KR101115015B1 - Construction method for building remodeling by using precast panel, and connecting structure for remodeling precast panel - Google Patents

Abstract

The present invention relates to a connection structure of PC panels and columns when remodeling old buildings such as old schools, public buildings, large buildings, etc. using a precast concrete panel method. More specifically, the connecting rod and the connecting piece on one side of the joint member is cast concrete to form a precast concrete (PC) panel to be exposed to the outside; Forming a bracket so that the fixing bolt is fitted to both bolt holes to be fixed to the pillar; Connecting the PC panel to the pillar by being placed on the half groove of the support bracket but closely contacting the PC panel to the pillar; Forming a filling part by filling the mortar grouting or epoxy resin so that the joint member and the supporting bracket are buried;

The remodeling construction method is carried out by using a finishing material on the outer surface of the PC panel, the present invention is to remodel the building to improve the tensile force for the horizontal, the load force for the vertical, the durability of the building, at the same time the space of the residential environment The present invention relates to a building remodeling construction method using a precast panel and a remodeling precast panel connection structure to facilitate the securing and convenience of living lines.

PC panel, joint member, support bracket, hook, remodel

Description

Building remodeling method using precast panel and remodeling Precast panel connection structure {CONSTRUCTION METHOD FOR BUILDING REMODELING BY USING PRECAST PANEL, AND CONNECTING STRUCTURE FOR REMODELING PRECAST PANEL}

The present invention relates to a connection structure of PC panels and columns when remodeling old buildings such as old schools, public buildings, large buildings, etc. using a precast concrete panel method. In more detail, when the PC panel is connected to the pillar, the joint member and the support bracket are fixed in such a manner as to span each other so as to be able to withstand the tensile force for the lateral support reinforcement and the load force for the longitudinal reinforcement. Remodeling public buildings and large buildings such as aging schools, buildings, and government offices to protect them from earthquakes, while precast (PC) panels allow for easy construction and reinforcement of lateral support for superior performance. The present invention relates to a building remodeling construction method using a precast panel and a remodeling precast panel connection structure, which are installed between internal and external columns and beams to withstand loads.

Aspects such as the rapid increase in the demand for housing due to the rapid progress of urbanization, the improvement of the level of demand for improving the quality and utilization of aging inventory buildings, the need for environmentally friendly building management policies, and the prevention of land development due to reckless building Remodeling is recommended in the United States, and as a result, interest in remodeling continues to increase as an alternative to the demolition and construction of existing reinforced concrete buildings.

This remodeling activity has been mainly focused on special buildings such as offices, shopping malls, hospitals, etc., but recently, the remodeling of the housing sector, especially high-rise apartment buildings such as apartments, is active. The housing sector is expected to lead the overall remodeling market.

In addition, with increasing environmental concerns and economic efficiency, the government will have a policy stance to reduce environmental waste and recycle the framing of existing apartments as much as possible. It is expected.

On the other hand, with regard to the remodeling of the apartments, the apartments built before 1988 in Korea were designed without earthquake-resistant design due to the lack of provisions for earthquakes. As standards were established, seismic designed apartments were built for earthquakes. Therefore, in the case of the buildings before the introduction of the seismic design (1998), it is not only required to carry out the seismic reinforcement work for the existing frames in remodeling, but also the seismic reinforcement design of the part that is expanded by the remodeling. Should be

Therefore, in the remodeling as described above, the most common method of seismic reinforcement has been made. By using H-beams inclined to the beam and column nodes of the existing building, the lateral support reinforcement of the beam and column frames is reinforced. Was done.

The reinforcement method by steel such as H beam and I beam has the advantage of being prefabricated, but since the axial force does not necessarily pass through the center of steel node, the effect of compression brace at node is less efficient than tensile brace, so the construction cost is relatively high. The problem has been pointed out that there are more and more fireproof coating process has to be added.

The present invention is to solve this problem, it is to be able to easily combine using a joint member and the support bracket when connecting the PC panel to the pillar. Remodel large buildings and public buildings such as old schools, buildings, and public offices to protect them from earthquakes, while precast concrete (PC) panels are installed from the front to the rear even if the gap between the upper and lower parts is narrow. By connecting the PC panel to the column, it is remodeled by installing between the inner and outer columns and beams so that the construction can withstand the tensile force for the convenience of construction and the reinforcement of lateral support for excellent performance and the vertical load for longitudinal reinforcement. In addition to improving the tensile force on the horizontal, the load force on the vertical and durability of the building, it is possible to secure the space of the living environment and the convenience of living lines, and to remodel the building structure suitable for seismic design. Building remodeling construction method and remodeling pre using panel of precast It relates to a test panel connection structure.

The present invention relates to a connection structure of a PC panel and a pillar when renovating an old building such as an old public building or a large building using a Precast Concrete Panel (hereinafter referred to as a "PC panel").

Therefore, in the present invention, the inner shear reinforcement is installed at one side, the joint member having a connecting rod and a connecting piece installed at one end is welded to the shear reinforcement, the shear reinforcing bar is embedded and the connecting rod and the connecting piece at one side of the joint member to the outside. Forming concrete to expose the precast concrete (PC) panel;

Forming a bracket so that two half grooves are formed on one side and fixing bolts are inserted into the bolt holes on both sides of the other bent portion;

Connecting the prepared PC panel to the pillar, but allowing the connecting rod protruding to one side of the joint member of the PC panel to be placed on the half groove of the bracket installed on the pillar, and connecting the PC panel to the pillar as closely as possible.

Forming a filling part by filling a mortar grouting or epoxy resin so that the joint member and the supporting bracket located in the space part between the PC panel and the pillar are buried;

The remodeling construction method is carried out by using a finishing material on the outer surface of the PC panel.

The present invention is carried out as described above, while remodeling public buildings and large buildings such as old schools, buildings, and public offices to be safe from earthquakes, while using precast concrete (PC) panels, easy construction and excellent performance. Remodeling construction method and remodeling precast connection structure using a PC panel installed between the columns and beams inside and outside the building to withstand the tensile force for the lateral support reinforcement and the load force for the longitudinal reinforcement It would be to provide.

The present invention relates to a connection structure of a PC panel and a column when remodeling an old building such as an old public property or a large building using a precast concrete panel. The tensile force of the PC panel is connected to an existing column. It is intended to be durable by being distributed and supported.

 The present invention as described above, first, by using the precast concrete panel to remodel the building to have a durable earthquake-resistant durability of earthquake caused by earthquake changes and climate change in the old building, and to prevent large catastrophe in advance,

Secondly, PC panel is used for remodeling to reduce the ease of work and air, and to have the maximum work efficiency with few people.

Third, due to the improvement of the bearing capacity for the horizontal tension and the vertical load force of the building has the effect of having the same durability as the new building in the old building,

Fourth, the cost of remodeling is reduced compared to new buildings, and the space can be secured for the living environment and the convenience for living routes can be achieved.

Hereinafter, an embodiment of the present invention will be described in detail.

The inner shear reinforcement is installed at one side, and the joint member having the connecting rod and the connecting piece installed at one end is welded to the shear reinforcing rod so that the shear reinforcing steel is embedded and the connecting rod and the connecting piece at one side of the joint member are exposed to the outside. Pouring to form a precast concrete (PC) panel;

Forming a support bracket so that two half grooves are formed at one front side, and fixing bolts are inserted in both side bolt holes of the other bent portion;

Connecting the prepared PC panel to the pillar, but having the connecting rod protruding to one side of the joint member of the PC panel mounted on the half groove of the bracket installed on the pillar, and connecting the PC panel to the pillar as closely as possible.

Forming a filling part by filling a mortar grouting or epoxy resin so that the joint member and the supporting bracket located in the space part between the PC panel and the pillar are buried;

The remodeling construction method is carried out by using a finishing material on the outer surface of the PC panel.

Looking at the connection structure of the PC panel in the remodeling construction made as described above are as follows.

A joint member 20 in which a shear reinforcement 12 is embedded in concrete and welded to one end of the shear reinforcement 12 and fixed thereto;

The shear reinforcement (12) is embedded and the PC panel (10) is formed by pouring concrete to expose the joint member welded on one side;

A support bracket 30 formed with a bolt hole 33 into which a fixing bolt 34 is fitted at one side so as to be installed on a building pillar, and two half grooves 31 formed at one front;

The support bracket 30 is installed on a plurality of pillars, and the joint member 20 installed on one side of the PC panel 10 is connected to span the support bracket 30, and the PC panel 10 and the pillar 60 are connected to each other. Connect the PC panel 10 and the pillar 60 by forming the filling part 50 formed by filling the mortar grouting or epoxy resin so that the joint member 20 and the support bracket 30 located in the space between the parts are buried. It is characterized by a structure.

"형으로 이루어지고 일측 기둥(60)과 연결되는 측면에 2개의 연결봉(22)이 직교방향으로 돌출되고 연결봉(22) 말단에는 걸림편(23)이 결합된 것을 특징으로 한다.The joint member 20 has a transverse cross section "

"It is made of a type and the two connecting rods 22 on the side connected to one side pillar 60 is projected in an orthogonal direction and the connecting rod 22 is characterized in that the engaging piece 23 is coupled.

"형으로 이루어지고 조인트부재(20)의 연결봉(22)이 걸쳐지는 전면에 "

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"형 중 어느 하나의 형상으로 이루어진 요철부(32)가 형성된 것을 특징으로 한다.The support bracket 30 has a longitudinal cross section "

"On the front surface of which the connecting rod 22 of the joint member 20

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It is characterized in that the concave-convex portion 32 is formed in any one of the shape.

 As another embodiment of the present invention, the connecting rod 22 is characterized in that the thread is formed on the entire outer surface of the way that the engaging piece 23 is bolted to the end.

Referring to the construction step for the remodeling of the present invention configured as described in detail as follows.

First Process: Precast Concrete (PC) Panel Forming

In order to form the PC panel 10, first, the shear reinforcement 12 is installed inside the PC panel so that the PC panel can maintain a predetermined tensile force and strength to a load, and at the same time, the joint member 20 at one end of the shear reinforcement 12. To be fixed.

The shear reinforcement 12 may form a frame by vertically connecting the main reinforcing bars as needed.

When the joint member 20 is welded to one end of the shear reinforcement 12, form a form suitable for the panel specification, and then cast the concrete to form the shear reinforcement 12 made in the frame to form a PC panel. .

At this time, the shear joint member is installed at regular intervals on the side of the PC panel corresponding to the column, and one side of the joint member is welded to the ends of a plurality of shear reinforcing bars installed inside the PC panel to transmit the tensile force. The connecting rod 22 and the engaging piece 23 of the joint member protruding to face the concrete is poured and cured so as to be exposed to one side. In addition, a joint member is installed at the upper end and the bottom of the PC panel, and a support bracket is installed at the bottom and the corresponding beam. The joint member installed between the bottom and the beam is installed to be welded to the end of the main reinforcing bar arranged in the vertical direction inside the PC panel.

As described above, the joint member 20 installed at one end of the PC panel 10 is provided with a plurality of joint members 20 at regular intervals in the upper and lower ends or one side length of the PC panel.

PC panel manufactured as described above is preferably manufactured and supplied by a separate manufacturing company for the efficiency of construction and diversification of product supply.

"자 형태가 되도록 형성하되 일측은 개방되어 PC패널(10)의 전단보강근(12)과 용착되어 콘크리트에 매립되고 다른 일측면은 일측으로 돌출되도록 직교방향으로 2개의 연결봉(22)을 형성하되 연결봉(22) 말단부에는 직사각형의 걸림편(23)이 일체형으로 형성되도록 조인트 부재(20)를 형성한다.The joint member 20 is one side of the metal "

"Formed to form a shape, but one side is open and welded with the shear reinforcement (12) of the PC panel 10 is embedded in the concrete and the other one side to form two connecting rods 22 in the orthogonal direction so as to protrude to one side, but connecting rod (22) The joint member 20 is formed at the distal end such that the rectangular engaging pieces 23 are integrally formed.

Second Process: Fabrication of Support Brackets

In order to install the PC panel 10 on the column 60, a connection fixing member is installed on the pillar, and the fixing member is the support bracket 30.

"형으로 이루어지되 전면에는 2개의 반홈(31)이 형성되고 타측은 개방된 상태로 양측 단부가 외향 직각으로 절곡되고 2개의 볼트공(33)이 형성되어 고정볼트(34)가 끼워져 설치되도록 형성된다.The support bracket 30 has a cross section "

"But two half grooves 31 are formed on the front side, and the other side is open so that both ends are bent outward at right angles and two bolt holes 33 are formed so that the fixing bolts 34 are inserted and installed. do.

 The two half grooves 31 formed on both sides of the support bracket front are formed to have a size in which the connecting rods 22 of the joint member 20 are spanned and inserted.

"형, "

"형, "

"형, "

"형 중 어느 하나의 형상으로 이루어진 요철부(32)가 형성된 것을 특징으로 한다.In addition, in another embodiment of the present invention instead of the half groove 31 formed on the front of the support bracket "

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It is characterized in that the concave-convex portion 32 is formed in any one of the shape.

The support bracket 30 formed as above is provided with a plurality on the vertical line so that the PC panel 10 can be fixed to the pillar (60). The support bracket 30 is installed by using the fixing bolt 33 when installed on the pillar 60, but the fixing bolt is fixed by placing the anchor bolt to be inserted into the anchor fixing member 35 in advance.

The anchor fixing member 35 is commonly used as a fixing member that is first installed to put a piece in a concrete building, and first drills a hole in a concrete wall surface and then installs an anchor fixing member 35 in the hole thereof. After the fixing bolt 34 is screwed to the anchor fixing member 35 by screwing or hit-pressing, the fixing bolt 34 enters while opening the anchor fixing member 35 so that the fixing bolt is firmly installed on the concrete wall surface. do.

The joint member 20 and the support bracket 30 are also preferably manufactured and supplied by a manufacturer that specializes in production for ease of construction and diversification of supply.

Step 3: connect to PC panel pillar

After the support bracket 30 is installed on the pillar as described above, the one side joint member 20 of the prepared PC panel is brought into close contact with the pillar 60 to be formed to protrude in a direction perpendicular to one side of the joint member 20. Two connecting rods 22 are connected in such a way as to span the half groove 31 or the uneven portion 32 formed on the front surface of the support bracket 30 installed on the pillar 60.

As described above, when the connecting rod 22 of the joint member 20 is fitted to span the half groove 31 of the supporting bracket 30, the engaging piece 23 formed at the end of the connecting rod 22 is positioned inside the supporting bracket 30. It is connected back.

As described above, when the joint member 20 installed at one end of the PC panel 10 is coupled to the support bracket 30, the PC panel 10 is pushed and fixed to the pillar side as much as possible. The distance moved is protruded from the joint member. It is possible to move within the length of the connecting rod (22).

When the position of the connecting rod 22 when the PC panel 10 is thermally described in detail, if the size of the PC panel installed in the length range of the connecting rod 22 is large, the connecting rod 22 and the engaging piece 23 are close to the pillar. If the position of the PC panel is small and the connecting rod is located outside the half groove and the engaging piece is located close to the inside of the half groove.

The present invention is to install the PC panel 10 so that the connecting rod 22 of the joint member 20 spans the half groove 31 of the support bracket 30 when the PC panel 10 is installed on the pillar 60 as described above. It moves so as to push from the front to the rear so that the connecting piece of the joint member is drawn from one side of the support bracket and fitted into the half groove 31. In this case, if the clearance of the upper and lower spaces for installing the PC panel is large, the connecting rod can be installed so as to be lowered from the top to the lower side, but if the upper and lower spaces are narrow, the PC panel is horizontally moved from the front to the rear so as to span the half groove of the support bracket. Since the present invention is connected between the floor and the beam on which the PC panel is installed is narrow, the space between the upper part of the PC panel and the beam is small, so even if there is no free space, the joint connecting rod can be easily connected to the support bracket.

In addition, the joint brackets installed at the upper and lower ends of the PC panel and the support brackets installed between the beam and the floor are not completely covered like the joint members and the support brackets connected between the PC panel and the pillar, but are fitted in correspondence with each other. When completely hardened by the mortar grouting, the supporting force of the cast steel inside the PC panel is transmitted to the joint member and the supporting bracket located on the upper and lower parts.

4th step: filling part in the space part between PC panel and pillar

When the PC panel 10 is connected to the pillar 60 as described above, a space portion is formed between the PC panel 10 and the pillar 60 as much as the connection length of the joint member 20 and the support bracket 30. The grout is formed using mortar or the filling part 50 is formed using an epoxy resin. When the filling part 50 is formed in the space as described above, since the joint member 20 and the support bracket 30 are buried in the filling part, moisture and oxygen do not penetrate, so rust or corrosion does not occur, so the life is long. Goes.

In addition, by connecting the PC panel 10 to the column 60 using the joint member 20 and the bracket 30, when the tensile force is generated in the building, the shear reinforcement 12 and the joint member 20 in the PC panel 10. And, it is transmitted to the support bracket 30 will have a corresponding resistance to the tensile force.

Thus, even when tensile force is applied to the old aging wall, the PC panel installed on the outer wall or inner wall and column has a corresponding force to the tensile force, thereby suppressing the fatigue of the existing building wall and column. Durability has the same effect as new building.

In addition, seismic resistance to earthquakes can prevent large catastrophes from aging buildings.

In addition, any one of the mortar grouting and epoxy resin used as the filling member in the present invention may be used, but when the space between the PC panel and the pillar is wide, the mortar grouting is used, and when the gap is narrow, the filling is performed using the epoxy resin. It is desirable to.

The accompanying drawings of the present invention constructed as described above are as follows.

 1 is an exploded perspective view of a joint member and a support bracket for connecting a PC panel to a pillar according to the present invention, and a plurality of joint members are installed on a vertical line of one end portion of a PC panel having a predetermined standard. At this time, the number of the join-to member 20 to be installed varies depending on the length of the PC panel.

At this time, the number of the support brackets 30 installed on the vertical line on one surface of the pillar 60 to which the PC panel 10 is connected is installed to correspond to the number of joint members.

In addition, joint members are installed at the upper and lower parts of the PC panel, and support brackets are installed at the beams and the floor, so that the upper and lower parts are connected when the PC panel is connected to the pillar.

As described above, the joint member 20 is coupled to one side end of the PC panel 10, and the bracket 30 is installed on the pillar 60. The connecting rod 22 is inserted so that the support bracket 30 spans the half groove 31.

In this case, a plurality of joint members 20 and the support brackets 30 are connected to each other, which may cause a problem of installation depending on the height of the height. However, the present invention horizontally moves the PC panel from the front to the back of the support rod bracket. Since the gap between the upper end of the PC panel and the beam is narrow, it can be easily installed.

In addition, the length of the gap between the PC panel 10 and the pillar 60 is adjusted in the length range of the connecting rod 22 formed in each joint member 20, so that the PC panel 10 is connected to the pillar 60. do.

The joint member installed at one end of the PC panel in one longitudinal direction and the upper and lower ends thereof is welded to a plurality of shear reinforcing end portions and cast iron end portions located inside the PC panel.

The joint member is welded to two or more shear reinforcing end portions or end portions of the main reinforcing bar for each joint member to have a bearing force.

2 is a lateral cross-sectional view of a PC panel according to the present invention connected to a pillar by using a joint member and a support bracket when the length of the PC panel is short, wherein the joint member 20 coupled to the PC panel 10 is connected to the pillar 60. As an example of being coupled in a spaced apart state from the fixed support bracket 30, in the case of Figure 2 shows a slightly short state of the PC panel, the space between the PC panel 10 and the pillar 60 The part fills the space part by filling the filling member.

The filling part 50 formed in the space part is made of mortar grouting or epoxy resin.

Figure 3 is a lateral cross-sectional view of the state of the PC panel is connected to the column using the joint member and the support bracket when the length of the PC panel according to the present invention when the PC panel is attached to the pillar side as much as possible, the connecting rod of the joint member is deep into the support bracket It is connected to.

Figure 4 is a longitudinal cross-sectional view for showing the side of the PC panel of the present invention connected to the column using the joint member and the support bracket, shown in the longitudinal direction. In order to fix the PC panel to the pillar, a plurality of joint members 20 are installed in the length direction of one end of the PC panel 10. The pillar 60 is connected to each other by installing a bracket 30 at a position corresponding to the joint member 20, and the filling member of any one of the mortar grouting or epoxy resin between the PC panel 10 and the pillar 60. Using to form the filling unit 50.

5 is an exploded perspective view of a joint member and a support bracket in a state welded to a shear reinforcement as an embodiment of the present invention, and shows an extract of the joint member 20 and the support bracket 30 which are main parts of the present invention. In addition, Figure 5 shows an excerpt of the welding state of the shear reinforcement and the joint member in the PC panel.

The coupling of the connecting rod 22 and the engaging piece 23 is a bolted coupling method to form a screw thread at the end of the connecting rod. Combined with nuts. At this time, when forming the screw thread at the end of the connecting rod is processed to form a step inwardly, if the locking piece is configured not to move to the inside of the screw thread is formed, the locking piece is fixed by tightening the end of the connecting rod with a nut after inserting the locking piece without inserting the retaining ring.

In another embodiment of the present invention, when the thread is formed on the entire length of the outer surface of the connecting rod of the joint member, the nut is first inserted into the end of the connecting rod, and then the engaging piece is engaged and the nut is coupled to the distal end. can do.

After the hook piece of the present invention is connected to the support bracket after the grout is hardened by the mortar serves to more firmly fix the PC panel and the connecting rod.

"형으로 형성된 상태를 도시한 것으로서 본 발명에 있어서 반홈(31) 대신에 다른 실시 예로 실시되는 요철부의 형태는 "

"형, "

"형, "

"형 중 어느 하나의 형상으로 형성할 수 있다.Figure 6 is an example of the uneven portion formed in the half groove dash on the front of the support bracket is installed in the pillar as another embodiment of the present invention, formed in place of the half groove 31 in the front of the support bracket to be connected to the joint connecting member of the present invention Becomes uneven

"The form of the uneven portion is shown in the form of the embodiment is carried out in another embodiment instead of the half groove 31 in the present invention"

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It can form in the shape of any one of ".

"형, "

"형, "

"형, "

"형 중 어느 하나의 형상으로 형성하여 설치하는 것은 PC패널을 기둥에 설치시 설치조건에 따라서 반드시 정위치에 설치되지 않더라도 연결봉이 받침 브라켓의 요철부 중 어느 한 위치에 걸쳐져 고정될 수 있도록 한 것이다. In the present invention, the concave-convex portion formed in place of the semi-groove on the front of the support bracket is "

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Forming and installing the shape of any one of the "types" allows the connecting rod to be fixed over any one of the uneven parts of the support bracket even if the PC panel is not necessarily installed in the proper position depending on the installation conditions. .

In addition, Fig. 7 is installed on a plurality of pillars located inside the building with the PC panel 10 on the pillar, but the installation direction is less than the reference value 1 of the earthquake-proof test standard even if installed on either side of the pillar or the slope is suitable installation structure Judging.

As described above, the PC panel of the present invention may be manufactured and installed in various forms depending on the installation place.

In the PC panel method of the present invention as described above, the PC panel 10 is connected to the pillar by the method of connecting the joint member 20 and the bracket 30 to the PC panel 10 prepared in advance according to the shape of the installation place. Firstly, due to the ease of work on construction, the air shortens and the maximum work efficiency is achieved with a small number of people. Second, even if the building is aging due to the improvement of bearing capacity for horizontal tension and vertical load, it has durability and seismic effect. Third, while the remodeling cost is reduced compared to the new building, the durability has the same durability as the new building, and fourth, there is an advantage to secure the space of the living environment and the convenience of living lines.

While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the spirit of the invention claimed in the claims Various modifications can be made by those skilled in the art, and those modifications are within the scope of the present invention.

1 is a perspective view showing a connection state of the joint member and the support bracket for connecting the PC panel to the column according to the present invention.

Figure 2 is a cross-sectional view showing the position of the connecting rod in the state connected to the column using a joint member and a bracket when the length of the PC panel according to the present invention.

Figure 3 is a cross-sectional view showing the position of the connecting rod in the state connected to the column using a joint member and a bracket when the length of the PC panel according to the present invention is long

Figure 4 is a longitudinal cross-sectional view for showing the side of the PC panel of the present invention connected to the column using the joint member and the bracket.

Figure 5 is an exploded perspective view of the joint member and the support bracket in a state welded to the shear reinforcement as an embodiment of the present invention.

Figure 6 is an illustration of an uneven portion formed in the half groove dash on the front of the support bracket is installed in the pillar as another embodiment of the present invention.

Figure 7 is an exemplary view showing a state in which the PC panel is installed on the inner pillar of the building as an embodiment of the present invention.

Description of the Related Art [0002]

10: PC panel 12: shear reinforcement

20: joint member 22: connecting rod

23: Jam 30: Brackets

31: Insertion groove 32: Uneven portion

33: Bolt ball 34: Fixed bolt

35 :: Anchor fixing member

50: filling part 60: pillar

70: see

Claims (5)

delete A support bracket 30 formed with a bolt hole 33 into which a fixing bolt 34 is fitted at one side so as to be installed on an existing building pillar, and two half grooves 31 formed at one front; The support bracket 30 is installed on a plurality of pillars, and the joint member 20 installed on one side of the PC panel 10 is connected to span the support bracket 30, and the PC panel 10 and the pillar 60 are connected to each other. The PC panel 10 and the pillar 60 are formed by filling the filling part 50 formed by filling any one of the mortar grouting and the epoxy resin so that the joint member 20 and the support bracket 30 located in the space between the parts are buried. In the remodeling precast panel connection structure Shear reinforcement 12 is embedded in the concrete embedded inside the welded joint member 20 to one end of the shear reinforcement 12, the shear reinforcement 12 is embedded and the joint member 20 is welded on one side is exposed PC panel 10 is formed by pouring concrete to form; The support bracket 30 to which the joint member 20 of the PC panel 10 extends has a longitudinal cross section ".

"On the front surface of which the connecting rod 22 of the joint member 20

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"Remodeling precast panel connection structure, characterized in that the concave-convex portion 32 formed of any one of the shape is connected to connect the PC panel 10 and the pillar 60. delete delete delete

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