KR102817831B1 - Structure for connecting modular unit to foundation - Google Patents

Abstract

The present invention relates to a modular unit foundation connection structure in which a plurality of fixing members fixedly installed on the upper part of a foundation member are detachably connected to the outer surface of a lower beam member of a modular unit, thereby facilitating the connection work between the modular unit and the foundation member and freely separating them, and preventing damage to the modular unit during transfer or reinstallation.
The present invention is to fix a modular unit, which is composed of a plurality of column members, an upper beam member connecting the upper ends of neighboring column members, and a lower beam member connecting the lower ends of neighboring column members and having a connecting hole, which is a concrete-filled square tube, protrudingly formed at the lower end, to the upper end of a foundation member, wherein a plurality of fixing holes are fixedly installed on the upper end of the foundation member, the fixing holes are detachably connected to the outer surface of the connecting hole of the lower beam member of the modular unit, and the fixing holes are characterized by comprising: an anchor member embedded and fixed in the upper end of the foundation member, a beam mount comprising a mounting plate fixed to the upper end of the anchor member and having the connecting hole of the lower beam member mounted on the upper surface thereof, and a beam fixing plate in close contact with the outer surface of the connecting hole of the lower beam member, and a fastening member that horizontally penetrates the beam fixing plate of the beam mount and is fastened to the lower beam member.

Description

{Structure for connecting modular unit to foundation}

The present invention relates to a modular unit foundation connection structure in which a plurality of fixing members fixedly installed on the upper part of a foundation member are detachably connected to the outer surface of a lower beam member of a modular unit, thereby facilitating the connection work between the modular unit and the foundation member and freely separating them, and preventing damage to the modular unit during transfer or reinstallation.

Recently, with the trend of improving living standards and income, improving transportation conditions, and pursuing work-life balance, the demand for various types of small houses such as small villas, shared houses, second houses, and workation houses is increasing.

However, the existing construction industry is a typical labor-intensive industry with limitations in productivity, difficulties in securing manpower, and limitations in improving quality. Therefore, there is an urgent need for off-site construction, mechanized construction with no quality gaps between products, and development of labor-saving technologies.

Accordingly, modular construction is increasing in construction, which can shorten construction time, secure uniform quality, reduce dependence on manpower, and minimize environmental hazards such as noise and dust.

The modular system is an industrial construction method in which modular units, prefabricated in box form at the factory, are stacked and assembled vertically and horizontally on site, unlike conventional buildings where the skeleton is constructed on site.

Since the modular system's construction process, including not only the skeleton but also various interior materials, mechanical equipment, and electrical wiring, is mostly carried out in the factory, it is possible to secure excellent quality and greatly shorten the construction period.

These modular systems allow for the assembly or separation of modular units. And when the lease term for the land or modular system ends or the residential area changes, the lightweight modular units can be dismantled and relocated.

Meanwhile, in order to install factory-made modular units on site, the foundation must be constructed on site and then the modular units must be installed and secured on top of the foundation.

In the past, when constructing a foundation to connect a modular unit to a foundation, anchor members such as anchor bolts or guide pins were installed protruding from the top of the foundation, the anchor members were inserted into the lower part of the column members of the modular unit, and then non-shrinkage mortar was poured into the inside of the column members or the anchor members were welded to the modular unit to secure the anchor members (Patent No. 10-1266737, etc.).

However, in this case, the connection work between the modular unit and the foundation is cumbersome and time-consuming. In addition, if the floor plate is pre-installed inside the modular unit, the anchoring work is very difficult. In addition, since the anchor member is strongly welded inside the modular unit, it is difficult to separate the anchor member and the modular unit when the modular unit is dismantled, and damage to the joint is inevitable, which limits the reuse of the modular unit.

In order to solve the above problems, the present invention aims to provide a basic connection structure of a modular unit that facilitates the connection work between the modular unit and the basic member.

The present invention seeks to provide a basic connection structure for a modular unit that allows the modular unit to be freely separated from a base member, thereby preventing damage to the modular unit when the modular unit is transferred or reinstalled.

According to a preferred embodiment, the present invention provides a modular unit comprising a plurality of column members, an upper beam member connecting the upper ends of neighboring column members, and a lower beam member connecting the lower ends of neighboring column members and having a connecting hole formed by protruding a concrete-filled square pipe at the lower end, for fixing a modular unit to the upper end of a foundation member, wherein a plurality of fixing holes are fixedly installed on the upper end of the foundation member, the fixing holes are detachably coupled to the outer surface of the connecting hole of the lower beam member of the modular unit, and the fixing holes are embedded in and fixed to the upper end of the foundation member, a beam mount comprising a mounting plate fixed to the upper end of the anchor member and having the connecting hole of the lower beam member mounted on the upper surface thereof and a beam fixing plate in close contact with the outer surface of the connecting hole of the lower beam member, and a fastening member horizontally penetrating the beam fixing plate of the beam mount and fastened to the lower beam member.

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According to another preferred embodiment, the present invention provides a basic connection structure of a modular unit, characterized in that the beam fixing plate is slidably connected to a mounting plate so as to be in close contact with or spaced apart from a lower beam member.

According to another preferred embodiment, the present invention provides a basic connection structure of a modular unit, characterized in that a guide plate having a long hole formed therein, through which an anchor member passes, is inserted into the lower part of a support plate and is integrally provided at the lower end of the beam fixing plate.

According to another preferred embodiment, the present invention provides a basic connection structure of a modular unit, characterized in that a load transfer brace is provided between an upper beam member and a column member of the modular unit.

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According to the present invention, a foundation connection structure of a modular unit can be provided in which a plurality of fixing members fixedly installed on the upper part of a foundation member are removably connected to the outer surface of a lower beam member of the modular unit.

Accordingly, the modular unit can be easily connected to the foundation member from the outside using the fixture, and when the modular unit is dismantled, the modular unit can be separated without damage by dismantling the fixture from the outside.

Additionally, modular units can be easily joined to the foundation material even when the floor plate is installed inside the modular unit.

Figure 1 is a perspective view showing the basic connection structure of the modular unit of the present invention.
Figure 2 is a perspective view showing the process of connecting a base member and a modular unit by a fixture.
Figure 3 is a perspective view showing the basic connection structure of a modular unit equipped with a floor plate.
Figure 4 is a perspective view showing a fixture.
Figure 5 is a perspective view showing the state of connection between the fixture and the lower beam member.
Figure 6 is a perspective view showing an embodiment in which a fixture is coupled to a small diameter file.
Figure 7 is a bottom perspective view showing a fixture in which a beam fixing plate is slidably connected to a mounting plate.
Figure 8 is a bottom perspective view showing a fixture having an entry hole in a guide plate.
Figure 9 is a perspective view showing the basic connection structure of a modular unit equipped with a load transfer brace.
Figure 10 is a perspective view showing a state in which a fixture is connected to a connecting member at the bottom of a lower beam member.

Hereinafter, the present invention will be described in detail with reference to the attached drawings and preferred embodiments.

FIG. 1 is a perspective view illustrating a basic connection structure of a modular unit of the present invention, FIG. 2 is a perspective view illustrating a process of connecting a basic member and a modular unit by a fixing member, and FIG. 3 is a perspective view illustrating a basic connection structure of a modular unit equipped with a floor plate.

As illustrated in FIGS. 1 to 3, the basic connection structure of the modular unit of the present invention comprises a plurality of column members (21), an upper beam member (22) connecting the upper ends of neighboring column members (21), and a lower beam member (23) having a connecting hole (230) protruding from the lower end, which is a concrete-filled square tube, for fixing the modular unit (2) to the upper end of the foundation member (1), wherein a plurality of fixing holes (3) are fixedly installed on the upper end of the foundation member (1), and the fixing holes (3) are detachably coupled to the outer surface of the connecting hole (230) of the lower beam member (23) of the modular unit (2).

The present invention provides a basic connection structure of a modular unit in which the connection work between the modular unit (2) and the base member (1) is easy and the modular unit (2) can be freely separated from the base member (1), so that the modular unit (2) is not damaged during the transfer or reinstallation process.

A foundation member (1) is first constructed on the ground where the above modular unit (2) is to be installed.

The above foundation member (1) may be a concrete foundation slab.

The above modular unit (2) is composed of four column members (21), an upper beam member (22) connecting the upper portions of neighboring column members (21), and a lower beam member (23) connecting the lower portions of neighboring column members (21), and each modular unit (2) is formed in a rectangular solid shape.

At the ends of the upper beam member (22) and the lower beam member (23), a connecting hole (20) may be provided to connect adjacent beam members (22, 23) and beam members (22, 23) or beam members (22, 23) and column members (21).

The upper beam member (22) above is composed of upper and lower flanges spaced apart from each other and a web connecting the outer ends of the upper and lower flanges, and can be formed into a T-shaped cross section with an open inner side.

Likewise, the lower beam member (23) is composed of an upper flange (231) and a lower flange (232) spaced apart from each other vertically and a web (233) connecting the outer ends of the upper flange (231) and the lower flange (232), and can be formed into a T-shaped cross section with an open inner side.

A plurality of fixing members (3) are fixedly installed on the upper part of the sink base member (1) (Fig. 2, etc.).

The lower part of the above fixture (3) is embedded and fixed within the base member (1), and the upper part can be connected to the lower beam member (23) of the modular unit (2).

The above fixing member (3) is detachably attached to the outer surface of the lower beam member (23) of the modular unit (2). Therefore, the modular unit (2) can be easily attached to the base member (1) from the outside using the fixing member (3), and the modular unit (2) can be easily attached to the base member (1) even when a finishing material including a floor plate (24) is installed inside the modular unit (2).

The above-mentioned fixing member (3) is installed at multiple points on the outside of the lower beam member (23) to connect the modular unit (2) to the foundation member (1) at multiple locations.

Accordingly, the vertical load transmitted by the column member (21) is transferred to the adjacent lower beam member (23) and transmitted to the foundation member (1) through the fixing member (3).

The modular system to which the present invention is applied is mainly applicable to small-scale buildings of medium and low rises. In this case, since the size of the vertical load is not large, even if the fixing member (3) is not directly connected to the lower part of the column member (21) and the vertical load is transferred to the lower beam member (23), there is no problem in supporting the load.

In order to minimize the increase in bending and shear force in the lower beam member (23) when the load of the column member (21), which is a vertical member, is transferred to the lower beam member (23), which is a horizontal member, it is preferable that the fixing member (3) be installed at a position adjacent to the column member (21), i.e., at the end side of the lower beam member (23).

Accordingly, when one modular unit (2) is installed alone, a pair of fixtures (3) can secure the corner portions of the modular unit (2) on both sides to resist lateral loads in both directions.

Since the above-mentioned fastener (3) is detachably connected to the outer surface of the lower beam member (23), when the modular unit (2) is dismantled, the fastener (3) and the lower beam member (23) can be easily separated by releasing the connection from the outside of the modular unit (2).

A floor plate (24) may be provided inside the space surrounded by the above lower beam member (23) (Fig. 3).

Fig. 4 is a perspective view illustrating a fixture, Fig. 5 is a perspective view illustrating a state in which a fixture is coupled with a lower beam member, and Fig. 6 is a perspective view illustrating an example in which a fixture is coupled to a small-diameter pile.

As shown in FIGS. 4 and 5, the fixture (3) may be composed of an anchor member (31) that is embedded and fixed in the upper portion of the base member (1), a beam mount (32) that is composed of a mounting plate (321) that is fixed to the upper portion of the anchor member (31) and on which a coupling hole (230) of the lower beam member (23) is mounted on the upper surface, and a beam fixing plate (322) that is in close contact with the outer surface of the coupling hole (230) of the lower beam member (23), and a fastening member (33) that penetrates the beam fixing plate (322) of the beam mount (32) in the horizontal direction and is fastened to the lower beam member (23).

The above-mentioned fixture (3) may be composed of an anchor member (31) for fixing to the base member (1) and a beam mount (32) for connecting to the lower beam member (23).

The upper part of the above anchor member (31) can be formed to protrude from the upper part of the foundation member (1) while the lower part is inserted and fixed into the interior of the foundation member (1).

The above anchor member (31) may be an anchor bolt, etc.

The above beam mount (32) is composed of a mounting plate (321) and a beam fixing plate (322).

The above-mentioned mounting plate (321) is fixed to the upper end of the anchor member (31), and the lower beam member (23) is mounted on the upper surface.

The above beam fixing plate (322) is provided vertically on the upper side of the mounting plate (321) and is in close contact with the outer surface of the lower beam member (23).

The above beam mount (32) can be formed with an L-shaped cross section in which the ends of the mounting plate (321) and the beam fixing plate (322) are integrally fixed to each other.

The above fastening member (33) penetrates the beam fixing plate (322) horizontally and is fastened to the lower beam member (23). As a result, the lower beam member (23) is fixed to the beam mount (32).

That is, the above fastening member (33) is fastened laterally from the outside of the modular unit (2) to securely connect the modular unit (2) to the base member (1).

The above fastening member (33) may be a bolt.

To this end, fastening holes (H) can be formed at corresponding positions in the beam fixing plate (322) and the lower beam member (23).

The above fastening hole (H) can be formed as a long hole with a long length from left to right, taking into account construction errors, etc.

In the above modular unit (2), the compressive force acting on the foundation member (1) is supported by the bearing force of the lower beam member (23) and the support plate (321), and the pulling force is supported by the shear force of the fastening member (33).

A fixing nut (34) to which a fixing member (33) is screw-connected may be provided inside the fixing hole (H) of the lower beam member (23) (Fig. 5).

When the floor plate (24) is pre-installed on the lower part of the modular unit (1) as shown in Fig. 3, the fixing nut (34) can be embedded in the interior of the floor plate (24). And the fastening member (33) can be fastened in one way from the outside.

In the case where the lower beam member (23) has a U-shaped cross section composed of upper and lower flanges (231, 232) and a web (233), the fastening member (33) is fastened so as to penetrate the beam fixing plate (322) and the web (233) of the lower beam member (23). At this time, the fastening hole (H) is formed in the beam fixing plate (322) and the web (233) of the lower beam member (23). In addition, the lower surface of the lower flange (232) of the lower beam member (23) is supported by being placed on the mounting plate (321) of the beam mount (32).

Since the above fastening member (33) can be fastened or removed from the outside of the modular unit (1), the modular unit (2) can be easily fastened or separated from the base member (1).

In addition, the height of the foundation material (1) being constructed on site may not be constant. Accordingly, the height of the beam mount (32) of the fixture (3) installed at multiple points may also not be constant.

Therefore, in order to adjust the height of multiple beam mounts (32), the beam mounts (32) are installed at a certain distance from the upper surface of the foundation member (1), and the gap between the lower portion of the beam mounts (32) and the foundation member (1) can be filled with a filler (F) such as non-shrinkage mortar or epoxy.

Meanwhile, if the size of the vertical load by the modular unit (2) is not large, rapid construction is possible by self-drilling and the modular system can be sufficiently supported by using a small-diameter pile (11) with low noise.

Accordingly, so that the load of the modular unit (2) can be directly supported by the small-diameter pile (11) without a separate foundation plate, the foundation member (1) can be composed of a small-diameter pile (11) embedded in the ground so that the upper end protrudes above the ground, and an anchorage box (12) coupled to the upper head of the small-diameter pile (11) (Fig. 6).

The above fixing box (12) may be composed of a base plate (121) through which the upper part of the small-diameter pile (11) passes and a cap part (122) formed in a box shape with an open lower part and placed on the upper part of the base plate (121). The interior of the fixing box (12) may be filled with a filler (F) such as non-shrink mortar.

A through hole may be formed on the upper surface of the cap portion (122). The anchor member (31) of the fixing member (3) may be inserted and fixed into the fixing box (12) through the through hole formed on the upper surface of the cap portion (122). The anchor member (31) may be fixed into the fixing box (12) by means of a filler (F).

Accordingly, the foundation plate construction can be omitted, shortening the construction period and reducing construction costs.

Figure 7 is a bottom perspective view showing a fixture in which a beam fixing plate is slidably connected to a mounting plate.

As shown in Fig. 7, the beam fixing plate (322) can be slidably connected to the mounting plate (321) so that it can be in close contact with or separated from the lower beam member (23).

The above fixtures (3) are installed in multiple numbers on each of the four sides of the modular unit (2).

At this time, the beam mount (32) of the above fixture (3) is formed in an L shape so that the support plate (321) must support the lower part of the lower beam member (23), so the fixture (3) must be installed first and then the modular unit (2) must be installed later.

However, since the above-mentioned fixing fixtures (3) are installed in multiple numbers on each of the four sides of the modular unit (2), and the beam fixing plate (322) of the beam mount (32) must be in close contact with the outer surface of the lower beam member (23), the spacing between the fixing fixtures (3) provided at facing positions must be formed to be the same as the width of the modular unit (2). In this case, it is difficult to fit the modular unit (2) between the facing fixing fixtures (3).

Therefore, in order to enable easy installation between the fixing members (3) on both sides facing the modular unit (2) with the fixing member (3) first installed, the beam fixing plate (322) can be configured separately from the mounting plate (321) and configured to be able to slide relative to the mounting plate (321).

That is, the above-mentioned mounting plate (321) is provided to be fixed to the lower anchor member (31), but the beam fixing plate (322) can be configured to be able to slide in a direction orthogonal to the lower beam member (23).

Accordingly, before installing the modular unit (2), the beam fixing plate (322) can be slid outward to secure sufficient insertion space for the modular unit (2).

After installing the above modular unit (2), the beam fixing plate (322) can be slid toward the lower beam member (23) to attach the beam fixing plate (322) to the lower beam member (23).

Figure 8 is a bottom perspective view showing a fixture having an entry hole in a guide plate.

As shown in FIG. 7 and FIG. 8, a guide plate (323) having a long hole (324) formed therein, through which an anchor member (31) passes, and which is inserted into the lower part of the mounting plate (321) may be integrally provided at the lower end of the beam fixing plate (322).

In order to slidably connect the beam fixing plate (322) to the mounting plate (321), a guide plate (323) that protrudes in a horizontal direction inward may be integrally provided at the bottom of the beam fixing plate (322).

The above guide plate (323) may be provided in close contact with the lower portion of the mounting plate (321) and may be slidably moved inward or outward from the mounting plate (321).

To this end, a hole (324) is formed in the guide plate (323) so that the anchor member (31) can penetrate through it and the guide plate (323) can move without interference from the anchor member (31).

The above-mentioned long hole (324) is formed to have a long length in a direction perpendicular to the lower beam member (23), and can be configured to move the beam fixing plate (322) outward or inward by the length of the long hole (324).

Therefore, after installing the above modular unit (2), the beam fixing plate (322) is pushed inward and pressed against the lower beam member (23), and then the beam fixing plate (322) and the lower beam member (23) can be joined using the fastening member (33).

The above fastening member (33) resists the pulling force between the modular unit (2) and the base member (1). Since the guide plate (323) formed integrally at the lower portion of the beam fixing plate (322) is hung on and supported by the lower portion of the mounting plate (321), there is no problem in supporting the pulling force even if the beam fixing plate (322) is configured separately from the mounting plate (321).

For the lateral force acting in the longitudinal direction of the lower beam member (23), the guide plate (323) can be hung on the anchor member (31) and supported by the shear force of the anchor member (31).

Since the above-mentioned fixture (3) is installed on all four sides of the modular unit (2), it can resist both longitudinal and transverse forces in the plane.

In order to enable the beam fixing plate (322) to be assembled and installed later while the anchor member (31) and the mounting plate (321) are pre-installed, an entry hole (325) cut out on the side outside of the guide plate (323) may be formed on one side of the long hole (324) of the guide plate (323) (Fig. 8).

Figure 9 is a perspective view showing the basic connection structure of a modular unit equipped with a load transfer brace.

As shown in Fig. 9, a load transfer brace (25) may be provided between the upper beam member (22) and the column member (21) of the modular unit (2).

In a modular system in which a plurality of modular units (2, 2') are stacked, if the sizes of the upper and lower modular units (2, 2') are different or the stacking positions of the upper and lower modular units (2, 2') are misaligned, the column member (21') of the upper modular unit (2') may be positioned at any point above the upper beam member (22) rather than above the column member (21) of the lower modular unit (2).

In this case, the vertical load of the upper modular unit (2') is transferred from the column member (21') of the upper modular unit (2') to the column member (21) of the lower modular unit (2) through the upper beam member (22) of the lower modular unit (2). Therefore, an excessive bending moment occurs in the upper beam member (22) of the lower modular unit (2), and accordingly, there is a disadvantage in that the cross-section of the upper beam member (22) must be designed to be larger than necessary.

Accordingly, in cases where the column members (21, 21') of the upper and lower modular units (2, 2') do not coincide with each other, an inclined load transfer brace (25) may be provided between the upper beam member (22) and the column member (21) so that the load of the column member (21') of the upper modular unit (2') can be directly transferred to the column member (21) of the lower modular unit (2) without the load burden of the upper beam member (22) of the lower modular unit (2).

The upper part of the above load transfer brace (25) can be installed so as to be located at the lower part of the column member (21') of the upper modular unit (2').

Figure 10 is a perspective view showing a state in which a fixture is connected to a connecting member at the bottom of a lower beam member.

As shown in Fig. 10, a joint (230) which is a concrete-filled square pipe is protrudingly formed at the lower part of the lower beam member (23) at the position where the fixing member (3) is to be coupled, and the fixing member (3) can be detachably coupled to the outer surface of the joint member (230).

An exterior material such as a glass wool panel or a metal panel is installed on the outer surface of the lower beam member (23). However, if the fixing member (3) is directly connected to the outer surface of the web (233) of the lower beam member (23), there is the inconvenience of having to cut the exterior material due to interference with the fixing member (3).

Accordingly, a separate joint (230) can be formed protrudingly at the lower portion of the lower beam member (23), and a fixing member (3) can be attached to the joint (230).

The above-mentioned joint (230) may be a square pipe or a concrete-filled square pipe.

The above-mentioned joint (230) can be integrally fixedly connected to the lower part of the lower flange (232) of the lower beam member (23) by welding or bolting.

At this time, the lower beam member (23) can be constructed so that its lower surface is positioned at the same level as the ground, and the connecting member (230) and the fixing member (3) can be embedded in the ground.

1: Base material
11: Small diameter file
12: Settlement Box
121: Baseplate
122: Capbu
2: Modular Unit
2': Upper modular unit
20: Connector
21: Absence of column
22: Upper beam member
23: Lower beam member
230: Combination
231: Upper flange
232: Lower flange
233: Web
24: Floor plate
25: Load transfer brace
3: Fixture
31: Anchor Absence
32: Beam mount
321: Stand
322: Beam fixing plate
323: Guide board
324: Jang Gong
325: Entry hole
33: Absence of fasteners
34: Fixed nut
F: Filler
H: Fastening hole

Claims (6)

A modular unit (2) is configured to be fixed to the upper part of a foundation member (1) by a plurality of column members (21), an upper beam member (22) connecting the upper ends of neighboring column members (21), and a lower beam member (23) having a connecting hole (230) formed protruding at the lower end as a concrete-filled square pipe to connect the lower ends of neighboring column members (21).
A plurality of fixing members (3) are fixedly installed on the upper part of the above-mentioned base member (1), and the fixing members (3) are detachably connected to the outer surface of the connecting member (230) of the lower beam member (23) of the modular unit (2).
The above fixing member (3) is characterized by a modular unit foundation connection structure comprising an anchor member (31) embedded and fixed in the upper part of a foundation member (1), a beam mount (32) comprising a mounting plate (321) fixed to the upper part of the anchor member (31) and having a connecting hole (230) of a lower beam member (23) mounted on the upper surface, and a beam fixing plate (322) that is in close contact with the outer surface of the connecting hole (230) of the lower beam member (23), and a fastening member (33) that penetrates the beam fixing plate (322) of the beam mount (32) in the horizontal direction and is fastened to the lower beam member (23).
delete In paragraph 1,
The basic connection structure of a modular unit is characterized in that the beam fixing plate (322) is slidably connected to the mounting plate (321) so that it can be in close contact with or separated from the lower beam member (23).
In paragraph 3,
A modular unit basic connection structure characterized in that a guide plate (323) is integrally formed at the bottom of the beam fixing plate (322) and has a long hole (324) formed therein through which an anchor member (31) passes to be inserted into the lower part of the support plate (321).
In paragraph 1,
A basic connection structure of a modular unit, characterized in that a load transfer brace (25) is provided between the upper beam member (22) and the column member (21) of the above modular unit (2).
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