JP2016176216A - Joint device, joint structure, and joint method for joint section - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology regarding a joint section connecting a reinforced concrete column and a steel beam that offers improved workability than conventional technologies.SOLUTION: A joint device is for a joint section between a reinforced concrete column extending in a vertical direction and an H-steel beam extending in a horizontal direction, and includes a cylindrical closing plate surrounding the reinforced concrete column at the joint section, in which an edge part of the steel beam is connected on a side surface thereof, and a diaphragm installed on an inner side of the cylindrical closing plate at a location corresponding to a flange of the steel beam.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a splicing part joining apparatus, a splicing part joining structure, and a splicing part joining method.

  There are various techniques as a joining structure or a joining method of a reinforced concrete (RC) structure, a steel (S) structure, a steel reinforced concrete (SRC) structure. For example, Patent Documents 1 and 2 disclose a joint structure of an RC column (reinforced concrete column) and an S beam (steel beam).

Japanese Utility Model Publication No. 6-25403 Japanese Utility Model Publication No. 5-81404

  As an example of the joint structure of the joint in the structure, there is a structure in which an RC column (reinforced concrete column) and an S beam (steel beam) are bonded. Here, FIG. 1 shows a perspective view of an example of the joint structure of the joint according to the prior art. FIG. 2 is a partially exploded perspective view of the joint structure of the joint according to the prior art. FIG. 3: shows the longitudinal cross-sectional view of an example of the joint structure of the joint part based on a prior art. FIG. 4: shows the cross-sectional view of an example of the joining structure of the joint part based on a prior art.

  The joint structure 100x according to the prior art shown in FIGS. 1 to 4 is a so-called finish in which an RC column 10x extending in the vertical direction and an S beam 20x extending in the horizontal direction are orthogonally bonded. It is an example of the structure of a mouth. The joint portion 30x is a portion where the RC column 10x and the S beam 20x are joined. The joint portion 30x needs to have a structure that can transmit the stresses borne by each member (RC column 10x, S beam 20x) to each other. In the joint joint structure 100x according to the prior art shown in FIGS. 1 to 4, an S-shaped beam 20x is passed through an RC column 10x. In this case, it is conceivable that the web of the S-shaped beam 20x is made to penetrate the strip 12x of the RC column 10x. However, such construction is very time-consuming. Therefore, in the joint joint structure 100x according to the prior art shown in FIG. 1 to FIG. 4, in order to facilitate the construction, the reinforcing bars in the joint 30x omit only the main reinforcement 11x and omit the strap 12x. Instead of the line 12x, a cover plate 40x surrounding the periphery of the RC column 10x of the joint is used. The cover plate 40x has an angle shape in which two rectangular steel plates are connected so as to form a right angle. In addition, two flanges of the H-shaped S-shaped beam 20x are provided at the end of the two steel plates opposite to the end of the joining side where the two steel plates are connected. And a convex portion having a rectangular shape for accommodating in a space formed between the web and the web. And the edge part by the side which has a convex part is welded to the flange and web of S beam 20x. The four cover plates 40x are arranged so as to surround the RC pillar 10x of the joint portion.

In the construction of the joint joint structure 100x shown in FIGS. 1 to 4, first, the H-shaped S-shaped beam 20x is welded in a cross shape. Next, the four cover plates 40x are welded to the flange and web of the S-shaped beam 20x. The welding of the cover plate 40x is performed by double-sided fillet welding in which fillet welding is performed from both sides of the cover plate 40x. Here, in order to improve workability at the site, the joint portion 30x is unitized, and the unitized joint portion (S-shaped beam 20x welded in a cross shape and welded to the S-shaped beam 20x) It is preferable to manufacture the connecting portion connecting device including the cover plate 40x) at a factory. Further, when the unitized joint 30x is manufactured at the factory, robot welding is preferable to manual welding in order to ensure quality. However, fillet welding inside the cover plate 40x can only be performed by manual welding, and robot welding is difficult. Further, the inner fillet welding of the cover plate 40x by manual welding is labor intensive and requires high technology. In addition, there is a concern that the efficiency is poor, such as welding in a state where the work is far away or welding with changing the top and bottom direction of the joint is required.

  This invention makes it a subject to provide the technique regarding the joint part with which the column made from RC and the beam made from S were joined in view of said problem, which was excellent in workability than before.

  In the present invention, in order to solve the above-mentioned problem, the RC pillar is surrounded by a cylindrical cover plate in the joint portion where the RC pillar and the S beam are joined, and S is placed in the joint portion. The diaphragm is provided in the joint portion at a position corresponding to the flange of the S-shaped beam without penetrating the built-in beam.

  Specifically, the present invention is a joining device for a joint part constituting a joint part in which an RC column extending in a vertical direction and an H-shaped beam extending in a horizontal direction are joined. A cylindrical cover plate that surrounds an RC column in the joint portion, and has a cylindrical cover plate with an end of the S-shaped beam joined to a side surface, and an inner side of the cylindrical cover plate And a diaphragm provided at a position corresponding to the flange of the S-shaped beam.

  In the joining device for a joint according to the present invention, the cover plate is cylindrical. Therefore, the S-shaped beam only needs to join the end of the S-shaped beam to the side surface of the joining device of the joint, and does not need to penetrate the joint. Therefore, unlike the prior art, there is no need to insert and weld the end of the cover plate between the S-shaped flanges, and there is no need to weld both sides of the fillet from both sides of the end of the cover plate. As a result, workability is improved.

  The diaphragm may be joined to the inside of the cover plate, or may be joined directly to the flange of the S beam. These joints may be so-called butt welding from the outside of the diaphragm. Thereby, the joining apparatus of the joint part based on this invention can be performed only by the welding operation from the outer side of the joining apparatus of a joint part, and workability | operativity improves more. Moreover, it is good to manufacture the joining apparatus of a joint part in a factory. By making it at the factory, the workability on site will be improved. Moreover, it is preferable that the joining when the joining device for the joint is manufactured in a factory is robot welding. A certain quality can be easily ensured by robot welding. In addition, since the S-shaped beam does not penetrate into the joint portion, the connection device for the joint portion according to the present invention is simpler than that in which the S-shaped beam penetrates into the conventional joint portion. It is a configuration. Therefore, it can be said that the quality is easily secured. Moreover, the burden of transportation etc. can be reduced.

  Moreover, in the joining apparatus of the joint part which concerns on this invention, a diaphragm is provided in the position corresponding to the flange of a S-shaped beam inside a cylindrical cover board. Therefore, the axial force acting on the flange of the S beam is efficiently transmitted as the axial force of the diaphragm. Further, when concrete is filled in the joining device of the joint, the axial force of the diaphragm is transmitted to the joint and the RC column by the adhesion force between the diaphragm and the concrete. Further, all or a part of the shearing force acting on the S-shaped beam web is transmitted to the diaphragm, and the remaining shearing force is transmitted from the joint between the S-shaped beam web and the cylindrical cover plate. It is transmitted to the joint. Therefore, in the connection device for a joint according to the present invention, the stresses borne by the RC column and the S beam are transmitted to each other, and the same or higher strength is ensured as before. be able to.

Here, the splicing part joining apparatus according to the present invention may further include an S-shaped beam joined to a side surface of the cylindrical cover plate. By joining a part of the S-shaped beam in advance to the connection device at the joint, it is possible to reduce welding work due to work at high places in the field, and workability is improved. Connection of a part of the S-shaped beam joined to the connection device of the joint portion and the other S-shaped beam can be performed using a joining bracket, a bolt, and a nut. Further, welding may be performed. It should be noted that at least part of the end of the S-shaped beam only needs to be joined to the side surface of the cylindrical cover plate. For example, the flange of the S-shaped beam may be joined to the diaphragm, and the web of the S-shaped beam may be in contact with the side surface of the cylindrical cover plate.

  The diaphragm may be thicker than the flange of the S-shaped beam. Thus, even if the position of the S-shaped beam is shifted in the vertical direction, the axial force acting on the web of the S-shaped beam can be efficiently transmitted as the axial force of the diaphragm.

  Further, the diaphragm may have a notch or a hole through which a main bar of the RC column is passed. By forming a notch or a hole in the diaphragm, the main bar of the RC column can be easily passed. Also, since the compressive force with the concrete acts on the vertical surface of the notch or hole, the axial force transmitted to the diaphragm by the compressive force acting on the vertical surface of the notch or hole is made by the joint and the RC structure. Can be transmitted to the pillar.

  The diaphragm may have a filling hole for filling the inside of the joining device of the joint part. Thereby, the filling property of concrete improves. Moreover, workability | operativity at the time of concrete placement (at the time of filling) improves compared with the case where there is no filling hole.

  The diaphragm may have a protrusion on the inside. Thereby, compared with the case where there is no protrusion, the adhesion force between the diaphragm and the concrete filled in the joint device of the joint is further improved.

  Here, this invention can be specified as a joining structure of a joint part including the joining apparatus of a joint part mentioned above. Specifically, the present invention is a joint structure of a joint portion in which an RC column extending in the vertical direction and an H-shaped S beam extending in the horizontal direction are bonded to each other. A S-shaped beam to be joined to the RC column, and a cylindrical cover plate surrounding the RC column in the joint portion, and an end portion of the S-shaped beam is formed on a side surface. A cylindrical cover plate to be joined, and a diaphragm provided inside the cylindrical cover plate and at a position corresponding to the flange of the S-shaped beam, and filled with concrete. A mouth bonding device.

  According to the joint structure of the joint according to the present invention, workability can be improved. Moreover, in the connection structure of the joint part according to the present invention, the stress borne by the RC column and the S beam is transmitted to each other, and the same or higher strength is ensured as before. be able to.

  Moreover, this invention can be specified as a joining method of a joint part. Specifically, the present invention is a method of joining a joint portion in which an RC column extending in a vertical direction and an H-shaped S beam extending in a horizontal direction are bonded to each other. The construction process of the pillar to be constructed, the construction process of the joining apparatus of the joint part for constructing the joining apparatus of the joint part on the upper part of the RC pillar, and the side of the joint part of the joint part of the S construction A beam joining step for joining beams, and a concrete placing step for placing concrete inside the joining device for the joint portion, wherein the joint device for the joint portion is an RC in the joint portion. A cylindrical cover plate that surrounds a structure pillar, a tubular cover plate having an end of the S-shaped beam joined to a side surface, an inner side of the cylindrical cover plate, and the S And a diaphragm provided at a position corresponding to the flange of the manufactured beam.

  According to the joint portion joining method according to the present invention, the joint structure of the joint portion can be constructed more efficiently than in the past.

  ADVANTAGE OF THE INVENTION According to this invention, the technique regarding the joint part with which the column made from RC and the beam made from S were joined more excellent than before can be provided.

FIG. 1 shows a perspective view of an example of a joint structure for a joint according to the prior art. FIG. 2 is a partially exploded perspective view of the joint structure of the joint according to the prior art. FIG. 3: shows the longitudinal cross-sectional view of an example of the joint structure of the joint part based on a prior art. FIG. 4: shows the cross-sectional view of an example of the joining structure of the joint part based on a prior art. FIG. 5 is a perspective view of the joint structure of the joint according to the first embodiment. FIG. 6 is a longitudinal sectional view of the joint structure of the joint according to the first embodiment. FIG. 7 shows a cross-sectional view of the joint structure of the joint according to the first embodiment. FIG. 8 shows a flow of the joining method of the joint according to the first embodiment. FIG. 9: shows the disassembled perspective view of the joining apparatus of the joint part which concerns on 1st Embodiment. FIG. 10 is an exploded perspective view of the end portion of the S-shaped beam according to the first embodiment. FIG. 11 is an exploded perspective view of the joint structure of the joint according to the first embodiment. FIG. 12 is a model diagram (cross-sectional view) for explaining the stress in the joint structure of the joint according to the first embodiment. FIG. 13: shows the model figure (perspective view) explaining the stress in the joint structure of the joint part which concerns on 1st Embodiment. FIG. 14: shows the longitudinal cross-sectional view of the joining structure of the joint part which concerns on the modification of 1st Embodiment. FIG. 15: shows the perspective view which decomposed | disassembled partially the joint structure of the joint part which concerns on the modification of 1st Embodiment. FIG. 16: shows sectional drawing of the joining apparatus of the joint part which concerns on 2nd Embodiment. FIG. 17: shows the perspective view of the protrusion part of the joining apparatus of the joint part which concerns on 2nd Embodiment. FIG. 18: shows the perspective view of the projection part of the joining apparatus of the joint part which concerns on the modification of 2nd Embodiment.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, as an example, a joint structure of a joint portion where an RC column and an S beam are connected will be described. The following description is an example, and the present invention is not limited to the following contents.

<First Embodiment>
<< Joint structure of joint >>
FIG. 5 is a perspective view of the joint structure of the joint according to the first embodiment. FIG. 6 is a longitudinal sectional view of the joint structure of the joint according to the first embodiment. FIG. 7 shows a cross-sectional view of the joint structure of the joint according to the first embodiment.

  The joint joint structure 100 according to the first embodiment includes an RC column 10 extending in the vertical direction, an H-shaped S beam 20 extending in the horizontal direction, and a joint joint device 30. is there. The joint portion is a portion where the RC pillar 10 and the S beam 20 are joined. In the first embodiment, the joint portion connecting device 30 is unitized.

  The RC column 10 has a rectangular shape in a cross-sectional view, and three main bars 11 extending in the vertical direction are arranged in the concrete, three at four corners (total of 12). In addition, the strips 12 connected to the main bars 11 are arranged at intervals in the vertical direction.

  The S-shaped beam 20 is made of an H-shaped steel member, and is connected to four side surfaces of the joint device 30 of the joint portion. In addition, the part connected to the four side surfaces of the joining device 30 of the joint part in the S-structured beam 20 is joined to the joining device 30 of the joint part in advance at the factory. In order to distinguish, it will be referred to as an S-shaped beam 21 for connection.

  The joint unit 30 is manufactured at a factory. However, the joint unit 30 may be manufactured in the field. The joint part joining device 30 includes a cylindrical cover plate 40, a diaphragm 50, and an S-shaped beam 21 for connection. The cylindrical cover plate 40 is made of a steel plate, and surrounds a rectangular RC column 10 in a cross-sectional view in the joint portion. The corners of the cylindrical cover plate 40 are R-shaped. The vertical length of the cylindrical cover plate 40 is designed to be longer than the vertical length of the S-shaped beam 20. S-shaped beams 21 for connection are respectively joined to the four side surfaces of the cylindrical cover plate 40. Further, a diaphragm 50 (upper diaphragm, lower side) is located inside the tubular cover plate 40 and at a position corresponding to the flange 22 (upper flange, lower flange) of the S-shaped beam 21 for connection. The diaphragm).

  In the S-shaped beam 21 for connection, a rectangular bearing plate 25 is joined at one end between an upper flange 22 and a lower flange 22. The other end is provided with a through hole 29 for connection with the S-shaped beam 20, the joining bracket 60, and the bolt / nut 61.

  The diaphragm 50 is configured by a square steel plate, a notch 511 is provided in the vicinity of the corner, and a filling hole 512 is provided in the center. The notch 511 passes the main reinforcement 11 of the RC column 10. A through hole may be used instead of the notch 511. The filling hole 512 can be used when the concrete is filled in the joining device 30 of the joint portion. The diaphragm 50 has a cross shape by providing a notch 511 in the vicinity of the corner. The diaphragm 50 is formed thicker than the flange 22 of the S-shaped beam 20. The upper diaphragm 50 is joined to a position corresponding to the upper flange 22 of the S-shaped beam 21 for connection. The lower diaphragm 50 is joined to a position corresponding to the lower flange 22 of the S-shaped beam 21 for connection. The upper diaphragm 50 and the lower diaphragm 50 are inclined at the ends so that butt welding can be performed from the outside. Note that the filling hole 512 may be omitted, and the diaphragm 50 may have a simpler configuration.

<< Join method for joints >>
FIG. 8 shows a flow of the joining method of the joint according to the first embodiment. In step S01, an RC pillar 10 is constructed. After assembling the main bars 11 and the band bars 12 and the formwork, concrete is placed.

  Next, in step S02, the joint device 30 of the joint portion is constructed on the upper part of the RC pillar 10 constructed. The joint part joining device 30 is manufactured in advance in a factory, and is transported to the site where the structure part including the joint part joining structure 100 is constructed. Here, FIG. 9 shows an exploded perspective view of the joining device for a joint according to the first embodiment. In the joining device 30 of the joint portion, the diaphragm 50 is joined to the inside of the cylindrical cover plate 40. Specifically, the upper diaphragm 50 is joined to a position corresponding to the upper flange 22 of the S-shaped beam 21 for connection. The lower diaphragm 50 is joined to a position corresponding to the lower flange 22 of the S-shaped beam 21 for connection. The diaphragm 50 is joined by butt welding from the outside of the joint device 30 at the joint.

FIG. 10 is an exploded perspective view of the end portion of the S-shaped beam according to the first embodiment. In a factory, a rectangular bearing plate 25 is joined to one end of the S-shaped beam 21 for connection between the upper flange 22 and the lower flange 22 by fillet welding. A through-hole 29 is formed at the other end to connect the S-shaped beam 20, the joining bracket 60, and the bolt / nut 61. The connecting S-shaped beam 21 to which the bearing plate 25 is joined and the through hole 29 is formed has a flange 22 at the end on the side to which the bearing plate 25 is joined. Joined to the side by butt welding. The shearing force acting on the web on the end portion on which the bearing plate 25 is joined is transmitted to the cylindrical cover plate 40 via the bearing plate 25. Therefore, the welding of the web at the end where the bearing plate 25 is joined and the side surface of the cylindrical cover plate 40 can be omitted.

  FIG. 11 is an exploded perspective view of the joint structure of the joint according to the first embodiment. The joint joining device 30 manufactured at the factory is lifted by a heavy machine such as a crane after being transported, and is lowered so as to pass the main reinforcement 11 through the notch 511 of the diaphragm 50, and the upper part of the RC column 10. Connected to.

  In step S03, the S-shaped beam 20 is joined. Specifically, the S-shaped beam 20 is joined to the end of the S-shaped beam for connection by the joining bracket 60 and the bolt / nut 61 (see FIG. 11).

  In step S04, concrete is placed (filled) in the joining device 30 of the joint. Placing the concrete in the joint device 30 of the joint is performed via the filling hole 512. Thus, the connection structure 100 for the joint is completed. In addition, when the structure has the connection structure 100 of a some joint part, the process of step S01 to step S04 is repeated suitably.

<< Stress transmission >>
Here, FIG. 12 is a model diagram (cross-sectional view) for explaining the stress in the joint structure of the joint according to the first embodiment. FIG. 13: shows the model figure (perspective view) explaining the stress in the joint structure of the joint part which concerns on 1st Embodiment. In the joint structure 100 of the joint according to the first embodiment, the diaphragm 50 is joined to the inside of the cylindrical cover plate 40 and at a position corresponding to the flange 22 of the S-shaped beam 21 for connection. . Therefore, the axial force (T) acting on the flange of the S-shaped beam 20 is efficiently transmitted as the axial force (T) of the diaphragm 50. The bending moment (M) acting on the web is decomposed into the axial force (T) of the upper and lower flanges 22 and transmitted as the axial force (T) of the diaphragm 50. Due to the adhesive force (B1) between the diaphragm 50 and the concrete, the axial force of the diaphragm 50 is transmitted to the joint portion and the RC column 10. Further, all or a part of the shearing force (Q) acting on the web of the S-shaped beam 20 is transmitted to the diaphragm 50 as the shearing force (Q1) of the diaphragm 50. The remaining shearing force (Q2) is transmitted to the web of the S-shaped beam 20 and the cylindrical blocking plate 40, and the remaining shearing force (Q2) is caused by the adhesive force (B2) between the cylindrical blocking plate 40 and the concrete. ) Is transmitted to the joint and the RC pillar 10. Therefore, in the joint structure 30 of the joint according to the first embodiment, the stress borne by the RC column 10 and the S beam 20 is transmitted to each other, which is the same as or higher than the conventional one. The strength of the can be ensured.

<< Modification >>
Here, FIG. 14 shows a longitudinal sectional view of the joint structure of the joint according to a modification of the first embodiment. FIG. 15: shows the perspective view which decomposed | disassembled partially the joint structure of the joint part which concerns on the modification of 1st Embodiment. FIG. 15 shows the upper diaphragm 50 and one S-shaped beam 21 for connection, and the lower diaphragm 50 and the other S-shaped beam 21 for connection are omitted. The connection device 30 of the joint according to the modification of the first embodiment is different from the first embodiment described above in that the flange 22 of the S-shaped beam 21 for connection is directly joined to the diaphragm 50. Different.

Specifically, the rectangular cover plate 40 is formed with rectangular cutouts 41 through which the four tip portions of the cross-shaped diaphragm 50 penetrate on each of the upper four sides and the lower four sides. ing. The diaphragm 50 has a cross shape, and is formed so that the tip portions of the four straight portions constituting the cross shape protrude outside the cylindrical cover plate 40. In other words, in the modification of the first embodiment, the four straight portions are designed to be longer than the four straight portions of the first embodiment. The flange 22 of the S-shaped beam 21 for connection is joined to the diaphragm 50 by butt welding which can be welded from the outside of the joint device 30 of the joint portion.

<< Action and effect >>
In the joint joining structure 100 (including the modification) according to the first embodiment, the S-shaped beam 21 for connection is provided in advance on the side surface of the cylindrical cover plate 40 constituting the joint joining device 30. It is connected. Therefore, the S-shaped beam 20 may be connected to the end of the S-shaped beam for connection by the joining bracket 60 and the bolt / nut 61, and penetrates the inside of the joint portion (joining device 30 of the joint portion). There is no need to let them. Therefore, unlike the prior art, there is no need to insert and weld the end of the cover plate between the S-shaped flanges, and there is no need to weld both sides of the fillet from both sides of the end of the cover plate. As a result, workability is improved.

  Moreover, since the diaphragm 50 and the cylindrical cover plate 40 can be welded only by welding work from the outside of the joint device 30 of the joint portion, workability is further improved. Moreover, since the joining apparatus 30 of a joint part is manufactured in a factory, the workability on the spot improves more. Further, when the joint unit 30 is manufactured at the factory, the cylindrical cover plate 40 and the diaphragm 50 are bonded, the cylindrical cover plate 40 and the S-shaped beam 21 for connection, and deformation. In the example, the S-shaped beam 21 for connection and the diaphragm 50 can be joined by robot welding. Therefore, a certain quality can be easily ensured. Moreover, since the S-structure beam 20 does not penetrate into the joint section, the joint-joining device 30 according to the first embodiment is compared with the conventional joint section in which the S-structure beam penetrates. It is a simple configuration. Therefore, it can be said that the quality is easily secured. Moreover, the burden of transportation etc. can be reduced.

  Further, in the joint joining device 30 according to the first embodiment, the stresses borne by the RC column 10 and the S beam 20 are transmitted to each other, which is the same as or higher than the conventional one. The strength of the can be ensured. The diaphragm 50 is thicker than the flange 22 of the S-shaped beam 21 for connection. Therefore, even if the position of the connecting S-shaped beam 21 is shifted in the vertical direction, the axial force acting on the web of the connecting S-shaped beam 21 can be efficiently transmitted as the axial force of the diaphragm 50. it can.

  The diaphragm 50 has a notch 511 through which the main reinforcement 11 of the RC column 10 passes. Therefore, the main reinforcement of RC pillar 10 can be easily passed. Further, since the compressive force with the concrete acts on the vertical surface of the notch 511, the axial force transmitted to the diaphragm 50 by the compressive force acting on the vertical surface of the notch 511 is applied to the joint portion and the RC column. 10 can be transmitted.

  Moreover, the diaphragm 50 has a filling hole 512 for filling the inside of the joining device 11 of the joint part. Therefore, the filling property of concrete improves. Moreover, workability | operativity at the time of concrete placement (at the time of filling) improves compared with the case where there is no filling hole.

Second Embodiment
FIG. 16: shows sectional drawing of the joining apparatus of the joint part which concerns on 2nd Embodiment. FIG. 17: shows the perspective view of the protrusion part of the joining apparatus of the joint part which concerns on 2nd Embodiment. The joint unit 30 according to the second embodiment is provided with a protrusion 70 on the inner side of the diaphragm 50. The protruding portion 70 includes a base portion 71, a vertical portion 72 that rises from an end portion of the base portion 71, and a rib 73 that assists the vertical portion 72. In the joint joining device 30 according to the second embodiment, in addition to the vertical surface of the notch 511, the axial force transmitted to the diaphragm 50 by the compressive force acting on the vertical portion 72 of the protrusion 70 is a joint portion. And RC pillars 10 can be transmitted. That is, the adhesion force between the diaphragm 50 and the concrete filled in the joint device 30 of the joint is further improved.

  Here, FIG. 18 shows a perspective view of a protrusion of a joining device for a joint according to a modification of the second embodiment. The protrusion 70 may be configured by a stud bolt 74 as shown in FIG. By providing some protrusions inside the diaphragm 50, the adhesion force between the diaphragm 50 and the concrete filled in the joining device 30 of the joint is further improved as compared with the case where no protrusion is provided.

  Although the preferred embodiments of the present invention have been described above, the present invention can be implemented by combining the embodiments as much as possible.

DESCRIPTION OF SYMBOLS 10 ... RC column 11 ... Main reinforcement 12 ... Band 20 ... S beam 21 ... S beam 25 for connection ... Bearing plate 30 ... Joint Joining device 40 ... Cylindrical cover plate 50 ... Diaphragm 511 ... Notch 512 ... Filling hole 60 ... Junction bracket 100 ... Junction structure of joint

Claims (8)

A joining device for a joint part constituting a joint part in which an RC column extending in a vertical direction and an H-shaped S-shaped beam extending in a horizontal direction are joined,
A cylindrical cover plate that surrounds the periphery of the RC column in the joint portion, and a cylindrical cover plate in which an end of the S beam is joined to a side surface;
A joining device for a joint, comprising: a diaphragm provided at a position corresponding to a flange of the S-shaped beam inside the cylindrical cover plate.   The joint part joining device according to claim 1, further comprising an S-shaped beam joined to a side surface of the cylindrical cover plate.   The joint device according to claim 1, wherein the diaphragm is thicker than a flange of the S-shaped beam.   The said diaphragm has a notch or a hole which lets the main reinforcement of the said RC structure pillar pass, The joint part junction apparatus of any one of Claim 1 to 3.   The said diaphragm has a filling hole for filling concrete into the inside of the said joining apparatus of the joint part, The joining apparatus of the joint part of any one of Claim 1 to 4 characterized by the above-mentioned.   The joint device according to any one of claims 1 to 5, wherein the diaphragm has a protrusion on an inner side. A joint structure of a joint part in which an RC column extending in the vertical direction and an H-shaped beam extending in the horizontal direction are bonded to each other,
The RC pillar,
The S-shaped beam joined to the RC column;
A cylindrical cover plate surrounding the periphery of the RC column in the joint portion, wherein the cylindrical cover plate is joined to an end of the S beam on the side surface; and A joint structure for a joint portion, comprising: a diaphragm provided on the inner side and at a position corresponding to the flange of the S-shaped beam, and a joint device for the joint portion filled with concrete inside. A method of joining a joint portion in which an RC column extending in the vertical direction and an H-shaped S beam extending in the horizontal direction are joined.
A pillar construction process for constructing the RC pillar,
A process for constructing a joining device for a joint part that constructs a joining device for a joint part on the top of the RC pillar;
A beam joining step for joining the S-shaped beam to the side surface of the joint device of the joint portion;
A concrete placing step for placing concrete inside the joining device of the joint portion, and
The joint device for the joint is
A cylindrical cover plate that surrounds the periphery of the RC column in the joint portion, and a cylindrical cover plate in which an end of the S beam is joined to a side surface;
A joint portion joining method, comprising: a diaphragm provided inside the cylindrical cover plate and at a position corresponding to a flange of the S-shaped beam.

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