JP2019027035A - Jig for repairing crack and method for repairing crack - Google Patents

Jig for repairing crack and method for repairing crack Download PDF

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JP2019027035A
JP2019027035A JP2017144106A JP2017144106A JP2019027035A JP 2019027035 A JP2019027035 A JP 2019027035A JP 2017144106 A JP2017144106 A JP 2017144106A JP 2017144106 A JP2017144106 A JP 2017144106A JP 2019027035 A JP2019027035 A JP 2019027035A
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crack
contact
jig
repairing
drill
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JP6989941B2 (en
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卓明 金田
Takaaki Kaneda
卓明 金田
直記 外山
Naoki Toyama
直記 外山
謙吾 石井
Kengo Ishii
謙吾 石井
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Hinode Ltd
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Abstract

To provide a jig for repairing crack which is effective for a crack generated in a steel structure or the like and a method for repairing crack.SOLUTION: A crack repairing jig 10 used for inserting a repairing member 20 in a direction crossing a crack 32 generated in a metallic corner part 31 of a structure 30 includes: a pair of contact surfaces 11a and 11b respectively contacting two surfaces 31b and 31c sandwiching a top part 31a of the metallic corner part 31; a separation surface 12 which connects the pair of contact surfaces 11a and 11b to each other and is spaced apart from the top part 31a in a contact state in which the pair of contact surfaces are brought into contact with the two surfaces 31b and 31c respectively; and at least one drill guide hole 13 for guiding a drill in order to form an opening part 33 for inserting the repair member 20 into the metallic corner part 31 in a contact state by the drill.SELECTED DRAWING: Figure 2

Description

本発明は、構造物の金属製コーナー部に発生した亀裂を補修する際に用いる亀裂補修用治具およびこの亀裂補修用治具を用いる亀裂補修方法に関する。   The present invention relates to a crack repairing jig used when repairing a crack generated in a metal corner portion of a structure, and a crack repairing method using the crack repairing jig.

特許文献１には、鋼構造物を構成する板材に発生した疲労亀裂に対してストップホールを形成し、スプライスプレートを用いる補修工法が開示されている。   Patent Document 1 discloses a repair method using a splice plate in which a stop hole is formed for a fatigue crack generated in a plate material constituting a steel structure.

特開２００４−１７６２５４号公報JP 2004-176254 A

本発明は、鋼構造物等に発生した亀裂に対して有効な亀裂補修用治具および亀裂補修方法を提供する。   The present invention provides a crack repairing jig and a crack repairing method that are effective for cracks occurring in steel structures and the like.

本発明の一態様は、構造物の金属製コーナー部に発生した亀裂に対して交差する方向に補修部材を挿入するために用いられる亀裂補修用治具である。
この亀裂補修用治具は、金属製コーナー部の頂部を挟む２面に各々接触する一組の接触面と、一組の接触面を繋ぐとともに一組の接触面を２面に各々接触させた接触状態で頂部に対して離隔して配置される離隔面と、接触状態で金属製コーナー部に補修部材を挿入する開口部をドリルにより形成するためにドリルをガイドする少なくとも１つのドリルガイド孔とを有する。 One aspect of the present invention is a crack repair jig used for inserting a repair member in a direction intersecting a crack generated in a metal corner portion of a structure.
This jig for repairing a crack connects a pair of contact surfaces, which are in contact with two surfaces sandwiching the top of the metal corner portion, and a set of contact surfaces, and a pair of contact surfaces are in contact with the two surfaces, respectively. A spacing surface spaced apart from the top in contact, and at least one drill guide hole for guiding the drill to form an opening through which the repair member is inserted into the metal corner in contact. Have

この亀裂補修用治具を用いることにより、金属製コーナー部の頂部と干渉することなく、金属製コーナー部の頂部を挟む２面に亀裂補修用治具の一組の接触面が各々接触し、安定した状態で開口部をドリルにより形成するので、金属製コーナー部に補修部材を挿入するための開口部を簡単かつ正確に形成することができる。   By using this crack repairing jig, a pair of contact surfaces of the crack repairing jig are in contact with the two surfaces sandwiching the top of the metal corner without interfering with the top of the metal corner, Since the opening is formed by a drill in a stable state, the opening for inserting the repair member into the metal corner can be easily and accurately formed.

この亀裂補修用治具において少なくとも１つのドリルガイド孔は、一組の接触面の少なくとも一つを貫通するドリルガイド孔とすることができる。これにより、亀裂補修用治具を大きくすることなく、補修部材を挿入するための開口部を大きく形成できるため、大きな補修部材によって亀裂補修の強度を高めることができる。   In this crack repairing jig, the at least one drill guide hole may be a drill guide hole penetrating at least one of the set of contact surfaces. Thereby, since the opening part for inserting a repair member can be largely formed, without enlarging a crack repair jig | tool, the intensity | strength of crack repair can be improved with a large repair member.

この亀裂補修用治具において一組の接触面が成す内角角度は１８０度未満であってもよい。この場合、離隔面を簡易な形状にすることができ、亀裂補修用治具の製造コストの低減につながる。   In this crack repairing jig, the internal angle formed by the pair of contact surfaces may be less than 180 degrees. In this case, the separation surface can be made into a simple shape, which leads to a reduction in manufacturing cost of the crack repair jig.

この亀裂補修用治具において一組の接触面の各々は平面とすることができる。これにより、一組の接触面の加工が容易となり、亀裂補修用治具の製造コストの低減につながる。   In this crack repairing jig, each of the set of contact surfaces can be a flat surface. This facilitates processing of a set of contact surfaces, leading to a reduction in the manufacturing cost of the crack repair jig.

本発明の他の態様は、亀裂補修用治具を用いて構造物の金属製コーナー部に発生した亀裂に対して交差する方向に補修部材を挿入する亀裂補修方法である。
亀裂補修用治具は、金属製コーナー部の頂部を挟む２面に各々接触する一組の接触面と、一組の接触面を繋ぐとともに一組の接触面を２面に各々接触させた接触状態で頂部に対して離隔して配置される離隔面と、接触状態で金属製コーナー部に補修部材を挿入する開口部をドリルにより形成するためにドリルをガイドする少なくとも１つのドリルガイド孔とを含み、
当該亀裂補修方法は、一組の接触面が２面に各々接触するように亀裂補修用治具を設置する工程と、設置する工程の後に、少なくとも１つのドリルガイド孔を介してドリルにより開口部を形成する工程とを含む。 Another aspect of the present invention is a crack repair method in which a repair member is inserted in a direction intersecting with a crack generated in a metal corner portion of a structure using a crack repair jig.
The jig for repairing a crack connects a pair of contact surfaces that are in contact with the two surfaces sandwiching the top of the metal corner portion, and a contact that connects the pair of contact surfaces and makes the pair of contact surfaces contact each other. A separation surface that is spaced apart from the top in the state, and at least one drill guide hole that guides the drill to form an opening through which the repair member is inserted into the metal corner in the contact state. Including
The crack repairing method includes a step of installing a crack repairing jig so that a set of contact surfaces are in contact with two surfaces, and an opening portion by drilling through at least one drill guide hole after the step of installing Forming the step.

この亀裂補修方法では、金属製コーナー部の頂部と干渉することなく、金属製コーナー部の頂部を挟む２面に亀裂補修用治具の一組の接触面が各々接触し、安定した状態で開口部をドリルにより形成するので、金属製コーナー部に補修部材を挿入するための開口部を簡単かつ正確に形成することができる。   In this crack repair method, a pair of contact surfaces of the crack repair jig are in contact with the two surfaces sandwiching the top of the metal corner portion without interfering with the top of the metal corner portion, and the opening is made in a stable state. Since the portion is formed by a drill, an opening for inserting the repair member into the metal corner can be easily and accurately formed.

この亀裂補修方法において亀裂は頂部の延びる方向に沿っていてもよい。この場合、亀裂に対して交差する方向に補修部材を挿入するために金属製コーナー部の頂部を挟む２面に対してドリルの先端を斜めにあてて削孔する必要が生じるが、ドリルガイド孔によってドリルの先端が逃げないようにガイドされるため、金属製コーナー部に補修部材を挿入するための開口部を正確に形成することができる。   In this crack repairing method, the crack may be along the direction in which the top portion extends. In this case, in order to insert the repair member in a direction intersecting with the crack, it is necessary to drill the tip of the drill obliquely with respect to the two surfaces sandwiching the top of the metal corner portion. Since the tip of the drill is guided so as not to escape, an opening for inserting the repair member into the metal corner can be accurately formed.

この亀裂補修方法において２面が頂部を挟む角度は１８０度未満であってもよい。この場合、離隔面を簡易な形状にすることができ、亀裂補修用治具の製造コストの低減につながる。   In this crack repairing method, the angle between the two surfaces sandwiching the top may be less than 180 degrees. In this case, the separation surface can be made into a simple shape, which leads to a reduction in manufacturing cost of the crack repair jig.

本発明によれば、構造物の金属製コーナー部に発生した亀裂の補修に有効な亀裂補修用治具および亀裂補修方法を提供できる。   According to the present invention, it is possible to provide a crack repairing jig and a crack repairing method that are effective for repairing a crack generated in a metal corner portion of a structure.

本発明の一実施形態である亀裂補修用治具を示す図。The figure which shows the jig | tool for crack repair which is one Embodiment of this invention. 図１の亀裂補修用治具を用いた亀裂補修方法を示す図。The figure which shows the crack repairing method using the jig for crack repairing of FIG. 図２の亀裂補修方法で用いる補修部材を示す図。The figure which shows the repair member used with the crack repairing method of FIG. 本発明の他の実施形態である亀裂補修用治具を用いた亀裂補修方法を示す図。The figure which shows the crack repair method using the jig for crack repair which is other embodiment of this invention. 図１の亀裂補修用治具を金属製コーナー部に設置した状態を概念的に示す図。The figure which shows notionally the state which installed the jig for crack repair of FIG. 1 in metal corner parts. 本発明の他の実施形態である亀裂補修用治具を金属製コーナー部に設置した状態を概念的に示す図。The figure which shows notionally the state which installed the jig for crack repair which is other embodiment of this invention in metal corner parts.

図１に本発明の一実施形態である亀裂補修用治具１０を示している。また、図２にはこの亀裂補修用治具１０を用いた亀裂補修方法を示し、図３には図２の亀裂補修方法で用いる補修部材２０を示している。さらに、図５にはこの亀裂補修用治具１０を金属製コーナー部３１に設置した状態を概念的に示している。   FIG. 1 shows a crack repairing jig 10 according to an embodiment of the present invention. 2 shows a crack repairing method using the crack repairing jig 10, and FIG. 3 shows a repairing member 20 used in the crack repairing method of FIG. Further, FIG. 5 conceptually shows a state where the crack repairing jig 10 is installed in the metal corner portion 31.

この実施形態において、この亀裂補修用治具１０は、図２に示しているように構造物３０の金属製コーナー部３１に発生した亀裂３２に対して交差する方向に補修部材２０を挿入するために用いられるもので、金属製コーナー部３１の頂部３１ａを挟む２面３１ｂ，３１ｃに各々接触する一組の接触面１１ａ，１１ｂと、一組の接触面１１ａ，１１ｂを繋ぐとともに一組の接触面１１ａ，１１ｂを２面３１ｂ，３１ｃに各々接触させた接触状態で頂部３１ａに対して離隔して配置される離隔面１２と、この接触状態で金属製コーナー部３１に補修部材２０を挿入する開口部３３をドリル（図示省略）により形成するためにそのドリルをガイドするドリルガイド孔１３を一直線状に５つ有している。   In this embodiment, the crack repairing jig 10 inserts the repairing member 20 in a direction intersecting with the crack 32 generated in the metal corner portion 31 of the structure 30 as shown in FIG. A pair of contact surfaces 11a and 11b that are in contact with the two surfaces 31b and 31c sandwiching the top 31a of the metal corner 31 and the set of contact surfaces 11a and 11b and a set of contacts. In the contact state where the surfaces 11a and 11b are in contact with the two surfaces 31b and 31c, respectively, the separation surface 12 which is spaced apart from the top portion 31a and the repair member 20 is inserted into the metal corner portion 31 in this contact state. In order to form the opening 33 by a drill (not shown), five drill guide holes 13 for guiding the drill are provided in a straight line.

この実施形態において、金属製コーナー部３１の２面３１ｂ，３１ｃが頂部３１ａを挟む角度は１１０度であり、これに合わせて亀裂補修用治具１０の一組の接触面１１ａ，１１ｂが成す内角角度θ（図５参照）も１１０度である。また、この実施形態において、金属製コーナー部３１の２面３１ｂ，３１ｃの各々は平面であり、これに合わせて亀裂補修用治具１０の一組の接触面１１ａ，１１ｂの各々も平面である。これにより、亀裂補修用治具１０の一組の接触面１１ａ，１１ｂは、金属製コーナー部３１の２面３１ｂ，３１ｃに各々面接触可能となっている。なお、金属製コーナー部３１の２面３１ｂ，３１ｃが曲面の場合、それに合わせて亀裂補修用治具１０の一組の接触面１１ａ，１１ｂも曲面にすることで、これらを面接触させることもできる。   In this embodiment, the angle at which the two surfaces 31b and 31c of the metal corner portion 31 sandwich the top portion 31a is 110 degrees, and the inner angle formed by the pair of contact surfaces 11a and 11b of the crack repairing jig 10 according to this angle. The angle θ (see FIG. 5) is also 110 degrees. Further, in this embodiment, each of the two surfaces 31b and 31c of the metal corner portion 31 is a flat surface, and each of the pair of contact surfaces 11a and 11b of the crack repairing jig 10 is also a flat surface in accordance with this. . Accordingly, the pair of contact surfaces 11 a and 11 b of the crack repairing jig 10 can be brought into surface contact with the two surfaces 31 b and 31 c of the metal corner portion 31. In addition, when the two surfaces 31b and 31c of the metal corner portion 31 are curved surfaces, the contact surfaces 11a and 11b of the pair of crack repairing jigs 10 may be curved to make them contact with each other. it can.

図１に明確に表れているように、この亀裂補修用治具１０において５つのドリルガイド孔１３は一直線状に連続的に配列されており、これら５つのドリルガイド孔１３のうち両端の２つのドリルガイド孔１３は、各々一組の接触面１１ａ，１１ｂを貫通している。   As clearly shown in FIG. 1, in this crack repairing jig 10, five drill guide holes 13 are continuously arranged in a straight line, and two of these five drill guide holes 13 are arranged at two ends. Each of the drill guide holes 13 passes through a pair of contact surfaces 11a and 11b.

次に、この亀裂補修用治具１０を用いた亀裂補修方法について説明する。   Next, a crack repairing method using the crack repairing jig 10 will be described.

まず、図２（ａ）に示しているように、亀裂補修用治具１０の一組の接触面１１ａ，１１ｂが金属製コーナー部３１の２面３１ｂ，３１ｃに各々接触するように亀裂補修用治具１０を設置する。この実施形態において亀裂３２は金属製コーナー部３１の頂部３１ａの延びる方向に沿っているので、亀裂補修用治具１０はこの亀裂３２に対して交差する方向に５つのドリルガイド孔１３が並ぶように設置する。このように亀裂補修用治具１０の一組の接触面１１ａ，１１ｂを金属製コーナー部３１の２面３１ｂ，３１ｃに各々接触させた接触状態では、図５に明確に表れているように、一組の接触面１１ａ，１１ｂを繋ぐ離隔面１２は金属製コーナー部３１の頂部３１ａに対して離隔して配置され、金属製コーナー部３１の頂部３１ａと干渉することはない。   First, as shown in FIG. 2A, for repairing a crack, the pair of contact surfaces 11a and 11b of the crack repairing jig 10 are in contact with the two surfaces 31b and 31c of the metal corner portion 31, respectively. The jig 10 is installed. In this embodiment, since the crack 32 is along the direction in which the top portion 31 a of the metal corner portion 31 extends, the crack repairing jig 10 has five drill guide holes 13 arranged in a direction intersecting the crack 32. Install in. Thus, in the contact state in which the pair of contact surfaces 11a and 11b of the crack repairing jig 10 are in contact with the two surfaces 31b and 31c of the metal corner portion 31, as clearly shown in FIG. The separation surface 12 that connects the pair of contact surfaces 11 a and 11 b is disposed away from the top portion 31 a of the metal corner portion 31 and does not interfere with the top portion 31 a of the metal corner portion 31.

続いてこの接触状態を維持しつつ、５つのドリルガイド孔１３を介してドリル（図示省略）により開口部３３（図２（ｂ）参照）を形成し、この開口部３３に補修部材２０を挿入する（図２（ｃ）参照）。これにより、金属製コーナー部３１に発生した亀裂３２に対して交差する方向に補修部材２０が挿入される。その後、必要に応じて補修部材２０の基端側を金属製コーナー部３１に沿うように研削して除去する（図２（ｄ）参照）。   Subsequently, while maintaining this contact state, an opening 33 (see FIG. 2B) is formed by a drill (not shown) through the five drill guide holes 13, and the repair member 20 is inserted into the opening 33. (See FIG. 2C). Thereby, the repair member 20 is inserted in a direction intersecting with the crack 32 generated in the metal corner portion 31. Then, if necessary, the base end side of the repair member 20 is ground and removed along the metal corner portion 31 (see FIG. 2D).

なお、この実施形態において補修部材２０は図３に示すように両端が短く、中央に向けて徐々に長くなり尖った形状を有しているが、これに限定されるものではなく、中央を尖らせないようにしたり、全て同じ長さであってもよい。   In this embodiment, as shown in FIG. 3, the repair member 20 is short at both ends and gradually has a sharp shape toward the center. However, the present invention is not limited to this, and the center is sharpened. Or they may all be the same length.

このように亀裂補修用治具１０を用いることにより、金属製コーナー部３１の頂部３１ａと干渉することなく、金属製コーナー部３１の頂部３１ａを挟む２面３１ｂ，３１ｃに亀裂補修用治具１０の一組の接触面１１ａ，１１ｂが各々接触し、安定した状態で開口部３３をドリルにより形成するので、金属製コーナー部３１に補修部材２０を挿入するための開口部３３を簡単かつ正確に形成することができる。   By using the crack repairing jig 10 in this way, the crack repairing jig 10 is formed on the two surfaces 31b and 31c sandwiching the top 31a of the metal corner 31 without interfering with the top 31a of the metal corner 31. Since a pair of contact surfaces 11a and 11b are in contact with each other and the opening 33 is formed by a drill in a stable state, the opening 33 for inserting the repair member 20 into the metal corner portion 31 can be easily and accurately formed. Can be formed.

また、この実施形態において亀裂３２は頂部３１ａの延びる方向に沿っており、この場合、亀裂３２に対して交差する方向に補修部材２０を挿入するために金属製コーナー部３１の頂部３１ａを挟む２面３１ｂ，３１ｃに対してドリルの先端を斜めにあてて削孔する必要が生じるが、ドリルガイド孔１３によってドリルの先端が逃げないようにガイドされるため、金属製コーナー部３１に補修部材２０を挿入するための開口部３３を正確に形成することができる。   Further, in this embodiment, the crack 32 is along the direction in which the top portion 31 a extends, and in this case, the top portion 31 a of the metal corner portion 31 is sandwiched 2 in order to insert the repair member 20 in a direction intersecting the crack 32. It is necessary to drill the tip of the drill at an angle with respect to the surfaces 31b and 31c. However, since the tip of the drill is guided by the drill guide hole 13 so as not to escape, the repair member 20 is attached to the metal corner portion 31. The opening 33 for inserting can be accurately formed.

なお、亀裂３２は、図４に示しているように頂部３１ａの延びる方向と交差する方向であってもよい。この場合においても亀裂補修用治具１０のドリルガイド孔１３は亀裂３２に対して交差する方向に配置される。   Note that the crack 32 may be in a direction intersecting with the direction in which the apex 31a extends as shown in FIG. Even in this case, the drill guide hole 13 of the crack repairing jig 10 is arranged in a direction intersecting the crack 32.

また、この実施形態の亀裂補修用治具１０において両端の２つのドリルガイド孔１３は、各々一組の接触面１１ａ，１１ｂを貫通するドリルガイド孔としているので、亀裂補修用治具１０を大きくすることなく、補修部材２０を挿入するための開口部３３を大きく形成できるため、大きな補修部材２０によって亀裂補修の強度を高めることができる。   Further, in the crack repairing jig 10 of this embodiment, the two drill guide holes 13 at both ends are respectively drill guide holes penetrating the pair of contact surfaces 11a and 11b, so that the crack repairing jig 10 is made larger. Without doing so, the opening 33 for inserting the repair member 20 can be formed large, so that the strength of crack repair can be increased by the large repair member 20.

また、この実施形態の亀裂補修用治具１０において一組の接触面１１ａ，１１ｂの各々は平面としているので、一組の接触面１１ａ，１１ｂの加工が容易となり、亀裂補修用治具１０の製造コストの低減につながる。   In addition, since each of the pair of contact surfaces 11a and 11b is flat in the crack repairing jig 10 of this embodiment, the processing of the pair of contact surfaces 11a and 11b is facilitated, and the crack repairing jig 10 This leads to a reduction in manufacturing costs.

また、この実施形態の亀裂補修用治具１０において一組の接触面１１ａ，１１ｂが成す内角角度θは１８０度未満であるので、図５に示しているように離隔面１２を簡易な形状にすることができ、亀裂補修用治具１０の製造コストの低減につながる。   Further, in the crack repairing jig 10 of this embodiment, since the inner angle θ formed by the pair of contact surfaces 11a and 11b is less than 180 degrees, the separation surface 12 is formed in a simple shape as shown in FIG. This leads to a reduction in the manufacturing cost of the crack repairing jig 10.

なお、金属製コーナー部３１の２面３１ｂ，３１ｃが頂部３１ａを挟む角度、および一組の接触面１１ａ，１１ｂが成す内角角度θは１８０度超であってもよい。だたしこの場合、例えば図６に示しているように離隔面１２は凹形状になり、図５に示している離隔面１２に比べ複雑な形状になる。   Note that the angle between the two surfaces 31b and 31c of the metal corner 31 and the top 31a and the inner angle θ formed by the pair of contact surfaces 11a and 11b may be greater than 180 degrees. However, in this case, for example, as shown in FIG. 6, the separation surface 12 has a concave shape, which is more complicated than the separation surface 12 shown in FIG. 5.

以上の実施形態では５つのドリルガイド孔１３を一直線状に連続的に配列したが、ドリルガイド孔１３の個数、大きさ、配列、一組の接触面１１ａ，１１ｂの少なくとも一つを貫通するか否かは、形成すべき開口部３３の形状に合わせて適宜変更される。   In the above embodiment, the five drill guide holes 13 are continuously arranged in a straight line, but the number, size, arrangement of the drill guide holes 13, and at least one of the pair of contact surfaces 11a and 11b are penetrated. Whether or not is appropriately changed according to the shape of the opening 33 to be formed.

１０ 亀裂補修用治具
１１ａ，１１ｂ 一組の接触面
１２ 離隔面
１３ ドリルガイド孔
２０ 補修部材
３０ 構造物
３１ 金属製コーナー部
３１ａ 金属製コーナー部の頂部
３１ｂ，３１ｃ 金属製コーナー部の２面
３２ 亀裂
３３ 開口部 DESCRIPTION OF SYMBOLS 10 Crack repair jig | tool 11a, 11b A set of contact surface 12 Separation surface 13 Drill guide hole 20 Repair member 30 Structure 31 Metal corner part 31a Top part of metal corner part 31b, 31c Two surfaces of metal corner part 32 Crack 33 opening

Claims (7)

構造物の金属製コーナー部に発生した亀裂に対して交差する方向に補修部材を挿入するために用いられる亀裂補修用治具であって、
前記金属製コーナー部の頂部を挟む２面に各々接触する一組の接触面と、
前記一組の接触面を繋ぐとともに前記一組の接触面を前記２面に各々接触させた接触状態で前記頂部に対して離隔して配置される離隔面と、
前記接触状態で前記金属製コーナー部に前記補修部材を挿入する開口部をドリルにより形成するために前記ドリルをガイドする少なくとも１つのドリルガイド孔とを含む、亀裂補修用治具。 A crack repairing jig used for inserting a repairing member in a direction intersecting with a crack generated in a metal corner of a structure,
A set of contact surfaces that respectively contact two surfaces sandwiching the top of the metal corner portion;
Separating surfaces that are spaced apart from the top in a contact state connecting the set of contact surfaces and contacting the set of contact surfaces with the two surfaces, respectively.
A crack repairing jig including at least one drill guide hole for guiding the drill in order to form an opening for inserting the repair member in the metal corner portion in the contact state by a drill. 前記少なくとも１つのドリルガイド孔は、前記一組の接触面の少なくとも一つを貫通するドリルガイド孔を含む、請求項１に記載の亀裂補修用治具。   The crack repair jig according to claim 1, wherein the at least one drill guide hole includes a drill guide hole penetrating at least one of the set of contact surfaces. 前記一組の接触面が成す内角角度は１８０度未満である、請求項１または２に記載の亀裂補修用治具。   The crack repairing jig according to claim 1 or 2, wherein an inner angle formed by the pair of contact surfaces is less than 180 degrees. 前記一組の接触面の各々は平面である、請求項１〜３のいずれか一項に記載の亀裂補修用治具。   The crack repairing jig according to any one of claims 1 to 3, wherein each of the set of contact surfaces is a flat surface. 亀裂補修用治具を用いて構造物の金属製コーナー部に発生した亀裂に対して交差する方向に補修部材を挿入する亀裂補修方法であって、
前記亀裂補修用治具は、
前記金属製コーナー部の頂部を挟む２面に各々接触する一組の接触面と、
前記一組の接触面を繋ぐとともに前記一組の接触面を前記２面に各々接触させた接触状態で前記頂部に対して離隔して配置される離隔面と、
前記接触状態で前記金属製コーナー部に前記補修部材を挿入する開口部をドリルにより形成するために前記ドリルをガイドする少なくとも１つのドリルガイド孔とを含み、
当該亀裂補修方法は、
前記一組の接触面が前記２面に各々接触するように前記亀裂補修用治具を設置する工程と、
前記設置する工程の後に、前記少なくとも１つのドリルガイド孔を介して前記ドリルにより前記開口部を形成する工程と、
を含む亀裂補修方法。 A crack repairing method for inserting a repair member in a direction intersecting with a crack generated in a metal corner of a structure using a crack repairing jig,
The crack repair jig is
A set of contact surfaces that respectively contact two surfaces sandwiching the top of the metal corner portion;
Separating surfaces that are spaced apart from the top in a contact state connecting the set of contact surfaces and contacting the set of contact surfaces with the two surfaces, respectively.
Including at least one drill guide hole for guiding the drill to form an opening for inserting the repair member in the metal corner portion in the contact state by a drill;
The crack repair method is
Installing the crack repairing jig so that the set of contact surfaces are in contact with the two surfaces, respectively;
After the installing step, forming the opening by the drill through the at least one drill guide hole;
Including crack repair method. 前記亀裂は前記頂部の延びる方向に沿っている、請求項５に記載の亀裂補修方法。   The crack repair method according to claim 5, wherein the crack is along a direction in which the top portion extends. 前記２面が前記頂部を挟む角度は１８０度未満である、請求項５または６に記載の亀裂補修方法。   The crack repairing method according to claim 5 or 6, wherein an angle between the two surfaces sandwiching the top is less than 180 degrees.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247973A (en) * 1979-06-25 1981-02-03 Seal Lock International, Inc. Method and apparatus for repairing cracked metal parts
KR20080008003A (en) * 2006-07-19 2008-01-23 주식회사 엘앤에스메탈 Metal lock for repairing cracks
JP2016199846A (en) * 2015-04-07 2016-12-01 株式会社Ihi Method and structure for crack development suppression

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247973A (en) * 1979-06-25 1981-02-03 Seal Lock International, Inc. Method and apparatus for repairing cracked metal parts
KR20080008003A (en) * 2006-07-19 2008-01-23 주식회사 엘앤에스메탈 Metal lock for repairing cracks
JP2016199846A (en) * 2015-04-07 2016-12-01 株式会社Ihi Method and structure for crack development suppression

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