KR101989164B1 - Pre-stressing anchorage apparatus for strengthening sheer capacity of retaining wall, and method using the same - Google Patents

Abstract

When the shear performance of the bearing wall against earthquake load is insufficient in remodeling works such as apartment buildings such as wall-type residential apartment buildings, reinforcement method by introduction of strand laying and prestressing in terms of mechanical performance is applied, but the thickness, It is possible to prevent the restriction on the use of the remodeling plane from being caused by having a specific shape applicable to the straight type bearing wall, the T-shaped bearing wall and the L-shaped bearing wall corresponding to the specification, And the prestressing device is installed to surround the vertical wall reinforcing bar while maintaining only the minimum dimension of the wedge fixing portion, thereby avoiding the interference of the conventional wall vertical reinforcing bar , A pre-stress fixing device for reinforcing the front end wall of the wall, and The bearing wall shear reinforcement method is provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pre-stress fixing apparatus for reinforcing a front end wall of a wall, and a front wall reinforcement method using the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reinforcement of a fore-wall wall shear, and more particularly, in a remodeling operation of a residential building such as a wall-structured apartment, a pre- stress is introduced to reinforce a retaining wall of a remodeling building And more particularly, to a prestressing apparatus for fixing a strand and a method of reinforcing a shear wall using the same.

In general, remodeling of a building refers to the construction of a building that is enlarged, rebuilt, or repaired for the purpose of restraining deterioration of the building and improving its function. Recently, due to advantages such as relaxation of various laws and remodeling of resources, The demand for apartments is increasing.

These remodeling works have mainly been focused on special buildings such as offices, shopping malls, and hospitals in the early days. Recently, however, remodeling of residential buildings, especially, apartment buildings such as schools and apartments is being activated.

Typically, remodeling works usually involve horizontal or vertical enlargement. In the case of the remodeling of the apartment, which is prescribed by the Housing Act, there is a method of expanding to the front of the building within the allowable range of 30% And a method of expanding each one-half to the backside.

These vertical and horizontal enlargements all contribute to increasing the load on the existing structure of the building. In this case, the load has a vertical downward load due to the fixed load and the load load, and there is a seismic load related to the increase in the weight of the building and the increase in the number of floors. Such an increase in load requires reinforcement of pillars, walls and foundations which support the building.

Fig. 1 is a view for explaining horizontal enlargement and vertical enlargement of a remodeling building, showing that the remodeling building involves horizontal enlargement and vertical enlargement.

1, in the case of a remodeling building 10, for example, a conventional apartment house, an existing file 11 installed on the ground 20 and an existing base plate 12 are installed, and the remodeling building 10 The additional pile 31 and the additional base plate 32 are installed at the side of the remodeling building 10 to construct the horizontal enlarging portion 30 and further reinforce the columns, So that the part 40 is constructed. At this time, it is necessary to reinforce the column, the wall, and the foundation not only at the time of construction of the vertical enlargement portion 40 but also at the time of constructing the horizontal enlargement portion 30. [

On the other hand, when the shear performance of the bearing wall against the earthquake load is insufficient in the remodeling work of the wall apartment, etc., general adhesive reinforcement methods such as the carbon fiber sheet bonding method and the steel plate bonding method can not be applied, Reinforcement is difficult.

Accordingly, three kinds of countermeasures have been considered as enhancement techniques of the front end bearing wall shear performance which have been examined so far. (2) a method of forming grooves in the horizontal and vertical directions of the bearing walls and reinforcing them by embedding reinforcing bars or the like (bearing wall grooving and reinforcing fill method); and 3) ) There is a method (prestressing reinforcement method) in which a groove is formed in the horizontal direction of a proof wall, a prestressed steel line is disposed apart from a concrete surface, and another fixation device is provided at the end of the proof wall to tense and fix.

However, the problems of the prior art in the above-mentioned three kinds of countermeasures are as follows. Specifically, in the case of the reinforcing method by cross-sectional enlargement, a method of placing reinforcing bars and pouring concrete exhibits dynamically superior performance, but there is a problem that the construction period and the construction cost increase.

Also, in the case of the method of forming the bearing wall grooves and the method of filling the reinforcing bars, it is difficult to form the grooves enough to embed the reinforcing bars when the reinforcing bars are irregularly arranged on the existing bearing walls. There is a problem that the fixing strength can not be secured.

In the case of the prestressing reinforcing method, the fixing device should be installed at the end of the proof wall. However, depending on the method of installing the strand after forming the groove in the proof wall or the method of installing it on the surface, Therefore, there is a problem that there are many limitations in installing the fixing device when the shape of the bearing wall is formed in L or T shape.

Korean Registered Patent No. 10-1828804 filed on March 20, 2017, entitled "Seismic Retension Method of Vertical Extension Apartment" Korean Patent No. 10-1277752 filed on Jan. 28, 2011, entitled "Remodeling construction method and its prefabricated installation of outer wall precast concrete panel in inner part of building beam-column structure " Cast Concrete Panel " Korean Patent No. 10-1242978 filed on December 9, 2011, entitled "Method of Construction of Partition Wall Using Seismic Load Absorption Device Constructed with Slit Type Web" Korean Patent No. 10-1277751 filed on Apr. 27, 2010, entitled "Remodeling Reinforcing Method for Precast Blocks and Beam-Column Buildings Using the Blocks" Korean Patent No. 10-951869 filed on June 9, 2009, entitled "Remodeling Building & Remodeling < RTI ID = 0.0 & Korean Patent No. 10-898389 filed on Sep. 25, 2008, entitled "Seismic Retrofitting Core of Building < Korean Registered Patent No. 10-693137 filed on June 15, 2004, entitled "Structural Reinforcement Structure Using Prestress"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and an object of the present invention is to provide a structure and method for remodeling a residential property such as a residential building with a wall structure, By applying the reinforcement method by the introduction of the prestress, there is a restriction on the use of the remodeling plane by having a specific shape applicable to the straight wall, the T wall and the L wall in accordance with the thickness, shape and specification of the wall. The present invention provides a pre-stress fixing device for reinforcing a front end of a front end wall, and a method of reinforcing a front end shear force using the same.

Another object of the present invention is to provide a pre-stress fixing apparatus for reinforcing a front end bearing wall which can easily secure settlement strength at the ends of a front end wall, which is a limitation of the conventional pre- Method.

Another object of the present invention is to provide a preestress fixing device for preventing the interference of the conventional vertical wall reinforcing bar by installing the vertical wall reinforcing bar while maintaining the minimum dimension of the wedge fixing portion, And a method of reinforcing a shear wall by using the same.

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The present invention also provides a prestressing apparatus for reinforcing a front wall of a building, such as a residential building having a wall structure, A 棺 -shaped fixation port in which a stranded wire insertion portion and a C-shaped groove are formed, and is embedded in an end groove of both side walls; A stranded wire arranged to penetrate a stranded wire inserting portion of the C-shaped fixing member and into which a prestress is introduced; And a wedge inserted into the wedge fixing portion formed in the 棺 -type fixing member to fix the strand of the strand while the prestress is introduced into the strand, wherein the 慣 -type fixing member has a thickness Shaped bar having a specific shape corresponding to its shape and specification,
Wherein the U-shaped fixing member is fitted in the end grooves of the load bearing wall so as to avoid interference of the vertical reinforcing bars embedded in the load bearing walls, So that the prestressing fixing device is installed so as to surround the vertical wall reinforcing bar while maintaining only the minimum dimension of the wedge fixing portion.

Here, in the case of a prestress reinforcing method using another mechanical fixing port without using the wedge, the wedge installation may be omitted and another mechanical fixing method may be used.

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Here, the C-shaped fixing member may be installed at a T-shaped bearing wall intersection point or an L-shaped bearing wall intersection point.

Here, the stranded wire may be installed on the bearing wall surface.

Here, the strand may be embedded in the horizontal groove after the groove is formed in the horizontal direction of the load bearing wall, and the horizontal groove may be subjected to the surface finishing after the load bearing wall is reinforced at the front end.

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In another aspect of the present invention, there is provided a method of reinforcing a bearing wall shear by using a prestressing apparatus according to the present invention is a method for reinforcing a bearing wall shear by using a prestressing apparatus for reinforcing a bearing wall shear of a remodeling building, Claims [1] A method of reinforcing a front wall of a forklift, comprising the steps of: a) confirming a position and a thickness of a front wall required for shear reinforcement for a remodeling work; b) forming an end groove and a horizontal groove in the load bearing wall; c) fitting a C-shaped fixing member into the end grooves of the two side walls so as to avoid vertical reinforcement interference of the supporting wall; d) embedding a strand of strand through the stranded wire insertion portion of the C-shaped fixing member in a horizontal groove of the load bearing wall; e) introducing a prestress into the strand using a tensional force introducing device; And f) inserting a wedge into the wedge fixing portion formed in the 慣 -shaped fixing port so as to reinforce the front end of the bearing, wherein the 慣 -shaped fixing port has a thickness, shape, and specification Shaped rod having a specific shape corresponding to the shape of the bar,
The 棺 -type fixing unit in the step c) is formed in a U shape so as to keep only the minimum dimension of the wedge fixing unit while avoiding the interference of the vertical reinforcing bar of the proof wall, so that the prestressing fixing unit fixes the wedge fixing unit So as to enclose the light emitting diode.

Here, if there is a margin in the endurance wall finishing thickness in step a), the strand can be installed on the bearing wall surface by omitting the horizontal grooving of the bearing wall of step b).

According to the present invention, when the shear performance of the resisting wall against resisting seismic loads is insufficient in the remodeling work of a residential building such as a residential building with a wall structure, a reinforcing method by arranging a strand of strand superior in terms of mechanical performance and introducing a prestress is applied, The T-shaped bearing wall, and the L-shaped bearing wall corresponding to the thickness, shape, and specification of each of the L-shaped bearing walls and the L-shaped bearing wall.

According to the present invention, it is possible to easily secure the settlement proof force at the end of the proof wall, which is a limit of the conventional proof wall grooving and reinforcing bar burial method.

According to the present invention, since the prestressing fixing device is installed so as to enclose the vertical wall reinforcing bar while maintaining the minimum dimension of the wedge fixing portion, the interference of the conventional wall vertical reinforcing bar can be avoided.

1 is a view for explaining horizontal enlargement and vertical enlargement of a remodeling building.
FIG. 2 is a front view showing a remodeling building in which a pre-stress fixing device for reinforcing a proof wall front end according to an embodiment of the present invention is installed.
FIG. 3 is a side view showing a remodeling building in which a pre-stress fixing device for reinforcing a proof wall shear is installed according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating a prestressing device for reinforcing a front end wall of a wall according to an exemplary embodiment of the present invention, which is formed as a flat fixture.
FIG. 5 is a perspective view illustrating a prestressing device for reinforcing a front wall of a front wall according to an embodiment of the present invention, which is formed with a C-shaped fixing member.
FIG. 6 is a view showing a prismatic fixing device for reinforcing a front wall of a proof wall according to an embodiment of the present invention, in which a straight fixture is installed at the end of the proof wall and a strand is provided on the proof wall.
FIG. 7 is a view showing a prismatic fixing device for reinforcing a front end of a proof wall according to an embodiment of the present invention, in which a straight fixture is installed at the end of a proof wall and a strand is embedded in a horizontal groove.
FIG. 8 is a view showing a C-shaped fixing member embedded in the end wall of a proof wall in a prestressing device for reinforcing a front wall of a proof wall according to an embodiment of the present invention, and a strand is embedded in a horizontal groove.
FIG. 9 is a plan view showing a flat-type fixing unit provided on a straight bearing wall in a pre-stress fixing apparatus for reinforcing a front wall of a bearing according to an embodiment of the present invention.
10 is a plan view showing a U-shaped fixing member provided on a T-shaped bearing wall in a pre-stress fixing apparatus for reinforcing a front wall of a bearing according to an embodiment of the present invention.
11 is a plan view showing a U-shaped fixing member provided on an L-shaped bearing wall in a pre-stress fixing apparatus for reinforcing a front wall of a bearing wall according to an embodiment of the present invention.
12 is an operational flowchart illustrating the installation of a straight fixture in the method of reinforcing a bearing wall shear by using a prestressing apparatus according to an embodiment of the present invention.
13 is an operational flowchart illustrating the installation of a C-shaped fixture in the method of reinforcing a proof wall using a prestressing device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

First, when the shear performance of the resisting wall against the earthquake load is insufficient in the remodeling work of the residential building such as the residential building with the wall structure, the existing general type fastening fixture greatly exceeds the existing wall thickness due to the shape / Therefore, the pre-stress fixing apparatus for reinforcing the front wall of the front wall according to the embodiment of the present invention solves the above problem.

In other words, the prestressing device for reinforcing the front wall of the load wall according to the embodiment of the present invention is a prestressing device for supporting the thickness, shape, and specification of the proof wall so that the reinforcing method by introducing the strand arrangement and the pre- A pre-stress fixing device having a specific shape, which can be applied to a straight-type bearing wall, a T-shaped bearing wall and an L-shaped bearing wall, is provided.

Hereinafter, referring to FIGS. 2 to 11, a prestress fixing apparatus for reinforcing a front wall of a bearing wall according to an embodiment of the present invention will be described, and a prestressing apparatus according to an embodiment of the present invention will be described with reference to FIGS. A description will be given of a method of reinforcing a shear wall by using a shear wall.

[Pre-Stress Fixing Device for Reinforcement of a Forced Wall Shear (500, 600)]

FIG. 2 is a front view showing a remodeling building in which a pre-stress fixing device for reinforcing a front wall of a proof wall is installed according to an embodiment of the present invention. FIG. 3 is a front view of a remade building in which a pre- It is a side view showing a building.

2, a remodeling building 100, for example, an existing apartment house, is formed by constructing a slab 130, a load bearing wall 140, and the like on an existing file 110 and an existing foundation board 120 And may be accompanied by a horizontal enlarging portion or a vertical enlarging portion upon remodeling work. Here, the load bearing wall 140 is a structure made to bear the weight of the roof or upper structure of the building or transmit the force, and is a wall that distributes the space of the building vertically.

As shown in FIG. 2, a plurality of prestressing apparatuses 500 according to an exemplary embodiment of the present invention are installed on the load bearing wall 140 to reinforce the load bearing wall shear.

3 (a), the first prestressing device 500 according to the embodiment of the present invention is installed on the end surface of the bearing wall 140, or as shown in Fig. 3 (b) The second prestressing apparatus 500 according to the embodiment of the present invention may be embedded at the end of the load bearing wall 140.

Meanwhile, FIG. 4 is a perspective view illustrating a prestressing apparatus for reinforcing a front end wall of a bearing wall, according to an embodiment of the present invention, formed as a straight fixation member.

4, a prestressing apparatus 500 for reinforcing a front wall of a supporting wall according to an embodiment of the present invention includes a prestressing fixture for reinforcing the front end of the supporting wall 140 of the remodeling building 100, such as a wall- Apparatus includes a straight fixture 510, a strand 520, and a wedge 530. [

The straight fixation member 510 has at least one wedge fixing portion 511 and a stranded wire insertion portion 512 and is supported by the end face of the support wall 140 in the thickness direction on the end surface of the side support walls 140 . In this case, it is preferable that the flat fixture 510 is a bar-shaped seal having a specific shape corresponding to the thickness, shape, and specification of the load bearing wall 140 so as not to restrict the use of the remodeling plane.

The strand 520 is disposed to penetrate the stranded wire inserting portion 512 of the straight type fixture 510 to introduce a prestress. Here, the strand 520 may be provided on the surface of the load-bearing wall 140, or the strand 520 may be embedded in the horizontal groove after the groove is formed in the horizontal direction of the load-bearing wall 140, The horizontal grooves may be finished after the front end reinforcement of the bearing walls is performed.

The wedge 530 is inserted into the wedge fixing part 511 formed in the straight fixing part 510 to fix the strand 520 in a state where the prestress is introduced into the strand 520. [ Here, in the case of a prestress reinforcing method using another mechanical fastening port without using the wedge 530, the wedge 530 may be omitted and other mechanical fastening methods may be used.

Meanwhile, FIG. 5 is a perspective view illustrating a prestressing device for reinforcing a front end wall of a wall according to an exemplary embodiment of the present invention formed by a C-shaped fixing member.

5, a pre-stress fixing apparatus 600 for reinforcing a front wall of a supporting wall according to an exemplary embodiment of the present invention includes a prestress fixing device 600 for reinforcing the front end of the supporting wall 140 of a remodeling building 100 such as a wall- Type fixing unit 610, a stranded wire 620 and a wedge 630. As shown in Fig.

The wedge fixing portion 611, the stranded wire inserting portion 612 and the U-shaped grooves 613 are formed in the 棺 -type fixing member 610 and are embedded in the end grooves of the side force walls 140. It is preferable that the U-shaped fixing member 610 is a rod-shaped member having a specific shape corresponding to the thickness, shape, and specification of the load bearing wall 140 so as not to restrict the use of the remodeling plane. The U-shaped fixing member 610 is embedded in the end grooves of the load bearing wall 140 so as to avoid the interference of the vertical reinforcing bars 150 embedded in the load bearing wall 140. As described later, The fixing port 610 may be installed at the intersection of the T-shaped bearing wall 140b or the L-shaped bearing wall 140c.

The stranded wire 620 is arranged to penetrate the stranded wire inserting portion 612 of the C-shaped fixing member 610, and a prestress is introduced. At this time, the strand 620 is embedded in the horizontal groove after forming the groove in the horizontal direction of the load bearing wall 140, and the horizontal groove is formed by performing the front end reinforcement of the load bearing wall 140, .

The wedge 630 is inserted into the wedge fixing portion 611 formed in the C-shaped fixing member 610 so as to fix the strand 620 in a state where a prestress is introduced into the strand 620. Here, in the case of a prestress reinforcing method using another mechanical fastening port without using the wedge 630, the wedge 630 may be omitted and other mechanical fixing methods may be used.

FIG. 6 is a view showing a prismatic fixing device for reinforcing a front wall of a front wall according to an embodiment of the present invention, in which a straight fixing member is installed at the end wall of a proof wall and a strand is provided on the front wall of the proof wall. In the pre-stress fixing device for reinforcing the front wall of the bearing wall according to the present invention, a straight-type fixing member is provided at the end of the bearing wall and a stranded wire is embedded in the horizontal groove.

6 and 7, the flat fixation unit 500 includes a plurality of wedge fixing units 500, 500, 500, 500, 500, 500, 500, 500, 500, Shaped rod for supporting the load bearing member 511 and the wedge 530 while supporting the load bearing wall 140.

6, the flat fixture 510 is mounted on the end surface of the load bearing wall 140 in the thickness direction to support the end bearing load bearing 140 in the end face thereof, and the stranded load beam 520 is supported on the load bearing wall 140 surface Can be installed.

7, the flat-type fixing device 510 is installed on the end surface of the load-bearing wall 140 in the thickness direction and supported on the end face of the load-bearing wall 140, So that the strand 520 can be buried.

Meanwhile, FIG. 8 is a view showing a C-shaped fixing member embedded in the end wall of a bearing wall in a prestressing device for reinforcing a front wall of a proof wall according to an embodiment of the present invention, and a strand is embedded in a horizontal groove.

8, the prestressing device 500 for reinforcing the front wall of the load wall according to the embodiment of the present invention includes a C-shaped fixing member 610 for filling the end wall of the load wall. At this time, It is possible to prevent the interference of the vertical reinforcement 150 of the load bearing wall 140 with the load bearing wall 140 while maintaining only the minimum dimension of the wedge fixing portion 611, Shaped bar is formed in a U-shape.

The fixture 610 is embedded in the end of the load bearing wall 140 to be supported on the end face of the load bearing wall 140 and the groove is formed in the horizontal direction of the load bearing wall 140, It can be buried.

FIG. 9 is a plan view of a prismatic fixing device for reinforcing a front wall of a bearing according to an embodiment of the present invention, in which a straight fixing member is installed on a straight bearing wall.

9, in a pre-stress fixing apparatus for reinforcing a front end of a proof wall according to an embodiment of the present invention, when the proof wall 140 has a straight line (I character) A prestress can be introduced after the fixing hole 510 is installed or buried and then the prestressed wire 520 is installed on the surface and the prestressed wire is introduced or the horizontal prestressing is formed to embed the prestressed wire 520.

FIG. 10 is a plan view showing a T-shaped bearing wall and a C-shaped fixing member provided on a surface of a pre-stress fixing apparatus for reinforcing a front wall of a proof wall according to an embodiment of the present invention. FIG. 11 is a cross- FIG. 6 is a plan view showing that an L-shaped bearing wall and a C-shaped fixing member are provided on a surface of a prestressing fixing device for reinforcement.

 In the prestressing device for reinforcing the front wall of the load bearing wall according to the embodiment of the present invention, the shape of the bearing wall 140 is T-shaped as shown in Fig. 10 (a) Shaped fittings 610 are respectively installed or embedded at the ends of the bearing wall 140 and the T-shaped or L-shaped bearing wall intersections, and the stranded wire 620 is molded in the horizontal grooves to be buried, Can be introduced.

10 (b) and 11 (b), a prestress may be introduced after the strand 620 is provided on the surface.

As a result, according to the embodiment of the present invention, special shape fixing holes 510 and 520, which can be installed or buried at the end of the load bearing wall 140, when the shear performance of the existing bearing walls 140, which resist the earthquake load, It is possible to overcome the restriction on the flat use in the remodeling work.

[Method of Reinforcement of Bearing Wall Shear Using a Prestressing Fixing Device

12 is an operational flowchart illustrating the installation of a straight fixture in the method of reinforcing a bearing wall shear by using a prestressing apparatus according to an embodiment of the present invention.

Referring to FIG. 12, a method of reinforcing a proof wall by using a prestress type fixing apparatus according to an exemplary embodiment of the present invention includes a pre-stress fixing apparatus for reinforcing a front end wall 140 of a remodeling building 100 such as a wall- First, the position and thickness of the load bearing wall 140, which require shear reinforcement for remodeling work, are confirmed (S110).

Next, a straight fixation hole 510 is provided in the thickness direction on the end surface of each of the side endurance walls 140 (S120). Shaped bar having a specific shape corresponding to the thickness, shape, and specification of the load-bearing wall 140 so as not to restrict the use of the remodeling plane, Or the horizontal grooves are embedded in the horizontal grooves after the horizontal grooves are formed in the horizontal direction of the load bearing walls 140. The horizontal grooves may be finished after the front end reinforcement of the load bearing walls is performed .

Next, a strand 520 passing through the strand-inserting portion 512 of the straight fixation member 510 is installed (S130).

Next, a prestress is introduced into the strand 520 by using a tension force introducing device (not shown) (S140).

Next, the wedge 530 is inserted into the wedge fixing part 511 formed in the linear fixing part 510 to reinforce the supporting wall 140 (S150) while the prestress is introduced into the strand 520. [

[Method of Reinforcement of Bearing Wall Shear Using a Prestressing Fixing Device (C-shaped Fixing Member)]

13 is an operational flowchart illustrating the installation of a C-shaped fixture in the method of reinforcing a proof wall using a prestressing device according to an embodiment of the present invention.

Referring to FIG. 13, a method of reinforcing a proof wall using a prestress type fixing apparatus according to an exemplary embodiment of the present invention includes a pre-stress fixing apparatus for reinforcing the front end of the proof wall 140 of a remodeling building 100 such as a multi- First, the position and thickness of the load-bearing wall 140, which requires shear reinforcement for remodeling work, are confirmed (S210).

Next, an end groove and a horizontal groove are formed in the load bearing wall 140 (S220). At this time, if there is a margin in the finishing thickness of the load-bearing wall 140 in the step S210, the strand 620 may be provided on the surface of the load-bearing wall 140, omitting the horizontal-

Next, a C-shaped fixation hole 610 is fitted and buried in the end grooves of the side force walls 140 so as to avoid interference of the vertical reinforcement 150 of the load bearing wall 140 (S230). At this time, the C-shaped fixing member 610 is embedded in the bearing wall 140 as a bar-shaped rod having a specific shape corresponding to the thickness, shape and specification of the bearing wall 140 so as to avoid the restriction on the use of the remodeling plane Shaped fixing member 610 may be installed at an intersection of the T-shaped bearing wall 140b or an intersection of the L-shaped bearing wall 140c. Further, the stranded wire 620 is embedded in the horizontal groove after forming the groove in the horizontal direction of the load bearing wall 140, and the horizontal groove is formed by performing the front end reinforcement of the load bearing wall 140, .

Next, a stranded wire 620 passing through the stranded wire inserting portion 612 of the C-shaped fixing member 610 is buried in the horizontal grooves of the load bearing wall 140 (S240).

Next, a prestress is introduced into the strand 620 using a tension force introducing device (not shown) (S250).

Next, the wedge 630 is inserted into the wedge fixing portion 611 formed in the 棺 -type fixing hole 610 to reinforce the supporting wall 140 (S260).

As a result, according to the embodiment of the present invention, when the shear performance of the resisting wall against the earthquake load is insufficient in the remodeling work of the apartment house such as the wall-structure apartment, the reinforcement method by the arrangement of the strand laying and the pre- , But it has a specific shape applicable to a straight wall, a T wall, and an L wall in accordance with the thickness, shape, and specification of the wall, thereby avoiding restrictions on the use of the remodeling plane.

In addition, it is possible to easily secure the settlement proof strength at the ends of the proof wall, which is a limit of the conventional proof wall grooving and reinforcing bar burial method. In addition, since the prestressing fixing device is installed to surround the vertical wall reinforcing bar while maintaining the minimum dimension of the wedge fixing portion, the interference of the conventional wall vertical reinforcing bar can be avoided.

Meanwhile, the pre-stress fixing apparatus for reinforcing the front wall of the present invention and the front wall reinforcement method using the same according to the present invention can be applied to the remodeling work of the existing wall for which the shear reinforcement is required, , And can also be applied to an extension type remodeling construction of a general structure type.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: remodeling building 200: ground
500: first prestress device 600: second prestress device
110: File 120: Basic edition
130: slab 140:
140b: T-shaped bearing wall 140c: L-shaped bearing wall
150: vertical wall vertical bar
510: Straight fixture 520: Strand (tension)
530: Wedge
511: Wedge fixing part 512: Stranded wire inserting part
610: C-shaped fixture 620: Strand (tension)
630: Wedge 611: Wedge fixing portion
612: Strand insertion portion 613: C-shaped groove

Claims (18)

delete delete delete delete A pre-stress fixing apparatus for reinforcing a front end wall (140) of a remodeling building (100) such as a house with a wall structure,
A U-shaped fixing member 610 having a wedge fixing portion 611, a stranded wire inserting portion 612 and a C-shaped groove 613 and being embedded in end grooves of the side supporting walls 140;
A strand 620 disposed to penetrate the stranded wire inserting portion 612 of the C-shaped fixing member 610 and into which a prestress is introduced; And
And a wedge (630) inserted into the wedge fixing part (611) formed on the C-shaped fixing part (610) to fix the strand (620) in a state where a prestress is introduced into the stranded wire (620)
Shaped fixture 610 is a rod-shaped rod having a specific shape corresponding to the thickness, shape, and specification of the load bearing wall 140 so as to prevent the restriction on the remodeling plane from being generated,
Shaped fixing member 610 is fitted in the end grooves of the load bearing wall 140 so as to avoid the interference of the vertical reinforcing bars 150 embedded in the load bearing wall 140, Shaped fixing member 611 so as to keep only the minimum dimension of the wedge fixing unit 611 while avoiding the interference of the wedge fixing unit 611 and the wedge fixing unit 611, Wherein the shearing force is applied to the shear reinforcement. 6. The method of claim 5,
In the case of a prestress reinforcing method using another mechanical fastening port without using the wedge 630, the wedge 630 is omitted and another mechanical fixing method is used. delete 6. The method of claim 5,
Shaped fixing member 610 is installed at an intersection of the T-shaped bearing wall 140b or an intersection of the L-shaped bearing wall 140c. 6. The method of claim 5,
Wherein the stranded wire (620) is installed on a surface of the load-bearing wall (140). 6. The method of claim 5,
The stranded wire 620 is embedded in the horizontal groove after forming the groove in the horizontal direction of the load bearing wall 140. The horizontal groove is subjected to the front end reinforcement of the load bearing wall 140, A pre-stress fixing device for reinforcing the front end of a front wall. delete delete delete A reinforcing wall shear reinforcement method using a prestress fixing apparatus for reinforcement of a front end bearing wall (140) of a remodeling building (100) such as a house with a wall structure,
a) confirming the position and thickness of the load-bearing wall 140 that requires shear reinforcement for remodeling work;
b) forming an end groove and a horizontal groove in the load bearing wall (140);
c) fitting the C-shaped fixing member 610 into the end grooves of the side load bearing walls 140 so as to avoid the interference of the vertical reinforcement 150 of the load bearing wall 140;
d) embedding a stranded wire 620 through the stranded wire inserting portion 612 of the C-shaped fixing member 610 in a horizontal groove of the load bearing wall 140;
e) introducing a prestress into the strand 620 using a tensional force introducing device; And
f) inserting a wedge (630) into the wedge fixing part (611) formed in the C-shaped fixing member (610) to reinforce the supporting wall (140)
Shaped fixture 610 is embedded in the load bearing wall 140 as a bar-shaped rod having a specific shape corresponding to the thickness, shape and specification of the load bearing wall 140 so as to prevent the restriction on the remodeling plane from being used,
The C-shaped fixing member 610 of the step c) is formed in a U shape so as to keep only the minimum dimension of the wedge fixing unit 611 while avoiding interference of the vertical reinforcing bars 150 of the supporting wall 140, Wherein the wedge fixing unit is installed so as to surround the vertical wall reinforcing bar while maintaining only the minimum dimension of the wedge fixing unit. 15. The method of claim 14,
In the case where there is a margin in the finishing thickness of the inner wall 140 in the step a), the horizontally grooved forming of the inner wall 140 of the step b) is omitted and the strand 620 is installed on the surface of the inner wall 140 A method of reinforcing a shear wall using a prestressing device. 15. The method of claim 14,
Shaped fixing member 610 in the step c) is installed at an intersection of the T-shaped bearing wall 140b or an intersection of the L-shaped bearing wall 140c. 15. The method of claim 14,
And the strand 620 of the step d) is installed on the surface of the load-bearing wall 140. 15. The method of claim 14,
The strand 620 of the step d) is embedded in the horizontal groove after forming the groove in the horizontal direction of the load bearing wall 140. The horizontal groove is formed by reinforcing the front end of the load bearing wall 140, And the pre-stressed fixing device is subjected to finishing.

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