JP2018188902A - Joint structure of structure skeleton for wooden building and wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint structure of a structural skeleton for a wooden building and the woody building that does not cause serious damage to a joint fitting even if a large tensile force is generated between the structural skeleton and a foundation or between a column and a woody structure skeleton, and that can be improved a tension performance of the structural skeleton.SOLUTION: A male screw part 27b formed in a bolt 27 embedded in the wall panel W in a state in which the wall panel W is installed on a top plate 14 of the column base metal fitting 13 is protruded downward from the top plate 14 from the through hole 18 formed in the top plate 14. A nut 32 is screwed onto the outer periphery of the male screw part 27b and the pipe 21 is tightened in the top plate 14 direction by the axial movement of the screw action of the nut 32 in a state in which the pipe 21 is disposed between the nut 32 and the top plate 14 via a washer 29.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a joining structure of a structural frame of a wooden building, a wooden building, and the like.

2. Description of the Related Art Conventionally, in order to connect and fix a structural frame of a wooden building, it has been practiced to arrange a joint fitting on the joint surface of the structural frame.
Patent documents 1 and 2 are shown as literatures which disclosed such a junction structure. Patent Document 1 discloses a joining structure in which a T-shaped fitting 13 as a joining fitting is arranged on a beam 11 as a structural casing in order to connect a tube column 12 as a structural casing. Further, for example, Patent Document 2 discloses a joining structure in which a joining fitting in which the fitting pieces 11 are assembled is arranged on a base 25 serving as a structural casing in order to connect a pipe column 26 as the structural casing. In the joining structure using the joining metal fittings as in these Patent Documents 1 and 2, the structural housing can be joined with a joining strength different from that in the structure not using the joining fitting.
By the way, when a very large pulling force is applied to a wooden building and the force is directly transmitted to the structural frame, the structural frame becomes brittle in a joint structure having a poor deformation capability. Patent Document 3 is given as an example of a joint structure (joint fitting) having high toughness ability. In Patent Document 3, for example, as shown in FIG. 6, the column member 2 and the joining member 1 are used to fix the RC member 9. Since the deformable portion 10 is provided in the joining member 1, the deformable portion 10 having a small cross-sectional area with respect to a strong tensile force is plastically deformed to ensure a deformability, and as a result, the joining member 1. Toughness can be ensured.

JP 2000-64426 A JP 2003-56075 A JP 2008-280786 A

  However, in the configuration as in Patent Document 3, once the tensile force is applied and the deformable portion 10 is extended, the joining member 1 cannot be easily replaced. Moreover, in order to ensure a large deformation capability, it is necessary to lengthen the part of the deformation part 10, and rigidity falls. Furthermore, when securing the deformability by tensile yielding, there is a possibility that the deformed portion 10 will break if an unexpected external force is applied. Therefore, there has been a demand for a joint structure of a wooden structure and a wooden building that can solve the above-described problems.

In order to achieve the above object, as means 1, in the joining structure of the structural frame of a wooden building in which the structural frame is installed on the column base bracket fixed to the foundation, the top plate of the column base bracket In a state where the structural housing is installed on the top, a male screw portion formed at least near the lower end of a rod-like metal member embedded on the structural housing side is below the top plate from a through hole formed in the top plate. Due to the screw action of the female screw member, a female screw member is screwed to the outer periphery of the male screw portion so as to be movable in the axial direction, and a cylinder is disposed between the female screw member and the top plate. The cylindrical body is fastened in the direction of the top plate by moving in the axial direction.
Further, as means 2, in the joining structure of the structural frame of the wooden building in which the structural frame is installed on the column base bracket fixed to the foundation, the structural frame is disposed on the top plate of the column base bracket. In the installed state, a male screw portion formed at least near the lower end of the rod-shaped metal fitting supported so as to be movable in the axial direction on the structural housing side is below the top plate from the through hole formed in the top plate. The head portion is integrally formed on the lower end side of the male screw portion, a cylindrical body is disposed between the head portion and the top plate, and the rod-shaped metal fitting is moved upward by a screw action. The cylinder is fastened in the direction of the top plate by a head portion.
In the case of a joint structure of a structural frame of a wooden building such as these, when a strong tensile force is applied between the column base bracket and the structural frame, the rod-shaped bracket moves up together with the structural frame, The cylinder is compressed, for example, between the female screw member or the head portion and the top plate with the movement. Therefore, damage to joint fittings other than cylinders occurs due to plastic buckling (that is, plastic deformation with permanent strain remaining) with a lower pulling force than damage to joint fittings other than cylinders. Can not be. In other words, the tensile energy is consumed as energy for compressing the cylinder and causing plastic deformation or the like. This makes it possible to ensure toughness without yielding or destroying a member (metal fittings) such as a joint metal fitting other than the cylindrical body. In addition, by plastic buckling only the cylindrical body in this way, it is possible to ensure the apparent toughness of the entire joint fittings (metal fittings) including the cylindrical body, and the strength and toughness without destroying the structural housing Can be secured.
Furthermore, the plastic body can be plastic buckled and plastic deformation can be performed without decreasing the yield strength until the cylinder is completely plate-shaped (collapsed into a so-called Peshanco state), so large plastic deformation is possible for short cylinder lengths. (Shrinkage) can be realized and there is little decrease in rigidity.
By arranging the cylinders in this way, for example, it is possible to control toughness using at least one of the shape elements such as material, diameter, thickness, and material length as a change element. When a tensile force acts on the joint fitting on the structure housing side, the tensile force is converted into a compressive force and acts on the cylinder. At that time, it is preferable that the cylinder has performance so that plastic buckling occurs due to the compressive force. That is, toughness can be controlled by designing the cylinder body to a predetermined performance. As the performance of the cylindrical body, for example, the plastic buckling strength of the cylindrical body is set so that the other joints constituting the bonded structure are not damaged, and the amount of expansion of the apparent bonded structure depends on the amount of shrinkage caused by plastic deformation. It is preferable to set so as to satisfy the required performance of the joint structure required in the event of a large earthquake.
In the first means, the female screw member screwed to the male screw portion of the bar-shaped metal fitting is moved in the axial direction by the screw action, that is, the female screw member is rotated and moved along the axial direction of the bar-shaped metal fitting, thereby It is tightened so as to be pressed in the plate direction. If it is such a structure, it will become possible to insert a cylinder body in the rod-shaped metal fitting protruded below the top plate, after installing a structural housing on the column base metal fittings.
In the means 2, by rotating the rod-shaped bracket, the rod-shaped bracket itself is moved up by a screw action so that the cylinder is pressed in the direction of the top plate. In other words, after the structural housing is installed on the column base metal fitting, the rod-like metal fitting is connected from below the top plate. At the time of the connection, the cylindrical body is inserted into the rod-like metal fitting. The means 2 does not require a separate female screw member.

Here, the “structural frame” is a part that corresponds to the framework (members constituting the frame) when building a wooden building, such as walls, pillars, horizontal members (beams, girders, etc.), foundations, purlins, etc. Is widely used. Further, a laminated material or a laminated material, for example, an orthogonal laminated plate called CLT (Cross Laminated Timber) may be used.
Further, the appearance of the “bar-shaped metal fitting” is not particularly limited as long as the male screw portion is formed near the lower end (or the front end) of the outer periphery. The means 1 has no head part, and the means 2 is a rod-shaped metal fitting with a head part. Even if the male screw part is formed over the entire length, the male screw part may be formed only in part. Moreover, the cross-sectional shape of the part in which the male screw part is not formed may not be circular. Since the “bar-shaped bracket” is protruded downward from the top plate through a through hole formed in the top plate, a space region is formed at least at a position below the top plate. The case where the rod-shaped bracket is embedded in the structure housing side means that the lag screw bolts and normal bolts are not only screwed in and held between the structure housing but also in the insertion hole formed on the structure housing side. This includes the case where a rod-shaped metal fitting is inserted and held with an adhesive, synthetic resin or the like interposed therebetween.
Examples of the “female screw member” include a nut member. The shape of the female screw member is not limited as long as it can be screwed with the male screw portion of the rod-shaped metal fitting.
The “tubular body” is a building element composed of a wall portion configured in a ring shape that communicates vertically, and any material can be used as long as it is a material that has sufficient strength when subjected to compressive force in a wooden building. Further, it is preferable to have a cylindrical shape so that stress is generated as evenly as possible with respect to the load in all directions. The cylindrical shape is preferably a perfect circular cylindrical shape, but may be an ellipse. Moreover, a square tube may be sufficient. Moreover, it is preferable that the wall part which comprises a cylinder is seamless in order to eliminate the bias | inclination of stress. Examples of the material include metals and ceramics.
The definitions of these terms are the same in the following means.

Further, as the means 3, the rod-shaped metal fitting is connected to a connection metal fitting embedded in the wooden structural body.
That is, the rod-shaped metal fitting is separate from the connection metal fitting and is used in combination. This makes it possible to easily attach the rod-shaped metal fitting by embedding the connection metal fitting in advance in the wooden structure housing. In addition, for example, it is possible to attach later only a rod-shaped bracket in which a structural casing is installed on a top plate of a column base bracket.
Further, as the means 4, the connection fitting has a plate portion mounted on the top plate in an overlapping manner with respect to the same top plate, and the rod-shaped fitting communicates the plate portion and the top plate with the plate portion. The male screw portion was projected below the top plate.
In this way, by overlapping the plate part on the connection fitting side on the top plate, it becomes possible to guarantee the yield stress for the upward pulling force not only on the top plate but also on the plate part on the connection fitting side. Control of toughness such that the body is plastically deformed can be performed by changing the thickness of the plate portion on the side of the connection fitting.
Further, as the means 5, the column base bracket is fixed by anchor bolts embedded in the foundation, and the column base bracket is placed on the foundation via a bottom plate and formed on the bottom plate. The anchor bolt protrudes from the through hole to the upper side of the bottom plate, and a female screw member is screwed to the outer periphery of the male screw portion of the anchor bolt so as to be movable in the axial direction, and a second portion is provided between the female screw member and the bottom plate. The second cylinder is tightened in the direction of the bottom plate by the axial movement by the screw action of the female screw member in a state where the cylinder is disposed.
In this way, when a strong tensile force is applied between the column base bracket and the foundation, the column base bracket moves up together with the structural housing, and the cylinder body and the female screw member move along with the upward movement of the column base bracket. For example, the whole of the member (metal fittings) including the cylindrical body, such as by being compressed and buckled (ie, permanently deformed and plastically deformed) or broken between the bottom plate Deformability can be secured. In this means, the effect is secured together with the means 1 to 4 described above, that is, by the cooperation of the two cylinders. The strengths of the two cylinders may be the same or different.

Moreover, as means 6, in the joining structure of the structural frame of the wooden building in which the structural frame is installed on the column base bracket fixed to the foundation, the column base bracket is placed on the foundation via the bottom plate. An anchor bolt, which is mounted and embedded in the foundation through a through hole formed in the bottom plate, protrudes above the bottom plate, and a female screw member is screwed on the outer periphery of the male screw portion of the anchor bolt so as to be movable in the axial direction. The cylindrical body is fastened in the direction of the bottom plate by axial movement by the screw action of the female screw member in a state where the cylindrical body is disposed between the female screw member and the bottom plate.
In this way, when a strong tensile force is applied between the column base bracket and the foundation, the column base bracket moves up together with the structural housing, and the cylinder body and the female screw member move along with the upward movement of the column base bracket. For example, the whole of the member (metal fittings) including the cylindrical body, such as by being compressed and buckled (ie, permanently deformed and plastically deformed) or broken between the bottom plate Deformability can be secured. With this means, the effect may be ensured with only one cylinder attached to the anchor bolt.

Further, as means 7, in the joining structure of a structural frame of a wooden building in which a wooden structural frame made of a horizontal member or a diagonal member is supported on the column member, the metal side contact plate on the column member side In a state where the structural housing is brought into contact with the structural housing, a male screw portion formed at least near the tip of the rod-shaped metal fitting connected to the structural housing side is connected to the side from the through hole formed in the side contacting plate. A female screw member is screwed to the outer periphery of the male screw portion so as to be movable in the axial direction, and a cylindrical body is disposed between the female screw member and the side contact plate. In this state, the cylindrical body is tightened in the direction of the side contact plate by the axial movement caused by the screw action of the female screw member.
Further, as means 8, in the joining structure of the structural frame of the wooden building in which the column member is supported by the wooden structure frame made of the horizontal member or the diagonal member, the metal side portion of the column base bracket side is used. In a state where the structural housing is in contact with the contact plate, a male thread portion formed at least near the tip of a rod-shaped metal fitting movably disposed in the axial direction on the structural housing side is the side contact plate. The head portion is integrally formed on the front end side of the male screw portion, and is formed between the head portion and the side portion contact plate. A cylinder is disposed, and the rod-shaped metal fitting is advanced in the direction of the side contact plate by a screw action so that the cylinder is tightened in the direction of the side contact plate by the head portion.
If it is a joint structure of a structural frame of a wooden building such as these, when a strong tensile force or bending force acts between the column member and the horizontal member or diagonal member, the rod-shaped bracket moves with the structural frame, As the rod-shaped bracket moves, the cylindrical body is compressed between the female screw member or the head portion and the side contact plate, for example, is buckled (that is, permanently deformed and plastically deformed), or is destroyed. As a result, it is possible to ensure the apparent deformation ability of the entire member (metal fittings) such as the joint metal fitting including the cylinder. In other words, the tensile energy is consumed as energy for compressing the cylinder and causing plastic deformation or the like. As a result, the toughness can be secured without destroying or buckling the members other than the cylindrical body. In addition, by ensuring the toughness of the member such as the joint fitting other than the cylindrical body as described above, the strength can be ensured without destroying the structural housing.
By arranging the cylinders in this way, for example, the toughness can be controlled using at least one of the shape elements such as the material, diameter, wall thickness, and material length as a change element. Here, toughness control means that the cylinder is compressed with a force that is small compared to the yield stress of the joint fitting on the structural frame side, the proof strength against the structural frame being broken by the metal bracket, and a force that is equal to or greater than a predetermined compression force. Since it is required to be plastically deformed, the shape of the cylindrical body is determined so as to have such a relationship.
“Metal side abutment plate” can be used when the metal side abutment plate itself is a part of the column base bracket, or a separate side contact plate can be used as the column base bracket. Either may be used.
In the means 5, the female screw member screwed to the male screw portion of the rod-shaped metal fitting is moved in the axial direction by the screw action, that is, by moving the female screw member along the axial direction of the rod-shaped metal fitting, the cylinder body is moved. It is tightened so as to be pressed in the direction of the side contact plate. In such a configuration, the cylindrical body is attached to the rod-shaped metal fitting projected from the back side of the side contact plate after the wooden structural frame (horizontal member or diagonal member) is brought into contact with the side contact plate. It can be inserted.
The means 6 is tightened so that the cylindrical body is pressed in the direction of the top plate by rotating (moving) the rod-shaped bracket itself by screw action by rotating the rod-shaped bracket. In other words, the wooden structural frame (horizontal member or diagonal member) is brought into contact with the side contact plate, and then the rod-shaped bracket is connected from the back side of the side contact plate. A cylindrical body will be inserted in. The means 6 does not require a separate female screw member.

As the means 9, the column member is made of steel or concrete.
Since the steel or concrete pillar members are strong, when a tensile force in the horizontal direction is applied, the pillar members are not destroyed in relation to the horizontal members or diagonal members, which are wooden structures. It is only necessary to calculate the strength of the horizontal member or the diagonal member. If the column member is made of steel, for example, the side surface of the mold steel such as H steel, L steel, or channel steel can be used as the side contact plate as it is, and the joining structure of the structural housing of the present invention is realized. Is easy. Even if it is made of concrete, it is possible to firmly arrange the side contact plates on the outer periphery.
Further, as the means 10, the rod-shaped metal fitting is connected to a connection metal fitting embedded in the wooden structure housing.
That is, the rod-shaped metal fitting is separate from the connection metal fitting and is used in combination. This makes it possible to easily attach the rod-shaped metal fitting by embedding the connection metal fitting in advance in the wooden structure housing. In addition, for example, it is possible to attach only a rod-shaped metal fitting in which a structural housing is installed on the top plate of a column base metal fitting.
Further, as the means 11, the connection fitting has a plate portion mounted on the side contact plate in an overlapping manner with respect to the same side contact plate, and the rod-shaped fitting includes the plate portion and the side portion. The contact plate is communicated so that the male screw portion protrudes from the back side of the side contact plate.
In this way, by overlapping the plate portion on the connection fitting side with the side contact plate, it becomes possible to secure the yield stress against the tensile force not only on the side contact plate but also on the connection fitting side plate portion, Control of toughness such that the cylindrical body is plastically deformed can be performed by changing the thickness of the plate portion on the side of the connection fitting.

Further, as the means 12, the rod-shaped metal fitting is directly embedded in the wooden structure housing.
It is preferable in terms of cost and work to embed the rod-shaped metal fitting directly in the wooden structure housing.
Further, as the means 13, the rod-shaped metal fitting is embedded in the wood structure structural body by a lag screw portion formed on the outer periphery.
Such a rod-shaped metal fitting is screwed into the structural housing by a lag screw portion, and can be fixed without any other metal fittings against the pulling force (pull-out force).
As a means 14, a washer is interposed between the female screw member and the cylindrical body.
As a means 15, a washer is interposed between the head portion and the cylinder.
The compressive force (or load) acting on the cylinder is averaged by such a washer.
As the means 16, the cylinder is made of metal.
If the cylinder is made of metal, it can yield and buckle without being destroyed by being compressed, and can remain in that position.
Moreover, the wooden building provided with the joining structure of the structural frame of the wooden building in any one of means 1-16 was constructed. In particular, it is preferable to construct a multi-story wooden building using CLT as a flooring or wall material.

  According to the present invention, when a large tensile force is generated between the structural frame and the foundation or between the column and the horizontal member or the diagonal member, the tensile force compresses the cylindrical body and seats. Because it is consumed as the energy to bend, the overall toughness of the joint fittings including the cylindrical body can be secured without damaging the metal parts used in the joint parts other than the cylindrical body, As a result, the tensile performance of the structural housing can be improved.

The perspective view of the 1st joining metal fitting used by the joining structure of the structural frame of the wooden building of Embodiment 1 of this invention. The perspective view of the 2nd joining metal fitting used by the joining structure of the structural frame of the wooden building of the same Embodiment 1. FIG. (A) is a perspective view, (b) is sectional drawing in the AA line of the metal fittings for column bases used with the joining structure of the structural frame of the wooden building of Embodiment 1 same. (A) of a pipe used by the joining structure of the structural frame of the wooden building of the same Embodiment 1 is a perspective view, (b) is a longitudinal cross-sectional view. (A) is explanatory drawing explaining the state just before connecting the 1st and 2nd joining metal fitting to a wall panel in the joining structure of the structural frame of the wooden building of Embodiment 1, (b) is a bottom view of a wall panel. . Explanatory drawing of the state which connected the 1st and 2nd joining metal fitting to the wall panel in the joining structure of the structural frame of the wooden building of Embodiment 1. FIG. Explanatory drawing explaining the state just before installing the wall panel of the state of FIG. 6 on the column base metal fittings. Explanatory drawing explaining the state which installed the wall panel of the state of FIG. 6 on the column base metal fittings. (A) is a front view of the lag screw bolt used by the joining structure of the structural frame of the wooden building of Embodiment 2, (b) is sectional drawing in BB of (a). (A) is a perspective view, (b) is sectional drawing in CC line of the metal fittings for column bases used with the junction structure of the structural frame of the wooden building of the same Embodiment 2. FIG. Explanatory drawing explaining the state just before making a lag screw bolt bite into a pillar material in the joining structure of the structural frame of the wooden building of Embodiment 2. FIG. Explanatory drawing explaining the state which made the lag screw bolt dig into the pillar material from the state of FIG. Explanatory drawing explaining the state just before installing the column material of the state of FIG. 12 on a column base metal fitting. Explanatory drawing explaining the state which installed the pillar material of the state of FIG. 12 on the column base metal fittings. The perspective view of the joining metal fitting used by the joining structure of the structural frame of the wooden building of Embodiment 3 of this invention. (A) is a disassembled perspective view explaining the connection structure at the time of connecting a joining metal fitting to the end surface of a beam in the joining structure of the structural frame of the wooden building of Embodiment 3. FIG. The disassembled perspective view explaining the connection structure at the time of connecting the beam of FIG. 16 to a pillar material in the joining structure of the structural frame of the wooden building of Embodiment 3. FIG. (A) is a perspective view, (b) is a side view, (c) is a DD cross-sectional view in (b) of the box-type metal fitting used in the joint structure of the structural frame of the wooden building of the fourth embodiment. Explanatory drawing explaining the connection structure at the time of connecting the beam of FIG. 16 to the pillar material which attached the box-type metal fitting in the joining structure of the structural frame of the wooden building of Embodiment 4. FIG. (A) is explanatory drawing explaining the state immediately before letting a lag screw bolt bite into a pillar material in the end surface of a beam in the joining structure of the structural frame of the wooden building of other embodiment, (b) is also the state bitten in the same FIG. Explanatory drawing explaining the fixing method at the time of installing column material on a column base metal fitting while fixing a column base metal fitting to an anchor bolt in the joining structure of the structural frame of the wooden building of other embodiment. Explanatory drawing explaining the state which fixed the column base metal fitting to the anchor bolt from the state of FIG. 21, and installed the column material on the metal column base metal. (A) is a front view of the lag screw bolt used by the joining structure of the structural frame of the wooden building of other embodiment, Similarly (b) is a side view. Explanatory drawing explaining the state which installed the column material on the column base metal fittings using the lag screw bolt of FIG.

Hereinafter, the joining structure of the structural frame of the wooden building which is one embodiment of this invention is demonstrated based on drawing.
(Embodiment 1)
FIG. 1 shows a first joining metal fitting 1 used in the joining structure of the first embodiment. The first joining metal fitting 1 is composed of a base plate 2 and an insertion plate 3 erected on the base plate 2. The insertion plate 3 is fixed on the base plate 2 by welding. In the drawing, the trace of welding (so-called bead) is omitted. The base plate 2 configured in a rectangular shape in plan view is formed with four through holes 4 communicating with the front and back at positions that are symmetric in four directions. Protrusions 5 are formed in the vicinity of each through hole 4 on the base plate 2. The protrusion 5 is formed at a position that is located on the outer side of the opposite side of the regular hexagonal head portion 27a and on the inner side of the diagonal when a bolt 27 described later is inserted into the through hole 4.
The insertion plate 3 extends perpendicularly to the upper surface of the base plate 2, and a plurality of metal fitting side pin holes 6 through which drift pins 28 described later are inserted are formed.
In the present embodiment, as an example, the base plate 2 is configured to have a left-right width of 260 mm, a front-rear width of 150 mm, and a thickness of 32 mm, and the insertion plate 3 is configured of a height of 300 mm and a width of 240 mm.
FIG. 2 shows a second joint fitting 7 used in the joint structure of the first embodiment. Similarly to the first joining metal fitting 1, the second joining metal fitting 7 is composed of a base plate 8 and an insertion plate 9 erected on the base plate 8. The insertion plate 9 is fixed on the base plate 8 by welding. In the drawing, the trace of welding (so-called bead) is omitted. The base plate 8 that is rectangular in plan view is formed with four through-holes 10 that communicate with the front and back at positions that are symmetric in four directions. Similar to the first fitting 1, projections 12 are formed in the vicinity of each through hole 10. The base plate 8 of the second fitting 7 is configured in the same shape as the base plate 2 of the first fitting 1. The insertion plate 9 extends perpendicularly to the upper surface of the base plate 8, and a plurality of metal fitting side pin holes 11 through which the drift pins 28 are inserted are formed in the same manner as the first joining metal fitting 1. In the present embodiment, the insertion plate 9 of the second joint fitting 7 has a shorter vertical width (back) than the insertion plate 3 of the first joint fitting 1, and the number of the metal-side pin holes 11 accordingly. Is also configured to be smaller than the insertion plate 3 of the first joint fitting 1.
In this embodiment, as an example, the base plate 9 is configured to have a left-right width of 260 mm, a front-rear width of 150 mm, and a thickness of 32 mm, and the insertion plate 3 is configured to have a height of 140 mm and a width of 240 mm.

FIG. 3 shows a column base bracket 13 used in the joint structure of the first embodiment. The column base bracket 13 is arranged with a space between the top plate 14, the bottom plate 15 disposed below the top plate 14 arranged parallel to the top plate 14, and the top plate 14 and the bottom plate 15. It consists of two types of leg plates 16 and 17 provided. The top plate 14 is formed with a total of 12 through holes 18 of 4 × 3 that are used when the two first joining fittings 1 and the one second joining fitting 7 are connected and fixed. Twelve through-holes 19 are formed in the bottom plate 15 for connecting and fixing the column base bracket 13 to the foundation side.
The first leg plate 16 extends along the longitudinal direction at the center in the front-rear direction of the column base metal 13 and is configured to have the same length as the top plate 14 and the bottom plate 15. In the present embodiment, the top plate 14, the bottom plate 15 and the first leg plate 16 utilize integrally formed H steel. The second leg plate 17 is a steel plate extending from the first leg plate 16 in a direction perpendicular to the first leg plate 16 between the top plate 14 and the bottom plate 15. Nine pieces of the second leg plates 17 are arranged in the front-rear direction across the first leg plate 16. Each second leg plate 17 is joined to the top plate 14 and the bottom plate 15 by welding at the vertical position. Further, the base end face of the second leg plate 17 is joined to the side surface of the first leg plate 16 by welding. In the drawing, the trace of welding (so-called bead) is omitted. The through holes 18 and 19 formed in the top plate 14 and the bottom plate 15 are arranged one by one so as to face the space surrounded by the three sides of the first leg plate 16 and the two second leg plates 17. ing. As an example, in the present embodiment, the top plate 14 and the bottom plate 15 are configured to have a front-rear width of 150 mm, a left-right width of 1000 mm, and an interval (height) of 294 mm between the top plate 14 and the bottom plate 15.
4A and 4B show a pipe 21 as a cylindrical body used in the joining structure of the first embodiment. The pipe 21 is made of a seamless iron-based alloy. As an example, the pipe 21 has a thickness of 3 mm, an outer diameter of 50 mm, and a length of 50 mm. Specifically, the shape of the pipe 21 is a force smaller than the yield stress of the metal fittings other than the pipe 21 when a tensile force is generated in a joint structure using the metal fittings 38 and the like. It is necessary to determine that the cylinder is compressed by a force greater than the compressive force, yields, and buckles (plastically deform). The same applies to the following embodiments.

The joining structure using these metal fittings etc. is demonstrated based on FIGS.
In the present embodiment, as an example, the wall panel W of a wooden building is connected and fixed to the foundation B using the two first joining fittings 1 and the one second joining fitting 7 and the column base fitting 13. explain. In the present embodiment, as an example of the wall panel W, a CLT panel having a five-layer structure is cut and used as appropriate.
As shown in FIGS. 5 (a) and 5 (b), a second joint fitting 7 is arranged in the center on the lower end surface (bottom face) Wa of the wall panel W, and the first joint fitting 1 is engaged on the left and right sides thereof. Notches 23 are formed, and three slits 24 are formed from the lower end surface Wa to the inside of the wall panel W so as to face each notch 23. On the lower end surface Wa of the wall panel W and around each slit 24, a recess 25 is formed at a position corresponding to the through holes 4 and 10. The thickness and width of the notch 23 are the same size as the thickness of the base plates 2 and 8 and the length of one side. The thickness, width and depth of the internal space of each slit 24 are configured to be the same size as the thickness, width and length of the insertion plates 3 and 9 of the joint fittings 1 and 2. In the wall panel W, a wood part side pin hole 26 is formed so as to intersect with each slit 24. The wood side pin hole 26 is formed over the front and back surfaces of the wall panel W. The wood part side pin hole 26 is formed at a position corresponding to the metal part side pin holes 6 and 11 formed in the insertion plates 3 and 9.
Moreover, as shown in FIGS. 5 to 7, well-known bolts 27, washers 29, nuts 30, and nuts 32 are used as joining fittings other than the above. The bolt 27 includes a head portion 27a having a regular hexagonal outer shape and a male screw portion 27b having a male screw formed on the outer periphery serving as a bolt main body. There are two types of bolts 27, one for the first joint fitting 1 having a long bolt body and the second joint 7 having a relatively short bolt body. The nuts 30 and 32 have a hexagonal surface formed on the outer periphery for engaging the jig on the outer periphery, and a female screw is formed on the inner peripheral surface of the through hole communicating with the nut.

  First, the operator attaches the two first joining fittings 1 and the one second joining fitting 7 to the lower end surface Wa of the wall panel W. Prior to the mounting, as shown in FIG. 5A, the insertion plates 3 and 9 of the base plates 2 and 8 are erected upright with respect to the two first joining fittings 1 and the one second joining fitting 7. The bolts 27 are dropped into the through holes 4 and 10 from the front end side. The bolt 27 is locked around the through-holes 4 and 10 by the head portion 27a and is supported on the base plates 2 and 8 in a suspended form, and the lower portion of the male screw portion 27b is below the base plates 2 and 8 in the suspended support state. Protrusively. Next, in the three cutouts 23 on the lower end surface Wa of the wall panel W, the second joint fitting 7 is arranged in the center, and the first joint fitting 1 is arranged on the left and right sides thereof, and the insertion plates 3 and 9 are inserted into the slits 24. To do. Since the insertion plates 3 and 9 are accurately accommodated in the slit 24, the head portion 27 a of each bolt 27 is accommodated in the recess 25. When the base plates 2 and 8 are accommodated in the notch 23, the lower surfaces of the base plates 2 and 8 and the lower end surface Wa of the wall panel W are flush with each other. Since the metal-side pin holes 6 and 11 and the wood-side pin hole 26 are collated in this state, the operator drives the drift pin 28 into the pin holes 6, 11, and 26 from the front side of the wall panel W. As shown in FIG. 5, the mounting operation of the first joint fitting 1 and the second joint fitting 7 to the wall panel W is completed. As described above, the two first joining fittings 1 and the one second joining fitting 7 are attached to the lower end surface Wa of the wall panel W in advance so that the male screw portion 27b of the bolt 27 protrudes from the lower end surface Wa. .

Next, the wall panel W is installed on the column base bracket 13 fixed on the foundation B. The wall panel W is fixed on the column base metal 13 as follows.
A total of twelve anchor bolts A are erected at the position where the column base bracket 13 is installed. The position of the anchor bolt A coincides with the position of the through hole 19 formed in the bottom plate 15 of the column base metal 13. The operator guides the anchor bolt A to be inserted into the through hole 19 of the bottom plate 15 of the column base metal 13. Then, the nut 30 is screwed to the anchor bolt A via the washer 29, and the nut 30 is moved in the direction of the foundation B by the screw action with the anchor bolt A by a jig (not shown) to tighten the base for the column base 13 Fix on B.
The operator guides the wall panel W such that the male screw portion 27b of the bolt 27 protruding from the lower end surface Wa is inserted into the through hole 18 formed in the top plate 14 with respect to the column base bracket 13. . In a state in which the wall panel W is installed on the top plate 14 of the column base bracket 13, the male screw portions 27 b of the respective bolts 27 of the wall panel W are inserted through the corresponding through holes 18 of the top plate 14. Exposed downward. Then, as shown in FIG. 7, the washer 29, the pipe 21, and the washer 29 are attached in this order to the male threaded portion 27b of the bolt 27 of the first joint fitting 1, and finally the nut 32 is screwed onto the male threaded portion 27b. Put on. Then, the pipe 21 is tightened in the direction of the top plate 14 by moving the nut 32 in the direction of the top plate 14 by the screw action with the male screw portion 27b, and the wall panel W is connected to the top of the column base bracket 13 together with the first joint fitting 1. To be fixed to. The head 27 a of the bolt 27 has a positional relationship that interferes with the protrusion 5 when the nut 32 is tightened, so that the bolt 27 does not rotate with the nut 32.
In addition, the nut 32 is screwed to the male thread portion 27 b of the bolt 27 through the single washer 29 without using the pipe 21 with respect to the second joint fitting 7. Then, the pipe 21 is tightened in the direction of the top plate 14 by moving the nut 32 in the direction of the top plate 14 by the screw action with the male screw portion 27b, and the wall panel W is connected to the top of the column base bracket 13 together with the second joint fitting 7. To be fixed to. It is the same as above that the bolt 27 does not rotate. The installation work on the column base metal 13 of the wall panel W is completed by the above process.
In the joining structure of the structural frame of the wooden building constructed as described above, the metal fittings (the first metal fitting 1, the second metal fitting 7, the column base metal 13, the pipe 21, the bolt 27, etc.) are in the vertical direction. Toughness is ensured by acting on the tensile force and lateral shearing force. When the wall panel W is lifted upward with respect to the column base bracket 13 due to an instantaneous strong pulling force such as an earthquake, the pipe 21 is compressed and buckled (plastically deformed). Thus, the work performed by the pulling force is consumed as energy for buckling the pipe 21.

(Embodiment 2)
Next, a second embodiment will be described as a variation of the joining structure of the structural frame of the wooden building of the first embodiment.
FIG. 9 shows a lag screw bolt 35 used in the joint structure of the second embodiment. The lag screw bolt 35 is a screw member provided with a lag screw portion 35a on the outer periphery. In the second embodiment, as an example, the lag screw bolt 35 has a total length of 30 cm, and the lag screw portion 35a is formed over 20 cm (about 66% of the total length). In the second embodiment, the screw pitch in the lag screw portion 35a is 6.0 mm as an example, and the inner diameter (valley diameter) is 16.7 mm and the outer diameter (peak diameter) is 21.2 mm. A nut portion 35b is formed at a position adjacent to the lag screw portion 35a. The nut portion 35b is a portion to which a jig (not shown) is engaged when the lag screw bolt 35 is rotated, and has an outer diameter of a regular hexagonal shape. The width (axial height) of the nut portion 35b is 1.5 cm as an example. A male threaded portion 35c is formed over the base end region adjacent to the nut portion 35b over 8.5 cm (about 27% of the total length). In the second embodiment, the screw pitch in the male screw portion 35c is 1.0 mm as an example, and the inner diameter (valley diameter) is 14.91 mm and the outer diameter (peak diameter) is 16.0 mm.
FIG. 10 shows a column base bracket 37 used in the joint structure of the second embodiment. The column base bracket 37 is arranged with a space between the top plate 38, the bottom plate 39 disposed below the top plate 38 arranged in parallel to the top plate 38, and the top plate 38 and the bottom plate 39. The three legs 40 are provided. Four through holes 41 are formed in the top plate 38. The bottom plate 39 is formed with two through holes 42 for connecting and fixing the column base bracket 37 to the foundation side. At the center position in the left-right direction and the front-rear direction of the top plate 38, a diver 43 is fixed by welding. As an example, in the column base metal fitting 37 of the second embodiment, the top plate 38 and the bottom plate 39 are configured to have a front-rear width of 150 mm, a left-right width of 650 mm, and a distance (height) of the top plate 38 and the bottom plate 39 of 294 mm.

Next, the joining structure using these metal fittings etc. is demonstrated based on FIGS. Note that the pipe 21, washer 29, nut 32, and the like used in the joining structure of the second embodiment have the same configuration as that of the first embodiment, and thus detailed description thereof is omitted. In the present embodiment, a case in which a pillar P of a wooden building is connected and fixed to the foundation B by using a lag screw bolt 37 and a column base bracket 37 will be described as an example. In this embodiment, the pillar material P uses a mug material. A recess 45 corresponding to the outer shape of the guide hole 44 of the lag screw portion 35 a of the lag screw bolt 35 and the diver 43 is formed on the lower end surface Pa of the pillar material P.
First, as shown in FIG. 11, the operator uses a jig (not shown) to cause the lag screw portion 35 a of the lag screw bolt 35 to bite into the pillar material P using the guide hole 44 in advance. That is, it is set as the state which protruded the external thread part 35c of the lag screw bolt 35 from the lower end surface Pa of the pillar material P (state of FIG. 12).

Next, the column material P is installed on the column base bracket 37 fixed on the foundation B. The column base bracket 37 is fixed on the foundation B as follows. Four anchor bolts A are erected at the position where the column base bracket 37 is installed. The position of the anchor bolt A coincides with the position of the through hole 42 formed in the bottom plate 39 of the column base bracket 37. The operator guides the anchor bolt A to be inserted into the through hole 42 of the bottom plate 39 of the column base bracket 37. Then, the nut 30 is screwed to the anchor bolt A via the washer 29, and the nut 30 is moved in the direction of the foundation B by a screw action with the anchor bolt A by a jig (not shown), thereby fixing the fastening column base bracket 37 to the foundation B. Try to fix it on top.
The operator installs the column material P on the top plate 39 with respect to the column base bracket 37 thus fixed. The position of the through hole 41 formed in the top plate 38 coincides with the position of the male screw portion 35c of the lag screw bolt 35 protruding from the lower end of the column member P. As shown in FIG. 13, the operator guides the male screw portion 35 c to be inserted into the through hole 41 of the top plate 38 of the column base bracket 37. In a state where the column material P is installed on the top plate 38 of the column base metal fitting 37, it coincides with the position of the male screw portion 35c of each lag screw bolt 35. The operator exposes the male screw portion 35 c of the top plate 38 of the column base bracket 37 to the lower side of the top plate 38. Further, the dowel 43 is fitted in the recess 45.
Then, the washer 29, the pipe 21, and the washer 29 are attached to each male screw portion 35c in this order, and finally the nut 32 is screwed to the male screw portion 35c. Then, the nut 32 is moved in the direction of the top plate 14 by the screw action with the male screw portion 35c, so that the pipe 21 is fastened in the direction of the top plate 14 and the column member P is fixed on the column base bracket 37 together with the joint fitting 1. (State of FIG. 14). With the above steps, the installation work of the column material P on the column base metal fitting 37 is completed.
In the joining structure of the structural frame of the wooden building constructed as described above, the above-mentioned metal fittings (lag screw bolt 35, column base metal fitting 37, pipe 21, nut 32, etc.) have a vertical pulling force or a horizontal shearing force. Acts to ensure toughness. When the column material P is lifted upward with respect to the column base bracket 37 by an instantaneous strong pulling force such as an earthquake, the pipe 21 is compressed and buckled (plastically deformed). Thus, the work performed by the pulling force is consumed as energy for buckling the pipe 21.

(Embodiment 3)
Next, the joining structure of the structural frame of the wooden building of Embodiment 3 is demonstrated.
FIG. 15 shows a joint fitting 51 used in the joint structure of the third embodiment. The joint fitting 51 includes a base plate 52 and an insertion plate 53 erected on the base plate 52. The insertion plate 53 is fixed on the base plate 52 by welding. In the drawing, the trace of welding (so-called bead) is omitted. The base plate 52 that is formed in a square shape in plan view is formed with four through holes 54 that communicate with the front and back at positions that are symmetric in four directions. Protrusions 55 are formed in the vicinity of the through holes 54 on the base plate 52. The protrusion 55 is formed at a position on the outside of the opposite side of the regular hexagonal head portion 27a when the bolt 27 described later is inserted through the through hole 54, and on the inside of the diagonal. The planar shape of the base plate 52 matches the shape of the end face Ta of the beam T described later.
The insertion plate 53 extends orthogonally to the upper surface of the base plate 52, and has a plurality of metal fitting side pin holes 56 through which drift pins 28 described later are inserted. The pipe 21, the washer 29, the nut 32, the drift pin 28, and the like used in the joint structure of the third embodiment have the same configuration as that of the first embodiment, and thus detailed description thereof is omitted.

In the present embodiment, a case in which a columnar member P and a beam T of a wooden building are connected and fixed using a joint fitting 51 will be described as an example. In this embodiment, as an example, the pillar material P uses H steel having an H-shaped cross section, and the beam T uses a stripping material.
As shown in FIG. 16A, a slit 57 is formed in the end face Ta of the beam T. Concave portions 58 are formed at positions corresponding to the through holes 54 of the base plate 52 of the joint fitting 51 around the slits 57 on the end face Ta. The thickness, width, and depth of the internal space of each slit 57 are configured to be the same size as the thickness, width, and length of the insertion plate 53 of the joint fitting 51. In the beam T, a wood part side pin hole 59 intersecting with the slit 57 is formed. The wood-side pin hole 59 is formed over the left and right side surfaces of the beam T. The wood part side pin hole 59 is formed at a position corresponding to the metal part side pin hole 56 formed in the insertion plate 53.
First, the fitting 51 is attached to the end face Ta of the beam T in which such a joint is formed. The operator inserts a total of four bolts 27 into the through holes 54 from the side where the insertion plate 53 is erected through the washer 29. Since the bolt 27 is locked around the through hole 54 by the head portion 27a, the bolt 27 does not fall out of the through hole 54. In this supported state, the lower portion of the male screw portion 27 b protrudes forward of the base plate 52. Next, the insertion plate 53 is inserted into the slit 57 formed in the end face Ta of the beam T. Since the insertion plate 53 is accurately accommodated in the slit 24, the head portion 27 a of each bolt 27 is also accommodated in the recess 58.
Since the metal-side pin hole 56 and the wood-side pin hole 59 are collated in this state, the operator drives the drift pin 28 into the pin holes 56 and 59 from the side surface g, as shown in FIG. The attachment work of the joining bracket 51 to the beam T is completed. As a result, the joint fitting 51 is mounted on the end surface Ta of the beam T, and the male screw portions 27b of the four bolts 27 protrude from the end surface Ta.
As shown in FIG. 17, the four bolts 27 projecting from the end face Ta of the beam T at the mounting position of the beam T of the pillar material P, that is, the plane portion (side contact plate) on the side where the beam T abuts. A through hole 60 corresponding to the male screw portion 27b is formed.

In such a configuration, the operator guides the male screw portion 27b of the bolt 27 protruding from the end surface Ta of the beam T to be inserted into the through hole 60 at the attachment position of the column member P. Then, the washer 29, the pipe 21, and the washer 29 are attached in this order to the male screw portion 27b of the bolt 27 of the joint fitting 51, and finally the nut 32 is screwed to the male screw portion 27b. The nut 32 is moved in the direction of the column material P by the screw action with the male screw portion 27 b, thereby tightening the pipe 21 in the direction of the column material P and fixing the beam T to the column material P together with the joint fitting 51.
In the joining structure of the structural frame of the wooden building thus configured, the metal fittings (joining metal fittings 51, pipes 21, bolts 27, etc.) act on horizontal pulling force and bending force to ensure toughness. . And when a momentary strong pulling force such as an earthquake acts and the beam T is strongly pulled against the column P, the pipe 21 is compressed and buckled (plastically deformed), The work performed by the pulling force is consumed as energy for buckling the pipe 21.

(Embodiment 4)
Next, a fourth embodiment will be described as a variation of the joining structure of the structural frame of the wooden building of the third embodiment.
The fourth embodiment is an example of a joining structure of the column material P and the beam T as in the third embodiment, but a column material P made of reinforced concrete is used. Since the configuration on the side of the beam T on which the joint fitting 51 is mounted is the same as that of the third embodiment, the description thereof is omitted.
18A to 18C show a box-type metal fitting 61 used in the joining structure of the fourth embodiment. The box-shaped metal fitting 61 is a rectangular box-shaped flat box shape in which four rectangular steel plates of a top plate 61a, a bottom plate 61b, a front plate 61c serving as a side contact plate, and a back plate 61d facing the column P are orthogonal to each other. An external body 62 is provided. A reinforcing plate 61e whose end face is in contact with the upper plate 61a, the bottom plate 61b, the front plate 61c, and the back plate 61d is fixed inside the main body 62 so as to divide the left and right regions. As shown in FIG. 18A, the front plate 61c is formed with four through holes 63 for connecting and fixing to the beam T. Four through holes 64 for connecting and fixing to the pillar material P are formed in the back plate 61d. The pipe 21, the washer 29, the nut 32, the drift pin 28, and the like used in the joint structure of the third embodiment have the same configuration as that of the first embodiment, and thus detailed description thereof is omitted.

As shown in FIG. 19, the operator inserts the through holes 64 of the back plate 61d of the box-type metal fitting 61 into the four anchor bolts A (two in the figure) embedded in the reinforced concrete column material P. Then, the nut 30 is screwed to the anchor bolt A through the washer 29, and the nut 30 is moved in the direction of the back plate 61d by the screw action with the anchor bolt A by a jig (not shown) to thereby fix the box-type metal fitting 61. Fix to the column P.
The operator guides the column member P so that the male screw portion 27 b of the bolt 27 protruding from the end surface Ta of the beam T is inserted into the through hole 63 of the box-type metal fitting 61. Then, the washer 29, the pipe 21, and the washer 29 are attached in this order to the male screw portion 27b of the bolt 27 of the joint fitting 51, and finally the nut 32 is screwed to the male screw portion 27b. Then, the nut 21 is moved in the direction of the front plate 61c by the screw action with the male screw portion 27b, whereby the pipe 21 is tightened in the direction of the front plate 61c, and the beam T is fixed to the box-type metal fitting 61 together with the joint fitting 51. .
In the joining structure of the structural frame of the wooden building constructed as described above, the metal fittings (joining metal fitting 51, box-type metal fitting 61, pipe 21, nut 32, etc.) act on the pulling force and bending force in the horizontal direction. To ensure toughness. And when a momentary strong pulling force such as an earthquake acts and the beam T is strongly pulled against the column P, the pipe 21 is compressed and buckled (plastically deformed), The work performed by the pulling force is consumed as energy for buckling the pipe 21.

(Embodiment 5)
Next, a fifth embodiment will be described as a variation of the joint structure of the structural frame of the wooden building of the second embodiment.
In the fifth embodiment, the pipe 21 is arranged when the column base bracket 37 is fixed on the foundation B via the anchor bolt A in the second embodiment. As shown in FIG. 21, the washer 29, the pipe 21, and the washer 29 are attached in this order to the anchor bolt A protruding upward from the through hole 42 of the bottom plate 39 of the column base bracket 37 on the foundation B, and finally the nut. 32 is screwed to the outer periphery of the anchor bolt A. Then, the nut 32 is moved in the direction of the bottom plate 39 by the screw action with the anchor bolt A, whereby the pipe 21 is clamped in the direction of the bottom plate 39 and the column base bracket 37 is fixed on the foundation B (state of FIG. 22). .
In the joining structure of the structural frame of the wooden building constructed as described above, the above-mentioned metal fittings (anchor bolt A, column base metal fitting 37, pipe 21, nut 32, etc.) are subject to vertical pulling force and lateral shearing force. Acts against to ensure toughness. And when a momentary strong pulling force such as an earthquake acts and the column base bracket 37 is lifted upward with respect to the foundation B, the pipe 21 is compressed and buckled (plastically deformed), The work performed by the pulling force is consumed as energy for buckling the pipe 21. The relationship between the column member P and the column base bracket 37 is the same as that of the second embodiment. In the fifth embodiment, the toughness of the metal fitting is secured by the cooperation of the upper and lower pipes 21.

The following effects are produced by the embodiment as described above.
(1) In the first, second, and fifth embodiments, when a strong pulling force in the vertical direction is applied, the pipe 21 is compressed and buckled to consume energy of the pulling force. It becomes difficult to damage the structural housing and metal fittings, and as a result, the tensile performance of the structural housing can be improved.
Also in the third and fourth embodiments, when a strong tensile force is applied in the lateral direction, the pipe 21 is compressed and buckled, so that the energy of the tensile force is consumed. It is difficult to damage the metal fittings and the like, and the tensile performance of the structural housing can be improved. Further, in the joint structure such as the beam and the column as in the third and fourth embodiments, not only the tensile force but also the bending force acts on the joint portion, but the pipe 21 is compressed against such a bending force. Since it buckles, the energy of the bending force is consumed, and the structural housing and metal fittings of the pipe 21 are hardly damaged. As a result, the pulling performance of the structural housing can be improved.
(2) In the first embodiment, the pipe 21 is sandwiched between the top plate 14 of the column base bracket 13 and the nut 32 and receives a tensile load as a compressive force. In this case, the top plate transmits the load. Since the base plate 2 of the first fitting 1 is disposed in close contact with the base plate 14, the top plate 14, which has a strong force to sandwich the pipe 21, is reinforced by the base plate 2. Further, not only in terms of reinforcement, the thickness of the base plate 2 on the first joint fitting 1 side is not changed without changing the design of the top plate 14 of the column base fitting 13 when the pipe 21 is arranged to receive a strong tensile force. This is advantageous because it can be dealt with by adjusting. The same applies to the third and fourth embodiments.
(3) In the first embodiment, for a strong tensile force, the force acting on the structural housing is mainly limited by compressing and buckling the pipe 21 of the first joint fitting 1 and at the same time the lateral shearing force. Is held not only by the first joining fitting 1 but also by the second joining fitting 7, so that the strength of the structure against an external force applied near the foundation is maintained.
(4) In the second embodiment, the pipe 21 secures a deformability against a strong pulling force, and at the same time the lateral direction shear force is engaged with the column member P, so that the shear direction yield strength is increased. improves. As in (3) above, the strength of the structure against the external force applied near the foundation is maintained.

The above embodiments are merely described as specific embodiments for illustrating the principle of the present invention and the concept thereof. That is, the present invention is not limited to the above embodiment. The present invention can also be embodied in the following modified form, for example.
In the above embodiment, only the partial joining of the structural frame of the wooden building has been described. However, for example, it is possible to construct an entire multi-story wooden building with such a joining structure.
-The shape and size of the above-mentioned metal fittings are examples, and can be freely changed and implemented without departing from the spirit of the present invention.
-The number of bolts 27 used in the first and third embodiments can be freely changed and used according to the strength calculation. Further, the number of pipes 21 used can be changed accordingly.
The lag screw bolt 35 without the head portion 27a may be used in the first embodiment, the third embodiment, and the fourth embodiment instead of the bolt 27.
In the third and fourth embodiments, the joint fitting 51 is also attached to the end face Ta of the beam T together with the bolt 27. However, as shown in FIGS. 20 (a) and 20 (b), the end face of the beam T is used. Guide holes 66 are formed in Ta, and for example, four lag screw bolts 67 similar to the lag screw bolts 35 of the second embodiment are embedded in the same manner as in the second embodiment and applied to the third and fourth embodiments. You may make it do. Column material P is made of lag screw bolt 37 and column base bracket 37.
In the second and fourth embodiments, the lag screw bolt 35 as shown in FIG. 9 is used together with the nut 32 to tighten the pipe 21, but for example, a lag screw bolt 71 as shown in FIG. 23 may be used. . 23 has a lag screw part 71a and a shaft part 71b without a screw, and a head part 71c is formed integrally with the lag screw bolt 71 at the tip of the shaft part 71b. And it is set as the structure which clamps the pipe 21 with this head part, without using the nut 32. FIG. For example, in the case as in the second embodiment, when fixing the column member P to the column base bracket 37 using the lag screw bolt 71, the following method is adopted. Before fixing the column base bracket 37 to the foundation, the column material P is first placed (contacted) on the top plate 38 of the column base bracket 37, and the pipe 21 is disposed below the top plate 38. Then, the lag screw bolt 71 is advanced from the lag screw portion 71a side so as to bite into the pillar material P through the pipe and the top plate 39, and the pipe 21 is tightened to the top plate 39 side by the head portion 71c. Then, the column base bracket 37 is fixed to the foundation B side via the anchor bolt A. FIG. 24 shows a state in which the column base bracket 37 is connected and fixed to the column P by such a construction method, and the column base bracket 37 is fixed to the foundation B.
-Although the example which joins the beam T to the pillar material P was given in the said Embodiment 3 and 4, you may make it apply when a diagonal material is joined to the pillar material P. FIG.
In Embodiment 4 described above, concrete is used for the pillar material P, and the box-type metal fitting 61 is fixed to the concrete pillar material P. It is possible to make the structural material of the present invention by fixing using the.
In the fifth embodiment, the pipe 21 is arranged at the upper and lower positions of the column base bracket 37, but the pipe 21 may be arranged only on the anchor bolt A side.
-In Embodiment 5, you may make it comprise the shape (a diameter, thickness, length, etc.) element and raw material of the upper and lower two pipes 21 as another thing (that is, set as different intensity | strength).
The material of the pipe 21 may also be a metal material other than the iron-based alloy as described above. Moreover, if it is called consumption of energy with respect to tensile force other than compression, you may use the ceramic which exhibits the intensity | strength equivalent to a metal.
The washer 29 is preferably disposed as a part of the metal fitting in order to give a uniform load to the pipe 21, but it is not necessary if the uniform load can be realized only by the pipe 21.

The present invention is not limited to the configuration described in the above embodiment. The components of the above-described embodiments and modifications may be arbitrarily selected and combined. In addition, any component of each embodiment or modification, and any component described in the means for solving the invention or any component described in the means for solving the invention And may be combined arbitrarily. We also intend to acquire rights in these amendments or divisional applications.
Moreover, it has the intention to acquire the right about a whole design or a partial design by the change application to a design application. The drawing shows the entire apparatus as a solid line, but includes not only the entire design but also a partial design that is claimed for a part of the apparatus. For example, it is a drawing that includes a part of the apparatus as a partial design as well as a part of the apparatus as a partial design. A part of the device may be a part of the device or a part of the member.

  13, 37: Column base brackets, 14, 38: Top plate, 18, 41: Through holes, 21: Pipes as cylinders, 27: Bolts as rod-shaped brackets, 27a: Head portions, 27b: Male screw portions, 32 ... Nuts as female screw members, 28 ... Nuts as female screw members, 35, 67 ... Lug screw bolts as rod-shaped metal fittings, A ... Anchor bolts, B ... Foundations, P ... Column members as structural housings, W ... Wall panel as a structural enclosure.

Claims (17)

In the joint structure of the structural frame of the wooden building where the structural frame is installed on the column base bracket fixed to the foundation,
In a state where the structural housing is installed on the top plate of the column base bracket, a male screw portion formed at least near the lower end of the rod-shaped bracket embedded on the structural housing side is formed on the top plate. Protruding below the top plate from the hole,
A female screw member is screwed to the outer periphery of the male screw portion so as to be movable in the axial direction, and a cylindrical body is disposed between the female screw member and the top plate by axial movement due to the screw action of the female screw member. A joining structure of a structural frame of a wooden building, wherein the cylindrical body is tightened in the direction of the top plate. In the joint structure of the structural frame of the wooden building where the structural frame is installed on the column base bracket fixed to the foundation,
In the state in which the structural housing is installed on the top plate of the column base bracket, a male screw portion formed at least near the lower end of the rod-shaped bracket that is supported so as to be movable in the axial direction on the structural housing side is the top. Protruding below the top plate from a through hole formed in the plate,
A head portion is integrally formed on the lower end side of the male screw portion, a cylinder is disposed between the head portion and the top plate, and the rod-shaped metal fitting is moved upward by a screw action so that the head portion moves the head portion. A joining structure for a structural frame of a wooden building, wherein a cylindrical body is fastened in the direction of the top plate.   The joint structure for a structural frame of a wooden building according to claim 1 or 2, wherein the bar-shaped metal frame is connected to a connection metal bracket embedded in a wooden structure frame.   The connection fitting has a plate portion mounted on the top plate in an overlapping manner with respect to the same top plate, the rod-shaped fitting communicates the plate portion and the top plate, and the male screw portion is connected to the top plate. The joint structure of the structural frame of the wooden building according to claim 3, wherein the structure is protruded downward from the board. The column base bracket is fixed by anchor bolts embedded in the foundation,
The column base bracket is placed on the foundation via a bottom plate, and the anchor bolt protrudes above the bottom plate from a through hole formed in the bottom plate,
A female screw member is screwed to the outer periphery of the male screw portion of the anchor bolt so as to be movable in the axial direction, and the second cylindrical body is disposed between the female screw member and the bottom plate. The joining structure of the structural frame of the wooden building according to any one of claims 1 to 4, wherein the second cylinder is tightened in the direction of the bottom plate by axial movement by a screw action. In the joint structure of the structural frame of the wooden building where the structural frame is installed on the column base bracket fixed to the foundation,
The column base bracket is placed on the foundation via a bottom plate, and anchor bolts embedded in the foundation are protruded above the bottom plate from through holes formed in the bottom plate,
A female screw member is screwed to the outer periphery of the male screw portion of the anchor bolt so as to be movable in the axial direction, and a cylindrical body is disposed between the female screw member and the bottom plate. A joining structure for a structural frame of a wooden building, wherein the cylindrical body is tightened in the direction of the bottom plate by axial movement. In the joining structure of the structural frame of a wooden building in which the wooden structural frame composed of horizontal members or diagonal members is supported on the column member,
In a state where the structural housing is brought into contact with the metal side contact plate on the column member side, a male screw portion formed at least near the tip of the rod-shaped metal fitting connected to the structural housing side is the side. Protruded from the through hole formed in the part contact plate to the back side of the side contact plate,
A female screw member is screwed to the outer periphery of the male screw portion so as to be movable in the axial direction, and a shaft is formed by the screw action of the female screw member in a state where a cylinder is disposed between the female screw member and the side contact plate. A joining structure for a structural frame of a wooden building, wherein the cylindrical body is tightened in the direction of the side contact plate by moving in a direction. In the joining structure of the structural frame of a wooden building in which the wooden structural frame composed of horizontal members or diagonal members is supported on the column member,
It is formed at least near the tip of a rod-shaped metal fitting that is arranged so as to be movable in the axial direction on the structure housing side in a state where the structure housing is in contact with the metal side contact plate on the column member side. The male screw part is projected from the through hole formed in the side contact plate to the back side of the side contact plate,
A head portion is integrally formed on the distal end side of the male screw portion, a cylinder is disposed between the head portion and the side contact plate, and the rod-shaped metal fitting is moved toward the side contact plate by a screw action. A joining structure for a structural frame of a wooden building, wherein the tubular body is tightened in the direction of the side contact plate by the head portion by being advanced.   The said column member is a product made from steel frame or concrete, The joining structure of the structural frame of the wooden building of Claim 7 or 8 characterized by the above-mentioned.   The joint structure of a structural frame of a wooden building according to any one of claims 7 to 9, wherein the rod-shaped metal fitting is connected to a connection metal fitting embedded in a wooden structural frame.   The connection fitting has a plate portion mounted on the side contact plate so as to overlap with the side contact plate, and the rod-shaped fitting communicates the plate portion and the side contact plate. The joint structure for a structural frame of a wooden building according to claim 10, wherein the male screw portion is protruded to the back side of the side contact plate.   The joint structure of a structural frame of a wooden building according to any one of claims 1, 2, and 7 to 9, wherein the rod-shaped metal fitting is directly embedded in a wooden structure frame.   13. The joining metal fitting according to claim 12, wherein the rod-like metal fitting is embedded in the wood structure structural body by a lag screw portion formed on an outer periphery.   The joint structure for a structural frame of a wooden building according to claim 1, 6 or 7, wherein a washer is interposed between the female screw member and the cylindrical body.   9. The structure of a wooden structure for a wooden building according to claim 2 or 8, wherein a washer is interposed between the head portion and the cylindrical body.   The said cylindrical body is metal, The joining structure of the structural frame of the wooden building in any one of Claims 1-15 characterized by the above-mentioned.   The wooden building provided with the junction structure of the structural frame of the wooden building in any one of Claims 1-16.

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