JP2017020270A - Structure reinforcement member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure reinforcement member capable of enhancing bearing force more than usual.SOLUTION: Structure reinforcement members A1 and A2 are adjacently arranged on a surface of a structure, and are installed integrally with the structure by filling a filler between the structure and itself, and comprise a reinforcement plate 1 and joint members 12 and 13 for connecting mutual end parts of the adjacent structure reinforcement members A1 and A2. The joint members 12 abd 13 comprise irregular parts 12a and 13a, tip engaging parts 12d and 13d and base end engaging parts 12e and 13e for engaging by contacting mutual overlapping surfaces 12b, 12c, 13b and 13c in a surface in a state of engaging the mutual irregular parts 12a and 13a, and are also formed so that the area of an engaging surface on the tip engaging part 12d, 13d side and the base end engaging parts 12e, 13e side becomes larger than the area of an engaging surface of an intermediate part of the irregular parts 12a and 13a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a structural reinforcement member.

  Conventionally, a steel sheet winding method has been frequently used as a reinforcement measure for structures. In this steel sheet winding method, a plurality of reinforcing steel plates (reinforcing plates) are arranged around structures such as building columns, beams, and piers, and the ends are welded together to connect adjacent reinforcing steel plates. At the same time, an epoxy resin or mortar is filled in the gap between the reinforcing steel plate and the structure.

  Thereby, the reinforcing steel plate installed so as to surround the structure is integrated with the structure, and the bending strength, shear strength, and toughness of the structure can be greatly improved. In addition, it is possible to greatly improve the proof strength against the bulging output that acts in the radial direction of the structure such as a column by a load such as compression.

  On the other hand, as shown in FIG. 8, joint members 2 and 3 are integrally provided at the end of the reinforcing steel plate 1, and the joint members 2 and 3 at the ends of the adjacent reinforcing steel plates 1 are overlapped and engaged with each other. In addition, there is a configuration in which the pair of joint members 2 and 3 are connected by bolting (see, for example, Patent Document 1 and Patent Document 2). In addition, the pair of joint members 2 and 3 are formed with concavo-convex portions (concave portions 5 and convex portions 4) 2a and 3a on the overlapping surfaces that engage with each other, and the concave portions of the pair of joint members 2 and 3 are formed. The end portions of the adjacent reinforcing steel plates 1 can be firmly connected by meshing (engaging) 5 with the convex portions 4.

  In addition, the joint members 2 and 3 are formed with recesses and projections by feeding a steel material into a work roll for rolling having a concavo-convex processed portion, and rolling it. After the rolling process, the bolt insertion holes 6 are formed. And manufactured. And the structure reinforcement members 7 and 8 are manufactured by attaching the joint members 2 and 3 integrally, such as by welding to the edge part of the steel plate 1 for reinforcement.

  According to the structure reinforcing members 7 and 8 configured by including the joint members 2 and 3 as described above, welding work is unnecessary, installation and fixing work can be easily performed, and a highly reliable reinforcement measure can be taken. It can be applied to the structure at a low cost and in a short time.

Japanese Patent No. 3177730 Japanese Patent No. 3177731

  Here, in the conventional structure reinforcing members 7 and 8, as shown in FIG. 9, the joint members 2 and 3 are formed by securing a predetermined thickness at each part from the distal end to the proximal end side. In addition, the overlapping surfaces 2b, 2c, 3b, and 3c on the distal end side and the proximal end side with the uneven portions 2a and 3a interposed therebetween (the overlapping surface 2b of the distal end engaging portions 2d and 3d and the proximal end engaging portions 2e and 3e) 2c, 3b, 3c) are formed in a planar shape, and the overlapping surfaces 2b, 2c, 3b, 3c on the front end side and the base end side include the center in the thickness direction of the reinforcing steel plate 1 in the plane. The joint members 2 and 3 are integrally attached to the end of the reinforcing steel plate 1 so as to be arranged on the top.

  In addition, the plurality of convex portions 4 and the plurality of concave portions 5 are formed with substantially the same diameter and the same size with the convex amount and the concave amount based on the reference plane P being substantially equal.

  In the conventional structure reinforcing members 7 and 8 configured as described above, an external force acts on the structure due to an earthquake or the like, and a very large tensile force R in a direction in which the connected reinforcing steel plates 1 are separated from each other. Acts on the pair of joint members 2 and 3 (joint structure), as shown in FIG. 10, the pair of joint members 2 and 3 are separated from the distal end engaging portions 2d and 3d and the proximal end engaging portions 2e and 3e. There is a risk of warping deformation S.

  Further, when a very large tensile force R acts and warp deformation S occurs in the joint members 2 and 3, the tensile force R is received only by the uneven portions 2 a and 3 a at the intermediate portion, and the tip engaging portions 2 d, The uneven portions 2a and 3a on the 3d side and proximal end engaging portions 2e and 3e side do not contribute to the yield strength (allowable strength and ultimate strength) of the joint structure.

  In view of the above circumstances, an object of the present invention is to provide a member for reinforcing a structure that makes it possible to increase the proof stress as compared with the related art.

  In order to achieve the above object, the present invention provides the following means.

  The structural reinforcing member of the present invention is a structural reinforcing member that is disposed adjacent to the surface of the structural body, is filled with a filler between the structural body, and is integrally installed in the structural body. A reinforcing plate, and a joint member that is provided integrally with an end portion of the reinforcing plate and connects the end portions of the adjacent structure reinforcing members. An uneven portion that meshes and joins the joint members of the structural reinforcing members that fit together, and is provided on the proximal side on the distal end side and the reinforcing plate side across the uneven portion, and adjacent to the A front end engaging portion and a base end engaging portion that engage with each other by bringing the overlapping surfaces into contact with each other in a state where the concave and convex portions of the joint member of the structure reinforcing member are engaged, and The concave portion on the distal end engaging portion side is made larger than the concave portion on the proximal end engaging portion side, The convex portion on the proximal end engaging portion side is made larger than the convex portion on the distal end engaging portion side, and the area of the engaging surface on the distal end engaging portion side and the proximal end engaging portion side is intermediate between the concave and convex portions. It is formed so that it may become larger than the area of the engaging surface of a part.

  In the structure reinforcing member of the present invention, each joint member has a concave portion on the distal end engaging portion side larger than a concave portion on the proximal end engaging portion side, and the convex portion on the proximal end engaging portion side is engaged with the distal end. Even when a very large tensile force is applied and the joint member is warped and deformed, the pair of large convex portions and large concave portions are engaged with each other. It is possible to maintain the engaged state between the distal end engaging portions and the proximal end engaging portions of the joint member.

  Accordingly, it is possible to receive the tensile force not only by the concave and convex portions of the intermediate portion of the pair of joint members engaged with each other but also by the concave and convex portions on the distal end engaging portion side and the proximal end engaging portion side.

  Therefore, it is possible to reliably contribute to the strength of the joint structure by using the convex and concave portions on the distal end engagement portion side and the proximal end engagement portion side, and improve the yield strength as a structural reinforcement member compared to the conventional structure. It becomes possible to make it. That is, the structure can be reinforced more suitably.

It is sectional drawing which shows the reinforcement structure of the structure which concerns on one Embodiment of this invention, and the member for structure reinforcement. It is a figure which shows the joining state of the joint member of the member for structure reinforcement which concerns on one Embodiment of this invention. It is a figure which shows the coupling member of the member for structure reinforcement which concerns on one Embodiment of this invention. It is a figure which shows the manufacturing apparatus of the coupling member which concerns on one Embodiment of this invention. In the construction method of the structure reinforcement structure which concerns on one Embodiment of this invention, it is the figure used for description of the jig | tool assembly process for attachment. In the construction method of the reinforcement structure of the structure which concerns on one Embodiment of this invention, it is the figure used for description of the reinforcement board standing-up process and the reinforcement board connection process. It is the figure used for description of the reinforcement board raising process in the construction method of the reinforcement structure of the structure which concerns on one Embodiment of this invention. It is a figure which shows the conventional joint structure (a joint member, a reinforcement board, a member for structure reinforcement). It is a figure which shows the conventional coupling member. It is a figure used in order to explain the situation where warp deformation arises in the conventional joint structure by the action of tensile force.

  Hereinafter, a structure reinforcing member according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.

  As shown in FIG. 1, the structural reinforcement members A <b> 1 and A <b> 2 of the present embodiment are members that are applied to a steel sheet winding method as a reinforcing measure for the structural object 10. The structure reinforcing structure B according to the present embodiment includes, for example, a pair of structure reinforcing members A1 and A2 formed in a U-shaped cross section, such as a pillar of a building and a pier, and a column made of reinforced concrete having a rectangular cross section. Are arranged so as to surround the structure 10, and the gap between the pair of structure reinforcing members A1 and A2 and the structure 10 is filled with a filler 11 such as epoxy resin or mortar to reinforce the pair of structures. The structural members A1 and A2 are integrated with the structure 10.

Further, the structural reinforcement members A1 and A2 of the present embodiment are integrally provided by welding or the like to the reinforcing plate 1 formed in a U-shaped cross section and both end portions (both side end portions) of the reinforcing plate 1, respectively. The two joint members 12 and 13 are arranged so as to surround the structure 10 and connect the ends of the adjacent structure reinforcing members A1 and A2 to each other.
The structural reinforcement members A1 and A2 may be configured to have a linear shape with a flat reinforcing plate 1, or may be configured to have an L shape with an L-shaped reinforcing plate 1 for example. Good.

  As shown in FIGS. 1 and 2, the joint members 12 and 13 surround one structure reinforcing member A <b> 1 and the other structure reinforcing member A <b> 2 adjacent to a structure 10 such as a pillar, respectively. In the disposed state, the joint member 12 of one structure reinforcing member A1 and the joint member 13 of the other structure reinforcing member A2 are provided so as to overlap each other.

  Further, as shown in FIGS. 2 and 3, the joint members 12 and 13 are provided with concave and convex portions 12a and 13a that are engaged with each other when the joint members 12 and 13 are overlapped with each other, and the concave and convex portions 12a. , 13a is provided on the front end side and the base end side of the reinforcing plate 1 side, and the concave and convex portions 12a and 13a of the joint members 12 and 13 of the adjacent structure reinforcing members A1 and A2 are engaged with each other. Are formed with tip engagement portions 12d and 13d and base end engagement portions 12e and 13e that engage with each other by bringing the overlapping surfaces 12b, 12c, 13b, and 13c into surface contact with each other.

  That is, a plurality of concave portions 5 and a plurality of convex portions for restraining the movement of the reinforcing plate 1 in the adjacent direction are formed on the overlapping surface of the concave and convex portions 12a engaged with the other joint member 13 of the one joint member 12. The parts 4 are formed alternately. In addition, on the overlapping surface of the concavo-convex portion 13a to be engaged with one joint member 12 of the other joint member 13, a plurality of convex portions 4 and a plurality of convex portions 4 for restricting the movement of the reinforcing plate 1 in the adjacent direction. The concave portions 5 are formed alternately in a row so that the concave portions 5 are engaged with the convex portions 4 of the one joint member 12, and the convex portions 4 are engaged with the concave portions 5 of the one joint member 12.

  The joint members 12 and 13 are joined to the end engaging portions 12d and 13d on the tip side and the end of the reinforcing plate 1 with the uneven portions 12a and 13a including the plurality of convex portions 4 and the plurality of concave portions 5 interposed therebetween. The base end side is formed with base end engaging portions 12e and 13e, respectively. Further, the joint members 12 and 13 of the present embodiment are such that the thickness dimension H gradually increases from the distal end toward the proximal end (the thickness dimension H gradually decreases from the proximal end toward the distal end). Is formed). In addition, this thickness dimension H means the dimension between the back surfaces 12f and 13f of the joint members 12 and 13, and the virtual line which connects the front-end | tips of the convex part 4 (4b) of the intermediate part of the uneven | corrugated | grooved parts 12a and 13a. .

  Furthermore, each joint member 12 and 13 is the base end and the front end of the joint members 12 and 13 which are substantially the adjacent structure reinforcing members A1 and A2 among the joint surfaces of the concave portions 5 and the convex portions 4 of the concave and convex portions 12a and 13a. The angle α formed between each engagement surface 14 that engages when pulled in the inter-direction and the reference plane P including the center in the thickness direction of the reinforcing plate 1 in the plane is 90 °> α ≧ 45 °, and The angle β formed between each engagement surface 15 facing the engagement surface 14 and the reference surface P is α ≧ β.

  Further, the joint members 12 and 13 are respectively formed with bolt insertion holes (not shown) through the distal end engaging portions 12d and 13d and the proximal end engaging portions 12e and 13e. Then, when the joint member 12 of one structure reinforcing member A1 and the joint member 13 of the other structure reinforcing member A2 are overlapped, the bolt insertion hole of the tip engaging portion 12d of the one joint member 12 And the bolt insertion hole of the base end engaging portion 13e of the other joint member 13 communicate with each other, and the bolt insertion hole of the base end engaging portion 12e of the one joint member 12 and the tip engaging portion 13d of the other joint member 13 are connected. The bolt insertion hole is in communication. At the same time, a bolt is inserted into the bolt insertion hole from the inner surface side, and a nut is screwed and fastened to the bolt protruding from the bolt insertion hole to the outer surface side through a washer.

  The joint member does not necessarily have to be formed with a bolt insertion hole. That is, you may comprise so that a pair of coupling member may be connected only by engaging a mutual uneven | corrugated | grooved part. Even in this case, the pair of joint members 12, 13 and the ends of one structure reinforcing member A1 and the other structure reinforcing member A2 are firmly connected and fixed.

  On the other hand, in the structure reinforcing members A1 and A2 of the present embodiment, the joint members 12 and 13 have the concave portions 5 (5a) on the distal end engaging portions 12d and 13d side as the concave portions on the proximal end engaging portions 12e and 13e side. (Concave part 4a, 5a middle part concave part) 5 (5b) is formed larger, and the proximal end engaging part 12e, 13e side convex part 4 (4a) is convex on the distal end engaging part 12d, 13d side It is formed to be larger than the portion 4 (4b).

  As a result, the areas of the engagement surfaces 14 and 15 on the distal end engagement portions 12d and 13d side and the proximal end engagement portions 12e and 13e side of the joint members 12 and 13 where the concave and convex portions 4a and 5a mesh and come into surface contact ( The total engagement area) is formed so as to be larger than the area of the engagement surfaces 14 and 15 at the intermediate part of the concavo-convex parts 4a and 5a.

  Here, the joint members 12 and 13 of this embodiment are manufactured by rolling a steel material.

  Specifically, for example, as shown in FIG. 4, the joint members 12 and 13 include a pair of work rolls 17 and 18 for rolling that are arranged at predetermined intervals while the rotation axes O1 and O2 are parallel to each other. It is manufactured using the rolling processing device 19 provided.

  One work roll 17 has a processed portion 17a formed in a columnar shape having a constant outer diameter in the direction of the rotation axis O1.

  The other work roll 18 is formed in a substantially truncated cone shape whose diameter decreases as the processed portion 18a moves from one side to the other side toward the rotation axis O2. The other work roll 18 is formed with an engagement surface of the joint members 12 and 13 orthogonal to the rotation axis O2 on the surface of the processed portion 18a, and includes the recesses 5 and the protrusions including the engagement surfaces 14 and 15. 4, and a plurality of annular protrusions 21, and front end and rear side in the direction of the rotation axis O <b> 1 across the plurality of annular protrusions 21. 13d and proximal end engaging portions 12e and 13e are formed to include a distal end engaging portion forming portion 22 and a proximal end engaging portion forming portion 23, respectively.

  Further, in the present embodiment, among the plurality of annular protrusions 21, the annular protrusion 21 (21a) on the proximal end engaging part forming part 23 side is longer than the other annular protrusions 21 (21a) by the protruding length and width. It is formed with a larger size. Further, the recess between the annular protrusion 21 (21b) on the tip engagement portion forming portion 22 side and the tip engagement portion forming portion 22 is formed with a depth, width, etc. larger than other portions. ing.

  In this rolling processing device 19, when a steel material (workpiece) 20 is fed between the pair of work rolls 17 and 18, the annular protrusion 21 and the tip engagement portion forming portion of the processing portion 18 a of the other work roll 18. 22, the base end engaging portion forming portion 23 presses and bites into one surface of the steel material 20, and the steel material 20 is rolled between the pair of work rolls 17 and 18. Concave and convex portions 12a and 13a made of the convex portion 4, tip engaging portions 12d and 13d, and base end engaging portions 12e and 13e are formed.

Further, in this embodiment, at this time, the annular protrusion 21 (21a) on the proximal end engaging portion forming portion 23 side is formed with a protruding length, a width, etc. larger than those of the other annular protrusions 21 (21a). Has been. Furthermore, the recess 24 between the annular protrusion 21 (21b) on the tip engagement portion forming portion 22 side and the tip engagement portion forming portion 22 has a greater depth, width, and the like than the other portions. Is formed.
For this reason, these large annular protrusions 21 (21a) and large recesses 24 have large convex portions 4 and large concave portions on one surface of the distal end engaging portions 12d and 13d and the proximal end engaging portions 12e and 13e of the steel material 20. 5 is formed.

  And the bolt insertion hole is formed in the steel material 20 rolled as described above, and if necessary, the outer surface and the inner surface are subjected to cutting, or the bolt is attached in advance by spot welding or the like, The manufacture of the joint members 12 and 13 is completed.

  Next, an example of a method of constructing the reinforcing structure B of the structure including the structure reinforcing members A1 and A2 of the present embodiment having the above-described configuration will be described.

  First, as shown in FIG. 5, for example, a mounting jig 31 is assembled and fixed to the base portion of a column (structure) 10 erected on the foundation portion 30. The mounting jig 31 includes a base 32 fixed to the base portion, and two ladder-shaped reinforcing plate mounting portions that are rotatably attached to the base 32 and rotate in a direction to sandwich the column 10. 33 (attachment jig assembling step).

  Then, the reinforcing plate mounting portion 33 of the mounting jig 31 is rotated and brought down on the base portion 30, and the structural reinforcing members A 1 and A 2 are respectively placed on the reinforcing plate mounting portion 33 on the inner surface side. Place it up. As shown in FIGS. 5 and 6, the reinforcing plate mounting portion 33 is rotated in the direction in which the pillar 10 is sandwiched (in the direction of the arrow in the drawing), and the structure reinforcing members A1 and A2 in the mounted state are moved. Let each stand up. Thus, the pair of structural reinforcement members A1 and A2 are disposed so as to surround the column 10 in a state of facing each other and in a state of providing a certain gap between the column 10 (reinforcing plate). Standing process).

  Also, at this time, a spacer for securing a certain gap with the pillar 10 on the inner surface side of the upper end portion of the pair of structural reinforcement members A1 and A2 connected, and mortar to be injected in a subsequent process are filled. A sealing member for preventing leakage of the agent 11 is attached.

  And while standing up a pair of structure reinforcement member A1 and A2 as mentioned above, the joint members 12 and 13 of one structure reinforcement member A1 and the other structure reinforcement member A2 are piled up, The concavo-convex portions 12a and 13a of the joint members 12 and 13 are engaged with each other, the distal end engaging portions 12d and 13d and the proximal end engaging portions 12e and 13e are engaged with each other. Further, the joint members 12 and 13 are fixedly connected to each other with bolts and nuts (reinforcing plate connecting step).

  Next, as shown in FIG. 7, the assembled pair of structure reinforcing members A <b> 1 and A <b> 2 are raised upward along the column 10, and the upper ends of the pair of structure reinforcing members A <b> 1 are connected to the beam on the column 10. 34 is brought into contact with the lower part. At this time, the temporary fixing bolts are passed through the temporary fixing through holes formed in the lower parts of the structural reinforcement members A1 and A2, and the temporary bolts formed in the pillars 10 at the positions corresponding to the temporary fixing through holes. By inserting into the fixing hole, the structural reinforcement members A1 and A2 are temporarily fixed so as not to slip off. Further, the above-described reinforcing plate standing step, reinforcing plate connecting step, and reinforcing plate raising step are repeated, and a plurality of structural reinforcement members A1 and A2 are attached to the entire peripheral surface of the column 10 in a temporarily fixed state (reinforcing plate). Lifting process).

  After temporarily fixing all the structural reinforcement members A1 and A2, the structural reinforcement members A1 and A2 are permanently fixed. Further, the upper ends of the structure reinforcing members A1 and A2 are sealed using the sealing members, respectively. The structural reinforcement members A1 and A2 adjacent to each other in the vertical direction are connected and fixed appropriately by welding or the like (reinforcing plate fixing step).

Next, a filler 11 such as mortar is injected and filled into the gaps between the structural reinforcement members A1 and A2 and the pillars 10, and is cured until the filler 11 is sufficiently solidified (filler injection step).
Finally, the mounting jig 31 is disassembled, and the construction of the reinforcing structure B of the structure of this embodiment is completed.

  In the structure reinforcing members A1 and A2 (structural reinforcement structure B) of the present embodiment configured as described above, the joint members 12 and 13 are connected to the recesses 5 (the front engaging portions 12d and 13d side) ( 5a) is larger than the concave portion 5 (5b) on the proximal end engaging portions 12e, 13e side, and the convex portion 4 (4a) on the proximal end engaging portions 12e, 13e side is on the distal end engaging portions 12d, 13d side. It is formed larger than the convex part 4 (4b).

  Accordingly, the areas of the engaging surfaces 14 and 15 on the distal end engaging portions 12d and 13d side and the proximal end engaging portions 12e and 13e side of the joint members 12 and 13 where the concave and convex portions 4a and 5a mesh and come into surface contact with each other. Are larger than the area of the engaging surfaces 14 and 15 at the intermediate part of the concave and convex portions 4a and 5a, the concave and convex portions 4a and 5a are engaged with each other, and the joint members 12 and 13 are connected to each other.

  As a result, when an external force acts on the structure 10 due to an earthquake or the like and a very large tensile force R in a direction separating the connected structure reinforcing members A1 and A2 acts on the pair of joint members 12 and 13 Even if it exists, the big recessed part 5 (5a) of the front end engaging parts 12d and 13d of one joint member 12 and 13 and the big convex part 4 by the side of the base end engaging parts 12e and 13e of the other joint members 12 and 13 are provided. Since (4a) is engaged and the contact area of the engagement surfaces 14 and 15 is increased, the engagement state between the distal end side and the proximal end side of each joint member 12 and 13 is maintained. For this reason, not only the concave and convex portions 12a and 13a of the intermediate portions of the pair of joint members 12 and 13 meshing with each other, but also the concave and convex portions 12a and 13a on the distal end engaging portions 12d and 13d side and the proximal end engaging portions 12e and 13e side. It becomes possible to receive the tensile force R also by.

  Therefore, the concave and convex portions 12a and 13a of the pair of joint members 12 and 13, the distal end engaging portions 12d and 13d, and the proximal end engaging portions 12e and 13e are hardly disengaged, and a very large tensile force R acts. As a result, the deformation resistance of the joint members 12 and 13 and the proof stress are increased.

  That is, in the structure reinforcing members A1 and A2 of the present embodiment, the entire concave and convex portions 12a and 13a including the distal end engaging portions 12d and 13d and the proximal end engaging portions 12e and 13e are preferable as compared with the conventional members. This contributes to the proof strength (allowable proof strength, ultimate proof strength) of the joint structure, and the proof strength as the structural reinforcement members A1 and A2 is improved. Therefore, by providing the structural reinforcement members A1 and A2 and the structural reinforcement structure B of the present embodiment, the structural body 10 is suitably subjected to reinforcement measures.

  Therefore, in the structure reinforcing members A1 and A2 of the present embodiment, the joint members 12 and 13 have the recessed portions 5 (5a) on the distal end engaging portions 12d and 13d side as the recessed portions on the proximal end engaging portions 12e and 13e side. 5 (5b), and the protrusions 4 (4a) on the proximal end engaging portions 12e and 13e side are made larger than the protrusions 4 (4b) on the distal end engaging portions 12d and 13d side. Therefore, even when a very large tensile force R is applied and warp deformation S occurs in the joint members 12 and 13, the pair of joint members 12 and 13 are engaged by the engagement of the large convex portions 4 and the large concave portions 5. The engagement state between the distal end engaging portions 12d and 13d and the proximal end engaging portions 12e and 13e can be maintained.

  As a result, not only the concave and convex portions 12a and 13a at the intermediate portions of the pair of joint members 12 and 13 meshed with each other, but also the concave and convex portions 12a and 12a on the distal end engaging portions 12d and 13d side and the proximal end engaging portions 12e and 13e side. It becomes possible to receive the tensile force R also by.

  Therefore, it is possible to reliably contribute the convex portion 4 and the concave portion 5 on the distal end engaging portions 12d and 13d side and the proximal end engaging portions 12e and 13e side to the proof stress of the joint structure. It becomes possible to improve the yield strength as the reinforcing members A1 and A2. That is, the structure 10 can be reinforced more suitably.

  Furthermore, in the structure reinforcing members A1 and A2 of the present embodiment, the respective members that engage when the adjacent structure reinforcing members A1 and A2 are pulled in the direction between the proximal ends and the distal ends of the joint members 12 and 13 are engaged. The angle α formed between the mating surface 14 and the reference surface P is 90 °> α ≧ 45 °, and the angle β formed between each engagement surface 15 facing the engagement surface 14 and the reference surface P is α ≧ When β is set, the engagement surfaces 14 and 15 of the joint members 12 and 13 are engaged with each other when the tensile force R acts in the direction in which the reinforcing plates 1 of the adjacent structure reinforcing members A1 and A2 are separated from each other. The joint strength between the joint members 12 and 13 is improved. Thereby, it becomes possible to reinforce the structure 10 more suitably.

  As mentioned above, although one Embodiment of the member for structure reinforcement which concerns on this invention was described, this invention is not limited to said one Embodiment, It can change suitably in the range which does not deviate from the meaning.

  For example, in the present embodiment, the structure 10 to be reinforced is described as being a reinforced concrete column. In addition, the structure according to the present invention may be other than a column member such as a horizontal member such as a truss beam or a beam member such as a diagonal member. Furthermore, it is not necessary to limit the cross-sectional shape of a structure such as a column or beam to a rectangle (square).

  In the present embodiment, the structure reinforcing member according to the present invention is assumed to be a member applied to the steel sheet winding method, and the reinforcing plate 1 is a steel plate. If the reinforcing plate can be installed so as to surround the structure 10 to obtain a reinforcing effect, in addition to the steel plate, for example, a fiber material such as a stainless steel plate, a duralumin plate, an aluminum plate, or glass fiber is used as the reinforcing material. It may be composed of other materials such as fiber reinforced plastic (FRP).

  Further, the joint members 12 and 13 have been described as being integrally provided by welding to the reinforcing plate 1, but the joint members 12 and 13 may be attached to the reinforcing plate 1 using other joining means such as bolt joining. Of course.

1 Steel plate for reinforcement (reinforcement plate)
2 Conventional joint member 2a Concavity and convexity 2b Superposition surface 2c Superposition surface 2d Front end engagement portion 2e Base end engagement portion 3 Conventional joint member 3b Superposition surface 3c Superposition surface 3d Front end engagement portion 3e Base end engagement Part 4 Convex part 5 Concave part 6 Bolt insertion hole 7 Conventional structure reinforcing member 8 Conventional structure reinforcing member 10 Structure (column)
11 Filler 12 Joint member 12a Concavity and convexity portion 12b Superposition surface 12c Superposition surface 12d Tip engagement portion 12e Base end engagement portion 12f Rear surface 13 Joint member 13a Concavity and convexity portion 13b Superposition surface 13c Superposition surface 13d Tip engagement portion 13e Base end engaging portion 13f Back surface 14 Engaging surface 15 Engaging surface 17 Work roll 17a Processing portion 18 Work roll 18a Processing portion 19 Rolling processing device 20 Steel material 21 Annular protrusion 22 Tip engaging portion forming portion 23 Base end engaging portion Forming part 24 Recess 30 Base part 31 Mounting jig 32 Base 33 Reinforcement plate placement part A1 Structure reinforcement member A2 Structure reinforcement member B Structure reinforcement structure H Thickness dimension O1 Rotating axis O2 Rotating axis P Reference surface R Tensile force S Warp deformation (warp deformation amount)

Claims (1)

A structure reinforcing member that is arranged adjacent to the surface of the structure and is filled with a filler between the structure and installed integrally with the structure,
It is provided with a reinforcing plate and a joint member that is integrally provided at the end of the reinforcing plate, and connects the ends of the adjacent structural reinforcing members,
The joint member includes a concavo-convex portion that is engaged with each other when the joint members of the adjacent structural reinforcement members are overlapped with each other, a distal end side across the concavo-convex portion, and a proximal end side on the reinforcing plate side. A distal end engaging portion and a proximal end engaging portion which are provided and engage with each other by bringing the overlapping surfaces into contact with each other in a state where the concave and convex portions of the joint members of the adjacent structure reinforcing members are engaged with each other. And
And the concave portion on the distal end engaging portion side is made larger than the concave portion on the proximal end engaging portion side, and the convex portion on the proximal end engaging portion side is made larger than the convex portion on the distal end engaging portion side, The structure is characterized in that the area of the engaging surface on the distal end engaging part side and the base end engaging part side is formed to be larger than the area of the engaging surface of the intermediate part of the concavo-convex part. Material reinforcement member.

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