JP7627246B2 - Beam-column joint structure - Google Patents

Description

The present invention relates to an earthquake-resistant column-beam joint structure.

A technique is known in which a connector is attached to a wooden column member and the wooden column member and beam member are joined via this connector.

For example, the column-beam joint structure in Patent Document 1 below includes a lower column member as a wooden column member, a joint jig fixed to the upper end surface of the lower column member, a concrete hardened body as a cement-based hardened body that covers the joint jig, and a steel beam that is joined to the lower column member via the joint jig. It is disclosed that by adopting such a structure, it is possible to improve the fire resistance of the joint between the wooden column member and the beam member.

The joint structure of a wooden beam in the following Patent Document 2 comprises a pillar, a wooden beam, a concrete joint formed at the joint between the pillar and the wooden beam, and a fastener (lag screw bolt) with one end embedded in the wooden beam and the other end protruding from the end face of the wooden beam and embedded in the joint. It is disclosed that by adopting such a structure, the degree of fixation of the wooden beam is increased and construction errors can be easily absorbed.

In the composite structure of steel and wood material described in Patent Document 3 below, wood material is attached to the four flanges of the cross H-shaped steel column, and a pair of wood materials are attached to the H-shaped steel beam. The cross H-shaped steel column and the H-shaped steel beam are joined by screwing the flanges of the cross H-shaped steel column to the end plates welded to the end faces of the H-shaped steel beam with high-strength bolts. At the same time, filler wood material is attached to the joint between the two after the fact, and a buckling restraint brace is provided between the cross H-shaped steel column and the H-shaped steel beam.

The connection between the cross H-shaped steel column and the H-shaped steel beam is achieved by using a welded end plate on the end face of the H-shaped steel beam and screwing it to the flange of the cross H-shaped steel column with a high-strength bolt, which makes the column-beam connection a semi-rigid connection rather than a rigid one, and in the event of a medium or large earthquake, the connection will rotate as a fulcrum, preventing damage to the cross H-shaped steel column and the H-shaped steel beam.

In addition, a buckling restraint brace is provided between the H-shaped steel beams and the cross-shaped steel columns. During a medium or large earthquake, the buckling restraint brace is activated to prevent the cross H-shaped steel columns and the H-shaped steel beams from becoming plastic, so the cross H-shaped steel and the H-shaped steel behave elastically, making them easy to reuse as materials.

The column-beam joint structure in Patent Document 4 below is formed by joining wooden column members and beam members via joint members made of a material harder than wood, and includes connecting steel members for connecting the upper and lower column members, which are provided on the upper and lower end faces of the joint members via axial force transmission members, steel bars inserted vertically inside the joint members and joined at their ends to the connecting steel members, and steel bars inserted vertically inside the upper and lower column members, which are fixed with screws or adhesives, and joined at their ends to the connecting steel members, and the steel bars are used to join the opposing members. It is disclosed that by adopting such a structure, the failure type of the joint can be set arbitrarily, improving construction efficiency and ensuring construction accuracy.

The wooden beam joint structure in Patent Document 5 below includes a column-beam joint section made of a steel frame section and a concrete section, and a first wooden beam with a full thread (bolt) protruding from the end of the first beam joined to the column-beam joint section. It is disclosed that by adopting such a structure, the column-beam joint section can be made highly rigid, and a wooden beam can be easily joined to the column-beam joint section.

JP 2014-109150 A JP 2020-101020 A JP 2013-130021 A JP 2020-002641 A JP 2020-111930 A Patent No. 6351194

However, the above-mentioned patent documents each have the following problems. For example, Patent Documents 1, 2, and 5 have structures in which the joints are solidified with concrete, but because it takes time for the concrete to harden after being poured into the joints, there is a problem that construction time tends to be long.

The structure in Patent Document 3 overlaps the surface of the flange with the surface of the end plate and fastens them together with high-strength bolts, which means that the fastening method does not absorb construction errors and it is difficult to ensure an escape route for force in the event of an earthquake. In addition, because Patent Document 3 is based on a brace structure, it is difficult to adopt for structures other than brace structures (such as rigid frame structures).

The structure in Patent Document 4 is a composite system in which wooden column members and beam members that support axial force are connected to opposing members made of a material harder than wood with steel rods, which means that the column-beam joints, which are a narrow space, become crowded, making it difficult to work with. If reinforced concrete is selected as a material harder than wood for the wooden column members and beam members to improve workability, this will result in the problem that the construction time for the building will tend to be long because it takes time for the concrete to harden after it is poured into the joints.

The present invention was made to solve the above problems, and its main objective is to provide a column-beam joint structure with excellent seismic performance. It also has a secondary objective of improving construction workability and shortening construction time.

The aspects of the means for solving the above problems are as follows.
[First aspect]
A pillar member;
A first connector attached to an end of the post member;
A wooden beam member;
A second connector attached to an end of the wooden beam member;
having
The pillar member is any one of a wooden pillar member, a steel pillar member, a reinforced concrete pillar member, and a steel reinforced concrete pillar member,
The first connector is made of steel and has a column portion extending in the vertical direction and a first protruding portion protruding outward from the column portion and extending in the vertical direction,
The second connector is made of steel and has a second protruding portion protruding toward the first connector and extending in the vertical direction,
A column-beam joint structure, characterized in that the first protrusion and the second protrusion are connected by bolt fastening.

[Action and Effect]
By connecting the first protrusion and the second protrusion with a bolt, the column member and the wooden beam member can be easily joined and the joint can be stabilized, thereby improving earthquake resistance.

[Second aspect]
The first connector is
A column portion extending in the vertical direction;
A plate-shaped vertical wall portion that constitutes the column portion and extends in the vertical direction and faces the wooden beam member;
A first upper protrusion protruding outward from an upper portion of the vertical wall portion and extending in a horizontal direction;
a first lower protrusion protruding outward from a lower portion of the vertical wall portion and extending horizontally;
a first intermediate protrusion protruding outward from an intermediate portion of the vertical wall portion and extending in the up-down direction;
The second connector is
A vertical plate portion attached to an end surface of the wooden beam member;
A second upper protrusion protruding outward from an upper portion of the vertical plate portion and extending in a horizontal direction;
A second lower protrusion protruding outward from a lower portion of the vertical plate portion and extending in a horizontal direction;
a second intermediate protrusion protruding outward from the intermediate portion of the vertical plate portion and extending in the up-down direction;
The first upper protrusion and the second upper protrusion,
The first lower protrusion and the second lower protrusion,
The first intermediate protrusion and the second intermediate protrusion,
2. A column-beam joint structure according to claim 1, characterized in that each is connected by bolt fastening.

[Action and Effect]
By fixing the first connector and the second connector at the upper, middle and lower parts, respectively, the connection between the column member and the wooden beam member can be stabilized, thereby improving earthquake resistance performance.
Another advantage of fixing the upper, middle and lower parts is that the upper and lower parts resist the tensile and compressive forces caused by bending of the material, for example, the rolled bolt part connecting the lag screw bolt is only tensile [for example, the upper part], while the compression [lower part] is the compressive force pressing the steel plate against the wood, balancing the forces. The middle part has a mechanism to transmit the shear force generated within it.
The wooden side has a dowel pin and the steel shaft side has an intermediate section. By clarifying the force transmission mechanism in this way, the earthquake resistance is also clear.

[Third aspect]
A column-beam connection structure as described in the first or second aspect, in which a high-strength bolt is used for at least one of the screw-threaded connection between the first upper protrusion and the second upper protrusion, and the screw-threaded connection between the first lower protrusion and the second lower protrusion, in joining the first fastener and the second fastener.

[Action and Effect]
By using high-strength bolts for at least one of the screw-connection between the first upper protrusion and the second upper protrusion, and the screw-connection between the first lower protrusion and the second lower protrusion, earthquake resistance can be improved. That is, unlike other general bolt connections, high-strength bolts are configured such that the diameter of the bolt insertion hole is slightly longer than the diameter of the bolt, and the connection is made by friction. Therefore, it is acceptable for the bolt to shift slightly inside the bolt insertion hole during an earthquake. In this way, the bolt can move slightly to absorb construction errors and ensure reliable fixation.

[Fourth aspect]
A column-beam connection structure as described in embodiment 1 or 2, in which, in the first fastener, at least one of the first upper protrusion and the first lower protrusion is a CT steel beam, which is fixed to the column portion with a high-strength bolt or a one-sided bolt.

[Action and Effect]
In the first fastener, at least one of the first upper protrusion and the first lower protrusion is a CT steel (cut tee), which is fixed to the column with a high-strength bolt or a one-sided bolt, so that the diameter of the bolt insertion hole is slightly longer than the diameter of the bolt, and the fastener is joined by friction. Therefore, it is possible to allow the bolt to be slightly displaced inside the bolt insertion hole during an earthquake. The mechanism by which the high-strength bolt absorbs vibration during an earthquake is described in the section on the effects of the third aspect, so it is not described here. In addition, in order to reduce the out-of-plane deformation of the flange part or the skin plate of the square steel pipe in the cross-shaped steel frame part at the split tee joint, it is desirable to insert a diaphragm (not shown) into the cross-shaped steel frame part or the square steel pipe.

[Fifth aspect]
A pillar member;
A first connector attached to an end of the post member;
A wooden beam member;
A second connector attached to an end of the wooden beam member;
having
The pillar member is any one of a wooden pillar member, a steel pillar member, a reinforced concrete pillar member, and a steel reinforced concrete pillar member,
The first connector is made of steel and has a first protruding portion that protrudes outward from the column member and extends in the vertical direction facing the wooden beam member;
The second connector is made of steel and has a second protruding portion protruding toward the first connector and extending in the vertical direction,
A pair of connecting plates is provided across each surface of the first protrusion and each surface of the second protrusion, and the pair of connecting plates are frictionally fastened to each other by a bolt penetrating the first protrusion and the second protrusion.
A column-beam joint structure characterized by:

[Action and Effect]
By fixing the first connector and the second connector at the upper, middle (corresponding to the first protrusion and the second protrusion) and lower parts, respectively, the connection between the column member and the wooden beam member can be stabilized, and the earthquake resistance performance can be improved.
In addition, by using upper and lower connecting plates and fastening them with bolts using friction, the connection is strong and the earthquake resistance is high.

[Sixth Aspect]
The column-beam connection structure described in the second aspect, wherein the column member is a wooden column member, and in attaching the first fastener to the wooden column member and/or the second fastener to the wooden beam member, the first fastener and/or the second fastener are attached with a bolt or nut to a lag screw bolt embedded in a hole formed in the end of the wooden column member and/or the wooden beam member.
In addition, when the column member is not a wooden column member, for example, in a steel column member or a steel reinforced concrete column member, the first joint may be directly extended to the column member, or the first connector may be directly welded to a steel part built into the steel column member or the steel reinforced concrete column member. Furthermore, in the case of a reinforced concrete column member, there is a method of attaching the first connector to the reinforced concrete column member using a reinforcing bar with a threaded end instead of a lag screw bolt.

[Action and Effect]
Embedding a lag screw bolt into the end of a wooden column member and/or a wooden beam member generally results in a strength-resistant joint that does not cause deformation in this portion. However, if a structure is selected in which a rolled bolt with toughness is embedded inside the lag screw bolt, such as the lag screw bolt shown in Patent Document 6, the lag screw bolt will deform significantly inside the wooden column member and/or the wooden beam member when an earthquake occurs, and this deformation can absorb the shaking.

[Seventh aspect]
A column-beam connection structure as described in the second or sixth aspect, in which, in attaching the first fastener to the wooden column member and/or the second fastener to the wooden beam member, the lag screw bolt is attached with a rolled bolt via a sleeve, and the rolled bolt is caused to yield and absorb energy.
Note that the method of fastening via sleeves only applies to wooden components (pillars and beams).

[Action and Effect]
Since the end of the wooden beam and the second connector are fixed with a rolled bolt via a sleeve, the end of the wooden beam moves horizontally away from the second connector when an earthquake occurs, suppressing the transmission of lateral vibrations during an earthquake and preventing damage to the end of the wooden beam. In addition, the use of a sleeve can provide high rigidity.
When the end of the wooden column member and the first connector are fixed with a rolled bolt via a sleeve, the transmission of lateral shaking can be suppressed.
It should be noted that lag screw bolts are fastened to wood, and do not have toughness performance, except for the lag screw bolt shown in Patent Document 6. To provide toughness, a rolled bolt is attached and made to yield there, but in order to maintain a certain degree of elongation after yielding, a sleeve tube with sufficient strength can be passed through it, and the sleeve tube can be installed to take the reaction force of the rolled bolt that causes the compressive force to yield in tension.

[Eighth aspect]
A column-beam joint structure as described in the second or sixth aspect, in which, in attaching the first fastener to the wooden column member and/or the second fastener to the wooden beam member, the lug screw bolt is attached with a rolled bolt via a sleeve, the outside of the sleeve is processed so that the rolled bolt can be fixed, and the rolled bolt is caused to yield in not only tension but also compression, thereby enhancing energy absorption performance.
Furthermore, only wooden components (pillars and beams) can be fastened via the sleeve.

[Action and Effect]
The outside of the sleeve is machined to allow the rolled bolt to be fixed thereto, thereby increasing the energy absorption capacity of the rolled bolt by allowing it to yield in compression as well as tension.

[Ninth aspect]
A column-beam joint structure as described in the second or sixth aspect, wherein, in attaching the first connector to the wooden column member and/or the second connector to the wooden beam member, a dowel pin is provided on the first connector and/or the second connector, and the dowel pin is embedded in the end of the wooden column member and/or the wooden beam member.

[Action and Effect]
By configuring the dowel pin on the inner wall surface of the second connector so as to be embedded in the end of the wooden beam member, it is possible to transmit shear forces during an earthquake.

[Tenth Aspect]
The first connector includes the first protrusion and
A first upper protrusion protruding outward from an upper portion of the steel column member above the first protrusion and extending horizontally;
A first lower protruding portion protruding outward from a lower portion of the steel column member below the first protruding portion and extending horizontally;
It has
The second connector includes a vertical plate portion extending in the vertical direction provided on the end surface of the wooden beam member, and a second protruding portion protruding outward from the vertical plate portion and extending in the vertical direction.
a second upper protrusion protruding outward from an upper portion of the vertical plate portion above the second protrusion and extending in a horizontal direction;
a second lower protrusion protruding outward from a lower portion of the vertical plate portion below the second protrusion and extending in a horizontal direction;
It has
Upper connecting plates are provided in a sandwiched state across each surface of the first upper protrusion and each surface of the second upper protrusion, and the upper connecting plates are fastened to each other by bolts passing through the first upper protrusion and the second upper protrusion,
A lower connecting plate is provided in a sandwiched state across each surface of the first lower protrusion and each surface of the second lower protrusion, and the lower connecting plates are fastened to each other by a bolt penetrating the first lower protrusion and the second lower protrusion,
The column-beam joint structure according to the fifth aspect.

The third to ninth aspects can be applied to the fifth and tenth aspects to provide a column-beam joint structure for joining the first connector or the second connector to a wooden member of a column member or a wooden beam member.
Furthermore, although not shown in detail, GIR (Glued-in-Rod Joint) (joint using rebar and adhesive) can also be used.

As explained above, the present invention can provide a column-beam joint structure with excellent earthquake resistance. It can also shorten the construction time.

FIG. 1 is a perspective exploded view of a cross-column split-tee joint structure according to an embodiment of the present invention (the column members are represented as wooden column members). FIG. 2 is a diagram showing an example of a column-beam joint structure of the present invention, and is a plan exploded view of a cross column split tee joint structure. Fig. 2 is a front exploded view of a cross-column split-tee joint structure according to an embodiment of the present invention (the column member is represented as a wooden column member). FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique view of the joint portion of a cross column split tee joint structure. FIG. 2 is a diagram showing an example of a column-beam joint structure of the present invention, and is a front view of a joint portion of a cross column split tee joint structure. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique exploded view of a cross column split tee joint (rolled bolt joint) structure. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is a plan exploded view of a cross column split tee joint (rolled bolt joint) structure. 7 is a front exploded view of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column-beam joint structure of the present invention. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique view of a joint portion of a cross column split tee joint (rolled bolt joint) structure. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is a front view of a joint having a cross column split tee joint (rolled bolt joint) structure. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is a front explanatory diagram of a joint portion of a cross column split tee joint (rolled bolt joint) structure. FIG. 1 is a perspective exploded view of a column-beam joint structure according to an embodiment of the present invention (the column members are represented as wooden column members). FIG. 2 is a diagram showing an example of a column-beam joint structure of the present invention, and is a plan exploded view of a column-split-tee joint structure. 14 is a front exploded view of a column-beam joint structure according to an embodiment of the present invention, taken along line 14-14 in FIG. 13. (The column members are represented as wooden column members.) FIG. 1 is a perspective exploded view of a column-beam joint structure according to an embodiment of the present invention, showing a column-split-tee joint (rolled bolt joint) structure (the column member is shown as a wooden column member). FIG. 2 is a diagram showing an example of a column-beam joint structure of the present invention, and is a plan exploded view of a column-split-tee joint (rolled bolt joint) structure. 17 is a front exploded view of a column-beam joint structure (rolled bolt joint) according to an embodiment of the present invention. (The column member is represented as a wooden column member.) FIG. 1 is a perspective view showing an example of a beam-column joint structure of the present invention, and shows a joining method other than a lag screw bolt (GIR joining using an adhesive) (Type A). FIG. 13 is a diagram showing an example of a beam-column joint structure of the present invention, and is a perspective view from another viewpoint showing a joining method (GIR joining using an adhesive) (Type A) other than a lag screw bolt. FIG. 13 is a diagram showing an example of a beam-column joint structure of the present invention, and is an oblique view from another viewpoint showing a joining method (GIR joining using an adhesive) (Type B) other than a lag screw bolt. FIG. 13 is a diagram showing an example of a beam-column joint structure of the present invention, and is an oblique view from another viewpoint showing a joining method (GIR joining using an adhesive) (Type B) other than a lag screw bolt. FIG. 13 is a diagram showing an example of a beam-column joint structure of the present invention, and is a diagram showing a method of forming a pilot hole in a joining method other than a lag screw bolt (GIR joining using an adhesive). FIG. 13 is a diagram showing an example of a beam-column joint structure of the present invention, and is a diagram showing a method of forming a pilot hole in a joining method other than a lag screw bolt (GIR joining using an adhesive). FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique exploded view of a cross column split tee (dog-bone steel frame) joint structure. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is a plan exploded view of a cross column split tee (dog-bone steel frame) joint structure. 25 is a front exploded view of a cross column split tee (dog-bone steel frame) joint structure, showing an example of the column-beam joint structure of the present invention. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique exploded view of a cross column split tee (dog-bone steel frame) joint structure. 26 is a view showing an example of the column-beam joint structure of the present invention, which is a plan exploded view of a cross column split tee (dog-bone steel frame) joint structure. FIG . 1 is a front exploded view of a cross column split tee (dog-bone steel frame) joint structure, showing an example of a column-beam joint structure of the present invention. FIG . 1 is a perspective exploded view showing an example of a column-beam joint structure of the present invention, showing a cross column drift pin joint structure. FIG. 2 is a plan exploded view showing an example of a column-beam joint structure of the present invention, showing a cross column drift pin joint structure. 31 is a front exploded view of a cross-column drift pin joint structure, showing an example of the column-beam joint structure of the present invention. FIG . 2 is a perspective exploded view showing an example of a column-beam joint structure of the present invention, showing a steel pipe column drift pin joint structure. FIG. 2 is a plan exploded view showing an example of a column-beam joint structure of the present invention, showing a steel pipe column drift pin joint structure. 34 is a front exploded view of a steel pipe column drift pin joint structure, showing an example of the column-beam joint structure of the present invention. FIG. 2 is a perspective exploded view showing a drift pin joint, illustrating an example of a column-beam joint structure of the present invention. This figure shows an example of a column-beam joint structure of the present invention, and is a partial front view of a structure in which a specially shaped fixing hardware (fixing member) is attached, in which a thread is cut on the outside of a sleeve and a rolled bolt is fixed to it with nuts on both sides. This figure shows an example of a column-beam joint structure of the present invention, and is a partially exploded exploded view of a structure in which a specially shaped fixing hardware (fixing member) is attached, in which a thread is cut on the outside of a sleeve and a rolled bolt is fixed to it with nuts on both sides. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, and is an oblique exploded view of a joint structure equipped with a first connector having a square tubular steel column member. FIG. 1 is a diagram showing an example of a column-beam joint structure of the present invention, which is a joint structure equipped with a first connector having a square tubular steel column member, and is an oblique exploded view having a dogbone portion at the second joint.

The present invention will be explained below by showing embodiments.
In addition, the same reference numerals in the drawings shown in the embodiments basically have the same members and functions.

(Embodiment 1)
(Column-beam joint structure: cross-column split-tee (T) joint structure)
Fig. 1 is a diagram showing an example of the column-beam joint structure of the present invention, and is a perspective exploded view of a joint structure using a cross-column split-tee joint. Fig. 2 is a diagram showing an example of the column-beam joint structure of the present invention, and is a plan exploded view of the joint structure using a cross-column split-tee joint. Fig. 3 is a diagram showing an example of the column-beam joint structure of the present invention, and is a front exploded view of the joint structure using a cross-column split-tee joint. Fig. 4 is a diagram showing an example of the column-beam joint structure of the present invention, and is a perspective view of a joint portion of the joint structure using a cross-column split-tee joint. Fig. 5 is a diagram showing an example of the column-beam joint structure of the present invention, and is a front view of a joint portion of the joint structure using a cross-column split-tee joint.

As shown in FIG. 1, a joint structure using a cross-column split-tee joint, which is an example of a column-beam joint structure of the present invention, is formed by joining two upper and lower column members 10 to four wooden beam members 30 on the front, back, left and right sides.
Two wooden post members 10, one above the other, are shown, and are connected via a first connector 20 attached to the ends of the wooden post members.
In addition, the four wooden beam members 30 on the front, back, left and right sides are connected to the first connectors 20 via second connectors 40 attached to their ends, and are then connected to the column members 10, which are wooden column members.

(Wood pillar member, first connector)
The first connector 20 has horizontal plate portions 27, 27 arranged above and below, and a column portion 21 extending in the vertical direction and arranged between the two horizontal plate portions 27, 27. The horizontal plate portion 27 is attached to an end portion of the column member 10, which is a wooden column member.
In addition, when the column member 10 is not a wooden column member (steel column member or steel reinforced concrete column member), if the first connector 20 is an extended column member, the first connector 20 can be attached by directly welding to the steel part built into the steel column member or steel reinforced concrete member. Furthermore, in the case of a reinforced concrete column member, a method can be adopted in which the reinforced concrete column member is fastened to the horizontal plate portion 27 of the first connector 20 by using a reinforcing bar with a threaded end or a dedicated anchor bolt, and then attached to the first connector 20. This is the same as the exposed column base construction method for fastening a general steel frame member and a reinforced concrete member.

The pillar portion 21 has a plate-like shaft portion 26 that extends in the vertical direction and has a cross shape when viewed from above, and four plate-like vertical wall portions 22 that extend in the vertical direction perpendicular to the shaft portion 26.
One vertical wall portion 22 is joined to each of the four ends of the shaft portion 26 by welding or the like to form the column portion 21.
The column 21 extends in the vertical direction and has four plate-shaped vertical walls 22, and these vertical walls 22 are arranged so that the directions of the outer wall surfaces are shifted by 90 degrees each, which allows the direction of fixing of the wooden beam member 30 to be determined, thereby providing a column-beam joint structure with excellent earthquake resistance. In addition, since the column 21 manufactured in a factory can be brought to the site, workability is improved, and since there is no need to use a concrete solidification form, for example, work time can be shortened.

The wooden beam member 30 is configured to have four vertical wall portions 22 in order to connect in four directions, but is not limited to this. Three vertical wall portions 22 may be used if connecting in three directions, two vertical wall portions 22 may be used if connecting in two directions, and one vertical wall portion 22 may be used if connecting in one direction.

Each vertical wall portion 22 is formed with a first upper protrusion 23 in a split-tee shape that protrudes outward at the upper portion and extends horizontally, a first lower protrusion 24 in a split-tee shape that protrudes outward at the lower portion and extends horizontally, and a first intermediate protrusion 25 in a plate shape that protrudes outward at the middle portion and extends in the vertical direction.
The first upper protrusion 23 and the first lower protrusion 24 are attached to the vertical wall portion 22 by fastening with, for example, high-strength bolts and nuts.
With the configuration in which the first upper protrusion 23 protrudes outward from the upper part of the vertical wall portion 22, the first lower protrusion 24 protrudes outward from the lower part of the vertical wall portion 22, and the first intermediate protrusion 25 protrudes outward from the intermediate part of the vertical wall portion 22, the fixing direction of the wooden beam member 30 by the first connector 20, more specifically, the connecting form with the second connector 40, can be determined, thereby providing a column-beam connecting structure with excellent earthquake resistance.
On the other hand, one or both of the first upper protrusion 23 and the first lower protrusion 24 can be omitted, in which case the first intermediate protrusion 25 becomes the “first protrusion” as referred to in embodiment 1.

In the first connector 20, at least one of the split-tee type first upper protrusion 23 and the split-tee type first lower protrusion 24 is preferably a CT steel beam, which is fixed to the vertical wall portion 22 with a high-strength bolt or a one-sided bolt.
CT beams are commonly known as "cut tees," and as the name suggests, are H-shaped beams cut at the center of the web.
A high strength bolt (HTB) is a bolt that is manufactured to have high strength and be able to withstand high tensile forces while at the same time allowing the bolt to be tightened evenly.
A one-sided bolt is a high-strength bolt that fastens components together by installation from one direction, eliminating the need for nuts to fasten the threaded parts on both sides of the structure.
By using these, it is possible to create a structure with better earthquake resistance. In addition, in order to reduce the out-of-plane deformation of the flange part of the cross-shaped steel part in the split tee joint, it is desirable to insert a diaphragm (not shown) in the cross-shaped steel part.

As shown in FIG. 3, a dowel pin 60 is provided on the horizontal plate portion 27 of the first connector 20 that is connected to the wooden column member 10. When connecting the first connector 20 to the wooden column member 10, it is preferable to embed each dowel pin 60 in a dowel pin hole 61 at the end of the wooden column member 10. This allows for a structure with better earthquake resistance.

At the attachment portion between the end of the wooden column member 10 and the first connector 20, a pilot hole 51 is formed in the end of the wooden column member 10, and a lag screw bolt (LSB) 50 is embedded in the pilot hole 51. The bolt is fixed to the lag screw bolt 50 from the outside, sandwiching the horizontal plate portion 27 of the first connector 20.

The lag screw bolt 50 is a fastener with a male thread machined around the shaft and a female or male thread at the end. A pilot hole 51 of approximately the same size as the root diameter of the lag screw bolt is drilled into the wood in advance, and the lag screw bolt is screwed into the pilot hole 51 using a special tool. It is possible to achieve high strength.
A structure with better earthquake resistance can be achieved by using the lag screw bolt 50. High toughness lag screw bolts are preferred.

(Wood beam member, second connector)
A second connector 40 is provided to the wooden beam member 30 .
The second connector 40 has a vertical plate portion 41 that is attached to the end face of the wooden beam member 30 and extends in the vertical direction.
Each vertical plate portion 41 is formed with a plate-shaped second upper protrusion 43 that protrudes outward at an upper portion and extends horizontally, a plate-shaped second lower protrusion 44 that protrudes outward at a lower portion and extends horizontally, and a plate-shaped second intermediate protrusion 45 that protrudes outward at an intermediate portion and extends vertically. The respective mating surfaces of the vertical plate portion 41, the second upper protrusion 43, and the second lower protrusion 44 are integrated by welding or the like.
On the other hand, one or both of the second upper protrusion 43 and the second lower protrusion 44 can be omitted, in which case the second intermediate protrusion 45 becomes the “second protrusion” as referred to in embodiment 1.

As shown in FIG. 3, dowel pins 60 are provided on the vertical plate portion 41 of the second connector 40. When connecting the second connector 40 to the wooden beam member 30, it is preferable to embed each dowel pin 60 in a dowel pin hole 61 at the end of the wooden beam member 30. The dowel pins 60 are for shear transfer, and can provide a structure with better earthquake resistance.

As shown in Figures 4 and 5, at the attachment portion of the end of the wooden beam member 30 and the second connector 40, a pilot hole 51 is formed in the end of the wooden beam member 30, and a lag screw bolt (LSB) 50 is embedded in the pilot hole 51. A rolled bolt 53 is fixed to the lag screw bolt 50 from the outside, sandwiching the vertical plate portion 41 of the second connector 40. The lag screw bolt 50 shown in Figures 1 to 5 is a high-toughness lag screw bolt, which is fixed with a washer and double nut tightening, and broken and fixed with the rolled bolt 53. To give it toughness, the rolled bolt 53 is attached and then yielded there.

The lag screw bolt 50 is a fastener with a male thread machined around the shaft and a female or male thread at the end. A pilot hole 51 of approximately the same size as the root diameter of the lag screw bolt is drilled into the wood in advance, and the lag screw bolt is screwed into the pilot hole 51 using a special tool. It is possible to achieve high strength.
By using the lag screw bolt 50, a structure with superior earthquake resistance can be achieved.

(Column-beam joint structure)
In the column-beam joint structure, the first upper protrusion 23 and the second upper protrusion 43, the first lower protrusion 24 and the second lower protrusion 44, and the first intermediate protrusion 25 and the second intermediate protrusion 45 are respectively connected by screwing or the like. This makes it possible to achieve a structure with excellent earthquake resistance. In addition, the columns and beams can be easily connected.
As shown in Figures 4 and 5, in the case of screwing, specifically, the four holes 28 formed in the first upper protrusion 23 are aligned with the four holes 48 formed in the second upper protrusion 43, the first upper protrusion 23 and the second upper protrusion 43 are overlapped, and then connected and fixed with high-strength bolts 57 and nuts 58.

It is preferable to use high-strength bolts (HTB) for at least one of the screwing of the first upper protrusion 23 and the second upper protrusion 43, and the screwing of the first lower protrusion 24 and the second lower protrusion 44. This allows for a structure with better earthquake resistance.

(Embodiment 2)
(Column-beam joint structure: Cross column split tee joint (rolled bolt joint) structure)
FIG. 6 is a perspective exploded view of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention. FIG. 7 is a plan exploded view of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention. FIG. 8 is a front exploded view of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention. FIG. 9 is a perspective view of a joint portion of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention. FIG. 10 is a front view of a joint portion of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention. FIG. 11 is a front explanatory view of a joint portion of a cross column split tee joint (rolled bolt joint) structure, showing an example of the column beam joint structure of the present invention.
The structure of the second embodiment is the same as that of the first embodiment, except that the vertical plate portion 41 of the second joint 40 is sandwiched and fixed via a sleeve 52 to the lag screw bolt 50 embedded in the tip hole 51.

At the attachment portion between the end of the wooden beam member 30 and the second connector 40, a lag screw bolt 50 is embedded in a pilot hole 51 formed in the end of the wooden beam member 30, and a rolled bolt 53 is inserted from the outside, sandwiching the vertical plate portion 41 of the second connector 40 via a sleeve 52.
A rolled bolt is a bolt made by rolling, not cutting. Compared to cut bolts, rolled bolts require a die, but they are stronger and have the characteristic that they are guaranteed not to break at the threads. This allows for a structure with excellent earthquake resistance.

In the example embodiment, the upper part of the second connector 40 is secured by four lag screw bolts 50 and four rolled bolts, and the lower part is secured by two lag screw bolts 50 and two rolled bolts.

It is fixed via a sleeve 52. To give it toughness, rolled bolts 53 are attached and made to yield there, but in order to maintain a certain degree of elongation after yielding, a sleeve tube with sufficient strength is passed through it, and the sleeve tube is installed so as to take the reaction force of the rolled bolts that make the compressive force yield in tension.
As shown in Fig. 11, the sleeve 52 may be buckled and the rolled bolt 53 may be fixed to the lag screw bolt to generate tension and provide excellent earthquake resistance. In this case, since the rolled bolt does not need to yield, a cut screw that can ensure strength can also be used.

(Embodiment 3)
(Column-beam joint structure: Column (square column, steel pipe column) split-tee joint structure)
Fig. 12 is a perspective exploded view of a column-beam joint structure according to an embodiment of the present invention, showing a column-beam joint structure with a □ split tee. Fig. 13 is a plan exploded view of a column-beam joint structure with a □ split tee. Fig. 14 is a front exploded view of a column-beam joint structure with a □ split tee.
The structure of the third embodiment is the same as that of the first embodiment, except that square columns are used instead of cross columns. Even in this way, a structure with excellent earthquake resistance can be obtained.

(Wood pillar member, first connector)
The first connector 20 has horizontal plate portions 27 arranged above and below, and a column portion 121 arranged between the two horizontal plate portions 27. The horizontal plate portion 27 is attached to the end of the column member 10, which is a wooden column member. In addition, when the column member 10 is not a wooden column member (a steel column member or a steel reinforced concrete column member), the first connector 20 may be used as an extended column member as it is, or may be directly welded to the first connector 20 and attached to a steel portion built into the steel column member or steel reinforced concrete member. Furthermore, in the case of a reinforced concrete column member, the first connector 20 is attached to the first connector 20 by fastening the reinforced concrete column member to the horizontal plate portion 27 using a reinforcing bar with a threaded end or a dedicated anchor bolt, which is the same as the exposed column base construction method for fastening a general steel member and a reinforced concrete member.

The pillar portion 121 has a rectangular cylindrical shape extending in the up-down direction in a plan view, and has four vertical walls 22. The vertical walls 22 are integrated with each other, and adjacent vertical walls 22 are integrated with each other.
As a result, the column portion 121 can stand in a column shape using only the vertical wall portion 22 without the need for a shaft portion as in embodiment 1, and can support the two upper and lower column members 10 via the horizontal plate portion 27.
Because the column portion 121 is configured as a rectangular tube having four vertical wall portions 22 and a rectangular shape (e.g., a square shape) when viewed from above, the fixing direction of the wooden beam member 30 by the first connector 20 can be determined, thereby providing a column-beam joint structure with excellent earthquake resistance.
The planar shape of the column portion 121 is not limited to a square shape, but may be, for example, a rectangular shape or an octagonal shape.
In order to connect the wooden beam members 30 in four directions, the wooden beam members 30 are configured to have four vertical walls 22, but this is not limited to this. Three vertical walls 22 may be provided for connection in three directions, two vertical walls 22 may be provided for connection in two directions, and one vertical wall 22 may be provided for connection in one direction.

Each vertical wall portion 22 is formed with a first upper protrusion 23 in a split-tee shape that protrudes outward from the upper portion and extends horizontally, a first lower protrusion 24 in a split-tee shape that protrudes outward from the lower portion and extends horizontally, and a first intermediate protrusion 25 that protrudes outward from the middle portion and extends in the vertical direction.
The first upper protrusion 23 and the first lower protrusion 24 are attached to the vertical wall portion 22 by one-sided bolts 55 .

(Embodiment 4)
(Column-beam joint structure: Column (square column, steel pipe column) split tee joint (rolled bolt joint) structure)
Fig. 15 is a perspective exploded view of a column-beam joint structure of the present invention, showing an example of the column-beam joint structure of the present invention. Fig. 16 is a plan exploded view of a column-beam joint structure of the present invention. Fig. 17 is a front exploded view of a column-beam joint structure of the present invention.
The structure of the fourth embodiment is the same as that of the third embodiment, except that a rolled bolt 53 is used as a bolt that is fixed from the outside to the lag screw bolt 50 embedded in the tip hole 51, sandwiching the vertical plate portion 41 of the second joint portion 40, and is fixed via a sleeve 52. Even in this way, a structure with excellent earthquake resistance can be obtained.

The first upper protrusion 23 and the first lower protrusion 24 are attached to the vertical wall 22 by one-sided bolts 55. In order to reduce the out-of-plane deformation of the skin plate of the square steel pipe at the split tee joint, it is desirable to insert a diaphragm (not shown) inside the square steel pipe.

(Embodiment 5)
18-21 are diagrams showing joining methods other than lag screw bolts (for example, GIR joining using adhesive), with FIGS. 18 and 19 showing Type A and FIGS. 20 and 21 showing Type B.

As shown in Fig. 18, in the type A joining method, first, a high-strength reinforcing bar 81 made by processing a female thread into a deformed reinforcing bar is prepared. Next, a hole is first drilled in the wooden beam member 30, the reinforcing bar is inserted, and the reinforcing bar is fixed with adhesive. Next, the vertical plate portion 41 is fixed with a rolled bolt (ABR anchor bolt) 53 and a nut 83 via a sleeve 52.
19 is a view from another perspective, showing the female threaded portion 85.

As shown in Figure 20, Type B first prepares a high-strength reinforcing bar 81 made by processing a male thread into a deformed reinforcing bar. The reason for using a high-strength reinforcing bar is to compensate for the lack of strength of the processed part due to the thread processing. Next, a hole is first drilled in the wooden beam member 30, and the reinforcing bar is inserted and fixed with adhesive. Next, the vertical plate part 41 is fixed with a rolled bolt (ABR anchor bolt) and a nut 87 via a sleeve 52 and a long nut 88.
Fig. 21 is a view from another perspective, showing a female threaded portion 85 and a male threaded portion 86. In order to ensure fire resistance in GIR joints, it is desirable to give the holes for attaching reinforcing bars to wooden members using adhesive an uneven or bumpy shape as shown in Figs. 22 and 23.
By fastening the high-strength reinforcing bar 81 with a female screw or male screw using a bolt or nut, a column-beam joint structure with excellent earthquake resistance can be provided. In addition, construction workability can be improved and construction time can be shortened.

(Embodiment 6)
22 and 23 are diagrams showing a joining method other than the lag screw bolt (for example, GIR joining using an adhesive) and show a method of forming a pilot hole.
Since holes are created in the wood due to heat, the holes to be drilled in the wooden beam member 30 are threaded 91 using a reinforcing bar (special tap) 90 or are drilled with a knob 92 .

(Embodiment 7)
Fig. 24 is a perspective exploded view of a cross column split tee (dog-bone steel frame) joint structure, showing an example of the column beam joint structure of the present invention. Fig. 25 is a plan exploded view of a cross column split tee (dog-bone steel frame) joint structure, showing an example of the column beam joint structure of the present invention. Fig. 26 is a front exploded view of a cross column split tee (dog-bone steel frame) joint structure, showing an example of the column beam joint structure of the present invention.
Fig. 27 is a perspective exploded view of a square column (square column) split-tee (dog-bone steel frame) joint structure, showing an example of the column-beam joint structure of the present invention. Fig. 28 is a plan exploded view of a square column split-tee (dog-bone steel frame) joint structure, showing an example of the column-beam joint structure of the present invention. Fig. 29 is a front exploded view of a square column split-tee (dog-bone steel frame) joint structure, showing an example of the column-beam joint structure of the present invention.

The horizontal lengths of the first upper protrusion 23, the first lower protrusion 24, the first intermediate protrusion 25, the second upper protrusion 43, the second lower protrusion 44, and the second intermediate protrusion 45 are increased to form a dog-bone steel frame, but otherwise the structure is the same as that of the first and second embodiments. The dog-bone steel frame referred to here is a system in which the second upper protrusion 43 and the second lower protrusion 44 are partially recessed into a dog-bone shape to form dog-bone portions 43a and 44a, as shown in the figure, for example, to absorb earthquake energy by causing the wooden beam member 30 and its joints to yield before they do so.

(Embodiment 8)
Fig. 30 is a diagram showing an example of the column-beam joint structure of the present invention, and is an exploded perspective view of a cross-column drift pin attachment structure. Fig. 31 is a diagram showing an example of the column-beam joint structure of the present invention, and is an exploded plan view of the cross-column drift pin attachment structure. Fig. 32 is a diagram showing an example of the column-beam joint structure of the present invention, and is an exploded front ...1 is a diagram showing an example of the column-beam joint structure of the present invention, and is an exploded front view of the cross-column drift pin attachment structure.
Fig. 33 is a perspective exploded view of a steel pipe column drift pin joint structure, showing an example of the column-beam joint structure of the present invention. Fig. 34 is a plan exploded view of a steel pipe column drift pin joint structure, showing an example of the column-beam joint structure of the present invention. Fig. 35 is a front ...4 is a perspective exploded view of a steel pipe column drift pin joint structure, showing an example of the column-beam joint structure of the present invention.
FIG. 36 is an exploded perspective view showing the drift pin joint.

An up-down notch 30A is formed on the end face of the wooden beam member 30, and a second connector 40 is provided at the end of the wooden beam member 30, and a plate-shaped second protrusion 45A extending in the up-down direction on the second connector 40 can be inserted into the notch 30A.
In addition, the wooden beam member 30 has a plurality of drift pin insertion holes 30B that penetrate both side surfaces thereof, and a plurality of drift pin insertion holes 45B are also provided in the second protrusion 45A of the second connector 40. After the second protrusion 45A is fitted into the cut-out portion 30A, a drift pin 105 can be inserted from the outside of the wooden beam member 30 to connect the first connector 20 and the wooden beam member 30.

In this way, by fitting and fixing the second protrusion 45A attached to the first intermediate protrusion 25 into the notch 30A provided at the end of the wooden beam member 30, a column-beam joint structure with excellent earthquake resistance can be provided. In addition, construction workability can be improved and construction time can be shortened.

In the eighth embodiment, a vertical cut 30A is formed in the wooden beam member 30, into which the second protrusion 45A of the second connector 40 is inserted and fitted, and multiple drift pin insertion holes 30B are formed in the wooden beam member 30 and multiple drift pin insertion holes 45B are formed in the second protrusion 45A of the second connector 40. A drift pin 105 is inserted from the outside of the wooden beam member 30 to connect the second connector 40 to the wooden beam member 30.

(Embodiment 9)
Figure 37 is a diagram showing an example of a column-beam joint structure of the present invention, and is a partial front view of a structure for attaching a fixing hardware as a fixing member having a special shape in which a sleeve is threaded on the outside and a rolled bolt is fixed to it with nuts on both sides.
Figure 38 is a diagram showing an example of a column-beam joint structure of the present invention, and is a partially exploded view of a structure for attaching a fixing hardware as a fixing member having a special shape in which a sleeve is threaded on the outside and a rolled bolt is fixed to it with nuts on both sides.
In this structure, a threaded portion 133 is provided on the outside of the sleeve 52, and a specially shaped fixing hardware 131 is attached as a fixing member, with the rolled bolt 53 fixed to it from both sides with nuts 132 , 132. This allows the rolled bolt 53 to not only yield in tension but also in compression, allowing for higher energy absorption.

(Embodiment 10)
(Column-beam joint structure: column example)
There is also proposed a column-beam joint structure example of embodiment 10 shown in Figure 39. This embodiment 10 has a highly improved earthquake resistance.
The column members may be either wood column members, steel column members, reinforced concrete column members or steel reinforced concrete column members.
The first connector 20 disposed between the upper and lower post members 10, 10 has horizontal plate portions 27 disposed above and below, and a rectangular post portion 22A disposed between the two horizontal plate portions 27. The horizontal plate portions 27 are attached to the end portions of the post members 10, which are wooden post members.

The rectangular column portion 22A is a steel material having a rectangular cylindrical shape extending in the up-down direction in a plan view, and has four vertical wall portions. The vertical wall portions are integrated.
If necessary, a first upper protrusion 23 and a first lower protrusion 24 protruding outward horizontally are joined to the upper and lower parts of the rectangular column portion 22B via welding or the like to the mating surfaces of the annular wall portion 22B that circumnavigates the vertical wall portion.
Here, the first upper protrusion 23 and the first lower protrusion 24 can also be joined directly to the vertical wall portion of the rectangular column portion 22A by welding or the like, without the annular wall portion 22B therebetween.
The first intermediate protrusion 25 is directly joined to the vertical wall of the rectangular column portion 22A by welding or the like.

On the other hand, second connectors 40 are provided to connect the wooden beam members 30 in four directions.
This second connector 40 has a vertical plate portion 41 that is attached to and extends in the vertical direction along the end face of the wooden beam member 30 .
Each vertical plate portion 41 is formed with a plate-shaped second upper protrusion 43 that protrudes outward at an upper portion and extends horizontally, a plate-shaped second lower protrusion 44 that protrudes outward at a lower portion and extends horizontally, and a plate-shaped second intermediate protrusion 45 that protrudes outward at an intermediate portion and extends vertically. The respective mating surfaces of the vertical plate portion 41, the second upper protrusion 43, and the second lower protrusion 44 are integrated by welding or the like.

When connecting the first connector 20 and the second connector 40, the upper side is sandwiched between an upper connecting plate 70 arranged across the upper surface of the first upper protrusion 23 and the upper surface of the second upper protrusion 43, and an upper connecting plate 71 arranged across the lower surface of the first upper protrusion 23 and the lower surface of the second upper protrusion 43, and is screwed together with a high-strength bolt 57 and a nut 58.

When connecting the first connector 20 and the second connector 40, the lower side is sandwiched between a lower connecting plate 72 arranged across the upper surface of the first lower protrusion 24 and the lower surface of the second lower protrusion 44, and a lower connecting plate 73 arranged across the upper surface of the first lower protrusion 24 and the upper surface of the second lower protrusion 44, and is screwed together with a high-strength bolt 57 and a nut 58.

When connecting the first connector 20 and the second connector 40, the intermediate portions are sandwiched between a pair of intermediate connector plates 74 (the other pair of intermediate connector plates is not shown) that are arranged across the sides of the first intermediate protrusion 25 and the second intermediate protrusion 45, and are screwed together using high-strength bolts 57 and nuts 58.

At the attachment portion of the second connector 40 to the end of the wooden beam member 30, a lag screw bolt 50 is embedded in a pilot hole 51 formed in the end of the wooden beam member 30, and a rolled bolt 53 is inserted from the outside, sandwiching the vertical plate portion 41 of the second connector 40 via a sleeve 52.

On the other hand, one or both of the first upper protrusion 23 and the first lower protrusion 24 can be omitted, in which case the first intermediate protrusion 25 becomes the “first protrusion” as referred to in embodiment 1.
In addition, one or both of the second upper protrusion 43 and the second lower protrusion 44 can be omitted, in which case the second intermediate protrusion 45 becomes the “second protrusion” referred to in embodiment 1.

(Embodiment 11)
(Column-beam joint structure: □ Column (square steel pipe column)
Fig. 40 shows an example of an eleventh embodiment. This eleventh embodiment is an example in which a dog-bone steel frame is formed, like the seventh embodiment shown in Fig. 24. Other configurations are the same as those of the tenth embodiment, so a description thereof will be omitted.
That is, dog bone portions 43a, 44a are formed on the second upper protrusion 43 and the second lower protrusion 44 of the second connector 20.
The purpose of making the beam size slightly smaller at the ends, for example by forming dog-bone portions 43a, 44a as shown in the figure, is to concentrate stress in these dog-bone portions when the building deforms during an earthquake, causing the steel to flexibly deform plastically, thereby making the building more resilient.

In the above embodiment, when joining the wooden beam member 30 to the vertical plate portion 41, or when joining the wooden column member to the horizontal plate portion 27, a so-called GIR joint can be used, in which reinforcing bars are inserted into the wooden beam member 30 or the wooden column member, and the joint is made by injecting and solidifying adhesive.

The beam-column joint structure of the present invention has excellent earthquake resistance and can shorten construction time, making it useful as an easy-to-use earthquake-resistant building component, and has potential for use in the construction industry, where buildings are constructed efficiently in a short period of time.

10...pillar member, 20...first connector, 21...pillar portion, 22...vertical wall portion, 23...first upper protrusion, 24...first lower protrusion, 25...first intermediate protrusion, 26...shaft portion, 27...horizontal plate portion, 30...wooden beam member, 30A...notch portion, 30B...drift pin insertion hole, 40...second connector, 41...vertical plate portion, 43...second upper protrusion, 43a...dogbone portion, 44...second lower protrusion, 44a...dogbone portion, 45...second intermediate protrusion, 45A...second protrusion, 50...lag screw bolt (LSB), 51...tip hole, 52...sleeve (Steel pipe), 53...rolled bolt, 55...one-sided bolt, 57...high strength bolt (HTB), 58...nut, 60...dowel pin, 61...dowel pin hole, 81...high strength rebar, 83...ABR anchor bolt/nut, 85...female threaded part, 86...male threaded part, 87...rolled bolt ABR anchor bolt/nut, 88...long nut, 90...rebar (special tap), 91...thread cutting, 92...nob hole, 105...drift pin, 121...column, 131...specially shaped fixing hardware, 132...nut, 133...threaded part.

Claims (5)

A column-beam joint structure in which a first connector attached to an end of a column member and a second connector attached to an end of a wooden beam member are connected,
When the column member is a wooden column member, in attaching the first connector to the wooden column member and/or attaching the second connector to the wooden beam member,
The wooden column member and/or the wooden beam member have a deformed steel bar embedded in a hole formed therein,
A rolled bolt having a sleeve on its outer periphery is inserted into the first fastener and/or the second fastener, and is screwed together at the threaded portion, which is a female thread at the end of the deformed bar;
The sleeve is sandwiched between the head of the rolled bolt and the first connector and/or the second connector.
A column-beam joint structure characterized by : A column-beam joint structure in which a first connector attached to an end of a column member and a second connector attached to an end of a wooden beam member are connected,
When the column member is a wooden column member, in attaching the first connector to the wooden column member and/or attaching the second connector to the wooden beam member,
The wooden column member and/or the wooden beam member have a deformed steel bar embedded in a hole formed therein,
A rolled bolt having a sleeve on its outer periphery is inserted from one side of the first fastener and/or the second fastener to the other side,
The sleeve, the fixing member, and the rear portion of the rolling bolt are located on the one side ,
The sleeve is fixed to the fixing member ,
The rear portion of the rolled bolt is fixed to the fixing member .
A column-beam joint structure characterized by : 3. A column-beam joint structure according to claim 1 or 2, wherein the deformed steel bars embedded in holes formed in the wooden column members and/or the wooden beam members are joined by injecting and hardening an adhesive . A column-beam joint structure in which a first connector attached to an end of a column member and a second connector attached to an end of a wooden beam member are connected,
When the column member is a wooden column member, in attaching the first connector to the wooden column member and/or attaching the second connector to the wooden beam member,
The first connector and/or the second connector are attached to a lag screw bolt embedded in a hole formed in the wooden column member and/or the wooden beam member by a rolled bolt via a sleeve.
A column-beam joint structure characterized by: A column-beam joint structure in which a first connector attached to an end of a column member and a second connector attached to an end of a wooden beam member are connected,
When the column member is a wooden column member, in attaching the first connector to the wooden column member and/or attaching the second connector to the wooden beam member,
The first connector and/or the second connector are attached to a lag screw bolt embedded in a hole formed in the wooden column member and/or the wooden beam member by a rolled bolt via a sleeve,
The sleeve is disposed on an outer periphery of the rolled bolt,
The sleeve has a rolled bolt fixed thereto.
A column-beam joint structure characterized by:

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