JPH0637128Y2 - Joint structure of columns and beams - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a joint structure between a steel pipe column and a beam.

[Problems to be solved by this device]

Conventionally, when a beam is joined to a steel pipe column, a structure as shown in FIG. 7 is usually adopted. That is, the outer diaphragms b and b are attached to the beam-joining portions of the steel pipe columns a and a, and the projecting portion c is projected between the upper and lower outer diaphragms b and b, and the beam d made of I-type steel or the like is extended to the diaphragm b and b. It is fixed to c by welding and high-strength bolts, and in the upper layer (or lower layer), columns are joined by welding. In such a configuration, a large amount of welding is required, and the joint portion also extends over two columns, that is, the column and the column and the column and the beam.

Further, if there is the equipment pipe e, it is necessary to penetrate the beam d, and it is necessary to reinforce it. Furthermore, until the equipment design of the pipe e was decided, the beam d was not manufactured, which was a cause of delay in the construction period.

The present invention has been made in order to solve the above problems, and an object thereof is to provide a column-beam joint structure that is easy to construct and does not delay the construction period.

[Means for solving problems]

This invention replaces the conventional column-column joints and column-beam joints with column-column joints.
It is concentrated in one place of the beam joint part, and the joint structure of the column and the beam is such that the end plates attached to the lower and upper ends of the upper and lower steel pipe columns face each other in parallel vertically with a gap. Face each other and connect with bolts that penetrate the upper and lower end plates and nuts that are screwed into the bolts, and form a beam frame around the lower end plate of the steel pipe column that is wider than the upper end plate. Attach grooved steel plates, arrange reinforcing bars between the upper and lower end plates and in the grooved steel plates, and place concrete in the grooved steel plates and between the upper and lower end plates to integrally form upper and lower columns and beams. There is.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in FIG.

In FIG. 1, reference numeral 1 denotes a steel pipe column, and upper and lower steel pipe columns 1, 1
End plates 2, 2 are attached to the lower end and the upper end, respectively.

The respective end plates 2, 2 of the upper and lower steel pipe columns 1, 1 are opposed to each other in parallel with each other with a space therebetween. The end plates 2, 2 are square and the lower end plate 2 is wider than the upper end plate 2. Further, they are vertically connected by a long high-strength bolt 3 penetrating each corner and a nut 4 screwed onto the bolt 3. At the four edges of the end plate 2 below the lower steel pipe column 1, the bottom of a grooved steel plate 5 that serves as a frame for a beam portion bent into a shallow groove is fixed by high-strength bolts 3'and nuts 4. Has been done. Therefore steel pipe pillar
The channel-shaped steel plate 5 extends in all directions around 1,1. Reinforcing bars 6 are arranged in the channel-shaped steel plate 5 and between the upper and lower end plates 2, 2. In the figure, 7 is a width-stop steel plate for preventing the upper portion of the channel steel plate 5 from expanding.

A deck plate 8 is placed between the opposing channel steel plates 5, 5,
Slab muscles 9 are also arranged on the deck plate 8.

Upper and lower deck plates 2, 2 in the channel steel plate 5 as described above
Between the space and the deck plate 8, concrete 10 is cast and hardened to integrally form upper and lower columns and beams.

Thus, since the upper and lower steel pipe columns 1 and 1 are connected by the long and high strength bolts 3 and the nuts 4, the connecting work is easy. Also, the shallow grooved steel plate 5 serving as the frame of the beam can be connected to the lower end plate 2 by the high-strength bolts 3'and nuts 4, and the work is easy. Since the beam portion of the beam portion is lowered by the shallow grooved steel plate 5, the piping work of the equipment piping is not hindered and the construction can be performed regardless of the equipment design. Although the present invention has the above-described structure, the embodiment shown in FIG. 4 can be adopted. That is, as shown in FIG. 5, the end plate 2 is attached to the outer periphery of the steel pipe column 1 near the end thereof.
Are made to face each other vertically, and their end faces are butted. In this way, the axial force acting on the steel pipe columns 1,1 is
It can be transmitted by the metal touch of each other.

Further, as the steel pipe column 1, either a cylindrical shape or a rectangular tube shape can be adopted.

Further, as shown in FIG. 6, a hole 11 is formed in the center of the end plate 2.
May be formed so that the column 1 can be filled with concrete.

[Effect of device]

This invention has the above-mentioned structure, and the upper and lower steel pipe columns at the column-beam joints face end plates facing each other with vertical intervals at the ends, and are connected by bolts and nuts. Further, since the beam form is also connected to the lower end plate with bolts and nuts, the joining work becomes easy. A shallow bottom grooved steel plate that forms the form of the beam is mounted on the lower end plate, and the beams are constructed by placing concrete between the upper and lower end plates and in the shallow bottom grooved steel plate. Therefore, there is no need to assemble and demold the formwork, positioning of the reinforcing bar is easy, the upper and lower columns are integrated, and the construction of the beam is also easy.

Since the beam section with a small beam is formed by using the shallow grooved steel sheet, it is possible to secure a sufficient piping space for facility piping, and it is necessary to pierce the beam section for reinforcement work. Absent. In addition, construction can be performed regardless of equipment design, and there is no delay in the construction period.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is an end portion of a steel pipe column, FIG. 3 is a longitudinal sectional view thereof, and FIG. 4 is a longitudinal sectional view of another embodiment, FIG. Fig. 6 is a perspective view of a steel pipe column, Fig. 7
The figure is a vertical sectional view of a conventional example. 1 ... Steel tube column, 2 ... End plate, 3 ... long high-strength bolt, 3 '... high-strength bolt, 4 ... nut, 5 ... groove steel plate, 6 ... rebar, 7 ... width stop Steel plate, 8 ... Deck plate, 9 ... Slab reinforcement, 10 ... Concrete, 11 ...
Hole.

Claims (1)

[Scope of utility model registration request] 1. A bolt penetrating the upper and lower end plates, and endless plates attached to the lower and upper ends of the upper and lower steel pipe columns are opposed to each other in parallel with each other at intervals, and screwed to the bolt. Connected with the nuts, the shallow bottom grooved steel plate that becomes the frame of the beam is attached around the end plate of the lower steel pipe column that is wider than the upper end plate, and between the upper and lower end plates and the grooved steel plate. A column-beam joint structure in which reinforcing bars are arranged inside and concrete is placed between the channel steel plate and the upper and lower end plates to integrally form upper and lower columns and beams.