Joint structure between preassembled column assembly and PC beam

Abstract

The present invention relates to a joint structure between a preassembled column assembly and a PC beam, in which a through-type bracket provided in a panel zone of the preassembled column assembly allows the PC beam to be mounted on a portion protruding outward from the preassembled column assembly, thereby enabling easy joining of the PC beam to the factory-manufactured preassembled column assembly, and is further applicable to various forms of PC beams joined to columns in two directions, such as PC lattice beams.

Description

Joint structure of prefabricated column assembly and PC beam

[0001] The present invention relates to a connection structure between a pre-assembled column assembly and a PC beam, which can easily connect a PC beam to a factory-manufactured pre-assembled column assembly by placing a PC beam on a portion protruding outward from the pre-assembled column assembly through a through-type bracket provided in the panel zone of the pre-assembled column assembly, and which can also be applied to various types of PC beams that are connected to columns in two directions, such as a PC lattice beam.

[0002] Reinforced concrete members, which are widely used in the construction of building structures, are constructed in the following order: after installing the formwork, reinforcing bars are placed inside the formwork, and then concrete is poured and cured.

[0003] Conventional reinforced concrete construction methods require formwork installation and reinforcement placement on-site, which consumes significant time and makes it difficult to ensure consistent quality. Furthermore, separate scaffolding must be installed to support the formwork and resist the pressure of concrete pouring, adding additional scaffolding installation and dismantling processes. The interference of scaffolding hinders on-site workspace and access, and poses safety risks.

[0004] In particular, large-sized components are used in structures that require high floor heights and long spans, such as semiconductor and display factories and logistics centers. However, large-sized components inevitably require work at heights during construction, which reduces workability and safety, and the scale of temporary installation, such as system supports, also increases, increasing construction costs.

[0005] To solve the problems of the conventional reinforced concrete construction method, the application of precast concrete construction method, in which reinforced concrete members are produced in a factory and assembled on site, is increasing.

[0006] Precast concrete construction methods can omit on-site work such as installing and dismantling formwork, installing scaffolding to support the formwork, and placing reinforcing bars, and can significantly shorten the construction period because there is no need for concrete curing.

[0007] However, precast concrete members have a large self-weight, so there are limitations in applying them to large members due to concerns about excessive lifting burden and safety accidents when the member size increases.

[0008] Therefore, in order to solve the problems of the conventional reinforced concrete construction method and precast concrete construction method, a prefabricated column with a formwork-integrated type that attaches a lightweight permanent formwork to the prefabricated column frame was developed (Patent Registration No. 10-1490748).

[0009] The above technology is configured by placing a vertical L-shaped steel member with high rigidity inside a column and connecting adjacent L-shaped steel members with horizontal support members, and by attaching a formwork to the horizontal support members in advance.

[0010] In other words, since the formwork is pre-attached at the factory and delivered to the site, on-site rebar placement and formwork installation and dismantling processes are significantly omitted, significantly shortening the construction period. Furthermore, the steel members (L-shaped steel members) are placed on the perimeter of the column members, ensuring excellent lateral performance and stable self-support during installation. Furthermore, compared to precast concrete members, they are lightweight and require less lifting, making them suitable for application to large columns. Furthermore, since the steel members are embedded within the concrete, separate fire-resistant treatment is not required.

[0011] Meanwhile, when applying the above formwork-integrated prefabricated column as a column member when constructing a large structure, the beam member can be made of a PC member because the member size is relatively small compared to the column member.

[0012] However, since the prefabricated column with integral formwork is closed by prefabricating a lightweight permanent formwork on the outside, separate details for PC beam connection are required as in Patent No. 10-2634379 in order to use it in combination with PC beams.

[0013] In the above registered patent, in order to attach a PC beam to a pre-assembled column assembly, a U-shaped bracket is provided on one side of the panel zone of the pre-assembled column assembly, and the end of the PC beam is inserted into the bracket and placed therein.

[0014] However, the above technology is difficult to apply to PC beams that are joined to two adjacent sides of a column, such as PC lattice beams (Patent No. 10-0392188) that integrate multiple beams into a lattice shape.

[0015] In order to solve the above problems, the present invention provides a connection structure between a prefabricated column assembly and a PC beam, which can easily connect a PC beam to a factory-manufactured prefabricated column assembly, and can also be applied to various types of PC beams that are connected to columns in two directions, such as a PC lattice beam.

[0016] According to a preferred embodiment, the present invention provides a joint structure of a prefabricated column assembly and a PC beam, characterized by comprising: a prefabricated column assembly having a plurality of vertical molded steel members provided in a vertical direction at each corner inside the column member to form a composite concrete column member; a through-type bracket having a pair of support plates vertically arranged and spaced apart from each other in each direction, penetrating a panel zone of the prefabricated column assembly in a horizontal direction perpendicular to each other, and having both ends protruding outwardly of the prefabricated column assembly; and a PC beam mounted on an upper portion of the through-type bracket protruding outwardly of the prefabricated column assembly.

[0017] According to another preferred embodiment, the present invention provides a joint structure between a pre-assembled column assembly and a PC beam, characterized in that the through-type bracket further includes a mounting plate on the upper portion of a pair of support plates protruding outwardly from the pre-assembled column assembly.

[0018] According to another preferred embodiment, the present invention provides a joint structure between a prefabricated column assembly and a PC beam, characterized in that a panel zone steel plate is provided on the outside of the panel zone of the prefabricated column assembly to wrap the outside of the column member.

[0019] According to another preferred embodiment, the present invention provides a joint structure between a prefabricated column assembly and a PC beam, characterized in that a connecting anchorage bar is provided in the panel zone of the prefabricated column assembly, which penetrates the facing panel zone steel plate and has both ends protruding outside the panel zone steel plate.

[0020] According to another preferred embodiment, the present invention provides a joint structure of a prefabricated column assembly and a PC beam, characterized in that each side of the prefabricated column assembly further includes a seat plate that supports a pair of support plates by having both ends joined to the front surfaces of the vertical molded steel members on both sides.

[0021] According to another preferred embodiment, the present invention provides a joint structure of a prefabricated pillar assembly and a PC beam, characterized in that the pedestal plate is provided at the height of the support plate and the support plate penetrates therethrough.

[0022] According to the present invention, the following effects are achieved.

[0023] First, by installing a PC beam on a portion protruding outwardly of the pre-assembled column assembly through a through-bracket provided in the panel zone of the pre-assembled column assembly, a connection structure between the pre-assembled column assembly and the PC beam can be provided, which allows for easy connection of the PC beam to the factory-manufactured pre-assembled column assembly through a simple installation method.

[0024] Second, when forming a chamfered L-shaped joint groove at the corner of the PC lattice beam, the PC lattice beam can be simultaneously mounted and joined to two adjacent through-brackets of the pre-assembled column assembly. In other words, it can be applied to various types of PC beams that are joined to columns in two directions.

[0025] Figure 1 is a perspective view showing the joint structure of the prefabricated column assembly of the present invention and the PC beam.

[0026] Figure 2 is a perspective view showing the state in which concrete has been poured and construction has been completed in Figure 1.

[0027] Figure 3 is a perspective view showing a through-type bracket.

[0028] Figure 4 is a perspective view showing the state of connection between a vertical mold steel member and a through-type bracket.

[0029] Figure 5 is a perspective view showing a PC beam as a grid beam.

[0030] Figure 6 is a perspective view showing a state in which a PC beam, which is a grid beam, is installed.

[0031] Figure 7 is a perspective view showing a prefabricated column assembly equipped with a panel zone plate.

[0032] Figure 8 is a perspective view showing a pre-assembled column assembly equipped with an auxiliary angle.

[0033] Figure 9 is a perspective view showing a PC board.

[0034] Fig. 10 is a cross-sectional view showing an embodiment equipped with a connecting fixing bar.

[0035] Figure 11 is a bottom perspective view showing the joint relationship of the seat plate.

[0036] In order to achieve the above object, the joint structure of the prefabricated column assembly and the PC beam of the present invention is characterized by comprising: a prefabricated column assembly in which a plurality of vertical molded steel members are provided in a vertical direction at each corner inside the column member to form a composite concrete column member; a penetrating bracket in which a pair of support plates spaced apart from each other in each direction are vertically arranged and protrude outwardly of the prefabricated column assembly, penetrating a panel zone of the prefabricated column assembly in a horizontal direction perpendicular to each other, and having both ends protruding outwardly of the prefabricated column assembly; and a PC beam mounted on an upper portion of the penetrating bracket protruding outwardly of the prefabricated column assembly.

[0037] Hereinafter, the present invention will be described in detail with reference to the attached drawings and preferred embodiments.

[0038]

[0039] Fig. 1 is a perspective view showing the joint structure of the prefabricated column assembly of the present invention and the PC beam, Fig. 2 is a perspective view showing the state in which the concrete is poured and the construction is completed in Fig. 1, and Fig. 3 is a perspective view showing a penetrating bracket, Fig. 4 is a perspective view showing the state in which the vertical mold steel and the penetrating bracket are joined, Fig. 5 is a perspective view showing a PC beam as a lattice beam, and Fig. 6 is a perspective view showing the state in which the PC beam as a lattice beam is installed.

[0040] As illustrated in FIGS. 1 to 6, the joint structure of the prefabricated column assembly of the present invention and the PC beam is characterized by comprising: a prefabricated column assembly (10) in which a plurality of vertical molded steel members (11) are provided in a vertical direction at each corner inside the column member (1) to form a composite concrete column member (1); a through-type bracket (2) in which a pair of support plates (21) are vertically arranged and spaced apart from each other in each direction, penetrating the panel zone of the prefabricated column assembly (10) in a horizontal direction perpendicular to each other, and both ends protrude outwardly of the prefabricated column assembly (10); and a PC beam (3) mounted on the upper portion of the through-type bracket (2) protruding outwardly of the prefabricated column assembly (10).

[0041] The present invention provides a connection structure between a pre-assembled column assembly (10) manufactured in a factory and a PC beam, which can easily connect a PC beam (3) to the pre-assembled column assembly (10), and which can be applied to various types of PC beams (3) that are connected to columns in two directions, such as PC lattice beams.

[0042] The above prefabricated column assembly (10) is prefabricated in a factory or the like to form a composite concrete column member (1).

[0043] The above prefabricated column assembly (10) is configured to include a plurality of vertical mold steel members (11) arranged vertically at each corner inside the column member (1).

[0044] The above vertical mold steel (11) is placed at a certain distance from the outer surface of the column member (1) toward the inside and embedded in the concrete (C) of the column member (1) (Fig. 2).

[0045] The above vertical cast steel material (11) can use L-shaped steel.

[0046] Depending on the width of the above column member (1), an additional vertical cast steel member (11) may be placed in the middle of each side of the column member (1).

[0047] Neighboring vertical mold steel members (11) can be interconnected by horizontal connecting members (12) arranged laterally (Fig. 4).

[0048] The above horizontal connecting member (12) can be formed as an angle or Z-bar of L-shaped cross-section, and one leg can be connected to the outer surface of the vertical mold steel member (11) by means of bolt fastening, etc.

[0049] The above vertical cast steel (11) is embedded inside the concrete (C) and acts as a vertical cast steel of the column member (1), and the above horizontal connecting member (12) acts as a belt reinforcing bar that wraps around the outside of the vertical cast steel (11).

[0050] A lightweight permanent formwork (13) can be attached to the outside of the above-mentioned prefabricated column assembly (10) (Fig. 1, Fig. 2).

[0051] The above lightweight permanent formwork (13) can be formed by bending a thin steel plate.

[0052] The above lightweight permanent formwork (13) can be connected to a horizontal connecting member (12).

[0053] To this end, an L-shaped or T-shaped rib may be formed by bending on the back surface of the lightweight permanent formwork (13), and a catch groove may be formed in the horizontal connecting member (12) into which the rib is inserted and caught.

[0054] A penetrating bracket (2) is provided in the panel zone of the pre-assembled pillar assembly (10) to which the PC beam (3) described later is joined.

[0055] The above-mentioned penetrating bracket (2) is provided with a pair of support plates (21) spaced parallel to each other on a plane, and two sets of a pair of support plates (21) are arranged longitudinally and transversely so as to be perpendicular to each other, forming a well shape.

[0056] Each of the above support plates (21) penetrates the panel zone of the pre-assembled column assembly (10) and both ends protrude to the outside of the pre-assembled column assembly (10).

[0057] The above support plate (21) is installed vertically so as to sufficiently exhibit shear and bending rigidity and not to cause any obstruction to the concrete filling poured inside the pre-assembled column assembly (10).

[0058] In Fig. 1, the support plates (21) are shown as being provided so that two of them protrude from each side of the column member (1), but depending on the width of the column member (1) and the PC beam (3) to which it is connected, additional support plates (21) may be provided so that three or more support plates (21) may be provided on each side of the column member (1).

[0059] The above PC board (3) is mounted on the upper part of the portion where the above penetrating bracket (2) protrudes outward from the pre-assembled pillar assembly (10).

[0060] Accordingly, the above PC board (3) can be installed by a simple mounting method, making construction simple and ensuring construction safety.

[0061] When the dances of the PC beams (3) arranged in mutually orthogonal directions are different, the pair of orthogonal support plates (21) can be formed to have different heights.

[0062] The above PC beam (3) may be a lattice beam configured such that multiple rows of horizontal beams (3a) and vertical beams (3b) intersect each other to form a lattice shape (Fig. 5, Fig. 6).

[0063] In this case, a chamfered joint groove (30) in the shape of the letter L can be formed at the corner of the PC beam (3) so that the corner of the pre-assembled column assembly (10) can be accommodated. Accordingly, the PC beam (3) can be simultaneously mounted on two adjacent through-type brackets (2) of the pre-assembled column assembly (10).

[0064]

[0065] As shown in FIG. 3, the penetrating bracket (2) may further be provided with a mounting plate (22) on top of a pair of support plates (21) protruding outward from the pre-assembled pillar assembly (10).

[0066] In order to stably support the above PC board (3), a support plate (22) may be provided on the upper part of a pair of support plates (21).

[0067] The above-mentioned support plate (22) is provided horizontally on top of a pair of support plates (21) and forms a T-shaped cross-sectional shape together with the pair of support plates (21).

[0068] The above-mentioned support plate (22) can prevent buckling of the support plate (21) when an upper load is applied by connecting the upper ends of a pair of support plates (21) to each other and supporting them laterally.

[0069] The above support plates (21) are connected to each other by penetrating the pre-assembled column assembly (10), while the above mounting plates (22) can be individually provided on each surface of each column member (1) without penetrating the pre-assembled column assembly (10) (Fig. 4).

[0070] The mounting plates (22) provided on each side of the above-mentioned pre-assembled pillar assembly (10) can be provided with different heights depending on the length of the PC beam (3).

[0071]

[0072] Fig. 7 is a perspective view showing a pre-assembled column assembly equipped with a panel zone plate, and Fig. 8 is a perspective view showing a pre-assembled column assembly equipped with an auxiliary angle.

[0073] As shown in Fig. 7, a panel zone steel plate (14) that wraps around the outside of the column member (1) may be provided outside the panel zone of the pre-assembled column assembly (10).

[0074] The panel zone is a region where stress is transferred by the intersection of columns and beams, and stress is concentrated at the joint. Therefore, a panel zone steel plate (14) may be provided to surround the panel zone to restrain the internal concrete at the joint and increase strength and ductility.

[0075] At this time, the above support plate (21) is provided to penetrate the facing panel zone steel plate (14).

[0076] The above-mentioned mounting plate (22) can also be inserted into the inside of the panel zone steel plate (14) by a certain length by having one end portion penetrate the panel zone steel plate (14). If only a portion of the end of the mounting plate (22) is inserted into the inside of the panel zone steel plate (14), it does not cause any problems when pouring concrete into the inside of the panel zone steel plate (14).

[0077] The above panel zone steel plate (14) separates the concrete of the column member (1) and the concrete of the end of the PC beam (3). Therefore, in order to structurally integrate them, a shear connector (141) may be provided to penetrate the panel zone steel plate (14) and protrude to the inside and outside of the panel zone steel plate (14).

[0078] At this time, it is difficult for a general stud bolt to penetrate the panel zone steel plate (14) because the head is formed as one piece. Therefore, a bar-shaped member such as a headless bolt or a reinforcing bar with threads formed at the end thereof may be penetrated through the panel zone steel plate (14), and a nut or the like may be fastened to the end of the bar-shaped member to form a shear connecting member (141).

[0079] A lightweight permanent formwork (13) formed of a thin plate is provided at the upper and lower portions of the above panel zone, and in the panel zone, a panel zone steel plate (14) acts as a formwork instead of the lightweight permanent formwork (13).

[0080] The outer surface of the joint where the above panel zone steel plate (14) and the lightweight permanent formwork (13) meet can be wrapped with a steel plate band (16) to prevent leakage of concrete paste (Fig. 7).

[0081] The above panel zone steel plate (14) is provided at a certain interval on the outside of the vertical mold steel material (11). Therefore, an auxiliary angle (15) may be provided to attach the panel zone steel plate (14) to the outside of the panel zone of the pre-assembled column assembly (10) (Fig. 8).

[0082] The above auxiliary angles (15) may be assembled in a rectangular shape so as to surround the exterior of the pre-assembled column assembly (10) by being provided in multiple numbers vertically and horizontally. This auxiliary angle (15) assembly may be mounted on the upper part of the horizontal connecting member (12) at the bottom of the panel zone.

[0083] The above panel zone plate (14) can be joined to each outer surface of the auxiliary angle (15) assembly.

[0084]

[0085] Fig. 9 is a perspective view showing a PC board, and Fig. 10 is a cross-sectional view showing an embodiment equipped with a connecting fixing bar.

[0086] As illustrated in Fig. 10, the panel zone of the prefabricated column assembly (10) may be provided with a connecting anchorage bar (17) that penetrates the facing panel zone steel plate (14) and has both ends protruding outside the panel zone steel plate (14).

[0087] In order to connect the PC beam (3) to the above-mentioned column member (1) in a single-ended continuous structure, a connecting anchorage bar (17) that can anchor the upper and lower main reinforcement (34) of the PC beam (3) to the column member (1) may be provided.

[0088] To this end, the end of the PC board (3) is configured with a pair of side plates (31) spaced apart from each other and a lower plate (32) connecting the lower portions of the pair of side plates (31), so that it can be formed into a U-shaped cross-section with an open upper portion and a pocket portion (33) formed inside (Fig. 9).

[0089] After installing the above PC beam (3), the upper and lower main reinforcements (34) arranged inside the pocket portion (33) of the PC beam (3) or on the upper and lower portions of the PC beam (3) can be connected to the connecting fixing bar (17) using a coupler (171) or the like.

[0090] In the case where the upper and lower main bars (34) are embedded in the interior of the PC beam (3) and protrude into the interior of the pocket portion (33), a separate connecting bar (172) may be used to connect the connecting fixing bar (17) and the upper and lower main bars (34).

[0091] When the above PC beam (3) is lifted and placed on the upper portion of the mounting plate (22), a part of the lower plate (32) at the end of the PC beam (3) can be configured to be open so that the connecting fixing bar (17) positioned through the panel zone plate (14) does not interfere.

[0092] Since the open portion of the above lower plate (32) is closed by the mounting plate (22) of the through-type bracket (2), there is no need to install a separate formwork when pouring concrete on site inside the pocket portion (33).

[0093] A catch bar (23) can be fixedly connected to the upper surface of the above-mentioned mounting plate (22) to ensure construction safety by limiting the lateral movement of the PC beam (3) mounted on the upper portion of the mounting plate (22) (Fig. 3, Fig. 10).

[0094] The above-mentioned hook (23) can be embedded in the concrete poured into the pocket portion (33) of the PC beam (3) and can serve as a shear connector. In this case, since the lower portion of the PC beam (3) is firmly fixed to the support plate (22), a vibration reduction effect can also be obtained.

[0095]

[0096] Figure 11 is a bottom perspective view showing the joint relationship of the seat plate.

[0097] As shown in Fig. 11, each side of the prefabricated column assembly (10) may further be provided with a pedestal plate (18) that supports a pair of support plates (21) by having both ends joined to the front surfaces of the vertical mold steel members (11) on both sides.

[0098] The above-mentioned penetrating bracket (2) is embedded in the concrete poured inside the pre-assembled column assembly (10) to form a structure that is integrated with the column member (1). However, before concrete pouring and curing, the penetrating bracket (2) must be separately temporarily fixed, and separate measures must be taken to transfer the load of the PC beam (3) to the vertical mold steel (11).

[0099] Here, a method of supporting the support plate (21) of the through-type bracket (2) using a horizontal connecting member (12) connecting the adjacent vertical mold steel members (11) can be considered.

[0100] However, since the horizontal connecting member (12) only needs to be supported by joining the lightweight permanent formwork (13) of the thin plate, a relatively thin lightweight steel member can be used. The horizontal connecting member (12) formed of such a lightweight steel member has difficulty in properly supporting the load of the PC beam (3) transmitted by the support plate (21).

[0101] In addition, in order to support the support plate (21) with the horizontal connecting member (12), the horizontal connecting member (12) must also be placed in the panel zone. However, since the horizontal connecting member (12) has one leg extended to the lightweight permanent formwork (13) in order to connect the lightweight permanent formwork (13), when a relatively thick panel zone steel plate (14) is installed in the panel zone, there is the inconvenience of having to cut one leg due to interference from the protruding leg of the horizontal connecting member (12).

[0102] Therefore, it is desirable to separately install a flat-shaped seat plate (18) on each side of the above-mentioned prefabricated pillar assembly (10) to support the support plate (21).

[0103] The above-mentioned seat plate (18) can be formed in the form of a flat plate that is long from left to right. Then, the rear surfaces of both ends of the seat plate (18) can be pressed against the front surfaces of the vertical molded steel members (11) on both sides provided on each side of the pre-assembled column assembly (10) and then fixed by bolting.

[0104] The above support plate (21) is connected to the seat plate (18) and transmits the load of the PC beam (3) to the vertical mold steel (11) via the seat plate (18).

[0105] In the case where an additional vertical mold steel member (11) is provided between adjacent vertical mold steel members (11), the seat plate (18) can also be fixed to the vertical mold steel member (11) placed in the middle by bolt fastening.

[0106]

[0107] As shown in Fig. 11, the seat plate (18) is provided at the height of the support plate (21) so that the support plate (21) can penetrate therethrough.

[0108] The above-mentioned seat plate (18) is provided at the lower part of the support plate (21), so that the support plate (21) can be placed on the upper part of the seat plate (18).

[0109] However, the above panel zone steel plate (14) is fastened to the vertical mold steel (11) by bolts, and when a lightweight permanent formwork (13) with ribs formed on the outside of the seat plate (18) is placed, interference occurs between the ribs of the lightweight permanent formwork (13) and the bolts.

[0110] Therefore, it is desirable to extend the length of the panel zone steel plate (14) so ​​that a flat panel zone steel plate (14) is provided on the outside of the above-mentioned seat plate (18).

[0111] In this case, if the above-mentioned seat plate (18) is provided at the bottom of the support plate (21), the length of the panel zone steel plate (14) becomes excessively long, increasing the amount of steel required, which is uneconomical.

[0112] In addition, the above-mentioned seat plate (18) can replace the role of a horizontal connecting member by connecting adjacent vertical mold steel members (11), but it is difficult to place a horizontal connecting member (12) inside the panel zone due to the thickness of the panel zone steel plate (14). Therefore, if the above-mentioned seat plate (18) is provided under the support plate (21), the unsupported length of the vertical mold steel member (11) inside the panel zone may become excessively long, thereby reducing the buckling resistance of the vertical mold steel member (11).

[0113] Accordingly, in order to minimize the vertical width of the panel zone steel plate (14) and reduce the unsupported length of the vertical mold steel (11) to sufficiently exhibit buckling resistance performance, the seat plate (18) may be provided at the same height as the support plate (21) rather than below the support plate (21).

[0114] At this time, the support plate (21) must protrude outward by penetrating the pre-assembled column assembly (10), so it is configured to also penetrate the seat plate (18).

[0115] When the vertical width of the above-mentioned seat plate (18) is smaller than the vertical width of the support plate (21), the seat plate (18) can be divided on the left and right sides of the support plate (21) and the ends can be fixed to the side of the support plate (21) by welding.

[0116] The joint structure of the pre-assembled column assembly and the PC beam of the present invention has industrial applicability in that the PC beam can be easily joined to the factory-manufactured pre-assembled column assembly by a simple mounting method by having the PC beam mounted on the outer protruding portion of the pre-assembled column assembly through a through-type bracket provided in the panel zone of the pre-assembled column assembly.

Claims

1. A prefabricated column assembly (10) in which a plurality of vertical molded steel members (11) are provided in a vertical direction at each corner inside the column member (1) to form a composite concrete column member (1); A penetrating bracket (2) having a pair of support plates (21) spaced apart from each other in each direction and vertically arranged to penetrate the panel zone of the pre-assembled column assembly (10) in a horizontal direction perpendicular to each other, and having both ends protruding outward from the pre-assembled column assembly (10); and A joint structure between a pre-assembled column assembly and a PC beam, characterized in that it comprises a PC beam (3) mounted on the upper part of a through-type bracket (2) protruding outwardly of the pre-assembled column assembly (10); 2. In paragraph 1, A joint structure between a pre-assembled column assembly and a PC beam, characterized in that the above-mentioned through-bracket (2) further includes a mounting plate (22) on the upper portion of a pair of support plates (21) protruding outward from the pre-assembled column assembly (10).

3. In paragraph 1, A joint structure between a pre-assembled column assembly and a PC beam, characterized in that a panel zone steel plate (14) is provided on the outside of the panel zone of the pre-assembled column assembly (10) to wrap the outside of the column member (1).

4. In paragraph 3, A joint structure between a prefabricated column assembly and a PC beam, characterized in that the panel zone of the prefabricated column assembly (10) is provided with a connecting anchorage bar (17) that penetrates the facing panel zone steel plate (14) and protrudes both ends outward from the panel zone steel plate (14).

5. In paragraph 1, A joint structure of a prefabricated column assembly and a PC beam, characterized in that each side of the prefabricated column assembly (10) is further provided with a seat plate (18) that supports a pair of support plates (21) by having both ends joined to the front of the vertical molded steel members (11) on both sides.

6. In paragraph 5, The above-mentioned seat plate (18) is provided at the height of the support plate (21) and the PC beam joint structure is characterized in that the support plate (21) penetrates therethrough.

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