JP2645352B2 - Joint structure of column and beam in concrete structure and its assembling method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure between a column and a beam in a concrete structure and an assembling method thereof.

"Conventional technology and its problems" For example, when building a reinforced concrete structure,
Conventionally, the reinforcing bars at the joints of columns and beams are generally assembled on site.

However, the work of arranging the joint between the column and the beam in such a site is extremely troublesome because the work is required in a narrow place, and it is difficult to secure the accuracy (for example, the arrangement interval of the shear reinforcement). The improvement was awaited.

By the way, as a rebar arrangement alternative to on-site assembly,
A plurality of column main bars or beam main bars are bound by shear reinforcing bars (such as stirrups or stirrups) and assembled into a unit (column structural member, beam structural member) having a predetermined size. There is a construction method for constructing a column and a beam of a building while reassembling units of a column and a beam.

The work procedure of such a construction method will be described. First, a structural member for a column without a shear reinforcement at the upper end of one layer is built at the construction position, and then, at this upper end, two beams are the same. The connection units of the beam main reinforcement, which are assembled in advance so as to be orthogonal to each other on a plane, are suspended upward by a crane or the like. Then, the position of the connection unit of the beam main reinforcement suspended by a crane or the like is set so that the column main reinforcement and the beam main reinforcement intersect each other, and the column main reinforcement penetrates a gap formed by the beam main reinforcement. After the adjustment, the connection unit of the beam main reinforcement is gradually lowered to a predetermined position, and then the position is fixed by each main reinforcement and the auxiliary reinforcement.
In this way, the column main reinforcement is arranged between the plurality of beam main reinforcement connection units.

Thereafter, the structural member for the beam is connected to the connection unit of the beam main reinforcement, and the main reinforcement is connected by a joint. Then, after the concrete is cast, this is repeated to construct columns and beams of the reinforced concrete structure.

However, even with such a construction method, there is room for improvement in the following points, for example.

When arranging a column main bar between a plurality of beam main bars, the column main bar and the beam main bar are assembled so that the column main bar penetrates the gap formed by the beam main bar. In such a case, it is difficult to adjust the displacement, and the connection unit of the beam main reinforcement is difficult to drop to a predetermined position.

Since the upper end of the column main bar penetrates the gap formed by the beam main bar, it takes a long time to adjust the position of the connection unit of the beam main bar, and the danger to the worker who adjusts the position increases.

The present invention has been made in view of the above circumstances, and provides a joint structure between a column and a beam in a concrete structure and a method for constructing the same, which can perform a reinforcing work of a joint between a column and a beam in a short time and with high accuracy. The purpose is to provide.

Means for Solving the Problems Accordingly, a joint structure according to a first aspect of the present invention provides a column structural member assembled by a plurality of pillar main bars and a plurality of shear reinforcing bars, a plurality of beam main bars, and a plurality of shear reinforcing bars. A beam structural member assembled by streaks, and a connection member set at a predetermined position of the column structural member and connecting the beam structural member in an axial direction perpendicular to the length direction of the column structural member. The joint structure comprises two pairs of upper and lower joint members corresponding to the upper and lower beam main bars of each of the beam structural members, and the column structural members are arranged in a state where the two sets of joint members are crossed. Each of the joint members is inserted into a mesh formed by the column main reinforcement and the shear reinforcement of the column structural member, penetrates the column structural member, and both ends thereof The main beam reinforcement is A plurality of beam connecting main bars to be connected to each other, and these beam connecting main bars are provided only at one end side of the beam connecting hand bars, and are integrated in a state where the beam connecting main bars are arranged side by side while maintaining an interval substantially equal to the interval between the beam main bars. Further, the length of each beam continuous main reinforcing bar in the joint member is set such that both ends thereof protrude to both sides of the column structural member when the column structural member is penetrated. It is characterized by having been done. It is preferable that the column main bar, the beam main bar, the shear reinforcing bar, the beam connecting main bar, and the connecting bar are each formed by solidifying a continuous fiber with a resin material.

Further, the assembling method of the second invention is a method of pre-assembling a column structural member including a column main bar and a shear reinforcing bar and erecting the column structural member at the construction position, and a plurality of beams having beam main bars connected to both ends. Two pairs of upper and lower joint members are prepared by connecting and connecting the connecting main bars in a parallel state with a connecting bar provided only at one end side of the beam connecting main bars while maintaining an interval substantially equal to the interval between the beam main bars. In addition, the joint members are arranged in such a manner that the beam connecting main bars are arranged side by side in the horizontal direction, and the other end side of each beam connecting main bar is positioned at a position corresponding to the position of the upper and lower beam main bars of the beam to be constructed. By inserting into the mesh of the column main reinforcement and the shear reinforcement of the column structural member, the two structural members are crossed to penetrate the column structural member, and both ends of each beam connecting main reinforcement are respectively used for the column. On both sides of the structural member A step of projecting, and wherein said that includes a step of connecting each beam main reinforcement across each beam connection main reinforcement of the joint member.

According to the present invention, the setting position of the beam structural member can be determined by a simple operation of erecting the column structural member and inserting the joint member into the mesh between the column main reinforcement and the shear reinforcing bar. Since the beam structure can be joined through the fin, the workability and safety at the site can be improved, and the construction period can be shortened.

In addition, if each component (column main bar, beam main bar, shear reinforcing bar, beam connecting main bar, connecting bar, etc.) has a structure in which continuous fiber is covered with resin, the structural members for columns and beams can be reduced in weight. This is preferable because workability at the site can be further improved.

Example Hereinafter, a joint structure between a column and a beam in a concrete structure according to the present invention and a method of constructing the same will be described with reference to FIGS. In addition,
In one embodiment, an example in which the present invention is applied to the case where a joint located between a pillar located at the center of the inside of a structure and a beam connected to the pillar is constructed.

(I) Formation of pillar and beam structural members and joint members In the drawings, reference numeral 1 denotes a pillar structural member, 2 denotes a beam structural member, and 3 denotes a joint member.

The plurality of column structural members 1 extend in the up-down direction and are arranged side by side so as to be located on the sides of a square (12 in the embodiment).
The main columns 4 of the book) and the plurality of shear reinforcing bars 5 surrounding the column main bars 4 are assembled to a length corresponding to, for example, the height of one layer of the building. A connecting fastener (for example, a sleeve joint) is attached to the upper and lower ends of the column structural member 1, and the column structural member 1 having the same configuration is connected above and below the connecting fastener. ing.

The beam structural member 2 has a lattice shape in which a plurality of beam main reinforcing bars 6 extending in the length direction of the beam and arranged in parallel at intervals in the width direction are held at a predetermined interval by a plurality of connecting bars 7 and integrated. And a ring-shaped shear reinforcement 8 wound around the outer periphery of the beam unit 2a. In the case of the embodiment shown in FIGS. 3 to 5, the shear reinforcing bars 8 are attached in advance so that the outer periphery of the beam unit 2a is inserted, and after joining with the joint member 3,
They are arranged at regular intervals and are arranged on the outer periphery of the beam unit 2a. Further, the beam structural member 2 has a lap joint length L at both ends and is configured to be connected to the joint member 3.

Next, a joint member 3 for joining the beam structural member 2 to the column structural member 1 will be described. The joint member 3 includes a pair of upper and lower members, each of which penetrates vertically above and below the column structural member 1. The beam structural member 2 is connected to the upper and lower beam main reinforcements 6 of the beam structural member 2. In one embodiment, two pairs of upper and lower joint members 3 are provided, and the beam structural member 2 is connected to the column structural member 1. The connection structure A is connected in two axial directions perpendicular to the length direction.

The specific configuration of the joint member 3 is a plurality (four in the illustrated example) that are inserted in the mesh of the column main reinforcement 4 and the shear reinforcement 5 and are arranged in the width direction (horizontal direction) of the column structural member 1. ), And a plurality of beam connecting main bars 9 which are provided only at one end side of the beam connecting main bars 9 and which are connected and fixed in a state of being parallel to each other (2 in the illustrated example).
It has a planar shape composed of the connection bars 10 of the book). When the insertion end 9a is inserted into the mesh between the column main reinforcement 4 and the shear reinforcement 5, the beam connecting main reinforcement 9 has its own length such that both ends protrude to both sides of the column structural member 1. Is set. Further, the interval between the plurality of beam connecting main bars 9 arranged in parallel is set substantially equal to the interval between the beam main bars 6.

Here, the main reinforcing bars 2, 6, 9 constituting the column structural member 1, the beam structural member 2, and the joint member 3, the shear reinforcing bars 5, 8, and the connecting bars 7, 10 are shown in FIG. 7 and FIG. As shown in FIG. 8, a plurality of continuous fibers 21 bound by a resin material 20
A fiber bundle T made of a material is used as a material, and is formed by solidifying the material. More specifically, taking the column structural member 1 as an example, a fiber bundle T composed of a plurality of aligned continuous fibers 21 is three-dimensionally arranged to form the column main reinforcing bar 4, and is reinforced by shearing. The cross section is formed by the streaks, and the fibers 21 of the fiber bundle T are bound by the resin material 20.

The intersection of the fiber bundles T (the intersection of the column main reinforcement 4 and the shear reinforcement 5) includes a fiber group extending in one direction,
As shown in FIG. 7, a fiber group extending in a direction orthogonal to this has a cross-sectional shape in which three or more layers are alternately laminated.

In addition, since these basic structures are the same also about the structural member 2 for beams and the joint member 3, description about these is abbreviate | omitted.

Column structural member 1, beam structural member 2, joint member 3
As the continuous fiber 21 that forms the main component, glass fiber or carbon fiber having light weight and high strength is suitable, but if necessary, other fibers such as synthetic resin fiber, ceramic fiber, and metal fiber are used. Is also good. These fibers may be used in an appropriate combination.

As the resin material 20 for binding the continuous fibers 21 of the fiber bundle T, for example, a vinyl ester resin having good adhesiveness to the continuous fibers 21 and itself having sufficient strength is preferably used. Another resin material may be used in accordance with the type of the continuous fiber 21. As other resin materials, unsaturated polyester resin, epoxy resin, phenol resin and the like can be mentioned.

The ratio between the resin material 20 and the continuous fibers 21 is appropriately determined in consideration of the type and strength of the continuous fibers 21 and the usage of the structural members 1 and 2 and the like.
When 11 is a glass fiber and the resin material 20 is a vinyl ester resin, the volume of the fiber 21 is about 30 to 70%, and when the fiber 21 is a carbon fiber, for example, about 20 to 60%. It is desirable to consider. When the ratio of the continuous fibers 21 is equal to or less than the above, the strength of the structural member 1 is significantly reduced. On the other hand, when the ratio of the continuous fibers 21 is increased, a reinforcing member having high strength is obtained. Then, a relatively expensive material such as carbon fiber is not preferable in terms of economy.

In order to form the column structural member 1, the beam structural member 2, and the joint member 3 as described above, for example, the column structural member 1
In the case of the above, the continuous fibers 21 impregnated with a resin (for example, a cold-setting fluid resin) are hooked on pins or the like provided at positions corresponding to the upper and lower ends of the pillar main bars in a so-called one-stroke manner. Then, continuous fibers 21 impregnated with resin are wound at positions corresponding to the shear reinforcing bars. Then, at these intersections, the fiber groups are always alternately overlapped by at least three or more layers. At this time, it is necessary to apply sufficient tension to the continuous fibers 21 to maintain the linearity.

Here, the supply of the continuous fibers can of course be performed manually, but a method is adopted in which the passage order is automatically executed by mechanical means that operates based on a preset program.

In addition, the distance between the column main reinforcements 4 or the distance between the shear reinforcements 5 constituting the column structural member 1 is determined by the size of the column to be constructed, the necessary strength, and the like. It also includes braids and braids.

In addition, it is carried out similarly to the above-mentioned structural member 1 for columns based on the manufacturing method of the adopted structural member 2 and the joint member 3.

(Ii) Installation and Fixing of Column Structural Member As shown in FIG. 1, the column structural member 1 assembled by the column main reinforcement 4 and the shear reinforcement 5 is erected at a predetermined enforcement position. At this time, the pillar structural member 1
Since the continuous fiber 21 is made by solidifying the continuous fiber 21 with the resin material 20, it is extremely lightweight and easy to handle during transportation, so that it can be performed manually without using a crane or the like.

(Iii) Setting of Joint Member Next, the joint member 3 is aligned with the upper and lower positions of the beam to be constructed, and the tip (insertion end) 9a of the beam connecting main bar 9 is connected to the column main bar 4 as shown by arrow A in FIG. And the shear reinforcement 5 are inserted into the mesh, and both ends thereof are projected to both sides of the column structural member 1, and this is fixed to the column structural member 1. Thereby, the connection structure A which joins the beam structural member 2 to the column structural member 1 in two axial directions perpendicular to the length direction of the column structural member 1.
Is set (see FIG. 2). At this time (when inserting the beam connecting main reinforcing bar 9), since the beam connecting main reinforcing bar 9 is formed in a factory with higher precision than a plurality of continuous fibers bound by a resin material, the member position is reduced due to manufacturing errors. Do not interfere with each other, so that the insertion operation can be easily performed, and the joint member 3
The structure itself has a lightweight structure in which the continuous fibers 21 are bound by the resin material 20, and thus has advantages such as improved transportation and implementation on site. Further, the plurality of beam connecting main beams 9 forming the joint member 3 are integrated by connecting bars 10, and the respective beam connecting main bars 9 are fixed in parallel with each other in accordance with the interval of the plurality of beam main bars 6. Therefore, the beam connecting main reinforcement 9 can be easily installed and positioned.

(Iv) Construction of the beam structural member Then, the beam structural member 2 is bridged between the respective structural members A of the column structural member 1 built adjacent to each other to form the structural member A. The main beam 6 of the beam structural member 2 is joined to the joint member 3 to be formed. This joining is performed according to the following procedure.

That is, as shown in FIG. 4 and the like, ring-shaped shear reinforcing bars 8 are inserted around the upper and lower beam units 2a,
The beam main reinforcement 6 of the beam unit 2a is attached to the beam connection main reinforcement 9 of the joint member 3, and these are integrally bound.

Then, the shear reinforcing bars 8 on the outer periphery of the beam unit 2a are moved as shown by arrow B in FIG. 4 and positioned with a certain interval therebetween, and are adhered to the outer periphery of the beam unit 2a.

In the above operation, all the components (beam unit 2a, shear reinforcement 8, etc.) that form the beam structural member 2 are connected to the continuous fiber 21.
Is formed as a material, the beam unit 2a can be easily joined to the joint member 3 by input,
In addition, the fixing of the shear reinforcement 8 can be easily performed.

In addition, as a method of joining and assembling the beam unit 2a and the joint member 3 or the shear reinforcing bar 8, it is only necessary to bind using a binding iron wire or the like in the same manner as the conventional reinforcing bar arrangement method.

In this way, after joining the structural member 3 for beams to the structural member 1 for columns, the concrete is poured into the formwork,
The pillar and the beam can be integrally cast and formed. In the above, it is also possible to omit the formwork of the column structural member 1 and cast concrete of the column by shortening the space between the shear reinforcing bars 5 and reducing the size of the mesh with the main bar. It is possible.

The joint between the column and the beam is constructed as described above. In this construction method, the joint can be extremely easily performed. That is, since each member has a lightweight structure in which the continuous fibers 21 are bound by the resin material 20, the setting work of the beam structural member 1 and the like can be easily performed manually without using a crane or the like. This is because it can be carried out. Moreover, the joining is a simple operation of inserting the joint member 3 into the column structural member 1 and fixing the beam structural member 2 via the joint member 3. The column main reinforcement 4, the beam main reinforcement 6, etc. Since all are unitized in advance, the workability and transportability at the site are good, and the joining operation can be easily performed.

In particular, since the joint member 3 has a planar shape in which the beam connection main reinforcement 9 is connected in parallel by the connection reinforcement 10, the workability when setting it to the column structural member 1 is extremely high. It is excellent. That is, when the beam connecting main bars 9 are individually (one by one) inserted into the column structural member 1 without being connected by the connecting bars 10, not only is the time and labor required but also each beam is greatly increased. Connecting main bar 9
However, by connecting the beam connecting main reinforcements 9 in parallel with the continuous reinforcements 10 in advance as in this embodiment, the insertion can be performed collectively. The distance between the beam connecting main bars 9 is
Is set equal to the spacing of any of the beam main reinforcements 6
Is simply attached to the corresponding beam-connecting main reinforcement 9, so that all the other beam-main reinforcements 9 are naturally attached, so that the positioning operation of the joint member 3 can be performed extremely easily. Thus, all the beam connecting main bars 9 and the beam main bars 6 can be structurally and strongly connected to each other by the lap joint. It should be noted that a pair of upper and lower joint members 3 may be connected in advance to form a three-dimensional joint member corresponding to the cross-sectional shape of the structural member 2 for beams. Since it increases and becomes bulky, handling at the time of transportation and construction becomes extremely inconvenient, and it becomes impossible to carry it manually, which is not preferable.

Further, since each of the members (the column structural member 1, the beam structural member 2, and the joint member 3) has a structure in which the continuous fibers 21 are covered with the resin material 20, the fibers which are the main strength members are It has high corrosion resistance and is extremely advantageous as a structural material. Further, since the surface is formed of a resin as described above, there is an advantage that rough surface processing for improving adhesion to concrete can be easily performed.

In the above-described embodiment, the pillar structural member 1 has been described as having a size corresponding to the height of one layer of the building. However, the pillar structural member 1 has a size corresponding to two or three layers. May be assembled. Further, the joint member 3 can be easily attached to the column structural member 1 before the column structural member 1 is built at the site, and such a configuration can further shorten the construction period. .

FIG. 6 shows another embodiment of the joining part assembling method of the present invention. In this embodiment, the beam structural member 2 is
A plurality of beam reinforcing bars 6 and a plurality of shear reinforcing bars 8 surrounding the beam reinforcing bars 6 are assembled, and only the shear reinforcing bars 8 located at a lap portion (lap joint portion) with the joint member 3 are used. Without fixing it.

In this case, as a work procedure, first, a joint member A is provided by inserting the joint member 3 into one of the adjacent columnar structural members 1 (right side in FIG. 6). The beam structural member 2 is fitted to remove the interference of the other connection member A, and then the joint member 3 is set on the other connection member A and the connection member A is formed here. Then, the beam structural member 2 is fitted into the joint structure A from the side of the joint structure, and these are integrally bound. Then, after setting the shear reinforcing bars 8 at a predetermined interval on the wrap portion, the shear reinforcing bars 8 are united.

According to such a construction method, since the beam structural member 2 can be joined to the pillar structural member 1 in a state where most of the beam structural member 2 is formed, on-site work can be simplified and the accuracy can be improved. .

In each of the above-described embodiments, the pillar structural member 1, the beam structural member 2, the joint member 3, and the like are formed by hardening fibers with a resin material. However, in the present invention, these materials are the same as those of the embodiment. It is not limited, and for example, as in the case of the column structural member 1 shown in FIG. 9, each component (the column main reinforcement 4, the shear reinforcement 5, etc.) may be composed of a reinforcing bar or the like.

Further, as shown in FIG. 10, the joint member 3 may be constituted by a reinforcing bar or the like.

[Effects of the Invention] As described above, in the joint structure of a column and a beam according to the first invention, a column structural member assembled by a plurality of column main bars and a plurality of shear reinforcing bars, a plurality of beam main bars and a plurality of beam main bars. And a connection structure for connecting the beam structural member in an axial direction perpendicular to the length direction of the column structural member set at a predetermined position of the column structural member by the shear reinforcing bar of the present invention. The joint structure comprises two sets of a pair of upper and lower joint members corresponding to the upper and lower beam main bars of each of the structural members for beams, and the two sets of joint members are crossed with each other. Each of the joints is inserted into a mesh formed by a column main reinforcing bar and a shear reinforcing bar of the column structural member, and each of the joints penetrates the column structural member. The beams at its ends A plurality of beam connecting main bars to which the main bars are respectively connected, and in a state where these beam connecting main bars are provided only at one end side of these beam connecting main bars and are arranged side by side while maintaining a space substantially equal to the interval between the beam main bars. Further, the length of each beam connecting main bar in the joint member is such that both ends thereof protrude to both sides of the column structural member when the column structural member penetrates the column structural member. Because it is set to, it is possible to easily and firmly join the beam structural member to the column structural member, and to perform the on-site construction work easily and with good construction accuracy, and There is an effect that there is no danger that the arrangement of reinforcing bars or the like will not occur.

Further, in the assembling method according to the second invention, a step of pre-assembling a column structural member including a column main reinforcing bar and a shear reinforcing bar in advance and erected at the construction position, and a plurality of beam main reinforcing bars connected to both ends. Two pairs of upper and lower joint members are formed by connecting the beam connecting main bars in a parallel state by connecting the connecting bars provided only on one end side of the beam connecting main bars while maintaining an interval substantially equal to the interval between the beam main bars. Prepare the joint members in such a manner that the beam connecting main reinforcements are arranged in a horizontal horizontal direction and position the other end of each beam connecting main reinforcement at a position corresponding to the position of the two upper and lower beam main reinforcements of the beam to be constructed. By inserting a mesh between the column main reinforcement and the shear reinforcement of the column structural member, the column structural member is penetrated in a state where the two sets of joint members are crossed, and both ends of each beam connecting main reinforcement are respectively connected to the columns. For structural members Since the method includes a step of projecting laterally and a step of connecting the beam main reinforcements to both ends of each beam connection main reinforcement of these joint members, the positioning of the set position of the beam structural member is performed by a simple construction work. Can be
The beam structure can be easily and accurately joined through the joint member, workability and safety at the site can be improved, and the construction period can be shortened.

In particular, in both the first invention and the second invention,
Since the joint member has a planar shape in which the beam connection main bars are connected in parallel by connecting bars, and the interval between the beam connection main bars is set to be approximately the same as the beam main bar interval, the joint member is used. In addition to being extremely easy to handle and position when setting to the column structural member, the beam connecting main bars can be inserted individually without connecting them by connecting bars, or a pair of upper and lower joints Since the members are not bulky as compared with a case where the members are connected in advance to form a three-dimensional joint member, it is extremely advantageous in terms of transportation and workability.

In addition, if each component (column main bar, beam main bar, shear reinforcing bar, beam connecting main bar, connecting bar, etc.) has a structure in which continuous fiber is covered with resin, the structural members for columns and beams can be reduced in weight. Therefore, the workability on site can be further improved, which is very preferable.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of a column structural member and a joint member, FIG. 2 is a perspective view showing a state where they are assembled, and FIG. FIG. 4 is a side view, FIG. 5 is a plan view, and FIG. 6 is a side view for explaining another embodiment of the assembling method of the present invention. , FIG. 7 is a cross-sectional view at the intersection of the fiber bundles, FIG. 8 is a cross-sectional view of the fiber bundles, FIG. 9 is a perspective view in which the column structural member is constituted by a reinforcing bar, and FIG. FIG. DESCRIPTION OF SYMBOLS 1 ... pillar structural member, 2 ... beam structural member, 3 ... joint member, 4 ... beam main reinforcing bar, 5, 8 ... shear reinforcing bar, 6 ... beam main reinforcing bar, 7 ... connecting bar, 2a ... Beam unit, 9 ... Beam connection main reinforcement, 20 ... resin material, 21 ... continuous fiber, T ... fiber bundle.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tadashi Fujisaki 2- 16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. Construction Co., Ltd. (56) References JP 62-1061 (JP, B2)

Claims (3)

(57) [Claims] 1. A structural member for a column assembled by a plurality of main bars and a plurality of shear reinforcing bars, a structural member for a beam assembled by a plurality of main bars and a plurality of shear reinforcing bars, and the structural member for a column A connection structure which is set at a predetermined position and connects the beam structural member in an axial direction perpendicular to the length direction of the column structural member, wherein the connection structure is a structure of each of the beam structural members. Two sets of a pair of upper and lower joint members corresponding to the upper and lower beam main bars are provided, and the column structural member is made to penetrate in a state where the two sets of joint members are crossed. A plurality of beam connecting main bars that are inserted into a mesh formed by the column main bars and the shear reinforcing bars of the column structural member, penetrate the column structural member, and are connected to the beam main bars at both ends thereof, These beams A connecting bar that is provided only at one end of the main bar and integrates the beam connecting main bars in a state where they are arranged side by side while maintaining an interval substantially equal to the interval between the beam main bars. The length of each beam connecting main bar in the member is set so that both ends thereof are projected to both sides of the column structural member when penetrating the column structural member. Beam joint structure. 2. The column main bar, the beam main bar, the shear reinforcing bar, the beam connecting main bar, and the connecting bar are each formed by solidifying continuous fibers with a resin material. Item 4. A column-beam joint structure in a concrete structure according to item 6. 3. A step of pre-assembling a column structural member composed of a column main bar and a shear reinforcing bar, and erecting the column at a construction position, and connecting a plurality of beam connecting main bars connected to beam ends at both ends. A pair of upper and lower joint members which are connected and integrated in a parallel state while maintaining an interval substantially equal to the interval between the beam main bars by connecting bars provided only on one end side of the connecting main bar are provided.
The other end of each beam connecting main bar is set at a position corresponding to the position of the upper and lower two-step beam main bars of the beam to be constructed. Into the mesh of the column main reinforcement and the shear reinforcement of the column structural member, thereby penetrating the column structural member in a state where the two sets of joint members are crossed to each other so that both ends of each beam connecting main reinforcement are respectively A step of projecting to both sides of the column structural member; and a step of connecting the beam main bars to both ends of each beam connecting main bar of the joint member. How to assemble the joint.