JP3051812B2 - Renovation structure of existing wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair structure for an existing wall, and more particularly, to a method for repairing a cement-based existing wall such as a concrete wall or a mortar wall in which a reinforcing bar is embedded. The construction for renovation is simplified and the workability is improved.Especially, it is possible to prevent the gap from being formed between the wall and the existing wall where unevenness occurs, and to prevent rainwater and insects from entering through the gap. The present invention relates to a technology that attempts to prevent the above.

[0002]

2. Description of the Related Art In recent years, a renovation wall material 4a having, for example, a metal outer skin is constructed on an existing cement-based wall 1 to repair the wall surface, as shown in FIG. Wall 1
An L-shaped angle member a called a "cat" is fixed to a wall surface with bolts, and the angle member a is provided with a C-shaped steel repairing rim A.
a, and the drainage 6a is attached to the repairing rim Aa, whereby the lower part of the repairing wall member 4a whose lower end is supported by the repairing rim Aa is closed.

In such a modified construction, an angle member a for fixing the repairing rim Aa is separately required. To fix the angle member a, a fixing bolt is provided inside the existing wall 1. In the case of hitting the rebar, the position of the angle material a must be shifted, the workability is greatly reduced, and the repairing rim Aa supported by the angle material a is moved in and out according to the unevenness of the existing wall 1. To fix the angle material a by absorbing the unevenness of the existing wall 1 and making the outer surface of the repairing rim Aa flush with the mounting surface of the other rim. It requires fixing to the repair rim Aa, and furthermore, the fixing direction is different, so that the workability is deteriorated, and by using the angle material a, the existing wall 1 and the repair rim Aa can be fixed. Unnecessary gap D is required between The outer surface position of use the wall member 4a is that unnecessarily protrude to the outside. Further, a substantially L-shaped drain 6
In a, a cover c is indispensable on the bottom surface side, a space S for construction is required between the cover c and the ground on which the cover c is attached, and the cover c is attached to the existing wall 1 in advance. It is necessary to fix the metal fitting e, and this metal fitting e
Work to fix it to the existing wall 1 and cover
Work to fix c is required, and also in this respect, there is a problem that workability is reduced.

As another conventional example, as shown in Japanese Patent Publication No. 5-43823 shown in FIG. 9, a substantially crank-shaped base drainer 6d is brought into contact with the existing wall 1 and fixed, and the base drainer 6d is mounted. The lower end of the vertically long repair rim Ab is placed on the mounting piece 6b and fixed to the existing wall 1, and the repair wall material 4a is fixed to such a repair rim Ab to repair the existing wall. There are configurations that do this.

[0005] However, in such a configuration, the base drainer 6d is configured to be directly abutted on the mortar-finished cement-based existing wall 1 to be mounted thereon. As a result, there is a problem that a gap d is generated between the base and the drainer 6d, rainwater infiltrates into this location from the direction of arrow A, and insects enter the room.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and an object of the present invention is to mainly provide a construction for repairing an existing cement-based wall. Simplify and improve workability, especially
An object of the present invention is to provide a repair structure for an existing wall that can prevent a gap from being formed between the existing wall and the uneven wall, and can prevent rainwater and insects from entering through the gap.

[0007]

According to the first aspect of the present invention, the body 2 is formed to have a substantially U-shape in vertical section, and the entire length in the horizontal direction is provided at the upper and lower intermediate portions of the mounting surface 3 on the front side of the body 2. The fixing groove 5 is formed over the fixing groove 5, and below the fixing groove 5,
A mounting receiving surface 7 is formed to face and attach a drain drain 6 for preventing the infiltration of rainwater from the lower end surface of the renovation wall material 4 into the indoor side, and a remodeling rim A is formed. The drainage 6 is fixed to the sewage drain 6, a mounting portion 13 for mounting and supporting the mounting piece 12 and the lower end portion of the repair wall material 4, a lower surface covering portion 15 for preventing wind and rain from blowing from the ground side, and a rear surface covering portion 16. Are formed at the upper end of the back cover 15, and the repairing rim A is fixed to the ground of the existing wall 1 by the fixture 11 having its head sunk in the fixing groove 5. Attached along the entire length in the lateral direction of the nearby lower end, the attachment piece 12 is fixed to the attachment receiving surface 7, the drainage 6 is attached to the repair rim A, and the locking piece 18 of the drainage 6 Is the leg piece 8 under the waist body 2
Of the sewage drain 6
Is characterized in that the lower end of the repair wall material 4 is mounted and supported.

According to a second aspect of the present invention, the fixing groove 5 is formed above the upper and lower central portions of the mounting surface 3 .

According to a third aspect of the present invention, an adjusting member 36 is interposed between the existing wall 1 and the repair rim A. In claim 4 , the adjusting member 36
Is disposed at the position of the fixture 11 for fixing the repairing rim A to the existing wall 1 to fill a gap between the existing wall 1 and the repairing rim A and to extend in the longitudinal direction of the repairing rim A Is a short filling member 38, and the elastic sealing material 21 is interposed between the existing wall 1 and the back cover 16 over the entire length of the repairing rim A below these adjusting members 36. It is a feature.

[0010] According to a fifth aspect of the present invention, the adjusting member 36 is a waterproof sheet material 37 for closing a crack in the existing wall 1.

[0011]

According to the first aspect of the present invention, there is provided a mounting tool having a repairing rim having a substantially U-shaped longitudinal section and a head submerged in its fixing groove.
Attach from the front side with. As in the prior art, the work of separately attaching the angle material or moving the repairing rim with respect to the angle material to absorb the unevenness of the existing wall 1 is omitted,
Further, the configuration is simplified. The head of the fixture 11 such as a nail is lowered into the fixing groove 5. The occurrence of unevenness due to the head of the fixture 11 is suppressed. The position of the mounting tool 11 is also changed as appropriate, and stable mounting is performed at a preferable position such as avoiding a reinforcing bar. Further, when the drainage 6 is fixed to the repair rim A in advance, the workability of the attachment is further enhanced. A lower surface covering portion 15 and a rear surface covering portion 16 are formed in the sewage drain 6, so that it is not necessary to separately provide a lower surface cover as in the related art, thereby improving workability. In addition, the locking piece 18 of the drainer 6 is connected to the leg piece 8 below the waist body 2.
And the upper part of the back of the drainer 6 can be attached.

According to the second aspect, the fixing groove 5 is formed above the upper and lower central portions of the mounting surface 3 so as to increase the vertical width of the mounting receiving surface 7. The lower end of the repair wall material 4 is stably received and fixed .

According to the third aspect, when the interposed adjusting member 36 is to function as a spacer, the existing wall 1 is required.
The gap d between the building and the repair rim A is filled to absorb the unevenness generated on the existing wall 1. The renovation wall material 4 can be installed on a predetermined surface of the renovation rim A, which absorbs the unevenness of the existing wall 1 and is exposed. In claim 4 , the adjusting member 36 interposed between the repairing rim A and the existing wall 1 at the location of the fixture 11 in the fixing groove 5 is short,
Even if there is a gap d between the repairing rim A and the existing wall 1 between the short adjusting members 36, 36,..., The existing wall is formed by the long elastic sealing material 21 existing below the gap d. Sufficient watertightness is achieved between 1 and drain 6. The adjustment member 36 absorbs the unevenness of the existing wall 1, and the repair rim A
The mounting receiving surface 7 is made substantially flush with the other waist edge 32, and the surface of the repair wall material 4 is brought out as specified. Enhance the finish. It prevents wind and rain and insects from entering the existing wall 1 through the gap d from the lower end of the repaired part.

According to the fifth aspect , even if the existing wall 1 has a crack, the crack is closed by the waterproof sheet material 37, and the infiltration of moisture is reliably prevented.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 (a) and 1 (b) show the repair rim A, and FIG. 1 (c) shows the construction state. Repair rim A
Is formed by bending a metal plate into a substantially U-shaped vertical cross section, and has a fixing concave groove 5 formed in the upper and lower middle portions of the mounting surface 3 on the front side of the trunk body 2 over the entire length in the horizontal direction. I have.
A mounting receiving surface 7 is formed below the fixing groove 5. At the bottom of the fixing groove 5, a concave streak 9 is further formed. The fixing groove 5 is formed above the center of the mounting surface 3 in the vertical direction, so that the width of the mounting receiving surface 7 below the fixing groove 5 is increased. Furring strip at the tip of the upper and lower leg 8,8 of the body 2 are formed folded piece 10
You.

[0016] As shown in FIG. 1 (c) and FIG. 2, is沿設laterally entire length of the lower end portion near the ground of the existing wall 1 refurbishment for furring strip A such mortar-finished reinforced concrete wall, for example, a piano The mounting receiving surface 7 of the repairing rim A is exposed to a predetermined surface using the line and the drawing line as a guide. That is, the repairing rim A is temporarily fixed to the mounting receiving surface of the other rims 32. Such temporary fixing is performed by ordinary means. Then, the repairing rim A is attached by driving a fixture 11 such as a nail into the recess 9 at the bottom of the fixing groove 5. In this case, as shown in FIG. 1C and FIG. 2, the existing wall 1 such as an iron plate or a wooden board is provided between the existing wall 1 and the repair rim A at the place where the fixture 11 is arranged. An adjustment member 36 for adjusting the unevenness of the existing wall 1 is interposed, and the repairing wall material 4 is stably fixed to the existing wall 1 while absorbing the unevenness of the existing wall 1. Such a construction is also performed on the other rim 32. The installation pitch P of the fixture 11 is 90
The thickness is about 0 to 1500 mm, and the thickness of the adjusting member 36 is different, but is about several millimeters.

A drain 6 is interposed between the repairing rim A and the base 33. The sewage drain 6 is formed by bending a rust-preventive metal plate, and is attached to the attachment receiving surface 7 of the repairing rim A in face-to-face contact. A mounting portion 13 for mounting the remodeling wall material 4, a surface portion 14, a lower surface cover portion 15 mounted on the base 33, and a back surface cover portion 16 abutting on the existing wall 1 are formed in series. ing. A concave groove 17 is formed in the rear cover 16 over the entire length in the lateral direction, and a locking piece 18 is raised on the rear cover 16.

Thus, the mounting piece 12 of the drainer 6 is in contact with the mounting receiving surface 7 of the repair rim A without any gap.
A starter 19 is in contact with the mounting piece 12, and the starter 19 and the drain 6 are fixed to the repairing rim A by a fixing tool 20 such as a screw. A packing is inserted into the concave groove 17 as an elastic sealing material 21, and the elastic sealing material 21 is in elastic contact with the surface of the existing wall 1 to increase watertightness at this location. A locking piece 18 is locked to the folded piece 10 of the leg piece 8.

As shown in FIG. 3 (b), the wall material 4 for repair has heat insulation and fire resistance by holding urethane foam 24 between the front and back metal plates 23 in a sandwich shape. A fitting projection 25 is formed at a lower end thereof, and a fitting recess 26 is formed at an upper end thereof. Further, a cover 27 is protruded from the fitting projection 25 side. A place 28 is formed.

[0020] Thus, refurbishment wall member 4 FIG. 1 (c) and FIG. 2, the locking piece 29 is renovation wall member 4 of the starter 19 with its lower end face is No設starter 19 And the cover 27 is inserted into the recess 28 of the drain drain 6 to prevent rainwater from flowing into the rear side of the renovation wall material 4. The upper end of the renovation wall material 4 is fixed to a body edge 32 that is long in the vertical direction by a self-drilling screw 31 in the recess 28. As the rim 32, a repair rim A is used, but other forms may be used. In the figure, reference numeral 35 denotes a packing.

As described above, the repairing rim A is attached to the existing wall 1 at the fixing groove 5 from the front side by the fixture 11. And, the receiving surface 7 for attachment of the repair rim A
The attachment piece 12 of the drainer 6 is attached from the front side with a fixture 20 such as a bolt. Thus, the workability for mounting can be improved while simplifying the configuration without the need for a conventional angle member. In addition, the drain cover 6 has a lower surface cover 15 and a lower surface cover 1.
6, an elastic sealing material 21 extending over the entire length of the repairing rim A is provided between the back cover 16 and the existing wall 1.
Are interposed to prevent the occurrence of a gap communicating with the existing wall 1 to the outside. That is, as shown in FIG. 2, the adjusting member 36 interposed at the location of the fixture 11 in the fixing groove 5 is short between the repairing rim A and the existing wall 1. Even if a gap d is formed between the repairing rim A and the existing wall 1 between the adjusting members 36, 36, the long elastic sealing material 2 existing thereunder
At 1, sufficient watertightness is achieved between the existing wall 1 and the drain 6. In this manner, the adjusting member 36 absorbs the unevenness of the existing wall 1, and the mounting receiving surface 7 of the repair rim A is made substantially flush with the other rim 32, and the repair wall material 4 ...
Can be taken out as predetermined, and the finish can be improved, while preventing the rain and insects from entering the existing wall 1 from the gap d from the lower end of the repaired part.

Moreover, the fixing groove 5 is formed over the entire length in the lateral direction, and the fixing tool 5 such as a nail is inserted into the fixing groove 5.
Is suppressed, and the occurrence of irregularities due to the head of the fixture 11 is suppressed. Then, the position of the fixture 11 can also be changed to an appropriate position of the fixing groove 5 extending over the entire length in the lateral direction, and this can easily be avoided when the existing wall 1, for example, a reinforcing bar interferes. .

By the way, a fixing groove 5 is formed above the upper and lower central portions of the mounting surface 3 so that the upper and lower widths of the mounting receiving surface 7 are widened. It can be stably received and fixed. In the above embodiment, the adjusting member 36 is the filling member 38 having only the function of the spacer, but the adjusting member 36 has the function of closing the cracks of the existing wall 1 in addition to the function of the spacer. The material 37 may be used.

By the way, as shown in FIG. 5, there is a case where the repairing rim A is directly abutted on the existing wall 1 at the bulging portion of the existing wall 1 on the uneven land. FIG. 6 shows another embodiment, in which a starter 19 is formed in a series of drains 6, and a waterproof sheet material 37 is stretched over the entire surface of the existing wall 1 made of concrete to crack the existing wall 1. Covering. The waterproof sheet member 37 is used as an adjusting member 36.

FIG. 7 shows still another construction form, in which the renovation wall material 4 is constructed in a vertical roofing form connecting left and right and lateral directions as shown in FIG. . In this case, the same shape as the repairing rim A is used as the rim 32, which is installed horizontally and horizontally at an interval above. The existing wall 1 to be repaired may be a tile wall or the like.

[0026]

According to the first aspect of the present invention, the body of the rim is formed in a substantially U-shape in vertical section, and a fixing groove is formed in the upper and lower middle portions of the mounting surface on the front side of the body of the rim over the entire length in the lateral direction. Below the fixing groove, a mounting receiving surface is formed to face the drainage to prevent rainwater from entering the indoor side from the lower end surface of the renovation wall material, and a mounting receiving surface is formed, forming a refurbishment rim. is, the lower flashing secured to repair for furring strips refurbishment and attachment piece
A mounting portion for mounting and supporting a lower end portion of the wall material, a lower surface covering portion for preventing wind and rain from being blown from the ground side, and a rear covering portion, and a locking piece is formed at an upper end portion of the rear covering portion. The repairing rim is attached along the entire length of the lower end of the existing wall near the ground in the horizontal direction with the mounting tool whose head is sunk in the fixing groove, and the mounting piece is attached to the mounting receiving surface. It is fixed and the drainage is attached to the refurbishment rim, the locking piece of the sewage drainage is locked to the folded back piece of the leg under the hull body, and the renovation wall material Since the lower end is placed and supported, the repair rim with a substantially U-shaped vertical section is attached from the front side with a mounting tool whose head is sunk in its fixing groove. The work of attaching the angle material separately or moving the repair rim to the angle material to absorb the unevenness of the existing wall is omitted. It can simplify the structure by omitting the angle material, improve the workability, and sink the head of the fixture such as a nail into the fixing groove. There is an advantage that the occurrence can be suppressed, and the position of the mounting tool can be appropriately changed, so that stable mounting can be performed at a preferable position avoiding the reinforcing bar. Further, when the drainage is fixed to the repair rim in advance, the workability of the attachment can be further improved, and the drainage drain has a lower surface cover portion and a rear surface cover portion. Therefore, unlike the related art, there is no need to separately provide a lower surface cover, and there is an advantage that workability can be improved .

According to the second aspect of the present invention, since the fixing concave groove is formed above the upper and lower central portions of the mounting surface, the vertical width of the mounting receiving surface can be increased, and the repair wall material can be formed. There is an advantage that the lower end can be stably received and fixed .

According to the third aspect of the present invention, since the adjusting member is interposed between the existing wall and the refurbishment rim, when the interposed adjusting member functions as a spacer, the adjusting member is interposed between the existing wall and the repairing rim. It is possible to absorb the unevenness that has occurred on the existing wall by filling the gap between the repair wall and the repair wall. The material can be constructed on a predetermined surface, and good renovation can be performed.

According to a fourth aspect of the present invention, the adjusting member is disposed at a position of a fixture for fixing the repairing rim to the existing wall, and fills a gap between the existing wall and the repairing rim, and adjusts the repairing rim. It is a short filling member in the length direction of the edge, and an elastic sealing material is interposed between the existing wall and the back cover portion over the entire length of the repair trunk edge below these adjustment members,
That is, between the repairing rim and the existing wall, the adjusting member to be interposed at the location of the fixture in the fixing groove is short, and the repairing rim and the existing wall are interposed between the short adjusting members. Even if there is a gap between the existing wall and the drain, it is possible to achieve sufficient watertightness with the long elastic sealing material that exists below the gap, and the adjustment member Absorbs irregularities, makes the receiving surface of the refurbishment rim substantially flat with other rims, and allows the surface of the renovation wall material to come out as specified, improving the finish. In addition, there is an advantage that it is possible to prevent wind and rain and insects from entering the existing wall from the gap from the lower end of the repaired portion.

According to the fifth aspect , since the adjusting member is a waterproof sheet material for closing cracks in the existing wall, even if the existing wall has cracks, the adjusting member closes the cracks with the waterproof sheet material to ensure the infiltration of moisture. There is the advantage that it can be blocked.

[Brief description of the drawings]

[1] shows one embodiment of the present invention, (a) is a vertical sectional view of the renovation for furring strip, (b) is broken front view, (c)
Is a sectional view of the construction state .

FIG. 2 is a sectional view taken along line XX of FIG. 1 (c) .

FIG. 3 shows a construction state of the above, (a) is a perspective view,
(B) is a vertical cross-sectional view showing the joining form of the repair wall material.

FIG. 4 is a horizontal sectional view of the same.

FIG. 5 is a vertical sectional view of another construction site according to the first embodiment.

FIG. 6 is a vertical sectional view of another construction mode of the above.

7A and 7B show other construction modes of the above, wherein FIG.
(B) is a partial enlarged sectional view in the vertical direction.

FIG. 8 is a vertical sectional view of a conventional example.

FIG. 9 is a vertical sectional view of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Existing wall 2 Trunk edge main body 3 Mounting surface 4 Renovation wall material 5 Fixing groove 6 Drainage 7 Mounting receiving surface 15 Lower surface covering portion 16 Back surface covering portion 21 Elastic sealing material 36 Adjusting member

Claims (5)

(57) [Claims] 1. A waist body is formed in a substantially U-shape in vertical section,
A fixing groove is formed over the entire length in the lateral direction at the upper and lower middle part of the mounting surface on the front side of the trunk body, and below the fixing groove, rainwater from the lower end surface of the repair wall material to the indoor side is formed. A mounting receiving surface for mounting the drainage to prevent intrusion in an interview is formed to form a repair rim, and the drainage piece fixed to the repair rim includes a mounting piece and the lower end of the repair wall material. A mounting portion for mounting and supporting, a lower surface covering portion for preventing wind and rain from being blown from the ground side and a rear surface covering portion are formed, a locking piece is formed at an upper end portion of the rear surface covering portion, and the fixing groove is formed in the fixing groove. The repairing rim is attached along the entire length of the lower end of the existing wall near the ground in the horizontal direction using the mounting tool with the head sunk, and the mounting piece is fixed to the mounting receiving surface to repair drainage Is attached to the hull, and the catch piece of the drainage is folded back under the hull body.
A repair structure for an existing wall, wherein the structure is locked to a piece, and a lower end portion of the repair wall material is placed and supported on a placement portion of the drain. 2. The renovation structure of an existing wall according to claim 1, wherein a fixing groove is formed above the upper and lower central portions of the mounting surface. 3. The repair structure for an existing wall according to claim 1, wherein an adjusting member is interposed between the existing wall and the repair rim. 4. The adjusting member is disposed at a position of a fixture for fixing the repairing rim to the existing wall, and fills a gap between the existing wall and the repairing rim, and has a length of the repairing rim. The filling member having a short length in the direction, and an elastic sealing material is interposed between the existing wall and the back cover portion over the entire length of the repairing rim under the adjusting member.
The renovation structure of the existing wall described. 5. The repair structure for an existing wall according to claim 1, wherein the adjusting member is a waterproof sheet material that closes a crack in the existing wall.