JPH0853922A - Repairing structure of existing wall - Google Patents

Abstract

PURPOSE:To avoid the entrance of rainwater or the entrance of an insect caused when a clearance occurs between a repairing wall material and a lower throating, and restrain even the occurrence of a clearance between repairing furring strips and an existing wall by avoiding restriction imposed on fixation of the repairing furring strips, and fixing them in any position in its total length. CONSTITUTION:A fixing recessed groove 5 is formed over the total length in the lateral direction in upper and lower intermediate parts of an installing surface 3 on the obverse side of a vertical cross-sectional almost U-shaped furring strips body 2. An installing receiving surface 7 is formed under the fixing recessed groove 5, and repairing furring strips A are constituted. The repairing furring strips A are arranged and installed along the total length in the lateral direction of a lower end part close to the ground surface of an existing wall 1 by an installing tool 11 whose head part is sunk in the fixing recessed groove 5. A lower throating 6 is fixed at the installing piece 12 to the installing receiving surface 7 by a fixing tool. A fitting recessed part and a fitting projecting part are respectively formed in both left and right end parts of a repairing wall material 4. The lower end of the repairing wall material 4 is placed on and held by a placing part 13 of the lower throating 6. The left and right repairing wall materials 4 and 4 are fitted in a recess-projection shape to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for repairing an existing wall, and more particularly, to a structure for repairing a cement-based existing wall such as a concrete wall or a mortar wall in which reinforcing bars are embedded. Technology that simplifies the construction and improves the workability, and in particular, avoids the formation of a gap between the existing wall and the existing uneven surface, and tries to prevent rainwater and insects from entering through the gap. It is related to.

[0002]

2. Description of the Related Art In recent years, for example, as shown in FIG. 5, an existing cement-based wall 1 is used to repair a wall by applying a repairing wall material 4a having a metal outer skin. Wall 1
An L-shaped angle material a called "cat" is fixed to the wall surface with bolts, and the angle material a is used to repair the C-shaped steel A
A is supported, and a drainage drain 6a is attached to the repair furring strip Aa, so that the lower part of the repair wall material 4a whose lower end is supported by the repair furring strip Aa is water-removed.

By the way, in such a repair structure, an angle member a for fixing the repair furring strip Aa is required separately, and in order to fix the angle member a, a fixing bolt for fixing the angle member a is provided inside the existing wall 1. When hitting the rebar, the position of the angle member a has to be shifted, the workability is greatly reduced, and the repair furring strip Aa supported by the angle member a is moved inside and outside according to the unevenness of the existing wall 1. The position is slid and changed to absorb the irregularities of the existing wall 1, and the outer surface of the repair furring strip Aa is flush with the mounting surface of the other furring strip and bolted. , It is necessary to fix it to the repair furring strip Aa, and the fixing direction is different, which leads to poor workability, and the use of the angle member a makes the existing wall 1 and the repair furring strip Aa different from each other. An unnecessary gap D is required between The outer surface position of use the wall member 4a is that unnecessarily protrude to the outside. Furthermore, drainage 6 with an approximately L shape
In the case of a, the cover c is indispensable on the bottom surface side, a space S for construction is required between the cover and the ground to 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 bracket e.
To fix the wall to the existing wall 1 and cover the bracket e.
There is a problem in that workability is deteriorated also in this point because work for fixing c is required.

As another conventional example, as shown in Japanese Examined Patent Publication No. 5-43823 shown in FIG. 6, a substantially crank-shaped base drainer 6d is brought into face contact with an existing wall 1 and fixed, and the base drainer 6d is mounted. The lower end of the vertically long repair furring Ab is placed on the installation piece 6b and fixed to the existing wall 1, and the repair wall 4a is fixed to the repair furring Ab to repair the existing wall. There is a configuration to do.

However, in such a structure, the base drainer 6d is mounted by directly abutting against the mortar-finished cement-based existing wall 1, so that the unevenness of the mortar-finished existing wall 1 is formed. As a result, there is a problem in that a gap d is formed between the base drainer 6d and rainwater intrudes into this portion in the direction of arrow a, and insects enter the room.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is mainly to repair an existing cement-based wall and to provide a structure for the repair. Simplify and improve workability, especially
It is possible to avoid the formation of gaps between the existing walls with irregularities and to prevent rainwater and insects from entering through the gaps. There is an attempt to provide a structure for repairing an existing wall, which can favorably repair the existing wall while using the vertically-roofed form.

[0007]

According to a first aspect of the present invention, a furring strip body 2 is formed in a generally U-shaped vertical cross section, and a total lateral length is provided at an upper and lower intermediate portion of a mounting surface 3 on the front side of the furring strip body 2. The fixing recessed groove 5 is formed over, and below the fixing recessed groove 5,
A repair furring strip A is formed by forming a mounting receiving surface 7 for mounting a drainage drain 6 for preventing rainwater from entering the interior side from the lower end surface of the repairing wall material 4 by interviewing. The drainer 6 fixed to the lower part has a mounting piece 12, a mounting portion 13 for mounting and supporting the lower end portion of the existing wall 1, a lower surface covering portion 15 and a rear surface covering portion 16 for preventing wind and rain from being blown from the ground side. The repair furring A is formed along the lateral length of the lower end portion of the existing wall 1 near the ground by the mounting tool 11 which is formed and has its head sunk in the fixing groove 5. The mounting piece 12 of the drainage device 6 is fixed to the receiving surface 7, and the fitting concave portions 26 and the fitting convex portions 25 are formed at both left and right ends of the repair wall member 4, and the lower end of the repair wall member 4 is lowered. It is mounted and held on the mounting portion 13 of the drainer 6, and the left and right repair wall members 4 ... It is an butterfly.

According to a second aspect of the present invention, the adjusting member 36 is interposed between the existing wall 1 and the repair furring strip A. In claim 3, the adjusting member 36
Is arranged at the position of the fixture 11 for fixing the repair furring A to the existing wall 1 so as to fill the gap between the existing wall 1 and the repair furring A and to extend the length direction of the repair furring A. Is a short filling member 38, and the elastic sealing material 21 is interposed below the adjusting members 36 ... Between the existing wall 1 and the back cover portion 16 over the entire length of the repair furring A. It is a feature.

According to a fourth aspect of the present invention, the adjusting member 36 is a waterproof sheet material 37 that closes cracks in the existing wall 1.

[0010]

According to the first aspect of the present invention, there is provided a mounting tool 11 in which a repair furring strip A having a substantially U-shaped vertical cross section is sunk in its fixing groove 5.
Install from the front side. There is no need to separately install an angle member or move the repair furring strip with respect to the angle member to absorb the unevenness of the existing wall 1 as in the conventional case.
Simplify the structure by eliminating the angle material. The head of the fixture 11 such as a nail is sunk into the fixing groove 5. It suppresses the occurrence of unevenness due to the head of the fixture 11. The position of the fixture 11 is also changed as appropriate so that stable attachment can be performed at a preferable position while avoiding the reinforcing bars. The drainage 6 can also be attached from the front side. Improve workability. When the sewer drainer 6 is fixed in advance to the repair furring strip A in advance, the workability of its attachment is further enhanced. A lower surface covering portion 15 and a rear surface covering portion 16 are formed in the drainage device 6, and it is not necessary to additionally attach a lower surface cover as in the conventional case, and workability is improved. The repair wall members 4 and 4 are fitted on the left and right sides in a concavo-convex manner. The repairing wall material 4 in a vertically long shape in which the repairing wall material 4 is installed vertically is stably fixed.

In the second aspect of the present invention, when the interposed adjusting member 36 has a function of a spacer, the existing wall 1
The gap between the wall and the furring strip 4 for repairing is filled up to absorb the unevenness generated in the existing wall 1. In this manner, the repair wall material 4 is applied to the repair furring A, which is exposed to the surface of the existing wall 1 by absorbing the unevenness, on a predetermined surface. Make good repairs. In claim 3, the adjusting member 36 interposed between the repair furring strip A and the existing wall 1 at the location of the fixture 11 in the fixing groove 5 is short, and this short adjusting member is provided. Even if there is a gap d between the refurbishment furring A and the existing wall 1 in the space 36, the long elastic seal member 21 existing below the gap d between the existing wall 1 and the drainage 6 Ensure sufficient water tightness. The adjustment member 36 absorbs the unevenness of the existing wall 1 and the mounting receiving surface 7 of the repair furring strip A is replaced with another furring strip 32.
And make it almost flush. The surface of the repairing wall material 4 is put out in a predetermined manner.
Improves finishability. It prevents wind and rain and insects from entering the existing wall 1 through the gap d from the lower end of the repaired portion.

According to the present invention, even if the existing wall has cracks, the cracks are closed by the waterproof sheet material to surely prevent the infiltration of moisture.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 (a) and 1 (b) show the furring strip A for repair, and FIG. 1 (d) shows its construction. Furnishing A for repair
Is a metal plate that is bent into a substantially U-shaped vertical cross section, and has a fixing groove 5 formed in the upper and lower intermediate portions of the mounting surface 3 on the surface side of the furring strip body 2 over the entire lateral length. There is.
An attachment receiving surface 7 is formed below the fixing groove 5. A concave strip 9 is further formed on the bottom of the fixing groove 5. The fixing groove 5 is formed above the center of the mounting surface 3 in the vertical direction, and the vertical width of the mounting receiving surface 7 below the fixing groove 5 is widened. A folded-back piece 10 is formed at the tips of the upper and lower leg pieces 8, 8 of the furring strip body 2. The folded-back piece 10 may be omitted as shown in FIG.

As shown in FIGS. 1 (d) and 2, the repair furring A is provided along the entire lateral length of the lower end of the existing wall 1 of the reinforced concrete wall, such as a mortar finish, near the ground, for example, a piano. The attachment receiving surface 7 of the repair furring strip A is exposed to a predetermined surface by using a wire or a water-drawing thread as a guide. In other words, the repair furring strip A is temporarily fixed flush with the mounting receiving surface of the other furring strip 32. Such temporary fixing is performed by a normal means. Then, the repair furring strip A is mounted by driving a fitting 11 such as a nail into the groove 9 at the bottom of the fixing groove 5. In this case, as shown in FIGS. 1 (d) and 2, between the existing wall 1 and the furring strip A for repair, the existing wall 1 such as an iron plate or a wooden board is installed at a place where the fixture 11 is arranged. The 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 construction is also performed on the other furring strip 32. The installation pitch P of the fixture 11 is 90
The thickness of the adjusting member 36 is about 0 mm to 1500 mm, which is different from each other, but is about several millimeters. A sewage drainer 6 is provided between the repair furring A and the base 33. This drainer 6
Is a mounting plate 12 which is formed by bending a metal plate that has been subjected to anti-corrosion treatment, and is mounted in contact with the mounting receiving surface 7 of the repair furring strip A, and a repair wall that is continuous with this mounting plate 12. A placing portion 13 on which the material 4 is placed, a surface portion 14, a lower surface covering portion 15 placed on the base 33, and a back surface covering portion 16 abutting on the existing wall 1 are formed in series. A recessed groove 17 is formed on the rear surface covering portion 16 over the entire length in the lateral direction, and a locking piece 18 is raised on the rear surface covering portion 16.

Then, the mounting piece 12 of the drainage drain 6 is brought into contact with the mounting receiving surface 7 of the repair furring strip A without a gap, and the drainage drain 6 is fixed to the repair furring strip A by a fixing tool 20 such as a screw. Fixed. A packing is inserted into the groove 17 as an elastic seal material 21, and the elastic seal material 21 makes elastic contact with the surface of the existing wall 1 to enhance the watertightness at this portion. In addition, the locking piece 18 is the folded piece 10 of the leg piece 8.
Is locked to.

As shown in FIG. 3 (b), the repairing wall member 4 has urethane foam 24 sandwiched between the front and back metal plates 23, 23 and has heat insulation and fire resistance. , A fitting convex portion 25 is formed at one end of the lateral direction, and a fitting concave portion 26 is formed at the other end thereof.
The cover piece 27 is projected, and a recess 28 is formed in the fitting recess 26.

Therefore, as shown in FIGS. 1 (d) and 2, the repairing wall member 4 has a lower end surface on which the mounting portion 1 having the drainage 6 is installed.
3 is fixed to the repair furring rim A and the furring rim 32 attached substantially parallel to the repair furring A by a self-drilling screw 31 in a recess 28 at one end in the left-right direction of the repair wall member 4. Then, the covering piece 27 at the end portion of the adjacent repairing wall member 4 is engaged in the recess 28, and the self-drilling screw 31 is hidden to make the connection. In the figure, 35 is a packing.

In this manner, the repair furring strip A is attached to the existing wall 1 in the fixing groove 5 from the front side by the fixture 11. Then, the receiving surface 7 for attaching the repair furring A
The attachment piece 12 of the drainage device 6 is attached to the front side from the front side by a fixture 20 such as a bolt. Thus, the workability for mounting is improved while simplifying the configuration without the need for an angle member as in the prior art. Moreover, the drain cover 6 includes a lower surface cover portion 15 and a rear surface cover portion 1.
6 is formed, and between the rear surface covering portion 16 and the existing wall 1, an elastic sealing material 21 extending over the entire length of the furring strip A for repairing is provided.
Is interposed to prevent a gap communicating with the existing wall 1 from being formed outside. That is, as shown in FIG. 2, the adjusting member 36 interposed between the repair furring strip A and the existing wall 1 at the position of the fixture 11 in the fixing groove 5 is short, and the adjusting member 36 is short. Even if there is a gap d between the repair furring strip A and the existing wall 1 between the adjusting members 36, 36, the long elastic seal material 2 existing below the gap d.
At 1, the water is sufficiently sealed between the existing wall 1 and the drainage device 6. In this way, the adjusting member 36 ... Absorbs the unevenness of the existing wall 1 so that the mounting receiving surface 7 of the repair furring A is approximately flush with the other furring 32, and the repair wall material 4 ...
The surface can be projected in a predetermined manner, and the finishability can be improved, but wind and rain and insects can be prevented from entering the existing wall 1 through the gap d from the lower end of the repaired portion.

Moreover, the fixing groove 5 is formed over the entire length in the lateral direction, and a fitting 11 such as a nail is attached to the fixing groove 5.
The head of the fixture 11 is sunk to suppress the occurrence of irregularities due to the head of the fixture 11. Further, the position of the fixture 11 can also be changed to an appropriate position of the fixing groove 5 over the entire length in the lateral direction, and this can be easily avoided when, for example, the reinforcing bar of the existing wall 1 interferes. .

By the way, a fixing groove 5 is formed above the upper and lower central portions of the mounting surface 3 to widen the vertical width of the mounting receiving surface 7, and the lower end of the repairing wall member 4 is Can be stably received and fixed. Further, in the above-mentioned 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. 4 (a), the furring strip A for repair is constructed by contacting the existing wall 1 with the waterproof sheet material 37 at the bulging portion of the existing wall 1 in the unsteady state. There is a case. In this case, as shown in FIG. 4B, the waterproof sheet material 37 does not exist, and the repair furring strip A may be brought into direct contact with the repair wall material 4. The existing wall 1 to be repaired may be a tile wall or the like.

[0022]

According to the first aspect of the present invention, the furring strip body is formed in a substantially U-shaped vertical cross section, and the fixing groove is formed in the upper and lower intermediate portions of the mounting surface on the front side of the furring strip body over the entire lateral length. Under the fixing groove, an attachment receiving surface for attaching a sewer drainage that prevents rainwater from entering the indoor side from the lower end surface of the repair wall material is formed and a repair furring strip is formed. Therefore, it is possible to attach the repairing furring with a substantially U-shaped vertical section from the front side with a mounting tool whose head is sunk in the fixing groove. It is possible to separately install or remove the work for absorbing the unevenness of the existing wall by moving the refurbishment rim with respect to the angle material, simplifying the configuration by omitting the angle material and improving workability. The head of a fixture such as a nail can be submerged in the fixing groove, It is possible to suppress the occurrence of irregularities due to the head of the tool, and to change the position of the fitting appropriately, so that stable mounting can be performed at a preferred position while avoiding the reinforcing bar, and the repair body The drainer fixed to the edge is provided with a mounting part, a mounting part for mounting and supporting the lower end part of the existing wall, a bottom cover part and a back cover part for blocking the blowing of wind and rain from the ground side, for fixing. With the fixture with its head submerged in the groove, the repair furring is installed along the entire lateral length of the lower end of the existing wall near the ground, and the mounting piece is fixed to the mounting receiving surface. Since the drainage drain is attached to the repair furring and the lower end of the wall material for repair is placed and supported on the mounting part of the drainage drainer, the installation of the drainage drainer can be done from the front side, workability And if you have fixed the drainage to the refurbishment rim in advance, It is possible to further improve the workability of its installation, and since the lower drain cover and the rear cover are formed in the drainage, there is no need to attach a separate lower cover as in the conventional case. There is an advantage that workability can be improved. In addition, the wall material for repair is installed and held on the mounting part of the drainage, the wall material for repair is fitted on the left and right, and the wall material for repair is installed vertically in this way. There is an advantage that the wall material can be fixed stably.

According to the second aspect of the present invention, since the adjusting member is interposed between the existing wall and the repair furring strip, when the interposed adjusting member has a function of the spacer, the adjusting member is not included in the existing wall. The gap between the repair wall and the repair wall can be filled up to absorb the unevenness on the existing wall. In this way, the repair wall is exposed to the uneven surface of the existing wall and the repair wall is exposed. The material can be constructed on the specified surface, and good repair can be done.

According to a third aspect of the present invention, the adjusting member is arranged at a position of a fixture for fixing the repair furring strip to the existing wall, and fills a gap between the existing wall and the repair furring strip, and at the same time, the repair barrel. It is a short filling member in the length direction of the edge, and since the elastic sealing material is interposed over the entire length of the furring strip for repair between the existing wall and the back cover portion below these adjusting members,
That is, the adjusting member interposed between the repair furring strip and the existing wall at the location of the fitting in the fixing groove is short, and the repair furring and the existing wall are located 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 between the existing wall and the drainage drain by the long elastic seal material that exists below the gap. While absorbing the unevenness, the mounting surface of the repair furring strip is approximately flush with other furring strips, and the surface of the repair wall material can be brought out as specified, improving the finishability. The advantage is that it is possible to prevent wind and rain and insects from entering the existing wall through the gap from the lower end of the refurbished part.

In the present invention, since the adjusting member is a waterproof sheet material that closes the cracks in the existing wall, even if the existing wall has a crack, the waterproof sheet material closes the cracks to ensure the infiltration of moisture. The advantage is that it can be blocked.

[Brief description of drawings]

1 shows an embodiment of the present invention, (a) is a vertical cross-sectional view of a repair furring, (b) is a broken front view, (c)
Is a vertical sectional view of another embodiment, and (d) is a vertical sectional view of a construction state.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3A is a perspective view of a construction state, and FIG. 3B is a horizontal cross-sectional view showing a joint form of the wall material for repair.

4A and 4B are cross-sectional views of other embodiments.

FIG. 5 is a vertical cross-sectional view of a conventional example.

FIG. 6 is a vertical cross-sectional view of another conventional example.

[Explanation of symbols]

 1 Existing Wall 2 Furnace Main Body 3 Mounting Surface 4 Repair Wall Material 5 Fixing Groove 6 Draining Drain 7 Mounting Receiving Surface 11 Mounting Tool 13 Mounting Section 20 Fixing Tool 25 Fitting Convex Section 26 Fitting Recession 36 Adjustment Material 37 Waterproof sheet material

Claims (4)

[Claims] 1. The furring strip body is formed in a generally U-shaped vertical cross section,
A fixing groove is formed over the entire length in the horizontal direction in the upper and lower intermediate portions of the mounting surface on the surface side of the furring strip body, and rainwater from the lower end surface of the repair wall material to the indoor side is formed below the fixing groove. The refurbishment rim is formed by mounting the receiving surface for mounting the sewer drainage that prevents invasion, and the mounting piece and the lower end of the existing wall are mounted on the sewage drainer that is fixed to the refurbishment rim. A supporting mounting part, a lower surface covering part and a rear surface covering part for preventing wind and rain from blowing from the ground side are formed, and a refurbishment rim is already installed with a fixture whose head is sunk in the fixing groove. It is installed along the entire length of the lower end of the wall near the ground in the horizontal direction, and mounting pieces for draining are fixed to the mounting receiving surface, and fitting recesses and fittings are fitted to the left and right ends of the repair wall material, respectively. A convex portion is formed, and the lower end of the repair wall material is placed and held on the drainage installation part, and the left and right repair walls Renovation structure of the existing wall but which is characterized by comprising been uneven fitted to the left and right. 2. The repair structure for an existing wall according to claim 1, wherein an adjusting member is interposed between the existing wall and the repair furring strip. 3. The adjusting member is arranged at a position of a fixture for fixing the repair furring strip to the existing wall, and fills a gap between the existing wall and the repair furring strip and the length of the repair furring strip. 3. A filling member which is short in the direction, and an elastic sealing material is interposed below the adjusting members between the existing wall and the back cover portion over the entire length of the repair furring strip.
Refurbished structure of the existing wall described. 4. The repair structure for an existing wall according to claim 2, wherein the adjusting member is a waterproof sheet material that closes cracks in the existing wall.