WO2016117384A1

WO2016117384A1 - Structure manufacturing method, joint, rod having joint and construction member

Info

Publication number: WO2016117384A1
Application number: PCT/JP2016/050452
Authority: WO
Inventors: 晋一塩屋; 忠浩石峯; 亮介河邊
Original assignee: 国立大学法人鹿児島大学
Priority date: 2015-01-19
Filing date: 2016-01-08
Publication date: 2016-07-28
Also published as: JPWO2016117384A1; JP6802976B2

Abstract

A joint (1) (fiber layers (1A, 1B)) is formed by wrapping resin-impregnated fiber sheets around the surface of a rod having non-adhesive properties with respect to the resin, curing the resin in this state and then pulling out the rod. Irregularities, which match a plurality of irregularities on the surface of the rod, are formed on an inner wall surface of the joint (1). The joint (1) is formed using a convenient method of wrapping fiber sheets around a rod, on the surface of which a plurality of irregularities are formed, and then curing the resin. Furthermore, since the joint (1) is formed of fiber sheets, the joint (1) is small and lightweight. In addition, the plurality of irregularities are formed on the inner surface of the joint (1) and therefore high joining strength can be obtained.

Description

Manufacturing method of structure, joint, bar with joint, and construction member

The present invention relates to a structure manufacturing method, a joint, a bar with a joint, and a construction member.

When building a building, the reinforcing bars inserted in the construction member are joined together by a joint (sleeve or pipe). Among such joints, there is a joint whose joint strength with a reinforcing bar is increased by forming a plurality of irregularities on the inner surface (see, for example,

Patent Documents

1, 2, and 3).

Japanese Patent Laid-Open No. 8-49356 JP 7-279314 A JP-A-6-129058

However, in order to manufacture the joint described in Patent Document 1 and the like, a complicated process for forming a plurality of irregularities on the inner surface is required. In addition, such a joint can be manufactured only with a large thickness.

The present invention has been made in view of the above circumstances, and provides a manufacturing method, a joint, a bar with a joint, and a construction member, which can be easily manufactured, have a small size, light weight, and high joint strength. With the goal.

In order to achieve the above object, a method of manufacturing a structure according to the first aspect of the present invention includes:
A tubular joint made of a fiber sheet impregnated with the cured resin is cured by fixing the resin sheet while winding the fiber sheet impregnated with the resin on a side surface of a shaft rod on which a plurality of irregularities are formed. A first step to create;
A second step of extracting the shaft rod halfway from one end of the joint;
In a state where the first bar for bending reinforcement is inserted from the other end of the joint, a third step of fixing an adhesive to the joint and fixing the first bar to the joint;
A fourth step of completely extracting the shaft rod from one end of the joint;
A fifth step of fixing the joint and the first bar to a wooden or concrete construction member in a state in which a joint bar for joining one end of the joint to another construction member can be inserted. When,
including.

Prior to the first step,
Including a sixth step of generating the shaft rod by winding a tape having a plurality of irregularities formed in a mesh shape on the side surface of the core rod capable of adjusting the radius and having non-adhesiveness to the resin;
In the second step,
Shortening the radius of the core rod and extracting the shaft rod;
It is good as well.

Prior to the first step,
Including a seventh step of forming a helical thread groove on a side surface of the shaft rod;
In the second step,
Extracting the shaft rod while rotating the shaft rod relative to the joint along the thread groove;
It is good as well.

An eighth step of forming a through hole that passes through the inner side surface of the joint and the outer surface of the construction member to which the joint is fixed;
A ninth step of inserting a second bar for joining with another construction member from one end of the joint;
A tenth step of injecting an adhesive from the through hole and fixing the joint and the second bar;
including,
It is good as well.

The joint according to the second aspect of the present invention is
A tubular joint including a fiber sheet wound in a tubular shape, impregnated with a cured resin, and having a plurality of irregularities formed on the inner surface.

The bar with a joint according to the third aspect of the present invention,
A fiber sheet wound in a tubular shape, impregnated with a cured resin, and formed with a plurality of irregularities on the inner surface;
A bending reinforcement rod inserted halfway through the fiber sheet;
An adhesive layer made of an adhesive encapsulated between the bar and the fiber sheet;
Is provided.

The construction member according to the fourth aspect of the present invention is:
A bar with a joint of the present invention;
In a state in which a joining bar for joining with another construction member can be inserted into an end of the jointed bar, a wooden or concrete member that fixes the bar with the joint, and
Is provided.

According to the present invention, the tubular joint is formed by a simple method of winding a fiber sheet impregnated with a resin around a shaft rod having a plurality of irregularities formed on the side surface and curing the resin. Moreover, since this joint is formed with the fiber sheet, it is small and lightweight. Further, since a plurality of irregularities are formed on the inner side surface of the joint, a high bonding force can be obtained between the bar inserted into the joint.

It is a figure which shows the external appearance of the coupling and bar which concern on Embodiment 1 of this invention. It is the figure which looked at the joint and the bar from the longitudinal direction. It is a figure which shows the state in which two bar materials were joined to the joint. It is sectional drawing of the coupling seen from the longitudinal direction. It is sectional drawing of the coupling along a longitudinal direction. It is sectional drawing which looked at the construction member in which a joint is integrated from the side surface extended in a longitudinal direction. It is the figure which looked at the construction member from the longitudinal direction. It is sectional drawing which shows a part of coupling | joint inserted in the construction member. It is a flowchart (the 1) of the manufacturing method of a coupling, a construction member, and a structure. It is a flowchart (the 2) of the manufacturing method of a coupling, a construction member, and a structure. It is a perspective view of the core rod used for manufacture of a coupling. P. P. It is a figure which shows the state which wound the tape. It is a figure which shows the state which wound the fiber sheet which makes an axial direction the direction of a fiber around a shaft rod. It is a figure which shows the state which wound the fiber sheet which makes a circumferential direction the direction of a fiber around a shaft bar. It is a figure which shows the coupling wound around the axial resorcinol resin rod. It is a figure which shows the state which made the radius of the shaft bar small. It is a figure which shows a mode that the shaft rod was pulled out to the middle. It is a figure which shows a mode that the bar was inserted in the coupling. It is a figure which shows a mode that the contact bonding layer was formed between the bar and a coupling. It is a figure which shows a mode that the shaft rod was pulled out completely. It is a figure which shows a mode that the joint and the bar were inserted and fixed to the groove part of the flat plate. It is a perspective view which shows two construction members and the joining bar material which joins them. It is a figure which shows the state by which the joining bar was inserted in one construction member. It is a top view which shows the state by which the joining bar was inserted in both construction members. It is a perspective view which shows the state by which the joining bar was inserted in both construction members. It is a figure which shows a mode that an adhesive agent is inject | poured into the joined construction member. It is a figure which shows a mode (before joining) which joins two construction members as a beam via a pillar. It is a figure which shows a mode that two construction members as a beam are joined via a pillar (after joining). It is a perspective view which shows the structure of the axial rod used for manufacture of the coupling which concerns on Embodiment 2 of this invention, and a coupling. It is a figure which shows the example (the 1 and before joining) which joins a reinforced concrete foundation and a construction member. It is a figure which shows the example (the 1 after joining) which joins a reinforced concrete structure foundation and a construction member. It is a figure which shows the example (the 2 and before joining) which joins a reinforced concrete foundation and a construction member. It is a figure which shows the example (the 2 after joining) which joins a reinforced concrete structure foundation and a construction member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 FIG.
As shown in FIG. 1A, the joint 1 is a tubular joint member (sleeve) extending in one direction. The joint 1 is a carbon fiber pipe made of carbon fiber reinforced plastic. The joint 1 joins the bar 2 and the bar 3 together. The

bars

2 and 3 are, for example, deformed reinforcing bars.

As shown in FIG. 1B, the joint 1 is an annular joint. The

bars

2 and 3 are cylindrical bars. The diameter of the inner tube of the joint 1 is about 2 to 3 mm larger than the radius of the

bars

2 and 3.

As shown in FIG. 1C, the joint 1 joins the bar 2 and the bar 3 by inserting the bar 2 and the bar 3 into the inside of the pipe from both ends and further encapsulating the adhesive. . The joint 1 can be formed by a simple manufacturing method, is small and light, and gives a high joining force between the bar 2 and the bar 3. Hereinafter, the structure and manufacturing method will be described.

2A and 2B, the joint 1 is composed of two

fiber layers

1A and 1B.

The fiber layer 1A is formed by winding a carbon fiber sheet impregnated with resin in an annular shape and curing the resin. The carbon fiber sheet is wound with the fiber direction as the axial direction of the joint 1. This fiber sheet is wound into, for example, four layers.

The fiber layer 1B is formed by winding a carbon fiber sheet impregnated with resin in an annular shape and curing the resin. This carbon fiber sheet is wound with the fiber direction as the circumferential direction of the joint 1. This fiber sheet is wound, for example, in 4 volumes.

As shown in FIG. 2A, an adhesive layer 4 formed by filling an adhesive is formed between the bar 2 and the joint 1 (fiber layer 1A). The joint 1 and the bar 2 (or bar 3) are joined via the adhesive layer 4. As shown in FIG. 2B, the bar 2 and the bar 3 are connected in the axial direction by a joint 1.

Since the joint 1 is composed of the fiber layers 1A and 1B, it is very small and lightweight. Further, since the fiber layer 1A and the fiber layer 1B have different fiber directions, the joint 1 can be strengthened against forces in all directions such as an axial tensile force and a compressive force. Can be improved.

2A and 2B, a plurality of irregularities are formed on the innermost side of the fiber layer 1A, that is, on the inner side surface of the joint 1, as shown in a partially enlarged manner. By this unevenness | corrugation, the contact area of the joint 1 and the contact bonding layer 4 can be raised, and the joining strength of the bar |

burrs

2 and 3 inserted can be improved greatly. For example, due to the presence of irregularities, the pulling force of the reinforcing

bars

2 and 3 coming out of the joint 1 can be increased to a level at which the reinforcing

bars

2 and 3 yield. Further, the unevenness of the inner wall surface of the joint 1 is also effective against compressive stress transmitted through the

bars

2 and 3. That is, it is possible to dramatically increase the force at which compression yield occurs.

As shown in FIG. 2B, the joint 1 is provided with two through holes 10 through which the inside and the outside of the pipe are inserted. The through hole 10 is formed in the vicinity of the ends of the

bars

2 and 3. The through hole 10 is provided in order to insert an adhesive into the pipe or to discharge the air in the pipe to the outside.

As shown in FIG. 3A, the joint 1 is used in a form incorporated in the construction member 100. The construction member 100 is a wood-based square member made of laminated lumber or lumber. As shown in FIGS. 3A and 3B, the construction member 100 is provided with about six elongated holes 50 extending in the longitudinal direction. In each of the long holes 50, the bar 2 (deformed bar) for bending reinforcement of the construction member 100 is inserted. The joint 1 is incorporated in the vicinity of both ends of the same slot 50. The end of the bar 2 is inserted into the joint 1 halfway. The joint 1 is fixed to the construction member 100 with the other end being able to insert a joining bar 3 for joining with another construction member 100, that is, with the long hole 50 opened to the outside. Yes.

As shown in FIG. 3C, the bar 2 is inserted into the joint 1 inserted into the construction member 100 up to the front side of the through hole 10 on the upper left side. The bar 2 is fixed to the joint 1 through an adhesive layer 4 made of an adhesive. In the joint 1, the left side of the through hole 10, that is, the portion where the bar 2 is not inserted, remains hollow.

Next, a method for manufacturing the joint 1 according to the embodiment of the present invention, a method for manufacturing the construction member 100, and a method for manufacturing a structure using the construction member 100 will be described. 4 and 5 show the flow of these manufacturing methods.

As shown in FIG. 4, first, a core rod is created (step S1). As shown in FIG. 6A, the core 6 is composed of a vinyl chloride circular pipe 7 and a long piece 8. A part of the pipe 7 is cut along the axial direction (longitudinal direction), and the long piece 8 can be inserted into the cut portion. When the long piece 8 is inserted into the pipe 7, the radius of the core rod 6 becomes a predetermined size. When the long piece 8 is retracted from the pipe 7, the radius of the core rod 6 is greater than when the long piece 8 is inserted. Becomes smaller. The side surface of the pipe 7 does not have adhesiveness with the resin impregnated in the fiber sheet. In addition, although the edge part of the core rod 6 of the side shown in figure is opened, the edge part of the core rod 6 of the side which is not shown in figure becomes a closed plane.

Subsequently, as shown in FIG. P. Tapes such as the tape 9 and the transparent tape 11 are wound around the core rod 6 (step S2). First, the transparent tape 11 is spirally wound on the core bar 6 so as to overlap each other by about 5 mm. The transparent tape 11 has an adhesive surface on the outside. On the transparent tape 11, P.I. P. Tape 9 is wound. P. The P tape 9 is bonded to the transparent tape 11. P. P. The tape 9 is wound in a spiral shape so that the front and back do not overlap the side surface of the core rod 6. P. P. On the surface of the tape 9, a plurality of irregularities are formed in a mesh shape. In this embodiment, the steps S1 and S2 are performed on the side surfaces of the core rod 6 whose radius can be adjusted. P. By winding the tape 9, this corresponds to the sixth step of generating the shaft 12.

Subsequently, the fiber layer 1A is formed (step S3). Here, as shown in FIG. 6C, the fiber layer 1 </ b> A is formed by winding a fiber sheet (resin impregnation) 2 </ b> A whose fiber direction is the axial direction around the side surface of the shaft 12.

Subsequently, the fiber layer 1B is formed (step S4). Here, as shown to FIG. 6D, the fiber layer 1B is formed by winding the fiber sheet (resin impregnation) 2B whose fiber direction is the circumferential direction on the fiber layer 1A.

Subsequently, the resin is cured by pressing from the outside (step S5). Thereby, as shown to FIG. 7A, the coupling 1 which consists of the two

fiber layers

1A and 1B wound around the shaft rod 12 is formed. In this embodiment, steps S3, S4, and S5 cure the resin while fixing the

fiber sheets

2A and 2B impregnated with the resin around the side surface of the shaft rod 12 on which a plurality of irregularities are formed. This corresponds to the first step of creating the tubular joint 1 composed of the

fiber sheets

2A and 2B impregnated with the cured resin.

Subsequently, the radius of the shaft rod 12 (core rod 6) is adjusted so that the radius becomes smaller (step S6). Here, the long piece 8 is removed from the pipe 7 in the axial direction, and the radius of the shaft 12 (core rod 6) is reduced as shown in FIG. 7B. The diameter of the shaft rod 12 is such a size that the shaft rod 12 can be extracted without resistance and the adhesive does not enter the gap between the shaft rod 12 and the joint 1. In the split part of the pipe 7, P. Since the tape 9 and the like are wound, the adhesive described later does not flow into the pipe. Here, P.I. When the P tape 9 is attached to the fiber layer 1A, the P.P. P tape 9 is peeled off from fiber layer 1A. P. P. The tape 9 has low adhesion to the epoxy resin and is wound in a spiral shape, so that it can be easily peeled off. For this reason, the right and left halves of the shaft rod 12 in FIG. It is desirable to separate the P tape 9.

Subsequently, the shaft rod 12 is extracted halfway (step S7). Here, as shown in FIG. 7C, the shaft rod 12 is extracted to the left side. That is, in this embodiment, steps S6 and S7 correspond to the second step of extracting the shaft 12 from one end of the joint 1 halfway. Here, a through hole 10 is formed in the joint 1. Two through holes 10 are formed at the end of the shaft rod 12 and the back side of the portion where the shaft rod 12 is not inserted.

Subsequently, as shown in FIG. 5, the bending-reinforcing bar 2 is inserted into the portion from which the shaft bar 12 is extracted (step S8). Here, as shown in FIG. 7D, the bar 2 is inserted from the right end where the shaft bar 12 is extracted.

Subsequently, an adhesive such as an epoxy resin is injected into the portion where the bending reinforcing bar 2 is inserted through the one through hole 10 and cured to form the adhesive layer 4 (step S9). As shown in FIG. 7E, an adhesive layer 4 is formed between the bar 2 and the joint 1. Thereby, the bar 2 is fixed to the joint 1. That is, in this embodiment, in steps S8 and S9, the joint 1 is sealed with an adhesive in a state where the bar 2 as the first bar for bending reinforcement is inserted from the other end of the joint 1. This corresponds to the third step of fixing the material 2 to the joint 1.

Subsequently, the shaft rod 12 is completely extracted from the end of the joint 1 (step S10). Thereby, as shown to FIG. 7F, the space in which the bar 2 is not inserted in the coupling 1 is formed. That is, in this embodiment, step S10 corresponds to the fourth step of completely extracting the shaft rod 12 from one end of the joint 1.

Subsequently, the joint 1 and the bar 2 are fixed to the flat groove (step S12). As shown in FIG. 8, the flat plate 20 has three grooves 21 formed in the longitudinal direction. The joint 1 and the bar 2 are inserted into each groove 21, and an adhesive such as epoxy is filled in the groove 21, so that the joint 1 and the bar 2 are fixed. Here, the through hole 10 provided in the joint 1 (the through hole 10 on the side where the bar 2 is not provided) and the through hole 10 opened in the flat plate 20 are aligned, and their positions are adjusted. The joint 1 is installed such that the two match. That is, in this embodiment, step S12 corresponds to the eighth step of forming the through hole 10 that passes through the inner surface of the joint 1 and the outer surface of the construction member 100 to which the joint 1 is fixed.

Subsequently, the groove portion 21 is also filled with an adhesive and closed, and after the adhesive is cured, the flat plate 20 is formed. Subsequently, the construction member 100 is created by sticking the flat plate 20 to the laminated lumber or lumber (step S13). FIG. 3A shows the construction member 100 created in this way. As shown in FIG. 3A, the joint 1 is inserted and fixed to both ends of the bar 2. Thereby, the groove part 21 becomes the long hole 50. That is, in this embodiment, in steps S12 and S13, the joint 1 and the bar 2 can be inserted in a state where one end of the joint 1 can be inserted into the bar 3 for joining to join the other construction member 100. This corresponds to the fifth step of fixing to the wooden construction member 100.

The construction member 100 is joined to another construction member 100 and used as a beam. As shown in FIG. 9, the two construction members 100 are joined through the joining bar 3.

Referring back to FIG. 5, the joining bar 3 is inserted into the joint 1 (step S14). Here, as shown in FIG. 10, the joining bar 3 for joining with another construction member 100 is inserted into the long hole 50 of the construction member 100.

Subsequently, the bar 3 for joining is inserted into another construction member 100 (step S15). In this way, as shown in FIGS. 11A and 11B, the two construction members 100 are connected via the bar 3. That is, in this embodiment, steps S <b> 14 and S <b> 15 correspond to the ninth step of inserting the bar 3 for joining with another construction member 100 from one end of the joint 1.

Subsequently, an adhesive is injected from the through hole 10 (step S16). As shown in FIG. 12, the adhesive injected from the through hole 10 of one construction member 100 flows through the joint 1 as indicated by an arrow, and a joining bar 3 is further inserted from the joint 1. It enters the slot 50 and reaches the other construction member 100. The air that was present in the joint 1 and the long hole 50 escapes from the through hole 10 of the other construction member 100, and then is filled with an adhesive. When the adhesive filled in the joint 1 and the long hole 50 is cured, the joining of the two construction members 100 is completed. In this embodiment, step S16 corresponds to a tenth step of injecting an adhesive from the through hole 10 to fix the joint 1 and the bar 3.

By the way, the joining state of the construction member 100 is not limited to that described above. For example, as shown in FIGS. 13A and 13B, the joining rod 3 can be passed through the elongated hole 60 of the column member 101, and the two construction members 100 as beams can be joined via the column member 101. .

As described above in detail, the tubular joint 1 according to this embodiment is a simple method in which the

fiber sheets

2A and 2B are wound around the shaft rod 12 having a plurality of irregularities formed on the side surface and the resin is cured. It is formed. Further, since the joint 1 is formed of the

fiber sheets

2A and 2B, it is small and lightweight. Furthermore, since a plurality of irregularities are formed on the inner surface of the joint 1, a high bonding force can be obtained. That is, according to this embodiment, a plurality of projections and depressions are formed on the inner surface, and the joint 1 that is lightweight and has high joint strength can be manufactured by a simple method.

Embodiment 2. FIG.
The inner surface of the joint 1 according to Embodiment 1 is the P. Reticulated irregularities were formed using tape 9. However, the present invention is not limited to this. The inner surface of the joint 1 may be formed with spiral irregularities.

14, in this embodiment, a spiral thread groove is formed on the side surface of the shaft 12 as shown in FIG. The unevenness formed on the inner surface of the joint 1 is along a spiral thread groove formed on the side surface of the shaft rod 12. This shaft rod 12 also has non-adhesiveness to the resin impregnated in the

fiber sheets

2A and 2B. In this way, the shaft rod 12 can be extracted from the joint 1 while rotating the shaft rod 12 along the thread groove.

The joint 1, the construction member 100, and the structure manufacturing method in this embodiment are the same as those in the above-described embodiment (see FIGS. 4 and 5). In steps S7 and S10, after the resin impregnated in the

wound fiber sheets

2A and 2B is cured, the shaft rod 12 can be extracted from the joint 1 by rotating the shaft rod 12 along the thread groove. it can.

Thus, in this embodiment, spiral irregularities are formed on the inner surface of the joint 1 along the thread groove of the shaft 12. Due to the unevenness, the bonding force between the inserted bar 2 and the bar 3 is improved. In this embodiment, instead of the steps S1 and S2 of FIG. 4, the shaft rod 12 having spiral irregularities formed on the surface is formed prior to the formation of the fiber layer 1A (step S3). This generation step corresponds to a seventh step of forming a helical thread groove on the side surface of the shaft 12.

The shaft rod 12 according to this embodiment can be reused as it is even after one joint 1 is created. Therefore, it is possible to create a plurality of joints 1 with a single shaft rod 12. Thereby, the productivity of the joint 1 is improved.

The construction member 100 according to the above embodiment can be applied not only to a beam but also to a pillar material. For example, as shown in FIGS. 15A, 15B, 16A, and 16B, the construction member 100 can be joined to the reinforced concrete foundation 102 as a column base. In this case, as shown in FIG. 15A and FIG. 15B, first, the bar 3 for joining is inserted and fixed to the construction member 100, and then the bar is inserted into the vertical hole 70 of the reinforced concrete foundation 102 filled with the non-shrink grout. 3 may be inserted to fix the construction member 100 on the reinforced concrete foundation 102.

Further, as shown in FIGS. 16A and 16B, after joining the bar 3 for insertion into the vertical hole 70 of the reinforced concrete foundation 102 and filling the non-shrink grout to fix the bar 3, the bar 3 May be inserted into the long hole 50 of the construction member 100 and the adhesive may be poured from the through hole 10. In this case, it is necessary to form the air vent hole 71 through which the long hole 50 and the outside are inserted in the construction member 100 and to discharge the air in the long hole 50 to the outside.

In the above embodiment, a plurality of irregularities are formed on the entire inner surface, but a plurality of irregularities may be formed on a part of the inner surface.

In the above embodiment, the number of joints 1 to be inserted into the construction member 100 is six pairs, but the present invention is not limited to this. The number of pairs may be five or seven or more. The number of joints 1 can be arbitrarily set depending on the mating partner.

In the above embodiment, the

bars

2 and 3 are deformed bars, but other bars such as an aramid rod may be used. In short, a bar made of a material harder than a construction member may be used.

In the above embodiment, the joint 1 is formed using a carbon fiber sheet, but the joint 1 may be formed using another fiber sheet. For example, aramid fiber, Kevlar, Dyneema or the like may be used.

In the above embodiment, the resin impregnated in the carbon fiber sheet is an epoxy resin, but the present invention is not limited to this. Polyamide resins, phenol resins, and resorcinol resins may be used.

In the above embodiment, each of the

fiber sheets

2A and 2B is wound four times, but is not limited thereto. 1 winding may be sufficient and 2 winding and 3 winding may be sufficient. Also, it may be 5 or more.

In the above embodiment, the construction member 100 is a wood-based member, but the present invention is not limited to this. For example, a concrete member such as precast concrete may be used.

The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present application claims priority based on Japanese Patent Application No. 2015-7576 filed on January 19, 2015, and the specification of Japanese Patent Application No. 2015-7576 is included in this specification. The claims and the entire drawing are incorporated by reference.

This invention is suitable for use as a joint in a structure such as a building or a bridge.

1 joint, 1A, 1B fiber layer, 2, 3 bar, 2A, 2B fiber sheet, 4 adhesive layer, 6 core rod, 7 pipe, 8 long piece, 9 P. P. (Polypropylene) tape, 10 through hole, 11 transparent tape, 12 shaft rod, 20 flat plate, 21 groove, 50, 60 long hole, 70 vertical hole, 71 air vent hole, 100 construction member, 101 pillar material, 102 reinforced concrete foundation

Claims

A tubular joint made of a fiber sheet impregnated with the cured resin is cured by fixing the resin sheet while winding the fiber sheet impregnated with the resin on a side surface of a shaft rod on which a plurality of irregularities are formed. A first step to create;
A second step of extracting the shaft rod halfway from one end of the joint;
In a state where the first bar for bending reinforcement is inserted from the other end of the joint, a third step of fixing an adhesive to the joint and fixing the first bar to the joint;
A fourth step of completely extracting the shaft rod from one end of the joint;
A fifth step of fixing the joint and the first bar to a wooden or concrete construction member in a state in which a joint bar for joining one end of the joint to another construction member can be inserted. When,
A method of manufacturing a structure including
Prior to the first step,
Including a sixth step of generating the shaft rod by winding a tape having a plurality of irregularities formed in a mesh shape on the side surface of the core rod capable of adjusting the radius and having non-adhesiveness to the resin;
In the second step,
Shortening the radius of the core rod and extracting the shaft rod;
The manufacturing method of the structure of Claim 1.
Prior to the first step,
Including a seventh step of forming a helical thread groove on a side surface of the shaft rod;
In the second step,
Extracting the shaft rod while rotating the shaft rod relative to the joint along the thread groove;
The manufacturing method of the structure of Claim 1.
An eighth step of forming a through hole that passes through the inner side surface of the joint and the outer surface of the construction member to which the joint is fixed;
A ninth step of inserting a second bar for joining with another construction member from one end of the joint;
A tenth step of injecting an adhesive from the through hole and fixing the joint and the second bar;
The manufacturing method of the structure as described in any one of Claim 1 to 3 containing this.
A tubular joint comprising a fiber sheet wound in a tubular shape, impregnated with a cured resin, and having a plurality of irregularities on the inner surface.
A fiber sheet wound in a tubular shape, impregnated with a cured resin, and formed with a plurality of irregularities on the inner surface;
A bending reinforcement rod inserted halfway through the fiber sheet;
An adhesive layer made of an adhesive encapsulated between the bar and the fiber sheet;
A bar with a joint.
A bar with a joint according to claim 6,
In a state in which a joining bar for joining with another construction member can be inserted into an end of the jointed bar, a wooden or concrete member that fixes the bar with the joint, and
Construction member comprising.