WO2014069971A1 - Pretension masonry wall reinforcement apparatus using steel wires, and masonry wall reinforcement method using same - Google Patents

Abstract

The present invention relates to a pretension masonry wall reinforcement apparatus using steel wires, which utilizes pretension by using steel wires fixed to beams and columns in order to reinforce the internal force and ductility of a masonry wall, and a masonry wall reinforcement method using same. The pretension masonry wall reinforcement apparatus using steel wires according to the present invention is for reinforcing a masonry wall, which is erected between columns and beams, and comprises: angle members fixedly installed on the columns and beams; and pretension steel wire units which have both ends thereof respectively coupled to two adjacent angle members installed on the columns and beams and which comprise reinforcing steel wires installed in a manner that a predetermined tensile force is applied thereto, wherein the pretension steel wire units are installed so as to extend in a direction inclined at a predetermined angel with respect to the beams and columns.

Description

Pretensioned masonry reinforcement device for steel wire and masonry reinforcement method using the same

The present invention relates to a pretensioned masonry wall reinforcement device using a steel wire and a masonry wall reinforcement method using the same, and more specifically, to reinforce the strength and ductility of a masonry wall using a pretension using steel wires fixed to beams and columns. The present invention relates to a pretensioned masonry reinforcement device using a steel wire and a masonry reinforcement method using the same.

In general, a method of constructing a wall by using a brick or a similar block, which is not a reinforced concrete structure, forms a wall by vertically or horizontally stacking a plurality of bricks or blocks on a concrete floor surface or foundation that is basically constructed.

In the case of such a masonry wall, the contraction and expansion of the bricks or blocks are repeatedly generated at the parts to which the bricks or blocks are joined due to the change of the surrounding climate, that is, the temperature and the wind pressure of the wind, and the parts that receive the shrinkage and expansion intensively as time passes. Partial cracks or dropouts can occur and cause damage and structural problems.

In addition, such a masonry wall can be easily cracked or severely collapsed when a horizontal vibration and a vertical vibration are applied to the wall by an earthquake, and a bending moment is applied, thereby causing a risk of human accident.

Therefore, in the past, reinforcement blocks are used to reinforce the masonry walls against external forces such as earthquakes, but reinforcement blocks are technologies that can be applied only when constructing new buildings, and the construction is complicated and the air is slow. As it is impossible to reinforce, the resistance to lateral load such as earthquake is weak. In addition, reinforcement construction using rebar is almost impossible in the case of brick masonry.

Such reinforcement of the masonry wall improved the seismic performance of the masonry wall by dismantling the existing masonry wall and installing the steel bracing. However, the construction period is long by various processes and it is uneconomical after installation. There was a problem of being non-eco-friendly.

In addition, the method of attaching steel plate, carbon fiber and FRP (fiber-reinforced polymer) to the masonry wall using epoxy resin, which is one of the conventional reinforcement methods of the masonry wall, is a surface treatment process for the masonry wall to generate dust and dust. Because of this, there is a risk of environmental pollution. Moreover, the wall cannot be completely wrapped due to the obstruction of pillars and beams around the wall, so the reinforcing effect is very low. Especially, carbon fiber and FRP (fiber-reinforced polymer) are used for epoxy resin on the masonry wall. The attaching method incurs a lot of additional costs for maintenance such as peeling of carbon fiber and FRP after construction.

Recently, in order to solve this problem, a reinforcement method of a masonry wall using steel wires has been proposed, as disclosed in Korean Patent Nos. 10-1027393 and 10-0983638, but in the case of the proposed conventional masonry wall reinforcement method In order to introduce the tensile force introduced into the steel wire, but the construction is complicated, there is a problem that it is not easy to determine whether the appropriate level of tensile force is introduced into the steel wire.

The present invention has been made to solve the above problems, and provides a pre-tensioned masonry reinforcement device using a steel wire that can reinforce the masonry wall against external forces such as earthquakes by applying a pretension using a steel wire and a masonry wall reinforcement method using the same. Its purpose is to.

Another object of the present invention is to pre-tension masonry reinforcement device for use of steel wire to increase the ease and accuracy of construction by allowing the operator to easily recognize when the appropriate level of tension force is applied to tension the steel wire to apply the pre-tension and It is to provide a masonry reinforcement method using the same.

Steel wire use pretension masonry reinforcement device according to the present invention for achieving the above object is to reinforce the masonry wall installed between the column and the beam, the angle member fixed to the column and the beam, both ends adjacent to each other A pretensioned steel wire unit is fastened to two angle members installed on the beam and the pillar, and includes a reinforcing steel wire installed to apply a predetermined tensile force, wherein the pretension steel wire unit is inclined at a predetermined angle with respect to the beam and the pole. Is installed to extend in the direction.

The angle member is a 'b' shaped member extending in the longitudinal direction of the beam or pillar, the coupling portion fixed to the beam or pillar, and formed to extend along the masonry wall from the end of the coupling portion the reinforcing steel wire Is provided with a steel wire connecting portion connected to the coupling portion is formed to extend a predetermined length in the direction orthogonal to the longitudinal direction of the beam or column and to be spaced apart from each other along the longitudinal direction is inserted into the anchor bolt is inserted into the beam or pillar A plurality of anchor coupling holes are formed, and the steel wire connecting portion is preferably provided with a ring member to which the reinforcing steel wire is applied.

The reinforcing steel wire includes a first reinforcing steel wire and a second reinforcing steel wire connected to one side and the other angle member, respectively, and the pretensioned steel wire unit is elastically connected to each other to apply tensile force to the first and second reinforcing steel wires. It is preferable to have a support.

The resilient support part includes a connecting body connected to the first reinforcing steel wire, and a fastening bolt screwed to the inlet and withdrawable to the connecting body and connected to the second reinforcing steel wire, wherein the connecting body includes the first, A first connecting member extending in a direction in which the second reinforcing steel wire extends, a second connecting member extending downward from one end of the first connecting member and connected to the first reinforcing steel wire, and the first connecting member A third connecting member extending downward from the other end and having a screw hole for screwing the fastening bolt, and a fourth connecting member extending from the second connecting member toward the third connecting member and having a locking jaw formed at an end thereof; And extending from the third connecting member toward the second connecting member and being superimposed on the upper or lower portion of the fourth connecting member. And a fifth connecting member having a supporting protrusion formed to be caught by the locking jaw, wherein the fastening bolt is connected to the fourth connecting member so that a tensile force is applied to the first and second reinforcing steel wires. In the process of fastening to the member, it is preferable that an insertion groove is formed at a position where the support protrusion can be inserted when the tensile force applied to the first and second reinforcing steel wires reaches a predetermined size.

The elastic support portion and the first body is connected to the first reinforcing steel wire, the second body is connected to the first body and the screw hole is formed so that the fastening bolt connected to the second reinforcing steel wire can be screwed; And an intermediate member interconnecting the first and second bodies, wherein the first body includes: a first base member; a first locking member extending from an upper end of the first base member toward a second reinforcing steel wire; And a first stopper member extending from the lower end of the first base member toward the second reinforcing steel wire, wherein the second body includes a second base member having the screw hole formed therein, and the first base member from the upper end of the second base member. A second stopper member extending toward the first body so as to overlap with the first locking member, and extending toward the first body so as to be superimposed on the first stopper member from a lower end of the second base member; And a second locking member, wherein the first stopper member and the second stopper member are each provided with a protruding protrusion that is caught by a locking jaw or an insertion groove formed in the first locking member and the second locking member, respectively. When both ends are fastened to the first stopper member and the second stopper member, respectively, and the first and second bodies are opened to each other by a tensile force, it may be formed so that deformation can be made correspondingly.

The elastic support portion is provided between the pressing portion provided on the first and second stopper members, the support portion installed on the intermediate member, and the pressing portions and the support portions on both sides of the first and second stopper members. The first and second locking members may further include elastic members configured to elastically bias toward the second locking member.

In addition, a through anchor bolt installed to penetrate the masonry wall at the point where the reinforcing steel crosses, a steel wire coupling member fitted to the through anchor bolt and closely contacting the reinforcing steel wire toward the masonry wall, and a penetration through which the steel wire coupling member is coupled. The pre-tensioned masonry reinforcement device for steel wire use may be configured to further include a wall through reinforcement unit fastened to an anchor bolt and including a fastening nut for fixing the steel wire coupling member in a pressurized state toward the masonry wall. The coupling member is a cylindrical body having a hollow through which the through anchor bolt can pass, and a circumferential surface is formed with a coupling groove extending from the circumferential surface toward the hollow and extending along the circumferential direction so that the reinforcing steel wire can be inserted therein. It is preferable.

On the other hand, the masonry wall is provided with a window frame, the angle member is also fixed to the support portion formed in the lower portion of the window frame, the pretensioned steel wire unit is installed on the beam and the column or the support and the column adjacent both ends, respectively It is fastened to a plurality of angle members, it is installed to extend in a direction inclined by a predetermined angle with respect to the beam or support and the pillar.

The angle member is a 'b' shaped member extending in the longitudinal direction of the beam or pillar or support, the coupling portion is fixed to the beam or pillar or support portion, and is formed to extend along the waist wall from the end of the coupling portion Is provided with a steel wire connecting portion connected to the reinforcing steel wire, The coupling portion is formed to extend a predetermined length in the direction orthogonal to the longitudinal direction of the beam or pillar or support portion and to be spaced apart from each other along the longitudinal direction to be inserted into the beam or pillar or support A plurality of anchor coupling holes into which the anchor bolt is fitted is formed, and the steel wire connecting portion is preferably provided with a ring member to which the reinforcing steel wire is applied.

The masonry wall reinforcement method using the pretensioned masonry wall reinforcement device using steel wire according to the present invention is to reinforce the masonry wall formed between the beam and the pillar, the angle member coupling step of installing an angle member on the beam and the pillar, Pre-tension steel wire unit installation step of installing a pre-tensioned steel wire unit comprising a reinforcing steel wire is fixed to each of the angle members installed on the adjacent beams and pillars, respectively, and setting the tensile force to apply a pre-tension by applying a tensile force to the reinforcing steel wire Steps.

The angle member includes a coupling portion fixed to the beam or pillar, and a steel wire connecting portion extending along the masonry wall from the coupling portion, wherein the angle member coupling step is to insert an anchor bolt into the beam or pillar, After passing the anchor bolt through the anchor coupling hole formed to extend in the direction intersecting the longitudinal direction of the beam or the pillar member to the coupling portion, the fixing nut is coupled to the anchor bolt to fix the angle member to the beam or the pillar, The pretensioned steel wire unit includes first and second reinforcement steel wires connected to one side and the other angle member, respectively, and elastic support portions connecting the first and second reinforcement steel wires to each other, wherein the first and second reinforcement wires are supported. It is preferable that the second reinforcing steel wire is formed to be pulled in a direction closer to each other.

The resilient support part includes a connecting body fastened to the first reinforcing steel wire and a fastening bolt screwed to be pulled into and out of the connecting body and connected to the second reinforcing steel wire, and the setting force of the tensioning step is the fastening bolt. It is preferable to be formed to apply a tensile force to the first, second reinforcing steel wire while fastening so as to be introduced into the connecting body.

In addition, a through anchor bolt is installed to penetrate the masonry wall, and a steel wire coupling member fitted to the through anchor bolt is installed to closely contact the reinforcing steel wire crossing the front surface of the masonry wall toward the masonry wall, and the steel wire coupling member is A wall penetrating reinforcing unit installation step of fastening the fastening nut to the through anchor bolt to be in close contact with the masonry wall may be further provided.

On the other hand, the masonry wall is provided with a window frame, in the angle member coupling step, the angle member is also installed in the support portion for supporting the lower portion of the window frame, and in the pretension steel wire unit installation step, adjacent beams and columns and the support portion The pretensioned steel wire unit is installed on the angle member to be installed.

The angle member includes a coupling portion fixed to the beam or pillar or support portion, and a steel wire connection portion extending along the waist wall from the coupling portion, and the angle member coupling step includes inserting an anchor bolt into the beam or pillar or support portion. After passing the anchor bolt through the anchor coupling hole formed to extend in the direction intersecting the longitudinal direction of the beam or pillar or support member, the fixing nut is coupled to the anchor bolt to the angle member or beam or The pretension steel wire unit is fixed to the support portion, the first and second reinforcing steel wires connected to one side and the other angle member, respectively, and the elastic support for connecting the first and second reinforcing steel wires, the elastic support Preferably, the first and second reinforcing steel wires are formed to be pulled in a direction approaching each other.

Pretensioned masonry wall reinforcement device and steel masonry reinforcement method using the wire according to the present invention can easily reinforce the masonry wall of the building, in particular can be installed freely during or after construction of the building.

In addition, it is possible to easily set the tension force applied to the steel wire even without a separate equipment has the advantage of high construction convenience and accuracy.

1 is a perspective view showing a state in which a pre-tension masonry reinforcement device for steel wires used in accordance with the present invention is constructed,

FIG. 2 is a partial exploded perspective view showing the pretension masonry reinforcing device using the steel wire of FIG.

Figure 3 is a partial excerpt perspective view showing the installation state of the steel wire and the angle,

Figure 4 is a partial excerpt perspective view showing another embodiment of the angle member further provided with reinforcement stiffeners,

FIG. 5 is a cross-sectional view showing a masonry wall in which the pretension masonry wall reinforcement device of FIG. 1 is constructed;

6 is a perspective view showing a pretensioned steel wire unit of the embodiment of FIG.

7 and 8 are front views of the pretensioned steel wire unit of Figure 6,

9 is a front view showing a second embodiment of a pretensioned steel wire unit,

10 is a perspective view showing a third embodiment of the pretensioned steel wire unit,

11 is a front view showing a fourth embodiment of the pretensioned steel wire unit,

12 is a partial perspective view showing an elastic support of the pretensioned steel wire unit of FIG.

13 is an exploded perspective view showing the wall through the reinforcement unit,

FIG. 14 is a cross-sectional view of the masonry wall in which the wall penetration reinforcing unit of FIG. 13 is constructed;

15 is a perspective view showing a state in which a pre-tension masonry wall reinforcement device for steel wires according to a fifth embodiment of the present invention is constructed;

FIG. 16 is a partial exploded perspective view showing the pretension masonry reinforcing device using the steel wire of FIG. 15;

FIG. 17 is a cross-sectional view illustrating a masonry wall in which the pretension masonry wall reinforcement device of FIG. 15 is constructed.

Hereinafter, a steel wire use pretension masonry reinforcement apparatus and a masonry reinforcement method using the same will be described in detail with reference to the accompanying drawings.

1 to 8 show a first embodiment of a steel wire use pretensioned masonry reinforcement device 10 according to the present invention.

Referring to the drawings, the steel wire use pretension masonry reinforcement device 10 is installed in front and rear of the masonry wall (3) installed between the column (1) and the beam (2), respectively, beam (2) or column An angle member 100 fixed to (1) and a pretension steel wire unit 200 for applying pretension by connecting the angle members 100 to each other.

Angle member 100 is coupled to the anchor bolt 130 is installed on the beam (2) or pillar (1), the coupling portion 110 is in contact with the beam (2) or pillar (1) and the coupling portion ( It is formed to have a steel wire connecting portion 120 extending along the front surface of the masonry wall (3), it is to have a 'b' shape as a whole. The coupling part 110 is formed to have a length corresponding to the length of the beam 2 or the pillar 1, and a plurality of anchor coupling holes 111 are formed to be spaced apart from each other by a predetermined distance along the longitudinal direction. The anchor coupling hole 111 is formed in the form of a long hole along the direction crossing with respect to the longitudinal direction of the coupling portion (110).

The anchor coupling hole 111 is formed to have a long hole shape for coupling the rear surface of the steel wire connecting portion 120 of the angle member 100 to be in close contact with the front surface of the masonry wall (3).

The angle member 100 is first installed after the anchor bolt 130 is inserted into the column (1) or beam (2), the coupling portion 110 so that the anchor bolt 130 is fitted through the anchor coupling hole 111. ) And fasten the fixing nut 140 to the anchor bolt 130 passing through the coupling part 110 to fix the coupling part 110 to the beam 2 or the pillar 1. At this time, after the anchor bolt 130 is fitted, and before fixing the fixing nut 140, the wire connecting portion 120 is moved to be in close contact with the masonry wall (3) as much as possible, and then the fixing nut 140 is fastened to the angle member Install 100.

The wire connection portion 120 extends along the front surface of the masonry wall 3 from the coupling portion 110, the end of the wire connection portion 120 is provided with a ring member 121 for connecting the reinforcing steel wire to be described later.

In the present embodiment, the ring member 121 is formed by bending the plate-shaped member integral with the steel wire connecting portion 120 to an alphabet 'U' shape, and the ring member 121 is the steel wire connecting portion 120. Although shown as being integrated with), alternatively, a separate ring capable of fixing the reinforcing steel wire may be coupled to the steel wire connection part 120 through various coupling means such as welding, bolting, or riveting.

As shown in FIG. 1, the angle member 100 is installed on both beams 2 and upper and lower pillars 1 and 2 on both sides of the masonry wall 3.

In addition, as shown in FIG. 4, the angle member 100 further includes a reinforcement stiffness 122 having one side supported by the coupling part 110 and the other side supported by the steel wire connection part 120. You can also strengthen it.

The pretensioned steel wire unit 200 is provided at both ends of the angle to apply an appropriate tensile force to reinforce the strength of the masonry wall 3 against external forces such as earthquakes.

As shown in FIG. 1, the pretensioned steel wire unit 200 extends along a direction inclined with respect to the beam 2 or the pillar 1 by connecting one side and the other end to two adjacent angle members 100, respectively. The first and second reinforcing steel wires 210 and 220 connected to the angle member 100 and the first and second reinforcing steel wires 210 and 220 are connected to each other. It includes a resilient support 230 for tensioning).

The first reinforcing steel wires 210 and the second reinforcing steel wires 220 are formed in a ring shape, respectively, so that they can be caught by the ring member 121.

The resilient support 230 is connected to the connecting body 231, one side of which is connected to the first reinforcing steel wire 210, the other side of the connecting body 231 to be screwed out and the second reinforcing steel wire 220 It includes a fastening bolt 239 is connected to.

The connecting body 231 includes first to fifth connecting members 232 to 236. The first connecting member 232 extends a predetermined length along a direction connecting the two angle members 100. The connecting member 233 extends downwardly from one end of the first connecting member 232 facing the first reinforcing steel wire 210, and the third connecting member 234 is formed in parallel with the second connecting member 233. 1 extends downwardly from the other end of the connecting member 232. The second connecting member 233 is connected to the first reinforcing steel wire 210, and the third connecting member 234 has a screw hole 249 is formed so that the fastening bolt 239 can be screwed. . The second connecting member 233 is formed longer than the third connecting member 234.

The fourth connecting member 235 extends from the end of the second connecting member 233 toward the third connecting member 234, and the fifth connecting member 236 is second from the lower end of the third connecting member 234. The predetermined length is extended toward the connecting member 233.

As described above, the fourth connecting member 235 and the fifth connecting member 236 have the fourth connecting member 236 because of the difference in length between the second connecting member 233 and the third connecting member 234. The latching jaw 235a is overlapped to be positioned above the upper portion 235, and protrudes toward the fifth connecting member 236 at an end portion of the fourth connecting member 235. In addition, a support protrusion 237 protruding from the locking jaw 235a protrudes toward the fourth connecting member 235 at an end of the fifth connecting member 236.

The fastening bolt 239 is a head portion is connected to the second reinforcing steel wire 220, the tensile force is applied to the first, second reinforcing steel wire (210, 220) as the insertion length is inserted into the third connecting member 234 is longer. Will increase in size.

In addition, the inner surface of the fourth connecting member 235 has three insertion grooves 238 into which the support protrusions 237 can be inserted, and are formed to be spaced apart from each other along the longitudinal direction. When the tensile force is applied to the first and second reinforcing steel wires (210, 220), is formed in a position that can measure the magnitude of the tensile force. In more detail, for example, the first reinforcing steel wire 210 and the first reinforcing steel wires (210, 220) and the first through the fastening bolt 239 to be described later in the state of setting the size of three to be applied to the reinforcing wires (210,220) When the tensile force is increased in the second reinforcing steel wire 220, when the support protrusion 237 is inserted into the first insertion groove 238, the set tensile force is the first reinforcing steel wire 210 and the second reinforcing steel wire 220. Workers can recognize that they have been caught. Similarly, the operator may apply the first reinforcing steel wire 210 and the second reinforcing steel wire 220 to three tensile forces set by applying a tensile force such that the support protrusion 237 is inserted into the second and third insertion grooves 238. It can apply tension. Thus, the elastic support unit 230 of the present invention can easily identify whether the operator takes the tensile force of the size set in the first reinforcing steel wire 210 and the second reinforcing steel wire 220 without having a separate measuring device This is easy and the construction accuracy can be improved.

Although the elastic support part 230 of the present embodiment is illustrated as having three insertion grooves 238 formed in the fourth connecting member 235, only one insertion groove 238 may be formed as shown in FIG. 9. In this case, the tensile force applied to the first and second reinforcing steel wires 210 and 220 is limited to only one size.

10 shows a third embodiment of the resilient support 240.

The elastic support part 240 of the present embodiment includes first and second bodies 241 and 245 respectively connected to the first reinforcing steel wire 210 and the second reinforcing steel wire 220.

The first body 241 and the second body 245 are first and second base members 242 and 246, respectively, and first and second stopper members extending from both ends of the first and second base members 242 and 246, respectively. And 244 and 248 and first and second locking members 243 and 247. The first and second stopper members 244 and 248 and the first and second locking members 243 and 247 extend in parallel with each other. The first body 241 and the second body 245 are 'U' shaped members each side of which is open.

The first body 241 has a first locking member 243 at the upper end of the first base member 242 and a first stopper member 244 at the lower end thereof extending toward the second body 245, respectively. The second body 245 is installed so that the second stopper member 248 at the upper end of the second base member 246 and the second locking member 247 at the lower end thereof extend toward the first body 241, respectively. The second stopper member 248 is connected to the lower portion of the first locking member 243 and the first stopper member 244 is stacked on the upper portion of the second locking member 247. One end and the other end are connected to each other through an intermediate member 253 connecting the first locking member 243 and the second locking member 247, respectively. The intermediate member 253 has the first and second stopper members having protrusions 251 formed on the first and second locking members 243 and 247, respectively, when tension is applied to the first and second reinforcing steel wires 210 and 220. The first and second bodies 241 and 245 may be formed in a curved shape so that the first and second bodies 241 and 245 may be stretched in a direction away from each other so as to be inserted into the insertion grooves 252 respectively formed in the 244 and 248. Of course, unlike the present embodiment, the intermediate member 253 may be formed to connect the first stopper member 244 and the second stopper member 248.

A first reinforcing steel wire 210 is connected to the first body 241, and a screw hole in which the fastening bolt 239 is screwed is formed in the second base member 246 of the second body 245 to form a first hole. As shown in the embodiment, the size of the tensile force applied to the first and second reinforcing steel wires 210 and 220 may be adjusted through an insertion length into which the fastening bolt 239 is inserted, and the protrusion protrusion 251 is inserted into the insertion groove 252. Whether or not the tensile force set on the first and second reinforcing steel wires 210 and 220 may be applied.

11 and 12 illustrate a fourth embodiment of the resilient support 240.

The present embodiment is further provided with an elastic member 250 in the elastic support 240 of the third embodiment, the same reference numerals are assigned to the same members as the third embodiment, and detailed description thereof will be omitted.

Both ends of the elastic member 250 are supported by the first and second stopper members 244 and 248 of the first body 241 and the second body 245, respectively. It is elastically supported to press toward the second locking members 243 and 247.

The elastic member 250 may include two pressing parts 254 contacting the first and second stopper members 244 and 248, and a support part installed on the intermediate member 253 to be positioned between the pressing parts 254. 255 and a spring 256 provided between the support portion 255 and both pressing portions 254 to elastically bias the pressing portion 254 to the outside. The elastic members 250 press the first and second stopper members 244 and 248 toward the second locking member 247 and the first locking member 243, respectively, to thereby tighten the fastening force of the first and second bodies 241 and 245. It can be raised further.

13 and 14, the wall through reinforcement unit 300 is shown.

The wall through reinforcement unit 300 is installed to penetrate the masonry wall (3) to close the first and second reinforcing steel wires (210, 220) to the masonry wall (3) side.

The wall through reinforcement unit 300 may be formed in plural at some points of the masonry wall 3, and the through anchor bolt 310 penetrating the masonry wall 3 and the steel wire coupling fitted to the through anchor bolt 310. And a fastening nut 330 screwed to the member 320 and the through anchor bolt 310.

In the construction process of the masonry wall 3, the through anchor bolt 310 is inserted and installed by drilling a through hole in a cement construction position for coupling bricks to each other, and the installation position where the through anchor bolt 310 is installed is the reinforcing steel wire. To be located at the intersection where they cross each other.

After inserting the through anchor bolt 310, the steel wire coupling member 320 is inserted into the through anchor bolt 310 protruding from the masonry wall (3), the fastening nut 330 is inserted into the through anchor bolt 310 It is fixed to the masonry wall (3), the steel wire coupling member 320 is fixed between the fastening nut 330 and the masonry wall (3).

The steel wire coupling member 320 is a cylindrical body having a hollow 321 through which the through anchor bolt 310 passes, and a coupling groove 322 inserted into the hollow 321 on the outer circumferential direction thereof in the circumferential direction. It is formed to extend along. One side is provided with a close plate 323 to be in close contact with the masonry wall (3), the other side is provided with a spacer plate 324 spaced apart from the close contact plate 323 to form the coupling groove 322, the separation An edge 325 protruding toward the contact plate 323 is formed at the edge of the plate to block the departure of the reinforcing steel wires entering the coupling groove 322.

The coupling groove 322 is formed so that the reinforcing steel wire to be intersected, the reinforcing steel wires fastened between the angle member 100 is spaced apart from the masonry wall 3 by a predetermined distance from the coupling groove 322. The steel wire coupling member 320 is installed in close contact with the masonry wall 3 by the fastening nut 330 in the inserted state, and thus the reinforcing steel wires are also closely adhered to the masonry wall 3. Therefore, the tensile force of the reinforcing steel is increased, and the reinforcing steel wires are connected to the masonry wall 3, so that the reinforcement of the masonry wall 3 by the pretension masonry wall reinforcing device 10 using the whole steel wire is made more robust.

Hereinafter, the construction procedure of the steel wire use pretensioned masonry reinforcement device 10 will be described while explaining the steel wall use pretensioning masonry reinforcement device 10.

The first step is to couple the angle member 100 to each beam 2 and the pillar (1) member (angle member 100 coupling step).

In this step, the anchor bolt 130 is first inserted into the beam 2 and the pillar 1 at intervals corresponding to the anchor coupling holes 111 of the angle member 100, and the anchor bolt 130 is installed. The angle member 100 is fastened to the beam 2 and the pillar 1 so as to pass through the anchor coupling hole 111. At this time, the coupling part 110 is attached to the steel wire connecting part 120 to be in close contact with the masonry wall (3) in a state in close contact with the beam (2) or the column (1), fastening the fixing nut 140 to the anchor bolt 130 To fix the angle member 100 to the beam 2 and the pillar 1.

The second step is to install the pretension liner unit 200 (pretension liner unit 200 installation step).

In this step, each of the first reinforcing steel wire 210 and the second reinforcing steel wire 220 is installed so as to be fitted to the ring member 121 of the angle member 100 adjacent to each other, the pretension steel wire unit 200 is installed, The pretensioned steel wire unit 200 is extended in a state inclined with respect to the beam (2) and the column (1).

After the pretension steel wire unit 200 is installed in this way, a tensile force is applied to the first and second reinforcing steel wires 210 and 220 (tension setting step).

The tension is applied to the first and second reinforcing steel wires 210 and 220 by using the elastic support 230 included in the pretension steel wire unit 200, and the second reinforcing steel wire 220 and the connecting body 231. The tension is applied to the first reinforcing steel wire 210 and the second reinforcing steel wire 220 by adjusting the insertion length of the fastening bolt 239 to be connected. In particular, when the fastening bolt 239 is fastened in the direction of insertion into the connecting body 231 until the support protrusion 237 formed in the connecting body 231 is inserted into the insertion groove 238, an appropriate level of tension is obtained. Since the first reinforcing steel wire 210 and the second reinforcing steel wire 220 is caught, the operator can easily apply accurate tensile force.

Next, install the wall through reinforcement unit 300 (wall through reinforcement unit 300 installation step).

First, a perforation hole is drilled in the masonry wall 3 to correspond to the intersection position where the reinforcing steel wires intersect, the through anchor bolt 310 passes through the masonry wall 3, and then the steel wire coupling member 320 passes through the anchor anchor bolt 310. Insert into and fasten with a fastening nut (330). At this time, the reinforcing steel wires are introduced into the coupling groove 322 formed on the outer circumferential surface of the steel wire coupling member 320 so that the reinforcing steel wires are in close contact with the masonry wall 3 by the steel wire coupling member 320. The reinforcement by the unit 200 makes it more robust.

The steel wire use pretensioned masonry reinforcement apparatus 10 and the masonry reinforcement method using the same according to the present invention described above can be applied to both the renovation of existing buildings or newly constructed buildings, and the tensile force of an appropriate level can be quickly obtained. It can be set up so that quick and accurate construction is possible.

On the other hand, Figure 15 to 17 is a steel wire use pre-tension masonry reinforcement device 20 according to another embodiment of the present invention is shown.

Referring to the drawings, the pretension masonry wall reinforcement device 20 is provided on the masonry wall 13 is provided as a window frame 5 is provided as a waist wall to reinforce the masonry wall (13). The waist wall refers to a part of the building wall with a different finish from the bottom to a height that a human body can reach. Typically, a window frame is installed on the upper part of the waist wall, and a window is installed on the window frame.

The pretension masonry wall reinforcing device 20 is installed in front and rear of the masonry wall 13 installed between the column 1 and the beam 2, respectively, the beam (2) or the column (1) or the window frame ( 5) an angle member 500 fixed to the lower support 4, and a pretension steel wire unit 600 for applying pretension by connecting the angle members 500 to each other.

Angle member 500 is fastened to the anchor bolt 130 is installed on the beam (2) or pillar (1) or the support (4) coupled to contact the beam (2) or pillar (1) or support (4) And a portion 110 and a steel wire connecting portion 120 extending along the front surface of the masonry wall 13 from the coupling portion 110, and the angle members 100 shown in FIG. Since the configuration is the same, detailed description is omitted.

As shown in FIG. 15, the pretensioned steel wire unit 600 extends along a direction inclined with respect to the beam 2 or the pillar 1 by connecting one side and the other end to two adjacent angle members 500, respectively. This is done. Since the pretension wire unit 600 has the same configuration as the pretension wire unit shown in the first to fourth embodiments mentioned above, a detailed description thereof will be omitted.

Hereinafter, the construction procedure of the steel wire use pretensioned masonry reinforcement device 20 will be described while explaining the steel wall use pretensioning masonry reinforcing device 20 using the steel wire pretensioning masonry reinforcing device 20.

The first step is to couple the angle member 500 to each beam 2, the pillar 1 and the support 4 (angle member 500 coupling step).

In this step, the anchor bolt 130 is first inserted into the beam 2 and the pillar 1 and the support part 4 so as to be spaced apart from each other at intervals corresponding to the anchor coupling holes 111 of the angle member 500. The angle member 500 is fastened to the beam 2 and the pillar 1 so that the bolt 130 passes through the anchor coupling hole 111. At this time, the coupling part 110 is attached to the steel wire connecting part 120 to be in close contact with the masonry wall 13 in a state in close contact with the beam (2) or the pillar (1), fastening the fixing nut 140 to the anchor bolt 130 To fix the angle member 500 to the beams 2 and the pillars 1.

The second step is to install the pretension liner unit 600 (pretension liner unit 600 installation step).

In this step, each of the first reinforcing steel wire 210 and the second reinforcing steel wire 220 is installed to be fitted to the ring member 121 of the angle member 500 adjacent to each other to install the pretension steel wire unit 600, the The pretensioned steel wire unit 600 is extended in a state inclined with respect to the beam (2) and the column (1) and the support (4).

After the pretension steel wire unit 600 is installed in this way, a tensile force is applied to the first and second reinforcing steel wires 210 and 220 (tension setting step).

The tensile force is applied to the first and second reinforcing steel wires 210 and 220 by using the elastic support 230 included in the pretension steel wire unit 600, and the second reinforcing steel wire 220 is connected to the connecting body 231. The tension is applied to the first reinforcing steel wire 210 and the second reinforcing steel wire 220 by adjusting the insertion length of the fastening bolt 239 to be connected. In particular, when the fastening bolt 239 is fastened in the direction of insertion into the connecting body 231 until the support protrusion 237 formed in the connecting body 231 is inserted into the insertion groove 238, an appropriate level of tension is obtained. Since the first reinforcing steel wire 210 and the second reinforcing steel wire 220 is caught, the operator can easily apply accurate tensile force.

Next, install the wall through reinforcement unit 300 (wall through reinforcement unit 300 installation step).

First, drill a hole in the masonry wall 13 to correspond to the intersection position where the reinforcing steel wires cross, penetrate the through anchor bolt 310 through the masonry wall 13, and then pass through the steel wire coupling member 320 through the anchor bolt 310. Insert into and fasten with a fastening nut (330). At this time, the reinforcing steel wires are introduced into the coupling groove 322 formed on the outer circumferential surface of the steel wire coupling member 320 so that the reinforcing steel wires are in close contact with the masonry wall 13 by the steel wire coupling member 320. The reinforcement by the unit 600 makes it more robust.

The steel wire use pretensioned masonry reinforcement apparatus 20 and the masonry reinforcement method using the same according to the present invention described above can be applied to both the renovation of existing buildings or newly built buildings, and the tensile force of an appropriate level can be quickly obtained. It can be set up so that quick and accurate construction is possible.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (17)

As to reinforce the masonry wall installed between the column and the beam, An angle member fixed to the pillars and beams; And a pretension steel wire unit having both ends fastened to a plurality of angle members installed on adjacent beams and pillars, the reinforcing steel wire being installed to apply a predetermined tensile force. The pretensioned steel wire reinforcement unit for the pre-tensioned masonry wall for steel wires, characterized in that is installed to extend in a direction inclined by a predetermined angle with respect to the beam and the pillar. The method of claim 1, The angle member is a 'b' shaped member extending along the longitudinal direction of the beam or column, A coupling part fixed to the beam or pillar, and a wire connection part formed to extend along an masonry wall from an end of the coupling part and connected to the reinforcing steel wire, The coupling portion is formed to extend a predetermined length in the direction orthogonal to the longitudinal direction of the beam or column and are formed to be spaced apart from each other along the longitudinal direction is formed a plurality of anchor coupling holes to be inserted into the anchor bolt inserted into the beam or column And The steel wire connecting portion pre-tension masonry reinforcement device for steel wires, characterized in that the reinforcing steel wire is provided with a ring member is applied. The method of claim 2, The reinforcing steel wire includes a first reinforcing steel wire and a second reinforcing steel wire respectively connected to one side and the other angle member, The pretension steel wire unit pre-strengthened masonry reinforcing device for steel wires, characterized in that it comprises an elastic support for interconnecting the first, second reinforcing steel wires to apply a tensile force. The method of claim 3, wherein The resilient support includes a connecting body connected to the first reinforcing steel wire and a fastening bolt screwed to the inlet and withdrawable to the connecting body and connected to the second reinforcing steel wire, The connecting body includes a first connecting member extending along a direction in which the first and second reinforcing steel wires extend, and a second connecting member extending downward from one end of the first connecting member and connected to the first reinforcing steel wire. And a third connecting member extending downward from the other end of the first connecting member and having a screw hole for screwing the fastening bolt, and extending from the second connecting member toward the third connecting member and engaging at an end thereof. The fourth connecting member and the supporting protrusion extending from the third connecting member toward the second connecting member and being superimposed on the upper or lower portion of the fourth connecting member and formed to be caught by the locking jaw A pretension masonry wall reinforcement device for steel wires, comprising a fifth connecting member provided. The method of claim 4, wherein In the process of fastening the fastening bolts to the third connecting member to the fourth connecting member so that the tensioning force is applied to the first and second reinforcing steel wires, the tensile force applied to the first and second reinforcing steel wires reaches a predetermined size. Steel wire use pre-tension masonry reinforcing device, characterized in that the insertion groove is formed in a position where the support projection can be inserted. The method of claim 3, wherein The elastic support portion and the first body is connected to the first reinforcing steel wire, the second body is connected to the first body and the screw hole is formed so that the fastening bolt connected to the second reinforcing steel wire can be screwed; Including an intermediate member interconnecting the first and second bodies, The first body includes a first base member, a first catching member extending from an upper end of the first base member toward the second reinforcing steel wire, and a first extending extending from the lower end of the first base member toward the second reinforcing steel wire. Including a stopper member, The second body includes a second base member having the screw hole formed therein, a second stopper member extending toward the first body so as to overlap the first locking member from an upper end of the second base member, and the second base. A second locking member extending toward the first body so as to be superimposed on the first stopper member from a lower end of the member, Each of the first stopper member and the second stopper member is provided with a protruding protrusion that is caught by a locking jaw or an insertion groove formed in the first locking member and the second locking member, respectively. The intermediate member is formed so that both ends are fastened to the first stopper member and the second stopper member, respectively, and when the first and second bodies are opened to each other by a tensile force, deformation can be made correspondingly. Pre-tensioned masonry reinforcement device. The method of claim 6, The elastic support portion is provided between the pressing portion provided on the first and second stopper members, the support portion installed on the intermediate member, and the pressing portions and the support portions on both sides of the first and second stopper members. 1, Pre-strengthening masonry reinforcement device for steel wires, characterized in that it further comprises an elastic member to elastically bias toward the second locking member. The method of claim 3, wherein A through anchor bolt installed to penetrate the masonry wall at the point where the reinforcing steel wires intersect; A steel wire coupling member fitted to the through anchor bolt and closely contacting the reinforcing steel wire toward the masonry wall; The pre-tensioned masonry wall for steel wire use further comprises a wall penetration reinforcing unit including a fastening nut fastened to the through anchor bolt to which the steel wire coupling member is coupled to fix the steel wire coupling member in a pressurized state toward the masonry wall. Reinforcement. The method of claim 8, The steel wire coupling member is a cylindrical body having a hollow through which the through anchor bolt can pass, and a coupling groove extending from the circumferential surface toward the hollow and extending along the circumferential direction so that the reinforcing steel wire can be inserted into the circumferential surface thereof. Steel wire use pre-tensioned masonry reinforcement, characterized in that formed. The method of claim 1, The masonry wall is provided with a window frame, The angle member is also fixed to the support formed on the lower part of the window frame, The pretensioned steel wire unit is coupled to the plurality of angle members provided at both ends of the beam and the pillar or the support and the adjacent poles, respectively, and is installed to extend in a direction inclined at a predetermined angle with respect to the beam or the support and the pillar. Pretensioned masonry reinforcement device for steel wire use. The method of claim 10, The angle member is a 'b' shaped member extending along the longitudinal direction of the beam or pillar or support, A coupling part fixed to the beam or pillar or support part and a wire connection part formed to extend along a waist wall from an end of the coupling part and connected to the reinforcing steel wire, The coupling portion has a plurality of anchor coupling holes that extend a predetermined length in a direction orthogonal to the longitudinal direction of the beam or pillar or the support portion and are spaced apart from each other along the length of the anchor or inserted into the beam or pillar or the support portion. Formed, Pre-strength waist wall reinforcement device for use of steel wire, characterized in that the steel wire connecting portion is provided with a ring member that the reinforcing steel wire is caught. For reinforcing masonry walls formed between beams and columns, An angle member coupling step of installing an angle member on the beam and the pillar; A pretension steel wire unit installation step of installing a pretension steel wire unit including reinforcing steel wires each of which is fixed at both ends to angle members respectively installed on adjacent beams and columns; And a tensile force setting step of applying pretension by applying tensile force to the reinforcing steel wires. The method of claim 12, The angle member includes a coupling portion fixed to the beam or pillar, and a steel wire connecting portion extending along the masonry wall from the coupling portion, The angle member coupling step is to insert the anchor bolt to the beam or pillar, and after passing the anchor bolt through the anchor coupling hole formed to extend in the direction crossing the longitudinal direction of the beam or pillar member to the coupling portion. Fixing the angle member to the beam or column by coupling the fixing nut to the anchor bolt, The pretensioned steel wire unit includes first and second reinforcement steel wires connected to one side and the other angle member, respectively, and an elastic support portion interconnecting the first and second reinforcement steel wires, The resilient support portion masonry wall reinforcement method using a pre-tensioned masonry wall reinforcement device using a steel wire, characterized in that the first and second reinforcing steel wire is formed to be pulled in a direction closer to each other. The method of claim 13, The resilient support includes a connecting body coupled to the first reinforcing steel wire, a fastening bolt screwed to be pulled out and pulled into the connecting body and connected to the second reinforcing steel wire, Wherein the tension setting step is to tighten the fastening bolt to the connecting body while the first and second reinforcing masonry wall reinforcement using a pre-tensioned masonry reinforcement device, characterized in that to apply a tensile force to the first and second reinforcing steel wire. The method of claim 12, A through anchor bolt is installed to penetrate the masonry wall, and a steel wire coupling member is fitted to the through anchor bolt to closely adhere a reinforcing steel wire crossing the front surface of the masonry wall toward the masonry wall, and the steel wire coupling member is connected to the masonry wall. And a wall penetrating reinforcing unit installation step of fastening the fastening nut to the through-anchor bolt to be in close contact with the wall. The method of claim 12, The masonry wall is provided with a window frame, In the angle member coupling step, the angle member is also installed in the support portion for supporting the lower part of the window frame, In the pretension steel wire unit installation step, the pretension steel wall using the pre-tension masonry reinforcement device, characterized in that to install the pre-tension steel unit in the angle member installed in the adjacent beams and columns and the support. The method of claim 16, The angle member includes a coupling portion fixed to the beam or pillar or support portion, and a steel wire connection portion extending along the waist wall from the coupling portion, The angle member coupling step is to insert the anchor bolt to the beam or pillar or support portion, passing through the anchor bolt through the anchor coupling hole formed to extend in the direction crossing the longitudinal direction of the beam or pillar or support member. After fixing the fixing nut to the anchor bolt to fix the angle member to the beam or column or support, The pretensioned steel wire unit includes first and second reinforcement steel wires connected to one side and the other angle member, respectively, and an elastic support portion interconnecting the first and second reinforcement steel wires, The resilient support portion masonry wall reinforcement method using a pre-tensioned masonry wall reinforcement device using a steel wire, characterized in that the first and second reinforcing steel wire is formed to be pulled in a direction closer to each other.

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