KR102027704B1 - Prefabricated Steel Column Using Honeycomb Steel Plate And Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a prefabricated steel column having a honeycombed opening and a manufacturing method thereof, and more specifically, to a prefabricated steel column having a honeycombed opening, which implements excellent structural performance than the same quantity of a square steel pipe by using a steel plate having a honeycombed opening to form a steel column and is possible to reduce a front end connecting material by improving integrity of steel inner and outer concrete through the honeycombed opening, and a manufacturing method thereof. One embodiment of the prefabricated steel column having the honeycombed opening of the present invention forms a square box-shaped main body formed by certain length of a square cross section so that the inside is vacant, and is formed with a honeycombed opening by being penetrated with a certain interval in a longitudinal direction at each side of the main body.

Description

Prefabricated Steel Column Using Honeycomb Steel Plate And Manufacturing Method Thereof}

The present invention relates to a steel column for pre-assembly having a honeycomb-shaped opening and a manufacturing method thereof, and more particularly, to form a steel column using a steel sheet having an opening of the honeycomb-shaped openings than the square steel pipe of the same amount Steel column for pre-assembly having honeycomb-shaped openings and its manufacturing method which exhibits excellent structural performance and improves the integrity of internal and external concrete of steel through honeycomb-shaped openings, thereby reducing shear connection materials. It is about.

In general, in the case of closed section SRC columns using square steel pipes, formwork is sometimes used to add concrete cover. If the concrete is not coated, the performance of fire resistance is lowered. Therefore, a number of shear connectors such as studs are required on the outside of the steel column, and stress flow uncertainty exists due to the strength mismatch of the concrete in the steel column. there was. In addition, in the case of closed section steel column, the beam-pillar connection is realized through the diaphragm. In addition, the welding rod is difficult to access in all directions, which makes the diaphragm construction difficult, as well as beam joints such as inner / penetrating diaphragms. There may be a problem of filling or voids in the concrete, so in the case of the closed section SRC, there is a problem in that the bleeding drainage hole and the air hole must be additionally worked.

In the case of PSRC (Prefabricated SRC), where the steel angle is added to the cross-section in the prefabricated RC (PRC) prefabricated rebar method, the PSRC welds the angle and the transverse reinforcement. Since the welding parts are required a lot and the welding quality greatly depends on the welder, there is a problem that it is difficult to secure a certain welding quality, and although the PSRC is SRC, the steel beam and the joint are complicated and the workability is deteriorated. .

As a background technology of the present invention, Patent Registration No. 1381858, "Sheet formwork integrated line assembly pillar and beam" (Patent Document 1). In the background art, 'a plurality of main rods or shaped steels (110) disposed at positions spaced inward at a predetermined interval from the outer surface of the edge of the column 10 having a polygonal cross-sectional shape; A horizontal support member 120 coupled to the main root or the shape steel 110 on the same side of the column 10 so as to be spaced up and down by a predetermined interval; A vertical support member 130 provided to contact the outer surface of the edge of the pillar 10 and having both left and right ends coupled to an end of the horizontal support member 120; Sheets 140 having a predetermined width up and down as provided on the horizontal support member 120 and the vertical support member 130; And coupling the sheet 140 to the horizontal support member 120 and the vertical support member 130 in close contact with the sheet 140 at a position corresponding to the horizontal support member 120 and the vertical support member 130. Member 150; It proposes a sheet formwork integrated line assembly pillar, characterized in that the configuration.

However, the background art is difficult to manufacture because the configuration is complicated, PSRC has a problem that the steel beam and the joint is complex and the workability is reduced despite the SRC.

Patent Registration No. 1381858 "Sheet formwork integrated line assembly column and beam"

The present invention is to solve the above problems, by using a steel sheet having an opening of the honeycomb shape to form a steel column to achieve excellent structural performance compared to the existing SRC or pre-assembled composite columns through the efficient cross-sectional arrangement of the steel It can be used to improve the integrity of internal and external concrete of steel through honeycomb-shaped openings, which can reduce shear connection materials, and form steel reinforced concrete (SRC) columns that satisfy the fire resistance performance by covering concrete. In addition, it is used as a pre-fabricated steel column to improve the construction of joints with long-span steel beams to compensate for the shortcomings of columns that pre-assemble existing reinforcing bars. To provide a prefabricated steel column with honeycomb-shaped openings and a method of manufacturing the same To have its purpose.

The present invention comprises a rectangular box-shaped body which is made of a predetermined length of the rectangular cross-section is empty; An object of the present invention is to provide a prefabricated steel column having a honeycomb-shaped opening, characterized in that the opening is formed through the honeycomb-shaped opening at a predetermined interval in the longitudinal direction.

In addition, the main body is made of a junction of the four side plates, the side plate is a honeycomb-shaped opening by placing a pair of unit grooves facing each other in the unit plate formed with a trapezoidal unit grooves formed at regular intervals at one end in the width direction It is to provide a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the bonding is formed to form.

In addition, each corner portion of the side plate is a corner member having an a-shaped cross-section, the steel column for pre-assembly having a honeycomb-shaped opening, characterized in that the side plate is formed so as to connect between the corner member and the corner member To provide.

In addition, when joining between the unit plate, the end portion between the unit plate is in contact with or spaced a certain distance, and the joining member made of any one of the plate, angle and channel to connect the adjacent unit plate, characterized in that for coupling with a bolt To provide a prefabricated steel pillar having an opening of the honeycomb shape.

In addition, the opening is to provide a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the mesh member is formed by joining the finish member of the mesh.

In addition, the main body is composed of four joints of the a-shaped unit member having a cross-section a, the end portion abutting between the a-shaped unit members are formed in the trapezoidal unit grooves at regular intervals in the longitudinal direction, the pair of unit grooves facing each other It is intended to provide a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the joining to form a single opening.

In addition, the end portion contacted when the a-shaped unit member is joined to provide a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the bent reinforcement is formed to be bent outward or inward.

In addition, during the bonding between the a-type unit members, the ends between the a-type unit members are in contact with each other or are spaced apart by a predetermined distance, and the joining member made of any one of a plate, an angle, and a channel is connected to the bolt to connect the adjacent a-type unit members. It is to provide a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that.

In addition, (a) preparing a steel plate of a predetermined size; (b) manufacturing a pair of unit plates in which the trapezoidal shape of the steel plate is cut so that the trapezoidal shape is repeated in the longitudinal direction of the steel plate at regular intervals in the longitudinal direction at one end of the width direction; (c) arranging a pair of unit plates so that unit grooves face each other to form side plates; (d) joining the four side plates to form a rectangular cross section; to provide a method for manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening comprising a.

In addition, in step (a), a corner member having an a-shaped cross section is additionally prepared, and in step (d), a corner member and an edge where the side plates meet each have a honeycomb, characterized in that by forming a corner member. An object of the present invention is to provide a method for manufacturing a steel pillar for preassembly having a comb-shaped opening.

In addition, (A) preparing a steel plate of a predetermined size; (B) cutting the steel plate to repeat the trapezoidal shape in the longitudinal direction at regular intervals in the width direction, to produce a unit plate in which trapezoidal unit grooves are formed at regular intervals in the longitudinal direction at both ends of the width direction; (C) bending the widthwise central portion of the unit plate at right angles to form an a-shaped unit member; (D) placing four a-shaped unit members facing each other so that the unit grooves face each other so that a rectangular cross section is formed; providing a method for manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening, comprising: I would like to.

In addition, between the steps (C) and (D), the step of bending a portion spaced inward in a certain distance in the width direction at both ends of the width-wise unit member to the outside or inward to form a bending reinforcement portion; It is intended to provide a method for manufacturing a steel column for pre-assembly having a honeycomb-shaped opening.

Further, in step (D), when joining between the a-type unit members, the end portions between the a-type unit members are in contact with each other or are spaced apart by a predetermined distance, and the joining member made of any one of a plate, an angle, and a channel to connect adjacent A-type unit members. It is intended to provide a method of manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening characterized in that the coupling to the bolt.

In addition, in the step (D), the opening is to provide a method for manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the mesh member is formed by joining the finish member.

Prefabricated steel column having a honeycomb-shaped opening of the present invention and a method of manufacturing the composite SRC or pre-assembly through the efficient cross-sectional layout of the steel by forming a steel column using a steel plate having a honeycomb-shaped opening Compared to the column, it can exhibit excellent structural performance, improve the integrity of steel-internal and external concrete through honeycomb-shaped openings, reduce shear connection materials, and cover steel concrete to satisfy the fire resistance performance. SRC) can not only form pillars, but also used as prefabricated steel pillars to improve the constructability of joints with long span steel beams, to compensate for the shortcomings of pillars that prefabricate existing rebars. It is very useful in the construction of buildings with structural forms.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a perspective view showing the manufacturing method of the first embodiment of the pre-assembly steel column having a honeycomb-shaped opening of the present invention.
2 is a perspective view of another embodiment of FIG.
3 is a perspective view of another embodiment of FIG.
Figure 4 is a perspective view showing the manufacturing method of the second embodiment of the pre-assembly steel column having a honeycomb-shaped opening of the present invention.
5 is a perspective view of another embodiment of FIG. 4.
6 and 7 are cross-sectional views illustrating various modified examples of FIG. 5.
8 is a diagram illustrating a stress distribution according to the shape of the opening.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention according to a preferred embodiment in detail.

1 is a perspective view showing the manufacturing method of the first embodiment of the prefabricated steel column having a honeycomb-shaped opening of the present invention, Figure 2 is a perspective view of another embodiment of FIG.

Steel assembly for pre-assembly having a honeycomb-shaped opening of the present invention is made of a predetermined length of the rectangular cross-section rectangular box-shaped main body 10 and the inside empty; The honeycomb-shaped openings 20 are formed through each side of the main body 10 at regular intervals in the longitudinal direction.

Although not shown, the main body 10 may be bent to form a quadrilateral cross section by bending one steel plate, or four plates may be joined to form a quadrangular cross section.

In particular, as shown in Figure 1a, the main body 10 is made to form a square cross-section by the joining of the four side plates 11, as shown in Figures 1b and 1c, the side plate 11 is one end in the width direction A pair of unit plates 11a in which trapezoidal unit grooves 20a are formed at predetermined intervals may be positioned to face the unit grooves 20a so as to be joined to form a honeycomb-shaped opening 20. have.

3 is a perspective view of another embodiment of FIG.

In particular, when joining the unit plates (11a) can be bonded to the surface of the unit plate (11a) to be interviewed by a method such as welding, as shown in Figure 3, the joining member (to connect the adjacent unit plate (11a) ( 30 may be padded to be joined by a bolt 31.

At this time, the joint between the unit plate (11a), the end between the unit plate (11a) may be in contact with the joining member 30, the end between the unit plate (11a) when joining between the unit plate (11a) The cross section may be extended by allowing the joint member 30 to be spaced apart by a predetermined distance.

The bonding member 30 may be configured on the inner side or the outer side of the unit plate 11a and may be coupled to the unit plate 11a using only bolts or may be joined by bolting and welding. In particular, the bonding member 30 may be made of a plate of a predetermined size as shown, it may be to provide a mounting surface of the PC beam by using an angle or a channel.

In addition, the bonding member 30 is coupled to the unit plate (11a) with a bolt 31, such that the bolt 31 does not need a separate stud construction to act as a stud.

Opening 20 is to be made of a hexagonal honeycomb shape, so as to integrate the inner and outer concrete of the body 10 made of steel through the opening 20 to perform the function of the shear connector.

At this time, the opening portion 20 may be formed by bonding the finishing member 40, such as metal mesh, welded wire mesh of the mesh network shape to the inner surface or the outer surface to prevent soil inflow into the interior when the top-down method is applied. have.

8 is a diagram illustrating a stress distribution according to the shape of the opening.

As shown in FIG. 8, when the opening is formed as a hexagonal opening in FIG. 8 (i), the stress can be evenly distributed or the manufacturing cost can be reduced.

As shown in FIG. 1, four side plates 11 may be formed to have a rectangular cross section, and as shown in FIG. 2, each corner portion of the side plate 11 may have an a-shaped cross section 12. ) May be configured such that the side plate 11 is connected between the edge member 12 and the edge member 12.

As described above, the side plate 11 and the corner member 12 may be divided into structural members.

That is, the edge member 12 may resist the axial force and may increase the moment arm length, improve the lateral force resistance, and reduce the size of the equipment. The side plate 11 may serve as a transverse restraint through the opening 20 and the like. Shear connectors and transverse rebars are unnecessary.

In particular, by distributing the structural role for each member in this way, the thickness of the side plate 11, such as to form a thinner than the edge member 12 can be varied in plate thickness, thereby reducing the material cost.

Figure 4 is a perspective view showing a manufacturing method of a second embodiment of a pre-assembly steel column having a honeycomb-shaped opening of the present invention, Figure 5 is a perspective view of another embodiment of Figure 4, Figures 6 and 7 5 is a cross-sectional view illustrating various modified examples of FIG. 5.

As described above, four plates may be joined to form a quadrangular cross section, and as shown in FIGS. 4 to 6, the main body 10 may be formed of four joints of four a-shaped unit members 13 having an a-shaped cross section. Can be lost.

At this time, the end portion of the a-shaped unit member 13 which is in contact with each other so that the trapezoidal unit grooves 20a are formed at regular intervals in the longitudinal direction, and a pair of unit grooves 20a are positioned to face each other. By joining to form the opening 20, it is possible to minimize the joint between the members.

At the time of bonding between the a-type unit members 13, the welding may be performed by a method such as welding. As shown in FIGS. 5 and 6, the end portions of the a-unit unit members 13 that are contacted during the bonding may be bent outwardly or inwardly. By forming the portion 131, the bending reinforcement portion 131 itself serves to reinforce the side portion of the body 10, at the same time provide a bonding surface and may also function as a shear connector.

In particular, as shown in FIG. 7, when bonding between the a-shaped unit members 13, the ends between the a-shaped unit members 13 are in contact with each other or are spaced apart by a predetermined distance, and the plate and the angle are connected to connect the adjacent a-shaped unit members 13. And a joining member 30 formed of any one of the channels to be coupled to the bolt 31.

Particularly, in the case of bonding between the a-type unit members 13, the surface of the a-type unit member 13 may be joined by welding or the like, and the joining member 30 may be connected to connect the adjacent a-type unit members 13. In addition, the bolts 31 may be coupled to each other.

At this time, when the bonding between the a-type unit member 13, the end portion between the a-type unit member 13 may be joined to the bonding member 30, the a-type unit member 13 when the bonding between the a-type unit member 13 End portions between the two) may be spaced apart by a certain distance to be coupled to the bonding member 30 to extend the cross section.

According to the embodiment described in detail the manufacturing method of the steel column for pre-assembly having the honeycomb-shaped opening of the present invention as follows.

First, as shown in Figure 1b, to prepare a steel plate 1 of a predetermined size (a), to cut the center portion of the width direction of the steel plate 1 in the longitudinal direction to repeat the trapezoidal shape (b).

The steel plate 1 may be formed in various thicknesses and widths, and the steel plate 1 may be cut in a zigzag shape in which the trapezoid is repeated to manufacture two unit plates 11a.

As described above, when the center portion in the width direction of the steel plate 1 is zigzagly cut, the unit plate 11a in which the trapezoidal unit grooves 20a are formed at regular intervals in the longitudinal direction at one end in the width direction when separated after the incision is formed. ) A pair is made.

The unit groove 20a has a trapezoidal shape in a shape corresponding to half of the opening 20 described later.

Then, as shown in Figure 1c, a pair of unit plates (11a) are placed so that the unit grooves (20a) facing each other to produce a side plate (11) (c).

Since the unit plate 11a is formed by zigzag-cutting the central portion in the width direction of one steel plate 1, as shown in FIG. 1C, the unit grooves 20a are positioned so as to face each other at the same position without being staggered. (11a) and the unit plate (11a) to be bonded.

As such, when the pair of unit plates 11a are bonded to each other, an opening 20 having a hexagonal honeycomb shape is formed.

At the time of joining between the unit plates 11a, the surfaces of the unit plates 11a may be joined by welding or the like, and the joining member 30 may be padded to connect the adjacent unit plates 11a with bolts 31. It can also be combined to join.

In the present invention, by cutting the one steel plate (1) to make a pair of unit plates (11a) to produce the side plate 11, it is possible to minimize the waste of the material, a pair of units in one cut Since the plate 11a can be manufactured, manufacturing cost and time can be shortened.

Four such side plates 11 are joined to form a rectangular cross section to produce a steel column as shown in FIG. 1A (d).

In particular, as in FIG. 2A, in step (a), an edge member 12 having an a-shaped cross section is further prepared, and in step (d), an edge where the side plate 11 and the side plate 11 meet each other. Each of the corner members 12 may be configured to be bonded to each other, and thus, as shown in FIG. 2B, a steel pillar including the corner members 12 and the side plates 11 may be manufactured to divide the structural roles for each member.

According to a second embodiment of the method for manufacturing a prefabricated steel column having a honeycomb-shaped opening of the present invention, as shown in FIGS. 4 and 5, the body 10 has an a-shaped cross section a-shaped unit member 13 4. It can be made of two junctions.

First, as shown in Figures 4a and 4b, to prepare a steel plate (1) of a predetermined size (A), the incision so that the trapezoidal shape is repeated in the longitudinal direction at a predetermined interval in the width direction of the steel plate (1), the width (B) A unit plate 11b is formed in which trapezoidal unit grooves 20a are formed at regular intervals in the longitudinal direction at both ends of the direction (B).

That is, a plurality of unit plates 11b having the same width and shape are manufactured by cutting one steel plate 1 at regular intervals, thereby minimizing waste of materials, and providing a plurality of unit plates of the same standard ( 11b) can be manufactured at the same time, reducing the production cost and time.

As shown in FIG. 4C, the unit plate 11b manufactured as described above may be bent at right angles to the center portion in the width direction of the unit plate 11b to form an a-type unit member 13 (C).

The a-shaped unit member 13 has trapezoidal unit grooves 20a formed at regular intervals in the height direction at both end portions in the width direction.

Thereafter, as shown in FIG. 4D, the four A-shaped unit members 13 are positioned so that the unit grooves 20a face each other to be joined to form a rectangular cross section (D).

Since the a-shaped unit member 13 is formed by zigzag-cutting the central portion in the width direction of one steel plate 1, by adjusting the position in the vertical direction, the unit grooves 20a are positioned to face each other at the same position without being staggered. The a-type unit member 13 and the a-type unit member 13 are bonded to each other. As such, when the four a-shaped unit members 13 are bonded to each other, an opening 20 having a hexagonal honeycomb shape is formed at each side of the main body 10.

The steel plate can be produced by cutting the steel plate, bending once, and welding only four places in the same manner as described above.

In particular, as shown in Figs. 5a and 5b, between the step (C) and (D), the portion spaced apart by a predetermined distance inward from the widthwise both ends of the a-shaped unit member 13 by bending outward or inward to strengthen the bending The portion 131 may be formed, and as shown in FIG. 5C, in the step (D), the four a-shaped unit members 13 may be positioned so that the unit grooves 20a face each other to form a rectangular cross section.

Such bending reinforcement 131 itself serves to reinforce the side portion of the body 10 and at the same time provide a bonding surface and may also function as a shear connector.

In particular, the bending reinforcement portion 131 may be bent in the right angle direction of the outside, as shown in Figure 6 (a), as shown in Figure 6 (b), may be bent in the right angle direction of the inner side, Figure 6 As in (c), it may be bent at a predetermined angle or more.

In particular, when the bonding between the a-type unit member 13 may be welded, the end portion between the a-type unit member 13 is in contact or spaced apart a certain distance, the plate to connect the adjacent a-type unit member 13, The joint member 30 made of any one of an angle and a channel may be padded to be coupled to the bolt 31.

As described above, the prefabricated steel column having the honeycomb-shaped opening and the manufacturing method thereof have a conventional SRC or the like through the effective cross-sectional arrangement of the steel by forming the steel column using the steel plate having the honeycomb-shaped opening. Compared with pre-assembled composite columns, it can exhibit excellent structural performance, improve the integrity of steel-internal and external concrete through honeycomb-shaped openings, reduce shear connection materials, and cover concrete to satisfy fire resistance. In addition to forming reinforced concrete (SRC) columns, they are used as pre-fabricated steel columns to improve the construction of joints with long-span steel beams to compensate for the shortcomings of columns that prefabricate existing rebars. It is very useful in the construction of buildings with columnar structural forms.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art may make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The invention is not limited by the invention as such variations and modifications but only by the claims appended hereto.

1: steel plate
10: main body
11: side plate
11a, 11b: unit plate
12: corner member
13: a-type unit member
131: bending reinforcement
20: opening
20a: unit groove
30: joining member
31: Bolt
40: finishing member

Claims (16)

It consists of a rectangular box-shaped main body 10, which is made up of a predetermined length of a square cross section,
Side plates 11 formed by opening the honeycomb-shaped openings 20 at regular intervals in the longitudinal direction are disposed on each side of the main body 10, and each corner portion of the side plate 11 is disposed more than the side plates 11. An edge member 12 having an a-shaped cross section having a thick plate thickness is disposed such that the side plate 11 is connected between the edge member 12 and the edge member 12,
The side plate 11 has a honeycomb-shaped opening 20 by arranging a pair of unit plates 11a in which the trapezoidal unit grooves 20a are formed at regular intervals at one end of the width direction so that the unit grooves 20a face each other. Steel column for pre-assembly having a honeycomb-shaped opening, characterized in that the bonding is formed so that). delete delete The method according to claim 1,
When joining between the unit plates 11a, the end members between the unit plates 11a are in contact with each other or are spaced apart by a predetermined distance, and the joining member 30 made of any one of a plate, an angle, and a channel to connect the adjacent unit plates 11a. Steel column for pre-assembly having a honeycomb-shaped opening, characterized in that the coupling to the bolt 31. The method according to claim 1,
Steel column for pre-assembly having a honeycomb-shaped opening, characterized in that the opening 20 is bonded to the mesh member is formed in the shape of the mesh. delete delete delete (a) preparing a steel plate 1 of a predetermined size and an edge member 12 having an a-shaped cross section having a thicker plate thickness than the steel plate 1;
(b) a unit plate 11a in which the trapezoidal shape of the steel plate 1 is cut so that the trapezoidal shape is repeated in the longitudinal direction, and a trapezoidal unit groove 20a is formed at a predetermined interval in the longitudinal direction at one end in the width direction. ) Manufacturing a pair;
(c) manufacturing a side plate 11 by arranging a pair of unit plates 11a so that the unit grooves 20a face each other to form a honeycomb-shaped opening 20;
(d) joining the corner members 12 to the corners where the side plate 11 and the side plate 11 meet each other so that a rectangular cross section is formed; and a line having a honeycomb-shaped opening, characterized in that it comprises a. Method of manufacturing steel pillars for assembly. delete The method according to claim 9,
in step (c),
When joining between the unit plates 11a, the end members between the unit plates 11a are in contact with each other or are spaced apart by a predetermined distance, and the joining member 30 made of any one of a plate, an angle, and a channel to connect the adjacent unit plates 11a. Method of manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the coupling to the bolt 31. The method according to claim 9,
in step (c),
Method of manufacturing a steel pillar for pre-assembly having a honeycomb-shaped opening, characterized in that the opening 20 is bonded to the mesh member of the mesh member. delete delete delete delete

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