JPH11172764A - Steel frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the period of overall construction work for a small-scale building made of steel by shortening the period of steelwork. SOLUTION: A steel frame structure has braced corner posts 15 provided at the corners of a building and beams 4 connecting the braced corner posts together, the braced corner posts 15 constituting a trussed structure or a rigid- frame structure having three posts 16, 17, 18 and a horizontal member 19, a horizontal angle brace 20 and a vertical brace 21 which connect the posts 16, 17, 18 together. In this case, the braced corner posts and the beams are pinned together by web shearing gusset joints, and the steel structure has sufficient dimensions, strength, and rigidity to bear all of horizontal forces applied to the building, and is prefabricated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a steel structure applied to a small-scale structure.

[0002]

2. Description of the Related Art As shown in FIGS. 5 to 8, a conventional steel structure 1 applied to a small-scale structure includes a steel column 2, a bracket 3 extending from the steel column 2 in a horizontal direction, and a bracket 3. And a beam 4 coupled to the beam 3. Steel column 2
Is erected on a foundation 5 as shown in FIG. The bracket 3 is disposed so as to extend in two directions orthogonal to the steel column 2 or in three T-shaped directions.

The bracket 3 and the beam 4 are connected by a web shear gusset joint 6 and a flange joint 7 as shown in FIGS. 28-30 high tension bolts 8 are used for the web shear gusset joint 6 and the flange joint 7.
Are fixed to form a rigid connection. Reference numeral 4 in FIG. 5 indicates a bending resistance underground beam.

[0004]

SUMMARY OF THE INVENTION In a conventional steel structure,
The joint between the column and the beam is a rigid connection by a bending-shear joint, and each column and the beam have a structure that resists the horizontal force. A large number of high tension bolts were required, and this tightening operation required a long time. In addition, since the bracket protrudes from the column, the eccentricity of the load on the column is large, and it is necessary to attach a traverse wire to the column and hold it until the installation of the girder is completed.

In view of the above, the present invention makes it possible to hold the full horizontal load by the brace-type corner posts provided at the corners, thereby enabling the pin connection between the brace-type corner posts and the beam by a web shear gusset joint, An object of the present invention is to provide a steel structure having a simple structure and capable of shortening a construction period.

[0006]

In order to achieve the above object, a steel structure according to the present invention has a brace-type corner post provided at a corner of a building and a beam connecting the brace-type corner posts. The brace type corner post is a truss structure or a ramen structure having three columns and a horizontal member, a fire beam, and a vertical brace connecting these columns, and the brace type corner post and the beam are connected by a pin using a shear gusset joint. It is connected to each other and has a strength and rigidity sufficient to bear the horizontal force received by the structure, and has a prehapped structure.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a steel structure according to the present invention will be described below with reference to FIGS.

The steel structure according to the present invention comprises a brace-type corner post 15 provided at a corner of a building and one brace-type corner post.
5 and 5 that connect the beams 5 and 15. The beam 4 has the same structure as the conventional one.

As shown in FIG. 4, the brace type corner post 15 includes columns 16, 17, 18 and these columns 16, 17, 1, 1
A horizontal member 19 connecting the 8 with each other so as to form a triangle;
It has a fire strut 0 and a vertical brace 21. Fire strut 20
It is removed when the brace type corner post 15 is transported to the destination.

The columns 16, 17, 18 of the brace type corner columns 15
Is erected on a foundation 5 as shown in FIG. Columns 17 and 18 of the brace type corner post 15 have beams 4 as shown in FIG.
Is connected to the web shear gusset joint 6 by three to four high tension bolts 8. The other end of the beam 4 is connected to the intermediate sub-posts 22 and 23 by the web shear gusset joint 6 and three to four high-tensile bolts 8.

The steel structure according to the present invention has a brace-type corner post 15
Into prefabricated sub-posts 22, 23, girder 4, and girder 24.
And so on at the factory. All column and beam connections are web shear gusset joints.

Thus, in order to install the steel structure of the present invention, first, the brace-type corner posts 15 are fixed to each corner of the small-scale structure. When the brace-type corner post 15 is constructed, no wire is required. Next, the sub pillars 22 and 23 are erected. Next, the pillar 17 of the brace type corner pillar 15 and the sub pillar 2
2. The columns 18 of the brace type corner columns 15 are connected to each other by the beams 4. Since the connection between the column and the beam is connected only by the shear gusset joint 6, the steel frame processing in the factory only requires a simple operation such as cutting and drilling.

Next, the roof horizontal brace 10 is fastened,
Harden the horizontal surface. Finally, attach the rim.

In the steel structure according to the present invention, it is the columns of the brace type corner columns that bear the horizontal force, and the columns and the beams are connected by the web gusset shear joint and three to four high tension bolts. The beam can be mounted in a short time, and the construction period can be shortened.

The brace-type corner post need not have a truss structure, but may have a ramen structure or a mixture of a brace-type corner post having a ramen structure and a truss structure. The same effect can be expected by making the horizontal rigidity equal.

[0016]

As described above, according to the present invention, a brace-type corner post provided at a corner of a building and a beam connecting the brace-type corner posts are provided. It is a truss structure or a rigid frame structure having a main column and a horizontal member, a fire beam and a vertical brace connecting the columns. Therefore, the number of high tension bolts required for the work is reduced, so that the beam can be quickly mounted and the number of man-hours can be reduced.

In addition, the erecting of the prefabricated braced corner pillars eliminates the need for a truwire or a bending resistance underground beam in the middle of the building, thereby reducing the work of reinforcing bars, formwork and concrete. The construction period can be shortened and the construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a basic plan view of a building having a steel structure according to the present invention.

FIG. 2 is a beam plan view of a building having a steel structure according to the present invention.

FIG. 3 is a detailed view of a connection between a pillar and a beam.

FIG. 4 is a plan view of a brace type corner post.

FIG. 5 is a floor plan of a conventional steel structure.

FIG. 6 is a beam plan view of a building having a conventional steel structure.

FIG. 7 is a detailed view of a conventional column-beam connection.

FIG. 8 is a sectional view of the joint shown in FIG. 7;

[Explanation of symbols]

 2 pillar 4 beam 6 web shear gusset joint 7 flange bending joint 8 high tension bolt 15 brace type corner pillar 16 pillar 17 pillar 18 pillar 19 brace 20 fire strut

Claims (2)

[Claims] 1. A brace-type corner post provided at a corner of a building and a beam connecting the brace-type corner posts to each other, wherein the brace-type corner post comprises three columns and a horizontal member connecting these columns. A steel structure having a truss structure or a rigid frame structure having a striking beam, a vertical brace, and a brace-type corner post and a beam connected to each other by a pin connection by a shear gusset joint. 2. The steel structure according to claim 1, wherein the brace type corner pillars are triangular and are prefabricated.