JP2014152497A - Reinforcement structure of structural member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcement structure of a structural member, reinforcing a structural member by using adhesive agent and a reinforcement member, having simple constitution, and improved in strength than ever without increasing man hour of a reinforcement work.SOLUTION: A reinforcement structure 1 of a structural member includes: a structural member 3; a reinforcement member 5 provided in the structural member; and adhesive agent 7 bonding the structural member and the reinforcement member. The strength of the adhesive agent in at least a portion of a part of an end 9 of the adhesive agent to which the reinforcement member is bonded, is lower than the strength of the adhesive agent in other portions 11 of the adhesive agent to which the reinforcement member is bonded.

Description

  The present invention relates to a reinforcing structure for a structural member, and more particularly to a structure for reinforcing a structural member using an adhesive.

  Conventionally, as shown in FIG. 14 and FIG. 15, in a case where structural members 301 such as building columns and beams are reinforced to improve seismic resistance (in the case of increasing proof stress), in an environment where welding is not preferable. The reinforcing member 305 is fixed to the structural member 301 using an adhesive 303.

In this structure, the external force (eg, the tensile force in the longitudinal direction indicated by the arrow F ₁₀ in FIG. 14) in the reinforcing member reinforced structural member 305 (reinforced structural member) 301 when the applied adhesive 303 The end portion 307 of this is destroyed first. Note that the yield strength of the structural member 301 reinforced by the reinforcing member 305 is determined by the breakage of the end portion 307.

The reason why the end portion 307 of the adhesive 303 breaks first is that the tensile force F ₁₀ applied to the reinforced structural member 301 is not applied to both the reinforcing member 305 and the structural member 301, but only to the structural member 301. Because it can be added. Then, by applying a pulling force F ₁₀ only to the structural member 301 of the reinforced structural member 301, together with the shear strain is generated in the adhesive 303 which bonds the reinforcing member 305 and the structural member 301, the magnitude of shear strain This is because the length varies depending on the part of the adhesive 303.

With further described, in the vicinity of the end portion 307 of the adhesive 303, occurs shear strain gamma _a, as shown in FIG. 16 (a), the shear stress tau _a is generated in accordance with the shear strain gamma _a. On the other hand, in the central part of the adhesive 303, it occurs shear strain gamma _b as shown in FIG. 16 (b), the shear stress tau _b is generated in accordance with the shear strain gamma _b. Then, since shear strain γ _b <shear strain γ _a and shear stress τ _b <shear stress τ _a , the end portion 307 of the adhesive 303 is broken first.

  A bolt (not shown) may be used in combination in order to prevent the end portion 307 of the adhesive 303 described above from being broken first and to improve the proof stress of the reinforced structural member 301. This bolt fastens the reinforcing member 305 and the structural member 301 in the vicinity of the end portion 307 of the adhesive 303.

  In addition, as a literature relevant to a prior art, a nonpatent literature 1-a nonpatent literature 3 can be mention | raise | lifted, for example.

Structural Engineering Vol. 57A (March 2011) Japan Society of Civil Engineers pp. 747-755 “Performance Recovery by Adhesion of Corroded Steel Sheet” Japan Society of Civil Engineers 67th Annual Scientific Lecture (September 2012) pp. 217 to 218 “Mechanical Behavior of Corroded Steel Plates Reinforced with Plates under Repeated Loading” Steel Structure Annual Papers, Vol. 17 (November 2009) Pages 637-642 “Quantitative Understanding of Performance Recovery Effect in Repairing Corrosive Steel Adhesives”

  However, as described above, the method using the bolts together has a problem that the structure for reinforcing the structural member becomes complicated and the number of steps for reinforcing the structural member increases. In an environment in which welding is not preferable, it is desirable to avoid holes that allow the bolts to pass through the structural member 301 or machining a female screw in which the male screw portion is screwed into the structural member 301 as much as possible.

  The present invention has been made in view of the above problems, and in the reinforcing structure of a structural member that reinforces the structural member using an adhesive and a reinforcing member, the configuration is simple, and the number of man-hours for reinforcement work increases. There is no object, and it aims at providing what has proof stress improved rather than the conventional one.

  The invention according to claim 1 includes a structural member, a reinforcing member provided on the structural member, and an adhesive that joins the structural member and the reinforcing member to reinforce the structural member. And the rigidity of at least a part of the end of the adhesive and the reinforcing member that is joined, and the rigidity of at least one of the adhesive and the reinforcing member is the joined It is the reinforcement structure of the structural member which is lower than the rigidity of the reinforcement member and the other part of the adhesive.

  According to a second aspect of the present invention, in the reinforcing structure of the structural member according to the first aspect, the elasticity of the adhesive in at least a part of the end portion of the reinforcing member and the adhesive that are joined. It is a reinforcing structure of a structural member whose coefficient is smaller than the elastic modulus of the reinforcing member to which the joining is performed and the adhesive of another part of the adhesive.

  According to a third aspect of the present invention, in the reinforcing structure for a structural member according to the first or second aspect, the adhesion that joins at least a part of the end of the reinforcing member and the structural member. It is a reinforcing structure of a structural member in which the thickness of the agent is thicker than the thickness of the adhesive that joins the other part of the reinforcing member and the structural member.

  According to a fourth aspect of the present invention, in the reinforcing structure for a structural member according to any one of the first to third aspects, the thickness of the reinforcing member in at least a part of the end of the reinforcing member. However, the reinforcing structure of the structural member is thinner than other portions of the reinforcing member.

  According to the present invention, in the reinforcing structure of the structural member that reinforces the structural member using the adhesive and the reinforcing member, the configuration is simple, the number of reinforcement work is not increased, and the proof stress is higher than that of the conventional one. There is an effect that an improved one can be provided.

It is a perspective view which shows the outline | summary of the reinforcement structure of the structural member which concerns on embodiment of this invention. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on embodiment of this invention. It is the III arrow directional view in FIG. It is a figure which shows the relationship between the shear strain and the shear stress in the adhesive agent of the reinforcement structure of the structural member which concerns on embodiment of this invention. It is a figure which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification, Comprising: It is a figure corresponding to FIG. It is a figure which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification, Comprising: It is a figure corresponding to FIG. It is a VII arrow line view in FIG. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification. It is a front view which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification. It is a figure which shows the outline | summary of the reinforcement structure of the structural member which concerns on a modification, Comprising: It is a figure corresponding to FIG. It is a figure which shows the reinforcement structure of the conventional structural member. It is an enlarged view of the XV part in FIG. (A) is the figure which showed typically the deformation | transformation aspect of the adhesive agent in the XVIA part of FIG. 15, (b) is the figure which showed typically the deformation | transformation aspect of the adhesive agent in the XVIB part of FIG. is there.

  A structural member reinforcing structure (reinforced structural member) 1 according to an embodiment of the present invention includes a structural member 3, a reinforcing member 5, and an adhesive (cured adhesive) 7, as shown in FIGS. It is prepared for.

  The structural member 3 is a structural member such as a pillar or a beam, and is used as a building such as a house or an office building, or a structure such as a bridge.

  The reinforcing member 5 is provided on the structural member 3 so as to cover a part of the surface of the structural member 3.

  The adhesive 7 is provided in the form of a thin film between the structural member 3 and the reinforcing member 5 in order to reinforce the structural member 3, and the structural member 3 and the reinforcing member 5 are bonded and integrally joined ( Are combined).

  In at least a part of the end portion of the adhesive 7 that is joined (fixed), the rigidity of the adhesive 7 is lower (smaller) than the rigidity of other parts other than the part. Yes. For example, at the end 9 of the adhesive 7 that is bonded, the rigidity of the adhesive 7 is lower than the rigidity of the reinforcing member 5 and the other part 11 of the adhesive 7 that are bonded. . That is, when an external force is applied to the structural member 3, the portion from the end portion 9 of the adhesive 7 joining the reinforcing member 5 to the vicinity thereof is another portion (for example, the central portion or the intermediate portion of the adhesive 7) 11. It becomes easier to elastically deform than.

  To explain further, by changing the type of the adhesive 7A used from the end 9 to the vicinity thereof to the type of the adhesive 7B used for another part (intermediate part or the like) 11, the end portion The elastic modulus of the adhesive 7A in 9 is made smaller (lower) than the elastic coefficient of the adhesive 7B in the other region 11 to give the above-described rigidity difference.

  The structural member reinforcement structure 1 will be described in more detail with specific examples. For convenience of explanation, a predetermined one direction orthogonal to the longitudinal direction of the structural member 3 is a vertical direction, and a predetermined other direction orthogonal to the longitudinal direction and the predetermined one direction is a horizontal direction. And

  The structural member 3 is made of, for example, a metal material such as structural steel, and is made of an elongated cylindrical pillar material. The shape of the cross-section of the structural member 3 (cross-section by a plane orthogonal to the longitudinal direction) is a “B” shape in which both the outer shape and the inner shape are square.

  The reinforcing member 5 is also made of a metal material such as structural steel, and is formed in a rectangular flat plate shape. Further, the reinforcing member 5 is integrally provided with an adhesive 7 on a predetermined one of the four long and rectangular side surfaces of the structural member 3.

  Is the longitudinal direction of the reinforcing member 5 provided in the structural member 3 coincided with the longitudinal direction of the structural member 3, and is the length dimension of the reinforcing member 5 slightly smaller than the length dimension of the structural member 3? It is about the same.

  The width direction of the reinforcing member 5 provided in the structural member 3 coincides with the width direction of the structural member 3, and the width value of the reinforcing member 5 is slightly smaller than the width value of the structural member 3. The width direction center of the structural member 3 and the width direction center of the reinforcing member 5 coincide with each other.

  The thickness direction of the reinforcing member 5 provided in the structural member 3 is orthogonal to one side surface of the structural member 3.

  In the state where the reinforcing member 5 is provided on the structural member 3 (the reinforced structural member 3), the adhesive 7 is constant over the entire surface of one side of the reinforcing member 5 in the thickness direction (the surface on the structural member 3 side). Is provided in a thin film shape, and is present between the reinforcing member 5 and the structural member 3 without a gap, and fixes the reinforcing member 5 and the structural member 3 to each other.

  Further, in the reinforced structural member 3, the elastic modulus (for example, shearing) between the part 7A on one side of the adhesive 7 (part on the side of reference numeral 9A) and the part 7A on the other side (part on the side of reference numeral 9B). The elastic modulus G; transverse elastic modulus G) is smaller than the elastic modulus (for example, shear elastic modulus G; transverse elastic modulus G) of the other part 11.

  A part 7A on one side of the adhesive 7 (a part on the side of reference numeral 9A) is a predetermined position from one end of the reinforcing member 5 in the longitudinal direction of the reinforcing member 5 (predetermined position on one end side; predetermined from one end to the other end side). And a portion (a portion between one end and one end predetermined position) extending over the center of the reinforcing member 5 in the longitudinal direction).

  Similarly, a part 7A on the other side of the adhesive 7 (a part on the reference numeral 9B side) is a part extending from the other end of the reinforcing member to a predetermined position (predetermined position on the other end) in the longitudinal direction of the reinforcing member 5. (The part between the other end and the other end predetermined position).

  The part 7A on one side and the part 7A on the other side of the adhesive 7 are made of, for example, an epoxy-based elastic adhesive.

  The other part (intermediate or central part) 11 of the adhesive 7 is a part between one end side predetermined position and the other end side predetermined position in the longitudinal direction of the reinforcing member 5. The other part 11 of the adhesive 7 is composed of, for example, an epoxy-based adhesive (for example, Bond E258 manufactured by Konishi Co., Ltd.) whose elastic modulus when cured is larger than that of the cured epoxy-based elastic adhesive. Has been.

  Here, the effect | action of the reinforcement structure 1 of a structural member is demonstrated.

In the reinforcing structure 1 of the structural member, as pulling force F ₁ is an external force, when exerted on the structural member 3, the structural member 3 is elastically deformed. Due to the elastic deformation of the structural member 3, shear strain is generated in the adhesive 7, the adhesive 7 is elastically deformed, and the reinforcing member 5 is elastically deformed.

Further explanation will be given. End side portion 7A (reference numeral 9A, site 9B side) the shear modulus of the adhesive 7 in the _{G 1,} the shear modulus of the adhesive 7 in the intermediate section 7B (11) and _{G 2.} However, G ₁ <G ₂ is satisfied. End side portion 7A (reference numeral 9A, site 9B side) of the adhesive 7 in the relationship between the shear strain γ and the shear stress τ is as shown in the diagram L ₁ shown in FIG. The adhesive 7 in the intermediate section 7B (11), the relationship between the shear strain γ and the shear stress τ is as shown in the diagram L ₂ shown in FIG.

When the shear strain γ _z is generated in the adhesive 7, a shear stress τ ₁ is generated in the part 7 A (part on the side of reference numerals 9 A and 9 B) of the adhesive 7, and the intermediate part 7 B (11 ) Generates a shear stress τ ₂ . However, τ ₂ <τ ₁ .

As can be understood from the above, when the tensile force F ₁ is applied only to the structural member 3 in the reinforcing structure 1 of the structural member, the adhesive 7 if the shear elastic modulus G of the adhesive 7 is constant. The shear stress τ increases toward the end in the longitudinal direction, but since the shear elastic modulus G of the adhesive 7 decreases at the end in the longitudinal direction, the end 9 in the longitudinal direction of the adhesive 7. Thus, the shear stress τ generated in can be made smaller than that in the prior art.

  In addition, the structural member 3 in which the reinforcing member 5 is installed by the adhesive 7 can withstand a force applied by an earthquake or the like (the assumed maximum external force) and does not break. It only deforms within the elastic limit. Furthermore, even if a repeated load smaller than the assumed external force is applied, fatigue failure does not easily occur.

  According to the reinforcing structure 1 of the structural member, since the reinforcing member 5 is fixed to the structural member 3 only by the adhesive 7 without using a fastener such as a bolt, the configuration is simplified, and the reinforcing member 5 It is possible to reduce the number of man-hours for the construction for installing the structural member 3 on the structural member 3 as compared with the case of using a fastener such as a bolt together.

The horizontal elastic modulus G ₁ sites 7A end side of the adhesive 7 (sites at the ends 9) is smaller than the modulus of rigidity G ₂ further region 7B of adhesive 7 (11) Therefore, when the tensile force is applied only to the structural member 3 of the reinforced structural member 3, the shear stress τ generated in the end portion 7A of the adhesive 7 can be made smaller than the conventional one shown in FIG. This makes it difficult for stress concentration to occur at the end portion 9 in the longitudinal direction of the adhesive 7, so that the stress applied to the end portion 9 of the adhesive 7 can be relaxed, and the proof stress is improved as compared with the conventional one.

  Further, since the stress at the end 9 of the adhesive 7 is reduced, the deformability of the reinforced structural member 3 is improved. That is, when an external force is applied, the amount of deformation of the reinforced structural member 3 increases. Furthermore, in an environment in which it is not preferable to perform welding, it is not necessary to make a hole for passing a bolt through the structural member 3, so that reinforcement work is facilitated.

  By the way, in the above description, the lateral elastic modulus of the adhesive 7 is reduced only at both ends in the longitudinal direction of the structural member 3 and the reinforcing member 5, but the structural member 3 and the reinforcing member 5 are shown in FIG. The lateral elastic modulus of the adhesive 7 may be reduced at the both ends in the lateral direction. That is, the lateral elastic modulus of the adhesive 7 may be reduced at the “B” -shaped portion of the edge of the adhesive 7. Furthermore, the lateral elastic modulus of the adhesive 7 may be reduced only at the lateral end portions of the structural member 3 and the reinforcing member 5.

  Further, as shown in FIGS. 6 and 7, the reinforcing member 5 may be provided on all of the four side surfaces of the structural member 3, or two of the four side surfaces of the structural member 3. Alternatively, the reinforcing member 5 may be provided on three side surfaces. When the reinforcing members 5 are provided on the two side surfaces of the structural member 3, it is desirable to provide the reinforcing members 5 on the two side surfaces that are parallel to each other.

In the reinforcing structure 1 shown in FIG. 2, the lateral elastic modulus of the adhesive 7 is changed in two stages, but as shown in FIG. 12, the lateral elastic modulus of the adhesive 7 may be changed in three stages. A modulus of rigidity G ₁₃ of adhesive 7 of the intermediate portion 13 shown in FIG. 12, a modulus of transverse elasticity G ₁₅ of adhesive 7 sites 15 that are located next to the intermediate portion 13, the end side of the adhesive 7 relationship between the shear modulus _{G 17} of the adhesive 7 which is located at a site 17 _is adapted to _{G 17 <G 15 <G 13} .

  Furthermore, the lateral elastic modulus of the adhesive 7 may be changed in a plurality of stages of four or more stages, or the lateral elastic modulus of the adhesive 7 may be continuously changed.

  Further, instead of or in addition to the shear elastic modulus, the magnitude of the longitudinal elastic modulus (Young's modulus) E may be changed in the same manner as the shear elastic modulus.

  The reinforcing member 5 provided on the structural member 3 such as a column or a beam has an elongated rectangular shape, but the shape of the reinforcing member 5 may be changed as appropriate. For example, as shown in FIG. 13, the lateral dimension of the reinforcing member 5 may be gradually increased toward the end near the end in the longitudinal direction of the reinforcing member 5.

  Further, the surface on which the reinforcing member 5 is installed is not necessarily a flat surface, and may be a curved surface such as a cylindrical side surface. In this case, the shape of the reinforcing member 5 also coincides with the side surface of the column (for example, the shape of one member formed by cutting the cylinder into two along the plane including the central axis).

Further, in the above description, the case where the longitudinal tensile force is applied to the structural member 3 of the reinforcing structure 1 has been described. However, when the longitudinal compressive force is applied to the structural member 3 of the reinforcing structure 1, a bending moment is applied. Also in the case, the breakage at the end 9 of the adhesive 7 can be suppressed. The bending moment is indicated by reference numerals M ₁ , M ₂ and M ₃ in FIGS.

Moment M ₁ is a bending moment about an axis extending in the lateral direction, moment M ₂ is a bending moment (twisting moment) about an axis extending in the longitudinal direction, and moment M ₃ extends in the longitudinal direction. This is the bending moment around the axis.

  By the way, in the reinforcement structure 1 of a structural member, instead of changing the kind of the adhesive 7, the thickness of the adhesive 7 may be changed.

  That is, the thickness of the adhesive 7 that joins at least a part of the end of the reinforcing member 5 and the structural member 3 is equal to the thickness of the adhesive 7 joining the other part of the reinforcing member 5 and the structural member 3. It may be thicker than the thickness of the agent 7.

  For example, as shown in FIG. 8, at portions 19 on both ends in the longitudinal direction of the reinforcing member 5, the thickness of the reinforcing member 5 is reduced by scraping the surface of the reinforcing member 5 on the structural member 3 side by a predetermined thickness. It is getting thinner. In accordance with this, the thickness of the adhesive 7 in the portions 19 on both ends in the longitudinal direction of the reinforcing member 5 is thicker than the thickness of the adhesive 7 in the intermediate portion 21 in the longitudinal direction of the reinforcing member 5. Due to the difference in thickness, the rigidity of the adhesive 7 is different.

  In the case shown in FIG. 8, the thickness of the reinforcing member 5 is changed in two stages, but it may be changed in a plurality of stages of three or more stages in the same manner as shown in FIG. It may be changed continuously as shown. That is, the thickness of the reinforcing member 5 may be gradually reduced as it approaches the both ends in the vicinity of both ends in the longitudinal direction.

  8 and 9 may be modified as shown in FIG. 5, FIG. 6, FIG. 7, and FIG.

  According to the reinforcing structure 1 shown in FIGS. 8 and 9, since the stress at the end of the adhesive 7 is reduced by changing the thickness of the adhesive 7, the structural member 3 is bonded to the adhesive 7. When reinforcing with, it is only necessary to use one kind of adhesive 7, management of the adhesive 7 can be simplified, and reinforcement work can be simplified.

  Moreover, in the said description, although the stress in the edge part of the reinforcement member 5 (adhesive 7) is relieve | moderated by changing the aspect (elastic coefficient and thickness) of the adhesive 7, as shown in FIG. The shape of the reinforcing member 5 may be changed to relieve the stress at the end of the reinforcing member 5 (adhesive 7).

  That is, in the reinforcing structure 1 of the structural member, the thickness of the reinforcing member in at least a part of the end portion of the reinforcing member 5 may be made thinner than other parts of the reinforcing member to give the difference in rigidity. .

  For example, the thickness of the reinforcing member 5 at the both ends of the reinforcing member 5 may be made thinner than the middle portion of the reinforcing member 5. More specifically, in the structure shown in FIG. 10, the reinforcing member 5 includes a first member 23 and a second member 25. The first member 23 and the second member 25 are integrally joined to each other by welding or the like. This bonding is performed in another place before the reinforcing member 5 is bonded to the structural member 3 by the adhesive 7.

  In the example shown in FIG. 10, the thickness of the reinforcing member 5 is changed in two stages, but it may be changed in a plurality of stages of three or more stages in the same manner as shown in FIG. As shown, the thickness of the reinforcing member 5 may be changed continuously. That is, the thickness of the reinforcing member 5 may be gradually reduced as it approaches the both ends in the vicinity of both ends in the longitudinal direction.

  Further, the reinforcing structure 1 shown in FIGS. 10 and 11 may be modified as shown in FIGS. 5, 6, 7, and 13.

  According to the reinforcing structure 1 shown in FIG. 10 and FIG. 11, by changing the thickness of the reinforcing member 5, the rigidity at the end in the longitudinal direction of the reinforcing member 5 is reduced, and at the end of the adhesive 7. Therefore, it is only necessary to use one kind of adhesive 7, management of the adhesive 7 can be simplified, and the adhesive 7 is only provided on one flat surface without a step. The reinforcement work can be simplified.

  In addition, since the stress at the end of the adhesive 7 is reduced by changing the thickness of the reinforcing member 5, it is possible to respond more flexibly than when changing the type of the adhesive 7. . That is, when the thickness of the reinforcing member 5 is changed, the stress at the end of the adhesive 7 can be changed in a wider range than when the type of the adhesive 7 is changed. The stress at the end of the adhesive 7 can be changed and reduced.

  Note that the stress generated at the end of the adhesive 7 may be reduced by appropriately combining the mode shown in FIG. 2 and the like, the mode shown in FIG. 8 and the like, and the mode shown in FIG.

  The structural member reinforcing structure 1 described above includes a structural member, a reinforcing member provided on the structural member, and an adhesive that joins the structural member and the reinforcing member to reinforce the structural member. At least a part of the end portion of the reinforcing member and the adhesive that are joined, and the rigidity of at least one of the adhesive and the reinforcing member is It is an example of the reinforcement structure of the structural member which is lower than the rigidity of the said reinforcement member and the other site | part of the said adhesive agent.

  That is, when an external force is applied to the structural member, at least a part of the end portion of the reinforcing member being joined is more easily elastically deformed than the other portions, or an external force is applied to the structural member. When at least a part of the end portion of the bonded adhesive is more elastically deformed than the other part or when an external force is applied to the structural member, the reinforcing member is bonded This is an example in which at least a part of the end of the adhesive that is joined to at least a part of the end of the adhesive is more easily elastically deformed than other parts.

DESCRIPTION OF SYMBOLS 1 Reinforcement structure of structural member 3 Structural member 5 Reinforcement member 7 Adhesive 9 End part 11 Other site | parts (intermediate part or center part)

Claims (4)

A structural member;
A reinforcing member provided on the structural member;
An adhesive bonding the structural member and the reinforcing member to reinforce the structural member;
And the rigidity of at least one part of the adhesive member and the reinforcing member at the part of at least a part of the edge part of the adhesive member and the adhesive member to which the joint is made is joined. A reinforcing structure for a structural member, characterized by being lower in rigidity than the reinforcing member and other parts of the adhesive. In the reinforcing structure of the structural member according to claim 1,
The elastic modulus of the adhesive in at least a part of the end portion of the reinforcing member and the adhesive that is joined is bonded to the reinforcing member that is joined and the other part of the adhesive. A reinforcing structure for a structural member, characterized by being smaller than the elastic modulus of the agent. In the reinforcement structure of the structural member according to claim 1 or 2,
The thickness of the adhesive that joins at least a part of the end of the reinforcing member and the structural member joins the other part of the reinforcing member and the structural member A reinforcing structure for a structural member, characterized in that the structural member is thicker than the thickness. In the reinforcement structure of the structural member according to any one of claims 1 to 3,
A reinforcing structure for a structural member, wherein a thickness of the reinforcing member in at least a part of an end portion of the reinforcing member is thinner than other parts of the reinforcing member.

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