KR20180118385A - 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 reinforcing PC wall panel of a reinforced concrete frame, a reinforced concrete frame seismic reinforcing structure using a PC wall panel, and a construction method thereof. One aspect of the present invention relates to a PC wall panel installed for seismic reinforcement in an open space of a reinforced concrete frame composed of a reinforced concrete column and a beam. The PC wall panel of the present invention includes a horizontal portion in close contact with the bottom surface of the open space of the reinforced concrete frame; a vertical portion in close contact with a side surface of the open space of the reinforced concrete frame; and a right angled portion in close contact with the bottom surface and a side surface of the open space of the reinforced concrete frame and connecting the horizontal portion and the vertical portion to form an L-shape as a whole together with the horizontal portion and the vertical portion. A plurality of vertical coupling holes for anchor member insertion are formed in a vertically penetrating manner in the horizontal portion. A plurality of horizontal coupling holes for anchor member insertion are formed in a horizontally penetrating manner in the vertical portion. Inside the horizontal portion, the vertical portion, and the right angled portion, a cast iron rope is embedded that is continuously bent in a shape corresponding to the shape of the outer peripheral surface of the horizontal portion, the vertical portion, and the right angled portion.

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 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, PC wall panel, and its construction method.

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 degraded, and there is a problem that the usability is deteriorated due to the open feeling due to the interference between the reinforcement and the window.

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 Have been filed and registered.

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 reinforced concrete frame seismic reinforcing structure using a PC wall panel, a PC wall panel, and a construction method thereof for the seismic reinforcing of a reinforced concrete frame in which the above-described problems are solved.

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, the reinforced concrete frame having a horizontal portion closely contacting a 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 a right angle portion closely contacted with a bottom surface and a side surface of the open space of the reinforced concrete frame and connected to the horizontal portion and the vertical portion to form an L-shape as a whole together with the horizontal portion and the vertical portion, A plurality of horizontal coupling holes for inserting the anchor members are formed in the vertical portion, and a plurality of horizontal coupling holes for inserting the anchor members are formed in the vertical portion so as to penetrate in the horizontal direction, and the horizontal portion, And a continuous cast iron core is embedded in the inside of the right-angled portion in a shape corresponding to the shape of the outer periphery of the horizontal portion, the vertical portion, and the right-angled portion.

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

A blocking material may be provided at the ends of the vertical coupling hole and the horizontal coupling hole which are in contact with the bottom surface or the side surface of the open space of the reinforced concrete frame.

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 so that a horizontal portion and a vertical portion are in close contact with a bottom surface and a side surface of the open space of the reinforced concrete frame; An anchor member inserted into the vertical coupling hole and the horizontal coupling hole and fixed to the reinforced concrete frame; A grouting material filled in the remaining space of the vertical coupling hole and the horizontal coupling hole; And a concrete finishing material poured into a space between the free end of the horizontal part and the vertical part and the reinforced concrete frame.

According to another aspect of the present invention, there is provided a reinforced concrete frame comprising a reinforced concrete column and a beam; A first PC wall panel installed in the open space of the reinforced concrete frame so that the horizontal portion and the vertical portion are in close contact with the bottom surface and one side surface of the open space of the reinforced concrete frame; A second PC wall panel installed in the open space of the reinforced concrete frame so that the horizontal portion and the vertical portion are in close contact with the bottom surface and the other side surface of the open space of the reinforced concrete frame, An anchor member inserted into the vertical coupling hole and the horizontal coupling hole and fixed to the reinforced concrete frame; A grouting material filled in the remaining space of the vertical coupling hole and the horizontal coupling hole; And a space between a free end of the horizontal part constituting the first PC wall panel and a free end of the horizontal part constituting the second PC wall panel and a space between the free end of the horizontal part and the free end of the horizontal part constituting the first PC wall panel, And a concrete finishing material poured into a space between the free end of the vertical part and the reinforced concrete frame. The reinforced concrete frame seismic reinforcing structure may be provided.

A plurality of connecting members embedded in the concrete finishing material may protrude from the free ends of the horizontal portion and the vertical portion and the reinforced concrete frame.

The anchor member may be formed in such a shape that the cross-sectional area of the anchor member is expanded at at least one point along the longitudinal direction.

According to another aspect of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure, comprising: forming an open space by removing a window and a masonry installed in the reinforced concrete frame; Installing a plurality of connecting members in the reinforced concrete frame; Installing the PC wall panel in the open space of the reinforced concrete frame by lifting up the PC wall panel so that a plurality of connecting members protrude from the free end of the horizontal part and the vertical part; Forming an anchor hole in the reinforced concrete frame by inserting a drilling drill into the vertical coupling hole and the horizontal coupling hole; Inserting the anchor member into the vertical coupling hole and the horizontal coupling hole and coupling the anchor hole to the anchor hole; Filling the vertical coupling hole and the horizontal coupling hole with a grouting material; And placing the concrete finishing material in a space between the free end of the horizontal part and the vertical part and the reinforced concrete frame.

According to another aspect of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure, comprising: forming an open space by removing a window and a masonry installed in the reinforced concrete frame; Installing a plurality of connecting members in the reinforced concrete frame; Installing the first PC wall panel and the second wall panel in the open space of the reinforced concrete frame so that a plurality of connecting members protrude from the free end of the horizontal part and the vertical part; Forming an anchor hole in the reinforced concrete frame by inserting a drilling drill into the vertical coupling hole and the horizontal coupling hole; Inserting the anchor member into the vertical coupling hole and the horizontal coupling hole and coupling the anchor hole to the anchor hole; Filling the vertical coupling hole and the horizontal coupling hole with a grouting material; And a space between a free end of the horizontal part constituting the first PC wall panel and a free end of the horizontal part constituting the second PC wall panel and a space between the free end of the horizontal part and the free end of the horizontal part constituting the first PC wall panel, And placing the concrete finishing material in a space between the free end of the vertical part and the reinforced concrete frame.

And injecting a sealing material between the PC wall panel and the reinforced concrete frame so that no clearance is generated in a portion of the PC wall panel that is in close contact with the reinforced concrete frame, after the step of installing the PC wall panel And blocking members may be provided at the ends of the vertical coupling holes and the horizontal coupling holes which are in contact with the bottom surface or the side surface of the open space of the reinforced concrete frame.

The step of installing the PC wall panel may include binding the connecting member of the reinforced concrete frame and the connecting member of the horizontal portion and the vertical portion to the auxiliary member so as to support the PC wall panel with respect to the reinforced concrete frame have.

Wherein the step of installing the PC wall panel comprises the steps of mounting a plurality of shear reinforcing bars on the free end of the vertical part in the shape of wrapping the side surface of the connecting part of the vertical part, lifting the PC wall panel, And adjusting the installation position of each of the shear reinforcing bars so that the adjacent shearing reinforcing bars are spaced apart from each other.

Wherein the PC wall panel is provided with a pair of hooks on both side surfaces of the horizontal portion and both side surfaces of the vertical portion and the step of installing the PC wall panel includes attaching a pair of hook- So that the PC wall panel can be lifted.

According to the embodiments of the present invention, the PC wall panel is directly fixed to the existing reinforced concrete frame by inserting the anchor member into the vertical coupling hole and the horizontal coupling hole respectively formed in the horizontal portion and the vertical portion of the PC wall panel, The frame 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 interference can be minimized, but also an operator can provide a space necessary for anchoring the PC wall panel, such as inserting a perforation drill or anchor member through a vertical coupling hole and a horizontal coupling 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, since the cast iron rods embedded in the PC wall panel are continuously bent in a shape corresponding to the shape of the outer periphery of the horizontal portion, the vertical portion and the right corner portion, have.

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 a PC wall panel according to an embodiment of the present invention in a state where it is installed in a reinforced concrete frame.
4 is a view illustrating a PC wall panel according to an embodiment of the present invention.
5 is a view showing an example of the horizontal and vertical coupling holes.
6 is a view showing another example of the horizontal and vertical coupling holes.
7 is a view illustrating a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention.
8 is a view showing a reinforced concrete frame seismic reinforcing structure according to another embodiment of the present invention.
9 is a view showing a process of forming an anchor hole in a reinforced concrete frame by inserting a drill drill into a vertical coupling hole.
10 is a view showing a construction method of a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention.
11 and 12 are views showing the coupling relationship between the PC wall panel and the reinforced concrete frame.
13 and 14 are views showing an example of a process of installing a PC wall panel.

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 a PC wall panel according to an embodiment of the present invention in a state where it is installed in a reinforced concrete frame.

Referring to FIG. 3, the reinforced concrete frame 10 may be composed of a reinforced concrete column 11 and a reinforced concrete beam 13. The reinforced concrete frame 10 may include a reinforced concrete column 11 and a reinforced concrete beam 13 may be formed. The PC wall panel 20 according to an embodiment of the present invention is installed in the open space 15 of the reinforced concrete frame 10 to reinforce the reinforced concrete frame 10.

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

Referring to FIG. 4, the PC wall panel 20 according to an embodiment of the present invention may include a horizontal part 100, a vertical part 200, and a right corner part 300. As illustrated in the figure, the horizontal part 100, the vertical part 200, and the right corner part 300 can be formed together to form an L-shaped PC wall panel 100 as a whole.

The horizontal part 100 may have a rectangular column shape extending in the horizontal direction with reference to the drawing and the vertical part 200 may have a rectangular column shape extending in the vertical direction, The horizontal portion 100 and the vertical portion 200 together with the vertical portion 200 can be formed into an L-shape as a whole.

In this case, the horizontal part 100, the vertical part 200 and the right corner part 300 may be made of a concrete or reinforced concrete structure. In addition, the horizontal portion 100, the vertical portion 200, and the right corner portion 300 can be integrally formed, for example, by a single die.

When the PC wall panel 20 is installed in the open space 15 of the reinforced concrete frame 10, the horizontal part 100 can be brought into close contact with the bottom surface of the open space 15, And the right corner portion 300 can be brought into close contact with the bottom surface and 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 110 for insertion of the anchor member 30 may be formed in the horizontal portion 100. The vertical coupling hole 110 may be formed to penetrate the horizontal portion 100 in the vertical direction and the plurality of vertical coupling holes 110 may be spaced apart from each other in the longitudinal direction of the horizontal portion 100.

A plurality of horizontal coupling holes 210 for insertion of the anchor member 30 may be formed in the vertical portion 200. The horizontal coupling hole 210 may be formed to penetrate the vertical part 200 in the horizontal direction and the plurality of horizontal coupling holes 210 may be spaced apart from each other in the longitudinal direction of the vertical part 200.

The inner surfaces of the vertical coupling hole 110 and the horizontal coupling hole 210 are formed in such a manner that the surface of the concrete is exposed in order to increase the adhesion force of the anchor injection material or the grouting material 40 injected after the anchor member 30 or the anchor member 30 is inserted . ≪ / RTI >

The vertical coupling hole 110 and the horizontal coupling hole 210 may be formed in various ways when the PC wall panel 20 is manufactured. As an example, the vertical coupling hole 110 and the horizontal coupling hole 210 may be formed by placing concrete in a state in which tubular styrofoam, PVC pipe, steel pipe or the like is fixed to the formwork and the concrete is styrofoam or PVC pipe Steel pipe and the like. In particular, when the PVC pipe is used, the horizontal degree of the PC wall panel 20 can be easily adjusted according to the length of the PVC pipe.

The horizontal part 100, the vertical part 200 and the right corner part 300 are continuously formed in a shape corresponding to the shape of the outer periphery of the horizontal part 100, the vertical part 200 and the right corner part 300, The cast iron 600 is buried. That is, the cast iron 600 is not intermittently installed for each of the horizontal part 100, the vertical part 200 and the right corner part 300, And may be formed in a bent shape along the shape of the vertical part 200 and the right-angled part so as to be continuously formed as a whole.

In this case, the end portions of the cast iron muscle 300 may be joined to each other by being bound or welded by a binding wire after they are installed so as to overlap each other. 4 shows a configuration in which a single cast iron 300 is continuously installed on the entirety of the horizontal part 100, the vertical part 200 and the right corner part 300. However, the present invention is not limited thereto. The main iron wire 300 continuously installed in a part of the entire section of the horizontal part 100, the vertical part 200 and the right corner part 300 is connected to the main iron wire 300 continuously installed in the remaining part, And the like.

In this way, the cast iron muscle 600 embedded in the PC wall panel 20 according to the present embodiment can be continuously formed in a shape corresponding to the outer peripheral surface shape of the horizontal portion 100, the vertical portion 200 and the right corner portion 300 So that the PC wall panel 20 can be manufactured more easily.

A plurality of connecting members 400 may be formed to protrude from the free ends of the horizontal portion 100 and the vertical portion 200.

The connecting member 400 is used to easily insert the PC wall panel 20 into the open space 15 of the reinforced concrete frame 10 and the free ends of the horizontal part 100 and the vertical part 200 and the free ends of the reinforced concrete frame 10 So that the bonding force between the reinforced concrete frame 10 and the PC wall panel 20 can be improved.

The connecting member 400 may have various shapes. More specifically, the connecting member 400 formed at the free end of the horizontal part 100 may have a FOUP shape, and the connecting member 400 formed at the free end of the vertical part 200 may have a shape of a front end joint . Of course, the connecting member 400 formed at the free end of the horizontal part 100 may be formed of a shear connection member, and the connecting member 400 formed at the free end of the vertical part 200 may have a FOUP shape.

FIG. 5 is a view showing one example of horizontal and vertical coupling holes, and FIG. 6 is a view showing another example of horizontal and vertical coupling holes.

5 and 6, an end portion of the vertical coupling hole 110 and the horizontal coupling hole 210, which is in contact with the bottom surface or the side surface of the open space 15, may be filled with the blocking material 500.

The blocking member 500 can close the ends of the vertical coupling hole 110 and the horizontal coupling hole 210. As a result, after the PC wall panel 20 is installed in the open space 15 of the reinforced concrete frame 10, the reinforcing concrete frame 10, It is possible to prevent the sealing material S from flowing into the vertical coupling hole 110 and the horizontal coupling hole 210 when the sealing material S is injected between the concrete frame 10 and the PC wall panel 20. [ The blockage material 500 may be destroyed by a perforated drill in the process of forming an anchor hole later (see FIG. 7).

The blockage material 500 may include a dry pack, which is a mortar made of an elastic material such as a backup material.

The end portions of the vertical coupling hole 110 and the horizontal coupling hole 210 may be formed with a step portion 510 having an inner diameter reduced to facilitate the sealing by the stopper 500.

FIG. 7 is a view showing a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention, and FIG. 8 is a view showing a reinforced concrete frame seismic reinforcing structure according to another embodiment of the present invention.

7 and 8, a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention and another embodiment includes a reinforced concrete frame 10, a PC wall panel 20, an anchor member 30, (40) and a concrete finish (50).

The PC wall panel 20 may be installed in the open space 15 such that the horizontal part 100 and the vertical part 200 are in close contact with the bottom and sides of the open space 15, respectively.

As an example, one PC wall panel 20 may be installed in the open space 15. [

As another example, two PC wall panels 20 may be provided in the open space 15. In this case, the first PC wall panel 20 may be installed such that the vertical part 200 is in close contact with one side of the open space 15, (15). As a result, the first PC wall panel 20 together with the second PC wall panel 20 can be generally U-shaped.

The sealing material S may be injected in the portion of the PC wall panel 20 which is in close contact with the reinforced concrete frame 10 so that no clearance is generated.

The free ends of the horizontal part 100 and the vertical part 200 in the PC wall panel 20 are provided with a plurality of connection members 50 embedded in the concrete finishing material 50, (Not shown). 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.

More specifically, when one PC wall panel 20 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 100 and the vertical portion 200, Member 17 can be formed in the reinforced concrete frame 10 and two PC wall panels 20 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 100 may have a FOUP shape and may include a connecting member 17 formed at a portion facing the free end of the vertical portion 200, 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 110 and the horizontal coupling hole 210 and may be coupled to the anchor hole 19 formed in the reinforced concrete frame 10.

In this case, the anchor member 30 may be formed in such a shape that its cross-sectional area is expanded at at least one point along the longitudinal direction. That is, as shown in Fig. 7, the anchor member 30 may be formed in an anisotropic shape in which the cross-sectional area of a portion thereof is different from the cross-sectional area of the remaining portion.

The coupling force between the anchor member 30 and the grouting material 40, the vertical coupling hole 110, and the horizontal coupling hole 210 can be further improved.

The grouting material 40 may be filled in the remaining space of the vertical coupling hole 110 and the horizontal coupling hole 210 inserted into the anchor member 30. [ The grouting material 40 can fill the remaining space of the vertical coupling hole 110 and the horizontal coupling hole 210 in a state where the anchor member 30 is inserted. The grouting material 40 may comprise non-shrinkage mortar. The PC wall panel 20 and the reinforced concrete frame 10 can be integrally combined according to the filling of the grouting material 40. [

The concrete finishing material 50 is installed in the space between the free ends of the horizontal part 100 and the vertical part 200 and the reinforced concrete frame 10 when one PC wall panel 20 is installed in the open space 15. [ And when the two PC wall panels 20 are installed in the open space 15, the free ends of the horizontal part 100 constituting the first PC wall panel 20 and the free end of the second PC wall panel 20, Between the free ends of the vertical part 200 constituting the first PC wall panel 20 and the second PC wall panel 20 and the free space between the free ends of the horizontal part 100 constituting the first PC wall panel 20 and the reinforcing concrete frame 10 As shown in Fig.

9 is a view showing a process of forming an anchor hole 19 in a reinforced concrete frame 10 by inserting a drilling drill into the vertical coupling hole 110.

Anchor holes 19 for fixing the anchor members 30 may be formed in the reinforced concrete frame 10. 9, a perforation drill is inserted into the vertical coupling hole 110 and the horizontal coupling hole 210 of the PC wall panel 20 to perforate the reinforced concrete frame 10, Holes 19 can be formed.

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 20 and the reinforced concrete frame 10 can be securely fixed to each other. The perforated member 150 provided at the ends of the vertical coupling hole 110 and the horizontal coupling hole 210 may be removed by drilling drill during the drilling operation for forming the anchor hole 19.

The anchor member 30 is fixed to the existing column 11 or the beam 13 via the vertical coupling hole 110 and the horizontal coupling hole 210 formed in the PC wall panel 20, The wall panel 20 can be fixed to the reinforced concrete frame 10.

Therefore, in order to fix the PC wall panel 20 to the existing reinforced concrete frame 10, a separate joining member protruding outside the PC wall panel 20 is unnecessary, and the anchor member 30 is used to connect the PC wall panel 20 The seismic performance of the existing structure reinforced by the masonry structure such as bricks can be greatly improved by directly connecting the reinforced concrete frame 20 to the reinforced concrete frame 10.

FIG. 10 is a view showing a construction method of a reinforced concrete frame seismic reinforcing structure according to an embodiment of the present invention, FIGS. 11 and 12 are views showing a coupling relationship between a PC wall panel and a reinforced concrete frame, 14 is a view showing an example of the process of installing the PC wall panel.

Referring to FIG. 10, 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 20 can be lifted and installed in the open space 15 of the reinforced concrete frame 10 (S120). The PC wall panel 20 can be lifted while maintaining the horizontal and vertical state by connecting the pair of the center wire W to one side of the horizontal part 100 and the other side of the vertical part 200. [

To this end, a wire coupling hole for connecting the pair of wires W may be formed on one side of the horizontal part 100 and the other side of the vertical part 200, or a pair of upper hooks 800 may be coupled. The operation of installing the PC wall panel 20 may be such that the horizontal portion 100 is brought into close contact with the bottom surface of the open space 15 and the vertical portion 200 is brought into close contact with the side surface of the open space 15. [

13, the PC wall panel 20 is provided with a pair of eyelets 800 on both sides of the horizontal part 100 and on both sides of the vertical part 200. In step S120, The PC wall panel 20 can be lifted by connecting a pair of wired wires W to one side face of the vertical part 200 and the other side wall 800 of the other side of the vertical part 200.

As a result, depending on the installation direction of the PC wall panel 20, the pivot hooks 800 provided on the respective side surfaces can be alternately selected from each other, so that the PC wall panel 20 can be installed more easily. In this case, the pair of wires W can be adjusted in length through a chain block or the like.

Next, the sealing material S may be injected between the reinforced concrete frame 10 and the PC wall panel 20 so that the PC wall panel 20 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 portions of the vertical coupling hole 110 and the horizontal coupling hole 210 which are in contact with the bottom surface or the side surface of the open space 15 are closed by the stopper member 500. Accordingly, in the process of injecting the sealing material S, Can be prevented from entering the vertical coupling hole (110) and the horizontal coupling hole (210).

Next, an anchor hole 19 may be formed in the reinforced concrete frame 10 by inserting a drilling drill into the vertical coupling hole 110 and the horizontal coupling hole 210 (S140). The blocking member 500 may be broken and punctured by a drilling drill in the process of forming the anchor hole 19. [

Next, the anchor member 30 may be inserted into the vertical coupling hole 110 and the horizontal coupling hole 210 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 110 and the horizontal coupling hole 210 (S160).

Next, the concrete finishing material 50 may be laid in the clearance space between the reinforced concrete frame 10 and the PC wall panel 20 (S170). Specifically, the concrete finishing material 50 is disposed between the free ends of the horizontal part 100 and the vertical part 200 and the free end of the reinforced concrete frame 10 when one PC wall panel 20 is installed in the open space 15. [ And in the case where two PC wall panels 20 are installed in the open space 15, the free ends of the horizontal part 100 constituting the first PC wall panel 20 and the free ends of the second PC wall panel 20 constituting the first PC wall panel 20, A free space between the free ends of the horizontal part 100 constituting the first PC wall panel 20 and the free ends of the vertical part 200 constituting the first PC wall panel 20 and the second PC wall panel 20, 10 of the present invention.

11 and 12, the connecting member 17 of the reinforced concrete frame 10 and the horizontal part (not shown) of the reinforced concrete frame 10 are installed to support the PC wall panel 20 with respect to the reinforced concrete frame 10, And binding the connecting member 400 of the vertical portion 200 to the auxiliary member 18 (S123).

That is, in the process of installing the PC wall panel 20 in the open space 15 as described above, before the anchor member 30 is installed, the PC wall panel 20 is moved relative to the reinforced concrete frame 10 . This situation can make the installation of the PC wall panel 20 unstable and it is therefore necessary to temporarily support the PC wall panel 20 with respect to the reinforced concrete frame 10 even before the anchor member 30 is installed have.

11, the connecting member 17 of the reinforced concrete frame 10 and the connecting member 400 of the vertical portion 200, which intersect with each other in the form of a shear connection member, It is possible to prevent the flow through the binding wire or the like.

12, an auxiliary member 18 is provided so as to cross the connecting member 17 of the reinforced concrete frame 10 and the connecting member 400 of the horizontal portion 200, It is possible to prevent the flow by binding after being inserted.

13 and 14, in step S120, a plurality of shear reinforcing bars 700 are formed on the free end of the vertical part 200 in the shape of wrapping the side surface of the connecting member 400 of the vertical part 200. In addition, A step S122 of raising the PC wall panel 20 to the open space 15 of the reinforced concrete frame 10 and a step S122 of moving the front shear reinforcing bars 700 apart from each other And adjusting the installation position of the reinforcing bar 700 (S124).

As described above, when the PC wall panel 20 is lifted up and installed in the open space 15 of the reinforced concrete frame 10, the reinforcing concrete frame 10, (17) may occur.

13, before the PC wall panel 20 is lifted and placed in the open space 15 of the reinforced concrete frame 10, a plurality of shear reinforcing bars 700 are placed in the free space of the vertical part 200 It is possible to prevent interference with the connecting member 17 between the front-end reinforcing bar 700 and the pre-installed reinforced concrete frame 10 only by mounting it on an end face.

14, after the PC wall panel 20 is placed in the open space 15 of the reinforced concrete frame 10, the shear reinforcement is adjusted by adjusting the installation positions of the respective shear reinforcing bars 700 So that each of the shear reinforcing bars 700 can be installed at an appropriate position.

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: auxiliary member
19: Anchor hole 20: PC wall panel
30: anchor member 40: grouting material
50: concrete finishing material 100: horizontal part
110: vertical coupling hole 200: vertical part
210: horizontal coupling hole 300: right corner
400: connecting member 500: sealing member
510: Step jaw 600:
700: Shear reinforcement 800: Sheathing ring
S: sealing material W:

Claims (13)

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 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
A reinforcing frame for reinforcing the reinforced concrete frame, the reinforced concrete frame having a bottom surface and a side surface of the reinforced concrete frame, the reinforcing frame having an L-
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 the vertical portion and the right portion of the right wall are embedded in the horizontal wall, the vertical wall, and the right wall, respectively, so as to correspond to the shape of the outer wall of the horizontal wall, the vertical wall and the right wall.
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.
The method according to claim 1,
Wherein a blocking material is provided at the ends of the vertical coupling hole and the horizontal coupling hole which are in contact with the bottom and side surfaces of the open space of the reinforced concrete frame.
A reinforced concrete frame consisting of reinforced concrete columns and beams;
The PC wall panel according to claim 1, wherein the PC wall panel is installed in the open space of the reinforced concrete frame so that the horizontal part and the vertical part are in close contact with the bottom surface and the side surface of the open space of the reinforced concrete frame.
An anchor member inserted into the vertical coupling hole and the horizontal coupling hole and fixed to the reinforced concrete frame;
A grouting material filled in the remaining space of the vertical coupling hole and the horizontal coupling hole; And
And a concrete finishing material poured into a space between the free end of the horizontal part and the vertical part and the reinforced concrete frame.
A reinforced concrete frame consisting of reinforced concrete columns and beams;
The first PC wall panel according to claim 1, wherein the first PC wall panel is installed in the open space of the reinforced concrete frame so that the horizontal part and the vertical part are in close contact with the bottom surface and one side surface of the open space of the reinforced concrete frame.
The reinforced concrete frame according to any one of claims 1 to 3, wherein the horizontal and vertical portions are provided in the open space of the reinforced concrete frame so as to be in close contact with the bottom and other side surfaces of the open space of the reinforced concrete frame, 2 PC wall panels;
An anchor member inserted into the vertical coupling hole and the horizontal coupling hole and fixed to the reinforced concrete frame;
A grouting material filled in the remaining space of the vertical coupling hole and the horizontal coupling hole; And
Wherein a space between the free end of the horizontal part constituting the first PC wall panel and the free end of the horizontal part constituting the second PC wall panel and the space between the free end of the horizontal part and the vertical part of the first PC wall panel and the second PC wall panel And a concrete finishing material poured into the space between the free end and the reinforced concrete frame.
The method according to claim 4 or 5,
Wherein a plurality of connecting members embedded in the concrete finishing material are formed on the free ends of the horizontal portion and the vertical portion and the reinforced concrete frame to protrude from the concrete finishing material.
The method according to claim 4 or 5,
Wherein the anchor member is formed in such a shape that the cross-sectional area of the reinforcing frame is expanded at at least one point along the longitudinal direction.
A method of constructing a reinforced concrete frame seismic reinforcing structure according to claim 4,
Removing the window and masonry installed on the reinforced concrete frame to form an open space;
Installing a plurality of connecting members in the reinforced concrete frame;
Installing the PC wall panel in the open space of the reinforced concrete frame by lifting up the PC wall panel so that a plurality of connecting members protrude from the free end of the horizontal part and the vertical part;
Forming an anchor hole in the reinforced concrete frame by inserting a drilling drill into the vertical coupling hole and the horizontal coupling hole;
Inserting the anchor member into the vertical coupling hole and the horizontal coupling hole and coupling the anchor hole to the anchor hole;
Filling the vertical coupling hole and the horizontal coupling hole with a grouting material; And
And placing the concrete finishing material in a space between the free end of the horizontal part and the vertical part and the reinforced concrete frame.
A method of constructing a reinforced concrete frame seismic reinforcement structure according to claim 5,
Removing the window and masonry installed on the reinforced concrete frame to form an open space;
Installing a plurality of connecting members in the reinforced concrete frame;
Installing the first PC wall panel and the second wall panel in the open space of the reinforced concrete frame so that a plurality of connecting members protrude from the free end of the horizontal part and the vertical part;
Forming an anchor hole in the reinforced concrete frame by inserting a drilling drill into the vertical coupling hole and the horizontal coupling hole;
Inserting the anchor member into the vertical coupling hole and the horizontal coupling hole and coupling the anchor hole to the anchor hole;
Filling the vertical coupling hole and the horizontal coupling hole with a grouting material; And
Wherein a space between the free end of the horizontal part constituting the first PC wall panel and the free end of the horizontal part constituting the second PC wall panel and the space between the free end of the horizontal part and the vertical part of the first PC wall panel and the second PC wall panel And placing the concrete finishing material in a space between the free end and the reinforced concrete frame.
10. The method according to claim 8 or 9,
After the step of installing the PC wall panel,
Further comprising injecting a sealing material between the PC wall panel and the reinforced concrete frame so that no clearance is generated in a portion of the PC wall panel that is in close contact with the reinforced concrete frame,
Wherein the vertical joint hole and the end of the horizontal joint hole, which are in contact with the bottom surface or the side surface of the open space of the reinforced concrete frame, are provided with blocking material.
10. The method according to claim 8 or 9,
The step of installing the PC wall panel
And bonding the connecting member of the reinforced concrete frame and the connecting member of the horizontal portion and the vertical portion to the auxiliary member so as to support the PC wall panel with respect to the reinforced concrete frame, .
10. The method according to claim 8 or 9,
The step of installing the PC wall panel
Mounting a plurality of shear reinforcing bars on a free end of the vertical portion in a shape that encloses a side surface of the connecting member of the vertical portion,
Placing the PC wall panel up in the open space of the reinforced concrete frame and
And adjusting the installation position of each of the shear reinforcing bars so that adjacent shear reinforcing bars are spaced apart from each other.
10. The method according to claim 8 or 9,
Wherein the PC wall panel is provided with a pair of eyelets on both side surfaces of the horizontal portion and both side surfaces of the vertical portion,
Wherein the step of installing the PC wall panel comprises lifting up the PC wall panel by connecting a pair of brackets to both sides of the horizontal part and the other side of the vertical part.

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