KR101917811B1 - Use of partial precast concrete wall panel to retrofit the masonry wall with window - Google Patents

Abstract

The present invention relates to a seismic retrofit method using a PC wall panel that can increase the resistance to seismic resistance of a conventional beam-column structure made of a masonry wall by utilizing a precast concrete wall panel (remodeling PC wall panel) And more particularly, to an L-type PC panel; Wherein the L-type PC panel comprises a welded wire net made of a vertical member and a horizontal member welded to each other; An upper beam connecting portion and a lower beam connecting portion formed such that a plurality of cutting grooves are formed at the upper and lower ends of the L-shaped PC panel and a portion of the welded wire mesh buried therein is exposed in the cutting groove; A plurality of cut-out grooves formed on one side of the L-shaped PC panel so as to be joined to the column corresponding to one side of the L-shaped PC panel, and the welded wire mesh therein is exposed in the cut-out groove; An L-shaped PC panel including a side PC panel joint portion in which a plurality of cutout grooves are formed on the other side of the lower column joint portion of the L-shaped PC panel so that the welded wire mesh is exposed in the cutout groove, Welded wire mesh and anchor bolts are welded to each joint to fix the front end of the L-type PC panel so that seismic design can be done and a part can be remodeled easily. .

Description

A method of reinforcing a masonry wall with a window using a partial PC wall panel,

The present invention relates to a PC wall panel that can increase the resistance to seismic resistance of a wall constructed using a masonry structure and a conventional beam-column structure using a precast concrete wall panel (PC wall panel) The present invention relates to a method of seismic isolation using an L-type PC panel, and more particularly, to a method of seismic isolation using an L-type PC panel, a cement mortar on a masonry wall surface, To a method for reinforcing a masonry wall provided with a window by using a partial PC wall panel, which is capable of increasing the lateral support force by joining the PC panel and simplifying the remodeling construction work and reducing the construction cost.

In the existing beam - column structure, the shape of the masonry wall has the form of L - shaped, U - shaped, or bottom - only window jaws depending on the position of the window. The existing seismic retrofitting technology using PC wall panel was to remove all the masonry walls installed inside the beam - columns and to increase the lateral bearing capacity by installing L - shaped or U - shaped PC wall panels in the beam - column section. However, in this case, not only the additional cost of demolishing the masonry wall, but also the waste disposal cost of demolished masonry wall debris.

Conventionally, masonry structures have a certain strength and can be expected to increase in high lateral bearing capacity when they are combined with PC wall panels. In addition, good quality anchor injections can be purchased at a reasonable price in recent years. Therefore, it is possible to remodel the building at lower cost and to strengthen the seismic reinforcement when the anchor injection solution is coated on the surface of the masonry wall and the PC panel is jointed.

As described above, a technique utilizing an anchor injection solution as an adhesive agent has been rapidly developed. Apply a high viscosity anchor injection solution to the inside or outside of the masonry wall and attach the L-type PC wall panel with a thickness of 30 ~ 100mm to match the inside edge.

In this case, since the L-shaped PC wall panel has a certain size, there is a problem that the size of the RC concrete structure, which is required to be reinforced in a certain period of time, can not be adjusted.

As for the prior art of this field, the "Seismic Retrofit Structure and Seismic Retension Method Using It" (hereinafter referred to as "Prior Art 1") of Patent Registration No. 10-1481152 (Jan. 05, 2015) A vertical member 20 installed parallel to the columns of the seismic retrofitting structure and constituting the seismic strengthening structure; And a horizontal member (10) which is installed parallel to any one of the beams and constitutes the seismic strengthening structure. The vertical member (20) The horizontal member 10 and the columns are connected by being filled with reinforcing bars and concrete or mortar, and the seismic strengthening structure is provided between columns and pillars of the building alternately in the form of '└' and '┘' (Refer to FIG. 1), and reference numerals 30, 31, 32, and 33 in FIG. 1 are iron plate members.

The PC member of the seismic strengthening joint structure for the window frame and the method of building earthquake-resistant construction using this structure (hereinafter referred to as " Prior Art 2 ") of another prior art Patent Publication No. 10-2012-0060015 (published on June 11, 2012) Type PC member 1 composed of a horizontal member 7 and a vertical member 6 has a structure in which the connection between the horizontal member 7 and the horizontal member 7 of another PC member 1 A connecting loop member 8 to be used as a connecting member; And an iron plate member (9) used as a joining portion between the vertical member (6) and the column, wherein the joining between the vertical member and the upper layer beam is performed by inserting a reinforcing bar through a hole in the upper beam, Wherein the connection member is formed in at least one annular shape on at least one of the joining portions of the horizontal member, and the iron plate member (9) is attached to at least one of the joining portions of the vertical member (Refer to FIG. 2) of the earthquake-proof reinforcement joint structure for a window frame, which is coupled to the frame member in the form of a window frame. 2 is a connecting portion, 3 is a front end reinforcing bar, 4 is a main reinforcing bar, 5 is a reinforcing frame, 8 is a connecting ring member, 10 is a through hole, 11 is a fixing member and 12 is a recessed portion.

In addition, many prior arts such as the registered patent publication No. 10-13465814, the registered patent publication No. 10-1277751, and the registered patent publication No. 10-0956974 are disclosed.

Both the prior art 1 and prior art 2 and conventional PC panel members and the method of building earthquake resistant construction have both seismic performance against earthquakes by increasing the vertical and transverse reinforcement of columns and beams while maintaining the size of window frames The present invention relates to a PC panel member having an earthquake-proof reinforcement joint structure for a window frame, which has excellent workability and economical efficiency through simple construction. (See Figs. 1 and 2) were installed to increase the lateral support force. However, in this case, there is a problem that it takes time to dismantle the masonry wall, to dispose of the masonry wall waste, and then to install the PC panel member, in addition to the additional cost for demolishing the demolition wall, There is a problem that the construction period of the remodeling is increased.

In addition, the above-mentioned prior art PC panels are inconvenient that they are heavy in weight and must be installed by a crane, and that they are inconvenient because they require a long working time to align the anchor ball and the anchor ball between the column and the column, There is a problem.

Therefore, even if the thickness of the PC panel member having the structure as in the prior art is reduced, there is a problem that it is structurally unsuitable for remodeling construction while maintaining the existing masonry wall.

Korean Patent Publication No. 10-2012-0060015. Korean Patent Publication No. 10-2012-0060015

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a masonry structure for a building, After applying a bonding agent such as an anchor injection solution to the outer surface and attaching the L-type PC panel to install the L-shaped or U-shaped PC panel, it is necessary to reinforce the coarse wall so as to reduce the construction cost and construction cost For the purpose of providing an L-shaped PC wall panel,

In addition, the present invention provides an eco-friendly remodeling construction method by not only removing the masonry walls around the windows of existing buildings but also eliminating the cost of dismantling the demolished masonry wall as well as the additional cost of demolishing the masonry wall For purposes of providing,

Another object of the present invention is to provide a wall-mounted type PC wall panel for reinforcing the coarse wall of the present invention, which has a certain strength, but is not susceptible to seismic lateral load due to no earthquake- By combining the existing masonry wall strength and the supporting force of remodeled PC wall panel by constructing in addition to the masonry wall, it is aimed to have high lateral bearing capacity and to apply seismic design of building,

In addition, the present invention is characterized in that the thickness of the L-type PC panel is made as thin as 5 to 10 cm, and a cut-out groove is formed so as to expose a part of the welded wire mesh to be buried therein to form a column joint portion and an upper and lower beam joint portion, The present invention relates to a method of reinforcing a masonry wall provided with a window in order to increase the lateral support force and the vertical support force and to increase the shear support force of the welded wire mesh to improve the fixation and durability of the PC panel.

In order to achieve the above object, according to the present invention,

An L-type PC panel;

Wherein the L-type PC panel comprises: a welded wire net made up of a vertical member and a horizontal member welded together;

An upper beam connecting portion and a lower beam connecting portion formed at the upper and lower ends of the L-shaped PC panel so as to have a plurality of cutout grooves to expose the inner welded wire net;

And a column connecting portion formed on the one side of the L-type PC panel so as to be joined to the column corresponding to one side of the L-type PC panel, so as to expose the inside of the welded wire net.

A method of reinforcing the outer peripheral wall of the window using the partial PC wall panel using the L-shaped PC panel configured as described above will be described below.

Washing the masonry wall around the window corresponding to the L-shaped PC panel of the building to be remodeled to remove foreign matter, drying and then spraying the cement mortar;

Drilling a third anchor hole and a fourth anchor hole on the side of the first anchor hole and the side of the first anchor hole and the other side of the lower anchor hole and drilling the fourth anchor hole on the upper anchor surface so as to fix the L type PC panel;

Applying an anchor injection solution to the mortar-reinforced masonry wall surface around the window corresponding to the L-type PC panel;

Filling the anchor injection solution into the first anchor hole, the second anchor hole, the third anchor hole, and the fourth anchor hole, which are perforated on one surface of the upper and lower bows,

After attaching the prepared L-type PC panel to the masonry wall surface coated with the anchor injection solution, one end of the anchor bolt is inserted into the first anchor hole, the second anchor hole, the third anchor hole and the fourth anchor hole filled with the anchor injection solution ;

The anchor bolt fixedly inserted in the first anchor hole, the second anchor hole, the third anchor hole, and the fourth anchor hole is welded to the welded wire mesh exposed in the incision groove of the upper welded portion and the exposed welded portion of the lower welded portion. Welding to a welded wire mesh exposed in a cutout groove of a column joint corresponding to a wire net and a RC column and a cutout groove of a PC panel joint;

A method of filling a mortar or an anchor injection solution into a gap and an incision groove of the upper and lower beam connection portions, the column connection portion and the PC panel connection portion, filling the gap and then applying a finishing material to the outer surface, .

Further, as another embodiment of the present invention, two L-type PC panels are installed in a U-shape as an L-shaped PC panel so as to correspond to a wall surface of a U-shaped window by the same method as the L- Shaped L-shaped PC panel, and a beam connecting part having a plurality of cut-out grooves on the surface corresponding to the two pillars, respectively, to form an L-type PC panel U "shape on the masonry wall.

According to the present invention as described above, the mortar is applied on the L-shaped, U-shaped, or -sized masonry wall without removing the masonry wall formed on the existing wall surface, and after bonding, the bonding agent such as an anchor injection solution is applied, It is possible to increase the lateral bearing capacity by joining and fixing the PC panel to the beams and pillars by using the joints and column joints and the PC panel joints. At the same time, by removing the masonry walls around the windows of existing buildings, The present invention relates to a wall-mounted PC wall panel and a PC wall panel using the PC wall panel in consideration of the simplicity of construction and economical efficiency, as well as an additional cost for dismantled masonry walls.

In the present invention, firstly, the mortar is applied on the masonry wall having the shape of L-shape, U-shape and ㅡ-type without removing the masonry wall around the window of the existing building, and then the joint agent of the anchor injection solution is applied, U-type, and ㅡ -type type, it is possible to apply the seismic design in the remodeling,

Second, since the present invention is applied without removing the masonry walls around the windows of existing masonry buildings, it is possible not only to incur additional costs for demolishing masonry walls but also to dispose of waste for dismantled masonry walls, And,

In addition, the present invention prevents the overlapped portions of the vertical and horizontal members of the welded wire mesh, which are laid out in the inside of the L-shaped PC panel, from protruding or overlapping portions so that the L-shaped PC panel is thinned to a thickness of 5-10 cm, Walled PC wall panel having durability of concrete and having an excellent appearance by allowing it to be superimposed on the outer surface space without removing it, and a seismic proofing method using the PC wall panel.

FIG. 1 shows an L-type PC panel to be installed after removing a masonry wall around a window,
FIG. 2 is a view showing a PC panel which can be remodeled by using two L-type PC panels after removing the masonry wall around the window,
FIG. 3 is a perspective view showing an L-type PC panel having an upper and lower beam joining portion, a column joining portion, and a side PC panel joining portion as an L-type PC panel of the present invention,
FIG. 4 is a cross-sectional view of a welded metal wire laid on an L-shaped PC panel of the present invention,
Fig. 5 shows a conventional reinforced concrete beam-column frame having a masonry wall to be reinforced,
6 is a view showing a state in which an anchor hole is drilled in an RC column to install the L-type PC panel of the present invention,
Fig. 7 shows a state in which an adhesive of an anchor injection solution is applied after applying mortar to a masonry wall surface on which an L-type PC panel of the present invention is installed,
8 is a view showing a state in which an L-shaped PC panel having upper and lower beam connecting portions, a column connecting portion and a PC panel connecting portion is mounted on a side of a masonry wall around a window by using a crane as an embodiment of the present invention,
Fig. 9 is an exemplary view showing a state in which the L-type PC panel is bonded to the masonry wall in accordance with Fig. 8,
10 is an exemplary view showing a welded wire mesh exposed in the cut-away grooves of the upper beam connection part and the column connection part of the L-type PC panel of the present invention, and the anchor bolts fixed to the first anchor hole and the third anchor hole,
11 is an exemplary view illustrating a state in which an anchor bolt fixed to a second anchor hole is welded to a lower beak joint portion and a lower bean joint surface of an L-shaped PC panel according to the present invention,
12 is an exemplary view showing a state in which a gap (gap) is filled in a cutout groove of an L-type PC panel and each joint portion using a cement mortar or an anchor injection solution according to an embodiment of the present invention,
13 is an exemplary view showing a state in which a gap is filled using a mortar or an anchor injection solution in FIG. 12,
FIG. 14 is an exemplary view showing a state in which an L-shaped PC panel is installed on a wall surface of a surrounding window of the present invention,
Fig. 15 is a perspective view showing a PC panel that can be used as an L-type PC panel in a U-shape using two L-type PC panels when the wall surface around the window is " U "
Fig. 16 is an exemplary view showing a case where the wall surface around the window of the present invention is " U " -shaped,
Fig. 17 shows an embodiment in which a drilled anchor hole is formed on a column located on one side of the " U " -shaped wall surface of the present invention,
18 shows a state in which mortar is applied to the wall surface of the U-shaped masonry of the present invention and an adhesive of an anchor injection solution is applied to the outer surface thereof,
19 is an exemplary view showing a state in which a primary L-type PC panel is installed on a wall surface of a U-shaped mock-up wall of the present invention,
FIG. 20 is an exemplary view showing a state in which a primary L-type PC panel is installed in FIG.
Fig. 21 is a cross-sectional view showing a state in which an L-shaped PC panel is installed in a " U " shape wall surface of the present invention according to the present invention and then an anchor bolt fixed to the first anchor hole and a third anchor Fig. 10 is an exemplary view showing a state in which an anchor bolt fixed to a ball is welded;
Fig. 22 is a schematic view showing a state in which an L-shaped PC panel is installed in a " U " shape on a U-shaped masonry wall surface of the present invention and an anchor bolt fixed to a second anchor hole formed on a lower- Fig.
23 is an exemplary view showing a state in which an L-shaped PC panel is installed in a "U" shape on a "U" shaped masonry wall surface of the present invention, and then an incision groove and a frame gap (interval) are filled with an adhesive of a mortar or an anchor injection solution.
Fig. 24 is an exemplary view showing a state in which the L-shaped PC panel of the present invention is installed on the masonry wall in a " U "
Fig. 25 is an exemplary view showing a state in which a L-shaped PC panel of the present invention is installed on a masonry wall in a " U " shape, then a finishing member is installed on an outer surface thereof,
Fig. 26 shows another embodiment of the present invention in which a PC panel is installed in a " - " shape on a masonry wall.

Hereinafter, a method of remodeling a building using an L-type PC panel according to an embodiment of the present invention will be described in detail.

Step 1: washing the masonry wall and casting cement mortar

First, the L-shaped masonry wall (160) around the window of the building to be remodeled is cleaned to remove foreign matter, dried, and then the cement mortar is applied.

When the cement mortar is applied to the surface of the L-shaped masonry wall 160, the existing masonry walls are rugged and have many grooves, so that when the adhesive of the anchor injection solution is directly applied, not only is the amount of the adhesive of the anchor injection solution increased, And the cement mortar is plastered in an unrecognized relation, and the outer surface is plated.

The anchor injection solution may be an epoxy resin or other construction adhesives.

Step 2: forming upper and lower beams and an anchor hole on one side of the column

In this process, when the L-type PC panel 100 is fixed only with an adhesive when it is installed on the coarse wall surface, the fixing means is weak and the L-type PC panel 100 is fixed to the column 140 and the beams 120 and 130 Type PC panel 100 is fixed to the upper and lower beams 120 and 130 and the column 140 in order to fix the four ends of the L-type PC panel 100 to the upper and lower beams 130 and 140, 141, a second anchor hole 142, a third anchor hole 143, and a fourth anchor hole 144 are formed.

Step 3: Apply cement mortar to the masonry wall surface and apply the anchor injection solution

The anchor injection liquid is uniformly applied to the surface of the rough wall 160 surrounding the window where the L-shaped PC panel 100 is supported.

After the anchor injection liquid is applied to the wall surface, the first anchor hole 141, the second anchor hole 142, and the second anchor hole 140 are formed on the bottom surface of the upper beam 120 and the upper surface of the lower beam 130, The third anchor hole 143 and the fourth anchor hole 144 are filled with the anchor injection solution.

When the anchor injection liquid is filled in the first anchor hole 141, the second anchor hole 142, the third anchor hole 143 and the fourth anchor hole 144 and then the anchor bolt 150 is installed, Type PC panel 100, the anchor injection liquid does not harden immediately. Therefore, the anchor bolt 150 fixes the L-type PC panel 100 by inserting it into the anchor holes after installing the L-type PC panel 100.

Fourth step: Step of installing and welding L type PC panel to the masonry wall

The prepared L-shaped PC panel 100 is attached to the surface of the masonry wall 160 coated with the anchor injection liquid.

After the L-shaped PC panel 100 is attached to the surface of the masonry wall 160 as described above, the anchor bolts 150 are inserted into the first anchor holes 141, the second anchor holes 142, The third anchor hole 143, and the fourth anchor hole 144, respectively.

The anchor bolts 150 fixed to the first anchor holes 141, the second anchor holes 142, the third anchor holes 143 and the fourth anchor holes 144 are fixed to the upper side of the L-shaped PC panel 100 The welded wire mesh 103 and the column joint 140 corresponding to the RC column 140 are formed in the cutout groove 104 of the welded wire net 103 and the lower welded portion 112 exposed in the cutout groove 104 of the beam joint portion 110 Welded to the welded wire mesh 103 exposed in the cutout groove 104 of the side panel panel 113 and the welded wire net 103 exposed in the cutout groove 104 of the side PC panel bonded portion 114.

As described above, the L-type PC panel 100 is bonded and fixed to the surface of the coarse wall 160 by using an anchor injection liquid, and each of the welded wire rods 104 exposed in the cut- The surface of the L-shaped PC panel 100 is fixed to the masonry wall 160 and the four ends of the L-shaped PC panel 100 are fixed to the upper and lower beams 120 and 130 and the anchor bolts 150, The seismic performance of the support is increased by increasing the lateral support force.

Step 5: Filling the gap between the PC panel and the beam and column

After the L-shaped PC panel 100 is attached to the surface of the masonry wall 160 and the welded wire mesh 103 and the anchor bolts 150 are welded together, the upper and lower beam connections 110 and 112, A gap is formed between the side PC panel joining portion 114 and the upper and lower beams 120 and 130 and the column 140 to form a gap.

 Since the L-shaped PC panel 100 of the present invention is a concrete product, when the panel, the column, the panel, and the beam are arranged to correspond to each other, a gap is generated at a predetermined distance.

The gaps generated by filling the gaps and the incision grooves with the cement mortar or the anchor injection resin can maintain the rigidity and improve the heat insulation effect of the wall.

After filling the gap (gap) and the incision groove with the cement mortar, the finish material such as tile and marble is installed to complete the construction of the L-shaped PC panel 100 on the masonry wall.

As another embodiment of the present invention, when the shape of the wall surface around the window is " U ", two L-type PC panels are attached to the wall surface of the " U " 160), so that the L type PC panel is installed in the U type.

When the L-type PC panel 100 is installed on the "U" shaped building wall 160 side of the window to be remodeled, two L-type PC panels 100 are placed on the "U" ┗┛ "type.

The construction method of installing the two L-type PC panels 100 in the "┗" type is the same as the first to fifth methods in the construction method of the L-type PC panel 100).

Accordingly, when the L-shaped PC panel 100 is installed at the lower left and right of the window, it is installed on one side in the form of a primary "┗", and then mounted on the other side in a "┛" shape.

Two L-type PC panels 100 are arranged in a " ┛ " -shaped shape and installed in a U-shape, and mortar is cured in the respective joints of the installed L-shaped PC panels 100 to cure the joints .

Mortar is placed in each joint as described above, and after the curing, the closure member 170 is installed on the outer surface.

The closing member 170 is filled with the cement mortar or concrete through the gap between the upper beam connecting portion 110, the column connecting portion 113 and the PC panel connecting portion 114 of the L-type PC panel 100, .

The finishing material is selected from among ordinary finishing materials such as marble, tile, paint, and other panels.

The PC panel to be mounted on the L-shaped masonry wall or the U-shaped masonry wall described in the present invention is formed to be thinner than the L-type PC panel which shatters the existing masonry wall 160.

That is, according to the present invention, the mortar is applied to the wall surface while the masonry wall (160) surface around the existing building window is maintained, and the anchor injection liquid is applied and then the L type PC panel is installed. There is no problem of projecting from a column or a beam. However, when the conventional L-type PC panel is used, it can be protruded. Therefore, the existing wall can not be used as it is. Is used in addition to the existing masonry wall (160) surface, it is constructed in the free space range where the masonry wall, the upper and lower beams and the columns are left, and there is no problem that the L-type PC panel protrudes, The L-type PC panel can be provided.

Hereinafter, the attached drawings of the present invention will be described in detail with reference to the construction method.

Fig. 3 is a perspective view showing an L-type PC panel having an upper and lower beam connecting portion, a column connecting portion and a PC panel connecting portion as an L-type PC panel according to the present invention, Fig. 4 is a cross- And the L-type PC panel 100 according to the present invention is welded with a wire mesh unlike the conventional PC panel reinforcement method for thinning the thickness.

That is, in order to form the L-type PC panel 100 into a thickness of 5 to 10 cm, a welded wire mesh used as a reinforcing bar is installed inside.

 The welded wire mesh embedded in the L-shaped PC panel 100 may be a conventional thick wire mesh network distributed in the market or a metal mesh welded wire netting, Wire mesh can be used.

Accordingly, since the reinforcing bars are overlapped with each other, the area where the reinforcing bars intersect is doubled. Therefore, in order to embed the reinforcing bars, the diameter of the L-type PC panel 100 must be thicker, There was a limit to reducing.

3 and 4, when the L-shaped PC panel 100 is manufactured, welding is performed so as to prevent the horizontal member 102 and the vertical member 101 of the welded metal wire embedded in the panel from overlapping each other. The thickness of the L-shaped PC panel 100 can be reduced by using a wire net so that the diameter of one reinforcing bar can be filled with concrete.

5 to 14 below show a process sequence in which the L-type PC panel of the present invention is installed on the L-shaped masonry wall surface around the window.

FIG. 5 is a schematic view showing the rough wall surface around the window where the L-type PC panel of the present invention is installed. In order to clean the wall surface before the construction with the L-shaped wall surface around the window to remove the foreign substances and uniformly plate the wall surface, Apply mortar and plaster.

6 is a view showing a state in which an anchor hole is drilled in an RC column to install the L-type PC panel of the present invention. In order to fix and fix the installed L-type PC panel, an L-shaped PC And an anchor bolt is formed at a position corresponding to the incision groove of the panel so that the anchor bolt can be installed.

The formed anchor holes 141, 142, 143, and 144 are formed by a drill or the like. The first anchor hole 141, the second anchor hole 142, the third anchor hole 143, and the fourth anchor hole 144 are formed by drill.

7 is a view illustrating a state in which an anchor injection liquid is applied to a masonry wall surface on which an L-type PC panel according to the present invention is installed, after the masonry is applied, so that the L-type PC panel 100 is closely contacted to the mover wall 160 So that the L-shaped PC panel 100 can be bonded to the wall surface.

8 is a view showing a state in which an L-shaped PC panel having a joining portion, a column joining portion and a PC panel joining portion is installed on a masonry wall around a window by a crane using wire as an embodiment of the present invention.

Since the L-type PC panel 100 according to the present invention is a reinforced concrete panel, even if the thickness is made thin, it is a weight that can not be handled by a person due to the weight of concrete. Therefore, It is preferable to perform the operation of lifting or moving the motor 100.

Fig. 9 is a diagram showing an example in which the L-shaped PC panel is adhered to the masonry wall by the above-mentioned Fig. 8, in which cement mortar is applied to the masonry wall 160 and an anchor injection solution is applied to the outer surface thereof, The panel 100 is bonded and fixed thereto.

When the L-shaped PC panel 100 is adhered to the masonry wall 160 using an anchor injection solution and then hardened, the existing masonry wall 160 and the L-type PC panel 100 are integrated to increase the lateral support force .

10 is a cross-sectional view of the L-shaped PC panel according to the present invention, showing a welded wire mesh 103 exposed in the cut-away grooves of the upper beam connection part and the column connection part, and anchor bolts (not shown) fixed to the first anchor hole 141 and the third anchor hole 143 11 is an explanatory view showing a state in which the anchor bolt 150 is welded to the second anchor hole 142 of the lower beam top surface of the L type PC panel 100 according to the present invention. Type PC panel 100 after the bonding of the L-type PC panel 100 to the masonry wall 160 by using an anchor injection liquid resin is performed as shown in FIG. , And the side PC panel junctions are fixedly fixed to the upper and lower beams 120 and 130 and the column 140, respectively.

That is, the welded wire mesh 103 exposed to the cutout grooves 104 formed in the upper and lower welding portions 110 and 112, the column joint portion 113, and the PC panel joint portion 114 of the L-shaped PC panel 100 The anchor bolts 150 fixed to the first anchor holes 141 and the second anchor holes 142 formed in the upper and lower beams and the cutout grooves 104 formed in the column joint portions 113 and the side PC panel joint portions 114 The welded wire mesh 103 of the exposed vertical member 101 is welded.

According to another embodiment of the present invention, the L-type PC panel includes an upper beam connecting portion, a lower beam connecting portion, a column connecting portion, and a PC panel connecting portion, wherein each of the joining portions has a plurality of cutting grooves, The vertical and horizontal members of the welded wire mesh are cut to be welded to the anchor bolts.

That is, the vertical and horizontal members of the welded wire mesh exposed in the plurality of cut-away grooves are cut at the respective joint portions, and the welded portions are welded to the left and right sides of the anchor bolts. .

The welded wire mesh 103 exposed in the cutout grooves 104 of the joints and the anchor bolts fixed to the first, second, third and fourth anchor holes 141, 142, 143 and 144 150) are welded and fixed so that the L-shaped PC panel 100 is fixed to the upper and lower beams and the pillars on both sides, thereby increasing the lateral support force so as to have an earthquake-proof performance capable of withstanding an external impact such as an earthquake.

In the description of the present invention, the anchor holes 141, 142, 143 and 144 are positioned for convenience, but they are formed to fix the L-type PC panel 100 to the upper and lower beams and the pillars on both sides The anchor holes may be formed in a plurality of locations at selected positions as needed.

12 is an exemplary view showing a state in which a gap is filled in a cutout groove of an L-type PC panel and each joint portion using a mortar or an anchor injection solution as an embodiment according to the present invention, and the upper and lower beams, And the incision grooves formed at the respective joints are filled with cement mortar, anchor injection solution, concrete, etc. It is more effective to fill the gap and incision grooves with the cement mortar.

That is, since the welded wire mesh 103 and the anchor bolt 150 welded to the cutout groove 104 are metal, they are advantageous in minimizing corrosion when they are embedded in cement or concrete.

FIG. 13 is an exemplary view showing a state in which a gap is filled using a mortar or an anchor injection solution in FIG. 12, and a finish member construction is completed on the surface.

The closing member construction is performed such that the upper and lower beads 110, 112, the column joint 113 and the PC panel joint 114 of the L-type PC panel 100 are cemented with mortar or concrete, And then the closure member 170 is installed.

The closure member 170 may be formed of any one of marble, tile, paint, and other panels.

FIG. 14 shows a state in which the L-shaped PC panel is installed on the wall surface of the surrounding window of the present invention, and the installation of the finishing member and the installation of the window are completed on the outer surface.

As described above, the remodeling construction is completed by adding the L-type PC panel 100 to the L-shaped masonry wall 160 in the vicinity of the window.

15 to 25 below illustrate a mortar method in which two L-type PC panels are installed in a "┛" shape using an L-type PC panel on a U-shaped masonry wall surface. 14 and the same construction method as that of Fig.

Fig. 15 is a perspective view showing a PC panel that can be used as a U-type PC panel using two L-type PC panels when the wall surface of a window around the window is " U " Type PC panel 100 on the surface of the mold wall 160 so as to be U-shaped.

The L-type PC panel 100 installed on the U-shaped masonry wall 160 has the same structure as that of the PC panel shown in FIGS. 3 and 4. The horizontal member 102 and the vertical member 101 are welded Welded wire net 103 is laid.

Fig. 16 is an illustration showing a case where the wall surface of the periphery of the window of the present invention is " U " shape, and the surface of the wall 160 is cleaned to remove foreign matter and dried, and then the cement mortar is applied to the outer surface .

17 shows an embodiment in which a drilled anchor hole is formed on a column located on one side of the " U " -shaped wall surface of the present invention, and an L-shaped PC panel 100 The upper beam 120 and the lower beam 120 corresponding to the cutout grooves 104 formed at the respective joint portions of the L-shaped PC panel 100 are fixed to the upper and lower beams 120 and 130 and the column 140, 130 and the column 140 by an anchor hole.

The anchor hole includes a first anchor hole 141 formed on the bottom surface of the upper beam 120, a second anchor hole 142 formed on the upper surface of the lower beam 130, a third anchor hole 142 143 and a fourth anchor hole 144 are formed.

Fig. 18 shows a state in which a mortar is applied to a "U" shaped masonry wall surface of the present invention and an adhesive of an anchor injection solution is applied to the outer surface thereof, and a cement mortar is applied to the surface of the "U" And the anchor injection liquid is applied to the outer surface of the L-shaped PC panel 100 so that the L-shaped PC panel 100 can be bonded.

When the anchor injection liquid resin is directly applied to the surface of the U-shaped building wall 160 without applying the cement mortar, the rough uneven surface of the masonry wall 160 can not be filled, so that the L-type PC panel 100 It is difficult to integrate the masonry wall 160 and the L-type PC panel 100 to increase the efficiency of supporting force in the lateral direction. Therefore, It is possible to maximize the supporting force by bonding the L-type PC panel after applying the liquid.

19 is an exemplary view showing a state in which a primary L-type PC panel is installed on a "U" shaped masonry wall surface of the present invention, FIG. 20 is a cross- The first L-type PC panel 100 is installed on the U-shaped masonry wall surface, and then the other L-type PC panel 100 is mounted on the U- Quot ;, so that the L-shaped PC panel 100 can be installed in the " U " shape on the U-shaped masonry wall surface.

21 is a sectional view showing a state in which the L-shaped PC panel is installed on the U-shaped masonry wall surface of the present invention in a "U" shape and then welded to the welded wire mesh 103 of the upper beam- The anchor bolt 150 fixed to the first anchor hole 141 and the anchor bolt 150 fixed to the third anchor hole 143 are welded together.

22 is a perspective view showing a state in which the L-shaped PC panel 100 is installed in a U-shape on the surface of the U-shaped mock wall 160 of the present invention and then the welded wire net 150 of the lower beam- And the anchor bolts 150 fixed to the formed second anchor holes 142 are welded.

21 and 22, a plurality of cut-out grooves 104 formed in the respective joints of the U-shaped L-shaped PC panel 100 are provided with the first anchor holes 141, the second anchor holes 142, The anchor bolts 150 are fixed to the third anchor holes 143 so as to correspond to the vertical welded wire mesh 103 and the horizontal welded wire mesh 103 exposed in the respective cutout grooves 104 and then welded and fixed.

The anchor bolts 150 fixed to the respective anchor holes are inserted into the respective anchor holes in the state that the anchor injection solution resin is filled, and the anchor injection holes 160 are inserted into the anchor bolts 150 without being hardened. Even if they are welded to the welded wire mesh 103, they are hardened as time goes by to fix the respective joints, so there is no problem in fixing the anchor bolts 150.

Fig. 23 is a sectional view showing the U-shaped PC wall panel of the present invention having U-shaped PC wall panels mounted thereon in a U-shape, and filling the cutout grooves and rim holes with a mortar or anchor injection solution adhesive.

21 and 22, the anchor bolts 150 fixed to the respective anchor holes are inserted into the welded wire mesh 103 exposed at the respective cutout grooves 104 and the welded joints and the cutout grooves 104 and the L type PC panel 100) A gap is generated between the edge of the edge and each beam and column, and a groove is generated, which is filled with cement mortar, and the outer surface is flattened by flat plate.

Fig. 24 shows a state in which the L-shaped PC panel of the present invention is installed on the masonry wall in a " U "

The closure member 170 may be formed of any one of marble, tile, paint, and other panels.

Fig. 25 is a view showing a state in which the L-shaped PC panel according to the present invention is installed in a mating wall in a " U "shape;

26 shows another embodiment of the present invention in which a PC panel is installed in a "

The "L" shaped PC panel, the "U" shaped PC panel of the present invention as described above. Each of the " - " -shaped PC panels has a plurality of cut-out grooves formed at its edges, and the upper and lower boom joints, the column joints, and the side PC panel joints are formed such that a part of the welded wire mesh embedded in the cut- It is easy to fix easily on the beam and the like and it is possible to increase the lateral supporting force.

Since the seismic wave is applied horizontally when the earthquake occurs, the earthquake wave is generated in the opposite direction on the side where the earthquake occurred, so that the building receives the seismic waves horizontally The seismic performance is obtained.

Therefore, according to the present invention, an L-type PC panel (100) installed between a column and a beam in an existing school building or a public institution building without a seismic design is constructed so as to be suitable for seismic design, Not only will it not collapse, but it will also allow enough time for evacuees to evacuate by preventing the building from collapsing.

The L-type PC panel 100 according to the present invention, which is manufactured and installed to be suitable for earthquake-resistant design when a weak support wave occurs, is suitably adapted to the horizontal wave, thereby preventing deformation and breakage of the building.

As described above, the present invention can increase the resistance to earthquake-resistance in existing beam-column structures constructed using a precast concrete wall panel (model PC wall panel) So that the L-type PC panel can be installed and bonded in the "L" type or "U" type type after the bonding agent such as an anchor injection liquid resin is applied to the L type or U type wall surface To a method of reinforcing a masonry wall with a window by using a partial PC wall panel so as to provide an earthquake-proof method using an attachable PC wall panel and its PC wall panel.

100: L-type PC panel 101: vertical member
102: Horizontal material 103: Welded wire mesh
104: incision groove 110: upper beam connection
112: lower beam connecting portion 113: column connecting portion
114: side PC panel junction 120: upper beam
130: Lower beam 140: Column
141: first anchor ball 142: second anchor ball
143: third anchor ball 144: fourth anchor ball
150: Anchor bolt 160: Coarse wall
170: Closing member

Claims (8)

An L-type PC panel;
Wherein the L-type PC panel comprises: a welded wire net made of a vertical member and a horizontal member welded together;
An upper beam connecting portion and a lower beam connecting portion formed with a plurality of cut-out grooves at the upper and lower ends of the L-shaped PC panel so that a part of the welded wire mesh buried therein is exposed in the cutout groove;
A plurality of cut-out grooves formed on one side of the L-shaped PC panel so as to be joined to the column corresponding to one side of the L-shaped PC panel, and a part of the welded wire mesh buried therein is exposed in the cut-out groove;
And a side PC panel joining part in which a plurality of cutting grooves are formed on the other side of the lower column joining part of the L type PC panel so that the welding wire mesh is exposed in the cutting groove. L-type PC panel to reinforce. The method according to claim 1,
Wherein the L-type PC panel is formed by welding a wire net made of a single piece of welding material on the same line without overlapping the vertical member and the horizontal member embedded in the L-shaped PC panel so that the thickness of the L-shaped PC panel can be made thin. L-type PC panel that reinforces the masonry wall using the windows. The method of claim 1, wherein
Wherein the L-shaped PC panel forms an upper beam connecting portion, a lower beam connecting portion, a column connecting portion, and a side PC panel connecting portion, wherein a plurality of cutting grooves are formed in the respective bonding portions, And a plurality of welded portions are welded together with the bolts. The L-type PC panel reinforces the masonry wall provided with the windows by using the partial PC wall panel. delete The method of reinforcing the outer peripheral wall of the window using the L-shaped PC panel,
Washing the masonry wall around the window corresponding to the L-shaped PC panel of the building to be remodeled, removing the foreign matter, drying and then applying the mortar with the dried cement mortar;
Drilling a third anchor hole and a fourth anchor hole on the first anchor hole on the upper bare surface and the second anchor hole on the upper bare surface and the side surface and the side surface of the column so that the L type PC panel can be fixed;
Applying an anchor injection liquid resin to the plastered wall surface around the window corresponding to the L-shaped PC panel;
Filling the anchor injection solution into the first anchor hole, the second anchor hole, the third anchor hole, and the fourth anchor hole, which are perforated on one surface of the upper and lower bows,
After attaching the prepared L-type PC panel to the masonry wall surface coated with the anchor injection liquid, the first anchor ball, the second anchor ball, the third anchor ball, and the anchor bolt one end Fastening;
The anchor bolts, which are fixed by being fixed to the first anchor holes, the second anchor holes, the third anchor holes, and the fourth anchor holes, are welded to the welded wire mesh exposed in the incision groove of the upper welded portion, And welding the welded wire mesh exposed in a cut groove of the column joint corresponding to the RC column and a cut groove of the PC panel joint;
And filling the mortar or anchor injection liquid into the gap and the incision grooves of the upper and lower beveled portions, the column joint portions, and the PC panel joints, and then applying a finish material to the outer surface, How to reinforce walls. 6. The method of claim 5,
Wherein the L-shaped PC panel forms an upper beam connecting portion, a lower beam connecting portion, a column connecting portion and a PC panel connecting portion, wherein a plurality of cutting grooves are formed in the respective bonding portions, and a welding wire mesh is exposed to the plurality of cutting grooves, Wherein the L-shaped PC panel is fixed by welding with an anchor bolt fixed to the wall of the building. 6. The method of claim 5,
The L-type PC panel is installed in the same way as the method of reinforcing the coarse wall of the above-mentioned Clause 5, and two L-type PC panels are installed so as to correspond to the coarse wall surface of the " U & Wherein the window is provided with a partial PC wall panel. 6. The method of claim 5,
The L-type PC panel is installed in the same way as the method of reinforcing the coarse wall of the above-mentioned Clause 5, and the L-type PC panel is installed so as to correspond to the lower coarse wall surface of the " Wherein the partial PC wall panel is used to reinforce a masonry wall provided with a window.

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