JP2932818B2 - Construction method of steel structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a steel structure.

[0002]

2. Description of the Related Art For example, when a steel structure such as a boiler steel frame is constructed, as shown in FIG. 6, a single member 30 such as a column, a large beam, a horizontal brace, a small beam, a supporting beam, a handrail or the like is conventionally used. A method is employed in which the material is lifted and conveyed by a crane 26 and attached to a predetermined position by bolts or welding. In FIG. 6, 3
Reference numeral 1 denotes a steel frame structure under construction.

[0003]

In the conventional method for constructing a steel structure, i) the single members 30 themselves are lifted and conveyed one by one by the crane 26, and are mounted at predetermined positions. Ii) Each piece of material 30 must be transported to the site once and stored in large quantities as individual pieces 30 at the site. Is bad, iii) there is a high risk of work due to many high-place work, iv) a large number of joints (connections) for on-site assembly are required,
It is very difficult to determine the position of the joint (joint) at the design stage because it is impossible to attach any part other than the predetermined member to that part. Because of the necessity, there is a problem that the construction cost becomes enormous.

[0004] In view of such circumstances, an object of the present invention is to provide a method of constructing a steel structure capable of shortening the construction period, improving workability, increasing safety, and reducing construction costs. It was done.

[0005]

According to the present invention, there is provided a floor block with a column formed by assembling a single member such as a column, a girder, a horizontal brace, a small girder, a supporting beam, a grating, a handrail, and the like. A pillar-less floor block is assembled by assembling single members such as large beams, horizontal braces, small beams, carrying beams, gratings, and handrails into blocks.

[0006]

[Function] Since a non-pillar floor block in which another single member is assembled and blocked is assembled between a floor block with pillars in which a single member is assembled and blocked, the construction period for building a steel structure is shortened. In addition, workability is improved because the number of parts to be stored at the site is reduced, safety is improved because work at height is reduced, and construction costs are reduced due to a reduction in man-hours.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a floor block with pillars to which the method of the present invention is applied. The floor block with pillars 1 has four pillars 2 arranged at corners and four pillars 2
Girder 3, 4 horizontally mounted at the intermediate position in the height direction of the column 2 to connect the girder 2, the girder 5 connecting the girder 3, 3 to each other, and the girder 6 connecting the girder 4 to the girder 5. And small beam 5,
5, a beam 8 supported by the beams 4 and 5, a grating 9 for the floorboard mounted on the beam 8, and a hand disposed around the grating 9. A slide 10 and joints (terminals) 11 and 12 attached to two adjacent columns 2 of the columns 2 so as to protrude horizontally.
A horizontal brace 13 arranged toward the columns 2 and 2 located on a diagonal line, and a hanger 14 suspended from the beam 8
And various pipes 15 suspended from the hanger 14 (the hanger 14
And the various pipes 15 are assembled into blocks by welding or bolting in a factory or the like in advance.

In FIG. 2, reference numeral 16 denotes a pillar-less floor block to which the method of the present invention is applied. The pillar-less floor block 16 is a joint of the floor block 1 with pillar.
The girder 17, which is parallel and horizontal to each other, is connected to 11 or 12; the girder 18, which connects the girder 17, 17; the girder 19, which connects the girder 18, 18; A beam 20, a grating 21 for a floorboard mounted on the beam 20, a handrail 22 disposed around the grating 21, and a horizontal brace 23 diagonally arranged on the lower surface of the beam 17. A hanger 24 suspended from the loading beam 20 and various pipes 25 suspended from the hanger 24
(The hanger 24 and the various pipes 25 are shown in FIG. 3), and are assembled in advance in a factory or the like by welding or bolting to form a block.

When assembling the floor block with pillars 1 and the floor block 16 without pillars, the floor block with pillars 1 is first suspended from a crane 26 as shown in FIG. Pillar 2 in advance foundation 2
7 and pillars 2 and 28
Is fixed by eye plates and high tension bolts or welding. Next, another floor block 1 with pillars is
6, suspend the pillar 2 of the floor block 1 with pillars,
The joints (ports) 11, 11 of the floor blocks 1 with pillars are spaced apart from the floor block 1 with pillars already attached to the pillars 28 by one pitch of the pillars 28 on another pillar 28 so that they face each other. The pillars 2 and 28 are fixed by eye panels and high tension bolts or welding or the like in the same manner as the above-described pillar-mounted floor block 1, and then the pillar-less floor block 16 is suspended by a crane 26. Without the floor block 16 between the two sets of floor blocks with pillars 1, 1 already mounted on the pillars 28,
7 is connected to the joint (connection) 11 of the floor block 1 with columns.
Then, fix it by eye plate and high tension bolt or welding. When the floor block 16 without pillars is mounted between the two sets of floor blocks with pillars 1 and 1, the state shown in FIG. 4 is obtained. In FIG. 4, reference numeral 29 denotes a panel connecting the joint (joint) 11 of the floor block 1 with pillars and the girder 17 of the floor block 16 without pillars.

[0011] Joint (connection) 1 of floor block 1 with pillar
After the pillar-less floor block 16 is mounted on one side, another pillar-mounted floor block 1 is connected on the pillar 28 so that the joints (ports) 12 face each other in the same manner as described above. Another pillarless floor block 16 is connected between 1,1.

When one floor is formed by assembling the floor-less floor block 16 between the floor blocks 1 and 1 with pillars, the floor block with pillars 1 is formed above the floor in the same manner as described above. , The pillarless floor block 16 is assembled.

It should be noted that the connection of the joints between the adjacent floor blocks and the attachment of the vertically extending braces and the like provided between the layers are performed at an appropriate time.

As described above, the pillar-less floor block 16 is provided between the pillar-equipped floor blocks 1 and 1 previously manufactured in a factory or the like.
By assembling the steel structure, the steel structure can be built in a short time.

In addition, since it is not necessary to store a large number of discrete single parts on site, workability is improved, work at high places is reduced, and work stability is improved. Port) and the number of man-hours for storage and installation of parts is greatly reduced, so that construction costs can be greatly reduced.

Further, conventionally, even lightly-loaded objects such as various pipes are directly suspended from the main frame members such as large beams and small beams, and it is necessary to change or add the main frame members as the piping plan progresses. In such a case, the production change is very difficult and the remodeling cost is high. However, in this embodiment, the lightly loaded objects such as the various pipes 15 and 25 are suspended from the carrying beams 8 and 20. Even if it is necessary to remodel the beams 8 and 20 as the plan progresses, the remodeling cost may be low.

The steel structure to which the construction method of the present invention is applied includes a boiler steel frame, a building steel frame and the like. Further, in the embodiment of the present invention, the case where the hanger and the various pipes are blocked together has been described. However, the hanger and the various pipes may be attached after the steel structure is attached. It goes without saying that various changes can be made without departing from the spirit of the invention.

[0018]

According to the method for constructing a steel structure of the present invention, I) a column-less floor block in which a single-piece member is similarly assembled to form a block between pillar-type floor blocks in which a single-piece member is assembled and made into a block. Because I am trying to attach
It is possible to quickly build a steel structure and shorten the construction period. II) Workability is improved because the number of parts to be stored at the site is reduced. III) Work at high places is reduced. Therefore, various excellent effects can be achieved, such as high safety, and IV) the construction cost is reduced due to the reduction in man-hours.

[Brief description of the drawings]

FIG. 1 is a perspective view of a floor block with columns applied to a method of building a steel structure according to the present invention.

FIG. 2 is a perspective view of a pillarless floor block applied to the method of building a steel structure according to the present invention.

FIG. 3 is a side view of various pipes suspended from each floor block of FIGS. 1 and 2;

FIG. 4 is a perspective view showing a state where a pillarless floor block is assembled between pillared floor blocks according to the method for building a steel structure of the present invention.

FIG. 5 is a perspective view showing how a floor block with columns is built in the method for building a steel structure according to the present invention.

FIG. 6 is a perspective view showing a conventional method of constructing a steel structure.

[Explanation of symbols]

 1 Floor block with pillars 2 Pillars (single piece) 3, 4 Large beams (single piece) 5, 6, 7 Small beams (single piece) 8 Mounting beams (single piece) 9 Grating (single piece) 10 Handrails (single piece) 13 Horizontal brace 16 Pillar-less floor block 17 Large beam (single item) 18, 19 Small beam (single item) 20 Mounting beam (single item) 21 Grating (single item) 22 Handrail (single item) 23 Horizontal brace

──────────────────────────────────────────────────続 き Continuing on the front page (72) Takanori Kunihiro Inventor, Toyosu Sogo Office, 3-2-1-16 Toyosu, Koto-ku, Tokyo (72) Inventor Akihiko Tawara 3-chome Toyosu, Koto-ku, Tokyo No. 2-16 Ishikawa Shima-Harima Heavy Industries, Ltd. Toyosu General Office (58) Field surveyed (Int.Cl. ⁶ , DB name) E04G 21/14 E04B 1/24 E04B 1/35

Claims (1)

(57) [Claims] 1. A separate girder, horizontal brace, small girder, between a floor block with a column made by assembling a single member such as a column, a girder, a horizontal brace, a small girder, a supporting beam, a grating, a handrail, and the like. A method for constructing a steel structure, comprising: assembling a single member such as a mounting beam, grating, a handrail, and the like and assembling a block-less floor block.