JP3018179U - Mounting member for joining rectangular steel pipe columns and beams for construction - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention can be applied to a square steel pipe column and beam only by bolt tightening work that can be easily and surely joined even by an amateur without welding work on site. Can be joined. Further, the number of assembling steps is reduced as compared with the conventional product, the cost can be reduced, and the quality is stable. [Structure] The center position of a contact plate 2 having a plurality of mounting holes 21 formed vertically is fixed to the four sides of a rectangular inner plate 1, and
The nut member 3 is fixed to the inside of each of the mounting holes 21, and the outer plate of each of the contact plates 2 that surrounds the inner plate 1 with the corresponding plate 2 and is opposed to the inner plate 1 is approximately the same as the inner size of the rectangular steel pipe column. or,
Instead of fixing the nut member 3 inside the mounting hole 21,
The mounting hole 21 may be directly formed as a mounting screw hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joint mounting member capable of joining a square steel pipe column and a beam only by bolting work without performing welding work on a beam-column joint.

[0002]

[Prior art]

 Conventionally, square steel pipe columns have been often used as column materials for steel frame structures.The square steel pipe has a closed cross section, and one-sided bolts that can be tightened only from the outside of the closed cross section and have sufficient strength. Therefore, there was no choice but to join the square steel column and beam by welding. In this case, the beam bracket H-section steel and the panel zone are welded and assembled in advance, then they are joined together, and a rectangular steel pipe column of a certain length is arranged vertically and welded together. The inner diaphragm type was the mainstream. Recently, high-strength bolt tension bonding has been attracting attention.

[0003]

[Problems to be solved by the device]

 However, the through-diaphragm type and the inner diaphragm type require a large number of welding and assembly man-hours and require skill, so the cost is high and the cost is difficult to reduce. Therefore, it was difficult to ensure stable quality. In the case of high-strength bolt tension joints, when joining square steel pipe columns and beams, reinforcing members with holes must be welded to the four outer corners of the square steel pipe columns. There was also a point that it was difficult to secure stable quality because it required skilled skills. Further, when using one-side bolts, which are high-strength bolts, high dimensional accuracy such as hole position and size is required, and the price of one-side bolts is high and there is concern about strength. There were problems such as not being. In the past, there has been almost no connection between a square steel tube column and a beam that can be done only by tightening bolts without welding work.

An object of the present invention is to provide an attachment member for joining a rectangular steel pipe column for construction and a beam, which enables even an amateur to easily and reliably join.

[0005]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, that is, the central position of a plate in which a plurality of mounting holes are vertically formed is fixed to the four sides of a rectangular inner plate, and First, a nut member is fixed to the inside of each of the mounting holes, and the outer dimension of each of the contact plates facing each other while surrounding the inner plate with the corresponding contact plate is substantially the same as the inner size of the rectangular steel pipe column. Further, instead of fixing the nut member inside the mounting hole, the mounting hole may be directly formed as a mounting screw hole.

[0006]

[Action]

 Next, a method of using the present invention will be described. Prepare a rectangular steel pipe column (4) with holes (41) for attaching the split T (5) in the vertical and horizontal planes beforehand (see Fig. 3). First, the product of the present invention is inserted into the rectangular steel pipe column (4), and is hydraulically fed by pressure to a predetermined position. At this time, confirm that the square steel pipe column (4) is press-fitted in a state of being laid sideways and that the mounting hole (21) and the hole (41) are aligned. At this time, a bolt may be screwed into the screw hole (23) provided on the contact plate (2) from the outside of the rectangular steel pipe column (4) to position and fix it. After checking, set the split T (5), insert the fastening member (6) such as a bolt from the outside, screw it into the nut member (3) or the mounting screw hole (22), and temporarily tighten. It is better to do this up to the factory. Then, the rectangular steel pipe column (4) is set up in advance at a predetermined position on site. Next, the H-shaped steel beam (7) is hoisted by a crane and horizontally inserted between the split T (5). After that, the fastening member (6) is tightened and attached. The split T (5) is attached only to the lower side of the H-shaped steel beam (7) to the rectangular steel pipe column (4) at the factory, and is attached to the upper side of the H-shaped steel beam (7). The split T (5) may be directly attached and assembled at the site. By mounting the product of the present invention on the inside of the rectangular steel pipe column (4), the fastening work can be easily performed from the outside with the fastening member (6), and the product of the present invention also serves as a reinforcing member. (See Figure 4). In the case of a low-rise building structure, for example, a three-story building, a hole (41) should be drilled in one through-column steel pipe column (4), and the product of the present invention should be fed into it from above and below, respectively. Is sufficiently possible, workability is improved, and man-hours are drastically reduced.

[0007]

【Example】

 FIG. 1 is a diagram showing an embodiment of the present invention, and description will be made based on this. (1) is an inner plate formed of a thick steel plate in a rectangular shape. The four corners of the inner plate (1) should have their corners removed. (2) is a thick steel plate contact plate that is fixed to the four sides of the inner plate (1), and a plurality of mounting holes (21) are formed on the upper and lower sides of the plate (2). The central position is fixed to the inner plate (1), the inner plate (1) is surrounded by the contact plate (2), and the outer dimension of each of the opposing contact plates (2) is the inner side of the rectangular steel pipe column (4). The dimensions should be approximately the same as the dimensions so that they can be press-fitted. The mounting hole (21) is approximately the same as or slightly larger than the hole (41) formed in the rectangular steel pipe column (4). (3) is a nut member fixed inside and concentric with the mounting hole (21).

FIG. 2 is a view showing another embodiment of the present invention, which is different from the above embodiment in that a screw is directly engraved in the mounting hole (21) of the contact plate (2) to mount the screw hole. (22) and provided with a positioning screw hole (23), and the nut member (3) is omitted, but otherwise the same. In this case, if the thickness of the contact plate (2) is thin, there may be a problem in strength.

[0009]

[Effect of device]

 By having such a configuration, the present invention has the following effects.

As described in claim 1, a contact plate (2) having a plurality of mounting holes (21) formed on the upper and lower sides and having a nut member (3) fixed inside thereof, and a rectangular inner plate (1). The outer dimension of each contact plate (2) that surrounds the four sides of (1) and is opposed to each other is substantially the same as the inner dimension of the rectangular steel pipe column (4), so that the nut member (3) is formed inside the rectangular steel pipe column (4). ) Or the mounting screw hole (22) is provided, so welding work that has been performed conventionally is not required, and skilled work is not required only by bolt tightening work, and even an amateur can easily and reliably join. . Also, the total assembly man-hours are reduced to about 1/5 of the conventional products, and the processing cost can be reduced by about 1/5 as well, and the product cost including material cost can be reduced by about 30%. , The quality is stable. Moreover, it does not require high dimensional accuracy such as hole position and size when using conventional one-sided bolts, and general bolts can be used.

By providing the mounting plate (2) with the mounting screw hole (22) as described in claim 2, the manufacturing cost of the device of the present invention can be reduced.

By fixing the rectangular steel pipe column (4) and the product of the present invention in advance as in claim 3, when the rectangular steel pipe column (4) is moved or set upright, the present invention It is possible to prevent the mounting position of the product from shifting and dropping.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is an explanatory view showing a usage state of the present invention.

FIG. 4 is an explanatory view showing a mounting state of the present invention.

[Explanation of symbols]

 1 Inner plate 2 This plate 21 Mounting hole 22 Mounting screw hole 23 Screw hole 3 Nut member 4 Square steel pipe column

Claims (3)

[Scope of utility model registration request] 1. A center position of a contact plate (2) having a plurality of mounting holes (21) formed vertically is fixed to the four sides of a rectangular inner plate (1), and each mounting hole is provided. The nut member (3) is fixed to the inside of the (21), and the inner plate (1) is attached to the nut plate (2).
A mounting member for connecting a rectangular steel pipe column for construction and a beam, wherein the outer dimensions of each of the facing plates (2) that surround and are opposed to each other are substantially the same as the inner dimensions of the rectangular steel pipe column (4). 2. A center position of a contact plate (2) provided with a plurality of mounting screw holes (22) vertically is fixed to four sides of a rectangular inner plate (1), and the contact plate (2) is fixed. A rectangular steel pipe column for construction, characterized in that the outer size of each of the contact plates (2) surrounding and enclosing the inner plate (1) in 2) is substantially the same as the inner size of the rectangular steel pipe column (4). And beam attachment member. 3. A positioning screw hole (2) is formed in the contact plate (2).
The mounting member for joining a rectangular steel pipe column for construction and a beam according to claim 1 or 2, which is provided with 3).