JPH0470439A - Pillar body for mounting beam - Google Patents

Abstract

PURPOSE:To obviate the welding work in the site so as to enhance the working efficiency by protruding a bolt shaft to a pillar base body, formed of a short scale angle steel pipe, from the reverse side through a back board material and also screwing a beam mounting metal fixture thereafter fixing a beam. CONSTITUTION:A plurality of bolt shafts 6 are protruded at a right angle to a pillar base body 2, consisting of a short scale angle steel pipe of sectional shape equal to a pillar body 1, from each surface in the reverse side through a back board material of width not interfering with each other. Next, a beam mounting member 32 is screwed to the pillar base body 2 by bolts 6 while fixing the pillar base body 2 to a beam mounting position of the pillar body 1. Further, a beam D is fixed by bolts to the beam mounting metal fixture 32. In a work spot, assembly is performed without performing welding work. In this way, efficiency of work can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a column body for attaching beams that allows beams to be easily attached to columns made of steel pipes and facilitates transportation.

[Conventional technology]

In steel frames used in multi-story houses, multiple beams are often connected to one column at the same height. In such a case, conventionally, as illustrated in FIG.
A connecting column e was formed by welding a joint material d to the joint material d, and a beam was attached to the joint material d using bolts.

The splicing material d is made of a shaped steel material having the same cross-section as the beam, and is welded in advance at the factory to the side surface of the stiffener f1 that surrounds the column a above and below the column a.

[Invention or problem to be solved]

However, such connecting columns e must be prepared in many different types, with different beam installation positions and dimensions.
Furthermore, it increases the number of man-hours required for welding work at the factory, resulting in poor productivity. Furthermore, the protrusion of the splicing material d from the pillars a increases the bulk, resulting in poor transportability.

Furthermore, since the welding area between column a and joint material d is small,
There are problems in that the mounting strength is poor, leading to deterioration in quality and lack of reliability.

The present invention is based on the use of short column bases with protruding screw shafts, which allows beams to be efficiently fixed to columns, improving productivity and transportability, and helping to stabilize quality. The purpose is to provide pillars.

[Means to solve the problem]

In order to achieve the above object, a column for attaching a beam according to the present invention is made of a short square steel tube having four plate parts each having a hole surrounded by an inner surface of the same width, and each plate part has a through hole. The pillar base provided,
and a bolt fitting that is inserted into the hole and extends through the through hole through the back plate member along the inner surface of each plate part and protrudes perpendicularly to the screw axis for fixing the beam to the column base; The width of the back plate member is smaller than the width of the inner surface minus twice the thickness of the back plate member.

[Effect]

By making the width of the back plate member having the screw shaft smaller than the width of the inner surface surrounding the hole of the column base minus twice the thickness of the back plate member, the width of the back plate member having the screw shaft is approximately the same as that of the four plate parts. The screw shaft of the beam that protrudes from the back plate member can be inserted into the through hole provided at the height, and the beam installation increases the productivity of the column and eliminates welding work at the construction site. ,
Helps stabilize quality. Also, since there are no protruding parts, transportability and handling are improved.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In Figs. 1 to 5, the column 1 for beam attachment of the present invention is
A column base 2 made of a short square steel pipe A, and a bolt fitting 3 with a screw shaft 6 protruding from the back plate member 5 for fixing the beam to the column base 2, which is inserted into the hole B of the column base 2. It consists of

The pillar base 2 is a tube material with a square cross section that has a hole B surrounded by the plate portions 4- by connecting plate portions 4- consisting of four rectangular plates of the same length and width with their long sides abutted against each other. Therefore, the inner surfaces of the respective plate parts 4 facing the hole B are formed to have the same width TB in the horizontal direction.

The back plate member 5 is a vertically long rectangular plate.
The width TA is smaller than the width TB of the inner surface 7 of the pillar base 2 minus twice the thickness W of the back plate member 5. In this embodiment, the vertical length of the back plate member 5 is greater than the vertical length of the pillar base 2.

Therefore, the back plate member 5 has the two long sides and the two edges of the inner surface 7 each larger than the thickness W of the back plate member 5 and has approximately the same length. can come into contact with the inner surface 7 of. Further, since the back plate member 5 has a vertical length larger than that of the column base 2, the protruding pieces 11 can be formed near the upper and lower ends of the back plate member 5 beyond the upper and lower ends of the column base 2.

The plate portion 4 is provided with a through hole 9-0 at an appropriate position, through which the screw shaft 6, which projects perpendicularly to the back plate member 5, passes.

In this embodiment, the screw shaft 6 is configured such that a bolt 14- is inserted from the inner surface of the back plate member 5 into a bolt insertion hole 13- provided through the hole 9-1 in the back plate member 5. It is formed by the threaded shafts 14A-- of the bolts 14-, which protrude.

Further, the bolt fitting 3 is made up of the back plate member 5, a plurality of bolts 14-,-, and a receiving frame 16 that prevents the hexagonal head 14B of the bolt 14 from rotating.

As shown in FIG. 4, the receiving frame 16 protrudes from the inner surface of the back plate member 5 at approximately the same height as the hexagonal head 14B and at a distance between the two opposing faces of the hexagonal head 14B. A pair of protrusions 19. prevent the hexagonal head 14B from rotating.
19, and a back surface 20 that connects the tips of the protruding pieces 19.19 and contacts the outer surface of the hexagonal head 14B, and at the outer end of each protruding piece 19.19, The back plate member 5
A leg piece 21.21 is provided which is welded to the inner surface of the holder. Note that the width of the protruding piece 19 is formed to be approximately the same as the width TA of the back plate member 5.

As described above, the back plate member 5 is arranged with its two long sides separated from the edge of the inner surface 7 by a distance greater than the thickness W of the back plate member 5. In this example, the long sides and the inner surface 7 The distance from the edge of the support frame 16 to the edge of the support frame 16 is greater than the sum of the thickness W of the back plate member 5 and the height H of the receiving frame 16 from the back plate member 5. Therefore, as shown by the dashed line in FIG. The screw shaft 6- can be inserted into the screw shaft 9- and can come into contact with the inner surface 7. In addition, by bringing the bolt fitting 3 into contact with the inner surface 7, and then screwing the nuts 23-, -, . . . onto the screw shaft 6 from the outer surface of the plate portion 4,
The bolt fittings 3 can be temporarily attached to the column base 2 and transported in this state. The nut 23 is removed prior to installing the beam.

Column 1 is attached to column E located above and below at the construction site.
1. After connecting to E2, fix the beam.

The pillars E1 and E2 are both made of square steel tubes with the same cross-section as the pillar base 2, and the lower and upper ends of the pillars E1 and E2 are adjusted while the height of the pillar 1 to which the beam is attached is adjusted by the lower pillar E2. Each beam is attached to the column 1 by welding. In this example, since the protruding pieces 11 of the back plate member 5 protrude from the upper and lower ends of the column base 2, the outer surface of the protruding pieces 11 and the inner surfaces of the column members E1 and E2 can also be welded, and the connection strength is Significantly improved. Note that when the column 1 is located on the top floor, the protruding piece 11 may be formed without protruding from the column base 2, and a plate material may be welded to the top end of the column 1 to cover the top of the column 1. I can do it.

The beam is connected to the column 1 via a metal fitting 32 that protrudes from the side surface 30 of the column base 2.

The beam has flanges 42.4 above and below the vertical web 41.
The upper and lower flanges 42 and 43 are bolted to the mounting fittings 32 and 32, respectively.

The mounting fitting 32 is formed as a T-shaped fitting in which a mounting piece 34 is provided in the center of a vertical fixing piece 33 along the side surface 30 and extends horizontally at right angles to the side surface 30.

Moreover, the mounting bracket 32-9 has the screw shaft 6 and the screw shaft 6, which pass through small holes drilled at the upper and lower positions of the fixing piece 33 with the mounting pieces 34- at the same height on the upper and lower sides of each side surface 30-. It is bolted to the nut 23.

The two mounting brackets 32 and 32 arranged above and below one side surface 30 and bolted together are attached to the upper mounting piece 34.
The upper and lower flanges 42 and 43 of the casing are positioned and attached so that they are in contact with the lower surface of the upper and lower flanges 42 and the upper surface of the other mounting piece 34, respectively, and the two mounting pieces 34
．． 34 and the upper and lower flanges 42, 43 are bolted together, the beam is firmly fixed to the column 1 via the two fittings 32, 32.

In order to prevent the screw shaft 6 from rotating, the head 14B of the bolt 14 forming the screw shaft 6 may be directly welded and fixed to the inner surface of the back plate member 5, as shown in FIG. .

Furthermore, as shown in FIG. 7, it can also be formed by welding the back plate member 5 to which the bolts 14 are welded and fixed to the inner surface 7 of the plate part 4. In this example, the nuts 23 are not required for temporarily attaching the bolt fittings 3 during transportation and when welding the upper and lower columns E1 and E2.

Alternatively, the bolt fitting 3 may be formed by directly welding the screw shaft 6 to the back plate member 5.

FIG. 8 shows another example of a column for beam attachment.

In the case shown in FIG. 8, the width of the outer surface of the back plate member 5a is equal to the width tb of the inner surface 7a of the plate portion 4a, and the long side thereof is in the direction in which the width of the back plate member 5 decreases from the outer surface to the inner surface. It is cut diagonally. As a result, the four back plate members 5
a can be brought into contact with the inner surface 7a of the column base 2a without interfering with each other. Then, the bolt insertion hole 13a of the back plate member 5a and the through hole 9a of the plate part 4a are aligned, the bolt 14a is inserted from the inside, and the head 14b of the bolt 14a is welded to the back plate member 5a, and the beam A column 1a is used for mounting.

〔Effect of the invention〕

As described above, the column for attaching a beam of the present invention has a back plate member with a screw shaft protruding from which the beam can be fixed to the inner surface of the column base made of a square steel pipe, and the screw shaft is provided on the column base. It is placed along the through hole. Therefore, there are no bulky parts, making transportation convenient, and welding work at the construction site can be eliminated.
It is possible to increase productivity and stabilize quality.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view showing its main parts, Fig. 3 is a plan view thereof, Fig. 4 is a perspective view showing a bolt fitting, and Fig. 5 is a front view showing an embodiment of the present invention. A plan view showing its action,
Fig. 6 is a side view showing a bolt fitting of another embodiment, Fig. 7 is a plan view showing another embodiment, Fig. 8 is a plan view showing another example, and Fig. 9 is a perspective view showing the prior art. It is a diagram. 2--Column base, 3--Bolt fittings, 4--Plate portion 5
...-back plate member, 6-screw shaft, 9-through hole, 8-
Square steel pipe, B--hole, TA,...-width of back plate member, TB-111/width of inner surface, W--thickness of back plate member. Patent Applicant National Housing Industry Co., Ltd. Agent Patent Attorney Masaaki Naemura 1st Figure tIs Figure Flute 61!1 Figure 9/

Claims (1)

[Claims] 1. A column base made of a short square steel pipe having four plate parts each having a hole surrounded by an inner surface of the same width, and each plate part having a through hole;
and a bolt fitting that is inserted into the hole and extends through the through hole through the back plate member along the inner surface of each plate part and protrudes perpendicularly to the screw axis for fixing the beam to the column base; The width of the back plate member is smaller than the width of the inner surface minus twice the thickness of the back plate member.