WO2018070634A1

WO2018070634A1 - Pc wall panel for reinforcing earthquake resistance of reinforced concrete frame, structure for reinforcing earthquake resistance of reinforced concrete frame by using pc wall panel, and method for constructing same

Info

Publication number: WO2018070634A1
Application number: PCT/KR2017/006181
Authority: WO
Inventors: 유승룡
Original assignee: 동국대학교 산학협력단
Priority date: 2016-10-10
Filing date: 2017-06-14
Publication date: 2018-04-19
Also published as: KR101713284B1; CN109937282A

Abstract

The present invention relates to a PC wall panel for reinforcing the earthquake resistance of a reinforced concrete frame, a structure for reinforcing the earthquake resistance of a reinforced concrete frame by using the PC wall panel, and a method for constructing same, wherein the PC wall panel ensures a maximum open area by naturally forming an opening for a door or window or the like, is easily coupled with an existing reinforced concrete frame, and can maximize earthquake resistance performance by efficient stress transfer.

Description

PC wall panel for seismic reinforcement of reinforced concrete frame, seismic reinforcement structure of reinforced concrete frame using PC wall panel and construction method

The present invention is naturally formed openings for windows and windows to secure the maximum open area while easy to combine with existing reinforced concrete frame, reinforced concrete frame seismic reinforcement PC wall panel can maximize the seismic performance by efficient stress transmission , Reinforced concrete frame seismic reinforcement structure using PC wall panel and construction method thereof.

Buildings built prior to 1988, when seismic design was introduced, or existing low-rise buildings that did not apply the seismic design codes, require seismic reinforcement.

In particular, as the number of earthquakes and the magnitude of recent earthquakes increase, earthquake-resistant reinforcement is urgently needed for public buildings such as school buildings.

Accordingly, as shown in FIG. 1, many reinforcing methods for reinforcing the pillar-beam frame with steel sheets or the like have been developed. However, such a detail has a problem in that the joint between the reinforcement and the beam-beam frame is weak and the seismic performance is reduced, and the usability is reduced due to the interference between the reinforcement and the window and the door (P 10-2012-0042237).

Accordingly, the present applicant can secure a sufficient opening area by using the PC member 1 shown in FIG. 2, and the seismic remodeling using the PC member for the old reinforced concrete beam-column structure having excellent reinforcement ability of the column-beam frame. It has been filed and registered the technology for the reinforcement joint structure and building remodeling construction method using the same (Patent No. 10-1346814).

In the PC member 1 shown in FIG. 2, a steel panel member 9 is coupled to a side surface in order to couple the PC member 1 to a column or beam.

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

However, the registration technique is indirectly coupled by the steel panel member 9, rather than the PC member 1, which is a reinforcing material, is not directly coupled with the column-beam frame.

Therefore, there is a problem that the seismic performance is reduced when the steel panel member 9 is deformed or damaged. In addition, since the steel panel member 9 protrudes to the outside of the PC member 1, it is inefficient in terms of transport and stacking efficiency of the PC member 1, and the fire resistant steel panel member 9 is exposed to the outside. And a separate treatment to prevent corrosion.

In order to solve the above problems, the present invention naturally forms an opening to secure the maximum open area, but is easy to be combined with the existing reinforced concrete frame, reinforced concrete frame seismic reinforcement PC wall panel, reinforced concrete using PC wall panel To provide a frame seismic reinforcement structure and its construction method.

The present invention is to provide a PC wall panel for reinforced concrete frame seismic reinforcement, a reinforced concrete frame seismic reinforcement structure using a PC wall panel having no protrusion outside the PC wall panel and excellent in transportation and loading efficiency, and a construction method thereof.

The present invention is a PC wall panel for reinforced concrete frame seismic reinforcement that does not require a separate treatment to prevent fire and corrosion because there is no steel part exposed to the outside of the PC wall panel, reinforced concrete frame seismic reinforcement structure using a PC wall panel and construction method thereof To provide.

The present invention according to a preferred embodiment relates to a PC wall panel installed in the interior of the reinforced concrete frame consisting of reinforced concrete pillars and beams to reinforce the seismic, horizontal portion for being coupled in close contact with the upper inner bottom of the reinforced concrete frame ; And a vertical portion extending from one end of the horizontal portion to be coupled to be in close contact with an inner surface of one pillar in the reinforced concrete frame. Reinforced concrete frame seismic reinforcement, characterized in that the overall L-shape, the horizontal portion and the vertical portion is a plurality of vertical coupling holes and horizontal coupling holes penetrated in the vertical and horizontal directions for insertion of the anchor member, respectively Provide PC wall panel.

The present invention according to another preferred embodiment provides a reinforced concrete frame seismic reinforcement PC wall panel, characterized in that a plurality of connecting members protrude from the upper end of the vertical portion and the other end of the horizontal portion.

The present invention according to another preferred embodiment provides a reinforced concrete frame seismic reinforcement PC wall panel, characterized in that the blocking material is provided at the lower end of the vertical coupling hole and the outer end of the horizontal coupling hole.

The present invention according to another preferred embodiment is a reinforced concrete frame composed of reinforced concrete columns and beams; The PC wall panel is installed so that the lower surface of the horizontal portion is in close contact with the bottom surface of the reinforced concrete frame, the outer end of the vertical portion is in close contact with the inner surface of one column in the reinforced concrete frame; An anchor member inserted into and fixed to one side of the bottom of the reinforced concrete frame and the column through the vertical coupling hole and the horizontal coupling hole; Grouting material filled in the vertical coupling hole and the horizontal coupling hole; And finishing concrete poured in a space between the other end of the horizontal portion and the other pillar and between the upper end of the vertical portion and the lower portion of the beam. It provides a reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that consisting of.

The present invention according to another preferred embodiment is characterized in that the PC is characterized in that a plurality of connecting members embedded in the finishing concrete is provided at the upper end of the vertical portion and the other end of the horizontal portion and the lower inner surface of the other pillar and the lower one side of the beam. Provides a reinforced concrete frame seismic reinforcement structure using wall panels.

The present invention according to another preferred embodiment is a reinforced concrete frame composed of reinforced concrete columns and beams; A pair is provided symmetrically with each other so that the lower surface of the horizontal portion is in close contact with the bottom surface of the reinforced concrete frame in the interior of the reinforced concrete frame, and one side end of the vertical portion is installed so as to be in close contact with the inner surface of the one side pillar and the other side of the overall U shape Forming the PC wall panel; An anchor member inserted into and fixed to the bottom of the reinforced concrete frame and the pillar through the vertical coupling hole and the horizontal coupling hole; Grouting material filled in the vertical coupling hole and the horizontal coupling hole; And finishing concrete poured in the space between the horizontal ends of the pair of PC wall panels and between the upper end of the vertical portion and the lower portion of the beam. It provides a reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that consisting of.

The present invention according to another preferred embodiment of the reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that the other end of the horizontal portion and the upper end of the vertical portion and the lower both sides of the beam is provided so that the connection member embedded in the finishing concrete is projected To provide.

The present invention according to another preferred embodiment relates to a method for constructing a reinforced concrete frame seismic reinforcement structure using the PC wall panel, (a) a window and masonry installed inside the reinforced concrete frame composed of reinforced concrete columns and beams Dismantling; (b) forming anchor holes in one side of the beam and fixing a plurality of shear connecting members in the anchor holes, while forming anchor holes in the lower inner side of the other pillar and fixing end portions of the hoop muscles; (c) lifting the PC wall panel to install the lower surface of the horizontal portion in close contact with the bottom surface of the reinforced concrete frame in the interior of the reinforced concrete frame, and the outer end of the vertical portion in close contact with the inner surface of one column; (d) drilling an anchor hole in each of the bottom of the reinforced concrete frame and one side of the pillar through the vertical coupling hole and the horizontal coupling hole using a drill drill; (e) inserting and anchoring the anchor member to the anchor hole through the vertical coupling hole and the horizontal coupling hole; (f) filling a grouting material into the vertical coupling hole and the horizontal coupling hole; And (g) placing finishing concrete in the space between the other end of the horizontal portion and the other pillar and between the upper end of the vertical portion and the lower portion of the beam; It provides a method of constructing a reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that comprising a.

The present invention according to another preferred embodiment relates to a method for constructing a reinforced concrete frame seismic reinforcement structure using the PC wall panel, (a) a window and masonry installed inside the reinforced concrete frame composed of reinforced concrete columns and beams Dismantling; (b) forming anchor holes on both sides of the lower surface of the beam and fixing a plurality of shear connecting members to the anchor holes; (c) 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 one pillar and the other pillar, respectively, by lifting the pair of PC wall panels. Installing; (d) drilling an anchor hole on one side and the other side of the bottom of the reinforced concrete frame and the pillar through the vertical coupling hole and the horizontal coupling hole using a drilling drill; (e) inserting and anchoring the anchor member to the anchor hole through the vertical coupling hole and the horizontal coupling hole; (f) filling a grouting material into the vertical coupling hole and the horizontal coupling hole; And (g) placing finishing concrete in the space between the other end of the horizontal portion of the pair of PC wall panels and between the top of the vertical portion and the bottom of the beam; It provides a method of constructing a reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that comprising a.

According to another preferred embodiment of the present invention, in the step (d), the PC wall panel is characterized by sealing the sealing material between the lower surface of the horizontal portion and the bottom surface of the reinforced concrete frame and between the vertical portion and the side surface of the pillar before the anchor hole drilling. Provided are methods of constructing a reinforced concrete frame seismic reinforcement structure.

According to the present invention has the following effects.

First, by inserting 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 panel is directly fixed to the existing reinforced concrete frame, thereby reinforcing the existing reinforced concrete frame in a simple manner. It is excellent in stress transmission efficiency.

Second, the L-shaped PC wall panel consisting of the horizontal portion and the vertical portion can be reinforced by arranging the U-shaped so that a single or a pair of symmetrical with each other, it is possible to form the opening naturally to maximize the open area.

Third, since there is no part protruding outward of the PC wall panel, the carrying and loading efficiency is excellent.

Fourth, since there is no steel part where the PC wall panel is exposed to the outside, no separate treatment for fire and corrosion prevention is necessary.

1 is a perspective view of a frame reinforced by conventional bracing;

2 is a perspective view of a conventional earthquake-resistant reinforcing PC member.

Figure 3 is a perspective view showing a PC wall panel of the present invention reinforced concrete frame seismic reinforcement.

4 is a 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 reinforcement structure using the present invention PC wall panel.

Fig. 6 is a sectional view showing a drill bit inserted into the 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 a beam and a vertical portion.

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

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

11 is a perspective view showing another embodiment of the reinforced concrete frame seismic reinforcement structure using the present invention PC wall panel.

12 is a front view showing another embodiment of the reinforced concrete frame seismic reinforcement structure after finishing concrete pouring.

Figure 13 is a perspective view showing a reinforced concrete frame of the external 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 of the present invention reinforced concrete frame seismic reinforcement.

As shown in Figure 3, the PC wall panel for the reinforced concrete frame seismic reinforcement of the present invention is installed in the reinforced concrete frame (1) consisting of a reinforced concrete pillar (11) and beams 12 to strengthen the seismic resistance It relates to the wall panel (2), the horizontal portion (21) for being coupled to be in close contact with the upper inner bottom surface of the reinforced concrete frame (1); And a vertical portion 22 extending upwardly from one end of the horizontal portion 21 to be coupled to be in close contact with an inner surface of one side pillar 11 inside the reinforced concrete frame 1; Consisting of an L shape as a whole, the horizontal portion 21 and the vertical portion 22 is a plurality of vertical coupling holes 211 and horizontally penetrated in the vertical direction and the horizontal direction for insertion of the anchor member 3, respectively It is characterized in that the coupling hole 221 is formed.

PC wall panel for reinforced concrete frame seismic reinforcement is divided into a horizontal portion 21 and a vertical portion 22 to form an L-shape as a whole, so that it is easy to secure openings such as windows when reinforcing the structure It was.

The PC wall panel 2 is horizontal portion 21 is tightly coupled to the bottom surface of the reinforced concrete frame 1, the vertical portion 22 is coupled to be tightly coupled to the inner surface of one side pillar (11).

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

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

Accordingly, the anchor member 3 is fixed to the pillar 11 or the beam 12, which is an existing member, through the vertical coupling hole 211 and the horizontal coupling hole 221 pre-formed in the PC wall panel 2. The panel 2 can be fixed to the reinforced concrete frame 1.

Accordingly, in order to fix the PC wall panel 2 to the existing reinforced concrete frame 1, a separate coupling member protruding to the outside of the PC wall panel 2 is unnecessary, and the PC wall panel (using the anchor member 3) is used. 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 styrofoam or PVC pipe in advance.

The materials to be embedded to form the vertical coupling hole 211 and the horizontal coupling hole 221 may be filled with a grouting material 4 filled in the vertical coupling hole 211 and the horizontal coupling hole 221. ) And it is desirable to remove it so that it can be integrated through reinforcement of adhesion.

In particular, when forming the vertical coupling hole 211 and the horizontal coupling hole 221 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 manufacturing the PC wall panel (2), when the concrete is poured and the PVC pipe is pulled out before the concrete is completely hardened, the vertical coupling hole 211 and the horizontal coupling hole 221 are formed intact, and the vertical direction is removed by removing the PVC pipe. The inner peripheral 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) to reinforce the L-shape, as shown in Figure 11 to be described later, such as two L-shape in accordance with the interval of the column (11) It is also possible to reinforce the structure by symmetrically installing the PC wall panel 2 in the U shape.

As described above, when reinforcing the reinforced concrete frame 1 using the PC wall panel 2 of the present invention, while forming an opening for a window or the like naturally, while ensuring the maximum open area and the existing reinforced concrete frame 1 and Easily mated and efficient stress transmission maximizes seismic performance.

In addition, since the PC wall panel 2 does not protrude outwardly, the transport and stacking efficiency is excellent, and since the PC wall panel 2 is composed of a PC member, a separate treatment for preventing fire and corrosion 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 reinforced concrete frame 1, a free space of a suitable size is required.

Therefore, the horizontal length and the vertical length of the PC wall panel 2 are made smaller than the inner width and height of the reinforced concrete frame 1, and the existing reinforced concrete frame on the other end of the horizontal portion 21 and the top of the vertical portion 22 is

Connection members

23 and 24 for integration with (1) may be provided.

When installing the PC wall panel (2) using the connecting members (23, 24), not only can easily cope with various sizes of the existing reinforced concrete frame (1) but also easy to integrate with the existing reinforced concrete frame (1) We can plan.

The

connection members

23 and 24 may be various embodiments. In FIG. 3, the other end of the horizontal portion 21 is coupled to the connecting member 23 in the form of a hoop muscle, and the connecting member 24 in the form of a shear connector is coupled to the upper end of the vertical portion 22.

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

As shown in (a) to (b) of FIG. 4, the blocking material 25 may be provided at the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221.

After the PC wall panel 2 is installed, the PC wall panel 2 blocks the play of the portion in contact with the reinforced concrete frame 1, and the foreign matter generated during the drilling of the anchor hole 121 to be described later is the PC wall panel. The sealing material S may be filled between the PC wall panel 2 and the reinforced concrete frame 1 to prevent penetration between the reinforced concrete frame 1 and the reinforced concrete frame 1.

Therefore, the blocking material 25 is provided at the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221, so that the sealing material S moves into the vertical coupling hole 211 and the horizontal coupling hole 221. Prevent entry.

As the blocking material 25, an elastic material such as a backing material or a dry pack which is a mortar of a kneaded dough may be used.

In particular, when the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221 is sealed with a dry pack, the vertical coupling hole 211 or the horizontal coupling hole 221 as shown in Figure 4 (b). The stepped

portions

212 and 222 may be formed to a predetermined length so as to form a narrow entrance.

In this case, the vertical coupling hole 211 and the horizontal coupling hole 221 are more easily sealed.

After the filling and hardening of the sealing material (S) proceeds, the anchor member 3 is coupled to the reinforced concrete frame 1 through the vertical coupling hole 211 or the horizontal coupling hole 221 using the drill 6. When the anchor hole 121 is drilled, the blocking material 25 is drilled together and removed.

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

As shown in Figure 5, 9, etc., the reinforced concrete frame seismic reinforcement structure using a PC wall panel of the present invention is a reinforced concrete frame (1) consisting of a reinforced concrete column 11 and a beam 12; The lower surface of the horizontal portion 21 is in close contact with the bottom surface of the reinforced concrete frame 1 in the interior of the reinforced concrete frame 1, and the outer end of the vertical portion 22 is in close contact with the inner surface of the one column (11) The PC wall panel 2 installed; An anchor member 3 inserted into and fixed to one side of the bottom surface of the reinforced concrete frame 1 and the pillar 11 through the vertical coupling hole 211 and the horizontal coupling hole 221; Grouting material (4) is filled in the vertical coupling hole 211 and the horizontal coupling hole (221); And finishing concrete 5 which is poured into a space between the other end of the horizontal portion 21 and the other pillar 11 and between the upper end of the vertical portion 22 and the lower portion of the beam 12. Characterized in that consists of.

This is for the embodiment of 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 part 22 and the other end of the horizontal part 21 for coupling with the beam 12 and the pillar 11. .

The sealing material S may be filled between the PC wall panel 2 and the reinforced concrete frame 1, and the blocking material 25 is disposed at the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221. It can be configured to prevent the sealing material (S) is introduced into the interior of the vertical coupling hole 211 and the horizontal coupling hole (221).

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

That is, the PC wall panel 2 is installed in the reinforced concrete frame 1, and then the anchor member 3 is inserted into the reinforced concrete frame 1 through the vertical coupling hole 211 and the horizontal coupling hole 221. The PC wall panel 2 can be fixed in the inside (FIG. 5).

At this time, since the opening is formed in the upper portion of the PC wall panel (2), it is easy for the worker to secure a sufficient working space to insert the anchor member 3 in the vertical coupling hole 211 or 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, may use non-condensed mortar, etc., and the PC wall panel 2 and the reinforced concrete according to the filling of the grouting material 4. The frame 1 can be combined integrally.

The finishing concrete 5 is poured into the space between the other end of the horizontal portion 21 and the other pillar 11 and between the upper end of the vertical portion 22 and the lower portion of the beam 12 (FIG. 9).

On the other hand, in order to couple the anchor member 3, the reinforced concrete frame 1 should be formed with an anchor hole 121.

To this end, as shown in FIG. 6, the drill bit of the drill 6 may be inserted into the vertical coupling hole 211 or the horizontal coupling hole 221 to form an anchor hole 121 in the reinforced concrete frame 1.

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

At the time of construction of the anchor member 3, anchor liquid is pre-injected 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 connected to the PC wall panel 2. And the reinforced concrete frame (1) to be firmly fixed to each other.

In addition, as described above, the blocking material 25 positioned at the end of the vertical coupling hole 211 and the horizontal coupling hole 221 is removed during the drill operation for forming the anchor hole 121.

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

As shown in Figure 7 and 8, the upper end of the vertical portion 22 and the other end of the horizontal portion 21 and the lower inner side of the other pillar 11 and the lower one side of the beam 12 is the finishing concrete ( 5) a plurality of

connection members

13, 14, 23, 24 embedded in the may be provided to protrude.

Specifically, in FIG. 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 pillar 11, respectively.

As shown in FIG. 7, when the connecting member 23 coupled to the horizontal portion 21 of the PC wall panel 2 is a hoop muscle, the connecting member 13 coupled to the other pillar 11 also corresponds to the hoop muscle. It can be configured as.

The connecting

members

13 and 23 in the form of hoop muscles may be arranged to overlap a predetermined area with each other, and a vertical reinforcing bar 15 may be additionally disposed at a portion where the hoop muscles overlap.

In addition, in FIG. 8, the connecting

members

14 and 24 in the form of shear connectors are protruded from the upper end of the vertical part 22 and the lower one side of the beam 12, respectively.

Preferably, the shear connectors are staggered so as not to overlap each other.

The connecting

members

13 and 14 provided on the pillars 11 and the beams 12 drill anchor holes in the side surfaces of the pillars 11 and the lower part of the beams 12, respectively, to inject the anchor solution, and to connect the connecting members 13, 14) to be fixed by inserting, and the connecting members (23, 24) provided in the PC wall panel (2) is to be pre-embedded in concrete when manufacturing the PC wall panel (2), respectively.

FIG. 9 shows an embodiment of reinforcing the reinforced concrete frame 1 with one L-shaped PC wall panel 2, between the other end of the horizontal portion 21 and the other pillar 11 and the upper end of the vertical portion 22. It is a figure which shows the state after the finishing concrete 5 is poured into the space between the lower part of the beam 12 and.

A method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel will be described with reference to FIGS. 5 and 9.

In the construction method of the reinforced concrete frame seismic reinforcement structure using the PC wall panel of the present invention, first, (a) to remove the windows and masonry installed inside the reinforced concrete frame (1) consisting of the reinforced concrete column (11) and beam (12) do.

And (b) forming an anchor hole in one side of the lower surface of the beam 12 and fixing a plurality of shear connecting members in the anchor hole, while forming an anchor hole in the lower side of the inner side of the other pillar 11 and end portions of the plurality of hoop muscles. To settle.

The shear connector and hoop muscle are connecting

members

13 and 14 for integrating the reinforced concrete frame 1 and the PC wall panel 2.

The shear connector and the hoop root are respectively fixed at one end inside the beam 12 and the pillar 11, and the other end protrudes out of the beam 12 and the pillar 11, protruding outward from the PC wall panel 2. The reinforced concrete frame 1 and the PC wall panel 2 are integrated together with the shear connector and the hoop muscle which are the connecting

members

23 and 24.

Next, (c) the lower surface of the horizontal portion 21 is in close contact with the bottom surface of the reinforced concrete frame 1 in the interior of the reinforced concrete frame 1 by lifting the PC wall panel 2. The outer end of the) is installed to be in close contact with the inner surface of the one side pillar (11).

The sealing material S may be filled between the PC wall panel 2 and the reinforced concrete frame 1, and the blocking material 25 is disposed at the lower end of the vertical coupling hole 211 and the outer end of the horizontal coupling hole 221. ) May be provided.

And (d) punching the anchor holes 121 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 drill drill. Next, (e) the anchor member 3 is inserted into the anchor hole 121 and fixed through the vertical coupling hole 211 and the horizontal coupling hole 221.

In the step (d), before the anchor hole 121 is drilled, the sealing material S is disposed between the lower surface of the horizontal portion 21 and the bottom surface of the reinforced concrete frame 1 and between the vertical portion 22 and the side surface of the pillar 11. By sealing, the space between the PC wall panel 2 and the reinforced concrete frame 1 can be blocked.

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

Finally (g) placing and curing the finishing concrete 5 in the space between the other end of the horizontal portion 21 and the other pillar 11 and between the upper end of the vertical portion 22 and the lower portion of the beam 12. Finish the construction.

In the step (c), the PC wall panel 2 is doubled to install the PC wall panel 2 inside the reinforced concrete frame 1.

In this case, as shown in FIG. 10, when the PC wall panel 2 is connected by lifting both wires to the horizontal portion 21 on one side and the vertical portion 22 on the other side, the PC wall panel 2 is vertical and horizontal. It can be installed easily while maintaining construction.

In order to connect the two wires, the PC wall panel 2 may form a wire coupling hole in the horizontal portion 21 on one side and the vertical portion 22 on the other side, or couple both rings.

11 is a perspective view showing another embodiment of the reinforced concrete frame seismic reinforcement structure using the PC wall panel of the present invention, Figure 12 is a front view showing another embodiment of the reinforced concrete frame seismic reinforcement structure after finishing concrete casting.

11 and 12, the reinforced concrete frame seismic reinforcement structure using the PC wall panel of the present invention is a reinforced concrete frame (1) consisting of a reinforced concrete column 11 and a beam 12; A pair is provided symmetrically with each other so that the lower surface of the horizontal portion (21, 21 ') is in close contact with the bottom surface of the reinforced concrete frame (1) in the interior of the reinforced concrete frame (1), one side of the vertical portion (22, 22') The PC wall panel (2, 2 ') is formed so that the ends are in close contact with the inner surface of the one pillar (11) and the other pillar (11) as a whole to form a U shape; An anchor member 3 inserted into and fixed to the bottom of the reinforced concrete frame 1 and the pillar 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 a finish cast 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 'and the lower portion of the beam 12. Concrete 5; Characterized in that consists of.

This is for the embodiment in which a pair of L-shaped PC wall panels 2, 2 'are arranged to be symmetrical with each other to reinforce the reinforced concrete frame 1 in a U shape.

The

PC wall panels

2, 2 ′ have a plurality of connections at the upper ends of the

vertical parts

22, 22 ′ and the other ends of the

horizontal parts

21, 21 ′ for engagement with the beam 12 and the pillars 11. The

members

23, 24, 24 'protrude.

In the case of the embodiment, the configuration of the anchor member 3, the grouting material 4, etc. is the same as in the reinforced concrete frame seismic reinforcement 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 each other and closely installed on the bottom of the reinforced concrete frame (1) and both pillars (11) to form a U shape as a whole.

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

In addition, the outer surfaces of the vertical portions 22, 22 'of the pair of PC wall panels 2, 2' are in close contact with the inner surfaces of the one pillar 11 and the other pillar 11, and the adjacent horizontal portions 21 , 21 '), the finishing concrete 5 is poured.

By the finishing concrete 5 poured in the space between neighboring horizontal parts 21 and 21 ', the construction error between neighboring horizontal parts 21 and 21' can be absorbed.

Of course, the finishing concrete 5 is also poured into the space between the upper end of the vertical parts 22, 22 'and the lower part of the beam 12 to integrate the PC wall panels 2, 2' and the reinforced concrete frame 1. (FIG. 12).

The other end of the horizontal portion 21, 21 'and the upper end of the vertical portion 22, 22' and the lower both sides of the beam 12, the connecting

member

14, 23, 24, 24 'embedded in the finishing concrete (5) ) May be provided to protrude.

Specifically, as shown in FIG. 11, in order to integrate neighboring PC wall panels 2 and 2 ', the hoop muscles, which are the connection members 23, are joined to the end portions of the horizontal portions 21 and 21' so as to contact each other with a predetermined area. can do. A vertical reinforcing bar 15 may be additionally disposed at the portion where the hoop muscles overlap.

In addition, the connecting

members

14, 24, and 24 'in the form of shear connectors may protrude from both the upper ends of the vertical parts 22 and 22' and the lower sides of the beams 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.

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

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

The shear connector is one end is fixed to the beam 12 and the other end is projected below the beam 12, and the shear connector is a connecting member (24, 24 ') protruding out of the PC wall panels (2, 2') and The reinforced concrete frame 1 and the PC wall panels 2 and 2 'are integrated together.

Next, (c) the lower surface of the horizontal portions 21 and 21 'in the interior of the reinforced concrete frame 1 by lifting the pair of PC wall panels 2 and 2', respectively, in the reinforced concrete frame 1 It is in close contact with the bottom surface of the, and is installed so that the outer end of the vertical portion (22, 22 ') is in close contact with the inner surface of the one side pillar 11 and the other side pillar 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 portion of the vertical coupling holes 211 and 211' of the horizontal portions 21 and 21 'and A blocking member 25 may be provided at the outer ends of the horizontal coupling holes 221 and 221 'of the vertical parts 22 and 22'.

And (d) the bottom and reinforcement of the reinforced concrete frame 1 and one side and the other side of the reinforced concrete frame 1 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221', respectively, by using a drill drill. After the anchor hole 121 is drilled, the anchor member 3 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 reinforcement structure of FIGS. 5 and 9 described above, in the step (d), the lower surface of the horizontal portions 21 and 21 'and the reinforced concrete frame 1 before the anchor hole 121 are drilled. The sealing material S is sealed between the bottom of the wall and between the vertical portions 22 and 22 'and the side surfaces of the pillars 11 to block the space between the PC wall panels 2 and 2' and the reinforced concrete frame 1. Can be.

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

Finally, (g) between the other ends of the

horizontal portions

21, 21 ′ of the pair of

PC wall panels

2, 2 ′ and between the top of the

vertical portions

22, 22 ′ and the bottom of the beam 12. The finishing concrete (5) is poured into the space and cured to finish the construction.

FIG. 13 is a perspective view illustrating a reinforced concrete frame having an exterior finish; FIG.

9 and 12, after pouring the finishing concrete 5 between the PC wall panel 2 and the reinforced concrete frame 1, the PC wall panel 2 and the reinforced concrete frame 1 as shown in FIG. It is possible to engage the window 8 in the opening formed by.

In addition, the wall tiles 7 are attached to the exterior of the PC wall panel 2 and the finishing concrete 5 to complete the finishing work.

Explanation of sign

1: reinforced concrete frame 11: pillar

12: beam 121: anchor hole

13, 14: connection member 15: vertical rebar

2, 2 ': PC wall panel 21, 21': horizontal section

211 and 211 ': vertical coupling hole 212: stepped portion

22, 22 ': vertical portion 221, 221': horizontal coupling hole

222:

step

23, 24, 24 ': connecting member

25: blocking material 3: anchor member

4: grouting material 5: finished concrete

6: drill 7: wall tiles

8: window S: sealing material

Claims

It relates to a PC wall panel (2) for reinforcing seismic reinforcement in the interior of the reinforced concrete frame (1) consisting of a reinforced concrete column (11) and a beam (12),

A horizontal portion 21 coupled to be in close contact with an upper portion of an inner bottom surface of the reinforced concrete frame 1; And

A vertical portion 22 formed to extend upwardly at one end of the horizontal portion 21 to be coupled to be in close contact with an inner surface of one pillar 11 inside the reinforced concrete frame 1; Consisting of an L shape as a whole,

The horizontal portion 21 and the vertical portion 22 is characterized in that a plurality of vertical coupling holes 211 and horizontal coupling holes 221 penetrated in the vertical direction and the horizontal direction, respectively, for insertion of the anchor member 3 is formed. Reinforced concrete frame PC wall panel for seismic reinforcement.
In claim 1,

Reinforced concrete frame seismic reinforcement PC wall panel, characterized in that a plurality of connecting members (23, 24) are provided to protrude at the upper end of the vertical portion and the other end of the horizontal portion (21).
In claim 1,

Reinforced concrete frame seismic reinforcement PC wall panel, characterized in that the blocking material 25 is provided at the lower end of the vertical coupling hole (211) and the outer end of the horizontal coupling hole (221).
Reinforced concrete frame (1) consisting of a reinforced concrete column (11) and a beam (12);

The lower surface of the horizontal portion 21 is in close contact with the bottom surface of the reinforced concrete frame 1 in the interior of the reinforced concrete frame 1, and the outer end of the vertical portion 22 is in close contact with the inner surface of the one column (11) PC wall panel (2) according to claim 2 installed;

An anchor member 3 inserted into and fixed to one side of the bottom surface of the reinforced concrete frame 1 and the pillar 11 through the vertical coupling hole 211 and the horizontal coupling hole 221;

Grouting material (4) is filled in the vertical coupling hole 211 and the horizontal coupling hole (221); And

Finishing concrete (5) is poured in the space between the other end of the horizontal portion 21 and the other pillar 11 and between the upper end of the vertical portion 22 and the lower portion of the beam 12; Reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that consisting of.
In claim 4,

A plurality of connection members 13 embedded in the finishing concrete 5 are disposed at the upper end of the vertical part 22 and the other end of the horizontal part 21 and the lower inner side surface of the other pillar 11 and the lower one side of the beam 12. , 14, 23, 24) reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that is provided to protrude.
Reinforced concrete frame (1) consisting of a reinforced concrete column (11) and a beam (12);

A pair is provided symmetrically with each other so that the lower surface of the horizontal portion (21, 21 ') is in close contact with the bottom surface of the reinforced concrete frame (1) in the interior of the reinforced concrete frame (1), one side of the vertical portion (22, 22') PC wall panels (2, 2 ') according to claim 2, wherein the stages are installed to be in close contact with inner surfaces of the one pillar (11) and the other pillar (11), respectively, to form a U shape as a whole;

An anchor member 3 inserted into and fixed to the bottom of the reinforced concrete frame 1 and the pillar 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

Finished concrete poured in the 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 'and the lower portion of the beam 12. (5); Reinforced concrete frame seismic reinforcement structure using a PC wall panel, characterized in that consisting of.
In claim 6,

Connection members 14, 23, and 24 embedded in the finishing concrete 5 protrude from the other ends of the horizontal parts 21 and 21 ′ and the upper ends of the vertical parts 22 and 22 ′ and the lower sides of the beams 12. Reinforced concrete frame seismic reinforcement structure using a PC wall panel characterized in that it is provided to be.
Regarding a method for constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panel (2) according to claim 4,

(a) removing the windows and the masonry installed in the reinforced concrete frame 1 including the reinforced concrete pillars 11 and the beams 12;

(b) Anchor holes are formed at one side of the lower surface of the beam 12, and a plurality of shear connecting members are fixed at the anchor holes, while anchor holes are formed at the bottom of the inner side of the other pillar 11, and end portions of the plurality of hoop muscles are formed. Anchoring;

(c) The lower surface of the horizontal portion 21 is in close contact with the bottom surface of the reinforced concrete frame 1 inside the reinforced concrete frame 1 by lifting the PC wall panel 2, and the outer side of the vertical portion 22 Installing the stage to be in close contact with the inner side of the one column (11);

(d) drilling the anchor holes 121 on 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, respectively. ;

(e) inserting and anchoring 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 the space between the other end of the horizontal portion (21) and the other pillar (11) and between the upper end of the vertical portion (22) and the lower portion of the beam (12); Construction method of the reinforced concrete frame seismic reinforcement structure using a PC wall panel comprising a.
A method of constructing a reinforced concrete frame seismic reinforcing structure using the PC wall panels 2 and 2 'according to claim 6,

(a) removing the windows and the masonry installed in the reinforced concrete frame 1 including the reinforced concrete pillars 11 and the beams 12;

(b) forming anchor holes on both sides of the lower surface of the beam 12 and fixing a plurality of shear connecting members to the anchor holes;

(c) The lower surface of the horizontal portions 21 and 21 'is in close contact with the bottom surface of the reinforced concrete frame 1 by lifting the pair of PC wall panels 2 and 2' in the interior of the reinforced concrete frame 1. And installing the outer ends of the vertical parts 22 and 22 'to be in close contact with the inner surfaces of the one pillar 11 and the other pillar 11, respectively;

(d) Anchors on one side and the other side of the bottom of the reinforced concrete frame 1 and the pillars 11 through the vertical coupling holes 211 and 211 'and the horizontal coupling holes 221 and 221' using a drill drill, respectively. Drilling the hole 121;

(e) inserting and anchoring 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';

(f) filling the grouting material (4) into the vertical coupling holes (211, 211 ') and the horizontal coupling holes (221, 221'); And

(g) finish in the space between the other ends of the horizontal portions 21, 21 'of the pair of PC wall panels 2, 2' and between the top of the vertical portions 22, 22 'and the bottom of the beam 12. Pouring concrete 5; Construction method of the reinforced concrete frame seismic reinforcement structure using a PC wall panel comprising a.
The method of claim 8 or 9,

In the step (d), before the anchor hole 121 is drilled, the sealing material S is disposed between the lower surface of the horizontal portion 21 and the bottom surface of the reinforced concrete frame 1 and between the vertical portion 22 and the side surface of the pillar 11. Construction method of the reinforced concrete frame seismic reinforcement structure using a PC wall panel characterized in that the sealing.