KR101965754B1 - Seismic retrofit PC wall panel for RC frame and Construction method thereof - Google Patents

Abstract

A PC wall panel for seismic reinforcing of a reinforced concrete frame and a manufacturing method thereof are disclosed. According to an aspect of the present invention, there is provided a method of manufacturing a PC wall panel, the method comprising: providing a mold corresponding to a shape of the PC wall panel; Fixing a plurality of tubular members in the formwork corresponding to respective positions where the vertical joint hole, the horizontal joint hole and the inclined joint hole are to be formed in the PC wall panel; Placing the concrete in the mold so that the tubular member is embedded; Curing the concrete in the mold for a predetermined period of time; And withdrawing the tubular member from the concrete when the predetermined time is reached.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PC wall panel for seismic reinforcing of a reinforced concrete frame,

The present invention relates to a reinforced concrete frame seismic reinforcing PC wall which can naturally form an opening for a window or the like to maximize an open area while allowing easy connection with a conventional reinforced concrete frame and maximizing seismic performance with efficient stress transmission Panel and a manufacturing 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 provide a PC wall panel for seismic reinforcing of a reinforced concrete frame in which the above-described problems are eliminated and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a PC wall panel installed in an open space of a reinforced concrete frame composed of a reinforced concrete column and a beam to seismically reinforce the reinforced concrete frame, A horizontal portion which is closely contacted; A vertical part which is in close contact with a side surface of the open space of the reinforced concrete frame; And a righthand portion that is in close contact with a bottom surface and a side surface of the open space of the reinforced concrete frame and connects the horizontal portion and the vertical portion, wherein a plurality of vertical coupling holes for inserting an anchor member vertically penetrate through the horizontal portion A plurality of horizontal engagement holes for inserting the anchor members are formed in the vertical portion so as to penetrate in the horizontal direction, a plurality of inclined engagement holes for inserting the anchor members are formed radially through the right corner portions, Wherein the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole are formed in a shape that shapes the PC wall panel to fix the tubular member to the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole, respectively , And before the concrete is completely cured, the tubular member is poured into the mold Removal has a PC wall panel, characterized in that the form may be provided by.

And a plurality of connecting members protruding from the free ends of the horizontal portion and the vertical portion.

The end portions of the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole, which are in contact with at least one of the bottom surface and the side surface of the open space of the reinforced concrete frame, may be provided with blocking material.

According to another aspect of the present invention, there is provided a method of manufacturing a PC wall panel, the method comprising: providing a mold corresponding to a shape of the PC wall panel; Fixing a plurality of tubular members in the formwork corresponding to respective positions where the vertical joint hole, the horizontal joint hole and the inclined joint hole are to be formed in the PC wall panel; Placing the concrete in the mold so that the tubular member is embedded; Curing the concrete in the mold for a predetermined period of time; And withdrawing the tubular member from the concrete when the predetermined time is reached.

The manufacturing method of the PC wall panel may further include, when the concrete is completely cured, removing the mold from the concrete.

The mold includes: an L-shaped front plate member and a rear plate member disposed to be spaced apart from each other; And a plurality of side plate members for integrating the front and rear plate members between the front plate member and the rear plate member, wherein a plurality of tubular member draw-out holes are formed in the side plate member corresponding to positions where the tubular members are to be fixed .

In the step of drawing the tubular member, the tubular member may be pulled out through the tubular member draw-out hole provided in the mold.

According to the embodiments of the present invention, an anchor member is inserted into a vertical joining hole, a slant joining hole, and a horizontal joining hole formed in a horizontal portion, a right corner and a vertical portion of a PC wall panel, By directly fixing, the existing reinforced concrete frame composed of the column and the beam can be easily seismically reinforced and the stress transmission efficiency can be improved.

According to the embodiments of the present invention, it is possible to secure a sufficient opening area by using the PC wall panels, which are entirely L-shape including the horizontal portion, the vertical portion and the right-angled portion, individually or in pairs, Not only the interference can be minimized, but also it is possible to provide a space necessary for the anchoring work of the PC wall panel, such as inserting the drill drill or the anchor member through the horizontal joining hole, the inclined joining hole and the vertical joining hole.

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.

According to the embodiments of the present invention, by forming a plurality of inclined engagement holes for inserting the anchor member in the inside of the right-angled portion connecting the horizontal portion and the vertical portion, it is possible to minimize the shear crack generated in the right corner portion, The strength of the wall panel can be improved and the structural strength can be increased.

According to the embodiments of the present invention, since the tubular member is removed from the curing concrete, the vertical coupling hole, the horizontal coupling hole, and the slant coupling hole formed by the concrete can be made purely of concrete and then injected after the anchor member or the anchor member is inserted It is possible to increase the adhesion with the anchor injection liquid or grouting material.

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 illustrating a PC wall panel according to an embodiment of the present invention.
4 is a view showing an example of vertical and horizontal coupling holes.
5 is a view showing another example of the vertical and horizontal coupling holes.
6 is a view showing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention.
7 is a view illustrating a process of forming an anchor hole in a reinforced concrete frame by inserting a drill hole into a vertical coupling hole.
8 and 9 are views showing a coupling relationship between the PC wall panel and the reinforced concrete frame.
10 is a perspective view of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention, in which a PC wall panel is installed in an open space of a reinforced concrete frame and then a concrete finishing material is laid to integrate a PC wall panel and a reinforced concrete frame Fig.
11 is a view showing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to another embodiment of the present invention.
12 is a perspective view of a PC wall panel according to another embodiment of the present invention, in which a PC wall panel is installed in an open space of a reinforced concrete frame, and then a concrete finishing material is laid to integrate a PC wall panel and a reinforced concrete frame Fig.
Fig. 13 is a view showing a reinforced concrete frame seismic reinforcing structure completed with an exterior finish.
14 is a view showing a method of constructing a reinforced concrete frame seismic retrofitting structure according to an embodiment of the present invention.
Fig. 15 is a view showing an example of a method for coping with a PC wall panel.
16 is a view showing a method of manufacturing a PC wall panel for seismic strengthening according to an embodiment of the present invention.
17 is a view showing an example of a mold for manufacturing a PC wall panel.
18 is a view showing a process of drawing a tubular member through a tubular member drawing hole in a state where concrete is hardened to some extent in a mold.

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 a target portion, and does not necessarily mean that the target portion 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 PC wall panel for seismic reinforcement of a reinforced concrete frame according to the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings, Elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

3 is a view illustrating a PC wall panel according to an embodiment of the present invention.

3, the PC wall panel 100 according to an exemplary embodiment of the present invention may include a horizontal portion 110, a vertical portion 120, and a right corner portion 130. Referring to FIG. As illustrated in the figure, the horizontal portion 110, the vertical portion 120, and the right corner portion 130 may be formed together to form an L-shaped PC wall panel 100 as a whole.

The horizontal part 110 may have a rectangular column shape extending in the horizontal direction with reference to the drawing. The vertical part 120 may have a rectangular column shape extending in the vertical direction. The right corner part 130 may include a horizontal part The horizontal portion 110 and the vertical portion 120 may form an L-shape as a whole, which connects the vertical portion 110 and the vertical portion 120 together.

The horizontal portion 110, the vertical portion 120, and the right corner portion 130 may be made of a concrete or reinforced concrete structure. In addition, the horizontal portion 110, the vertical portion 120, and the right corner portion 130 may be integrally formed, for example, by a single die.

When the PC wall panel 100 is installed in the open space 15 of the reinforced concrete frame 10, the horizontal part 110 can be brought into close contact with the bottom surface of the open space 15, And the right corner portion 130 can be in close contact with the bottom surface and the side surface of the open space 15 at the same time. In this case, the bottom surface of the open space 15 means the upper surface of the reinforced concrete beam 13, or in the case of the lowermost layer, it may mean the upper surface of the foundation, and the side surface of the open space 15 is the side surface of the reinforced concrete column 11 It can mean.

A plurality of vertical coupling holes 111 for insertion of the anchor member 30 may be formed in the horizontal portion 110. The vertical coupling holes 111 may be formed to penetrate the horizontal portion 110 in the vertical direction and the plurality of vertical coupling holes 111 may be spaced apart from each other in the longitudinal direction of the horizontal portion 110.

A plurality of horizontal coupling holes 121 for insertion of the anchor member 30 may be formed in the vertical part 120. The horizontal coupling hole 121 may be formed to penetrate the vertical portion 120 in the horizontal direction and the horizontal coupling holes 121 may be spaced apart from each other in the longitudinal direction of the vertical portion 120.

Herein, the right corner 130 refers to an area that can connect them between the horizontal part 110 and the vertical part 120.

A plurality of inclined engagement holes 131 for inserting the anchor member 30 may be formed in the right corner portion 130. The oblique coupling hole 131 may be formed to penetrate the right angled portion 130 in the horizontal direction and the plurality of oblique coupling holes 131 may be formed radially from the inner side surface of the right angled portion 130 to the outer side surface thereof And extending in an umbrella shape).

The inner surfaces of the vertical coupling hole 111 and the horizontal coupling hole 121 and the inclined coupling hole 131 are formed to have an adhesive force with the anchor injection liquid or the grouting material 40 injected after the insertion of the anchor member 30 or the anchor member 30 The concrete surface may be exposed.

The vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 may be formed in various ways when the PC wall panel 100 is manufactured. For example, the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 may be formed by placing the concrete in a state in which tubular styrofoam, PVC pipe or steel pipe is fixed to the form, Or by removing styrofoam, PVC pipe or the like before it is made. Particularly, when the PVC pipe is used, the horizontal degree of the PC wall panel 100 can be easily adjusted according to the length of the PVC pipe.

A plurality of connection members 140 may be formed to protrude from the free ends of the horizontal portion 110 and the vertical portion 120.

The connecting member 140 is disposed between the free ends of the horizontal part 110 and the vertical part 120 and the free end of the reinforced concrete frame 10 So that it is possible to improve the bonding force between the reinforced concrete frame 10 and the PC wall panel 100. As a result,

The connecting member 140 may have various shapes. Specifically, the connecting member 140 formed at the free end of the horizontal part 110 may have a FOUP shape, and the connecting member 140 formed at the free end of the vertical part 120 may have a shape of a front end joint . Of course, the connecting member 140 formed at the free end of the horizontal part 110 may be formed of a shear connection member, and the connecting member 140 formed at the free end of the vertical part 120 may have a hoop shape.

Fig. 4 is a view showing one example of vertical and horizontal coupling holes, and Fig. 5 is a view showing another example of vertical and horizontal coupling holes.

4 and 5, the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 of the end portion of the open space 15 of the reinforced concrete frame 10, The stopper 150 may be filled.

The blocking member 150 can close the ends of the vertical coupling hole 111 and the horizontal coupling hole 121. As a result, after the PC wall panel 100 is installed in the open space 15 of the reinforced concrete frame 10, the reinforced concrete frame 10 is prevented from being short- It is possible to prevent the sealing material S from flowing into the vertical coupling hole 111 and the horizontal coupling hole 121 when the sealing material S is injected between the concrete frame 10 and the PC wall panel 100. [ The blocking material 150 may be destroyed by a drilling drill (see FIG. 7) in the process of forming the anchor hole 19 later.

The blockage material 150 may include a dry pack, which is a mortar made of an elastic material such as a backup material.

The perforated member 160 having an inner diameter reduced can be formed at the ends of the vertical coupling hole 111 and the horizontal coupling hole 121 so that the sealing member 150 can be more easily sealed.

Although not shown, the end portion of the inclined engagement hole 131, which is in contact with the bottom surface or the side surface of the open space 15, may also be filled with the stopping material 150. A steel frame extending to the inside of the right corner 130 is embedded in the horizontal part 110 and the vertical part 120 so that the connection between the horizontal part 110 and the vertical part 120 and the right corner part 130 .

6 is a view showing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention. The PC wall panel according to the above-described embodiment is installed in an open space of a reinforced concrete frame composed of columns and beams .

Referring to FIG. 6, the reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention includes a reinforced concrete frame 10, a PC wall panel 100, an anchor member 30, a grouting material 40, 50).

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.

In the present embodiment, the L-shaped PC wall panel 100 is installed in the open space 15 of the reinforced concrete frame 10 to reinforce the reinforced concrete frame 10. In the following embodiment, two or more L-shaped PC wall panels are mutually symmetrically arranged according to the interval between the columns and the columns of the reinforced concrete frame 10 so as to be generally U-shaped or " It is also possible to reinforce.

In this way, the PC wall panel is installed in the open space 15 so as to form an L-shape, a U-shape, or a "ㅁ" shape as a whole to naturally form an opening for a window or the like when reinforcing the existing reinforced concrete frame. The seismic performance of the reinforced concrete frame made of the beam can be improved.

As described above, a plurality of vertical coupling holes 211 and horizontal coupling holes 221 are formed through the horizontal portion 21 and the vertical portion 22, respectively, and a plurality of inclined A coupling hole can be formed through the hole.

6, the horizontal portion, the vertical portion, and the right-angled portion may be installed so as to be in close contact with at least one of the bottom surface and the side surface of the open space 15 of the reinforced concrete frame.

7 is a view illustrating a process of forming an anchor hole 19 in a reinforced concrete frame 10 by inserting a drilling drill into a vertical coupling hole 111.

Anchor holes 19 for fixing the anchor members 30 may be formed in the reinforced concrete frame 10. 7, a perforation drill is inserted into the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131 of the PC wall panel 100 to form a reinforced concrete frame 10 The anchor holes 19 can be formed in such a manner that the anchor holes 19 are formed.

The anchor member 30 can be coupled to the anchor hole 19 formed in the reinforced concrete frame 10 by being inserted into the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131.

The anchor member 30 is inserted into the anchor hole 19 while the anchor liquid is previously injected into the anchor hole 19 so that the anchor member 30 can be inserted into the PC wall panel 19. [ So that the reinforcing frame 100 and the reinforced concrete frame 10 can be firmly fixed to each other. The perforated member 150 provided at the ends of the vertical engaging holes 111, the horizontal engaging holes 121 and the inclined engaging holes 131 can be removed by drilling drills during the drilling operation for forming the anchor holes 19 .

The anchor member 30 is inserted into the column 11 or the beam 11 existing through the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131 formed in the PC wall panel 100, 13 so that the PC wall panel 100 can be fixed to the reinforced concrete frame 10.

Therefore, a separate joining member protruding outside the PC wall panel is not required for fixing the PC wall panel to the existing reinforced concrete frame, and the PC wall panel is directly coupled to the reinforced concrete frame by using the anchor member 30, It is possible to greatly improve the seismic performance of the existing structure reinforced by the masonry structure.

8 and 9 are views showing a coupling relationship between the PC wall panel and the reinforced concrete frame.

The free ends of the horizontal part 110 and the vertical part 120 of the PC wall panel 100 are provided with a plurality of connecting members 130 embedded in the concrete finishing material 50, (140) may be formed to protrude. The reinforcing concrete frame 10 may be formed so that a plurality of connecting members 17 embedded in the concrete finishing material 50 are protruded. Specifically, when one PC wall panel 100 is installed in the open space 15, a plurality of connections (not shown) are formed in a portion of the reinforced concrete frame 10 opposite to the free ends of the horizontal portion 110 and the vertical portion 120, Member 17 can be formed in the reinforced concrete frame 10 and two or more PC wall panels 100 are installed in the open space 15. In the reinforced concrete frame 10, A connecting member 17 may be formed.

Like the connecting member 140 of the PC wall panel 100, the connecting member 17 provided on the reinforced concrete frame 10 may have various shapes. Specifically, the connecting member 17 formed at a portion opposite to the free end of the horizontal portion 110 may have a FOUP shape and may include a connecting member 17 formed at a portion facing the free end of the vertical portion 120, May be in the form of a shear connector. On the other hand, reinforcing bars 18 may be further embedded in the overlapping portions of the connecting members 17 and 140 having the FOUP shape.

The grouting material 40 can be filled in the inner space of the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131. [ The grouting material 40 can fill the remaining space of the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131 in a state where the anchor member 30 is inserted. The grouting material 40 may comprise non-shrinkage mortar. The PC wall panel and the reinforced concrete frame can be integrally combined according to the filling of the grouting material 40. [

10 is a view showing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to an embodiment of the present invention. 10, a PC wall panel is installed in an open space of a reinforced concrete frame, and a concrete finishing material is installed to confirm that the PC wall panel and the reinforced concrete frame are integrated.

10, when one PC wall panel 100 is installed in the open space 15, the concrete finishing material 50 has a free end of the horizontal part 110 and the vertical part 120, (10). ≪ / RTI >

In another embodiment, when two PC wall panels 100 are installed in the open space 15, the concrete finishing material 50 is placed between the free ends of the horizontal portions 110 constituting the first PC wall panel 100, The space between the free ends of the horizontal part 110 constituting the second PC wall panel 100 and the free space of the vertical part 120 constituting the first PC wall panel 100 and the second PC wall panel 100 The reinforced concrete frame 10 can be installed in a space between the step and the reinforced concrete frame 10.

11 is a view showing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to another embodiment of the present invention, in which a PC wall panel is installed in an open space of a reinforced concrete frame. 12 is a perspective view of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to another embodiment of the present invention, in which a PC wall panel is installed in an open space of a reinforced concrete frame, And FIG.

11 and 12, a reinforced concrete frame seismic reinforcing structure according to another embodiment of the present invention includes a reinforced concrete frame 10, a pair of PC wall panels 100 disposed symmetrically with respect to each other, 30, a grouting material 40, and a concrete finishing material 50.

The PC wall panel 100 may be installed in the open space 15 such that the horizontal portion 110 and the vertical portion 120 are in close contact with the bottom surface and the side surface of the open space 15, respectively. The right corner part 130 may be installed in the open space 15 so as to be in close contact with both the bottom surface and the side surface of the open space 15.

Unlike the above-described embodiment, two PC wall panels 100 may be symmetrically installed in the open space 15. In this case, the first PC wall panel 100 may be installed such that the vertical part 120 is in close contact with one side of the open space 15, (15). As a result, the first PC wall panel 100 may be generally U-shaped together with the second PC wall panel 100.

The sealing material S can be injected into the portion of the PC wall panel 100 which is in close contact with the reinforced concrete frame 10 (refer to FIG. 7).

A plurality of connecting members 140 embedded in the concrete finishing material 50 may protrude from the free ends of the horizontal part 110 and the vertical part 120 of the PC wall panel 100. [

The reinforcing concrete frame 10 may be formed so that a plurality of connecting members 17 embedded in the concrete finishing material 50 are protruded. Specifically, when one PC wall panel 100 is installed in the open space 15, a plurality of connections (not shown) are formed in a portion of the reinforced concrete frame 10 opposite to the free ends of the horizontal portion 110 and the vertical portion 120, Member 17 can be formed in the reinforced concrete frame 10 and two or more PC wall panels 100 are installed in the open space 15. In the reinforced concrete frame 10, A connecting member 17 may be formed.

The connecting member 17 may have various shapes. Specifically, the connecting member 17 formed at a portion opposite to the free end of the horizontal portion 110 may have a FOUP shape and may include a connecting member 17 formed at a portion facing the free end of the vertical portion 120, May be in the form of a shear connector. On the other hand, the vertical reinforcing bars may be embedded in the overlapping portions of the connecting members 17 and 400.

The anchor member 30 may be inserted into the vertical coupling hole 111 and the horizontal coupling hole 121 and may be coupled to the anchor hole 19 formed in the reinforced concrete frame 10.

The grouting material 40 may be filled in the remaining space of the vertical coupling hole 111 and the horizontal coupling hole 121 inserted into the anchor member 30. [ The grouting material 40 may comprise non-shrinkage mortar.

When the two PC wall panels 100 are symmetrically installed in the open space 15 as in the present embodiment, the concrete finishing material 50 is disposed between the horizontal part 110 constituting the first PC wall panel 100, A space between the free end of the first PC wall panel 100 and the free end of the horizontal part 110 constituting the second PC wall panel 100 and the vertical part 120 ) And the reinforced concrete frame (10).

Fig. 13 is a view showing a reinforced concrete frame seismic reinforcing structure completed with an exterior finish.

After the concrete finishing material 50 is placed between the PC wall panel 100 and the reinforced concrete frame 10, the reinforcing concrete frame 10 is inserted into the opening formed by the PC wall panel 100 and the reinforced concrete frame 10, The window can be installed. In addition, a wall tile may be attached to the outside of the PC wall panel 100 and the concrete finishing material 50 to complete the finishing work of the reinforced concrete frame seismic reinforcing structure.

14 is a view showing a method of constructing a reinforced concrete frame seismic retrofitting structure according to an embodiment of the present invention.

Referring to FIG. 14, a method of constructing a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention includes forming an open space in a reinforced concrete frame (S100), installing a connecting member in a reinforced concrete frame A step S160 of inserting an anchor member, a step S160 of filling a grouting material S160, a step S160 of injecting a sealant, And placing a concrete finish (S170).

First, the window and masonry installed on the reinforced concrete frame 10 can be removed to form the open space 15 (S100).

Next, a plurality of connecting members 17 may be installed in the reinforced concrete frame 10 (S110). The plurality of connecting members 17 may be coupled to the connecting member engaging holes after forming the connecting member engaging holes by using the drilling drill in the reinforced concrete frame 10. [

Next, the PC wall panel 100 can be lifted and installed in the open space 15 of the reinforced concrete frame 10 (S120).

Fig. 15 is a view showing an example of a method for coping with a PC wall panel. Referring to FIG. 15, the PC wall panel 100 can be lifted while maintaining the horizontal and vertical states by connecting a pair of wires to one side of the horizontal part 110 and the other side of the vertical part 120. To this end, a wire coupling hole for connecting the pair of wires may be formed on one side of the horizontal part 110 and the other side of the vertical part 120, or a pair of wedge rings may be coupled. The operation of installing the PC wall panel 100 may be such that the horizontal portion 110 is brought into close contact with the bottom surface of the open space 15 and the vertical portion 120 is brought into close contact with the side surface of the open space 15. [

Next, the sealing material S may be injected between the reinforced concrete frame 10 and the PC wall panel 100 so that the PC wall panel 100 does not generate a gap in the portion of the reinforced concrete frame 10 that is in close contact with the reinforced concrete frame 10 (S130). The end portion of the vertical engagement hole 111, the horizontal engagement hole 121 and the inclined engagement hole 131 which is in contact with the bottom or side face of the open space 15 is closed by the stopper member 150, It is possible to prevent the sealing material S from flowing into the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 in the process of FIG.

Next, an anchor hole 19 may be formed in the reinforced concrete frame 10 by inserting a drilling drill into the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 (S140). As described above, the stopper 150 may be broken by the perforated drill in the process of forming the anchor hole 19 and may be perforated.

Next, the anchor member 30 may be inserted into the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 to be coupled to the anchor hole 19 (S150). The anchor member 30 can be fitted to the anchor hole 19 and fixed to the anchor hole 19 by the anchor injection liquid injected after the anchor member 30 is engaged.

Next, the grouting material 40 may be filled in the remaining space of the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 (S160). Specifically, the grouting material 40 is inserted into the vertical coupling hole 111, the horizontal coupling hole 121, and the inclined coupling hole 131 while the anchor member 30 is inserted into the vertical coupling hole 111, It is possible to fill the remaining space of the inclined engagement hole 121 and the inclined engagement hole 131.

Next, the concrete finishing material 50 may be laid in the clearance space between the reinforced concrete frame 10 and the PC wall panel 100 (S170). Specifically, the concrete finishing material 50 is disposed between the free ends of the horizontal part 110 and the vertical part 120 and the free end of the reinforced concrete frame 10 when one PC wall panel 100 is installed in the open space 15. [ And when two PC wall panels 100 are installed in the open space 15, the free ends of the horizontal part 110 constituting the first PC wall panel 100 and the free ends of the second PC wall panel 100, A free space between the free ends of the horizontal part 110 constituting the first PC wall panel 100 and the free ends of the vertical part 120 constituting the first PC wall panel 100 and the second PC wall panel 100, 10 of the present invention.

Hereinafter, a method of manufacturing a PC wall panel for seismic strengthening according to an embodiment of the present invention will be described with reference to FIGS. 16 to 18. FIG.

16 is a view showing a method of manufacturing a PC wall panel for seismic strengthening according to an embodiment of the present invention. FIG. 17 is a view showing an example of a mold for manufacturing a PC wall panel, and FIG. 18 is a view showing a process of drawing a tubular member through a tubular member drawing hole in a state where concrete is hardened to some extent in a mold.

Referring to FIG. 16, a method of manufacturing a PC wall panel for seismic retrofitting according to an embodiment of the present invention includes steps of providing a mold S200, fixing a plurality of tubular members in a mold S210, A step S230 of pouring the concrete into the concrete, a step S230 of curing the concrete in the formwork, and a step S240 of drawing the tubular member from the concrete, and removing the formwork in the hardened concrete S250 .

First, the mold 200, which is generally L-shaped, may be provided according to the shape of the PC wall panel 100 (S200). As an example, the formwork 200 includes an L-shaped front plate member 210 and a rear plate member 220 arranged to be spaced apart from each other; And a plurality of side plate members 230 for integrating the front and rear plate members 210 and 220 between the front plate member 210 and the rear plate member 220. The front plate member 210, the rear plate member 220, and the side plate members 230 may be mutually fixed by fixing means such as nails.

A plurality of tubular member draw-out holes 240 may be formed through the side plate member 230 in correspondence with positions where the tubular member 250 is to be fixed.

The tubular member 250 is a tubular member such as a pipe and is provided with a vertical coupling hole 111 and a horizontal coupling hole 121 and an inclined coupling hole 131 in the PC wall panel 100 In order to facilitate the construction thereof. The tubular member 250 may include tubular styrofoam, PVC pipe, steel pipe, or the like.

The tubular member draw-out holes 240 serve to more easily fix the above-described tubular member 250 at a corresponding position in the mold 200. 17, the tubular member draw-out hole 240 is formed to penetrate through the side plate member 230 of the formwork 200 so that the formwork 200 is inserted into the vertical coupling hole 111, The tubular member 250 can be positioned (fixed) within the mold 200 in correspondence with the position of the tubular member 121 and the inclined joint hole 131. [

Next, in the PC wall panel 100, a plurality of tubular members 250 (not shown) are formed in the formwork 200 corresponding to respective positions where the vertical coupling hole 111, the horizontal coupling hole 121 and the slanted coupling hole 131 are to be formed, (S210).

Referring to FIG. 17, tubular member 250 may be secured to tubular member draw-out 240 of form 200. That is, since the tubular member draw-out hole 240 is formed in the side plate 230 so as to pass through the vertical coupling hole 111, the horizontal coupling hole 121, and the slanted hole 131, The tubular member 250 can be secured within the mold 200 by engaging the tubular member 250 with a corresponding fit of each of the tubular member draw-out holes 240.

Next, the concrete C may be placed in the mold 200 so that the tubular member 250 is embedded in the concrete C (S220). 18, since the upper portion of the formwork 200 is in the open state, the concrete C can be placed in the formwork 200 through the openings. At this time, since the tubular member 250 is positioned at the position where the vertical coupling hole 111, the horizontal coupling hole 121 and the inclined coupling hole 131 are to be formed, the remaining space except for the above positions is filled with the concrete C .

Next, after the concrete C is placed in the mold 200, the concrete C may be cured in the mold 200 for a predetermined period of time (S230). The preset time may be adjusted according to the environmental conditions at the production site. If the concrete C is completely cured, the previously installed tubular member 250 can not be separated from the concrete C. Therefore, the predetermined time is set to the maximum range from the point of time when the concrete C is poured from the concrete C to the point of time when the tubular member 250 embedded in the concrete C is poured from the concrete C Can be determined.

Next, when the predetermined time is reached during curing of the concrete C in the formwork 200, the tubular member 250 may be extracted from the concrete C (S240). At this time, the concrete C is still curing in the mold 200, and when the tubular member 250 is pulled out from the concrete C, the concrete C starts to harden gradually and the tubular member 250 is removed It is possible to prevent the form of the concrete C from collapsing.

By removing the tubular member 250 from the curing concrete C as described above, the vertical joint hole 111, the horizontal joint hole 121 and the inclined joint hole 131 formed by the concrete C are integrally formed with the concrete It is possible to increase the adhesive force between the anchor member 30 and the grouting material 40 injected after the anchor member 30 or the anchor member 30 is inserted.

At this time, the tubular member 250 can be drawn out to the outside through the tubular member draw-out hole 240 provided in the side plate member 230 of the formwork 200. In the step S210 of fixing the tubular member in advance, the tubular member withdrawal hole 240 serves to fix the tubular member 250 at a corresponding position in the mold 200, while in this step S240, The tubular member draw-out hole 240 may be used as a passage for discharging the tubular member 250 from the mold 200 to the outside.

If the concrete C is completely cured in the state where the tubular member 250 is removed from the concrete C as described above, the mold 200 can be removed from the hardened concrete C (S250).

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
17: connecting member 18: reinforcing bar
19: anchor hole 30: anchor member
40: grouting material 50: concrete finishing material
S: sealing material 100: PC wall panel
110: horizontal portion 111: vertical joining hole
120: vertical part 121: horizontal joining hole
130: Right Angle portion 131: Right Angle Joining Ball
140: connecting member 150: blocking member
160: step jaw 200: die
210: front plate member 220: rear plate member
230: side plate member 240: tubular member drawing ball
250: tubular member C: concrete

Claims (7)

The present invention relates to a PC wall panel installed in an open space of a reinforced concrete frame composed of a reinforced concrete column and a beam to seismically reinforce the reinforced concrete frame,
A horizontal part closely contacting the bottom surface of the open space of the reinforced concrete frame;
A vertical part which is in close contact with a side surface of the open space of the reinforced concrete frame; And
And a ridge portion which is in close contact with a bottom surface and a side surface of the open space of the reinforced concrete frame and connects the horizontal portion and the vertical portion,
A plurality of vertical engagement holes for inserting the anchor members are formed in the horizontal portion so as to penetrate in the vertical direction,
Wherein a plurality of horizontal engagement holes for inserting the anchor members are formed in the vertical portion in a horizontal direction,
Wherein a plurality of inclined engagement holes for inserting the anchor members are formed radially through the right corner,
Wherein the vertical coupling hole, the horizontal coupling hole,
The method comprising: placing the concrete in a state where the tubular member is fixed to each of the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole to form a shape of the PC wall panel; The tubular member being formed by removing the tubular member from the mold,
Wherein the end wall of the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole, which are in contact with at least one of the bottom surface and the side surface of the open space of the reinforced concrete frame, are provided with blocking material.
The method according to claim 1,
And a plurality of connecting members protruding from the free ends of the horizontal portion and the vertical portion.
delete A method of manufacturing a PC wall panel according to claim 1,
Providing a mold corresponding to the shape of the PC wall panel;
Fixing a plurality of tubular members in the formwork corresponding to respective positions where the vertical joint hole, the horizontal joint hole and the inclined joint hole are to be formed in the PC wall panel;
Placing the concrete in the mold so that the tubular member is embedded;
Curing the concrete in the mold for a predetermined period of time; And
And withdrawing the tubular member from the concrete when the predetermined time is reached.
5. The method of claim 4,
Further comprising removing the mold from the concrete when the concrete is completely cured. ≪ RTI ID = 0.0 > 11. < / RTI >
1. A method of manufacturing a PC wall panel installed in an open space of a reinforced concrete frame composed of a reinforced concrete column and a beam to seismically reinforce the reinforced concrete frame,
The PC wall panel includes:
A horizontal part closely contacting the bottom surface of the open space of the reinforced concrete frame;
A vertical part which is in close contact with a side surface of the open space of the reinforced concrete frame; And
And a ridge portion which is in close contact with a bottom surface and a side surface of the open space of the reinforced concrete frame and connects the horizontal portion and the vertical portion,
A plurality of vertical engagement holes for inserting the anchor members are formed in the horizontal portion so as to penetrate in the vertical direction,
Wherein a plurality of horizontal engagement holes for inserting the anchor members are formed in the vertical portion in a horizontal direction,
Wherein a plurality of inclined engagement holes for inserting the anchor members are formed radially through the right corner,
Wherein the vertical coupling hole, the horizontal coupling hole,
The method comprising: placing the concrete in a state where the tubular member is fixed to each of the vertical coupling hole, the horizontal coupling hole, and the inclined coupling hole to form a shape of the PC wall panel; The tubular member being formed by removing the tubular member from the mold,
A method of manufacturing a PC wall panel,
Providing a mold corresponding to the shape of the PC wall panel;
Fixing a plurality of tubular members in the formwork corresponding to respective positions where the vertical joint hole, the horizontal joint hole and the inclined joint hole are to be formed in the PC wall panel;
Placing the concrete in the mold so that the tubular member is embedded;
Curing the concrete in the mold for a predetermined period of time; And
And withdrawing the tubular member from the concrete when the predetermined time is reached,
The mold,
An L-shaped front plate and a rear plate arranged to be spaced apart from each other; And
And a plurality of side plate members for integrating the front and rear plate members between the front plate member and the rear plate member,
Wherein a plurality of tubular draw-out holes are formed in the side plate so as to correspond to positions where the tubular members are to be fixed.
The method according to claim 6,
In pulling out the tubular member,
Wherein the tubular member is pulled out to the outside through the tubular member draw-out hole provided in the formwork.

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