JPH08135014A - Connection member of column and beamc - Google Patents

Abstract

PURPOSE: To increase the efficiency of a construction work, by forming a connection member in which reinforcing cross plates are arranged, leaving pierced holes in the axial direction, so as to unify the connection member with cast steel, in the inside of a cylinder having notches and fitting a beam to a column through this member. CONSTITUTION: The connection member 1 of a column and a beam is constituted of cross plates 4a and rigidity-increasing support plates 4b reinforcing the inside and a cylinder having notches 2a at the outside. This is formed as a unit by cast steel. The main reinforcements of a beam or the like are welded in advance at a specified position of the surface of the connection member 1 to increase the fitting accuracy. The connection member is connected to the fixing position of the beam of a steel skeleton column and a steel skeleton beam or the like is welded on the surface of the connection member to dispense with the reinforcing works in the inside of connection member 1. Thereafter, a form is fixed to the periphery thereof and concrete is placed to unify them and form a steel skeleton concrete column and beam. In this way, a sturdy connection member free from concentrated stresses can be obtained and the construction work is also made efficient.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column / beam joining member, and more particularly to joining columns and beams used in a steel-framed reinforced concrete structure.

[0002]

2. Description of the Related Art There are the following examples of conventional column-beam joining members. That is, the joining member is composed of an octagonal tubular body and a cross plate, and the cross plate is arranged inside the tubular body and welded to the tubular body. Thus, the cylinder is supported from the inside, and the horizontal rebar is
The structure is also attached to the inner surface of the joint portion of the beam of the cylindrical body by welding.

Here, the cross plate is arranged so as to extend only along the joint portion of the web of the beam and only in the vicinity of the joint portion of the flange of the beam. Further, a plurality of the horizontal reinforcing bars are arranged in a portion where the cross plate is not arranged in a direction crossing the web of the beam. This column-beam joining member is placed at the top of the lower reinforced concrete column, the corner column main reinforcement is on the outside of the cylinder, and the remaining column main reinforcement is on the inner surface of the beam connection inside the cylinder. Are used along with each other.

Such a pillar-beam joining member is taught in detail, for example, in Japanese Patent Laid-Open No. 6-146411.

[0005]

However, the conventional joining member requires a lot of labor and time because of the welding of the reinforcing plate and a plurality of horizontal reinforcing bars for reinforcement, mass production is difficult, and the cost is high. became. Further, the joining members produced in this way require skill to maintain a uniform welded state and a uniform quality.

Further, when the beam is made of steel reinforced concrete, there is a problem in that the main reinforcement of the beam, the main reinforcement of the column and the horizontal reinforcement for reinforcement are complicated, and there is a problem in that the work can be carried out smoothly. There was also a problem in maintaining work accuracy. The present invention has been made by paying attention to such unsolved problems of the conventional technology, and by casting and molding a column / beam joining member for a steel-framed reinforced concrete structure that is sturdy and has high quality and high work efficiency. , It is intended to enable mass production and provide at a low price.

[0007]

The column / beam joining member of the present invention is formed of a tubular body, and the tubular body includes a square tube, a hexagonal tube, an octagonal tube, a cylinder, and the like. The tubular body is provided with a stiffening portion at a position to receive the main beam to be joined, and the tubular body and the stiffening portion are integrally formed of cast steel. A molten type is used as the mold.

When a reinforcing portion for supporting the cylindrical body from the inside is provided, the cylindrical body and the reinforcing portion are partitioned into the cylindrical body and penetrate the cylindrical body in the axial direction. An axial through hole is left, and the tubular body, the stiffening portion, and the reinforcing portion are integrally formed of cast steel. The stiffening portion is formed by increasing the wall thickness of the tubular body and extends over the entire length or a part of the axial direction of the tubular body.

As a concrete mode of the stiffening portion, the tubular body is a rectangular tube, and the stiffening portion has the entire length of each side portion excluding the corner portions of the four sides forming the tubular body, or In some cases, the outer surface or the inner surface of the tubular body is made thick at two locations that receive the beam main bars on each side. Here, the stiffening portion provided on the entire length of the side portion has a flat outer surface.

Further, the tubular body is an octagonal tube, and the stiffening portion is
At the total length of each of the four sides of the joining side that receives the beam in the eight sides forming the tubular body, or at two locations that receive the beam main bars of each side,
In some cases, the outer surface or the inner surface of the cylindrical body is formed thick. Here again, the stiffening portion provided along the entire length of the joint side has a flat outer surface. Furthermore, the tubular body is a cylinder, and the stiffening portion is an entire portion that receives the beam of the tubular body,
Alternatively, the outer surface or the inner surface of the tubular body may be thickened at the portion receiving the main beam reinforcement. Also in this case, the stiffening portion provided in the portion that receives the main beam of the beam has a flat outer surface.

Further, the beam main bar may be fixed and held in advance by welding on the stiffening portion. Further, the tubular body is provided with a cutout portion in a portion excluding upper and lower axial end portions thereof, the cutout portion is a portion where the tubular body forms the stiffening portion, and the tubular body is the A plurality of parts are arranged at positions excluding the part supporting the reinforcing part.

As a concrete mode of the cutout, there is a case where the tubular body is a square tube and the cutouts are provided at the corners except the axially upper and lower ends of the tubular body. In some cases, the tubular body is an octagonal tube, and the cutout portions are provided at portions excluding the axial upper and lower end portions of the four sides of the adjacent sides sandwiched by the joining sides. Further, the tubular body is a cylinder, the notches are provided between both ends in the axial direction of the tubular body, the tubular body forms the stiffening portion, and the tubular body supports the reinforcing portion. In some cases, a plurality of them may be arranged at positions other than the above-mentioned part.

Further, the reinforcing portion of the column / beam joint member of the present invention has various shapes and extends in a part or the entire length of the cylindrical body in the axial direction. In particular, when the beam extends partially, the beam main bar and the flange of the beam steel frame are arranged to face the mounting portion. As a specific aspect of the reinforcing portion, a cross plate extending over the entire length in the axial direction of the tubular body so as to support the tubular body from the inside thereof, and a position facing each other through the tubular body And a stiffening part support plate that extends over the entire length or part of the axial direction of the tubular body so as to support each other so that the stiffening portion is continuous in the tubular body. In some cases, the cross plate and the cylindrical body are radially formed concentrically with the cross plate and are provided so as to support the cylindrical body and extend over the entire length or a part of the axial direction of the cylindrical body. The radial length of the cylindrical body is the same as that of the radial plate, or the axial total length of the cylindrical body is left in the cylindrical body while leaving axial through holes constituting a shape selected from a lattice shape, a honeycomb shape, and a dense circular hole shape. Or if it is composed of a reinforcing plate that extends partially, And the like.

[0014]

The joint member for pillars and beams according to the present invention is composed of a tubular body, a stiffening portion, and a reinforcing portion, which are integrally molded of cast steel and have no welded portion or joined portion. The material has a uniform uniformity in the structure, and stress is not concentrated in one place. Further, when the stiffening portion is provided on the cylindrical body, the rigidity of the entire column-beam joining member is increased in combination with the densely arranged reinforcing portion, and a large force is received from the steel beam, the main beam of the beam, and the upper and lower columns. However, the pillar-beam joint member disperses and transmits the force.

Here, if the stiffening portion is formed on the same side as the joint side of the steel beam and its side portion is thickened, the beam main bar is easily and accurately joined to the joint side of the stiffening portion. Then, the force from the main beam of the beam is directly transmitted to the joint member of the column and the beam.
The stiffening portion is formed with the outer surface or the inner surface of the tubular body having a thick wall at the entire length of each joining side of the tubular body or at two places where the beam main bars of each side are joined. When the stiffening part is provided at two places where the beam main bars of each joint side are joined, the stiffening part becomes
Upon receiving the force from the main beam, the stress generated at the joint side is dispersed to the stiffening part and the cylinder.

Further, when the stiffening portion is provided along the entire axial length of each joint side of the tubular body, the stiffening portion receives not only the force from the beam main bar but also the force from the flange of the beam steel frame, and the beam main bar. And the stress generated at the joint portion of the flange of the beam steel frame is distributed to the stiffening portion and the cylindrical body having the increased capacity. Further, when the outer surface of the stiffening portion is formed flat, the end surface of the beam steel frame and the joint member of the column and the beam uniformly contact each other.

Further, by fixing the beam main bar to the stiffening portion by welding in advance in a factory or the like, the beam main bar is reliably positioned and welding accuracy is stabilized. Furthermore, since the reinforcing portion does not require welding work inside the cylinder, it can be arranged in a dense shape inside the cylinder. The reinforcing portion efficiently transmits the respective forces from the column steel frame, the main beam of the beam, the flange of the beam steel frame, and the web, and prevents the concentration of stress.

Further, since an axial through hole is provided in the cylinder body so as to penetrate therethrough in the axial direction, when the connected columns are filled with concrete, the flow of concrete in the column / beam joining member is prevented. It has good properties and concrete is evenly filled between the connected columns. Further, when the cylindrical body is provided with a plurality of cutouts at portions other than the axially upper and lower end portions thereof, the column / beam joining member itself becomes light. Further, the cutout portion is arranged at a position excluding a portion where the tubular body forms the stiffening portion and a portion where the tubular body is supported by the reinforcing portion. The force applied to the joining member is sufficiently transmitted by the stiffening portion and the reinforcing portion.

Particularly, when the tubular body is an octagonal tube, each of the four adjacent sides sandwiched by the joining sides plays a role of transmitting the force from the flange of the beam steel frame. Further, since the notch is provided at the corner, the weight is reduced. In addition, when the cylindrical body is formed into a cylinder, there is a degree of freedom in the number and positions of beams to be joined. As a mode of the reinforcing portion, when the reinforcing portion is composed of a cross plate and a stiffening portion supporting plate, the cross plate receives the force from the flange and the web of the beam steel frame with the tubular body, the flange and the web. From the joint surface to the opposite side of the tubular body, to the flange and the web of the beam steel frame joined to the opposite side of the tubular body. Further, the stiffening portion support plate, the force from the beam steel frame and the beam main bar, the beam steel frame and the beam steel frame to be joined to the opposite side of the tubular body from the joint surface between the tubular body and the beam steel frame and the reinforcing bar, Sequentially transmit to the main beam.

Further, when the reinforcing portion is arranged in the entire axial direction of the rectangular tube, the reinforcing portion also has a role of transmitting the force from the column between the joined columns. Also,
When the reinforcing portion is configured by a cross plate and a radial plate, the cross plate, the force from the flange and the web of the beam steel, the opposite side of the cylinder from the joint surface between the cylinder and the flange and the web, It is sequentially transmitted to the flange and the web of the beam steel frame joined to the opposite side of the cylindrical body. Further, the radial plate transmits the force from the main beam of the beam to the tubular body from the joint surface between the tubular body and the main beam of the beam, and a part of the force passes through the center of the tubular body,
It is dispersively transmitted to the opposite side of the cylindrical body, and further transmitted to the beam steel frame and the beam main bar joined to the opposite side of the cylindrical body.

Further, the reinforcing portions are formed in a lattice shape, a honeycomb shape,
With a reinforcing plate that leaves an axial through hole that forms a shape selected from a dense circular hole shape, with respect to the force from the beam, in a plane orthogonal to the axial direction of this cylindrical body, Uniform stress transmission distribution paths are formed in many directions. In addition, the force from the pillars is received and dispersed by the high-density reinforcing portion in the cylinder, and is sufficiently transmitted between the pillars to be joined.

In this column-beam joint member, the shape and cross-sectional area of the end face of the column-beam joint member formed by the tubular body, the stiffening portion, and the reinforcing portion are defined as the shape of the end face of the connecting column and By corresponding to the cross-sectional area, the force from the connected column can be efficiently transmitted.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. First, FIGS. 1 to 3 show a first embodiment of the present invention. As shown in FIG. 1A, the pillar / beam joining member 1 is
It is used for the inner column A which does not face the outer peripheral part of the steel frame reinforced concrete structure.

This joining member 1 is, as shown in FIG.
The tubular body 2 and the reinforcing portion 4 provided inside the tubular body 2 are provided, and thus the axial direction through hole 5 is formed in the tubular body 2. Here, the tubular body 2 has a substantially octagonal shape in a plane, and is provided with a stiffening portion 3 and a cutout portion 2a in which a portion other than the upper and lower end portions in the axial direction thereof is cut away, and is entirely cast steel cast. It is shaped like a basket.

Further, among the outer side surfaces of the cylindrical body 2, the non-adjacent 4
The side is the joint side 2b to which the steel beam 10a is joined, and the side adjacent to the joint side 2b is the adjacent side 2c. The stiffening portion 3 has a wall thickness in the vicinity of the corner of the adjacent side 2c of the tubular body 2 that is thickened and extends to the axially upper and lower ends of the tubular body 2. Notch 2a
Are provided between the corners of the tubular body 2 except the axially upper and lower ends of the tubular body 2 and the adjacent side 2c.

The reinforcing portion 4 and the cross plate 4a arranged orthogonally so as to be continuous from the center of the joining side 2b to the opposite side in the tubular body 2 and the joining side 2b in the tubular body 2 are orthogonal to each other. The stiffening part 3 includes a stiffening part support plate 4b arranged continuously from the stiffening part 3 on the opposite side. The axial through hole 5 is formed between the cross plate 4 a, the stiffening part support plate 4 b, and the inner wall of the tubular body 2 in the tubular body 2.

The cross plate 4a is arranged so as to extend the entire length along the axial direction of the joining member 1,
The stiffening part support plate 4b is arranged only in a portion where the stiffening part 3 is formed along the axial direction of the joining member 1. In addition,
The thickness of the stiffening part support plate 4b can be made thinner than that of the cross plate 4a depending on the design.

Then, as shown in FIG. 2A, the beam main bar 11
Is joined to the stiffening portion 3 in the factory so as to be orthogonal to the joining side 2b on the outer surface of the tubular body 2. As shown in FIG. 2 (b), the joint member 1 configured in this way has the steel frame beams 10 a ... Joined to the side surfaces thereof, and the steel frame columns 2 at the upper and lower end surfaces thereof.
0a and 20a join. Furthermore, after arranging the reinforcing bars of the pillars and beams and installing a formwork (not shown), concrete 13 is filled so as to surround the entire joining member 1 integrally with the pillars and beams.

Upper and lower columns (SR
As shown in FIG. 2 (c), the C column 20 and 20 are concrete 13 cast in a square cross section, a steel column 20a embedded in the center thereof, and an outer peripheral portion of the steel column 20a. And the steel column 20.
The a is composed of a cross-shaped web portion 20b and a flange portion 20c at its side end.

A beam (SRC) to be joined to the side surface of the joining member 1.
As shown in FIG. 2 (b), the beam 10 includes concrete 13 cast in a square cross section, a steel beam 10 a embedded in the center thereof, and a beam main bar 11 embedded in the outer peripheral portion of the steel beam 10 a.
And the steel beam is H-shaped steel and the web portion 10
b and flanges 10c at both ends thereof. The joining member 1 is formed by joining the steel frame beams 10a of H-shaped steel so as to face the joining side 2b of the tubular body 2 by a known means, for example, welding or bolts, and further joining the cross plate 4a of the joining member 1. The upper and lower end faces and the web portions 20b of the upper and lower steel frame columns 20a, 20a are butted against each other, and the upper and lower end faces of the joint side 2b of the joint member 1 and the flange portions 2 of the upper and lower steel frame columns 20a, 20a.
0c is abutted against each other and joined by welding.

As described above, the joint member 1 is formed of cast steel as a whole so that the quality of the joint member 1 can be kept uniform. Further, the joint member 1 can be mass-produced, and the joint member 1 can withstand a large force. It is robust. Beam (SRC beam) 10
The force from the column (SRC column) 20 is transferred through the joining member 1,
The joint member 1 is transmitted to other beams and columns, and each of them is shown in detail. The joining member 1 has the following functions.

That is, in the beam (SRC beam) 10, the steel beam 10a mainly transmits to the cylindrical body 2 and the cross plate 4a of the reinforcing portion 4, and from the beam main bar 11 the cylindrical body 2 to which the main bar joins. Is transmitted to the stiffening portion support plate 4b and the cylindrical body 2 via the stiffening portions 3 on both sides of the adjacent side 2c. In the pillar (SRC pillar) 20, the steel frame pillar 20a transmits to the joint side 2b of the cylindrical body 2 and the cross plate 4a.

Therefore, the stress distribution of the entire joining member 1 is dispersed according to the rigidity of the tubular body 2 and its reinforcing portion 4.
As described above, the joining member 1 supports forces from all directions, and the reinforcing portion 4 inside the joining member 1 supports the beam (SRC beam) 1
0 and columns (SRC columns) 20 are transmitted to prevent destruction of the steel reinforced concrete structure.

Furthermore, by providing the through holes 5 in the axial direction so as to extend in the entire axial direction, the fluidity of the concrete in the joining member 1 is improved when performing the concrete pouring work. Further, in the joining member 1, by preliminarily assembling the stiffening part 3 and the beam main bar 11 in the factory, the welding work on the site can be simplified and the work accuracy is improved. The joining may be closed welding or pressure welding in the field.

In FIG. 3, opposite steel frame beams 10a,
The joining member 1 used when there is an up / down setting step between 10a is shown. The outer surface of the joining member 1 excluding the cutout portion 2a of the tubular member 2 extends long in the axial direction so that the flange portions 10c, 10c of the two opposing steel frame beams 10a, 10a having a set step in the vertical direction come into contact with each other. I'm here. In addition, the beam main bars 11 arranged on the upper and lower portions of the upper flange portion 10c of the steel beam 10a below the vertical setting step, and the lower flange portion 10
The beam main bar 11 on the upper side of c is joined to the stiffening part 3 of the tubular body 2, and the beam main bar 11a on the lower side of the lower flange part 10c penetrates the web part 20b of the lower steel column 20a, The tip portion is bent toward the center of the joining member 1.

Further, the steel beam 10a above the set step
Beam main bar 1 disposed above and below the lower flange portion 10c
1, 11 and the upper beam main bar 11 of the upper flange part 10c are joined to the stiffening part 3 of the tubular body 2, and the beam main bar 11b arranged in the upper part of the upper flange part 10c is a lower steel frame. The tip portion is bent toward the center of the joining member 1 while penetrating the web portion 20b of the column 20a.

As described above, the joining member 1 can be joined to the stepped beam (SRC beam) 10 by forming the outer surface of the cylindrical body 2 excluding the notch 2a in the axial direction to be long in accordance with the set step. FIG. 4 shows a second embodiment of the present invention. In this embodiment, the reinforcing portion 4 is composed of a cross plate 4a and a radial plate 4c.

The stiffening portion 3 is formed by thickening the vicinity of the corner of the adjacent side 2c of the tubular body 2 and extends at both axial ends of the tubular body 2. The radial plate 4c is arranged in a phase rotated by 45 degrees about the crossing center of the cross plate 4a as an axis, and the axial length thereof is the stiffening portion support plate 4b of the first embodiment. Similar to steel beam 1
0a is only applied to the vicinity of the flange contact portion.

The radial plate 4c can be thinner than the cross plate 4a depending on the design. Here, for example, assuming that a force is applied from the beam (SRC beam) 10 toward the center direction of the joint portion 1 via the joint side 2b of the tubular body 2, the following is performed.

That is, the applied force is transmitted mainly through the center of the cross plate 4a to the joining side 2b on the opposite side, and from the center of the cross plate 4a, the radial plate on the front side in the force loading direction. 2 of 4c
The adjacent side 2 is formed by the sheet portion and the two portions of the radial plate 4c on the side beyond the center of the cross plate 4a.
It is transmitted to the cylindrical body 2 other than c.

The force transmitted to the joint side 2b on the opposite side of the tubular body 2 is supported by the web portion 10b of the steel beam 10a which is joined to the tubular body 2, and is the same as in the first embodiment. Since the rigid portion 3 supports both ends of the adjacent side 2c, the adjacent side 2c has sufficient strength to support the force transmitted from the radial plate 4c. In this way, the reinforcing portion 4 includes the cross plate 4a and the radial plate 4
By being configured with c, the number of plates is smaller than in the case of the first embodiment, so that the entire joint portion is lighter in weight and the handling in the work is easy.

In this case, in the case of the first embodiment, the axial direction of the tubular body 2 along the axial direction except the cutout portion 2a provided in the tubular body 2 is lengthened in the axial direction as in the case of the first embodiment. Two beams facing each other (SRC beams) with a set step up and down like
It can also be used for 10, 10. 5 (a) to 5 (d) show third to sixth embodiments in which the mode of the reinforcing portion 4 is changed.

In the case of FIG. 5 (a), the reinforcing portion 4 has a lattice shape and is formed in the plane shape other than the square axial through-holes 5 which are substantially evenly distributed in the plane shape. .
Thus, the reinforcing portion 4 extends inside the tubular body 2 in the entire axial direction or in part thereof in some cases. Figure 5
In the case of (b), the reinforcing portion 4 is formed in the plane shape other than the large-circle axial-direction through holes 5 and the small-circle axial-direction through holes 5 substantially evenly arranged. Thus, this reinforcing portion 4
Inside the cylindrical body 2, it extends in the entire axial direction or in a part thereof in some cases.

In the case of FIG. 5C, the reinforcing portion 4 is formed in addition to the regular octagonal axial through holes 5 and the small circular axial through holes 5 which are substantially evenly distributed in a planar shape. ing. Thus, the reinforcing portion 4 extends inside the tubular body 2 in the entire axial direction or in part thereof in some cases. in this case,
The regular octagonal axial through hole 5 may be replaced with a regular hexagon or the like. Further, it has been confirmed that the action does not change even if the small circular axial through hole 5 is formed as a diamond-shaped axial through hole 5.

In the case of FIG. 5 (d), the reinforcing portion 4 has a honeycomb shape and is formed in the plane shape other than the regular hexagonal axial through holes 5 which are substantially evenly distributed. ing. Thus, the reinforcing portion 4 extends inside the tubular body 2 in the entire axial direction or in part thereof in some cases. In the above, since the reinforcing portions 4 are densely arranged,
The thickness of the reinforcing plate 4d can be reduced.

Also in these cases, as in the case of the first embodiment, by extending the outer side surface other than the cutout portion 2a in the axial direction, two beams (S) facing each other having a set step vertically are formed.
It can also be used for RC beams 10 and 10. By forming the reinforcing portion 4 peculiar to casting in this way, the joint member 1 is effective in dispersing the strong horizontal force and vertical force generated in the column-beam joints of high-rise buildings, etc. It also prevents brittle fracture of the structure.

Based on FIGS. 6A, 6B and 6C,
The seventh and eighth embodiments of the present invention will be described. This pillar-beam joining member 1 is used for a side pillar B facing the outer peripheral portion of a steel-framed reinforced concrete structure as shown in FIG. 6 (a). First, the shape will be described with reference to the seventh embodiment of FIG. 6B. The tubular body 2 here has a modified hexagonal planar shape.

That is, the non-bonding side 2d is the longest side of the hexagon. 90 degrees from both ends, the first and second
The joint sides 2b of the
The adjacent sides 2c are arranged so as to extend from the respective extended ends of the joint sides 2b facing each other at an angle of 45 degrees, and the third joint sides 2b are joined to the extended ends of the respective adjacent sides 2c. ing. The tubular body 2 has the above-described planar shape, the stiffening portions 3 are provided at the respective corners of the tubular body 2, and the cutout portions 2a (shown in the figure) are provided between the upper and lower ends of the tubular body 2 in the axial direction. Not) is provided to form a basket shape.

The stiffening portion 3 is formed by thickening the vicinity of each corner of the cylindrical body 2 to facilitate the connection of the beam main bar 11.
It extends in part or the entire length of the cylindrical body 2 in the axial direction. The reinforcing portion 4 is a cross plate 4a that is arranged orthogonally to the joining side 2b and the non-joining side 2d in the tubular body 2 so as to be continuous to the opposite side.
And a stiffening part support plate 4b that extends from the stiffening part 3 in the tubular body 2 and is continuous so as to be orthogonal to the joining side 2b and the non-joining side 2d.

FIG. 6 (c) shows an eighth embodiment, which is similar to the seventh embodiment in that the cylindrical body 2 has a cage shape, and the reinforcing portion 4 is adjacent to the inside of the cylindrical body 2. It is composed of a cross plate 4a, a radial plate 4c extending concentrically and joined to the center of the side 2c and the longest non-joining side 2d, and the cross plate 4a. In this case also, the first
Similar to the case of the embodiment, by making the outer side surface other than the cutout portion 2a longer in the axial direction, it is possible to use it for two beams (SRC beams) 10 and 10 which face each other and have a step difference set up and down.

Thus, in this embodiment, the side pillar B of the structure is used.
When applied to, the same action and effect as those of the first embodiment can be obtained. The ninth and tenth embodiments of the present invention will be described with reference to FIGS. 7 (a), (b) and (c). This pillar-beam joining member 1 is used for a corner pillar C facing the outer peripheral portion of a steel-framed reinforced concrete structure as shown in FIG. 7 (a).

First, the shape will be described with reference to the ninth embodiment of FIG. 7B. The cylindrical body 2 here has a modified pentagonal shape in plan view. That is, first, the two long sides intersecting with the L-shape are the non-joining sides 2d, the two short sides extending from each end at an angle of 90 degrees are the joining sides 2b, and the extending ends of the respective joining sides 2b. The adjacent side 2c is joined to.

The tubular body 2 has the above-mentioned planar shape, and the stiffening portions 3 are provided at the respective corners of the tubular body 2 and the notches 2a are provided between the upper and lower ends of the tubular body 2 in the axial direction (not shown). It is formed into a basket shape. The stiffening portion 3 is the non-joining side 2 of the tubular body 2.
The vicinity of each corner, excluding the corner which is the intersection of d and 2d, is thickened and extends to both ends of the cylindrical body 2 not formed.

The reinforcing portion 4 is joined with the cross plate 4a, which is arranged orthogonally so as to be continuous with the joining side 2b and the non-joining sides 2d, 2d which are opposite sides in the tubular body 2, in the tubular body 2. Side 2b
2d extending from the stiffening portion 3 on the side adjacent to the
Stiffener support plate 4 arranged to be joined vertically to the
b. FIG. 7 (c) shows a tenth embodiment. This is a cross plate in which the cylindrical body 2 has a cage shape and the reinforcing portion 4 is arranged in the same manner as in the ninth embodiment. Four
a and the cylindrical body 2 are arranged so as to extend straight from the center of the adjacent side 2c through the intersection center of the cross plate 4a and to be joined to the corner portion which is the intersection of the non-joined sides 2d and 2d. And a radial plate 4c which is arranged so as to be joined to the non-joined sides 2d, 2d from the center of the intersection of the cross plate 4a perpendicular to the plate.

Also in this case, as in the case of the first embodiment, by lengthening the outer side surfaces other than the cutout portion 2a in the axial direction, two beams (SRC) facing each other having a set step vertically are provided.
Beams 10, 10 can also be used. in this way,
When this embodiment is applied to the corner post of a structure, the same operation and effect as the first embodiment can be obtained.

[0056]

According to the present invention, the column-beam joining member used in the steel-framed reinforced concrete structure is entirely made of cast steel, and the stiffening part and the reinforcing part are formed.・ The structure that supports the cylindrical body of the beam joining member as a whole, and the stiffening part receives the main beam of the beam, and the reinforcing part further supports this, so that it can withstand forces in all directions. On the other hand, it is robust. In addition, since the manufacturing can be performed without welding, labor saving can be achieved.

Further, the axial through hole in the structure enhances the concrete filling property when pouring concrete. Furthermore, the notch contributes to weight reduction of the whole. Further, the stiffening portion is effective in increasing the positioning accuracy of the beam joint. Further, it is possible to deal with a beam having a set step without taking a special form.

[Brief description of drawings]

1A and 1B are views showing a first embodiment of the present invention, in which FIG. 1A is a layout view of a joining member 1 in a steel-framed reinforced concrete structure, and FIG. 1B is a perspective view of the joining member 1. is there.

2A and 2B are views showing a first embodiment of the present invention, FIG. 2A is a plan view showing an example of construction of the joining member 1, and FIG. 2B is a sectional view taken along line AA of the joining member 1. The figure and the figure (c) are BB sectional views of the figure (b).

FIG. 3 is a view showing a first embodiment of the present invention, and is a side sectional view showing a construction example in which a beam joined to a joining member has an up / down set step.

FIG. 4 is a plan view showing a second embodiment of the present invention.

FIG. 5 is a plan view showing third to sixth embodiments of the present invention, FIG. 5 (a) is the third embodiment, and FIG. 5 (b) is the fourth embodiment.
Example, FIG. 7C is a fifth example, and FIG. 7D is a sixth example.

FIG. 6 is a view showing seventh and eighth embodiments of the present invention,
The figure (a) is a layout of the joining member 1 in a steel-framed reinforced concrete structure, the figure (b) is a plan view of the joining member 1 of a 7th Example, the figure (c) is a figure of 8th Example. Joining member 1
FIG.

FIG. 7 is a view showing ninth and tenth embodiments of the present invention, in which FIG. 7 (a) is a layout view of a joining member 1 in a steel reinforced concrete structure, and FIG. 7 (b) is a ninth embodiment. A plan view of the joining member 1 of FIG. 11 (c) is a plan view of the joining member 1 of the tenth embodiment.

[Explanation of symbols]

 A Inner pillar B Side pillar C Corner pillar 1 Joining member 2 Cylindrical body 2a Cutout 2b Joining side 2c Adjacent side 2d Non-joining side 3 Stiffening section 4 Reinforcing section 4a Cross plate 4b Stiffening section supporting plate 4c Radial plate 4d Reinforcing plate 5 Axial through hole 10 Beam (SRC beam) 10a Steel beam 10b Web part 10c Flange part 11 Beam main bar 11a Beam main bar 11b Beam main bar 12 Column main bar 13 Concrete 20 column (SRC column) 20a Steel frame column 20b Web part 20c Flange part

Claims (8)

[Claims] 1. A column-beam joining member comprising a tubular body,
The tubular body is provided with a stiffening portion at a position to receive the main beam, and the tubular body and the stiffening portion are integrally molded of cast steel, a column for a steel reinforced concrete structure, Beam joining member. 2. A column-beam joining member comprising a tubular body,
The tubular body is provided with a stiffening portion at a position for receiving the main beam of the beam, and further, a reinforcing portion for supporting the tubular body is formed in the tubular body while leaving an axial through hole. A column-beam joining member for a steel-framed reinforced concrete structure, wherein the body, the stiffening portion, and the reinforcing portion are integrally molded of cast steel. 3. The column / beam joining member according to claim 1, wherein the stiffening portion is formed by increasing the wall thickness of the tubular body, and the stiffening portion extends in the axial direction of the tubular body. A column / beam joining member for steel-framed reinforced concrete structures, which is characterized by extending partly or over the entire length. 4. The pillar / beam joint member according to claim 1, wherein the stiffening portion has a beam main bar fixedly held therein. Joining member. 5. The column / beam joining member according to claim 1, wherein the tubular body is provided with a notch portion between both ends in the axial direction, and the notch portion is the stiffening of the tubular body. A plurality of parts forming a part and a plurality of the cylinders are arranged at positions excluding the part supported by the reinforcing part, which is a joint member for a pillar / beam for a steel reinforced concrete structure. . 6. A column-beam joining member comprising a tubular body,
A stiffening portion is provided in the tubular body at a position to receive the beam main bar, and a reinforcing portion is formed in the tubular body while leaving an axial through hole, and the reinforcing portion is the tubular body. A cross plate extending along the entire length in the axial direction of the cylinder so as to support the body from the inside thereof, and the stiffening portion at a position facing each other through the cylinder are mutually supported from inside the cylinder. And a stiffening part support plate that extends over the entire length or part of the axial direction of the tubular body, and the tubular body, the stiffening portion, and the reinforcing portion are cast steel. Columns for steel reinforced concrete structures, characterized by being integrally molded with
Beam joining member. 7. A column-beam joining member comprising a tubular body,
A stiffening portion is provided in the tubular body at a position to receive the beam main bar, and a reinforcing portion is formed in the tubular body while leaving an axial through hole, and the reinforcing portion is the tubular body. A cross plate extending over the entire length in the axial direction of the tubular body so as to support the body from the inside thereof, and radially formed in the tubular body concentrically with the cross plate to support the tubular body. And a radial plate extending over the entire length or a part of the tubular body in the axial direction, and the tubular body, the stiffening portion, and the reinforcing portion are integrally molded of cast steel. A column / beam joint member for steel reinforced concrete structures, which is characterized in that 8. A column-beam joining member comprising a tubular body,
A stiffening portion is provided in the cylindrical body at a position for receiving the main beam of the beam, and a reinforcing portion is formed in the cylindrical body while leaving an axial through hole. A honeycomb plate or a reinforcing plate extending along the entire axial length of the tubular body or a part thereof, leaving the axial through-holes having a shape selected from the shape of a dense hole. A column-beam joining member for a steel-framed reinforced concrete structure, wherein the tubular body, the stiffening portion, and the reinforcing portion are integrally molded of cast steel.