JP6354041B1 - Repair member and repair method of structure - Google Patents

Abstract

The present invention provides a repair member and a repair method for a structure that can be restored to a structure having a harmonious appearance. A repair member 10 for a structure, which includes a first face body 12 made of a right-angled triangular plate material, a second face body 14 made of a right-angled triangular plate material that is perpendicular to the first face body, and a first face body 14. The triangular pyramid-shaped main body 60 having the third face body 16 made of a right-angled triangular plate material that is perpendicular to the monohedron and the second face body, and the first face body, the second face body, and the third face body share the same. A fixed end 44 is joined to the inner wall of the top portion 32, and the other end portion 46 is provided with a shaft 40 serving as a free end. [Selection] Figure 1

Description

  The present invention relates to a repair member and a repair method for a structure in which a corner portion is formed.

  Take stairs as an example of a structure. A staircase composed of tiles or the like has a plurality of flat surfaces with different heights. In the staircase where the corner is formed at the end of this flat surface, the corner may be missing or missing if an impact caused by a heavy object dropping or a pedestrian shoe sole is applied to the corner. is there.

Conventionally, as a method of repairing a staircase when a corner of a staircase is missing or missing, there is a method of peeling a tile or the like that constitutes a missing or missing corner and pasting a new tile or the like to the peeled location. Are known.
According to this repair method, the work becomes complicated and there is a risk that the corner of the staircase may be lost again if an impact is again applied to the corner of the staircase due to the fall of heavy objects or the soles of pedestrians. . Also, if the corner of the staircase is composed of three tiles, only one of the three tiles is peeled off and the peeled part is replaced with a new tile. The color tone of the other two tiles was different from the color tone of the new tile, and the appearance was not harmonious and the aesthetics could be impaired.
Regarding a technique for repairing a missing portion of a staircase, Patent Document 1 discloses a cover member that protects a tread surface portion and a kick surface portion of a staircase.

JP 2003-184252 A

  The present invention was created in view of the above problems, and the purpose of the present invention is to prevent the corners of the structure from being affected by the impact caused by the fall of heavy objects or repeated shoe soles by a pedestrian. An object of the present invention is to provide a repair member and a repair method for a structure that can be restored to a structure that is not missing and has a harmonious appearance.

A first aspect of the present invention is a repair member for a structure,
A first face body made of a right-angled triangular plate material, a second face body made of a right-angled triangle-shaped plate material that is perpendicular to the first face body, and a right-sided triangle shape that is perpendicular to the first face body and the second face body A shaft having a fixed end joined to the inner wall of the first top shared by the first face, the second face and the third face, and the other end being a free end; It has.
By attaching the repair member of the structure to the corner part of the structure with the missing part, the corner part is less likely to be missed even when a heavy object falls or a pedestrian repeatedly impacts the shoe bottom. A beautiful sensation is obtained.

A second embodiment of the present invention is a method for repairing a structure using the repair member for a structure described in the first embodiment,
Cutting the top plate, the first side plate and the second side plate in accordance with the shape of the repair member of the structure, forming a bottom surface at the corner of the structure, opening a joint hole in the bottom surface, And applying an adhesive to the joint hole. The repair method of the structure is such that the shaft of the repair member of the structure is inserted into the joint hole, the first face body and the top plate are in the same plane, the second face body and the first side plate are in the same plane, And attaching the repair member of the structure by aligning the face body and the second side plate of the structure so as to be in the same plane.
Since the facets of the repair member and the surface of the staircase are on the same plane, the appearance of the repairing member does not go away and the appearance is good. In addition, the shaft is firmly bonded to the joint hole and can withstand repeated impacts.

It is a top view of the repair member concerning a first embodiment of the present invention. It is an II direction arrow line view of FIG. FIG. 3 is a view in the direction of arrow III in FIG. 2. FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is a flowchart of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is explanatory drawing of the usage method of the repair member which concerns on 1st embodiment of this invention. It is a front view of the shaft which concerns on 2nd embodiment of this invention. It is a top view of the main body concerning a third embodiment of the present invention. It is explanatory drawing of the usage method of the repair member which concerns on 3rd embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the following several embodiment, the same code | symbol is attached | subjected to the same component and description is abbreviate | omitted.
(First embodiment)
The repair member of the structure which concerns on 1st embodiment of this invention is demonstrated based on FIGS. 1-4. The repair member 10 according to the present embodiment is applied to repair a missing portion at a corner of a staircase.
The repair member 10 includes a main body 60 having a triangular pyramid appearance, and a shaft 40 connected to the main body 60. The first face body 12, the second face body 14, and the third face body 16 constituting the main body 60 are right-angled isosceles triangular plate members that form 90 ° with each other. The triangular pyramid-shaped main body 60 and the shaft 40 having no bottom surface are made of metal, and for example, SUS304 having good rust prevention and high hardness is used.

The first shared side 26 is a side shared by the first face body 12 and the second face body 14. The second shared side 28 is a side shared by the first face 12 and the third face 16. The third shared side 30 is a side shared by the second face 14 and the third face 16.
The first top portion 32 is a vertex portion shared by the first face body 12, the second face body 14, and the third face body 16. The second top portion 34 is a vertex portion shared by the first face body 12 and the second face body 14. The third top portion 36 is a vertex portion shared by the second face body 14 and the third face body 16. The fourth apex portion 38 is a vertex portion shared by the first face body 12 and the third face body 16.

The repair member 10 is manufactured as follows.
The first face body 12, the second face body 14 and the third face body 16 are joined to each other so that they form 90 ° with each other, and the respective sides are joined by welding from the inside of each face body.
An end 44 as a “fixed end” of the shaft 40 is joined to the inside of the first top 32 by welding. The other end 46 as the “free end” of the shaft 40 is not fixed.

  The first top portion 32, the first shared side 26, the second shared side 28, and the third shared side 30 are each chamfered from the outside with a grinder and a paper file, so that the surface has a smooth and gentle convex shape. Like that.

The usage example of the repair member 10 is demonstrated based on FIG. 1 and FIGS. 5-8.
First, a method of forming the staircase 100 as a structure using a repair member and a missing tile generated at a corner portion of the staircase 100 will be described.
As shown in FIG. 5, a rectangular concrete block 102 is installed on a lower flat surface 101 such as the ground. The concrete block 102 rises perpendicularly from the lower flat surface 101 to the upper flat surface 103, the first side surface 104 that rises perpendicularly from the lower flat surface 101 to the upper flat surface 103, and first The second side surface 105 is in contact with the side surface 104 at a right angle.
As shown in FIG. 6, the top plate 110, the first side plate 112, and the second side plate 114 are attached to the upper flat surface 103 with an adhesive to form the staircase 100.

  FIG. 7 shows a state where an impact or the like is applied to the corner portion of the staircase 100 and a part of the top plate 110 is missing. Part of the upper flat surface 103 of the concrete is exposed due to the lack of the corners of the top plate 110. If there is such a lack, harmony is lost and the sense of beauty is impaired. Furthermore, rainwater or the like permeates when it rains, and the adhesiveness between the top plate 110 and the concrete deteriorates, and the area of the missing portion increases.

The repair member 10 is attached to the corner of the staircase 100 as follows.
The top plate 110, the first side plate 112, and the second side plate 114 are cut out according to the shapes of the first face body 12, the second face body 14, and the third face body 16 of the repair member.
Open a hole for the shaft to enter the corner of the staircase. The adhesive is applied, and the repair member 10 is attached to the corner of the step as shown in FIG.

The effect which repaired using the repair member 10 which concerns on this embodiment for the tile missing of the corner part of the staircase 100 as a structure is demonstrated.
The repair member 10 can be made by welding only from a metal plate made of SUS304 and a shaft, and is low in cost and easy to carry.
Since the repair member 10 is a material having high hardness, it is less likely to break even when subjected to repeated impacts from the shoe sole or the impact of falling objects, compared to the tile top plate 110, etc. I can bear it. In addition, it has high rust prevention properties, and its appearance is unlikely to deteriorate even after long-term use.

  The repair member 10 repairs only the missing portion, and can be used as it is except for the missing portion of the top plate 110. Therefore, the unity between the top plate 110, the first side plate 112, and the second side plate 114 is not lost, and the aesthetics are not impaired.

  Next, a repair method using the repair member 10 for a structure according to the first embodiment of the present invention will be described based on FIG. 1 and FIGS.

The marking process in step S1 shown in FIG. 9 will be described.
FIG. 10 shows a marking member 160 necessary for drawing a marking line. The marking member 160 has a triangular pyramid shape with no bottom surface. The first face 161, the second face 162, and the third face 163 constituting the marking member 160 are right-angled isosceles triangular plate members that form 90 ° with each other. Each of the right-angled isosceles triangular plate materials constituting the scribing member 160 has the same size and thickness as the first face body 12 constituting the main body 60 of the repair member 10.

  In the same way as manufacturing the main body 60 of the repairing member 10, the marking member 160 assembles the first face 161, the second face 162, and the third face 163 with each side so as to be 90 ° to each other. It is manufactured by joining each side by welding from the inside.

The marking member 160 is attached to the corner of the staircase 100 as follows. The inner surface of the first face body 161 of the scribing member 160 and the top plate 110 contact in parallel, the inner surface of the second face body 162 and the first side face plate 112 contact in parallel, and the inner surface of the third face body 163. And the second side plate 114 are aligned so as to contact in parallel. FIG. 11 shows a state where the marking member 160 is attached to the corner of the staircase 100.
Here, along the contour of the marking member 160, the first marking line 166 is applied to the top plate 110 by the black magic, the second marking line 167 is applied to the first side plate 112, and the third marking line 168 is applied to the second side plate 114. Draw. FIG. 12 shows a state in which a marking line is drawn.
After drawing the marking line, the marking member 160 is removed from the corner of the staircase 100.

The slope formation process of step S2 is demonstrated based on FIG. 13 and FIG.
The top plate 110, the first side plate 112, and the second side plate 114 are cut with a sander along the marking line drawn in step S1. Thereby, the cross sections of the top plate 110, the first side plate 112, and the second side plate 114 are exposed. Furthermore, the corner 120 of the concrete block is exposed. This state is shown in FIG.

The exposed corner 120 of the concrete has a triangular pyramid appearance. The corner portion 120 has a corner portion of the staircase 100 as a vertex, and has triangular surfaces of the concrete grounds 131, 132, and 133 as side surfaces. The corner portion 120 has a virtual triangular bottom surface 130 having the sides 141, 142, and 143 of the base surfaces 131, 132, and 133 as three sides.
A cross section 135 of the top plate 110 is perpendicular to the base surface 131. A cross section 136 of the first side plate 112 is perpendicular to the base surface 132. A cross section 137 of the second side plate 114 is perpendicular to the base surface 133.

Thereafter, the corner 120 is scraped off with a chisel or chisel to expose the triangular bottom 130. A state in which the corner portion 120 is formed is shown in FIG. The bottom surface 130 has an angle of 45 ° with the top plate 110, the first side plate 112, and the second side plate 114.
A state in which the bottom surface 130 is formed is shown in FIG.

The joining hole opening process of step S3 is demonstrated based on FIG.
A joint hole 140 is opened perpendicularly to the bottom surface 130 by a concrete drill at the center of gravity of the bottom surface 130. The depth of the joining hole 140 is made longer than the length of the shaft 40. The diameter of the joining hole 140 is set to be about 1.5 to 2 times the diameter of the shaft 40.
The scraps of concrete or the like that appear when a hole is made with a vacuum cleaner or the like is sucked to clean the inside of the joint hole 140.

The adhesive application process in step S4 will be described.
An epoxy-based two-component adhesive 150 is applied to the cross section 135 of the top plate 110, the cross section 136 of the first side plate 112, and the cross section 137 of the second side plate 114. The bonding hole 140 is filled with the adhesive 150.

The repair member attachment process of step S5 is demonstrated based on FIG.
The shaft 40 of the repair member 10 is inserted into the joint hole 140, and the repair member 10 and the corner of the staircase 100 are joined. At this time, the first surface body 12 and the top plate 110 are in the same plane, the second surface body 14 and the first side surface plate 112 are in the same plane, and the third surface body 16 and the second side surface plate 116 are in the same plane. The repair member 10 is attached to the corner of the staircase 100 by aligning so that
The leaked adhesive 150 is scraped off with a spatula from the adhesive surface between the repair member 10 and the corner of the staircase 100 and wiped with a waste cloth.

The drying process in step S6 will be described.
It is left for about one day until the adhesive 150 is sufficiently dried and the repair member 10 and the corner of the staircase 100 are sufficiently bonded. The adhesive 150 shrinks after drying to form a concave joint.

The coking process in step S7 will be described.
Apply a caulking or sealing agent on the concave joint. A caulking agent or a sealing agent is selected that is close to the color of the top plate 110.
After top coating, leave the caulking agent and sealing agent to dry and cure.
In the above, the repair method of the structure using the repair member 10 which concerns on this embodiment was demonstrated.

The effect of the repair method using the repair member 10 of the structure which concerns on 1st embodiment of this invention is demonstrated.
The repair method using the repair member 10 is simpler than the work of attaching the top plate 110, and the repair member 10 is also low in cost, so that construction costs can be suppressed. Moreover, since the top plate 110 and the first face body 12 are on the same plane after the restoration, it is possible to prevent a person from scooping at a step.
When marking, the marking member 160 having the same size as the main body of the repair member 10 is used, and the top plate 110, the first side plate 112, and the second side plate 114 are accurately cut according to the size of the repair member 10. be able to.
Since the facets of the repair member and the surface of the staircase are on the same plane, the appearance of the appearance is good without human beings.

  When rainwater or the like enters between the repair member 10 and the corner of the staircase 100, the rainwater or the like deteriorates the adhesive 150, and the adhesive strength decreases. However, since the coated caulking agent or sealing agent prevents the entry of rainwater or the like, the adhesive 150 can be prevented from deteriorating. Further, the color of the joint portion is harmonized with the top plate 110, and a good aesthetic feeling is obtained.

(Second embodiment)
Next, the repair member of the structure which concerns on 2nd embodiment of this invention is demonstrated.
In the present embodiment, the shaft portion of the repair member is different from the first embodiment.
As shown in FIG. 17A, the shaft 240 included in the repair member of the present embodiment has a convex portion 242 surrounding the outer peripheral wall of the shaft 240 in a ring shape. A plurality of convex portions 242 are formed at intervals in the axial direction of the shaft. The convex part 242 is processed by a lathe or the like.
As shown in FIG. 17B, the shaft 340 provided in the repair member of the present embodiment has a rough surface 342 that is processed by sandblasting or the like on the outer wall and has numerous fine irregularities on the surface. The surface roughness of the rough surface 342 is larger than the surface roughness of the outer peripheral wall of the shaft 240 on which the rough surface is not formed. Alternatively, the rough surface 342 may be processed by a grinder, a sander, or the like.
The main body of the repair member and the shafts 240 and 340 are joined by welding similarly to the first embodiment.
The usage example of the repair member according to the present embodiment to the corner of the staircase is the same as in the first embodiment.

  When the repair member according to the present embodiment is used, the surface area of the shaft including the convex portion 242 and the rough surface 342 is larger than the surface area of the shaft of the first embodiment. Therefore, the contact area between the shafts 240 and 340 inserted into the joint hole 140 and the adhesive 150 increases, and the adhesive strength increases. Therefore, even if a large force is applied, it is difficult to remove the repair member from the corner of the staircase. Therefore, in addition to the effect when the repair member of the first embodiment is used, the corners of the stairs can be protected stably over a longer period.

(Third embodiment)
Next, the repair member of the structure which concerns on 3rd embodiment of this invention is demonstrated.
In this embodiment, the main body of the repair member is different from the first and second embodiments.
As shown to Fig.18 (a), as for the main body 260 of the repair member 210 of this embodiment, only the 1st face body 212 is a right-angled isosceles triangle. The second face 214 and the third face 216 are right triangles having the same shape.
As shown in FIG. 18B, the main body 360 of the repair member 310 of the present embodiment is a right triangle having different shapes of the first face body 312, the second face body 314, and the third face body 316.
The shafts according to the first and second embodiments are joined by welding similarly to the main bodies 260 and 360.

  When the repair members 210 and 310 according to this embodiment are used, it is possible to efficiently repair missing portions of the staircase 100 having various shapes. For example, when repairing the missing part 118 indicated by a dotted line in FIG. 19A, if the repair member 10 of the first and second embodiments is used, the top plate 110, the first side plate 112, and the second side plate It is necessary to cut 114 with the same area.

  On the other hand, when the repair member 210 is used instead of the repair member 10 of the first and second embodiments, the first face body 212, which is relatively larger than the other face bodies, repairs the top plate 110, The dihedral body 214 and the third lateral body 216 repair the first side surface plate 112 and the second side surface plate 114, respectively. At this time, as shown in FIG. 19 (b), the area where the first side plate 112 and the second side plate 114 are cut out is larger than when the repair member 10 of the first and second embodiments is used. Few. Therefore, in addition to the effect when the repair member according to the first and second embodiments is used, a better aesthetic feeling can be obtained.

(Fourth embodiment)
Next, the repair member of the structure which concerns on 4th embodiment of this invention is demonstrated.
In the present embodiment, the material of the repair member is made of a resin having high rigidity and toughness instead of metal. Polyacetal, polyamide, polyether ether ketone, polyether imide and the like are preferable resins.

Although the main body is formed by welding in the first, second, and third embodiments, it can be formed by a technique using an adhesive or a solvent instead. Alternatively, the main body and the shaft can be integrally molded by a resin molding method such as injection molding.
If the repair member which concerns on embodiment is used, in addition to the effect of 1st, 2nd, 3rd embodiment, while being low-cost, the effect that it is hard to plastically deform and rust prevention property is acquired.

(Other embodiments)
The repair member for a structure according to the present invention can be used for repairing corners of various structures such as concrete block fences in addition to the corners of stairs. The applicable material is not limited to concrete, and may be a corner of a structure formed of wood, brick, resin, or the like.
As mentioned above, this invention is not limited to the said embodiment, It can implement with a various form in the range which does not deviate from the summary.

10 210 310 Repair member 12 212 312 First face body 14 214 314 Second face body 16 Third face body 26 First shared side 28 Second shared side 30 Third shared side 32 First top portion,
40 240 340 Shaft, 44 Fixed end, 46 Free end, 60 Main body 100 Staircase, 110 Top plate, 112 First side plate, 114 Second side plate 110 Missing part, 130 bottom surface, 140 Joining hole, 150 Adhesive 160 Scribing member

Claims (10)

A repair member (10, 210, 310) of the structure,
A first face body (12, 212, 312) made of a right triangle plate, a second face body (14, 214, 314) made of a right triangle plate in contact with the first face body; A main body (60) having a first face body and a third face body (16, 216, 316) made of a right-angled triangular plate material perpendicularly contacting the second face body;
A shaft (40) having a fixed end (44) joined to the inner wall of the first top (32) shared by the first face, the second face and the third face and the other end being a free end (46). , 240, 340).   The repair member of a structure according to claim 1, wherein the first face body (12, 212) is a right-angled isosceles triangle.   The repair member for a structure according to claim 1, wherein the first face body (12), the second face body (14), and the third face body (16) are right-angled isosceles triangles.   The repair member for a structure according to any one of claims 1 to 3, wherein the first face body, the second face body, the third face body, and the shaft are made of metal.   The repair member for a structure according to any one of claims 1 to 3, wherein the first face body, the second face body, the third face body, and the shaft are resin.   The repair member for a structure according to any one of claims 1 to 5, wherein a joint portion between the first face body, the second face body, and the third face body has an outwardly convex shape.   The said shaft (240,340) is a repair member of the structure as described in any one of Claim 1 to 6 which has an area increase part which a surface area increases in at least one part of an outer peripheral wall.   The structure repair member according to claim 7, wherein the area increasing portion is a convex portion (242) surrounding the outer peripheral wall of the shaft in a ring shape.   The area increasing portion is a rough surface (342) formed on a part of the outer peripheral wall of the shaft, and the surface roughness of the rough surface is a surface roughness of the shaft in a portion where the rough surface is not formed. The repair member of the structure according to claim 7, wherein the repair member is larger than the height. A method for repairing a structure using the repair member for a structure according to any one of claims 1 to 9,
The top plate (110), the first side plate (112), and the second side plate (114) are shaved in accordance with the shape of the repair member of the structure to form a bottom surface (130) at the corner of the structure ( S2)
Opening a bonding hole (140) in the bottom surface (S3);
Applying an adhesive (150) to the bottom surface and the joining hole (S4);
The shaft of the repair member of the structure is inserted into the joint hole, the first face body and the top plate (110) are in the same plane, and the second face body and the first side plate (112) are in the same plane. And (3) attaching the repair member of the structure by aligning the third face body and the second side plate (114) of the structure so as to be in the same plane.

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