JP2018021401A - Junction structure of structural skeleton of wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a junction structure of a structural skeleton of a wooden building that has a second structural skeleton and a third structural skeleton coupled and fixed vertically to a floor panel 2 through joining metal fittings and that prevents excessive compressive force from being applied to the floor panel 2.SOLUTION: A lag screw bolt 11 having male screw parts 14 at both ends are screwed and embedded in a floor panel 2. Threaded washers 15 are threadably engaged with the male screw parts 14 of the lag screw bolt 11 which project from upper and lower faces 2a, 2b of the floor panel 2 in this state, respectively, and the threaded washers 15 are brought into contact with buckling holes 22, 23 of the floor panel 2. Then, base plates 6 of joining metal fittings 5 are arranged at outer face positions of the respective washers 15, respectively, and the joining metal fittings 5 are fixed between nuts 25 and threaded washers 15 so as to join the wall panel through the joining metal fittings 5.SELECTED DRAWING: Figure 8

Description

  The present invention is a wooden building in which metal joint fittings are fixed to the upper and lower surfaces of the first structural housing, respectively, and the second structural housing and the third structural housing are connected and fixed in the vertical direction via the joining hardware. The present invention relates to a joining structure of a structure housing of an object.

2. Description of the Related Art Conventionally, in order to connect and fix adjacent structural frames 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 column base joint fitting as a joint fitting is arranged on a base 15 as a structural case to connect a column 22 as a structural case. .

JP 2000-64426 A JP 2013-167133 A

The joining metal fittings of these Patent Documents 1 and 2 can join the structural housing with a joining strength different from that of the structure using no joining fitting. As such a joining structure, there is a case in which metal joining brackets are respectively fixed to the upper and lower surfaces of the first structural casing, and the second structural casing and the third structural casing are connected and fixed via the joining bracket. FIG. 12 shows such a joint structure. FIG. 12 shows that the second structural housing 101 and the third structural housing 102 (for example, a wall panel or a column) are joined to the first structural housing 100 (for example, a floor panel or a beam) in a T-shaped outer shape. It is a joining structure of a structural frame of a wooden building joined by a metal fitting 103. The first structural housing 100 is formed with a through hole 104 communicating vertically. Bolts 105 are inserted into the through-holes 104, and the upper and lower joint fittings 103 are arranged with respect to the first structural housing 100 so as to intersect the bolts 105, and the first structure is formed by the nuts 105 screwed into the bolts 105. It is fastened and fixed with a housing 100 interposed therebetween.
In such a joint structure of a structural frame of a wooden building, when a compressive force acts from the second structural frame 101 toward the first structural frame 100 as indicated by an arrow, most of the compressive force is applied to the first structural frame 100. Will concentrate on. Therefore, the first structural housing 100 is required to have sufficient proof strength against such compressive force. However, if the material is not constant, the proof strength of the first structural housing 100 is not stabilized and the strength of the structure is calculated. Will also be difficult. Further, even if the material is constant, applying an excessive compressive force in the direction orthogonal to the fiber direction is a factor that causes deformation such as indentation of the material, which is undesirable from the viewpoint of the influence on the strength of the structure. . In particular, in a multi-story structure in which a plurality of such joint structures are stacked one above the other, this is a problem because the load applied to the first structural housing 100 on the lower floor becomes very large.
An object of the present invention is to provide a connecting structure for a structural frame of a wooden building in which a second structural frame and a third structural frame are connected and fixed in a direction perpendicular to the first structural frame via a bonding bracket. An object of the present invention is to provide a joining structure for a structural frame of a wooden building that prevents an excessive compressive force from being applied to the first structural frame.

In order to achieve the above object, as means 1, metal joint metal fittings are respectively fixed to the upper and lower surfaces of the first structural housing, and the second structural housing and the third structure are vertically arranged through the joint hardware. In the joining structure of a structural frame of a wooden building in which the frame is connected and fixed, one or a plurality of rod-shaped bodies having male screw portions at both ends are embedded in the first structural frame in an immovable state. In FIG. 1, the male screw portions are respectively protruded from the upper and lower surfaces of the first structural housing, the first female screw members are screwed to the male screw portions, and along the axial direction of the male screw portions. The first female screw member is brought into close contact with the first structural housing by being moved, and the connecting portion of the joint fitting is arranged in contact with the outer surface position of each first female screw member, and the arrangement state Projecting outward from the through hole of the connecting part A second female screw member is screwed into the screw portion, the second female screw member is moved along the axial direction of the male screw portion, and the connecting portion of the joint fitting is moved to the first female screw. The joining bracket is fixed by tightening between the members.
With such a configuration, the downward compressive force from the joint fitting in the upper second structural housing is transmitted from the upper first female screw member to the rod-like body, and further from the rod-like body to the lower side. Since it is transmitted to the joint fitting in the lower third structural housing via the first female screw member, an excessive compressive force is not applied to the first structural housing, and the first structural housing is There is no risk of deformation such as indentation.

"Structural frame" here is the part that corresponds to the framework (members that make up the frame) when building a wooden building, including foundations, walls, columns, horizontal members (beams, girders, etc.), foundations, purlins And so on. In addition, it is also possible to use laminated wood, for example, an orthogonal laminated board called CLT (Cross Laminated Timber). The second structural enclosure is a third structural enclosure when the first structural enclosure of the next higher level is used as a reference.
The “rod-like body” embedded in the first structural housing may be fixed in, for example, a through-hole formed in the first structural housing. It is good to be comprised from the external thread body which can be made to do, and especially a lag screw bolt is good.
The first female screw member is an annular body having a female screw portion that is screwed into the male screw portion of the rod-shaped body, and any shape can be used as long as the connecting portion of the joint fitting can be brought into contact with the outer surface.
Further, the “joining bracket” may be configured such that one joining bracket is connected and fixed to one rod-shaped body, or one joining bracket may be connected and fixed to a plurality of rod-shaped bodies.
Further, as means 2, the connecting portion of the joining metal fitting is not in contact with the first structural housing.
This is basically a structure in which the connecting portion of the joint fitting abuts on the first female screw member. Therefore, if the first female screw member is disposed on the outer surface of the first structural housing, such a configuration is obtained. It is a claim to confirm that. In addition, when the first female screw member is embedded in the first structural housing by digging into the first structural housing and a certain amount of the first female screw member is embedded in the first structural housing, there may be a case where the joining bracket contacts the first structural housing. Means 1 are not excluded.
In addition, the term “not in contact” means that the first structural housing is thinned over time even if all or a portion of the initial contact is in contact, and the connecting portion of the joint fitting contacts the first structural housing. It includes cases that disappear.

Further, as the means 3, the first female screw member is a plate-like body in which a female screw surface is formed on the inner peripheral surface of the central through hole.
This claims a specific example of the form of the first female screw member. Thus, stability of the joining metal fitting contact | abutted by comprising flatly improves. The plate-like body is preferably a disc.
Further, as the means 4, the first female screw member is formed such that the side facing the first structural housing is thicker toward the through hole.
As a result, it is possible to reduce the weight, and at the same time, it is possible to improve the bending stress near the through hole where the compressive force becomes the largest. Further, in this case, from the viewpoint of the stability of the joining metal to be brought into contact, it is possible to change the side facing the first structural housing into a tapered shape on the side where the connecting part of the joining metal is brought into contact. Good.

Further, as means 5, metal joint fittings are respectively fixed to the upper and lower surfaces of the first structural housing, and the second structural housing and the third structural housing are connected and fixed in the vertical direction via the joint hardware. In the joined structure of the structural frame of the wooden building, the one or more rod-shaped bodies are immovably embedded inside the first structural frame, and the rod-shaped body is embedded in the first structural frame in the embedded state. Each of the protruding portions of the rod-shaped body is fixed so as not to contact the first structural housing.
Thus, when the upper and lower joining brackets are connected to the rod-shaped body without being brought into contact with the first structural housing, the downward compression force is applied from the joining hardware in the upper second structural housing to the first structure. Since it is transmitted to the rod-shaped body in the housing and further transmitted from the rod-shaped body to the joining metal fitting in the lower third structural housing, an excessive compressive force is not applied to the first structural housing. There is no risk of deformation such as indentation in the structural housing.
Further, as means 6, when the second structural housing and the third structural housing are connected and fixed via the joint metal fitting, the second structural housing is prevented from contacting the first structural housing. did.
This prevents the compressive force from being transmitted from the second structural housing to the first structural housing. Here, in order not to transmit the load from above and the first structural housing, the second structural housing is configured not to contact the first structural housing. However, the third structural housing is brought into contact with the first structural housing. It is also possible to avoid it.

Further, as the means 7, the rod-like body is embedded so that the external thread surface of the rod is screwed with the internal thread surface of the inner periphery of the through hole formed in the first structural housing. I tried to be.
This is a claim for a specific example of the shape of the rod-shaped body, and is held inside the first structural housing by the male threaded surface of the male threaded body and the female threaded surface on the inner periphery of the through hole (that is, the guide hole). Thus, the rod-shaped body can be easily constructed, and is firmly held inside the first structural housing.
Further, as the means 8, the rod-shaped body is a lag screw bolt, and is embedded so as to bite the lag screw portion into the inner wall of the guide hole formed in the first structural housing.
This claims a specific example of the form of a rod-shaped body that is a male screw body, and thereby the rod-shaped body is more firmly held inside the first structural housing.

Further, as the means 9, the joint fitting has an insertion plate that extends in a direction parallel to the axial direction of the rod-like body in a fixed state and is inserted into the second structural body side or the third structural body side. I was doing it.
Such an insertion plate is inserted into the second structural housing or the third structural housing, and is fixed to the second structural housing or the third structural housing by a fixing pin, thereby pulling force (pulling force). The compression force is transmitted in the vertical direction. The insertion plate may be provided with a plurality of insertion plates in one joint fitting, or a single insertion plate may be provided for each of the plurality of joint fittings.
Further, as the means 10, the second structural housing and the third structural housing are orthogonal assembly plates, and the insertion plate is arranged in the plane direction along the plate layer constituting the orthogonal assembly plates. I did it.
In other words, when the second structural housing and the third structural housing are orthogonal assembly plates, the insertion plate is extended along the plate layers constituting the orthogonal assembly plates so as not to cut across the orthogonal assembly plates. ing. This prevents the strength of the orthogonal assembly plate from being lowered.
Further, as means 11, the first structural housing is an orthogonal assembly plate, and the rod-shaped body has an axial direction perpendicular to a direction along the plate layer constituting the orthogonal assembly plate. I was buried.
That is, when the first structural frame is an orthogonal assembly plate, the rod-shaped body is orthogonal to the direction along the plate layer constituting the orthogonal assembly plate (so as to cross the strong axis layer and the weak axis layer). Be placed. This means that in the structure of the present invention, the first structural housing is arranged in a lying state.
Further, the second structural housing arranged on the upper surface of the first structural housing using the joining structure of the structural housing of the wooden building of any one of the means 1 to 11 is one layer higher than the hierarchy. A wooden building that is stacked and arranged so as to be the third structural housing disposed on the lower surface of the first structural housing is constructed.
As a result, when a multi-story wooden building is constructed, a large load in the compression direction is not applied particularly to the first structural frame of the lower floor, so that deformation such as indentation of the material does not occur and the multi-story wooden building Construction of things is possible.

  According to the present invention, an excessive compressive force is not applied to the first structural housing, and there is no possibility that deformation such as indentation occurs in the first structural housing.

The partially cutaway perspective view of the wooden building using the joining structure of the structural frame of the wooden building of the embodiment of the present invention. The perspective view of the joining metal fitting used in the joining structure of the structural frame of the wooden building of embodiment. It is a lag screw bolt used in the joining structure of the structural frame of the wooden building of an embodiment, (a) is a front view, (b) is a longitudinal sectional view, and (c) is a side view. BRIEF DESCRIPTION OF THE DRAWINGS It is a washer with a screw | thread used in the joining structure of the structural frame of the wooden building of embodiment, (a) is a perspective view, (b) is a fragmentary sectional view. Sectional drawing of the floor panel of the joining position in the joining structure of the structural frame of the wooden building of embodiment. Sectional drawing of the state which embed | buried the lag screw bolt in the floor panel of FIG. FIG. 7 is a partially omitted cross-sectional view of a state in which a threaded washer is screwed into the lag screw bolt in the state of FIG. Explanatory drawing which connects and fixes a joining metal fitting to the screw washer of the state of FIG. (A) is explanatory drawing explaining the state in the middle of connecting a wall panel to the lower joining metal fitting connected and fixed to the floor panel, (b) is a wall panel to the lower joining metal fitting fixed to the floor panel. Explanatory drawing explaining the state fixed with a drift pin after connecting. Explanatory drawing explaining the joining state of the floor panel and wall panel of the part enclosed by the circle | round | yen of FIG. The perspective view of the joining metal fitting used by other embodiment. Sectional drawing of the state which joined and fixed the joining metal fitting to the floor panel via the lag screw bolt in the joining structure of the structural frame of the conventional wooden building.

Hereinafter, the joining structure of the structural frame of the wooden building which is one embodiment of this invention is demonstrated based on drawing.
FIG. 1 is a wooden building 1 constructed using the joint structure of the present invention. Actually, the exterior material and the interior material are arranged in the frame state of the skeleton. This wooden building 1 is constructed by combining a floor panel 2 as a first structural frame, a second structural frame, and a wall panel 3 as a third structural frame. A girder panel 4 is disposed near the upper portion between adjacent wall panels 3. In this embodiment, the floor panel 2 uses a rectangular parallelepiped seven-layer CLT panel having a length of 3000 mm, a width of 1000 mm, and a thickness of 210 mm as appropriate. The wall panel 3 uses a CLT panel having a rectangular parallelepiped five-layer structure which is a standard having a length of 3000 mm, a width of 1000 mm, and a thickness of 150 mm. The floor panel 2 is arranged so that the length and width directions are horizontal (that is, the thickness direction is vertical), and is sandwiched in the vertical direction by the wall panel 3 whose length and width directions are vertical. ing. In the wooden building 1, the floor panel 2 and the wall panel 3 are joined in order from the lower floor by the joining structure of the present invention. In the wooden building 1, the joint structure of the present invention is applied to the joint portions of all the floor panels 2 and the wall panels 3, but in the following, a specific joining method at a position surrounded by a circle P in FIG. 1 as an example. The junction structure will be described.

First, main members (metal fittings) used for joining the wall panel 3 to the floor panel 2 will be described.
FIG. 2 shows a joint fitting 5 used for joining the floor panel 2 and the wall panel 3. The joining metal fitting 5 is a basic skeleton having a front T-shape by a base plate 6 serving as a connecting portion having a square shape with a side of 120 mm and a substantially rectangular insertion plate 7 extending upward at a central position in the left-right direction on the upper surface of the base plate 6. Is configured. The insertion plate 7 has the same width as the base plate 6 and is about 2.5 times as long (300 mm). The insertion plate 7 is fixed to the base plate 6 by welding. Near the upper end of the insertion plate 7, pin holes 8 communicating in the front-rear direction are formed at two places in the left-right direction. An arch-shaped cutout portion 9 communicating in the front-rear direction is formed at a central position facing the connection position of the insertion plate 7 with the base plate 6. A through hole 10 communicating with the front and back is formed at the center position of the base plate 6, that is, at a position intersecting the notch 9. The joining metal fitting 5 is installed on the upper surface of the floor panel 2 in the state of FIG. 2, and is installed on the lower surface of the floor panel 2 by turning upside down.
FIGS. 3A to 3C are lag screw bolts 11 used for joining the floor panel 2 and the wall panel 3. The lag screw bolt 11 includes a lag screw portion 12 occupying about 70% of the entire length, a nut portion 13 formed adjacent to one side of the lag screw portion 12 in the axial direction, and bolt portions 14 formed at both ends in the axial direction. It consists of and. The lag screw bolt 11 is embedded in the floor panel 2.
4A and 4B show a screw washer 15. FIG. The threaded washer 15 is formed into a disk shape (precisely, a combination shape of a truncated cone having a small height and a disk), and a through hole 16 is formed at the center thereof. A female screw portion 17 is screwed on the inner peripheral surface of the through hole 16. The threaded washer 15 is provided with a pair of circular small through holes 18 at positions opposed to each other by 180 degrees with the through hole 6 interposed therebetween. The small through hole 18 serves as an engaging portion when the screw washer 15 is rotated by a jig (not shown). The surface 15a of the threaded washer 15 has a flat surface, and the back surface 15b is a truncated cone-shaped slope portion, so that it is thicker toward the through-hole 16 (that is, radially downward from the center). On the slope). The outermost peripheral portion of the threaded washer 15 has a width of several millimeters (5 mm in the present embodiment) and a headband portion 19 that surrounds the outer periphery in a perfect circle shape.

Next, the process of fixing the joining metal fitting 5 to the wall panel 3 joining scheduled position of the floor panel 2 will be described.
As a premise, a guide hole 21 and counterboring holes 22 and 23 are formed at positions where the wall panel 3 of the floor panel 2 is joined as shown in FIG. The guide hole 21 is formed to have an inner diameter slightly smaller than the valley diameter of the lag screw portion 12 of the lag screw bolt 11 in the thickness direction perpendicular to the front and rear surfaces 2a and 2b of the floor panel 2.
The counterbore holes 22 and 23 are configured to have slopes that descend radially toward the center corresponding to the slope shape of the back surface 15b of the threaded washer 15. The upper pit hole 22 is deeper in the center than the lower pit hole 23 and is cylindrically drilled. When the lag screw bolt 11 is embedded, the nut portion 13 is surrounded and screwed. A storage area for a jig (for example, an impact wrench) (not shown) is secured.
As shown in FIG. 6, the operator first holds the nut portion 13 with a jig (not shown) as shown in FIG. 6, and the lag screw along the guide hole 21 from above the floor panel 2. The portion 12 is embedded so as to bite into the inner wall surface of the guide hole 21. Embedding is completed with the nut portion 13 in contact with the bottom of the upper counterbore hole 22. In this state, the side closer to the tip of the bolt portion 14 protrudes from the upper and lower surfaces of the floor panel 2.
Next, as shown in FIG. 7, the operator screws the screw washers 15 into the upper and lower bolt portions 14 and moves them in the direction of the floor panel 2 along the axial direction of the bolt portions 14. Then, the threaded washer 15 is rotated in the tightening direction by a jig (not shown) so that the back surface 15b of the threaded washer 15 is tightened so as to be in close contact with the upper and lower pockets 22 and 23, respectively. In this close contact state, the upper threaded washer 15 advances just to the boundary position between the lag screw bolt 11 and the bolt portion 14. Only the headband portion 19 of the threaded washer 15 protrudes outward from the outer surface (front and rear surfaces 2a, 2b) of the floor panel 2 with the threaded washer 15 fixed. That is, a part of the outer side of the threaded washer 15 partially protrudes from the outer surface of the floor panel 2.

  Next, as shown in FIG. 8, the operator exposes the base plate 6 of the joint fitting 5 from the front and back sides of the floor panel 2 on the surface 15 a of the threaded washer 15 so that the bolt portion 14 is exposed from the through hole 10. Placed on. Since both the front surface 15a and the back surface of the base plate 6 are flat, they are in close contact with each other. Then, a known nut 25 is screwed into the upper and lower bolt parts 14 and moved in the direction of the base plate 6 along the axial direction of the bolt parts 14. Then, the nut 25 is rotated in the tightening direction by a wrench (not shown) to firmly tighten and fix the base plate 6 between the nut 25 and the screw washer 15. In this state, the fixing work of the joining metal fitting 5 to the floor panel 2 is completed. In the present embodiment, the lag screw bolts 11 are buried in two places on the floor panel 2 with a space therebetween, and the joint fitting 5 is connected and fixed to the front and back surfaces at each position. This interval corresponds to the interval between the two slits 28 formed in the wall panel 3.

In constructing the wooden building 1, in order to build sequentially from the lower floor, a method of joining the lower wall panel 3 to the floor panel 2 first is adopted (of course, the wall panel 3 is simultaneously turned into the floor panel 2 from above and below). It may be a method of approaching.) In this state, as shown in FIG. 9A, the lower wall panel 3 is first brought close to the insertion plate 7 and the insertion plate 7 of the fitting 5 is inserted into the slit 28 formed in the end 3 a of the wall panel 3. The pin hole 8 of the insertion plate 7 is collated with the pin hole 29 formed in the wall panel 3 in a state where the end portion 3 a of the wall panel 3 is in contact with the joint fitting 5. Then, as shown in FIG. 9B, the wall panel 3 is fixed by driving a known drift pin 30 into the collated pin holes 8 and 29. Thereafter, the wall panel 3 is joined to the floor panel 2 from the upper side in accordance with FIGS. 9A and 9B when the construction of the same floor and the lower floor as the floor panel 2 is almost completed.
When the wall panel 3 is joined to the front and back surfaces of the floor panel 2 as described above, the base plate 6 of the joint fitting 5 does not contact the floor panel 2 and is placed on the base plate 6 as shown in FIG. The wall panel 3 also does not contact the floor panel 2. In FIG. 10, the gap is drawn slightly wider to emphasize that the gap between the wall panel 3 and the floor panel 2 is open.

With this configuration, the following effects are achieved in the above embodiment.
(1) The compressive force applied downward from the upper wall panel 3 via the joint fitting 5 is transmitted from the upper threaded washer 15 to the lag screw bolt 11 and further from the lower threaded washer 15 to the lower side. It is transmitted to the joint fitting 5. Moreover, the joining metal fitting 5 is supported by the screw washer 15 in a slightly floating state without contacting the floor panel 2. For this reason, since the compression force is not transmitted to the floor panel 2 and is bypassed, the floor panel 2 is not sunk and deformed even if an excessive compression force is generated.
(2) Since the threaded washer 15 is thicker near the center, the bending stress near the through hole where the compressive force transmitted from the joint fitting 5 becomes the largest can be improved. On the other hand, since the compressive force is relatively small at a position away from the center, the weight is reduced by making it relatively thinner than near the center.
(3) Since one side of the base plate 6 of the fitting 5 is shorter than the thickness of the wall panel 3, the base plate 6 does not protrude outward from the wall panel 3 in the mounted state.

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, the joint structure at the position surrounded by the circle P of the wooden building 1 in FIG. 1 has been described as an example, but it can be applied to other positions or wooden buildings other than the wooden building 1. It is.
-The above is an example about the size used as the standard of the floor panel 2 and the wall panel 3. FIG.
In the above embodiment, when joining the wall panel 3 to the floor panel 2, the two joining fittings 5 are arranged with a space therebetween. That is, two lag screw bolts 11 are arranged along the joining position of the wall panel 3. However, the number of lag screw bolts 11 (joint fittings 5) arranged along the wall panel 3 according to the width of the wall panel 3 can be appropriately changed (1 or 3 or more).
In the above embodiment, when joining the wall panel 3 to the floor panel 2, the two joining fittings 5 are arranged with a space therebetween. However, as shown in FIG. 11, the joining bracket 31 may be configured so that the wall panel 3 is joined by only one joining bracket 31. The joint fitting 31 has an external shape that is obtained by joining the two joint fittings 5 of the above embodiment, and the insertion plate 32 is formed with two arch-shaped notches 33. Through holes 35 are formed in the base plate 34 so as to face the positions of the notches 33 in order to allow the lag screw bolts 11 to be inserted therethrough. The insertion plate 32 is formed with a pin hole 36 into which a drift pin is fitted when fixed to the wall panel 3. In the wall panel 3 of the present embodiment, a plurality of lag screw bolts 11 are arranged, and the joining metal fitting 5 is connected to each lag screw bolt 11, but by using the joining metal fitting 31 having such a configuration. Only one is required for the plurality of lag screw bolts 11, and the wall panel 3 can be joined by connecting and using the joining bracket 31 to the two lag screw bolts 11.
-Although the CLT panel was used for the said floor panel 2 and the wall panel 3, you may make it use the laminated material other than a CLT panel, or a muck material.
In the above description, the floor panel 2 is used as the first structural housing, but the present invention may be applied to a ceiling panel.
In the above description, the lag screw bolt 11 is used as the rod-shaped body, but the lag screw bolt 11 is not limited as long as it can be embedded in the first structural housing so as not to move in the vertical direction. For example, you may make it fix a rod-shaped body using a bolt member or using an epoxy-type adhesive agent.
The slits 28 formed in the wall panel 3 are appropriately changed depending on the shape and position of the insertion plate on the joint fitting side.
In the above description, the screw washer 15 is a combination of a truncated cone shape and a disk having a small height, but the front and back surfaces 2a and 2b are parallel to the screw washer 15 without making the back surface 15b inclined as described above. It may be a disc shape.
In the above, only the headband portion 19 of the threaded washer 15 is configured to protrude outward from the outer surface (front and back surfaces 2a, 2b) of the floor panel 2. This protrusion amount can be changed. Further, the threaded washer 15 is initially configured not to protrude from the outer surface of the floor panel 2, and then the threaded washer 15 is floored in anticipation that the floor panel 2 as the first structural frame can be worn over time. You may make it comprise so that it may protrude outward from the outer surface of the panel 2. FIG.
Others The present invention can be freely modified and implemented without departing from the spirit of the present invention.

  2 ... Floor panel, 3 ... Wall panel as second and third structural housings, 5 ... Joining metal fitting, 11 ... Lug screw bolt as rod-like body, 14 ... Male screw part, 15 ... As a first female screw member A screw washer, 25 ... a nut as a second female screw member.

Claims (12)

A metal building metal fixture is fixed to the upper and lower surfaces of the first structural housing, respectively, and the second structural housing and the third structural housing are connected and fixed in the vertical direction via the joint hardware. In the joint structure of the structural frame,
One or a plurality of rod-like bodies having male screw portions at both ends are embedded in the first structural housing in an immovable manner, and the male screw portions protrude from the upper and lower surfaces of the first structural housing in the embedded state. ,
A first female screw member is screwed to each male screw portion and moved along the axial direction of the male screw portion, thereby closely contacting the first female screw member to the first structural housing. Let
The connecting portion of the joint fitting is disposed in contact with the outer surface position of each first female screw member, and in a disposition state, the second portion with respect to the male screw portion protruding outward from the through hole of the connecting portion. By screwing the female screw member, moving the second female screw member along the axial direction of the male screw portion, and tightening the connecting portion of the joint fitting with the first female screw member A joining structure of a structural frame of a wooden building, wherein the joining metal fitting is fixed.   The connection structure of the structural frame of the wooden building according to claim 1, wherein the connecting portion of the bonding bracket is not in contact with the first structural frame.   The said first female screw member is a plate-like body in which a female screw surface is formed on the inner peripheral surface of a central through hole. Construction.   The said 1st internal thread member is thickly formed so that it may be near the said through-hole, The joining structure of the structural frame of the wooden building of Claim 3 characterized by the above-mentioned. A metal building metal fixture is fixed to the upper and lower surfaces of the first structural housing, respectively, and the second structural housing and the third structural housing are connected and fixed in the vertical direction via the joint hardware. In the joint structure of the structural frame,
While embedding one or more rod-shaped bodies in the first structure housing in an immovable manner, the rod-shaped bodies have portions protruding from the upper and lower surfaces of the first structure housing, respectively.
A joining structure of a structural housing of a wooden building, wherein the joint fitting is fixed to the projecting portion of the rod-shaped body so as not to contact the first structural housing.   6. The second structural housing does not contact the first structural housing when the second structural housing and the third structural housing are connected and fixed via the joint fitting. The joint structure of the structural frame of the wooden building described in 1.   The rod-shaped body has a male screw surface on the outer periphery embedded in a threaded relationship with a female screw surface on the inner periphery of a through hole formed in the first structural housing. The joint structure of the structural frame of the wooden building in any one of Claims 1-5.   The rod-shaped body is a lag screw bolt, and is embedded so as to bite a lag screw portion into an inner wall of a guide hole formed in the first structural housing. Joint structure of structural frame of wooden building.   The joint fitting has an insertion plate that extends in a direction parallel to the axial direction of the rod-shaped body in a fixed state and is inserted into the second structural body or the third structural body. The joint structure of the structural frame of the wooden building in any one of Claims 1-8.   The said 2nd structure housing and 3rd structure housing are orthogonal assembly boards, The surface direction of the said insertion plate is arrange | positioned along the board | plate layer which comprises the said orthogonal assembly board. The joint structure of the structural frame of the wooden building in any one of 1-9.   The first structural housing is an orthogonal assembly plate, and the rod-shaped body is embedded so that a direction orthogonal to a direction along a plate layer constituting the orthogonal assembly plate is an axial direction. The junction structure of the structural frame of the wooden building in any one of Claims 1-10.   The second structure case arranged on the upper surface of the first structure case using the joint structure of the structure case of the wooden building according to any one of claims 1 to 11, wherein the second structure case is one layer higher than the level. A wooden building, characterized in that it is arranged in a stacked manner so as to be the third structural housing arranged on the lower surface of the first structural housing.

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