JP2014055517A - Precast beam-column joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a precast beam-column joint structure which can suppress complication of a structure of a precast beam-column connection part, can ensure joint strength between a precast beam-column connection part and a precast beam member, and can eliminate the necessity of placing concrete at a job site.SOLUTION: A beam reinforcement 40 is laterally projected from a precast beam-column connection member 52. A sleeve 58, into which the beam reinforcement 40 is inserted to be fixed and coupled, is embedded in one end in the longitudinal direction of a precast beam member 54.

Description

  The present invention relates to a precast column beam joining structure in which a precast column member and a precast beam member are joined via a precast column beam joint.

  A joint structure between a precast column member and a precast beam member that eliminates the need for placing concrete on site is known (see, for example, Patent Document 1). In this joint structure, the joint (sleeve (hollow tube)) is embedded in the precast column beam joint, and the beam rebar (beam main reinforcement) protrudes from the precast beam member to the precast column beam joint. The precast column member and the precast beam member are joined to each other via the precast column beam joint by moving the beam member in the lateral direction and fixing and joining the beam main bar and the joint.

  Here, in the precast column beam joint, column reinforcement (column main reinforcement) and beam reinforcement are densely arranged, and further, shear reinforcement reinforcement is arranged at a fine pitch, thus securing the installation space for the sleeve It is hard to do. As shown in FIG. 4, when the sleeve 38 is embedded in the precast column beam joint 20, it is possible to sufficiently secure the length of the L-shaped beam reinforcing bar 1 fixedly coupled to the sleeve 38. It is difficult to secure sufficient fixing strength between the beam rebar 1 and the concrete.

JP 2004-278257 A

  The present invention has been made in consideration of the above facts, and while suppressing the complexity of the structure of the precast column beam joint, it is possible to ensure the joint strength between the precast column beam joint and the precast beam member. It is an object of the present invention to provide a precast column beam joining structure that is possible and can eliminate the need for placing concrete on site.

  The joint structure of precast column beams according to the first aspect of the present invention is a precast column beam joint structure in which a precast column member and a precast beam member are joined via a precast column beam joint, The joint portion includes a beam main bar protruding to the precast beam member side, and the precast beam member is fixed to the beam main bar by moving in a lateral direction relative to the precast column beam joint portion. It is characterized by comprising joint means to be coupled.

  In the precast column beam joint structure according to the first aspect, the beam main bar protrudes from the precast column beam joint to the precast beam member side, and the precast beam member including the joint means is connected to the precast column beam joint. By relatively moving in the horizontal direction, the beam main bar and the joint means are fixedly coupled, and thus the precast column member and the precast beam member are joined via the precast column beam joint.

  Here, by providing joint means on the precast beam member and projecting the beam main bar from the precast column beam joint, the precast column beam joint is compared with the case where the joint means is provided on the precast column beam joint. The structure of the part can be simplified, and the anchor strength of the beam main bars embedded in the precast column beam joints and fixedly connected to the beam main bars on the precast beam member side via joint means to a sufficient level It becomes possible to raise.

  Therefore, it is possible to suppress the complication of the structure of the precast column beam joint and to secure the bonding strength between the precast column beam joint and the precast beam member. Also, it is not necessary to place concrete on site.

  The precast column beam joint structure according to the second aspect of the present invention is the precast column beam joint structure according to the first aspect, wherein the precast beam members are provided on both lateral sides of the precast column beam joint. The beam main reinforcement protrudes from the precast column beam joint to the precast beam member side provided on both sides of the side.

  In the precast column beam joint structure according to the second aspect, the precast beam members provided on both lateral sides of the precast column beam joint are moved laterally relative to the precast column beam joint. As a result, the joint means and the beam main bar are fixedly coupled, and thus the precast column beam joint and the precast beam members on both sides of the side are joined.

  Here, by making the beam main bars protrude to both sides of the precast column beam joint, and by providing joint means on the precast beam members on both sides, the structure of the precast column beam joint is complicated. In addition, it is possible to join two or more precast beam members to the side of the precast column beam joint portion while suppressing the fixing strength between the main bar and the concrete in the precast column beam joint portion. Therefore, the present invention can be applied to a joint structure between a middle column provided with beams on both sides and the beam.

  The precast column beam joint structure according to the third aspect of the present invention is the precast column beam joint structure according to the first aspect, wherein the precast beam member is provided on one side of the precast column beam joint portion. The beam main reinforcement protrudes from the precast column beam joint to the side of the precast beam member provided on the side one side.

  In the precast column beam joint structure according to the third aspect, the precast beam member provided on one side of the precast column beam joint is moved in the lateral direction relative to the precast column beam joint. As a result, the joint means and the beam main bar are fixedly coupled to each other, so that the precast column beam joint and the precast beam member on one side of the side are joined. Therefore, the present invention can be applied to a joint structure between an end column and a beam arranged at an outer end portion of a building structure.

  The precast column beam joint structure according to the fourth aspect of the present invention is the precast column beam joint structure according to any one of the first to third aspects, wherein the precast column beam joint is It is characterized by being a separate member from the precast column member.

  In the precast column beam joint structure according to the fourth aspect, the precast column member and the precast beam member are joined via a precast column beam joint portion that is a separate member from the precast column member.

  The precast column beam joint structure according to the fifth aspect of the present invention is the precast column beam joint structure according to any one of the first aspect to the third aspect, and includes a plurality of the precast column beam joints. A plurality of joint-integrated precast column members integrally formed with the precast column members are joined in the vertical direction.

  In the joint structure of precast column beams according to the fifth aspect, a plurality of joint-integrated precast column members integrally formed with the precast column members are joined in the vertical direction. Thereby, the number of parts of a precast molded product and the number of joints can be reduced, and cost can be reduced. Moreover, the man-hour about the joining operation | work of the precast column member and the precast column beam joint part in a construction site can be reduced.

  The joint structure of the precast column beam according to the sixth aspect of the present invention is the joint structure of the precast column beam according to the fifth aspect, wherein the joint portion of the joint-integrated precast column members is arranged above and below the joint portion. It arrange | positions in the center part of the height direction between the said precast beam members of both sides, It is characterized by the above-mentioned.

  In the joint structure of precast column beams according to the sixth aspect, the joint portion between the joint-integrated precast members is disposed in the center in the height direction between the precast beam members on both the upper and lower sides of the joint portion. Here, since the central portion in the height direction and the antipolar point of the bending moment generated in the precast column member coincide or approximate, the bending moment generated in the joint can be effectively reduced, and the joining state in the joint can be reduced. It can be maintained well.

  Since the present invention is configured as described above, it is possible to suppress the complication of the structure of the precast column beam joint and to secure the bonding strength between the precast column beam joint and the precast beam member. It is possible to provide a precast beam-column joint structure that eliminates the need for placing concrete in the building.

It is a disassembled perspective view which shows the joining structure of the precast column beam which concerns on 1st Embodiment of this invention. It is a perspective view which shows the joining structure of the precast column beam which concerns on 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS (A) which shows the joining structure of the precast column beam which concerns on 1st Embodiment of this invention is an exploded sectional view, (B) is sectional drawing. It is an exploded sectional view showing the connection structure of the precast column beam concerning a comparative example. It is sectional drawing which shows the joining structure of the precast column beam which concerns on 2nd Embodiment of this invention. (A) is sectional drawing which shows the joining structure of the precast column beam which concerns on 3rd Embodiment of this invention, (B) is a moment diagram which shows the state of the bending moment which arises in a precast column member.

An embodiment of the present invention will be described below with reference to the drawings.
1 to 3 show a precast (hereinafter referred to as PCa) column beam joint structure 10 according to a first embodiment of the present invention. As shown in these drawings, the PCa column beam joining structure 10 includes a precast concrete PCa column member 12, 14, 16, and 18 and a precast concrete PCa column beam joint 20 in part. A joint-integrated PCa beam member 22 and a precast concrete PCa beam member 24 configured in a cross shape are provided.

  The PCa column members 12 and 14 are joined up and down via a PCa column beam joint 20. A column reinforcing bar (not shown) protrudes downward from the lower part of the PCa column beam joint 20, and a sleeve (not shown) into which the column reinforcing bar is inserted is embedded in the upper part of the PCa column member 14. A column reinforcing bar (not shown) protrudes upward from the upper part of the PCa column beam joint 20, and a sleeve (not shown) into which the column reinforcing bar is inserted is embedded in the lower part of the PCa column member 12.

  Further, the PCa column members 16 and 18 are joined up and down via a joint portion 26 that constitutes an intersection of the PCa beam members 24. The PCa beam member 24 includes a joint-integrated PCa beam member 28 having a joint portion 26 at the center in the longitudinal direction, and PCa beam members 30 and 32 joined in the horizontal direction via the joint portion 26. ing. Beam rebars (not shown) protrude from the side surfaces (both front and rear surfaces in the figure) of the joint portion 26 to both lateral sides (both front and rear directions in the figure), and a sleeve (not shown) into which the beam rebars are inserted is PCa. The beam members 30 and 32 are embedded in the end portions (on the connection portion 26 side).

  One end of the PCa beam member 28 in the axial direction is joined to the PCa column members 12 and 14 and the PCa beam member 22 via the PCa column beam joint 20. A plurality of beam reinforcing bars (beam main bars) 34 are arranged in the PCa column beam joint 20 along a horizontal direction (lateral direction) orthogonal to the longitudinal direction of the PCa beam member 22. One end side in the axial direction protrudes from the PCa column beam joint 20 to the PCa beam member 28 side.

  Further, the PCa beam member 28 is provided with a beam reinforcing bar (beam main bar) 36 along the longitudinal direction thereof and along the extended line of the beam reinforcing bar 34. Further, a plurality of sleeves 38 as joint means are embedded in one longitudinal end portion of the PCa beam member 28 (on the PCa column beam joint portion 20 side), and one axial end portion of each beam rebar 36 is inserted. The sleeve 38 forms a hole for inserting the beam reinforcing bar 34 on one end surface in the longitudinal direction of the PCa beam member 28. Further, the other axial end of the beam reinforcing bar 36 protrudes from the other longitudinal end surface of the PCa beam member 28.

  Further, column reinforcement (column main reinforcement) 40 is arranged along the longitudinal direction (vertical direction) of the PCa column member 16 joined to the upper portion of the joint portion 26. A plurality of sleeves 42 are embedded in the upper end portion of the PCa column member 18 joined to the lower portion of the joint portion 26. Each sleeve is provided along the longitudinal direction (vertical direction) of the PCa column member 18 and the extension line of the column reinforcing bar 40. Further, the joint portion 26 is formed with a plurality of through holes 44 penetrating in the vertical direction. Each through hole 44 is formed along an extension line of the column reinforcing bar 40. Further, the column reinforcing bar 40 extends to the height of the sleeve 42.

  The sleeves 38 and 42 are insertion-type mechanical joints that can be inserted without screwing the beam reinforcing bars 36 or the column reinforcing bars 40. Instead of the sleeves 38 and 42, the beam reinforcing bars 36 are provided on the inner wall. A screw-in type mechanical joint formed with a female screw to be screwed in may be used.

Here, the joining method of the precast column beam in this embodiment is demonstrated.
First, the PCa column member 14 is installed at a predetermined position, and the PCa beam member 22 and the PCa column member 12 are sequentially stacked thereon, and the PCa column member 12, the PCa beam member 22 and the PCa column member 14 are connected to the PCa column beam joint. It joins via the part 20. The bonding is similarly performed by a fixing bonding method using a grout such as mortar described later.

  Next, after the PCa column member 18 is installed at a predetermined position, the PCa beam member 28 is moved along the longitudinal direction (lateral direction and horizontal direction) with the sleeve 38 facing the beam reinforcing bar 34. The beam reinforcing bar 34 is inserted into the sleeve 38. Then, by moving the PCa column member 16 from above to below, the column rebar 40 is inserted through the through hole 44 and further inserted into the sleeve 42.

  Thereafter, grout (curing agent) is injected into the sleeve 38 from a grout injection hole (not shown) formed in the PCa beam member 28, and excess grout is discharged into a grout discharge hole (not shown) formed in the PCa beam member 28. The sleeve 38 is filled with grout. Then, the filled grout is hardened, and the end portion of the beam reinforcing bar 34 is fixedly coupled to the sleeve 38.

  Further, grout (curing agent) is injected into the sleeve 42 from a grout injection hole (not shown) formed in the PCa column member 18, and excess grout is discharged into a grout discharge hole (not shown) formed in the PCa column member 18. The sleeve 42 is filled with grout. Then, the filled grout is hardened, and the end portion of the column reinforcing bar 40 is fixedly coupled to the sleeve 42.

  As a result, the PCa beam member 28 is joined to the PCa column members 12 and 14 and the PCa beam member 22 via the PCa column beam joint 20, and the PCa column members 16 and 18 are joined via the joint 26. It is joined to the PCa beam members 28, 30 and 32.

  In addition, the joining of the PCa beam members 30 and 32 and the PCa beam member 28 is fixed by injecting a grout into the sleeve after the beam rebar is inserted into the sleeve and curing the grout, as in the other joining portions. Although this is performed by joining, the actual joining process may be performed after the PCa beam member 28 is joined to the PCa column beam joint 20 or before.

  Here, in this embodiment, the beam reinforcing bar 34 is protruded from the PCa column beam joint 20 and the sleeve 38 fixedly coupled to the beam reinforcing bar 34 is embedded in the end of the PCa beam member 28. As shown in FIG. 4, a configuration in which the beam reinforcing bar 36 protrudes from the end of the PCa beam member 28 and the sleeve 38 is embedded in the PCa column beam joint 20 is also conceivable.

  However, the PCa column beam joint 20 forms not only a part of the beam but also a part of the column, and generally the shear side span ratio is shorter on the column side than on the beam side. A large number of shear reinforcement bars must be arranged in the joint portion 20. Further, in the PCa column beam joint portion 20, column reinforcing bars and beam reinforcing bars are arranged.

  For this reason, it is not easy to embed the sleeve 38 in the PCa column beam joint portion 20, and even if it can be made, it is not easy to manufacture the PCa column beam joint portion 20 having such a complicated structure. Absent. When the sleeve 38 is embedded in the PCa column beam joint 20, the L-shaped beam reinforcement 1 fixedly coupled to the beam rebar 36 through the sleeve 38 is connected to the PCa column beam joint 20. In this case, it is difficult to ensure sufficient fixing strength between the beam reinforcing bar 1 and the PCa column beam joint 20 (concrete). This is because it is difficult to take a sufficient length of the beam reinforcing bar 1.

  In contrast, in the present embodiment, as described above, the beam reinforcing bar 36 is protruded from the PCa column beam joint 20 and the sleeve 38 fixedly coupled to the beam reinforcing bar 36 is attached to the end of the PCa beam member 28. By embedding, the structure of the PCa column beam joint 20 can be simplified and the manufacture of the PCa column beam joint 20 can be facilitated as compared with the comparative example shown in FIG. In addition, since the fixing length of the beam reinforcing bar 36 can be increased as much as the sleeve 38 is not provided, the fixing strength between the beam reinforcing bar 36 and the concrete can be improved, so that the PCa beam member 28 and the PCa column beam finishing can be achieved. The bonding strength with the mouth portion 20 can be improved. Furthermore, it is not necessary to place concrete on site.

  In the present embodiment, a through hole 44 is formed in the joint portion 26 of the PCa beam member 28 so as to penetrate in the vertical direction, and the sleeve 42 is provided on the upper portion of the PCa column member 18 disposed below the joint portion 26. Further, the PCa column member 18 was installed by projecting the column reinforcement bar 40 downward from the PCa column member 16 disposed on the upper side of the joint portion 26. It can be moved in the direction and joined to the PCa column beam joint 20.

  In the present embodiment, the present invention has been described by taking as an example a configuration in which the PCa column beam joint 20 is integrated with the PCa beam member 22 extending in a direction orthogonal to the beam rebar 36. The joint portion 20 may be a separate member from the PCa beam member 22, or may be integrated with the PCa column member as in a third embodiment described later.

Next, a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and description is abbreviate | omitted.
5A and 5B show a PCa column beam joint structure 50 according to the present embodiment. As shown in these drawings, the PCa column beam joint structure 50 is provided on both sides of the PCa column beam joint member 52 as a precast column beam joint member 52 and the PCa column beam joint member 52. A pair of left and right PCa beam members 54 is provided.

  The PCa column beam joint member 52 has a plurality of beam rebars (beam main bars) 56 extending along the longitudinal direction of the PCa beam member 54, and both axial ends of the beam rebar 56 are connected to the PCa column beam. The joint member 52 protrudes from the left and right side surfaces to both side surfaces. The PCa beam member 54 has a plurality of beam reinforcing bars 62 arranged in the longitudinal direction and along the extension line of the beam reinforcing bar 56. Further, a plurality of sleeves 58 are provided along the beam reinforcing bars 56 at both ends in the longitudinal direction of the PCa beam member 54, and holes for inserting the beam reinforcing bars 34 and 56 are formed.

Here, the joining method of the precast column beam in this embodiment is demonstrated.
First, after installing the PCa column member 14, the PCa beam member 22, the PCa column member 12, and the PCa column member 18, the PCa beam member 54 is moved in the longitudinal direction (with the sleeve 58 facing the beam reinforcing bar 34). The beam rebar 34 is inserted into the sleeve 58 by moving along the horizontal and horizontal directions.

  Next, with the beam rebar 56 facing the sleeve 58, the PCa column beam joint member 52 is moved along the axial direction (lateral direction and horizontal direction) of the beam rebar 56, whereby the beam rebar 56 is moved to the sleeve 58. To insert. Then, by moving the PCa column member 16 from above to below, the column rebar 40 is inserted through the through hole 44 and further inserted into the sleeve 42.

  Thereafter, grout (curing agent) is injected into the sleeve 58 from the grout injection holes (not shown) formed at both ends in the longitudinal direction of the PCa beam member 54, and excess grout is applied to both ends in the longitudinal direction of the PCa beam member 54. By discharging from the formed grout discharge hole (not shown), the sleeve 58 is filled with grout. Then, the filled grout is hardened, and the ends of the beam reinforcing bars 34 and 56 are fixedly coupled to the sleeve 58.

  Further, grout (curing agent) is injected into the sleeve 42 from a grout injection hole (not shown) formed in the PCa column member 18, and excess grout is discharged into a grout discharge hole (not shown) formed in the PCa column member 18. The sleeve 42 is filled with grout. Then, the filled grout is hardened, and the end portion of the column reinforcing bar 40 is fixedly coupled to the sleeve 42.

  As a result, the PCa beam member 54 is joined to the PCa column members 12 and 14 and the PCa beam member 22 via the PCa column beam joint 20. A pair of PCa beam members 54 on both sides of the PCa column beam joint member 52 and the upper and lower PCa column members 16 and 18 of the PCa column beam joint member 52 are connected via the PCa column beam joint member 52. Be joined.

  Here, the beam reinforcing bar 56 is protruded from the PCa column beam joint member 52 to both sides, and a sleeve 58 fixedly coupled to the beam reinforcement 56 is embedded in the PCa beam member 54. 52, and the fixing strength between the beam reinforcing bar 56 and the concrete in the PCa column beam joint member 52 is secured, and two or more PCa beams are provided on the side of the PCa column beam joint member 52. The member 54 can be joined.

  Note that, in the present embodiment, the configuration in which the PCa beam members 54 are provided only on the side sides of the PCa column beam joint member 52 and at positions corresponding to both axial ends of the beam reinforcement 56 has been described as an example. The PCa beam members 54 may also be provided on both sides of the PCa column beam joint member 52 in the direction perpendicular to the beam reinforcing bars 56.

Next, a third embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the structure similar to 1st, 2nd embodiment, and description is abbreviate | omitted.
As shown in FIG. 6A, a PCa column beam joining structure 60 according to this embodiment is shown. As shown in this figure, in the PCa column beam joint structure 60, a plurality of joint-integrated PCa column members 64 formed integrally with a pair of upper and lower PCa column beam joints 20 are joined in the vertical direction. ing. The PCa column member 64 has a height of two floors. Further, a plurality of beam reinforcing bars (not shown) protrude downward from the lower part of each PCa column member 64, and a sleeve (not shown) to which the beam reinforcing bar is inserted and coupled is formed on the upper part of each PCa column member 64. Several are buried.

  In the PCa column beam joint structure 60, a plurality of joint-integrated PCa column members 68 formed integrally with a pair of upper and lower PCa column beam joints 66 are joined in the vertical direction. The PCa column member 68 has a height of two floors. A plurality of beam reinforcing bars (not shown) protrude downward from the lower portion of each PCa column member 68, and a sleeve (not shown) into which the beam reinforcing bar is inserted and fixedly coupled is an upper portion of each PCa column member 64. There are several buried.

  Each PCa column beam joint 66 is provided at the same height as each PCa column beam joint 20. Further, a PCa beam member 54 is provided between each PCa column beam joint portion 20 and each PCa column beam joint portion 66. A plurality of beam reinforcing bars (beam main reinforcing bars) 56 are extended along the longitudinal direction of the PCa beam member 54 in the PCa column beam joint 66, and both axial ends of the beam reinforcement 56 are connected to the PCa column beam joint. Projecting from the left and right side surfaces of the portion 66 to both sides, the end portion is inserted into the sleeve 58 and fixedly coupled.

By the way, the joint part 64A between the PCa column members 64 and the joint part 68A between the PCa column members 68 are the central part in the height direction between the PCa beam members 54 on the upper and lower sides of the joint parts 64A and 68A, that is, a predetermined floor. It is arrange | positioned in the height direction center part in (for example, an even number floor).
Here, as shown in FIG. 6 (B), the height of the inflection point of the bending moment acting on the PCa column members 64 and 68 at the time of the earthquake is generally located at the center in the height direction of each floor. That is, the bending moment acting on the PCa column members 64 and 68 is zero at the center in the height direction of each floor. For this reason, since a bending moment does not act or hardly acts on the joining parts 64A and 68A, it is possible to prevent bending fracture from occurring in the joining parts 64A and 68A, and maintain a good joined state in the joining parts 64A and 68A. it can.

In the present embodiment, the PCa column member 64 and the plurality of PCa column beam joints 20 and the PCa column member 68 and the plurality of PCa column beam joints 66 are integrally formed, so that the number of components and joints can be increased. The number of parts can be reduced and the parts cost can be reduced. Moreover, the man-hour about the joining operation | work of the precast column member and the precast column beam joint part in a construction site can be reduced.
The joint-integrated PCa pillar member 64 in the present embodiment is a PCa pillar member having a height of two layers, but is not limited to this, and is a lifting machine that lifts the pillar member. If the capacity permits, the pillar member may be a PCa pillar member having a height of three layers or more. Even in such a case, it is necessary to arrange the joint portion between the PCa column members at the center in the height direction of each floor, and arrange it so as to coincide with the inflection point of the bending moment acting on each column member. Is preferred.

In addition, it is not essential that all the column reinforcing bars (column main reinforcing bars) are fixedly connected to each other through the sleeve (joint means) at the joint portion between the PCa column members 64. For example, the moment generated during an earthquake is sufficiently large. If it is small, only a part of the column reinforcing bars (for example, outer peripheral corners) may be fixedly coupled to the sleeve, and the remaining column reinforcing bars may not be fixedly coupled to the sleeve.
The present invention has been described in detail with respect to specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor.

For example, in this embodiment, each member is tightly joined at the joint between the three members of the precast column member, the precast beam member, and the precast joint portion (member). Part) may be provided. In this case, it is possible to ensure the transmission of the shearing force at the joint.
Moreover, you may provide a clearance gap between each member in the said junction part. In this case, the position adjustment of each member can be performed while absorbing the assembly (construction) error. In this case, when grout is injected, it is possible to inject grout into the sleeve satisfactorily by injecting mortar with an air tube or the like fitted in the outer periphery of the gap of each member. It is.

DESCRIPTION OF SYMBOLS 10 Precast column beam connection structure 12 Precast column member 14 Precast column member 16 Precast column member 18 Precast column member 20 Precast column beam joint 28 Precast beam member 34 Beam reinforcement (beam main reinforcement)
38 Sleeve (joint means)
50 Precast column beam joint structure 52 Precast column beam joint member (Precast column beam joint part)
54 Precast beam members 56 Beam reinforcement (beam reinforcement)
58 Sleeve (joint means)
60 Precast column beam joint structure 64 Precast column member (Precast column member with integrated joint)
66 Precast column beam joint 66A Joint 68 Precast column member (precast column member with integrated joint)
68A joint

Claims (3)

A precast column beam joining structure for joining a precast column member and a precast beam member via a precast column beam joint member,
The precast column beam joint member includes a beam main bar protruding toward the precast beam member side,
The precast beam member includes a joint means fixedly coupled to the beam main bar by moving in a lateral direction relative to the precast column beam joint member joined to the precast column member. Bonding structure. The precast beam members are provided on both lateral sides of the precast column beam joint member;
2. The precast column beam joining structure according to claim 1, wherein the beam main bars protrude from the precast column beam joint member toward the precast beam members provided on both sides of the side. The precast beam member is provided on one side of the precast column beam joint member;
2. The precast column beam joining structure according to claim 1, wherein the beam main bar protrudes from the precast column beam joint member to the precast beam member side provided on the side one side.

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