KR101713284B1 - 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

The present invention relates to a precast (PC) wall panel for aseismic reinforcement of a reinforced concrete frame. The PC wall panel can obtain the maximum open area by naturally forming an opening for a window, be easily coupled to a conventional reinforced concrete frame, and maximize the aseismic performance through efficient stress transmission. The present invention also relates to an aseismic reinforcement structure for the reinforced concrete frame using the PC wall panel and a construction method thereof. According to the present invention, the PC wall panel for the aseismic reinforcement of the reinforced concrete frame is installed in the reinforced concrete frame configured to include reinforced concrete columns and beams for aseismic reinforcement. The PC wall panel, which forms an L-shape as a whole, includes: a horizontal unit which is for making the PC wall panel adhered and coupled to the upper part of the inner lower surface of the reinforced concrete frame; and a vertical unit which is extended to the upper part of an end of the horizontal unit and is coupled to the inner surface of a side column in the reinforced concrete frame. The horizontal and vertical units have multiple vertical and horizontal through coupling holes individually formed in vertical and horizontal directions to insert anchor members therein.

Description

{Seismic retrofit PC wall panel for RC frame, Seismic retrofit structure of RC frame using PC wall panel and construction method}

The present invention relates to a reinforced concrete frame for earthquake-resistant reinforcement, 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. , The reinforced concrete frame seismic reinforcement structure using 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.

Accordingly, as shown in Fig. 1, a reinforcing method of bracing a column-beam frame with a steel plate or the like has been developed. However, such detail is that the joint between the stiffener and the column-beam frame is weakened and the performance is poor, and there is a problem that the usability is deteriorated due to the interference of the reinforcement and the window due to the lack of openness.

The applicant of the present application has found that the PC member 1 shown in FIG. 2 can be used to secure a sufficient open area, and can be used as a remodeling earthquake-proof structure utilizing a PC member for a post-reinforced concrete beam- (Japanese Patent Application No. 10-1346814) filed a patent application for a reinforced joint structure and a construction remodeling construction method using the same.

The PC member 1 shown in Fig. 2 is joined to the side of the steel panel member 9 for joining the PC member 1 to the column or beam.

Thus, the steel panel member 9 is coupled to the column or the beam by the anchor member, thereby connecting the PC member 1 to the column-beam frame.

However, the registration technique is indirectly coupled by the steel panel member 9, not by the PC member 1, which is a stiffener, directly coupled to the post-beam frame.

Therefore, there is a problem that the seismic performance is deteriorated when the steel panel member 9 is deformed or damaged. In addition, since the steel panel member 9 protrudes outside the PC member 1, it is inefficient in terms of transportation and loading efficiency of the PC member 1, and the steel panel member 9, which is a steel member, And a separate treatment for corrosion prevention is required.

In order to solve the above problems, the present invention provides a reinforced concrete frame seismic reinforcing PC wall panel that naturally forms openings to ensure maximum open area and can be easily combined with existing reinforced concrete frames, reinforced concrete Frame anti-seismic reinforcement structure and its construction method.

The present invention relates to a reinforced concrete frame seismic reinforcing structure for reinforcing a reinforced concrete frame seismic reinforcement having no protrusions outside a PC wall panel, which is excellent in transportation and loading efficiency, and a method of constructing the reinforced concrete frame seismic reinforcing structure using a PC wall panel.

The present invention relates to a PC wall panel for seismic reinforcing, a PC wall panel, and a reinforced concrete frame seismic reinforcing structure using the PC wall panel. .

According to a preferred embodiment of the present invention, there is provided a PC wall panel installed inside a reinforced concrete frame composed of a reinforced concrete column and a beam to reinforce the reinforced concrete frame, the reinforced concrete frame having a horizontal portion ; And a vertical part extended from one end of the horizontal part and joined to the inner side surface of one side of the inside of the reinforced concrete frame. Wherein the horizontal portion and the vertical portion are formed with a plurality of vertical coupling holes and horizontal coupling holes penetrating in the vertical direction and the horizontal direction respectively for inserting the anchor members, To provide a PC wall panel.

According to another preferred embodiment of the present invention, there is provided a PC wall panel for reinforcing a seismic reinforced concrete frame, wherein a plurality of connecting members protrude from the upper end of the vertical portion and the other end of the horizontal portion.

According to another preferred embodiment of the present invention, there is provided a PC wall panel for seismic retrofitting of reinforced concrete frames, characterized in that a blocking material is provided at the lower end of the vertical coupling hole and at the outer end of the horizontal coupling hole.

According to another preferred embodiment of the present invention, there is provided a reinforced concrete frame comprising a reinforced concrete column and a beam; Wherein the PC wall panel is installed inside the reinforced concrete frame such that the lower surface of the horizontal portion is in close contact with the bottom surface of the reinforced concrete frame and the outer end of the vertical portion is in close contact with the inner surface of the one column. An anchor member inserted and fixed at one side of a bottom surface and a column of the reinforced concrete frame through the vertical coupling hole and the horizontal coupling hole; A grouting material filled in the vertical coupling hole and the horizontal coupling hole; And a finishing concrete laid in a space between the other end of the horizontal portion and the other column and between the upper end of the vertical portion and the lower portion of the beam; The present invention provides a reinforced concrete frame seismic reinforcing structure using a PC wall panel.

According to another preferred embodiment of the present invention, a plurality of connecting members embedded in the finishing concrete protrude from the upper end of the vertical portion, the other end of the horizontal portion, the lower inner side surface of the other column, The present invention provides a reinforced concrete frame seismic reinforcing structure using a wall panel.

According to another preferred embodiment of the present invention, there is provided a reinforced concrete frame comprising a reinforced concrete column and a beam; The reinforcing concrete frame is provided with a pair of symmetrically arranged lower surfaces of the reinforcing concrete frame so that the lower surface of the reinforcing concrete frame is in close contact with the bottom surface of the reinforced concrete frame and one end of the vertical portion is in close contact with the inner surfaces of the one pillar and the other pillar, Said PC wall panel comprising: An anchor member inserted into and fixed to the bottom of the reinforced concrete frame through the vertical coupling hole and the horizontal coupling hole; A grouting material filled in the vertical coupling hole and the horizontal coupling hole; And a concrete paved in a space between the other end of the horizontal part of the pair of PC wall panels and a space between the upper part of the vertical part and the lower part of the beam; The present invention provides a reinforced concrete frame seismic reinforcing structure using a PC wall panel.

According to another preferred embodiment of the present invention, a connecting member embedded in the finishing concrete protrudes from both ends of the other end of the horizontal portion, the upper end of the vertical portion and the lower portion of the beam. Lt; / RTI >

According to another preferred embodiment of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel, the method comprising the steps of: (a) installing a window and a masonry barrel in a reinforced concrete frame, Demolishing; (b) forming an anchor hole on one side of the lower surface of the beam and fixing a plurality of shear connectors to the anchor hole, forming an anchor hole in an inner bottom surface of the other column and fixing the ends of the plurality of hoop ropes; (c) installing the PC wall panel so that the lower surface of the horizontal portion is in contact with the bottom surface of the reinforced concrete frame inside the reinforced concrete frame, and the outer end of the vertical portion is in close contact with the inner surface of the pillar; (d) drilling anchor holes in the bottom surface of the reinforced concrete frame and one side of the column through the vertical coupling hole and the horizontal coupling hole using a drilling drill; (e) inserting and fixing an anchor member into the anchor hole through the vertical coupling hole and the horizontal coupling hole; (f) filling a grouting material in the vertical coupling hole and the horizontal coupling hole; And (g) placing the finished concrete in a space between the other end of the horizontal part and the other column, and between the upper end of the vertical part and the lower part of the beam; The present invention provides a method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel.

According to another preferred embodiment of the present invention, there is provided a method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel, the method comprising the steps of: (a) installing a window and a masonry barrel in a reinforced concrete frame, Demolishing; (b) forming anchor holes on both sides of the beam and fixing a plurality of shear connectors to the anchor holes; (c) The pair of PC wall panels are poured into the reinforced concrete frame so that the lower surface of the horizontal portion is in close contact with the bottom surface of the reinforced concrete frame, and the outer ends of the vertical portions are in close contact with the inner surfaces of the one column and the other column Installing; (d) drilling anchor holes on one side and the other side of the bottom surface and the column of the reinforced concrete frame through the vertical coupling hole and the horizontal coupling hole using a drilling drill; (e) inserting and fixing an anchor member into the anchor hole through the vertical coupling hole and the horizontal coupling hole; (f) filling a grouting material in the vertical coupling hole and the horizontal coupling hole; And (g) placing the finished concrete in a space between the other end of the horizontal part of the pair of PC wall panels and the lower part of the upper part of the vertical part and the lower part of the beam; The present invention provides a method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel.

According to another preferred embodiment of the present invention, the sealing material is sealed between the bottom surface of the horizontal part and the bottom surface of the reinforced concrete frame, and the side surface of the vertical part and the column before the anchor hole is punctured in step (d) The present invention provides a method of constructing a reinforced concrete frame seismic reinforcing structure.

The present invention has the following effects.

First, by inserting the anchor members into the vertical coupling holes and the horizontal coupling holes respectively formed in the horizontal and vertical portions of the PC wall panel, the PC wall panels are directly fixed to the existing reinforced concrete frames, and the existing reinforced concrete frames are seismically reinforced And the stress transfer efficiency is excellent.

Secondly, since the L-shaped PC wall panel constituted by the horizontal part and the vertical part can be individually or in pairs arranged in a U-shape so as to be symmetrical to each other, it is possible to naturally form the opening part to maximize the open area.

Third, since there is no part protruding outside the PC wall panel, the transportation and loading efficiency is excellent.

Fourth, since there is no steel part exposed to the outside of the PC wall panel, a separate treatment for refractory and corrosion prevention is unnecessary.

1 is a perspective view of a frame reinforced by conventional bracing;
2 is a perspective view of a conventional PC member for seismic retrofitting.
3 is a perspective view illustrating a PC wall panel for reinforcing a reinforced concrete frame according to the present invention.
4 is a cross-sectional perspective view showing details of a vertical coupling hole or a horizontal coupling hole;
5 is a perspective view showing an embodiment of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention.
6 is a cross-sectional view showing a drill bit inserted in a vertical coupling hole;
7 is a plan view showing a coupling relationship between the other column and the horizontal portion.
8 is a front view showing a coupling relationship between the beam and the vertical portion;
9 is a perspective view showing an embodiment of a reinforced concrete frame seismic reinforcing structure after finishing concrete pouring.
10 is a perspective view showing a method for lifting a PC wall panel according to the present invention.
11 is a perspective view showing another embodiment of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention.
12 is a front view showing another embodiment of a reinforced concrete frame seismic reinforcing structure after finishing concrete pouring;
13 is a perspective view showing a reinforced concrete frame in which an exterior finish is completed;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

3 is a perspective view showing a PC wall panel for reinforcing a reinforced concrete frame according to the present invention.

3, the reinforced concrete frame PC wall panel for seismic retrofitting according to the present invention is installed in a reinforced concrete frame 1 composed of a reinforced concrete column 11 and a beam 12, A wall panel (2), comprising: a horizontal part (21) to be brought into close contact with an upper part of an inner bottom surface of the reinforced concrete frame (1); And a vertical part 22 formed to extend from one end of the horizontal part 21 and to be brought into close contact with an inner side surface of the one column 11 inside the reinforced concrete frame 1; And the horizontal part 21 and the vertical part 22 have a plurality of vertical coupling holes 211 penetrating in the vertical and horizontal directions for inserting the anchor member 3, And a coupling hole 221 is formed.

The reinforced concrete frame PC wall panel for reinforcing seismic reinforcement according to the present invention is constructed such that the PC wall panel 2 is divided into a horizontal part 21 and a vertical part 22 to form an L shape as a whole, Respectively.

The horizontal wall 21 of the PC wall panel 2 is tightly coupled to the bottom surface of the reinforced concrete frame 1 and the vertical wall 22 is tightly coupled to the inner surface of the column 11.

At this time, the bottom surface of the reinforced concrete frame 1 may be the base upper surface in the case of the lowermost layer and the beam 12 in the case of two or more layers.

A plurality of vertical coupling holes 211 and horizontal coupling holes 221 are formed in the horizontal portion 21 and the vertical portion 22, respectively.

The anchor member 3 is fixed to the existing column 11 or the beam 12 through the vertical coupling hole 211 and the horizontal coupling hole 221 previously formed in the PC wall panel 2 to form a PC wall The panel 2 can be fixed to the reinforced concrete frame 1.

Therefore, a separate joining member protruding outside the PC wall panel 2 is not required for fixing the PC wall panel 2 to the existing reinforced concrete frame 1 and the PC wall panel 2 2 is directly coupled to the reinforced concrete frame 1, the stress transmission efficiency is excellent.

The vertical coupling hole 211 and the horizontal coupling hole 221 may be formed by various embodiments. For example, the vertical coupling hole 211 and the horizontal coupling hole 221 may be formed by embedding a styrofoam or a PVC pipe.

The materials to be buried in order to form the vertical coupling hole 211 and the horizontal coupling hole 221 are formed such that the grouting material 4 filled in the vertical coupling hole 211 and the horizontal coupling hole 221 is inserted into the PC wall panel 2 ) And strengthening the adhesive force so as to be unified.

Particularly, when the vertical coupling hole 211 and the horizontal coupling hole 221 are formed by using the PVC pipe, it is easy to adjust the horizontal degree of the PC wall panel 2 according to the length of the PVC pipe. In addition, when the PC wall panel 2 is poured with concrete and the PVC pipe is pulled out before the concrete is fully cured, the vertical coupling hole 211 and the horizontal coupling hole 221 are completely formed, The inner circumferential surface of the coupling hole 211 and the horizontal coupling hole 221 and the grouting material 4 can be integrated.

The PC wall panel 2 can be installed inside the reinforced concrete frame 1 and can be reinforced in an L shape. As shown in FIG. 11 and the like to be described later, the PC wall panel 2 has two L- It is also possible to reinforce the structure by symmetrically installing the PC wall panel 2 in a U-shape.

As described above, when the reinforced concrete frame 1 is reinforced by using the PC wall panel 2 of the present invention, openings for windows and the like are formed naturally so that the existing reinforced concrete frame 1 It can be easily combined and maximize seismic performance with efficient stress transmission.

In addition, since the PC wall panel 2 has no protruding parts, it has excellent transporting and loading efficiency, and is made of a PC member, so that separate processing for refracting and corrosion prevention is unnecessary.

A plurality of connecting members 23 and 24 may protrude from the upper end of the vertical part 22 and the other end of the horizontal part 21.

In order to insert the PC wall panel 2 into the inside of the reinforced concrete frame 1, a proper amount of clearance is required.

The horizontal length and the vertical length of the PC wall panel 2 are set to be smaller than the width and height of the inside of the reinforced concrete frame 1 and the other end of the horizontal portion 21 and the upper portion of the vertical portion 22, (23, 24) for integration with the main body (1).

When the PC wall panel 2 is installed using the connecting members 23 and 24, it is possible to easily cope with various sizes of the existing reinforced concrete frame 1 and facilitate integration with the existing reinforced concrete frame 1 .

The connecting members 23 and 24 may have various embodiments. 3, a connecting member 23 in the form of a hoop is coupled to the other end of the horizontal portion 21 and a connecting member 24 in the form of a shear connection member is coupled to the upper end of the vertical portion 22. [

4 is a cross-sectional perspective view showing details of a vertical coupling hole or a horizontal coupling hole.

4A to 4B, a blocking material 25 may be provided at the lower end of the vertical coupling hole 211 and at the outer end of the horizontal coupling hole 221.

After the PC wall panel 2 is installed, the PC wall panel 2 cuts off the clearance at a portion of the PC wall panel 2 contacting the reinforced concrete frame 1, and foreign matter generated when the anchor hole 121 is pierced, It is possible to fill the space between the PC wall panel 2 and the reinforced concrete frame 1 with the sealing material S in order to prevent penetration between the reinforcing frame 2 and the reinforced concrete frame 1. [

A sealing material 25 is provided at the lower end of the vertical coupling hole 211 and at the outer end of the horizontal coupling hole 221 so that the sealing material S is inserted into the vertical coupling hole 211 and the horizontal coupling hole 221 So that it is prevented from being influxed.

The blocking material 25 may be a dry pack, which is a mortar of a kneaded material made of an elastic material such as a backup material.

4 (b), when the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221 are sealed with a dry pack or the like, the vertical coupling hole 211 or the horizontal coupling hole 221, The stepped portions 212 and 222 can be formed to have a predetermined length so as to narrow the entrance of the stepped portion.

In this case, it is easier to seal the vertical coupling hole 211 and the horizontal coupling hole 221.

After the filling and curing of the sealing material S proceeds, the drill 6 is used to connect the anchor member 3 to the reinforced concrete frame 1 through the vertical coupling hole 211 or the horizontal coupling hole 221 When the anchor hole 121 is drilled, the percutaneously engaging member 25 is punctured and removed.

FIG. 5 is a perspective view showing an embodiment of a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention, and FIG. 6 is a sectional view showing a drill bit inserted into a vertical coupling hole.

5, 9, and the like, the reinforced concrete frame seismic reinforcing structure using the PC wall panel of the present invention includes a reinforced concrete frame 1 composed of a reinforced concrete column 11 and a beam 12; The lower surface of the horizontal portion 21 is brought into close contact with the bottom surface of the reinforced concrete frame 1 and the outer end of the vertical portion 22 is brought into close contact with the inner surface of the one column 11 Said PC wall panel (2) being installed; An anchor member 3 inserted into and fixed to one side of the bottom surface of the reinforced concrete frame 1 and the column 11 through the vertical coupling hole 211 and the horizontal coupling hole 221; A grouting material (4) filled in the vertical coupling hole (211) and the horizontal coupling hole (221); And a finished concrete 5 placed in a space between the other end of the horizontal part 21 and the other column 11 and between the upper end of the vertical part 22 and the lower part of the beam 12; . ≪ / RTI >

This is an embodiment for reinforcing the reinforced concrete frame 1 with one L-shaped PC wall panel 2.

The PC wall panel 2 has a plurality of connecting members 23 and 24 protruding from the upper end of the vertical portion 22 and the other end of the horizontal portion 21 for coupling with the beam 12 and the column 11 .

A sealant S can be filled between the PC wall panel 2 and the reinforced concrete frame 1. A sealing material S can be filled between the PC wall panel 2 and the reinforced concrete frame 1, So as to prevent the sealing material S from flowing into the vertical coupling hole 211 and the horizontal coupling hole 221.

The anchor member 3 passes through the vertical coupling hole 211 and the horizontal coupling hole 221 and is inserted into one side of the bottom surface of the reinforced concrete frame 1 and the column 11 to be fixed thereto.

That is, after the PC wall panel 2 is installed in the reinforced concrete frame 1, the reinforcing concrete frame 1 is inserted by inserting the anchor member 3 through the vertical coupling hole 211 and the horizontal coupling hole 221, The PC wall panel 2 can be settled (Fig. 5).

At this time, since the opening is formed on the upper part of the PC wall panel 2, it is easy for the operator to secure a sufficient work space and to easily insert the anchor member 3 into the vertical coupling hole 211 or the horizontal coupling hole 221 You can proceed.

The grouting material 4 is filled in the vertical coupling hole 211 and the horizontal coupling hole 221.

The grouting material 4 may grout the anchor liquid injected into the anchor hole 121 or may be a non-shrinkable mortar or the like. When the grouting material 4 is charged, the PC wall panel 2 and the reinforcing concrete The frame 1 can be integrally joined.

The finished concrete 5 is installed in the space between the other end of the horizontal portion 21 and the other column 11 and between the upper end of the vertical portion 22 and the lower portion of the beam 12 (FIG.

Meanwhile, the anchor holes 121 are formed in the reinforced concrete frame 1 in order to engage the anchor members 3.

6, an anchor hole 121 may be formed in the reinforced concrete frame 1 by inserting the drill bit of the drill 6 into the vertical coupling hole 211 or the horizontal coupling hole 221.

Accordingly, the anchor member 3 is inserted into the anchor hole 121 formed at one end of the reinforced concrete frame 1 and fixed thereon.

The anchor member 3 is inserted into the anchor hole 121 and then the anchor member 3 is inserted into the anchor hole 121 so that the anchor member 3 is inserted into the PC wall panel 2, And the reinforced concrete frame 1 can be firmly fixed to each other.

In addition, as described above, the perforation material 25 located at the ends of the vertical coupling hole 211 and the horizontal coupling hole 221 is removed during the drilling operation for forming the anchor hole 121.

Fig. 7 is a plan view showing the coupling relation between the other column and the horizontal portion, and Fig. 8 is a front view showing the coupling relationship between the beam and the vertical portion.

7 and 8, the upper end of the vertical portion 22, the other end of the horizontal portion 21, the lower inner side surface of the other column 11, and the lower portion of the beam 12, And a plurality of connecting members 13, 14, 23, 24 embedded in the first and second connecting members 5, 5 are protruded.

7, the connecting members 13 and 23 protrude from the other end of the horizontal portion 21 and the lower inner surface of the other column 11, respectively.

7, when the connecting member 23 coupled to the horizontal portion 21 of the PC wall panel 2 is a hoop frame, the connecting member 13, which is coupled to the other column 11, .

The connecting members 13 and 23 may be arranged so as to overlap each other by a certain area, and a vertical reinforcing bar 15 may be additionally disposed at a portion where the hoop ropes are overlapped.

In FIG. 8, connecting members 14 and 24 in the form of shear connection members protrude from the upper end of the vertical part 22 and one side of the lower part of the beam 12, respectively.

It is preferable that the shear connection members are staggered so as not to overlap each other.

The connecting members 13 and 14 provided on the column 11 and the beam 12 are formed by drilling anchor holes on the side of the column 11 and the lower portion of the beam 12 to inject the anchor liquid, And the connecting members 23 and 24 provided in the PC wall panel 2 are pre-embedded in the concrete when the PC wall panel 2 is manufactured.

9 is a perspective view showing an embodiment of a reinforced concrete frame seismic reinforcing structure after finishing concrete pouring.

9 shows an embodiment in which the reinforced concrete frame 1 is reinforced with one L-shaped PC wall panel 2, And after the finishing concrete 5 is laid in a space between the bottom of the beam 12 and the lower part of the beam 12, as shown in Fig.

5, 9, and the like, a method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel will be described.

In the method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention, it is necessary to (a) remove windows and masonry built in a reinforced concrete frame (1) composed of a reinforced concrete column (11) do.

(B) Anchor holes are formed on one side of the lower surface of the beam 12, and a plurality of shear connectors are fixed to the anchor holes. Anchor holes are formed in the lower side of the inner side surface of the other column 11, Lt; / RTI >

The shear connection member and the hoop frame are connecting members 13 and 14 for integrating the reinforced concrete frame 1 and the PC wall panel 2 together.

One end of the shear connector and the hoop root are fixed to the inside of the beam 12 and the column 11 and the other ends of the shear connector and the hoop root protrude to the outside of the beam 12 and the column 11, The reinforcing concrete frame 1 and the PC wall panel 2 are integrated together with the shear connection members and the hoop rods which are the connecting members 23 and 24.

Next, (c) the lower surface of the horizontal portion 21 is brought into close contact with the bottom surface of the reinforced concrete frame 1 in the inside of the reinforced concrete frame 1, and the vertical portion 22 Is provided so as to be in close contact with the inner surface of the one side post 11.

A sealant S can be filled between the PC wall panel 2 and the reinforced concrete frame 1. A sealing material S can be filled between the PC wall panel 2 and the reinforced concrete frame 1, May be provided.

(D) An anchor hole 121 is drilled in the bottom surface of the reinforced concrete frame 1 and one side of the column 11 through the vertical coupling hole 211 and the horizontal coupling hole 221 using a drilling drill Next, (e) the anchor member 3 is inserted into the anchor hole 121 through the vertical coupling hole 211 and the horizontal coupling hole 221 and is fixed.

In the step (d), the sealing material S is sandwiched between the lower surface of the horizontal part 21 and the bottom surface of the reinforced concrete frame 1 and between the vertical part 22 and the side surface of the column 11, The space between the PC wall panel 2 and the reinforced concrete frame 1 can be blocked.

Thereafter, (f) grouting material 4 is filled in the vertical coupling hole 211 and the horizontal coupling hole 221.

Lastly, (g) the finishing concrete 5 is placed and cured in the space between the other end of the horizontal part 21 and the other column 11, and between the upper part of the vertical part 22 and the lower part of the beam 12 Finish construction.

10 is a perspective view showing a method for lifting the PC wall panel of the present invention.

In the step (c), the PC wall panel 2 is installed inside the reinforced concrete frame 1 by using the PC wall panel 2.

As shown in FIG. 10, the PC wall panel 2 is connected to the horizontal portion 21 of the one side surface and the vertical portion 22 of the other side, So that it can be installed easily and can be installed easily.

A wire coupling hole may be formed in the horizontal part 21 on one side and a vertical part 22 on the other side in the PC wall panel 2 to connect the pair of wires.

FIG. 11 is a perspective view showing another embodiment of the reinforced concrete frame seismic reinforcing structure using the PC wall panel of the present invention, and FIG. 12 is a front view showing another embodiment of the reinforced concrete frame seismic reinforcing structure after the finishing concrete is laid.

11 and 12, a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention comprises a reinforced concrete frame 1 composed of a reinforced concrete column 11 and a beam 12; The lower surfaces of the horizontal portions 21 and 21 'are brought into close contact with the bottom surface of the reinforced concrete frame 1 in the inside of the reinforced concrete frame 1 and the lower surfaces of the vertical portions 22 and 22' The PC wall panels (2, 2 ') having a generally U-shaped cross-section so as to be in close contact with the inner surfaces of the first column (11) and the second column (11); An anchor member 3 inserted into and fixed to the bottom of the reinforced concrete frame 1 and the column 11 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221'; A grouting material 4 filled in the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221'; And between the other ends of the horizontal portions 21 and 21 'of the pair of PC wall panels 2 and 2' and between the upper ends of the vertical portions 22 and 22 'and the lower portion of the beam 12 Concrete 5; . ≪ / RTI >

This is an embodiment in which a pair of L-shaped PC wall panels 2, 2 'are symmetrically arranged to reinforce the reinforced concrete frame 1 in a U-shape.

The PC wall panels 2 and 2 'are connected to the upper ends of the vertical portions 22 and 22' and the other ends of the horizontal portions 21 and 21 'for connection with the beams 12 and 11, The members 23, 24, and 24 'are protruded.

In the above embodiment, the structures of the anchor member 3, the grouting material 4, and the like are the same as those of the reinforced concrete frame seismic reinforcing structure using the PC wall panel described above with reference to Figs.

However, there is a difference in that a pair of PC wall panels 2, 2 'are provided symmetrically with respect to each other so as to closely contact the bottom surface of the reinforced concrete frame 1 and the columns 11 on both sides to form a U-shape as a whole.

Accordingly, even when the size of the reinforced concrete frame 1 is large, an opening can be formed at the upper center of the PC wall panels 2, 2 'while sufficiently reinforcing the reinforced concrete frame 1. [ Therefore, the worker easily inserts the anchor member 3 into the vertical coupling holes 211 and 211 'or the horizontal coupling holes 221 and 221' through securing a sufficient work space, The wall panels 2, 2 'can be fixed.

The outer surfaces of the vertical portions 22 and 22 'of the pair of PC wall panels 2 and 2' are brought into close contact with the inner side surfaces of the one column 11 and the other column 11, , 21 ') is placed in the space between the first and second openings (21, 21').

The construction error between the adjacent horizontal portions 21 and 21 'can be absorbed by the finishing concrete 5 placed in the space between the neighboring horizontal portions 21 and 21'.

Of course, the finished concrete 5 is also installed in the space between the upper end of the vertical portions 22 and 22 'and the lower portion of the beam 12 to integrate the PC wall panels 2 and 2' and the reinforced concrete frame 1 (Fig. 12).

The connecting members 14, 23, 24 and 24 'are embedded in the finished concrete 5 at both ends of the horizontal portions 21 and 21', at the upper ends of the vertical portions 22 and 22 ' As shown in Fig.

Specifically, as shown in FIG. 11, in order to integrate the neighboring PC wall panels 2 and 2 ', the hoop rods of the connecting member 23 are inserted into the end portions of the horizontal portions 21 and 21' can do. A vertical reinforcing bar 15 may be further disposed at a portion where the hoop rope overlaps.

The connecting members 14, 24 and 24 'in the form of shear connectors may protrude from both the upper ends of the vertical portions 22 and 22' and the lower portions of the beam 12, respectively.

A method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel will be described with reference to FIGS. 11 and 12. FIG.

In the method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel according to the present invention, it is necessary to (a) remove windows and masonry built in a reinforced concrete frame (1) composed of a reinforced concrete column (11) do.

And (b) anchor holes are formed on both sides of the lower surface of the beam 12, and a plurality of shear connectors are fixed to the anchor holes.

The shear connection member is a connecting member 14 for integrating the reinforced concrete frame 1 and the PC wall panels 2, 2 '.

The shear connection member is a shear connection member having one end fixed to the beam 12 and the other end projecting to the lower portion of the beam 12 and being connected to the outside of the PC wall panels 2 and 2 ' Together, the reinforced concrete frame 1 and the PC wall panels 2, 2 'are integrated.

Next, (c) the pair of PC wall panels 2 and 2 'are respectively lifted, and the lower surfaces of the horizontal portions 21 and 21' are inserted into the reinforced concrete frame 1, And the outer ends of the vertical portions 22 and 22 'are in close contact with the inner surfaces of the one column 11 and the other column 11, respectively.

The sealing material S may be filled between the PC wall panels 2 and 2 'and the reinforced concrete frame 1 and the lower part of the vertical coupling holes 211 and 211' of the horizontal parts 21 and 21 ' The blocking members 25 may be provided at the outer ends of the horizontal coupling holes 221 and 221 'of the vertical portions 22 and 22'.

(D) a bottom hole of the reinforced concrete frame 1 and one side and the other side of the column 11 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221' The anchor member 121 is inserted into the anchor hole 121 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221' do.

As in the case of the method of constructing the seismic reinforcing structure shown in FIGS. 5 and 9, in the step (d), the lower surface of the horizontal portions 21 and 21 'and the lower surface of the reinforced concrete frame 1 before the anchor holes 121 are perforated, The sealing material S is sealed between the bottom surfaces of the vertical walls 22 and 22 'and the side surfaces of the columns 11 to block the space between the PC wall panels 2 and 2' and the reinforced concrete frame 1 .

Then, (f) grouting material 4 is filled in the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221'.

(G) between the other ends of the horizontal portions 21 and 21 'of the pair of PC wall panels 2 and 2' and between the upper ends of the vertical portions 22 and 22 'and the lower portion of the beam 12 Put the finishing concrete (5) in space and cure it to finish the construction.

FIG. 13 is a perspective view showing a reinforced concrete frame with an outer finish completed. FIG.

13, after the concrete 5 is laid between the PC wall panel 2 and the reinforced concrete frame 1 as shown in Figs. 9 and 12, the PC wall panel 2 and the reinforced concrete frame 1, The window 8 can be coupled to the opening formed by the window 8.

In addition, a wall tile 7 is attached to the outside of the PC wall panel 2 and the finished concrete 5 to complete the finishing work.

1: Reinforced Concrete Frame 11: Column
12: beam 121: anchor hole
13, 14: connecting member 15: vertical reinforcement
2, 2 ': PC wall panel 21, 21': horizontal part
211, 211 ': vertical coupling hole 212:
22, 22 ': vertical part 221, 221': horizontal joining hole
222: step portion 23, 24, 24 ': connecting member
25: blocking member 3: anchor member
4: Grouting material 5: Finishing concrete
6: Drill 7: Wall tile
8: window S: sealing material

Claims (10)

The present invention relates to a PC wall panel (2) installed inside a reinforced concrete frame (1) composed of a reinforced concrete column (11) and a beam (12)
A horizontal portion 21 to be tightly engaged with an upper portion of the inner bottom surface of the reinforced concrete frame 1; And
A vertical part 22 extended from one end of the horizontal part 21 and adapted to be brought into close contact with an inner side surface of the column 11 inside the reinforced concrete frame 1; And has an L shape as a whole,
The horizontal part 21 and the vertical part 22 are formed with a plurality of vertical coupling holes 211 and horizontal coupling holes 221 penetrating in the vertical direction and the horizontal direction respectively for insertion of the anchor member 3,
Wherein a perforated member (25) is provided at a lower portion of the vertical coupling hole (211) and at an outer end of the horizontal coupling hole (221).
The method of claim 1,
And a plurality of connecting members (23, 24) protruding from the upper end of the vertical part (22) and the other end of the horizontal part (21).
delete A reinforced concrete frame (1) composed of a reinforced concrete column (11) and a beam (12);
The bottom surface of the horizontal portion 21 is in close contact with the bottom surface of the reinforced concrete frame 1 and is extended to the upper portion of one end of the reinforced concrete frame 1, The horizontal part 21 and the vertical part 22 are formed in an L shape so that the outer end of the vertical part 22 formed is in close contact with the inner side surface of the one column 11, A plurality of vertical coupling holes 211 and horizontal coupling holes 221 penetrating in the vertical direction and the horizontal direction are formed for the upper portion of the vertical portion 22 and the plurality of connection portions A PC wall panel (2) provided so that the members (23, 24) protrude;
An anchor member 3 inserted into and fixed to one side of the bottom surface of the reinforced concrete frame 1 and the column 11 through the vertical coupling hole 211 and the horizontal coupling hole 221;
A grouting material (4) filled in the vertical coupling hole (211) and the horizontal coupling hole (221); And
A finished concrete 5 placed in a space between the other end of the horizontal part 21 and the other column 11 and between the upper end of the vertical part 22 and the lower part of the beam 12; Reinforced concrete frame frame structure using a PC wall panel.
5. The method of claim 4,
The other end of the vertical part 22 and the other end of the horizontal part 21 and the lower inner surface of the other column 11 and the lower part of the beam 12 are provided with a plurality of connecting members 13 , 14, 23, 24) protruding from the wall of the reinforced concrete frame.
A reinforced concrete frame (1) composed of a reinforced concrete column (11) and a beam (12);
A pair of horizontal portions 21 and 21 'are provided symmetrically with respect to the bottom surface of the reinforced concrete frame 1 so as to be seismically reinforced. One end of each of the vertical portions 22 and 22 'extended to one upper end of each of the horizontal portions 21 and 21' is provided so as to be in close contact with the inner side surfaces of the one column 11 and the other column 11, The horizontal portions 21 and 21 'and the vertical portions 22 and 22' have a plurality of vertical coupling holes 211 and 211 'penetrating in the vertical direction and the horizontal direction, respectively, for insertion of the anchor member 3 And a plurality of connecting members 23, 24 and 24 'are formed at the other ends of the upper ends of the vertical portions 22 and 22' and the horizontal portions 21 and 21 ', respectively. A PC wall panel (2, 2 ') provided so as to protrude therefrom;
An anchor member 3 inserted into and fixed to the bottom of the reinforced concrete frame 1 and the column 11 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221';
A grouting material 4 filled in the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221'; And
The concrete is laid in a space between the other ends of the horizontal portions 21 and 21 'of the pair of PC wall panels 2 and 2' and between the upper ends of the vertical portions 22 and 22 '(5); Reinforced concrete frame frame structure using a PC wall panel.
The method of claim 6,
The connecting members 14, 23 and 24 are embedded in the finished concrete 5 at both ends of the horizontal portions 21 and 21 'and at the upper ends of the vertical portions 22 and 22' Reinforced concrete frame with a reinforced concrete frame structure using a PC wall panel.
A method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel (2) according to claim 4,
(a) demolishing a window and a masonry installed inside a reinforced concrete frame (1) composed of a reinforced concrete column (11) and a beam (12);
(b) Anchor holes are formed on one side of the lower surface of the beam 12, and a plurality of shear connectors are fixed to the anchor holes. Anchor holes are formed in the lower side of the inner side of the other column 11, Fixing;
(c) The lower surface of the horizontal portion 21 is brought into close contact with the bottom surface of the reinforced concrete frame 1 in the inside of the reinforced concrete frame 1 while the PC wall panel 2 is being worn. (11) to be in close contact with the inner surface of the one column (11);
(d) drilling the anchor holes 121 in the bottom surface of the reinforced concrete frame 1 and one side of the columns 11 through the vertical coupling holes 211 and the horizontal coupling holes 221 by using a drilling drill ;
(e) inserting and fixing the anchor member 3 into the anchor hole 121 through the vertical coupling hole 211 and the horizontal coupling hole 221;
(f) filling the grouting material (4) in the vertical coupling hole (211) and the horizontal coupling hole (221); And
(g) placing finishing concrete (5) in a space between the other end of the horizontal part (21) and the other column (11) and between the upper end of the vertical part (22) and the lower part of the beam (12); Wherein the reinforced concrete frame is installed on the PC wall panel.
A method of constructing a reinforced concrete frame seismic reinforcing structure using a PC wall panel (2, 2 ') according to claim 6,
(a) demolishing a window and a masonry installed inside a reinforced concrete frame (1) composed of a reinforced concrete column (11) and a beam (12);
(b) forming anchor holes on both sides of the lower surface of the beam 12 and fixing a plurality of shear connectors to the anchor holes;
(c) The lower surfaces of the horizontal portions 21 and 21 'are closely contacted with the bottom surface of the reinforced concrete frame 1 in the inside of the reinforced concrete frame 1 by piling the PC wall panels 2 and 2' The outer ends of the vertical portions 22 and 22 'are in close contact with the inner surfaces of the first column 11 and the second column 11, respectively;
(d) Using a perforated drill, the bottom surface of the reinforced concrete frame 1 and the one side and the other side of the column 11 are connected to each other through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221' Drilling a hole (121);
(e) inserting the anchor member 3 into the anchor hole 121 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221' to fix the anchor member 3;
(f) filling the grouting material 4 in the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221'; And
(g) between the other ends of the horizontal portions 21 and 21 'of the pair of PC wall panels 2 and 2' and between the upper ends of the vertical portions 22 and 22 'and the lower portion of the beam 12 Casting the concrete (5); Wherein the reinforced concrete frame is installed on the PC wall panel.
10. The method according to claim 8 or 9,
The sealing material S is sandwiched between the bottom surface of the horizontal portion 21 and the bottom surface of the reinforced concrete frame 1 and the side surface of the column 11 before the perforation of the anchor hole 121 in the step (d) Wherein the reinforced concrete frame is installed on the wall of the building.

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