KR20180085851A - Seismic retrofit PC wall panel for RC frame, Seismic retrofit structure of RC frame using PC wall panel and construction method thereof - Google Patents

Abstract

Disclosed are a seismic retrofit PC wall panel for an RC frame, a seismic retrofit structure of an RC frame using the PC wall panel, and a construction method thereof. A puzzle-type PC wall panel for reinforcing seismic retrofit of the RC frame having RC column and beam includes: a plurality of small PC blocks disposed close to each other, with a space being interposed therebetween; an anchor member for fixing the PC blocks to the RC frame; and a concrete finishing member placed in the space between the PC blocks and a space between the PC block and the RC frame. The PC wall panel can be easily connected to an existing RC frame, and can effectively transmit stress to maximize seismic performance of the RC frame.

Description

{Seismic Retrofit PC Wall Panel for RC Frame, Seismic Retrofit Structure of RC Frame using PC Wall Panel and Construction Method Using Seismic Retrofit PC Wall Panel for Seismic Retrofit of Reinforced Concrete Frame }

The present invention relates to a reinforced concrete frame seismic reinforcement structure using a PC wall panel, a PC wall panel for seismic reinforcement of a reinforced concrete frame, and a construction method thereof.

Buildings built prior to 1988 when seismic design was introduced, or existing low - rise buildings without seismic design provisions, require seismic strengthening. Especially, as the frequency and progress of earthquakes in recent years have increased, it is urgent to strengthen the earthquake resistance of public buildings used by many people such as school buildings.

Conventionally, as shown in FIG. 1, a reinforcing method for reinforcing a reinforced concrete structure with a reinforcing material such as a steel plate has been developed. However, since the joint between the reinforcement and the reinforced concrete structure is fragile, the seismic performance is lowered, and there is a problem that the usability is lowered due to the interference between the reinforcement and the window due to the lack of openness (Patent Laid-Open No. 10-2012-0042237).

Accordingly, the present applicant has proposed a remodeling earthquake-proof reinforcement joint structure utilizing a PC member having a sufficient open area using the PC member shown in FIG. 2 and having an excellent seismic strengthening capability of a reinforced concrete structure, and a remodeling construction method (Registered Patent No. 10-1346814).

The PC member is provided with a steel panel member on the side of the PC member for engagement with the column or beam. The steel panel member is coupled to the column or beam through the anchor member. However, since the PC member is indirectly coupled through the steel panel member rather than being directly coupled to the column or the beam, there is a problem that the seismic performance is deteriorated when the steel panel member is deformed or damaged. In addition, since the steel panel member protrudes to the outside of the PC member, it is inefficient in terms of the transportation and loading efficiency of the PC member, and the steel panel member, which is a steel member, is exposed to the outside, .

Korean Patent Laid-Open Publication No. 10-2012-0042237 (2012.05.03, Method for improving seismic performance of a conventional wall using a steel plate member of a script type) Korean Registered Patent No. 10-1346814 (2014.01.03, Remodeling earthquake-proof reinforcement joining structure utilizing PC member for posterior reinforced concrete beam-column structure and method of building remodeling using it)

Embodiments of the present invention can be applied to a PC wall panel and a PC wall panel for seismic reinforcing of a reinforced concrete frame capable of maximizing the seismic performance of existing reinforced concrete frames due to easy coupling with existing reinforced concrete frames and efficient stress transmission Reinforced concrete frame anti-seismic reinforcement structure and a construction method thereof.

According to an aspect of the present invention, there is provided a puzzle-type PC wall panel for reinforcing a reinforced concrete frame composed of a reinforced concrete column and a beam, comprising: a plurality of small PC blocks disposed adjacent to each other with a space therebetween; An anchor member for fixing the small PC block to the reinforced concrete frame; And a concrete finishing material placed between the plurality of small PC blocks and a space between the plurality of small PC blocks and the reinforced concrete frame.

An anchor fixing groove is formed on the surface of the small-sized PC block so as to fix the anchor member inward, and the anchor fixing groove may be provided with a mesh network.

The outer end of the small PC block may be formed with projections and depressions embedded in the concrete finishing material.

According to another aspect of the present invention, there is provided a reinforced concrete frame comprising a reinforced concrete column and a beam; A wall installed in the open space of the reinforced concrete frame; An adhesive member applied to the surface of the wall; A PC wall panel attached to a surface of the wall; An anchor member for fixing the PC wall panel to the reinforced concrete frame; And a concrete finishing material placed in a space between the PC wall panel and the reinforced concrete frame. The reinforced concrete frame seismic reinforcing structure using the PC wall panel can be provided.

According to another aspect of the present invention, there is provided a reinforced concrete frame comprising a reinforced concrete column and a beam; A PC wall panel installed in an open space of the reinforced concrete frame; An anchor member for fixing the PC wall panel to the reinforced concrete frame; And a concrete finishing material placed in a space between the PC wall panel and the reinforced concrete frame, wherein the PC wall panel is formed by assembling a plurality of small PC blocks. A reinforcing structure can be provided.

The PC wall panel may be formed by assembling a plurality of small PC blocks.

The PC wall panel may be formed in a single plate shape corresponding to the shape of the wall.

The thickness of the PC wall panel may be 90 mm to 110 mm.

The anchor member may be fixed to the small PC block in advance so as to protrude outward from the small PC block.

Wherein an anchor fixing groove is formed on the surface of the small PC block so as to fix the anchor member, and the anchor fixing groove is provided with a mesh net, and the anchor member is inserted into the anchor fixing groove And may be fixed to the mesh network.

The anchor member may be embedded by the concrete finishing material after being disposed in a space between the small PC block and the small PC block.

The concrete finishing material may be laid in a space between the plurality of small PC blocks and the outer end of the small PC block may be formed so that concave and convex portions to be embedded in the concrete finishing material are protruded.

According to another aspect of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure using a puzzle-type or single-type PC wall panel, the method comprising: drilling anchor holes in a reinforced concrete frame; Inserting a surface of a wall provided in an open space of the reinforced concrete frame; Applying an adhesive member to the surface of the wall surface having been subjected to the surface treatment; Attaching the PC wall panel to a surface of the wall; And placing a concrete finishing material in a vacant space of the PC wall panel and a vacant space between the PC wall panel and the reinforced concrete frame. Can be provided.

According to another aspect of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel, the method comprising: removing a wall provided in a reinforced concrete frame to form an open space; Drilling anchor holes in the reinforced concrete frame; Assembling a plurality of small PC blocks to construct a puzzle type PC wall panel; And placing the concrete finishing material in a vacant space between the plurality of small PC blocks and a vacant space between the PC wall panel and the reinforced concrete frame. Can be provided.

According to the embodiments of the present invention, it is possible to assure the flexibility of construction according to the situation of the construction site by implementing the method of assembling the PC wall panel as puzzles by configuring the small size PC blocks of various sizes and shapes, The cost can be reduced compared with the existing method.

According to the embodiments of the present invention, since there is no protruding portion outside the PC wall panel, the transportation and loading efficiency can be improved.

According to the embodiments of the present invention, there is no part of the steel member protruding outside the PC wall panel, so that there is no need to perform separate treatment for refractory and corrosion prevention.

1 is a view showing an example of a conventional seismic retrofitting method.
2 is a view showing an example of a PC member that can be used in a conventional seismic retrofitting method.
3 is a view showing an example of construction of a puzzle-type PC wall panel using a small-size PC block according to an embodiment of the present invention.
4 is a block diagram of a small PC block according to an embodiment of the present invention.
5 is a block diagram of a small PC block according to another embodiment of the present invention.
6 is a block diagram of a compact PC block according to another embodiment of the present invention.
7 is a view showing various modifications of a puzzle-type PC wall panel constructed using a miniature PC block according to various embodiments of the present invention.
8 to 9 are views showing a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to an embodiment of the present invention.
10 is a view showing a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle type PC wall panel according to another embodiment of the present invention.
11 is an enlarged view of part A of the reinforced concrete frame seismic reinforcing structure shown in Fig.
12 to 13 are views showing a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to another embodiment of the present invention.
14 is a view schematically showing a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention.
15 is a view schematically showing a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to another embodiment of the present invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise. Also, throughout the specification, the term "on" means to be located above or below the object portion, and does not necessarily mean that the object is located on the upper side with respect to the gravitational direction.

Furthermore, the term " coupled " does not mean that only a physical contact is made between the respective components in the contact relation between the respective constituent elements, but the other components are interposed between the respective constituent elements, It should be used as a concept to cover until the components are in contact with each other.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a reinforced concrete frame seismic reinforcement structure and a construction method thereof using a PC wall panel and a PC wall panel for seismic reinforcement of a reinforced concrete frame according to the present invention will be described in detail with reference to the accompanying drawings, The same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted.

3 is a view showing an example of construction of a puzzle-type PC wall panel using a small-size PC block according to an embodiment of the present invention.

The puzzle type PC wall panel 40 according to the embodiment of the present invention is constructed such that the wall 20 or the wall 20 of the reinforced concrete frame 10 constituted by the reinforced concrete column 11 and the beam 13 is removed The present invention relates to a PC wall panel for an anti-resisting steel which is installed in an open space (15) where a plurality of various types of small PC blocks (42) can be assembled. The puzzle type PC wall panel 40 is simply attached to the existing wall 20 installed in the open space 15 of the reinforced concrete frame 10 or the existing wall 20 is removed from the reinforced concrete frame 10 Or in the form of a block stacking in an open space (15).

3, the puzzle-type PC wall panel 40 includes a plurality of small PC blocks 42 assembled adjacent to each other, an anchor member 50 for fixing them to the reinforced concrete frame 10, And a concrete finish 60 to fill the gap and enhance the resiliency.

Each of the small PC blocks 42 may be provided with an anchor fixing groove 44 for fixing the anchor member 50 or an anchor fixing hole. The small PC block 42 can be largely classified into three types according to the fixing method of the anchor member 50. The above three forms are shown in more detail in Figs.

Figure 4 is a block diagram of a miniature PC block 42 according to an embodiment of the present invention, Figure 5 is a block diagram of a miniature PC block 42 in accordance with another embodiment of the present invention, Fig. 5 is a view of a miniature PC block 42 according to another embodiment. Fig.

4, the anchor fixing hole may be a hole formed at one end of the small PC block 42, and the anchor member 50 may be fixed to the small PC block 42 by one end inserted and fixed in the anchor fixing hole . In this case, a method may be employed in which a binder is injected into the anchor fixing hole of the small PC block 42 and the anchor member 50 is fitted into the anchor fixing hole thus fixed. In addition, a method of integrating the anchor member 50 with the miniature PC block 42 in the process of manufacturing the miniature PC block 42 may be used.

As the binder, for example, non-shrinkable mortar may be used. In addition, the inner surface of the anchor fixing hole can be constructed in such a manner that the surface of the precast concrete is exposed. The anchor member 50 is inserted into the anchor fixing hole. After the insertion, a bonding agent such as an anchor injection solution or a grouting material is injected to increase the bonding force between the anchor member 50 and the small PC block 42.

5, an anchor fixing groove 44 may be formed on the surface of the small PC block 42 to fix the anchor member 50 inwardly. The anchor fixing groove 44 may be formed with a mesh network (45) may be provided. One or more of the anchor fixing grooves 44 may be provided on one side or the other side of the small-size PC block 42. The mesh net 45 may be provided in each of the anchor fixing grooves 44 in a lattice structure like a wire mesh. The anchor member 50 can be inserted into the anchor fixing groove 44 by cutting the mesh net 45 and the inserted anchor member 50 can be integrated with the cut mesh net 45 by welding. The anchor member 50 is inserted through the open end of the anchor fixing groove 44 without cutting the mesh net 45 and then inserted into the mesh net 45 It may be integrated by welding.

6, the miniature PC block 42 may be manufactured without a separate apparatus or structure for fixing to the anchor member 50. In this system, for example, as shown in Fig. 3, in a state in which the small-size PC blocks 42 are disposed adjacent to each other with a certain spacing space therebetween, the anchor member 50 is disposed in each inter- The compact PC blocks 42 and the anchor members 50 can be integrated into one by placing the concrete finishing material 60 in the space between them. At this time, each of the anchor members 50 may be previously fixed to the column 11 or the beam 13 of the reinforced concrete frame 10 before the concrete finishing material 60 is laid. That is, the concrete finishing material 60 is fixed to a small PC (not shown) in a state where one end of the one end is fixed to the anchor hole 19 of the reinforced concrete frame 10 so that the anchor member 50 is extended and protruded into the space between the small- The other end of the anchor member 50 can be embedded in the concrete finishing material 60 and fixed.

The concave and convex portions 48 embedded in the concrete finishing material 60 may protrude from the outside of the small PC block 42. The concave-convex portion 48 may be in the form of a tooth arranged to be shifted along the edge of the small-sized PC block 42, for example. The concave and convex portions 48 are formed along the edge of the small PC block 42 so that the concrete finishing material 60 is placed in the space between adjacent small PC blocks 42 in a state where the adjacent small PC blocks 42 are disposed facing each other, It is possible to maximize the surface area of the small PC block 42 that can be contacted by the concrete finishing material 60 and to greatly improve the bonding force between the concrete finishing material 60 and the small PC block 42 have.

The thickness of the small-size PC block 42 may be about 90 mm to 110 mm. It is possible to reduce the weight of the conventional small-sized PC block 42 compared with the conventional size of the brick (width width of small bricks 90 mm and width width of large bricks 110 mm) By interlocking it, the workability in the field can be improved.

Figure 7 illustrates various variations of a puzzle-like PC wall panel 40 constructed using a miniature PC block 42 in accordance with various embodiments of the present invention.

7 (a), 7 (d) and 7 (g) are views showing a modification of the puzzle-type PC wall panel 40 constructed by combining the small-size PC blocks 42 according to the embodiment of FIG. (b), (e) and (h) are variations of the puzzle-type PC wall panel 40 constructed by combining the miniature PC blocks 42 according to the embodiment of FIG. 5, f), (i) is a modification of the puzzle-type PC wall panel 40 constructed by combining the miniature PC blocks 42 according to the embodiment of FIG.

As shown in FIG. 7, the small PC blocks 42 made of precast concrete (PC) can be manufactured in accordance with the size or shape of the open space 15 in the existing reinforced concrete frame 10 to be installed, There is an advantage in that it is possible to adhere to the existing wall 20 of the frame 10 and appropriately combine various types of small PC blocks 42 according to the size and shape of the wall 20 during construction.

If the PC wall panel is manufactured in a single size according to the size of the wall 20 or the size of the open space, it can be optimized for a structure to be subjected to seismic retrofitting because it is customized. However, It is not easy to safely transport to the construction site, to use the crane at the construction site to concentrate the PC wall panel to the desired position of the building,

According to embodiments of the present invention, these problems can be solved at once by implementing a method of constructing a PC wall panel as a puzzle by constructing small PC blocks 42 of various sizes and shapes. In addition, since various small PC blocks produced by the PC wall panels for anti-seismic reinforcement are assembled like puzzles, it is not necessary to order PC wall panels every time to reinforce one wall 20, It is possible to secure the flexibility of the construction according to the situation of.

Since the small PC block 42 is a small and lightweight body, the existing wall 20 of the reinforced concrete frame 10 (the small PC block 42) For example, prefabricated walls such as masonry walls, concrete block walls, and the like). This method (low cost and high efficiency) can reduce the construction air and it does not cost much, so there is an advantage that the cost can be drastically reduced as compared with the existing method.

The puzzle type PC wall panel 40 constituted by the small PC block 42 is attached to the existing wall 20 of the old reinforced concrete frame 10 or the existing wall 20 is removed from the open space 15 The puzzle-type PC wall panel 40 made of concrete can be integrated with the existing concrete structure by integrating the hollow space with the concrete finishing material 60 and integrating them. This method makes it possible to reinforce the existing aged reinforced concrete frame (10) structure such as a school building against more buildings in a short time at a low cost.

8 and 9 are views showing a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to an embodiment of the present invention.

8 and 9, a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to an embodiment of the present invention includes a reinforced concrete frame (frame) 11 composed of a reinforced concrete column 11 and a beam 13 10); A wall 20 installed in the open space 15 of the reinforced concrete frame 10; An adhesive member (30) applied to the surface of the wall (20); A PC wall panel (puzzle type, single type) attached to the surface of the wall 20; Anchor member 50 (a horizontal hole anchor, a horizontal hole anchor) for fixing the PC wall panel to the reinforced concrete frame 10; And a concrete finishing material 60 laid in a space between the PC wall panel and the reinforced concrete frame 10.

In the reinforced concrete frame seismic reinforcing structure using the puzzle type PC wall panel according to the present embodiment, for the sake of convenience, the puzzle type PC wall panel 40 according to the embodiment shown in Fig. A concrete method of reinforcing an existing reinforced concrete frame structure will be described as an example.

Although not specifically shown, the puzzle type PC wall panel 40 according to the embodiment shown in FIG. 4, as well as the puzzle type PC wall panel 40 according to the embodiment shown in FIGS. 5 and 6, It can be understood that the existing reinforced concrete frame 10 can be seismically reinforced at a low cost and high efficiency through the puzzle type PC wall panel 40 according to the various deformable embodiments.

The reinforced concrete frame 10 may be basically composed of a reinforced concrete column 11 and a reinforced concrete beam 13. A reinforced concrete column 11 and a reinforced concrete beam 13 are formed inside the reinforced concrete frame 10, An open space 15 may be formed.

The wall 20 may be a conventional aged wall 20 installed in the open space 15 of the reinforced concrete frame 10. For example, the wall 20 may include a masonry wall made of bricks, a concrete block wall made of concrete blocks, and the like. The wall 20 is mainly a non-bearing wall, and a part of the wall 20 may be formed of a bearing wall. However, even if the bearing wall is strong, the resisting force of the strong seismic waves is weak, .

The puzzle-type PC wall panel 40 is installed in the open space 15 of the reinforced concrete frame 10 to reinforce the exertion force of the reinforced concrete frame 10. Referring to the drawings, the puzzle-type PC wall panel 40 according to the present embodiment may have an L-shape as a whole except for a region where a window is to be installed.

As described above, the puzzle-type PC wall panel 40 can be constructed by assembling a plurality of various types of small-sized PC blocks 42. The shape and coupling relationship of the small-sized PC blocks 42 can be previously described A detailed description thereof will be omitted here.

The reinforced concrete frame 10 may be provided with an anchor holes 19 for fixing the anchor member 50. The anchor holes 19 may be formed by perforating the reinforced concrete frame 10 using a drill hole.

The anchor member 50 may be fixed to the anchor hole 19 formed in the reinforced concrete frame 10. The puzzle type PC wall panel 40 can be permanently fixed to the reinforced concrete frame 10 by fixing the anchor member 50 to the anchor hole 19. [

As described above, the anchor member 50 and the miniature PC block 42 can be combined in various ways. For example, the anchor member 50 may be integrally formed (see the screening method, see Fig. 4) when the miniature PC block 42 is manufactured, and the anchor member 50 may be fixed The anchor member 50 and the small PC block 45 may be formed in such a manner that they are welded to the mesh net 45 after being inserted into the anchor fixing grooves 44 having a hollow shape for the sake of convenience The concrete finishing material 60 is fixed to the anchor holes 19 of the reinforced concrete frame 10 in such a manner that the anchor members 50 are separately assembled and assembled in the field, 42, the other end of the anchor member 50 can be embedded in the concrete finishing material 60 (see FIG. 6).

The concrete finishing material 60 may be laid to fill an empty space between the miniature PC blocks 42 as well as the void space between the puzzle type PC wall panel 40 and the reinforced concrete frame 10. [ The concrete finishing material 60 can integrate the reinforced concrete frame 10 with the puzzle-type PC wall panel 40.

According to the present embodiment, the puzzle type PC wall panel 40 can be installed in such a manner that it is attached to the surface of the existing wall 20 installed in the open space 15 of the reinforced concrete frame 10. 7, each of the small PC blocks 42 is attached to the outer surface of the existing wall 20, and at the same time, the anchor member 50 is inserted into the anchor hole 19 to be attached to the reinforced concrete frame 10 .

As described above, the small PC block 42 can be made of a lightweight concrete material, which is considerably light in weight. Therefore, it is not necessary to completely remove the existing wall 20 in order to reinforce the reinforced concrete frame 10, and it is possible to prevent the existing wall 20 from remaining on the surface (inside and outside) of the wall 20, It is possible to increase the assembly and the workability of the small PC block 42 by providing a strong adhesive force.

As the adhesive member 30, for example, an epoxy-based adhesive may be used. However, the present invention is not limited thereto.

9, in the state where the small PC block 42 is assembled like a puzzle in accordance with the shape of the existing wall 20 installed in the open space of the reinforced concrete frame 10, And the void space between the puzzle type PC wall panel 40 and the reinforced concrete frame 10 can be filled with the concrete finishing material 60. When the concrete finishing material 60 is laid, the pouring operation can be performed while the empty spaces are isolated from the outside by using a form.

10 is a view illustrating a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to another embodiment of the present invention, and Fig. 11 is a view showing a part A of the reinforced concrete frame seismic reinforcing structure shown in Fig. Fig.

In the case of the present embodiment, instead of assembling a plurality of small PC blocks 42 in a PC wall panel as in the above-described embodiment, a conventional single PC wall panel 40 ' To strengthen the seismic resistance.

That is, unlike the above-described embodiments, the PC wall panel according to the present embodiment is of a single plate type. In this case, the single-plate type PC wall panel can be installed in such a manner that it is attached to the existing wall 20 of the existing reinforced concrete frame 10. To this end, a single-plate PC wall panel can be manufactured in the factory to match the shape of the existing wall 20 to which it is to be attached.

The thickness of the PC wall panel according to the present embodiment is about 90 mm to 110 mm. By making the thickness of the PC wall panel to match the standard size of the brick (width of small brick is 90mm, width of large brick is 110mm), it is possible to make the weight of the PC wall panel lightweight, The workability in the field can be improved by interlocking the dimensions of the wall 20 with the dimensions of the existing wall 20.

Also in this embodiment, as in the case of the above-described embodiments, it is not necessary to completely remove the existing wall 20 in order to reinforce the reinforced concrete frame 10, It is possible to reinforce more buildings with low cost as compared with the seismic retrofitting method using the conventional PC panel by providing the adhesive member 30 on the surface (inner side and outer side) of the building 20 to provide a strong adhesive force.

As the adhesive member 30, for example, an epoxy-based adhesive may be used. However, the present invention is not limited thereto.

Referring to FIG. 11, the single PC wall panel 40 'according to the present embodiment can be fixed to the reinforced concrete frame 10 using the same method as the anchor member 50 shown in FIG.

The single PC wall panel 40 'manufactured in accordance with the shape of the existing wall 20 installed in the open space of the reinforced concrete frame 10 is attached to the surface of the existing wall 20 on which the adhesive member 30 is installed 11, the mesh net 45 of the anchor fixing groove 44 is cut to insert the anchor member 50, and the anchor member 50 is inserted and welded to the mesh net 45 The single PC wall panel 40 'is inserted into the reinforced concrete frame 10 by inserting and fixing the remaining part of the anchor member 50 into the anchor hole 19 of the reinforced concrete frame 10 after the anchor member 50 is integrated, (10). Of course, a method of inserting the anchor member 50 through the opened one end of the anchor fixing groove 44 and welding may be used without cutting the mesh net 45.

At this time, the empty space between the single-type PC wall panel 40 'and the reinforced concrete frame 10 can be filled with the concrete finishing material 60 as in the above-described embodiment. When the concrete finishing material 60 is laid, the pouring operation can be performed while the empty spaces are isolated from the outside by using a form.

Although the single PC wall panel 40 'is fixed to the reinforced concrete frame 10 by using the fixing method of the anchor member 50 shown in FIG. 5 for the sake of convenience in the present embodiment, The single PC wall panel 40 'is connected to the existing reinforced concrete frame 40' through the fixing method of the anchor member 50 according to the embodiment shown in FIGS. 4 and 6, and the fixing method of the PC wall panel according to various embodiments, It can be understood that it can be fixed to the base 10.

12 to 13 are views showing a construction process of a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to another embodiment of the present invention.

12 and 13, a reinforced concrete frame seismic reinforcing structure using a puzzle-type PC wall panel according to another embodiment of the present invention includes a reinforced concrete frame 11 composed of a reinforced concrete column 11 and a beam 13, (10); A PC wall panel (puzzle type) installed in the open space 15 of the reinforced concrete frame 10 and assembling a plurality of small PC blocks 42 like a puzzle; Anchor member (50) for fixing the PC wall panel to the reinforced concrete frame (10); And a concrete finishing material 60 laid in a space between the PC wall panel and the reinforced concrete frame 10.

In this embodiment, instead of attaching the puzzle-type PC wall panel 40 to the existing wall 20 of the reinforced concrete frame 10 as in the embodiment shown in FIGS. 8 to 9, 20 is formed by removing the puzzle-type PC wall panel 40 on the open space 15, and filling the empty space with the concrete finishing material 60 to make the seismic structure.

Therefore, in the reinforced concrete frame seismic reinforcing structure using the puzzle-type PC wall panel 40 according to the present embodiment, in order to reinforce the reinforced concrete frame 10, the existing wall 20 is entirely or at least partially removed Work is required. Such a method can be applied to the case where the existing wall 20 is too aged to remain, which threatens the safety of the building or its users.

As described above, the puzzle-type PC wall panel 40 according to the present embodiment can be constructed by assembling a plurality of various types of miniature PC blocks 42, Since the relationship and the like have been described in detail above, a detailed description thereof will be omitted.

As described above, the reinforced concrete frame seismic reinforcing structure using the PC wall panel according to the various embodiments of the present invention can be applied to a structure in which the PC wall panel is constructed as a puzzle type or a single type and attached to the existing wall 20, A separate joining member protruding outside the PC wall panel is unnecessary for fixing to the existing reinforced concrete frame 10 and an anchor member 50 is used to connect the PC wall panel to the reinforcing concrete frame 10. [ The seismic performance of the existing structure reinforced by the masonry structure such as the brick can be greatly improved by directly bonding to the concrete frame 10.

14 is a view schematically showing a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention.

Referring to FIG. 14, a method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention includes the steps of: A method of constructing a concrete frame anti-seismic reinforcing structure, comprising the steps of: (a) puncturing an anchor hole (19) in a column (11) and a beam (13) of a reinforced concrete frame (10); (S20) finishing the surface of the wall 20 installed in the open space 15 of the reinforced concrete frame 10; (S30) of applying the adhesive member 30 to the surface of the wall body 20 that has been subjected to the surface treatment; Attaching a puzzle-type or single-piece PC wall panel 40 'to the surface of the wall 20 (S40); (Step S50) of placing the concrete finishing material 60 in an empty space of the PC wall panel and in an empty space between the PC wall panel and the reinforced concrete frame 10.

In order to explain the construction method of the reinforced concrete frame seismic retrofitting structure using the PC wall panel according to the present embodiment, Fig. 14 is a sectional view of the puzzle type PC wall panel 40 shown in Figs. 8 and 9 The reinforced concrete frame seismic reinforcement structure is illustrated as an example.

An anchor hole 19 for inserting the anchor member 50 can be inserted into the column 11 of the reinforced concrete frame 10 and the beam 13 at step S10. At this time, the window or the wall 20 installed in the reinforced concrete frame 10 need not be removed.

Although the PC wall panel is assembled or attached by perforating the anchor hole 19 on the outer surface of the wall 20 in this specification, the outer surface of the existing wall 20 and the wall surface of the reinforced concrete frame 10 The PC wall panel may be installed inside the existing wall 20 if there is not enough space for the construction of the PC wall panel between the outside surfaces. In this case, the anchor hole 19 can be installed inside the existing wall 20.

Next, the surface of the wall 20 installed in the open space 15 of the reinforced concrete frame 10 can be plastered using a surface treatment member such as cement mortar (S20).

Generally, the wall 20 installed in the reinforced concrete frame 10 is rarely exposed to the outside. This is because the surface of the wall 20 is concealed by the finishing material or is located inside the building, so that a separate surface finishing is often omitted. The PC wall panel to be adhered to the surface of the wall 20 can be stably attached through the adhesive member 30 in a subsequent step since the surface of the wall 20 is rough You need to trim the surface.

Although the method of finishing the surface of the wall body 20 using the cement mortar is exemplified in this embodiment, it is needless to say that various types of surface treatment members can be used for the surface treatment of the wall body 20.

Next, the adhesive member 30 can be applied to the surface of the wall 20 on which the surface treatment is completed (S30). The application work of the adhesive member 30 is preferably carried out after the surface treatment member such as the cement mortar is completely solidified. As the adhesive member 30, for example, an epoxy-based adhesive may be used.

Next, a puzzle-type or single-piece PC wall panel 40 'may be attached to the surface of the wall 20 to form a PC wall panel (S40).

The puzzle-type PC wall panel 40 may be applied in the form of a puzzle-type PC wall panel 40 described in FIGS. 8 and 9, and in the form of a single-type PC wall panel 40 ' The single-type PC wall panel 40 'described in FIG. 11 can be applied. Here, the construction of the puzzle-type PC wall panel 40 shown in Figs. 8 and 9 will be described.

In this step S40, the small PC block 42 is attached to the surface of the wall 20, and at the same time as the process of constructing the PC wall panel, the small PC block 42 of the PC wall panel is fixed by using the anchor member 50, An operation of fixing each one to the reinforced concrete frame 10 can be performed. Of course, when the anchor member 50 is provided to the site in a state in which the anchor member 50 is pre-coupled to each of the small-size PC blocks 42 (see FIG. 4), the anchor member 50 is installed in the reinforcing concrete frame 10 The fixing operation of the PC wall panel through the anchor member 50 may be completed by inserting the inserted anchor hole 19 and injecting the bonding agent.

5 and 6), the anchor member 50 is inserted into the anchor hole 19 of the reinforced concrete frame 10 when the anchor member 50 is later installed on the small PC block 42 And fixing the anchor member 50 to the miniature PC block 42 can be performed simultaneously. 5, when the anchor member 50 is inserted and fixed in the anchor fixing groove 44 of the small PC block 42, the anchor member 50 is inserted into the anchor hole 19 The anchor member 50 may be inserted into the anchor fixing groove 44 and welded to the mesh net 45 at the same time. As another example, when the anchor member 50 is buried by a concrete finishing material 60 to be described later in an empty space between the small PC blocks 42, as in the case of Fig. 6, the anchor member 50 The anchor member 50 can be inserted into the anchor hole 19 so as to extend into the empty space between the small PC blocks 42 when the reinforced concrete frame 10 is inserted into the anchor holes 19 .

The method of attaching the puzzle type PC wall panel 40 composed of a plurality of small PC blocks 42 or the single PC wall panel 40 'composed of one single PC panel to the surface of the wall 20 In use, the PC wall panel can be mounted on the wall 20, and other operations can be carried out simultaneously, so that more workload can be handled with less manpower.

On the other hand, in FIG. 14, a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel by applying the puzzle type PC wall panel 40 shown in FIGS. 8 and 9 has been described. However, It is not. This is for the sake of convenience of explanation only, and it is not limited to the various puzzle-type PC wall panels 40 according to the above-described embodiment, but also to the existing reinforced concrete frame (not shown) through the single PC wall panel 40 ' 10) can be seismically reinforced at low cost and high efficiency.

Next, the empty space of the PC wall panel and the empty space between the PC wall panel and the reinforced concrete frame 10 can be filled with the concrete finishing material 60 (S60).

According to the filling of the concrete finishing material 60, the PC wall panel and the reinforced concrete frame 10 can be integrally combined. By filling the empty space by placing the concrete finishing material 60 in this way, it is possible to fill the void space between the PC wall panel and the reinforced concrete frame 10 and strengthen the resisting force of the existing building.

After placing the concrete finishing material 60 between the PC wall panel and the reinforced concrete frame 10, a window can be installed in the opening formed by the PC wall panel and the reinforced concrete frame 10 as shown in FIG. In addition, by attaching a wall tile to the outside of the PC wall panel and the concrete finishing material 60, the finishing work of the reinforced concrete frame seismic reinforcing structure using the PC wall panel can be completed.

The steps of the process described above may be reversed according to the conditions of the construction site, and this is also included within the scope of the present invention.

As described above, in the method of constructing the reinforced concrete frame seismic reinforcing structure using the PC wall panel, since the PC wall panel is a relatively light and lightweight material, the existing wall 20 of the reinforced concrete frame 10 (for example, Block wall or the like) installed on the inside or outside of the building. This method (low cost and high efficiency) can reduce the construction air and it does not cost much, so there is an advantage that the cost can be drastically reduced as compared with the existing method. Further, when the puzzle-type PC wall panel 40 is employed, each of the small-sized PC blocks 42 may be carried by the human body directly. When this method is applied to reinforce the old reinforced concrete frame structure such as a school building, there is an advantage that it can reinforce more aged buildings with less cost.

15 is a view schematically showing a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to another embodiment of the present invention.

15, a method of constructing a reinforced concrete frame seismic retrofitting structure using a PC wall panel according to another embodiment of the present invention includes a reinforced concrete frame seismic reinforcing structure using a puzzle type PC wall panel according to the above- As a construction method, a step S110 of removing the wall 20 provided in the reinforced concrete frame 10 to form an open space 15; A step (S120) of drilling anchor holes (19) in the reinforced concrete frame (10); Assembling a plurality of small PC blocks 42 to construct a puzzle-type PC wall panel (S130); A step S140 of inserting the concrete finishing material 60 into the empty space between the plurality of small PC blocks 42 and the empty space between the PC wall panel and the reinforced concrete frame 10 may be included.

15 and 16, a puzzle type PC wall panel 40 shown in Figs. 8 and 9 is used for explaining a construction method of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present embodiment. The reinforced concrete frame seismic reinforcement structure is illustrated as an example.

In the following description of the present embodiment, the overlapping portion of the reinforcing concrete frame seismic reinforcement structure using the PC wall panel according to the above-described embodiment is the same as or equivalent to the construction method, (In the case of this embodiment, a method of removing the existing wall 20 and stacking the small PC block 42) will be mainly described.

First, the wall 20 installed in the reinforced concrete frame 10 may be removed to form the open space 15 (S110). At this time, the opening is formed in the existing wall 20, and when the window or the door is provided in the opening, the window or the door can be removed as well.

Next, an anchor hole 19 for inserting the anchor member 50 into the column 11 of the reinforced concrete frame 10 and the beam 13 may be perforated (S120).

Next, a plurality of small PC blocks 42 may be assembled to construct a puzzle-type PC wall panel (S130). The detailed configuration of the puzzle-type PC wall panel 40 and the assembly method thereof are described in more detail in the embodiments of the puzzle-type PC wall panel 40 described above, so that the description thereof will be omitted here.

Next, concrete pavement 60 may be placed in the empty space between the PC wall panels and the reinforced concrete frame 10 to fill the void space between the plurality of small PC blocks 42 (S140). By filling the empty space by placing the concrete finishing material 60 in this manner, the void space between the puzzle type PC wall panel 40 and the reinforced concrete frame 10 can be filled and the anti-vibration force of the existing building can be strengthened.

After the concrete finishing material 60 is laid between the puzzle-type PC wall panel 40 and the reinforced concrete frame 10, as shown in FIG. 15, Can be installed. In addition, by attaching a wall tile to the outside of the PC wall panel and the concrete finishing material 60, the finishing work of the reinforced concrete frame seismic reinforcing structure using the PC wall panel can be completed.

The steps of the process described above may be reversed according to the conditions of the construction site, and this is also included within the scope of the present invention.

As described above, in the construction method of the reinforced concrete frame seismic retrofitting structure using the puzzle type PC wall panel, each of the small PC blocks 42 constituting the puzzle type PC wall panel 40 can be carried Since the PC wall panel is a relatively lightweight material, it can be attached to the inner and outer surfaces of the existing wall 20 of the reinforced concrete frame 10. This method (low cost and high efficiency) can reduce the construction air and it does not cost much, so there is an advantage that the cost can be drastically reduced as compared with the existing method. When this method is applied to reinforce the old reinforced concrete frame structure such as a school building, there is an advantage that it can reinforce more aged buildings with less cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Reinforced Concrete Frame 11: Column
13: beam 15: open space
19: anchor hole 20: wall
30: Adhesive member 40: Puzzle type PC wall panel
40 ': Single PC wall panel 42: Small PC block
44: Anchor fixing groove 45: Mesh mesh
48: concave / convex portion 50: anchor member
60: Concrete Finish

Claims (14)

The present invention relates to a puzzle type PC wall panel for reinforcing a reinforced concrete frame composed of a reinforced concrete column and a beam,
A plurality of small PC blocks disposed adjacent to each other with a space therebetween;
An anchor member for fixing the small PC block to the reinforced concrete frame; And
And a concrete finishing material placed in a space between the plurality of small PC blocks and a space between the plurality of small PC blocks and the reinforced concrete frame.
The method according to claim 1,
Wherein an anchor fixing groove is formed on the surface of the small-sized PC block so as to fix the anchor member inwardly,
Wherein the anchor fixing groove is provided with a mesh network.
The method according to claim 1,
And the concave and convex portions embedded in the concrete finishing material are protruded from the outer end of the small PC block.
A reinforced concrete frame consisting of reinforced concrete columns and beams;
A wall installed in the open space of the reinforced concrete frame;
An adhesive member applied to the surface of the wall;
A PC wall panel attached to a surface of the wall;
An anchor member for fixing the PC wall panel to the reinforced concrete frame; And
And a concrete finishing material placed in a space between the PC wall panel and the reinforced concrete frame.
A reinforced concrete frame consisting of reinforced concrete columns and beams;
A PC wall panel installed in an open space of the reinforced concrete frame;
An anchor member for fixing the PC wall panel to the reinforced concrete frame; And
And a concrete finishing material placed in a space between the PC wall panel and the reinforced concrete frame,
Wherein the PC wall panel is formed by assembling a plurality of small PC blocks.
5. The method of claim 4,
Wherein the PC wall panel is formed by assembling a plurality of small PC blocks.
5. The method of claim 4,
Wherein the PC wall panel is manufactured in a single plate shape corresponding to the shape of the wall.
5. The method of claim 4,
Wherein the thickness of the PC wall panel is 90 mm to 110 mm.
The method according to claim 4 or 5,
Wherein the anchor member is fixed to the small PC block in advance so as to protrude outward from the small PC block.
The method according to claim 4 or 5,
Wherein an anchor fixing groove is formed on the surface of the small-sized PC block so as to fix the anchor member inwardly,
The anchor fixing groove is provided with a mesh net,
Wherein the anchor member is fixed to the mesh net while being inserted into the anchor fixing groove.
The method according to claim 4 or 5,
Wherein the anchor member is disposed in an empty space between the small PC block and the small PC block, and then is embedded by the concrete finishing material.
The method according to claim 4 or 5,
The concrete finishing material may be laid in a space between the plurality of small PC blocks,
And a concave / convex portion to be embedded in the concrete finishing material is protruded at an outer end of the compact PC block.
A method of constructing a reinforced concrete frame seismic reinforced structure using a puzzle or single type PC wall panel,
Drilling anchor holes in the reinforced concrete frame;
Inserting a surface of a wall provided in an open space of the reinforced concrete frame;
Applying an adhesive member to the surface of the wall surface having been subjected to the surface treatment;
Attaching the PC wall panel to a surface of the wall; And
Placing a concrete finishing material in an empty space of the PC wall panel and in an empty space between the PC wall panel and the reinforced concrete frame;
Wherein the reinforced concrete frame comprises a plurality of reinforced concrete frames.
A method of constructing a reinforced concrete frame seismic reinforced structure using a puzzle type PC wall panel,
Removing the wall provided in the reinforced concrete frame to form an open space;
Drilling anchor holes in the reinforced concrete frame;
Assembling a plurality of small PC blocks to construct a puzzle type PC wall panel; And
Placing a concrete finishing material in an empty space between the plurality of small PC blocks and an empty space between the PC wall panel and the reinforced concrete frame;
Wherein the reinforced concrete frame comprises a plurality of reinforced concrete frames.

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