of the invention is integrated in advance with the upper and lower flanges 1a, 1a of the steel beam 1□ that is butted against the column 2, This eliminates the need for welding the steel beam 1□ of the splint plate 3 to the flanges la and Ia.

In the illustrated embodiment, the splint plate 3 is integrally formed by bending the flange plates constituting the flanges 1a+la of the steel beam 1t and adding steps to the upper and lower flanges la and la positions of the steel beam 11 passing through the steel beam 1t, as shown in FIG. Figure 12-
As shown in Fig. 1, a steel beam 1□ is placed perpendicularly across one fill of steel beams.

Steel beam 13. The lz is joined to the column 2 by welding at the position of the line 1-2a of the column 2 and the end face of the web 1b, as shown in FIG. 10, similarly to the second aspect of the invention.

Although the present invention has been described above using an embodiment of a square steel pipe column, the joint portion is constructed in the same manner when a steel pipe with a circular cross section is used for the column 2.

In some cases, the rigidity and strength of the column 2 and the joint may be improved by filling the inside of the column 2 with concrete or by pouring concrete over the entire joint.

(Effect of the invention) This invention is as described above, and a steel beam is placed through a slit provided on the side of a column, and a steel beam orthogonal to the steel beam is connected by a splint that spans between the two. Since the steel beams are welded at the slit position of the column or at the web end position, there is no need to cut the beam, which eliminates the trouble of joining and the difficulty of ensuring accuracy that comes with cutting, and simplifies construction. It turns out.

In addition, the steel beam in one direction passes through the column, and the steel beam perpendicular to the column is straddled by splints, so the same effect as that of inserting a diaphragm inside the column can be secured.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the first claimed invention;
The figure is a perspective view showing the inside of the column, Figure 3 is a perspective view showing how to assemble the steel beam and splint, and Figures 4-1 and 11 are cross sections taken along the XX line and Y-Y line in Figure 1, respectively. Figure, Figure 5-1
, If and FIG. 6 - ■ and ■ are perspective views showing other embodiments, FIGS. 7 and 8 are perspective views showing the embodiment of the second claimed invention, and FIG. 9 is an assembly procedure thereof. Perspective view showing 1st
Figure 0 and Figure 11 are perspective views showing an embodiment of the third claimed invention, Figure 12 is a perspective view showing the assembly procedure, and Figure 1.
Figure 3-I and II are the lines X-X and Y in Figure 1O, respectively.
-Y line sectional view. i, b... Steel beam, Ia... Flange, Ib... Web, 2... Column, 2
a...Slit, 3...Additional plate. Diagram Condolence Map-1 尤0-! No.! At the funeral 1 1■th L'';'] 1■Fuchi-';-■ =・7'' A- Go to Figure 2 116.・2 ゝ〜／・ 1st゜Figure=゛Ishi3 Figure-I 713 Figure-■

Claims (3)

[Claims] (1) A joint structure between a rectangular or circular steel pipe column and a steel beam with an H-shaped cross section, with an H-shaped slit formed on the side surface into which the steel beam fits. A steel beam is placed so as to penetrate through the gap, and a steel beam whose upper and lower flanges are notched in a direction perpendicular to this by the width of the protrusion from the web of the flange of the steel beam passing through the steel beam is butted against the side surface of the steel beam passing through the steel beam. Place splints across the upper and lower surfaces of the upper and lower flanges of the steel beams to be butted and the upper and lower surfaces of the upper and lower flanges of the steel beam that penetrates, connect both steel beams, and attach this to the column at the slit position. Column/beam joint structure made by welding. (2) A joint structure between a rectangular or circular steel pipe column and a steel beam with an H-shaped cross section, with horizontal slits formed on the sides into which the upper and lower flanges of the steel beam fit, and the internal position of the column in one direction. A steel beam with a cutout web is passed through the slits in the column with its upper and lower flanges, and the web is placed against the side of the column, and the steel beam in the direction perpendicular to this is placed against the side of the column. A column-beam joint is created by joining splints that span the flanges of the penetrating steel beams to the upper and lower surfaces of the upper and lower flanges, connecting both steel beams, and welding this to the column at the flange and web positions. structure. (3) The splint is integrated with the upper and lower flanges of the steel beam that butts against the side of the column, and has a step at the flange position of the steel beam that it passes through, so that it straddles the flange of the steel beam. Column/beam joint structure according to claim 2.