KR102922866B1 - Combined structure and construction method of steel frame modular unit - Google Patents

Abstract

The present invention comprises a first lower column member and a second lower column member that are spaced apart from each other, a first lower beam member that is arranged between the first lower column member and the second lower column member, and is spaced apart from the first lower column member and the second lower column member, a first lower bridge unit that is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the spaced spaces between the first lower column member and the first lower beam member, is formed as an empty space, and forms a step structure with the first lower beam member, and is arranged between the second lower column member and the first lower beam member, A method for forming a frame of a steel frame modular unit is provided, including a second lower bridge unit that is connected to a second lower beam member and a second lower joint plate, is directly connected to the second lower column member, and is positioned below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
Therefore, since the bridge unit connecting the column and the beam is not placed at the virtual position where the beam extends in a straight line, but is placed below or above that virtual position, and the virtual position is formed as an empty space, there is an advantage in that the outdoor side (window side) joint of the modular structure using the ready-made H-beam can be constructed safely and easily indoors by utilizing that empty space.

Description

Combined structure and construction method of steel frame modular unit

The present invention relates to a method for forming a frame and a method for constructing a steel frame modular unit, and more specifically, to a method for forming a frame and a method for constructing a steel frame modular unit that can safely and easily construct an exterior side (window side) joint of a modular structure using prefabricated H-beams indoors.

Modular construction is a construction method that, unlike the existing wet construction method where construction is done on site, manufactures modular units in a factory, constructs various interior and exterior materials, equipment, and wiring in advance, and then transports them to the site, where they are assembled and laminated to complete the construction.

Modular construction methods are significantly affected by on-site manufacturing and construction errors, as well as joint geometry. Material quality plays a significant role in these manufacturing errors. Built-up components, manufactured by bending or welding steel plates, require extremely stringent quality control. Modular construction, which employs square steel pipe columns for mid- to high-rise construction, is likely to adopt built-up columns.

When connecting modular units, if the joints are located externally, the work requires high-altitude work, requiring the use of aerial work platforms or scaffolding. This necessitates thorough safety management. Using aerial work platforms to construct external joints has height limitations, making it difficult to apply to high-rise buildings. Furthermore, scaffolding increases construction costs and modular construction time, negating the modular method's advantages in terms of construction time.

Under these conditions, it is necessary to apply H-beams to improve the quality, productivity, and economy of the frame, and to design a modular unit structure that can be easily constructed without the risk of working at heights in high-rise modular construction.

Republic of Korea Patent No. 10-2524276

The purpose of the present invention is to provide a method for forming a frame and a method for constructing a steel frame modular unit that can safely and easily construct an exterior side (window side) joint of a modular structure using ready-made H-beams, etc. indoors.

According to one aspect of the present invention, the present invention comprises a first lower column member and a second lower column member which are spaced apart from each other, a first lower beam member which is arranged between the first lower column member and the second lower column member, and which is spaced apart from the first lower column member and the second lower column member, a first lower bridge unit which is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the spaced spaces between the first lower column member and the first lower beam member, is formed as an empty space, and forms a step structure with the first lower beam member, a first lower bridge unit which is arranged between the second lower column member and the first lower beam member. The present invention provides a method for forming a frame of a steel frame modular unit, including a second lower bridge unit, which is arranged so that a second lower gap portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the gap spaces between the second lower beam member and the first lower beam member, is formed as an empty space, and forms a step structure with the first lower beam member.

According to another aspect of the present invention, the present invention provides a method for forming a frame of a steel frame modular unit, including a first lower column member and a second lower column member that are spaced apart from each other, a first lower beam member that is spaced apart from the first lower column member and is directly connected to the second lower column member, and a first lower bridge unit that is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the spaced spaces between the first lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member. Provides.

According to another aspect of the present invention, the present invention includes a modular unit manufacturing step of manufacturing a lower modular unit and an upper modular unit in a factory, a modular unit transport step of transporting the lower modular unit and the upper modular unit to a construction site, a lower modular unit installation step of arranging the lower modular unit at the construction site, and an upper modular unit joining step of arranging and joining the upper modular unit on the lower modular unit, wherein the lower modular unit manufacturing step includes a step of manufacturing a first lower column member and a second lower column member that are spaced apart from each other, a step of manufacturing a first lower beam member that is arranged between the first lower column member and the second lower column member and is spaced apart from the first lower column member and the second lower column member, a step of manufacturing a first lower beam member that is arranged between the first lower column member and the first lower beam member, is joined to the first lower beam member by a first lower joint plate, is directly joined to the first lower column member, and the first lower column member and the A method for constructing a steel frame modular unit is provided, comprising: a step of manufacturing a first lower bridge unit that is disposed below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the separation spaces between the first lower beam members, is formed as an empty space, and forms a step structure with the first lower beam member; and a step of manufacturing a second lower bridge unit that is disposed between the second lower column member and the first lower beam member, is connected to the second lower beam member by a second lower joint plate, is directly connected to the second lower column member, and is disposed below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, and forms a step structure with the first lower beam member.

The frame formation method and construction method of the steel frame modular unit according to the present invention have the following effects.

First, since the bridge unit connecting the column and beam is not placed at the virtual position where the beam extends in a straight line, but is placed below or above that virtual position, the virtual position is formed as an empty space, so there is an advantage in that the outdoor side (window side) joint of the modular structure using prefabricated H-beams can be constructed safely and easily indoors by utilizing that empty space.

Second, the productivity of the modular unit is improved by forming segmented and assembled units based on certain dimensions of the columns, beams, and bridge units that make up the steel frame modular unit, and there is an advantage in that the exterior side (window side) joints can be formed smoothly.

Third, the lower column member included in the lower modular unit and the upper column member included in the upper modular unit each use pre-fabricated H-shaped steel, and the column connecting member functions as a guide in the left-right and front-back directions, thereby minimizing the lifting and installation time during modular stacking, thereby improving constructability.

FIG. 1 is a perspective view illustrating a method of forming a frame of a steel frame modular unit according to one embodiment of the present invention.
FIG. 2 is a schematic diagram showing a bridge unit, each of which is connected to a beam member and a column member of a steel frame modular unit according to FIG. 1, and is arranged to form a step structure with the beam member.
FIG. 3 is an enlarged schematic diagram showing the skeleton formation method of the steel frame modular unit according to FIG. 1, in which the first lower bridge unit is connected to the first lower beam member and the first lower column member, and the first upper bridge unit is connected to the first upper beam member and the first upper column member.
FIG. 4 is an enlarged schematic diagram showing the skeleton formation method of the steel frame modular unit according to FIG. 1, in which the second lower bridge unit is connected to the first lower beam member and the second lower column member, and the second upper bridge unit is connected to the first upper beam member and the second upper column member.
FIG. 5 is a schematic diagram showing the second lower bridge unit, the first lower bridge unit, the second upper bridge unit, and the first upper bridge unit, which are included in the frame formation method of the steel frame modular unit according to FIG. 1, separately.
Fig. 6 is a schematic diagram showing the column members, beam members, and bridge units included in the frame formation method of the steel frame modular unit according to Fig. 1 being connected to form each assembly.
Fig. 7 is a schematic diagram showing the lower H-shaped steel of the first lower column member and the upper H-shaped steel of the first upper column member, which constitute the frame formation method of the steel frame modular unit according to Fig. 1, separated.
Fig. 8 is a schematic diagram showing the washer plate, a column connecting member of the frame forming method of the steel frame modular unit according to Fig. 1, separated.
Fig. 9 is a schematic diagram showing the upper end plate and connecting plate of the frame formation method of the steel frame modular unit according to Fig. 1 in isolation.
Fig. 10 is a schematic diagram showing a method of forming a frame of a steel frame modular unit according to Fig. 1, in which bolts for connecting a column connecting member to a lower column member are connected.
Fig. 11 is a schematic diagram showing a method of forming a frame of a steel frame modular unit according to Fig. 1 in which a column connecting member is inserted from top to bottom through a through hole in an upper end plate.
Fig. 12 is a schematic diagram showing the order in which the lower washer plate of a column connecting member is combined to secure the column connecting member among the frame forming methods of a steel frame modular unit according to Fig. 1.
Fig. 13 is a schematic diagram showing a method of forming a frame of a steel frame modular unit according to Fig. 1 in which a connecting plate is inserted from the top to the bottom of a column connecting member.
Fig. 14 is a schematic diagram showing the upper modular unit being inserted and installed from top to bottom through a through hole in a lower end plate among the skeleton formation methods of the steel frame modular unit according to Fig. 1.
Fig. 15 is a schematic diagram showing the upper end plate, the connecting plate, and the lower end plate being bolted together in the vertical direction among the skeletal formation methods of the steel frame modular unit according to Fig. 1.
Fig. 16 is a schematic diagram showing the point that among the frame formation methods of the steel frame modular unit according to Fig. 1, the column connecting member has the function of a left-right direction (X-axis direction) and front-back direction (Y-axis direction) guide element and the function of absorbing construction errors.
Figure 17 is a schematic diagram showing a construction method of a steel frame modular unit according to another embodiment of the present invention.

The present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the attached drawings below.

Referring to FIGS. 1 to 16, a method for forming a frame (1) of a steel frame modular unit according to one embodiment of the present invention includes a lower column member (1100) including a first lower column member (1110) and a second lower column member (1120) that are spaced apart from each other, an upper column member (1200) including a first upper column member (1210) that is placed on the first lower column member (1110) and a second upper column member (1220) that is placed on the second lower column member (1120), a column connecting member (1300), a connecting plate (1400), a lower beam member (2100), an upper beam member (2200), a lower bridge unit (2300), an upper bridge unit (2400), a lower joint plate (2500), and an upper joint plate (2600). The skeleton formation method (1) of the above steel frame modular unit is formed by four modular units (M1, M2, M3, M4) having the same structure as in Fig. 1. However, the present invention is not limited thereto, and the number and structure of the modular units forming the skeleton formation method (1) of the above steel frame modular unit can be changed.

In order to first explain the principle of forming S1 and S2, which are empty spaces between M1 and M2 shown in FIG. 2, part A of FIG. 1 regarding the lower beam member (2100), the upper beam member (2200), the lower bridge unit (2300), the upper bridge unit (2400), and the joining plate (2500) will be described first, and the joint structure (part B of FIG. 1) of the lower pillar member (1100) and the upper pillar member (1200) will be described next.

The lower beam member (2100) includes a first lower beam member (2110). The first lower beam member (2110) is disposed between the first lower column member (1110) and the second lower column member (1120). In addition, the first lower beam member (2110) is disposed spaced apart from the first lower column member (1110) and the second lower column member (1120). At this time, the first lower beam member (2110) is disposed at the center of a space where the first lower column member (1110) and the second lower column member (1120) are spaced apart from each other so that the left-right lengths of the first lower spaced portion (S1) and the second lower spaced portion (S2) are the same. However, the present invention is not limited thereto, and the first lower beam member (2110) may be formed in a structure in which it is spaced apart from one of the first lower column member (1110) and the second lower column member (1120), and directly connected to the other.

And the first lower beam member (2110) includes a first lower beam-shaped steel member including a first lower beam upper flange (2112) and a first lower beam lower flange (2113) which are arranged to face each other, and a first lower beam web (2111) which is connected to the first lower beam upper flange (2112) on one side and connected to the first lower beam lower flange (2113) on the other side. In the present embodiment, the first lower beam-shaped steel member is an H-shaped steel member (hereinafter referred to as a “third lower H-shaped steel member”) as an example, but the first lower beam-shaped steel member may be changed to a “ㄷ-shaped steel member”, a “C-shaped steel member”, or a steel member having another structure. The first lower beam member (2110) is arranged in the outer direction where the window of the steel frame modular unit (M1) is installed. And, the first lower bridge member (2110) is formed to have a length greater than the length of the left-right width of the window so that the first lower bridge unit (2310) and the second lower bridge unit (2320) do not interfere with the window.

The upper beam member (2200) includes a first upper beam member (2210). The first upper beam member (2210) is disposed between the first upper column member (1210) and the second upper column member (1220). In addition, the first upper beam member (2210) is disposed spaced apart from the first upper column member (1210) and the second upper column member (1220). At this time, the first upper beam member (2210) is disposed at the center of a space where the first upper column member (1210) and the second upper column member (1220) are spaced apart from each other so that the left-right lengths of the first upper separation portion (S1) and the second upper separation portion (S2) are the same. And the first upper member (2210) is formed to have the same length as the first lower member (2100).

Accordingly, the first lower beam member (2110) and the first upper beam member (2210), the first lower bridge unit (2310) and the first upper bridge unit (2410), the second lower bridge unit (2320) and the second upper bridge unit (2420) are arranged to face each other in the vertical direction with the same length. That is, the first spaced portion (S1) and the second spaced portion (S2) are formed to have the same size.

The lower bridge unit (2300) includes a first lower bridge unit (2310) and a second lower bridge unit (2320). The first lower bridge unit (2310) is positioned between the first lower pillar member (1110) and the first lower beam member (2110). The first lower bridge unit (2310) is connected to the first lower beam member (2110) by a first lower joint plate (2510) to be described below. And the first lower bridge unit (2310) is directly connected to the first lower column member (1110), and is disposed lower than the first lower beam member (2110) so that a first lower separation portion (S1), which is a portion where the first lower beam member (2110) is virtually horizontally extended to the first lower column member (1110) among the separation spaces between the first lower column member (1110) and the first lower beam member (2110), is formed as an empty space. However, the present invention is not limited thereto, and the first lower bridge unit (2310) may be disposed higher than the first lower beam member (2110). Through this, the first lower bridge unit (2310) forms a step structure with the first lower beam member (2110).

And the first lower bridge unit (2310) includes a first lower bridge-use steel beam including a first lower bridge unit upper flange (2312) and a first lower bridge unit lower flange (2313) which are arranged to face each other, and a first lower bridge unit web (2311) which is connected to the first lower bridge unit upper flange (2312) on one side and to the first lower bridge unit lower flange (2313) on the other side. In the present embodiment, the first lower bridge-use steel beam is an H-beam (hereinafter referred to as a “fourth lower H-beam”) as an example, but the first lower bridge-use steel beam may be changed to a “ㄷ-beam”, a “C-beam”, or a steel beam having another structure. And one side of the upper flange (2312) of the first lower bridge unit is joined to the first lower column left flange (1112) and the first lower column right flange (1113) which will be described below, respectively. And one side of the lower flange (2313) of the first lower bridge unit is joined to the first lower column left flange (1112) and the first lower column right flange (1113) respectively, spaced downward from the portion where one side of the upper flange (2312) of the first lower bridge unit is joined to the first lower column left flange (1112) and the first lower column right flange (1113).

The second lower bridge unit (2320) is positioned between the second lower column member (1120) and the first lower beam member (2110). The second lower bridge unit (2320) is connected to the first lower beam member (2110) by a second lower joint plate (2520) to be described below. And the second lower bridge unit (2320) is directly connected to the second lower column member (1120), and is disposed lower than the first lower beam member (2110) so that a second lower separation portion (S2), which is a portion where the first lower beam member (2110) is virtually horizontally extended to the second lower column member (1120) among the separation spaces between the second lower column member (1120) and the first upper beam member (2210), is formed as an empty space. However, the present invention is not limited thereto, and the second lower bridge unit (2320) may be disposed higher than the first lower beam member (2110). Through this, the second lower bridge unit (2320) forms a step structure with the first lower beam member (2110).

And the second lower bridge unit (2320) includes a second lower bridge-use steel beam including a second lower bridge unit upper flange (2322) and a second lower bridge unit lower flange (2323) which are arranged to face each other, and a second lower bridge unit web (2321) which is connected to the second lower bridge unit upper flange (2322) on one side and the second lower bridge unit lower flange (2323) on the other side. In the present embodiment, the second lower bridge-use steel beam is an H-beam (hereinafter referred to as “fifth lower H-beam”) as an example, but the second lower bridge-use steel beam may be changed to a “ㄷ-beam”, a “C-beam”, or a steel beam having another structure. And one side of the upper flange (2322) of the second lower bridge unit is joined to the second lower column left flange (1122) and the second lower column right flange (1123) which will be described below, respectively. And one side of the lower flange (2323) of the second lower bridge unit is joined to the second lower column left flange (1122) and the second lower column right flange (1123) respectively, spaced downward from the portion where one side of the upper flange (2322) of the second lower bridge unit is joined to the second lower column left flange (1122) and the second lower column right flange (1123).

The upper bridge unit (2400) includes a first upper bridge unit (2410) and a second upper bridge unit (2420). The first upper bridge unit (2410) is positioned between the first upper column member (1210) and the first upper beam member (2210). The first upper bridge unit (2410) is connected to the first upper beam member (2210) by a first upper joining plate (2610) to be described below. And the first upper bridge unit (2410) is directly coupled to the first upper column member (1210), and is disposed above the first upper beam member (2210) so that the first upper separation portion (S1), which is a portion where the first upper beam member (2210) is virtually horizontally extended to the first upper column member (1210) among the separation spaces between the first upper column member (1210) and the first upper beam member (2210), is formed as an empty space. However, the present invention is not limited thereto, and the first upper bridge unit (2410) may be disposed below the first upper beam member (2210). Through this, the first upper bridge unit (2410) forms a step structure with the first upper beam member (2210).

The second upper bridge unit (2420) is positioned between the second upper column member (1220) and the first upper beam member (2210). The second upper bridge unit (2420) is connected to the first upper beam member (2210) by a second upper joining plate (2620) to be described below. And the second upper bridge unit (2420) is directly coupled to the second upper column member (1220) and is disposed above the first upper beam member (2210) so that a second upper separation portion (S2), which is a portion where the first upper beam member (2210) is virtually horizontally extended to the second upper column member (1220) among the separation spaces between the second upper column member (1220) and the first upper beam member (2210), is formed as an empty space. However, the present invention is not limited thereto, and the second upper bridge unit (2420) may be disposed below the first upper beam member (2210). Through this, the second upper bridge unit (2420) forms a step structure with the first upper beam member (2210).

The lower joint plate (2500) includes a first lower joint plate (2510) and a second lower joint plate (2520). The first lower joint plate (2510) serves to couple (join) the first lower beam member (2110) and the first lower bridge unit (2310). The first lower joint plate (2510) includes a first lower bridge unit first joint plate (2511), a first lower bridge unit second joint plate (2512), a first lower bridge unit third joint plate (2513), and a first lower beam member first joint plate (2514). Each of the first lower bridge unit first joining plate (2511), the first lower bridge unit second joining plate (2512), the first lower bridge unit third joining plate (2513), and the first lower beam member first joining plate (2514) has a structure similar to the first pillar connecting member lower washer plate (1314) illustrated in (b) of FIG. 8, which will be described below.

The first lower bridge unit first joining plate (2511) is arranged to face the first lower column web (1111) on the other side opposite to the side where the first lower bridge unit (2310) is joined to the first lower column member (1110). In addition, the first lower bridge unit first joining plate (2511) is joined to the first lower bridge unit upper flange (2312), the first lower bridge unit lower flange (2313), and the first lower bridge unit web (2311) so as to be in close contact with each other. The first lower bridge unit first joining plate (2511) is arranged to stand upright in the vertical direction. The first lower bridge unit first joining plate (2511) has a rectangular plate structure.

The first lower bridge unit second joining plate (2512) is positioned to be erected on the first lower bridge unit first joining plate (2511). The first lower bridge unit second joining plate (2512) has a rectangular plate structure. The lower surface of the first lower bridge unit second joining plate (2512) is seated on and joined to the upper surface of the first lower bridge unit first joining plate (2511). The first lower bridge unit second joining plate (2512) has first lower bridge unit second joining plate fastening holes formed in the left-right direction (horizontal direction) to facilitate bolt fastening with the first lower beam member first joining plate (2514). A plurality of first lower bridge unit second joining plate fastening holes are formed to be spaced apart from each other.

The first lower bridge unit third joining plate (2513) is placed in close contact with the first lower bridge unit upper flange (2312) so as to be parallel to the first lower bridge unit upper flange (2312). One end of the first lower bridge unit third joining plate (2513) is joined to the first lower bridge unit second joining plate (2512). To facilitate bolt connection with the first lower bridge unit upper flange (2312), the first lower bridge unit third joining plate fastening holes are formed in the upper and lower directions at positions facing each of the two sides of the first lower bridge unit upper flange (2312) based on the first lower bridge unit web (2311). The first lower bridge unit third joint plate fastening holes are formed in multiple numbers spaced apart from each other. In addition, a reinforcing plate may be further included on the first lower bridge unit third joint plate (2513) so as to be in close contact with the first lower bridge unit second joint plate (2512) and the first lower bridge unit third joint plate (2513), respectively.

The first lower beam member first joining plate (2514) is disposed between the first lower beam member (2110) and the first lower bridge unit second joining plate (2512). The first lower bridge unit second joining plate (2512) is disposed to stand facing the first lower beam member first joining plate (2514). The first lower beam member first joining plate (2514) is joined on one side to the first lower beam upper flange (2112), the first lower beam lower flange (2113), and the first lower beam web (2111), respectively, and on the other side to the first lower bridge unit second joining plate (2512). The first lower beam member first joining plate (2514) has a first lower beam member first joining plate fastening hole formed in the left-right direction (horizontal direction) to facilitate bolt connection with the first lower bridge unit second joining plate (2512). The first lower beam member first joining plate fastening hole is formed at a position corresponding to the first lower bridge unit second joining plate fastening hole.

The second lower joint plate (2520) includes a second lower bridge unit first joint plate (2521), a second lower bridge unit second joint plate (2522), a second lower bridge unit third joint plate (2523), and a second lower beam member first joint plate (2524). The structure in which the second lower joint plate (2520) is coupled to the first lower beam member (2110) and the second lower bridge unit (2320) is similar to the structure in which the first lower joint plate (2510) is coupled to the first lower beam member (2110) and the first lower bridge unit (2310), and therefore, a detailed description thereof will be omitted.

The upper joining plate (2600) includes a first upper joining plate (2610) and a second upper joining plate (2620). The first lower joining plate (2610) serves to couple (join) the first upper beam member (2210) and the first upper bridge unit (2410). The first upper joining plate (2610) includes a first upper bridge unit first joining plate (2611), a first upper bridge unit second joining plate (2612), a first upper bridge unit third joining plate (2613), and a first upper beam member first joining plate (2614). The structure in which the first lower joint plate (2610) is coupled with the first upper beam member (2210) and the first upper bridge unit (2410) is similar to the structure in which the first lower joint plate (2510) is coupled with the first lower beam member (2110) and the first lower bridge unit (2310), so a detailed description thereof will be omitted.

And the second upper joint plate (2620) includes a second upper bridge unit first joint plate (2621), a second upper bridge unit second joint plate (2622), a second upper bridge unit third joint plate (2623), and a second upper beam member second joint plate (2624). The structure in which the second lower joint plate (2620) is coupled to the first upper beam member (2210) and the second upper bridge unit (2420) is similar to the structure in which the first lower joint plate (2510) is coupled to the first lower beam member (2110) and the first lower bridge unit (2310), so a detailed description thereof will be omitted.

And the first lower column member (1110) includes a first lower column stiffener (1115) to improve the bonding strength with the first lower bridge unit (2310). The first lower column stiffener (1115) includes a first lower column first stiffener (1115a), a first lower column second stiffener (1115b), and a first lower column third stiffener (1115c).

Hereinafter, the joint structure of the lower column member (1100) of the lower modular unit (M1) and the upper column member (1200) of the upper modular unit (M3) will be described with reference to FIGS. 7 to 16.

The above-described steel frame modular unit's frame formation method (1) includes a steel frame modular unit's joining structure that joins a lower modular unit including the lower column member (1100) and an upper modular unit including the upper column member (1200) using the column joining member (1300) and the joining plate (1400). The joining structure of the steel frame modular unit can be applied to various fields such as houses, hotels, commercial buildings, and officetels. In addition, the inside and the outside, the left and the right in the following mean when looking straight at the web of the column members from the outside of the lower modular unit or the outside of the upper modular unit in the inward direction.

And for convenience of explanation, the joint structure of the first lower column member (1110) arranged on the front side among the lower column members (1100) of the lower modular unit (M1), the second lower column member (1120) arranged on the front side among the lower column members (1100) of the lower modular unit (M2), the first upper column member (1210) arranged on the front side among the upper column members (1200) of the upper modular unit (M3), and the second lower column member arranged on the front side among the upper column members (1200) of the upper modular unit (M4) will be described as an example.

The above-described lower column member (1100) includes a first lower column member (1110) and a second lower column member (1120). The first lower column member (1110) includes a first lower column-shaped steel member having a first lower column left flange (1112) and a first lower column right flange (1113) that are arranged to face each other, and a first lower column web (1111) having one side connected to the first lower column left flange (1112) and the other side connected to the first lower column right flange (1113). In the present embodiment, the first lower column-shaped steel member is an H-shaped steel member (hereinafter referred to as “first lower H-shaped steel member”) as an example, but the first lower column-shaped steel member may be changed to a “ㄷ-shaped steel member,” a “C-shaped steel member,” or a steel member having another structure.

And the first lower column member (1110) has a first upper end plate (1114) arranged at the upper end of the first lower H-shaped steel. The first upper end plate (1114) has a rectangular plate structure, and a first through hole (1114a) is formed in the vertical direction at a portion forward of the first lower column web (1111). The first through hole (1114a) has a rectangular shape. And the first upper end plate (1114) has a plurality of first upper end plate fastening holes (1114b) formed so as to be spaced apart in the vertical direction so as to enable bolt coupling at a position spaced apart in the forward direction from the first through hole (1114a). Two first upper end plate fastening holes (1114b) are formed so as to be spaced apart in the left and right directions. However, the present invention is not limited thereto, and the number of the first upper end plate fastening holes (1114b) can be changed.

And, as shown in (a) of Fig. 7, the first lower H-beam has a first lower column web fastening hole (1111a) formed in the front-back direction at the upper portion. The first lower column web fastening hole (1111a) is formed in a structure that penetrates in the front-back direction for bolt connection at a position corresponding to the first center plate portion fastening hole (1311c) of the first column connecting member (1310) to be described below. The first lower column web fastening holes (1111a) are formed in groups of four so as to form a rectangular shape when connected to each other. However, the present invention can change the number and formation structure of the first lower column web fastening holes (1111a). The first lower column web fastening hole (1111a) is formed to facilitate the penetration of a bolt (b) when connecting the lower portion of the column connecting member (1300) to the first lower column web (1111).

The second lower column member (1120) includes a second lower column section having a second lower left flange (1122) and a second lower column right flange (1123) that are arranged to face each other, and a second lower column web (1121) that is connected to the second lower column left flange (1122) on one side and to the second lower column right flange (1123) on the other side. In this embodiment, the second lower column section is an H-shaped steel (hereinafter referred to as “second lower H-shaped steel”) as an example, but the second lower column section can be changed to a “ㄷ-shaped steel”, a “C-shaped steel”, or a steel section having another structure. In addition, the second lower column member (1120) has a second upper end plate (1124) arranged on the upper end of the second lower H-shaped steel. The second upper end plate (1124) has a rectangular plate structure, and a fourth through hole (1124a) is formed in the vertical direction in the forward portion of the second lower pillar web (1121). The fourth through hole (1124a) has a rectangular shape.

And, as shown in (a) of Fig. 7, the second lower H-beam has a second lower column web fastening hole (1121a) formed in the front-back direction at the upper portion. The four second lower column web fastening holes (1121a) are formed spaced apart from each other so as to form a rectangular shape when connected to each other. However, the present invention can change the number and formation structure of the second lower column web fastening holes (1121a). The second lower column web fastening hole (1121a) is formed to facilitate the penetration of a bolt (b) when connecting the lower portion of the column connecting member (1300) to the second lower column web (1121).

The second lower pillar member (1120) is positioned adjacent to the right side of the first lower pillar member (1110). The second lower pillar member (1120) is formed with the same structure as the first lower pillar member (1110). However, the present invention is not limited thereto, and the second lower pillar member (1120) may be changed to a structure different from that of the first lower pillar member (1110).

The upper column member (1200) is arranged to be spaced apart from the upper portion of the lower column member (1100). The upper column member (1200) includes a first upper column member (1210) and a second upper column member (1220). The first upper column member (1210) includes a first upper column left flange (1212) and a first upper column right flange (1213) that are arranged to face each other, and a first upper column web (1211) that is connected to the first upper column left flange (1212) on one side and connected to the first upper column right flange (1213) on the other side.

And the first upper column member (1210) has a first lower end plate (1214) arranged at the lower end of the first upper H-shaped steel. The first lower end plate (1214) has a rectangular plate structure, and a second through hole (1214a) is formed in the vertical direction at a portion forward of the first upper column web (1211). The second through hole (1214a) has a rectangular shape. The first lower end plate (1214) is formed with a plurality of first lower end plate fastening holes (1214a) spaced apart in the vertical direction so as to enable bolt coupling at a position spaced apart in the forward direction from the second through hole (1214a). Two first lower end plate fastening holes (1214b) are formed spaced apart in the left and right directions. However, the present invention is not limited thereto, and the number of the first lower end plate fastening holes (1214b) can be changed.

And, as shown in (b) of Fig. 7, the first upper H-beam has first upper column web fastening holes (1211a) formed therein, which have a structure that penetrates in the front-back direction for bolt connection, at positions corresponding to the first left fastening groove (1311a) and positions corresponding to the first right fastening groove (1311b). Four of the first upper column web fastening holes (1211a) are formed spaced apart from each other so that they form a rectangular shape when connected to each other. However, the present invention can change the number and formation structure of the first upper column web fastening holes (1211a). The first upper column web fastening holes (1211a) are formed to facilitate the bolt (b) penetration when the upper portion of the column connecting member (1300) is brought into close contact with the first upper column web (1211).

The second upper column member (1220) includes a second upper H-shaped steel having a second upper column left flange (1222) and a second upper column right flange (1223) that are arranged to face each other, and a second upper column web (1221) that is connected to the second upper column left flange (1222) on one side and connected to the second upper column right flange (1223) on the other side. In addition, the second upper column member (1220) has a second lower end plate (1224) arranged at the lower end of the second upper H-shaped steel. The second lower end plate (1224) has a rectangular plate structure, and a fifth through hole (1224a) is formed in the vertical direction at a portion forward of the second upper column web (1221). The above fifth through hole (1224a) has a rectangular shape.

And, as shown in (b) of Fig. 7, the second upper H-beam has a second upper column web fastening hole (1221a) formed in the front-back direction at the bottom. Four of the second upper column web fastening holes (1221a) are formed spaced apart from each other so that they form a rectangular shape when connected to each other. However, the present invention can change the number and formation structure of the second upper column web fastening holes (1221a). The second upper column web fastening hole (1221a) is formed to allow the bolt (b) to easily penetrate when the upper portion of the column connecting member (1300) is brought into close contact with the second upper column web (1221).

The second upper column member (1220) is positioned adjacent to the right side of the first upper column member (1210). The second upper column member (1220) is formed with the same structure as the first upper column member (1210). However, the present invention is not limited thereto, and the second upper column member (1220) may be changed to a structure different from that of the first upper column member (1210).

The above-mentioned column connecting member (1300) includes a first column connecting member (1310) and a second column connecting member (1320). The first column connecting member (1310) passes through the first through hole (1114a), the second through hole (1124a), and the third through hole (1410a) formed in the first connecting plate (1410) and is connected to the first lower H-shaped steel at the lower portion. In addition, the upper portion of the first column connecting member (1310) is formed with a groove structure in which a bolt (b) penetrating from the rear portion toward the front portion of the first upper column web (1211) can be seated from the upper portion toward the lower portion. That is, the first pillar connecting member (1310) functions to guide the position where the first upper pillar member (1210) is to be seated on the first lower pillar member (1110), thereby minimizing the time for seating the first upper pillar member (1210) on the first lower pillar member (1110). Accordingly, the first pillar connecting member (1310) is fixed to the first upper H-shaped steel by being inserted into the space spaced between the front surface of the first upper pillar web (1211) and the upper washer plate (1315) of the first pillar connecting member.

The first pillar connecting member (1310) includes a first center plate portion (1311), a first left wing portion (1312), a first right wing portion (1313), a first pillar connecting member lower washer plate (1314), a first pillar connecting member upper washer plate (1315), and a first welding portion (1316). The lower portion of the rear portion of the first center plate portion (1311) is in close contact with the upper portion of the front portion of the first lower pillar web (1111). In addition, the upper portion of the rear portion of the first center plate portion (1311) is in close contact with the lower portion of the front portion of the first upper pillar web (1211). The first center plate portion (1311) has a rectangular plate shape.

And referring to FIG. 8, the first center plate portion (1311) is formed with a first left fastening groove (1311a), a first right fastening groove (1312a), and a first center plate portion fastening hole (1311c). The first left fastening groove (1311a) is formed to extend downward from a position spaced a set length to the left from the center of the upper end of the first center plate portion (1311). In addition, the first left fastening groove (1311a) has a structure that penetrates in the front-back direction. That is, the first left fastening groove (1311a) has a structure similar to a "U" when viewed from the front.

The first right fastening groove (1311b) is formed to extend downward from a position spaced apart from the center of the upper end of the first center plate portion (1311) by a set length to the right. In addition, the first right fastening groove (1311b) has a structure that penetrates in the front-back direction. That is, the first right fastening groove (1311b) has a structure similar to a “U” when viewed from the front. In addition, the first right fastening groove (1311b) is formed to have a structure that is symmetrical with respect to the first left fastening groove (1311a) and the first left fastening groove (1311a) based on the center of the upper end of the first center plate portion (1311).

At this time, the upper left portion of the first left fastening groove (1311a) is not a right-angled structure, but has a structure formed slanted downward so that the height decreases as it goes toward the center of the first left fastening groove (1311a). In addition, the upper right portion of the first left fastening groove (1311a) is not a right-angled structure, but has a structure formed slanted downward so that the height decreases as it goes toward the center of the first left fastening groove (1311a).

In addition, the upper left portion of the first right fastening groove (1311b) is not a right-angled structure, but has a structure that is formed slanted downward so that the height decreases toward the center of the first right fastening groove (1311b). And, the upper right portion of the first right fastening groove (1311b) is not a right-angled structure, but has a structure that is formed slanted downward so that the height decreases toward the center of the first right fastening groove (1311b). This is to ensure that, when the first upper pillar member (1210) is seated on the first lower pillar member (1110), the bolt (b) that penetrates from the rear portion of the first upper pillar web (1211) toward the front portion can easily be seated in the first left fastening groove (1311a) and the first right fastening groove (1311b).

And the first center plate portion fastening hole (1311c) is formed in a plurality in the front-back direction at the lower part of the first center plate portion (1311) where the first center plate portion (1311) is in close contact with the first lower column web (1111) for bolt connection with the first lower column web (1111). Four first center plate portion fastening holes (1311c) are formed so that when connected to each other they form a rectangular shape. However, the present invention is not limited thereto, and the number and formation structure of the first center plate portion fastening holes (1311c) can be changed.

The first center plate part (1311) includes a first center plate part main body (1311`) and a first welding part (1316). The first center plate part main body (1311`) is formed as a plate structure having an approximately rectangular shape. The first center plate part main body (1311`) has a slanted structure such that the thickness thereof becomes thinner toward the edge in a portion corresponding to the left-right width where the first left wing part (1312) is in close contact with the first center plate part (1311), thereby forming a first left separation space between the first left wing part (1312) and the rear surface. And, the first center plate body (1311`) has a slanted structure so that the thickness of the portion corresponding to the left-right width where the first right wing portion (1313) is in close contact with the first center plate portion (1311) becomes thinner toward the edge, thereby forming a first right separation space between the first right wing portion (1313) and the rear surface.

The first left welding portion (1316a) is a portion where the first left space between the rear surface of the first left wing portion (1312) and the left side of the first center plate portion main body (1311`) is welded using a welding material. And the first right welding portion (1316b) is a portion where the first right space between the rear surface of the first right wing portion (1313) and the right side of the first center plate portion main body (1311`) is welded using a welding material. In this embodiment, the first center plate portion (1311), the first left wing portion (1312), and the first right wing portion (1313) are welded as an example, but the first left wing portion (1312) and the first right wing portion (1313) may also be formed by bending both edges of the first center plate portion (1311).

The first left wing portion (1312) is integrally connected to the left end of the front portion of the first center plate portion (1311). The first left wing portion (1312) protrudes forward so as to face the left flange (1112) of the first lower column in parallel. In addition, the first lower column left wing portion (1312) extends in the vertical direction to the same length as the first center plate portion (1311).

The first right wing part (1313) is integrally connected to the right end of the front part of the first center plate part (1311). The first right wing part (1313) protrudes forward so as to face the right flange (1113) of the first lower pillar in parallel. In addition, the first lower pillar right wing part (1313) extends in the vertical direction to the same length as the first center plate part (1311).

The first pillar connecting member lower washer plate (1314) has a rectangular plate structure. The first pillar connecting member lower washer plate (1314) is formed with a plurality of first pillar connecting member lower washer plate fastening holes (1314a) spaced apart from each other at positions facing the positions where the first lower pillar web fastening holes (1111a) are formed. The first pillar connecting member lower washer plate fastening holes (1314a) are formed four spaced apart from each other so as to form a rectangular shape when connected. However, the number and formation structure of the first pillar connecting member lower washer plate fastening holes (1314a) can be changed.

The first column connecting member lower washer plate (1314) is fitted into a bolt that passes through the first lower column web fastening hole (1111a) and the first center plate portion fastening hole (1311c) from the rear to the front of the first lower column web (1211). In addition, the first column connecting member lower washer plate (1314) is fixed by a nut that is combined with a bolt that passes through the first lower column web fastening hole (1111a), the first center plate portion fastening hole (1311c), and the first column connecting member lower washer plate fastening hole (1314a). At this time, the first column connecting member lower washer plate (1314) is in close contact with the lower portion of the front portion of the first column connecting member (1310).

The upper washer plate (1315) of the first pillar connecting member has a rectangular plate structure. The upper washer plate (1315) of the first pillar connecting member has a plurality of first pillar connecting member upper washer plate fastening holes (1315a) formed at positions facing the positions where the first upper pillar web fastening holes (1211a) are formed. The upper washer plate fastening holes (1315a) of the first pillar connecting member are formed in groups of four spaced apart from each other so as to form a rectangular shape when connected. However, the number and formation structure of the upper washer plate fastening holes (1315a) of the first pillar connecting member can be changed.

And the upper washer plate (1315) of the first column connecting member is fixed by a nut (n) that is coupled in a state where the bolt (b) that penetrates the first upper column web fastening hole (1211a) also penetrates the upper washer plate fastening hole (1315a) of the first column connecting member. And the first upper column web (1211) and the upper washer plate (1315) of the first column connecting member are arranged to be spaced apart in the front-back direction. That is, a front-back space is formed between the first upper column web (1211) and the upper washer plate (1315) of the first column connecting member. The front-back direction separation space between the first upper column web (1211) and the first column connecting member upper washer plate (1315) has a function of guiding the first column connecting member (1310) to a position where the first upper column member (1210) is inserted. That is, the first center plate portion (1311) is properly coupled with the first upper column member (1210) in the front-back direction simply by being inserted into the front-back direction separation space between the first upper column web (1211) and the first column connecting member upper washer plate (1315), so the front-back direction separation space between the first upper column web (1211) and the first column connecting member upper washer plate (1315) has a guiding function in the Y-axis direction in FIG. 16. That is, the frame formation method (1) of the above steel frame modular unit has the advantage of improving constructability by minimizing the lifting and installation time of the upper modular unit by having two-axis guide elements in the X-axis direction and the Y-axis direction in Fig. 16.

At this time, the upper washer plate (1315) of the first pillar connecting member is inserted from the bottom to the top in a space spaced apart from the front of the first upper pillar web (1211). At this time, the bolt (b) passing through the first upper pillar web fastening hole (1211a) and the upper washer plate hole (1315a) of the first pillar connecting member is lowered from the top to the bottom in the first left fastening groove (1311a) and the second left fastening groove (1311b) formed in the first center plate portion (1311) and is seated. And the upper part of the rear part of the first pillar connecting member (1310) (first center plate part (1311)) is in close contact with the front part of the first upper pillar web (1211), and the upper part of the front part of the first pillar connecting member (1310) (first center plate part (1311)) is in close contact with the upper washer plate (1315) of the first pillar connecting member. This is possible by tightening a bolt (b) that penetrates the first upper pillar web fastening hole (1211a) and the upper washer plate hole (1315a) of the first pillar connecting member from the rear side to the front side and a nut (n) that is coupled at the front side of the upper washer plate (1315) of the first pillar connecting member.

Referring to Fig. 16, the first pillar connecting member (1310) forms a space with respect to the inner front surface of each of the first through holes (1114a) to the third through holes (1410a). In addition, the first pillar connecting member (1310) is arranged to form a space with respect to the inner left side and the inner right side of each of the first through holes (1114a) to the third through holes (1410a). That is, the first pillar connecting member (1310) absorbs construction errors in the front-rear direction (Y-axis direction) through the space with respect to the inner front surface of each of the first through holes (1114a) to the third through holes (1410a). And the first pillar connecting member (1310) absorbs construction errors in the left-right direction (X-axis direction) through a space between the inner left side and the inner right side of each of the first through hole (1114a) to the third through hole (1410a). In the present embodiment, the construction error absorption length in the front-back direction (Y-axis direction) is 8 mm, and the construction error absorption length in the left-right direction (X-axis direction) is 12 mm, 6 mm on the left and right sides respectively. However, the present invention is not limited thereto, and the construction error absorption length can be changed.

The second column connecting member (1320) has the same size and structure as the first column connecting member (1310). Therefore, the structure in which the second column connecting member (1320) is coupled to the second lower column member (1120) and the second upper column member (1220) is the same as the structure in which the first column connecting member (1310) is coupled to the first lower column member (1110) and the first upper column member (1210). Therefore, a detailed description of the structure of the second column connecting member (1320) and the structure in which the second column connecting member (1320) is coupled to the second lower column member (1120) and the second upper column member (1220) is omitted.

The first connecting plate (1400) includes a first connecting plate (1410) and a second connecting plate (1420). The first connecting plate (1410) has a rectangular shape and is positioned to be in close contact between the first upper end plate (1114) and the first lower end plate (1214). The first connecting plate (1410) has a third through hole (1410a) formed in the vertical direction at a front portion of the first lower pillar web (1111). The first connecting plate (1410) has a plurality of first connecting plate fastening holes (1410b) formed in the vertical direction so as to be bolt-coupled at a position spaced apart from the third through hole (1410a) in the forward direction. Two first connecting plate fastening holes (1410b) are formed so as to be spaced apart from each other in the left and right directions. However, the present invention is not limited thereto, and the number of the first connecting plate fastening holes (1410b) can be changed. At this time, the first upper end plate fastening hole (1114a), the first lower end plate fastening hole (1214a), and the first connecting plate fastening hole (1410b) are arranged in a straight line in the vertical direction.

The second connecting plate (1420) has a rectangular shape and is positioned so as to be in close contact between the second upper end plate (1124) and the second lower end plate (1224). The second connecting plate (1420) has a sixth through hole (1420a) formed in the vertical direction at the front side of the second lower pillar web (1121). The second connecting plate (1420) is formed to have the same size and structure as the first connecting plate (1410). In the present embodiment, the first connecting plate (1410) and the second connecting plate (1420) are integrally connected as one member. However, the present invention is not limited thereto, and the first connecting plate (1410) and the second connecting plate (1420) may be separate members.

The above steel frame modular unit's frame formation method (1) has the advantage of easy standardization and improved productivity by using existing H-beams and column connection members (1300) and connection plates (1400) that are connected to the existing H-beams, so that the same shape and dimensions can be applied at any location. In addition, compared to the existing steel frame modular unit's frame formation method, the structure is simple, so the design difficulty is low, and the construction company's design management is easy. In addition, the steel frame modular unit's frame formation method (1) has the advantage of improved stability by minimizing the concentration of load at a specific location.

Referring to FIG. 6, the first lower beam member (2210) may be a left-right first lower ceiling beam member that is included in the ceiling of the lower modular unit and arranged in the left-right direction, the first lower bridge unit (2310) may be a left-right first lower ceiling bridge unit that is included in the ceiling of the lower modular unit and arranged in the left-right direction, and the second lower bridge unit (2320) may be a left-right second lower ceiling bridge unit that is included in the ceiling of the lower modular unit and arranged in the left-right direction. And the first lower beam member (2200) may include a left-right first lower floor beam member (2110b) that is included in the bottom of the lower modular unit and is arranged in the left-right direction, a front-back first lower ceiling beam member (2110c) that is included in the ceiling of the lower modular unit and is arranged in the front-back direction, and a front-back first lower floor beam member (2110d) that is included in the bottom of the lower modular unit and is arranged in the front-back direction.

And the second lower bridge unit (2320) may include a left-right second lower floor bridge unit (2320b) that is included in the bottom of the lower modular unit and is arranged in the left-right direction, a front-back second lower ceiling bridge unit (2320a) that is included in the ceiling of the lower modular unit and is arranged in the front-back direction, and a front-back first lower floor bridge unit (2320d) that is included in the bottom of the lower modular unit and is arranged in the front-back direction.

And the first lower pillar member (1110) may include a second lower pillar member lower unit (1110a) that is erected vertically and is connected to the second lower floor bridge unit (2320b) in the left and right directions and the second lower floor bridge unit (2320d) in the front and rear directions, a second lower pillar member upper unit (1110b) that is erected vertically and is connected to the first lower ceiling bridge unit (2320a) in the left and right directions and the first lower ceiling bridge unit (2320c) in the front and rear directions, and a second lower pillar member middle unit (1110c) that is erected vertically and is connected so that the lower portion is seated on the upper portion of the second lower pillar member lower unit (1110a), and the upper portion is connected to the lower portion (1110b) of the second lower pillar member upper unit.

That is, the second lower pillar member lower unit (1110a), the left-right second lower floor bridge unit (2320b), and the front-back second lower floor bridge unit (2320d) form a first assembly unit formed integrally. In addition, the second lower pillar member upper unit (1110b), the left-right second lower ceiling bridge unit (2320a), and the front-back second lower ceiling bridge unit (2320c) form a second assembly unit formed integrally.

Referring to FIG. 10, the front (inner) first lower column member (1110) of the lower modular unit (M1) and the front (inner) second lower column member (1120) of the lower modular unit (M2) are arranged so that their flanges face each other. That is, the right flange (1113) of the first lower column member of M1 and the left flange (1122) of the second lower column member of M2 are arranged so that they face each other. However, referring to FIG. 1, the rear (outer) first lower column member (1110) of the lower modular unit (M1) and the rear (inner) second lower column member (1120) of the lower modular unit (M2) are arranged so that their webs face each other. That is, the first lower column member web (1111) of the M1 and the second lower column member web (1121) of the M2 are arranged to face each other. Therefore, when connecting the front first lower column member (1110) of the M1 and the front second lower column member (1120) of the M2 in the left-right direction, a connecting plate in the form of (b) of FIG. 10 is used, but when connecting the rear first lower column member (1110) of the M1 and the rear second lower column member (1120) of the M2 in the left-right direction, a connecting plate in the form of (c) of FIG. 10 is used. The rear first lower column member (1110) of M1 is identical to the front first lower column member (1110) of M1 rotated 90 degrees clockwise, and the rear second lower column member (1120) of M2 is identical to the front second lower column member (1120) of M2 rotated 90 degrees counterclockwise.

Below, a method for constructing a structure (1) of a steel frame modular unit according to FIGS. 1 to 16 is described.

Referring to Fig. 17, a method for constructing a steel frame modular unit (S100) includes a modular unit manufacturing step (S110), a modular unit transport step (S120), a lower modular unit installation step (S130), and an upper modular unit joining step (S140). The modular unit manufacturing step (S110) is a process of manufacturing a modular unit in advance at a factory. The modular unit manufacturing step (S110) includes a lower modular unit manufacturing step including a step of manufacturing a lower column member (1100) including a first lower column member (1110) and a second lower column member (1120), and a step of manufacturing a lower beam member (2100). And it includes an upper modular unit manufacturing step including a step of manufacturing an upper column member (1200) including a first upper column member (1210) and a second upper column member (1220) and a step of manufacturing an upper beam member (2200). The modular unit manufacturing step (S110) includes a step of manufacturing the column connecting member (1300), the connecting plate (1400), the lower bridge unit (2300), the upper bridge unit (2400), the lower connecting plate (2500), and the upper connecting plate (2600).

And the lower modular unit manufacturing step includes a lower column member installation step, a lower bridge unit joining step, and a lower beam member joining step. In the lower column member installation step, the first lower column member (1110) and the second lower column member (1120) are installed to be spaced apart from each other. And in the lower bridge unit joining step, the first lower bridge unit (2310) is joined to the first lower column member (1110), and the second lower bridge unit (2320) is joined to the second lower column member (1120). And in the lower beam member joining step, the first lower beam member (2110) is joined to the first lower bridge unit (2310) and the second lower bridge unit (2320) using a lower joining plate (2500), respectively.

And the upper modular unit manufacturing step includes an upper column member installation step, an upper bridge unit joining step, and an upper beam member joining step. In the upper column member installation step, the first upper column member (1110) and the second upper column member (1120) are installed to be spaced apart from each other. And in the upper bridge unit joining step, the first upper bridge unit (2410) is joined to the first upper column member (1210), and the second upper bridge unit (2420) is joined to the second upper column member (1220). And in the lower beam member joining step, the first upper beam member (2210) is joined to the first upper bridge unit (2410) and the second upper bridge unit (2420) using an upper joining plate (2600), respectively.

The above modular unit transport step (S120) is a process of moving the lower modular unit and the upper modular unit manufactured at the factory and the materials required for on-site construction to the construction site.

The above lower modular unit installation step (S130) is a process of stacking the lower modular unit and the upper modular unit that have been transported from the construction site. The above lower modular unit installation step (S130) includes a lower modular unit arrangement step, a first column connecting member arrangement step, and a first connecting plate arrangement step. In the first column connecting member arrangement step, the lower portion of the first column connecting member (1310) is installed so as to pass through the first through hole (1114a) from top to bottom and be coupled to the first lower H-beam. At this time, a bolt (b) is pre-inserted from the rear to the front through the first lower column web fastening hole (1111a) in the first lower column web (1111), and a bolt (b) that is pre-installed is inserted from the rear to the front through the first center plate fastening hole (1311c) formed in the lower portion of the first column connecting member (1310).

And the lower washer plate (1314) of the first pillar connecting member is joined so as to be in close contact with the lower portion of the first pillar connecting member (1310). At this time, a bolt (b) protruding through the first center plate portion joining hole (1311c) is inserted through the first pillar connecting member lower washer plate joining hole (11314a) formed in the first pillar connecting member lower washer plate (1314). And a washer (w) and a nut (n) are sequentially fitted into the bolt (b) protruding through the first pillar connecting member lower washer plate joining hole (11314a) so as to closely join the lower portion of the first pillar connecting member (1310) with the first pillar connecting member lower washer plate (1314).

In the above first connecting plate arrangement step, the first connecting plate (1410) having a third through hole (1410a) formed in the vertical direction in the front portion of the first lower pillar web (1111) is arranged to pass through the first pillar connecting member (1310) from top to bottom through the third through hole (1410a) and be in close contact with the first upper end plate (1114).

In the above upper modular unit joining step, the first upper H-beam is placed so as to be in close contact with the first connecting plate (1410) by passing the first column connecting member (1310) from top to bottom through the second through hole (1214a) formed in the first lower end plate (1224). Then, the upper portion of the first column connecting member (1310) is placed in close contact with the first upper H-beam. At this time, the upper portion of the first column connecting member (1310) arranged in the front-rear space between the first upper column web (1211) and the first column connecting member upper washer plate (1315) may be spaced apart from and not in close contact with the first upper column web (1211) and the first column connecting member upper washer plate (1315) in the front-rear direction. Therefore, by tightening the nut that is pre-attached to the front side of the upper washer plate (1315) of the first pillar connecting member, the front side of the first pillar connecting member (1310) is brought into close contact with the rear side of the upper washer plate (1315) of the first pillar connecting member, and the rear side of the first pillar connecting member (1310) is brought into close contact with the front side of the first upper pillar web (1211).

And the first upper end plate (1114), the first connecting plate (1410), and the first lower end plate (1214) are bolted together to connect the lower modular unit and the upper modular unit.

While the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

1: Structure formation method of steel frame modular units
1100: Lower column member
1110: First lower column member
1110a: Lower unit of the first lower column member
1110b: Upper unit of the first lower column member
1110c: Middle unit of the first lower column member
1111: First lower column web
1111a: First lower column web fastening hole
1112: Left flange of the first lower column
1113: Right flange of the first lower column
1114: First upper end plate
1115: First lower column stiffener
1120: Second lower column member
1121: Second lower column web
1122: Left flange of the second lower column
1123: Right flange of the second lower column
1124: Second upper end plate
1200: Upper column member
1210: First upper column member
1211: First upper column web
1211a: First upper column web fastening hole
1212: Left flange of the first upper column
1213: Right flange of the first upper column
1214: First lower end plate
1215: First upper column stiffener
1220: Second upper column member
1221: Second upper column web
1222: Left flange of the second upper column
1223: Right flange of the second upper column
1224: Second lower end plate
1300: Column connecting member
1310: First pillar connecting member
1311: First center plate section
1311a: First left fastening groove
1311b: First right fastening groove
1311c: First center plate fastening hole
1312: First left wing section
1313: First right wing section
1314: Lower washer plate of the first column connecting member
1314a: First pillar connecting member lower washer plate fastening hole
1315: Upper washer plate of the first column connecting member
1315a: First pillar connecting member upper washer plate fastening hole
1316: First weld
1316a: First left weld
1316b: First right weld
1320: Second pillar connecting member
1400: Connecting Plate
1410: First connecting plate
1410a: Third penetration hole
1410b: First connecting plate fastening hole
1420: Second connecting plate
1420a: 6th penetration hole
1420b: Second connecting plate fastening hole
2100: Lower beam member
2110: First lower beam member
2110a: Left and right first lower ceiling beam member
2110b: Left and right first lower floor beam members
2110c: First lower ceiling beam member in the forward and backward direction
2110d: Forward-backward first lower floor beam member
2111: First Lower Bow Web
2112: First lower compensation upper flange
2113: Lower flange of the first lower beam
2200: Upper beam member
2210: First upper beam member
2210a: Left and right first upper ceiling beam member
2210b: Left and right first upper floor beam member
2210c: Front-to-back first upper ceiling beam member
2210d: Front-rear first upper floor beam member
2211: First Upper Bow Web
2212: First upper flange
2213: Lower flange of the first upper beam
2300: Lower bridge unit
2310: First lower bridge unit
2310a: Left and right first lower ceiling bridge unit
2310b: Left and right first lower floor bridge unit
2310c: Front-to-back first lower ceiling bridge unit
2310d: Front and rear first lower floor bridge unit
2320: Second lower bridge unit
2400: Upper bridge unit
2410: First upper bridge unit
2410a: Left and right first upper ceiling bridge unit
2410b: Left and right first upper floor bridge unit
2410c: Front-to-back first upper ceiling bridge unit
2410d: Front-rear first upper floor bridge unit
2420: Second upper bridge unit
2500: Lower joint plate
2510: First lower joint plate
2511: First lower bridge unit first joint plate
2512: First lower bridge unit second joint plate
2513: 1st lower bridge unit 3rd joint plate
2514: First lower beam member first joint plate
2520: Second lower joint plate
2521: Second lower bridge unit first joint plate
2522: Second lower bridge unit second joint plate
2523: Second lower bridge unit third joint plate
2524: First lower beam member second joint plate
2600: Upper joint plate
2610: First upper joint plate
2611: First upper bridge unit first joint plate
2612: First upper bridge unit second joint plate
2613: 1st upper bridge unit 3rd joint plate
2614: First upper beam member first joint plate
2620: Second upper joint plate
2621: Second upper bridge unit first joint plate
2622: Second upper bridge unit second joint plate
2623: Second upper bridge unit third joint plate
2624: First upper beam member, second joint plate
b: bolt
n: nut
w: washer

Claims (13)

First lower column members and second lower column members arranged spaced apart from each other;
A first lower beam member arranged between the first lower column member and the second lower column member, but spaced apart from the first lower column member and the second lower column member;
A second lower bridge unit is disposed between the second lower column member and the first lower beam member, is connected to the second lower beam member by a second lower joint plate, is directly connected to the second lower column member, and is disposed below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
The above second lower column member is,
A second lower column section steel member including a second lower column left flange and a second lower column right flange arranged to face each other, and a second lower column web having one side connected to the second lower column left flange and the other side connected to the second lower column right flange,
The above first lower member,
A first lower beam section including a first lower beam upper flange and a first lower beam lower flange arranged to face each other, and a first lower beam web having one side connected to the first lower beam upper flange and the other side connected to the first lower beam lower flange,
The above second lower bridge unit,
A second lower bridge section including a second lower bridge unit upper flange and a second lower bridge unit lower flange arranged to face each other, and a second lower bridge unit web having one side connected to the second lower bridge unit upper flange and the other side connected to the second lower bridge unit lower flange,
One side of the upper flange of the second lower bridge unit is joined to the left flange of the second lower column and the right flange of the second lower column, respectively, and one side of the lower flange of the second lower bridge unit is spaced downward from the portion where one side of the upper flange of the second lower bridge unit is joined to the left flange of the second lower column and the right flange of the second lower column, respectively, and is joined to the left flange of the second lower column and the right flange of the second lower column, respectively.
The skeletal formation method of steel frame modular units. First lower column members and second lower column members arranged spaced apart from each other;
A first lower beam member arranged between the first lower column member and the second lower column member, but spaced apart from the first lower column member and the second lower column member;
A first lower bridge unit disposed between the first lower column member and the first lower beam member, connected to the first lower beam member by a first lower joint plate, directly connected to the first lower column member, and disposed below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the separation spaces between the first lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member;
A second lower bridge unit is disposed between the second lower column member and the first lower beam member, is connected to the second lower beam member by a second lower joint plate, is directly connected to the second lower column member, and is disposed below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
The above first lower member,
The window of the housing modular unit is installed in the outer direction, and the first lower bridge unit and the second lower bridge unit are formed to a length greater than the width in the left and right directions of the window so as not to interfere with the window.
The skeletal formation method of steel frame modular units. First lower column members and second lower column members arranged spaced apart from each other;
A first lower beam member arranged between the first lower column member and the second lower column member, but spaced apart from the first lower column member and the second lower column member;
A second lower bridge unit is disposed between the second lower column member and the first lower beam member, is connected to the second lower beam member by a second lower joint plate, is directly connected to the second lower column member, and is disposed below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
The above first lower member,
Including a first lower floor beam member in the left and right direction, which is included in the bottom of the lower modular unit and is arranged in the left and right direction,
The above second lower bridge unit,
A second lower floor bridge unit disposed in the left-right direction and included in the bottom of the lower modular unit; and
Further comprising a second lower floor bridge unit disposed in the front-back direction and included in the bottom of the lower modular unit,
The above second lower column member is,
It comprises a second lower pillar member lower unit that is erected vertically and is connected to the second lower floor bridge unit in the left and right directions and the second lower floor bridge unit in the front and rear directions, respectively.
The second lower pillar member lower unit, the left-right second lower floor bridge unit, and the front-back second lower floor bridge unit form a first assembly unit formed integrally.
The skeletal formation method of steel frame modular units. In claim 2,
A first upper column member arranged on the first lower column member and a second upper column member arranged on the second lower column member;
A first upper beam member arranged between the first upper column member and the second upper column member, but spaced apart from the first upper column member and the second upper column member;
A first upper bridge unit disposed between the first upper column member and the first upper beam member, coupled to the first upper beam member by a first upper joint plate, directly coupled to the first upper column member, and disposed above the first upper beam member so that a first upper separation portion, which is a portion where the first upper beam member is virtually horizontally extended to the first upper column member among the separation spaces between the first upper column member and the first upper beam member, is formed as an empty space, thereby forming a step structure with the first upper beam member; and
A second upper bridge unit is further included, which is disposed between the second upper column member and the first upper beam member, is connected to the first upper beam member by a second upper joint plate, is directly connected to the second upper column member, and connects the second upper column member and the first upper beam member, and is disposed above the first upper beam member so that a second upper separation portion, which is a portion where the first upper beam member is virtually horizontally extended to the second upper column member among the separation spaces between the second upper column member and the first upper beam member, is formed as an empty space, thereby forming a step structure with the first upper beam member.
The skeletal formation method of steel frame modular units. In claim 4,
The first lower beam member is positioned at the center of the space where the first lower column member and the second lower column member are spaced apart so that the lengths of the first lower separation portion and the second lower separation portion are the same,
The first upper beam member is positioned at the center of the space where the first upper column member and the second upper column member are spaced apart so that the lengths of the first upper separation portion and the second upper separation portion are the same.
The lengths of the first lower beam member and the first upper beam member are the same.
The skeletal formation method of steel frame modular units. In claim 2,
The above first lower column member is,
A first lower column section steel member including a first lower column left flange and a first lower column right flange arranged to face each other, and a first lower column web having one side connected to the first lower column left flange and the other side connected to the first lower column right flange,
The above second lower column member is,
A second lower column section steel member including a second lower column left flange and a second lower column right flange arranged to face each other, and a second lower column web having one side connected to the second lower column left flange and the other side connected to the second lower column right flange,
The above first lower column member and the above second lower column member,
The first lower column web and the second lower column web are arranged to face each other,
The skeletal formation method of steel frame modular units. In claim 6,
The above first lower member,
A first lower beam section including a first lower beam upper flange and a first lower beam lower flange arranged to face each other, and a first lower beam web having one side connected to the first lower beam upper flange and the other side connected to the first lower beam lower flange,
The above first lower bridge unit,
A first lower bridge section including a first lower bridge unit upper flange and a first lower bridge unit lower flange arranged to face each other, and a first lower bridge unit web having one side connected to the first lower bridge unit upper flange and the other side connected to the first lower bridge unit lower flange,
The above second lower bridge unit,
A second lower bridge section including a second lower bridge unit upper flange and a second lower bridge unit lower flange arranged to face each other, and a second lower bridge unit web having one side connected to the second lower bridge unit upper flange and the other side connected to the second lower bridge unit lower flange,
One side of the upper flange of the first lower bridge unit is joined to the left flange of the first lower column and the right flange of the first lower column, respectively, and one side of the lower flange of the first lower bridge unit is joined to the left flange of the first lower column and the right flange of the first lower column, respectively, and is spaced downward from the portion where one side of the upper flange of the first lower bridge unit is joined to the left flange of the first lower column and the right flange of the first lower column, respectively.
One side of the upper flange of the second lower bridge unit is joined to the left flange of the second lower column and the right flange of the second lower column, respectively, and one side of the lower flange of the second lower bridge unit is spaced downward from the portion where one side of the upper flange of the second lower bridge unit is joined to the left flange of the second lower column and the right flange of the second lower column, respectively, and is joined to the left flange of the second lower column and the right flange of the second lower column, respectively.
The skeletal formation method of steel frame modular units. In claim 7,
A first lower column first stiffener arranged between the left flange of the first lower column and the right flange of the first lower column, one side of which is joined to the first lower column web, and the other side of which is joined to one side of the first lower bridge unit web, and arranged in an erecting structure;
A first lower column second stiffener arranged between the left flange of the first lower column and the right flange of the first lower column, one side of which is joined to the first lower column web, the other side of which is joined to one side of the upper flange of the first lower bridge unit, and arranged parallel to the ground; and
A first lower column third stiffener is further included, which is arranged between the left flange of the first lower column and the right flange of the first lower column, one side of which is joined to the first lower column web, the other side of which is joined to one side of the lower flange of the first lower bridge unit, and is arranged parallel to the second stiffener of the first upper column.
The skeletal formation method of steel frame modular units. In claim 3,
It further includes a first lower bridge unit that is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the separation spaces between the first lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
The above first lower member,
The window of the housing modular unit is installed in the outer direction, and the first lower bridge unit and the second lower bridge unit are formed to a length greater than the width in the left and right directions of the window so as not to interfere with the window.
The skeletal formation method of steel frame modular units. In claim 1,
It further includes a first lower bridge unit that is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the separation spaces between the first lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member.
The above first lower joint plate,
A first lower bridge unit first joining plate is disposed opposite to one side where the first lower bridge unit is coupled to the first lower column member, so as to face the first lower column web, and is coupled so as to be in close contact with the upper flange of the first lower bridge unit, the lower flange of the first lower bridge unit, and the web of the first lower bridge unit, respectively;
A first lower bridge unit second joint plate that is coupled to be erected on the first lower bridge unit first joint plate;
A first lower bridge unit third joining plate is positioned in close contact with the upper flange of the first lower bridge unit so as to be parallel to the upper flange of the first lower bridge unit, and one end thereof is joined to the second joining plate of the first lower bridge unit; and
A first lower beam member first joining plate disposed between the first lower beam member and the first lower bridge unit second joining plate, and joined to the first lower beam upper flange, the first lower beam lower flange, the first lower beam web, and the first lower bridge unit second joining plate,
The skeletal formation method of steel frame modular units. In claim 10,
The above first lower bridge unit second joining plate is,
In order to facilitate bolt connection with the first lower bridge member first joining plate, a plurality of first lower bridge unit second joining plate fastening holes are formed spaced apart in the left and right directions,
The first lower member first joint plate is,
In order to facilitate bolt connection with the first lower bridge unit second joining plate, a first lower beam member first joining plate fastening hole is formed at a position corresponding to the first lower bridge unit second joining plate fastening hole in the left and right direction.
The third joint plate of the first lower bridge unit is
In order to facilitate bolt connection with the upper flange of the first lower bridge unit, a plurality of first lower bridge unit third joint plate fastening holes are formed in a vertically spaced manner at positions facing each side of the upper flange of the first lower bridge unit based on the web of the first lower bridge unit.
The skeletal formation method of steel frame modular units. Modular unit manufacturing stage where lower modular units and upper modular units are manufactured in the factory;
A modular unit transport step for transporting the lower modular unit and the upper modular unit to a construction site;
Lower modular unit installation step of placing lower modular units at the construction site; and
Includes an upper modular unit combining step of placing and combining an upper modular unit on a lower modular unit,
The above lower modular unit manufacturing steps are:
A step of manufacturing a first lower column member and a second lower column member that are spaced apart from each other;
A step of manufacturing a first lower beam member that is arranged between the first lower column member and the second lower column member, but is arranged spaced apart from the first lower column member and the second lower column member;
A step of manufacturing a first lower bridge unit that is arranged between the first lower column member and the first lower beam member, is connected to the first lower beam member by a first lower joint plate, is directly connected to the first lower column member, and is arranged below or above the first lower beam member so that a first lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the first lower column member among the separation spaces between the first lower column member and the first lower beam member, is formed as an empty space to form a step structure with the first lower beam member; and
A step of manufacturing a second lower bridge unit that is disposed between the second lower column member and the first lower beam member, is connected to the second lower beam member by a second lower joint plate, is directly connected to the second lower column member, and is disposed below or above the first lower beam member so that a second lower separation portion, which is a portion where the first lower beam member is virtually horizontally extended to the second lower column member among the separation spaces between the second lower column member and the first lower beam member, is formed as an empty space, thereby forming a step structure with the first lower beam member,
The above first lower member,
The window of the housing modular unit is installed in the outer direction, and the first lower bridge unit and the second lower bridge unit are formed to a length greater than the width in the left and right directions of the window so as not to interfere with the window.
Construction method of steel frame modular units. In claim 12,
The above lower modular unit manufacturing steps are:
A lower column member installation step including a step of installing the first lower column member and a step of installing the second lower column member;
A lower bridge unit joining step including a step of joining the first lower bridge unit to the first lower pillar member and a step of joining the second lower bridge unit to the second lower pillar member; and
A step of arranging and joining the first lower bridge member between the first lower bridge unit and the second lower bridge unit,
Construction method of steel frame modular units.