KR20240030382A - Connector for modular unit with junction plate - Google Patents

Abstract

In the present invention, in order to join vertical members and horizontal members in a modular unit, horizontal member connectors and joint plates are provided on the sides and upper or lower sides of the concrete body block, respectively, thereby ensuring sufficient structural performance and excellent assembling with other members. It is about a connector for a modular unit equipped with a joint plate that does not require separate fire resistance treatment and allows economical construction.
The connector for a modular unit equipped with a joining plate of the present invention is a modular unit consisting of a vertical member provided at the four corners to be spaced apart from each other and a horizontal member connecting the top and bottom of the adjacent vertical member, respectively. For joining, a main body block formed of concrete; Horizontal member connecting portions extending from the main body block and integrally protruding from at least two sides of the main body block to connect the horizontal members; A joining plate provided on the upper or lower part of the main body block to join the vertical members; and a plurality of vertical fixing bars provided in a vertical direction and embedded within the main body block. It is characterized by being composed of.

Description

Connector for modular unit with junction plate {Connector for modular unit with junction plate}

In the present invention, in order to join vertical members and horizontal members in a modular unit, horizontal member connectors and joint plates are provided on the side and upper or lower sides of the concrete body block, respectively, thereby ensuring sufficient structural performance and excellent assembling with other members. It is about a connector for a modular unit equipped with a joint plate that does not require separate fire resistance treatment and allows economical construction.

Unlike the RC method, which constructs each member on-site, or the PC method, which assembles individual members pre-fabricated in a factory on-site, modular construction involves stacking modular units, all of which are pre-fabricated in a box-like shape, on site, up, down, left, and right. It is a completed structural system.

In this modular system, most of the installation process, including not only the structural frame but also various interior and exterior materials, mechanical equipment, and electrical wiring, is carried out at the factory. Therefore, it is possible to secure excellent and homogeneous quality, and the construction period can be greatly shortened by minimizing field processes.

The modular unit that makes up the modular system is usually provided with vertical members at each corner, and the top and bottom of the vertical members are connected by horizontal members to form a rectangular parallelepiped.

In the conventional modular unit, each member was mainly joined by welding when manufactured in a factory (Patent Nos. 10-0923637, 10-1031299, etc.).

However, the joining method by welding has the risk of quality deterioration such as thermal deformation. In addition, the joint between the vertical member and the horizontal member has a short and complicated welding area, which limits automated production and reduces productivity. In addition, disassembly is cumbersome and recycling of materials is difficult because the members must be cut for maintenance and repair.

Registered Patent No. 10-1628092 uses steel corner blocks to join columns and beam members. However, the above technology also has low productivity because it welds column and beam members to corner blocks. In addition, since steel blocks are manufactured by casting, the manufacturing cost is high, a large amount of steel is required, which reduces economic efficiency, and there is the inconvenience of having to separately fireproof treatment.

In order to solve the above problems, the present invention is for joining vertical members and horizontal members in a modular unit. It secures sufficient structural performance, has excellent assembly with other members, does not require separate fire resistance treatment, and is economical. We would like to provide a connector for a modular unit equipped with a joint plate that can be installed.

The present invention according to a preferred embodiment is for joining the vertical members and the horizontal members in a modular unit consisting of a vertical member provided at the four corners to be spaced apart from each other and a horizontal member respectively connecting the upper and lower ends of the neighboring vertical members. Pertaining to a connector for a modular unit, comprising: a main body block formed of concrete; Horizontal member connecting portions extending from the main body block and integrally protruding from at least two sides of the main body block to connect the horizontal members; A joining plate provided on the upper or lower part of the main body block to join the vertical members; and a plurality of vertical fixing bars provided in a vertical direction and embedded within the main body block. Provides a connector for a modular unit equipped with a joining plate, characterized in that it consists of.

The present invention according to another preferred embodiment is a joint plate characterized in that a bar fastening hole is formed on the side where the joint plate is joined to the main body block, and one end of the vertical fixing bar is screwed to the bar fastening hole. Connectors for the equipped modular units are provided.

In the present invention according to another preferred embodiment, insert nuts to which coupling bolts are fastened for fixing the horizontal member to the horizontal member connection are embedded in the upper and lower surfaces of the horizontal member connection portion, and vertical members are joined to each side of the joint plate. Provided is a connector for a modular unit equipped with a joining plate, characterized in that a bolt fastening hole is formed into which a coupling bolt for fixing to the plate is fastened.

The present invention according to another preferred embodiment provides a connector for a modular unit equipped with a joining plate, characterized in that the interior of the main body block is provided with a horizontal fixing bar extending into the interior of the horizontal member connection portion.

According to the present invention, it is provided at each corner of the modular unit to join the ends of the vertical member and the horizontal member, and the horizontal member connection part is formed integrally with the side of the concrete body block for joining the horizontal member, and the upper part of the main body block is provided. Alternatively, a connector for a modular unit equipped with a joining plate at the bottom for joining vertical members may be provided.

In particular, since it is possible to manufacture the main body block and the horizontal member connection using a plastic mold, manufacturing is easier than existing steel blocks and manufacturing costs can be significantly reduced. In addition, there is no need for separate fire resistance treatment and no welding process is required when assembling vertical and horizontal members, so constructability is excellent.

In addition, a vertical fixing bar is provided in the vertical direction inside the main body block to directly transfer the stress caused by the load of the horizontal member to the vertical member, thereby ensuring sufficient structural performance.

1 is a perspective view showing a modular unit.
Figure 2 is a perspective view showing a connector for a modular unit.
Figure 3 is a perspective view showing the interior of a connector for a modular unit.
Figure 4 is a perspective view showing the coupling relationship between a connector and a vertical member and a horizontal member.
Figure 5 is a perspective view showing a coupled state of a vertical member and a horizontal member by a connector.
Figure 6 is a perspective view showing a joint plate.
Figure 7 is a diagram showing the concept of stress transfer by a strut tie model.

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

FIG. 1 is a perspective view showing a modular unit, FIG. 2 is a perspective view showing a connector for a modular unit, and FIG. 3 is a perspective view showing the inside of a connector for a modular unit. And Figure 4 is a perspective view showing the coupling relationship between the connector and the vertical member and the horizontal member, and Figure 5 is a perspective view showing the coupling state of the vertical member and the horizontal member by the connector.

As shown in Figures 1 to 5, the connector for a modular unit equipped with a joining plate of the present invention is provided between the vertical members 2 spaced apart from each other at the four corners and the upper and lower ends of the adjacent vertical members 2. A main body block (41) made of concrete for joining the vertical member (2) and the horizontal member (3) in a modular unit (1) composed of horizontal members (3) connecting each other; Horizontal member connecting portions 42 extending from the main body block 41 and integrally protruding from at least two sides of the main body block 41 to join the horizontal members 3; A joining plate 43 provided on the upper or lower part of the main body block 41 to join the vertical member 2; and a plurality of vertical fixing bars (44) provided in a vertical direction and embedded within the main body block (41); It is characterized by being composed of.

The present invention is for joining the vertical member (2) and the horizontal member (3) in the modular unit (1). It secures sufficient structural performance, has excellent assembly with other members, and does not require separate fire resistance treatment. The purpose is to provide a connector for a modular unit equipped with a joining plate that allows economical construction.

The present invention is for joining the vertical member (2) and the horizontal member (3) in the modular unit (1).

The modular unit (1) can be used in various types of buildings such as residential homes, school facilities, various lodging facilities, officetels, temporary disaster facilities, and rooftop structures.

The modular unit (1) is composed of four vertical members (2) provided at each of the four corners and a horizontal member (3) that connects the upper and lower ends of the neighboring vertical members (2), and has an overall rectangular parallelepiped shape. .

A connector 4 is provided at each corner of the modular unit 1 so that the ends of the vertical member 2 and the horizontal member 3 are joined.

The connector 4 includes a main body block 41, a horizontal member connecting portion 42, a joining plate 43, and a vertical fixing bar 44 (FIGS. 2 and 3).

The main body block 41 and the horizontal member connection part 42 may be formed of concrete integrated with each other.

In particular, if the main block 41 and the horizontal member connection part 42 are manufactured with high-performance concrete (HPC), which has high strength, high durability, and high fluidity, not only the compressive strength but also the tensile strength is superior to that of ordinary concrete. Excellent structural performance. In addition, it has good fluidity and excellent moldability.

Here, high-performance concrete includes ultra-high-performance concrete (UHPC), and ultra-high-performance concrete with a compressive strength of 90 MPa or more and a tensile strength of 6 MPa or more can be used.

The connector 4 can be manufactured using a plastic mold. As a result, it is easier to manufacture than existing steel blocks, and manufacturing costs can be significantly reduced. In addition, there is no need for separate fire resistance treatment, and no welding process is required when assembling the vertical member (2) and horizontal member (3), making construction convenient.

The body block 41 may be formed in a rectangular parallelepiped shape.

The horizontal member connecting portion 42 is formed to protrude integrally with the main body block 41 on two or more sides of the main body block 41 .

When the connector 4 is placed at each corner of the modular unit 1, a vertical member 2 is joined to the top or bottom of each connector 4, and a horizontal member 3 is attached to two orthogonal sides. It is joined.

Accordingly, the horizontal member connecting portions 42 may be formed to protrude in directions perpendicular to each other on the plane of the connector 4.

If the connector 4 is installed in the middle of the modular unit 1 depending on the size of the modular unit 1, an intermediate horizontal member (not shown) may be coupled to the horizontal member 3. In this case, in order to connect the intermediate horizontal members, the main body block 41 may be provided with three horizontal member connection parts 42 in a T-shape in plan.

In order to couple the horizontal member 3 to the horizontal member connecting portion 42, the horizontal member connecting portion 42 may be formed in a shape corresponding to the inner cross-section of the horizontal member 3. And the horizontal member connecting portion 42 can be inserted and joined to the inside of the end of the horizontal member 3.

For example, when the horizontal member 3 is a C-shaped steel, the horizontal member connecting portion 42 has the upper and lower surfaces and outer surfaces of the horizontal member 3 formed in the same shape as the upper and lower flanges and the inner surface of the web, so that they are in close contact with each other. Can be combined.

The joining plate 43 is provided on the upper or lower part of the main body block 41 to join the vertical member 2.

The joining plate 43 can be made of steel.

The joining plate 43 is a part that protrudes from the upper or lower part of the main body block 41 and is joined to the vertical member 2.

The joining plate 43 can be formed into a shape corresponding to the inner cross-section of the vertical member 2 and inserted into the inner end of the vertical member 2.

For example, when the vertical member 2 is a square pipe, the inner edge of the vertical member 2 may be rounded (Figure 4). Accordingly, the joining plate 43 can also be easily inserted into the interior of the vertical member 2 by chamfering its edges.

Since the vertical member 2 is joined to the upper part of the connector 4 located at the lower part of the modular unit 1, a joining plate 43 is provided on the upper part of the main body block 41. And since the vertical member 2 is joined to the lower part of the connector 4 located at the top of the modular unit 1, a joining plate 43 is provided at the lower part of the main body block 41.

The vertical fixing bar 44 is provided and embedded in the vertical direction inside the main body block 41 (FIG. 3).

Inside the main body block 41, a plurality of vertical fixing bars 44 may be arranged in the vertical direction to directly transfer the stress caused by the load of the horizontal member 3 to the vertical member 2.

The vertical fixing bar 44 transmits the stress transmitted to the horizontal member connecting portion 42 by the load of the horizontal member 3 to the vertical member 2.

A head portion 441 with an enlarged cross-section may be formed on the upper part of the vertical fixing bar 44 so that the vertical fixing bar 44 is stably fixed inside the main body block 41.

Figure 6 is a perspective view showing a joint plate.

As shown in Figures 3 and 6, a bar fastening hole 431 is formed on the side where the joining plate 43 is joined to the main body block 41, and one end of the vertical fixing bar 44 is It can be screwed into the bar fastening hole 431.

One end of the vertical fixing bar 44 can be fixed to the joining plate 43 so that the stress caused by the horizontal member 3 is directly transmitted to the vertical member 2 through the vertical fixing bar 44.

For this purpose, a plurality of bar fastening holes 431 with female threads formed on the inner peripheral surface may be formed at a predetermined depth in the joining plate 43. And, by forming a thread on the outer peripheral surface of the end of the vertical fixing bar 44, the end of the vertical fixing bar 44 can be screwed to the bar fastening hole 431.

When the vertical fixing bar 44 is fixed to the joining plate 43, the position of the vertical fixing bar 44 can be fixed when manufacturing the connector 4, making manufacturing convenient.

As shown in FIGS. 4 and 5, the upper and lower surfaces of the horizontal member connecting portion 42 are provided with insert nuts 45 to which coupling bolts 5 are fastened to secure the horizontal member 3 to the horizontal member connecting portion 42. ) are each embedded, and a bolt fastening hole 432 may be formed on each side of the joint plate 43 to which a coupling bolt 5 for fixing the vertical member 2 to the joint plate 43 is fastened. .

In order to fix the horizontal member 3 and the vertical member 2 to the horizontal member connection portion 42 and the joint plate 43, respectively, an insert nut 45 is embedded in the horizontal member connection portion 42, and the joint plate 43 ), a bolt fastening hole 432 can be formed.

In order to transmit the bending of the horizontal member 3 to the horizontal member connecting portion 42, insert nuts 45 may be installed embedded in the upper and lower surfaces of the horizontal member connecting portion 42, respectively.

At this time, through holes (H) may be formed in the upper and lower flanges of the horizontal member (3) at positions corresponding to the insert nuts (45), respectively.

Therefore, with the horizontal member connecting portion 42 inserted into the end of the horizontal member 3, the coupling bolt 5 is inserted through the through hole H and fastened to the insert nut 45, thereby forming the horizontal member 3 ) can be fixed to the horizontal member connection part 42.

Since the insert nut 45 can be pre-embedded in the horizontal member connecting portion 42, the coupling bolt 5 can be easily fastened in one direction.

In order to fix the vertical member 2 by joining it to the joining plate 43, bolt fastening holes 432 having female threads formed on the inner peripheral surface may be formed on each side of the joining plate 43.

At this time, a through hole (H) may be formed in the vertical member (2) at a position corresponding to the bolt fastening hole (432).

Therefore, with the joining plate 43 inserted into the end of the vertical member 2, the coupling bolt 5 is inserted through the through hole H and fastened to the bolt fastening hole 432, thereby forming the vertical member 2. ) can be fixed to the joining plate (43).

Figure 7 is a diagram illustrating the concept of stress transfer using a strut tie model.

As shown in FIGS. 3 and 7, a horizontal fixing bar 46 extending into the interior of the horizontal member connecting portion 42 may be provided inside the main body block 41.

The horizontal member connecting portion 42 protruding from the main body block 41 is a member with a large swing compared to its length, and can be designed using a strut tie model.

The strut tie model is a reasonable design method for concrete members with complex stress flows due to their geometric shapes.

Accordingly, the horizontal member connection portion 42 is provided with a downwardly inclined strut (S: strut) that transmits compressive stress to the vertical load acting on the horizontal member 3 and is provided in the horizontal direction toward the main body block 41 from the top to provide tension. It can be modeled as a tie (T: tie) that transmits stress.

Since the main body block 41 and the horizontal member connection part 42 can be formed of high-performance concrete with very high compressive strength, the concrete itself can sufficiently function as a strut.

However, even though the tensile strength of high-performance concrete is much greater than that of ordinary concrete, the tie part requires separate tension members.

For this purpose, a horizontal fixing bar 46 that serves as a tie can be placed inside the main body block 41.

The horizontal fixing bar 46 may be provided to cross the main body block 41 and the horizontal member connecting portion 42.

Since the direction of the load acting on the horizontal member connecting portion 42 of the connectors 4 located at the upper and lower portions acts in opposite directions, the horizontal fixing bar 46 is formed as a pair at the upper and lower portions of the horizontal member connecting portion 42. It can be configured to support tensile stress no matter which direction the load is applied.

The horizontal anchoring bar 46 can be formed as a closed hoop to be stably anchored inside the main body block 41. Accordingly, the horizontal anchoring bar 46 restrains the concrete inside, so a confinement effect can be expected, and the ties can be configured in two rows.

In this case, the vertical fixing bar 44 can be configured to penetrate the horizontal fixing bar 46 so that the stress of the horizontal member 3 can be more smoothly transmitted to the vertical member 2.

1: Modular unit
2: Vertical member
3: Horizontal member
4: connector
41: Body block
42: Horizontal member connection part
43: Joint plate
431: Bar fastener
432: Bolt fastener
44: Vertical fixation bar
441: Head part
45: Insert nut
46: Horizontal fixing bar
5: Combined bolt
H: Through hole

Claims (4)

In a modular unit (1) consisting of a vertical member (2) provided at the four corners to be spaced apart from each other and a horizontal member (3) connecting the upper and lower ends of the adjacent vertical members (2), the vertical member (2) It relates to a connector (4) for a modular unit for joining a horizontal member (3),
Body block 41 made of concrete;
Horizontal member connecting portions 42 extending from the main body block 41 and integrally protruding from at least two sides of the main body block 41 to join the horizontal members 3;
A joining plate 43 provided on the upper or lower part of the main body block 41 to join the vertical member 2; and
A plurality of vertical fixing bars (44) provided in a vertical direction and embedded within the main body block (41); A connector for a modular unit equipped with a joining plate, characterized in that it consists of.
In paragraph 1:
A bar fastening hole 431 is formed on the side where the joining plate 43 is joined to the main body block 41, and one end of the vertical fixing bar 44 is screwed to the bar fastening hole 431. A connector for a modular unit equipped with a joining plate, characterized in that.
In paragraph 1:
Insert nuts 45 to which coupling bolts 5 for fixing the horizontal member 3 to the horizontal member connection 42 are fastened are respectively embedded in the upper and lower surfaces of the horizontal member connecting portion 42, and the joining plate 43 ) A connector for a modular unit equipped with a joint plate, characterized in that a bolt fastening hole 432 is formed on each side of the vertical member 2 to which a coupling bolt 5 for fixing the joint plate 43 is fastened. .
In paragraph 1:
A connector for a modular unit equipped with a joining plate, characterized in that the interior of the main body block (41) is provided with a horizontal fixing bar (46) extending into the interior of the horizontal member connecting portion (42).

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