JP6682400B2 - Structural structure of wooden building Joint structure of frame - Google Patents

Description

  The present invention is a wooden construction in which metal fittings are fixed to the upper and lower surfaces of the first structural body, respectively, and the second structural body and the third structural body are connected and fixed in the vertical direction through the metallic fittings. The present invention relates to a joint structure of a structural body.

2. Description of the Related Art Conventionally, joining metal fittings have been arranged on a joining surface of a structural body in order to connect and fix adjacent structural bodies of a wooden building.
Patent Documents 1 and 2 are shown as documents disclosing such a joint structure. Patent Document 1 discloses a joining structure in which a T-shaped metal fitting 13 as a fitting is arranged on a beam 11 as a structural skeleton so as to connect a tube column 12 as a structural skeleton. Further, for example, Patent Document 2 discloses a joint structure in which a column base joint metal fitting is arranged as a joint metal fitting to connect a column 22 which is also a structural body on a base 15 which is a structural body. .

JP-A-2000-64426 JP, 2013-167133, A

The joining fittings of Patent Documents 1 and 2 can join the structural frames with a joining strength that is different from that of the structure without using the joining fittings. As such a joining structure, there is a case in which metallic joining fittings are fixed to the upper and lower surfaces of the first structural body, and the second structural body and the third structural body are connected and fixed via the joining fittings. FIG. 12 shows such a joint structure. FIG. 12 shows that the second structural body 101 and the third structural body 102 (eg, wall panel or pillar) are joined to the first structural body 100 (eg, floor panel or beam) in a T-shaped outer shape. It is a joint structure of a structural body of a wooden building joined by metal fittings 103. The first structural body 100 is formed with through holes 104 that communicate with each other in the vertical direction. A bolt 105 is inserted through the through hole 104, and the upper and lower joint fittings 103 are arranged with respect to the first structural body 100 so as to intersect with the bolt 105, and the nut 105 screwed to the bolt 105 allows the first structure to be formed. The body 100 is clamped and fixed with the body 100 interposed therebetween.
In the joint structure of the structural skeletons of such a wooden building, when a compressive force acts from the second structural skeleton 101 toward the first structural skeleton 100 as indicated by an arrow, most of the compressive force is applied to the first structural skeleton 100. Will be concentrated on. Therefore, the first structural skeleton 100 is required to have sufficient proof stress against such compressive force, but if the material is not constant, the proof stress of the first structural skeleton 100 is not stable and the strength calculation of the structural body is performed. Will be difficult. In addition, even if the material is constant, applying an excessive compressive force in the direction orthogonal to the fiber direction causes deformation such as indentation of the material, which is not preferable 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 joining structures are vertically stacked, this is a problem because the load applied to the first structural frame 100 on the lower floor becomes extremely large.
An object of the present invention is to join a structural frame of a wooden building in a structure in which a second structural body and a third structural frame are connected and fixed in a direction perpendicular to the first structural body via a joint fitting. A first structural body is provided with a joint structure for a structural body of a wooden building that prevents an excessive compressive force from being applied to the first structural body.

In order to achieve the above-mentioned object, as a means 1, a metal joint fitting is fixed to the upper and lower surfaces of the first structure body, respectively, and a second structure body and a third structure are vertically arranged through the joint fitting. In a joint structure of structural skeletons of a wooden building in which the skeletons are connected and fixed, one or a plurality of rod-shaped bodies having male screw parts at both ends are immovably embedded in the first structural skeleton, and are embedded. In, the male screw portions are respectively projected from the upper and lower surfaces of the first structural body, and the first female screw members are respectively screwed into 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 body by moving the first female screw member, and the connecting portions of the joining metal fittings are placed in contact with the outer surface positions of the first female screw members, respectively. The above-mentioned projecting outward from the through hole of the connecting portion. A second female screw member is screwed onto the screw portion, and the second female screw member is moved along the axial direction of the male screw portion to connect the connecting portion of the joining fitting to the first female screw. The joint fitting was fixed by tightening between the member and the member.
With such a configuration, the downward compressive force from the joining fitting in the upper second structural body is transmitted to the rod-shaped body from the upper first female screw member, and further from the rod-shaped body to the lower side. Since it is transmitted via the first female screw member to the joining metal fitting in the lower third structural body, an excessive compressive force is not applied to the first structural body. There is no risk of deformation such as indentation.

Here, the "structural frame" is the part that corresponds to the frame (members that make up the frame) when constructing a wooden building, and includes foundations, walls, columns, horizontal members (beams, girders, etc.), foundations, and purlins. And so on. Further, it may be a muku tree or a laminated wood, for example, an orthogonal laminated board called CLT (Cross Laminated Timber). The second structural skeleton becomes the third structural skeleton when the first structural skeleton of the upper layer is used as a reference.
The “rod-shaped body” embedded inside the first structural body may be fixed, for example, in the through hole formed in the first structural body, but is screwed into the guide hole by screwing it into the guide hole for ease of construction. It is preferable that the lag screw bolt is used, and a lag screw bolt is particularly preferable.
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 may have any shape as long as the connecting portion of the joint fitting can be brought into contact with the outer surface.
In addition, as for the “joint metal fitting”, one joint metal fitting may be connected and fixed to one rod-shaped body, or one joint metal fitting may be connected and fixed to a plurality of rod-shaped bodies.
In addition, as the means 2, the connecting portion of the joining metal fitting is not in contact with the first structural body.
Since this is basically a structure in which the connecting portion of the joint fitting contacts the first female screw member, if the first female screw member is arranged on the outer surface of the first structural body, such a structure is obtained. It is a confirmation claim. In addition, when the first female screw member is dug into the first structural body and a certain amount of the first female screw member is embedded inside the first structural body, there is a possibility that the joining metal fitting may come into contact with the first structural body. Means 1 is not excluded.
In addition, “not in contact” here means that even if all or a part of them are initially in contact with each other, the first structural body becomes thin due to long-term use, and the connecting portion of the joint fitting comes into contact with the first structural body. It also includes the case of disappearance.

Further, as the means 3, the first female screw member is a plate-like body having a female screw surface 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. Such a flat structure improves the stability of the joining metal fitting to be abutted. The plate-shaped body is preferably a disc.
Further, as the means 4, the first female screw member is formed so that the side facing the first structural body is thicker toward the through hole.
As a result, the weight can be reduced, and at the same time, the bending stress near the through hole that maximizes the compression force can be improved. In addition, in this case, it is preferable that the side of the joining metal fitting that comes into contact with the connecting portion is a flat surface, and that the side facing the first structural body is changed into a taper shape in terms of stability of the joining metal fitting. Good.

Further, as the means 5, metal joint fittings are fixed to the upper and lower surfaces of the first structural body, respectively, and the second structural body and the third structural body are connected and fixed in the vertical direction via the joint fittings. In the joint structure of the structural skeleton of the wooden building, the one or more rod-shaped bodies are immovably embedded in the first structural skeleton, and the rod-shaped bodies are embedded in the first structural skeleton in the embedded state. Each of the upper and lower surfaces has a protruding portion, and the joining metal fitting is fixed to the protruding portion of the rod-shaped body so as not to come into contact with the first structural body.
Thus, when the upper and lower joining fittings are connected to the rod-like body without coming into contact with the first structural body, the downward compressive force is applied from the joining fittings in the upper second structural body to the first structural body. Since it is transmitted to the rod-shaped body in the body and is further transmitted from the rod-shaped body to the joining metal fitting in the lower third structure body, an excessive compressive force is not applied to the first structure body, There is no risk of deformation such as slipping into the structural body.
Further, as the means 6, when the second structural body and the third structural body are connected and fixed via the joining metal fitting, the second structural body does not come into contact with the first structural body. did.
This prevents the compressive force from being transmitted from the second structural body to the first structural body. Here, in order to prevent the load from above from being transmitted to the first structural body, the second structural body is configured so as not to contact the first structural body, but the third structural body contacts the first structural body. It is good not to do it.

Further, as the means 7, the rod-shaped body is embedded such that the male screw surface on the outer periphery thereof has a screwing relationship with the female screw surface on the inner periphery of the through hole formed in the first structural body. I was supposed to.
This is a specific example of the shape of a rod-shaped body, and is held inside the first structural body by the male screw surface of the male screw body and the female screw surface of the inner periphery of the through hole (that is, the guide hole). By doing so, the rod-shaped body can be easily installed and firmly held inside the first structural body.
Further, as the means 8, the rod-shaped body is a lag screw bolt, and the rod-shaped body is embedded so as to bite the lag screw portion into the inner wall of the guide hole formed in the first structural body.
This claims a specific example of the form of a rod-shaped body which is a male screw body, whereby the rod-shaped body is more firmly held inside the first structural body.

In addition, as the means 9, the joint fitting has an insertion plate that extends in a direction parallel to the axial direction of the rod-shaped body in the fixed state and is inserted into the second structural body or the third structural body side. I was doing it.
Such an insertion plate is inserted into the side of the second structural body or the third structural body and is fixed to the second structural body or the third structural body by the fixing pin so that a pulling force (pulling force) is obtained. And the compressive force is transmitted in the vertical direction. As for the insertion plate, a plurality of insertion plates may be provided in one joint fitting, or one insertion plate may be provided for each of the plurality of joint fittings.
Further, as the means 10, the second structural body and the third structural body are orthogonal laminated plates, and the insertion plate is arranged in the surface direction along the plate layers constituting the orthogonal laminated plates. I did it.
That is, when the second structural body and the third structural body are orthogonal laminated plates, the insertion plate should be extended along the plate layers constituting the orthogonal laminated plates so as not to cut across the orthogonal laminated plates. ing. This prevents the strength of the orthogonal laminated plate from decreasing.
Further, as the means 11, the first structural body is an orthogonal laminated plate, and the rod-shaped body is such that a direction orthogonal to a direction along a plate layer forming the orthogonal laminated plate is an axial direction. It was made to be buried.
That is, in the case where the first structural body is the orthogonal laminated plate, the rod-shaped body is in a direction orthogonal to the direction along the plate layers constituting the orthogonal laminated plate (so as to cross the strong axis layer and the weak axis layer). Will be placed. This means that in the structure of the present invention, the first structural body is arranged in a lying state.
In addition, the second structural skeleton arranged on the upper surface of the first structural skeleton by using the joining structure of the structural skeletons of the wooden building according to any one of Means 1 to 11 is one layer higher than the layer. A wooden building is arranged so as to be the third structural body arranged on the lower surface of the first structural body.
As a result, when a multi-storey wooden building is constructed, a large load in the compression direction is not particularly applied to the first structural body of the lower floor, so that deformation such as intrusion of timber does not occur, and the multi-story wooden construction It is possible to build things.

  According to the present invention, an excessive compressive force is not applied to the first structural body, and the first structural body is not likely to be deformed such as slipping in.

1 is a partially cutaway perspective view of a wooden building using a joint structure of a structural body of a wooden building according to an 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 construction of the embodiment. It is a lag screw bolt used in the joint structure of the structural body of the wooden structure of embodiment, (a) is a front view, (b) is a longitudinal cross-sectional view, (c) is a side view. It is a washer with a screw used in the joining structure of the structural body of the wooden structure of embodiment, (a) is a perspective view, (b) is a partial sectional view. Sectional drawing of the floor panel of the joining position in the joining structure of the structural body of the wooden structure of embodiment. Sectional drawing of the state which embedded 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 washer with a screw is screwed into the lag screw bolt in the state of FIG. 6 and is housed in a digging hole of a floor panel. Explanatory drawing which connects and fixes a joining metal fitting to the washer with a screw 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 connected and fixed to the floor panel. Explanatory drawing explaining the state fixed with a drift pin after connecting. Explanatory drawing explaining the joined state of the floor panel and wall panel of the part enclosed by the circle of FIG. The perspective view of the joining metal fitting used in other embodiment. Sectional drawing in 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, a joint structure of a structural body of a wooden building according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a wooden building 1 constructed using the joining structure of the present invention. Actually, the exterior material and the interior material are arranged in the frame structure of this skeleton. This wooden building 1 is constructed by combining a floor panel 2 as a first structural body, and a wall panel 3 as a second structural body and a third structural body. A girder panel 4 is arranged near the upper part between the adjacent wall panels 3. In the present embodiment, the floor panel 2 is a CLT panel having a 7-layered rectangular parallelepiped structure having a length of 3000 mm, a width of 1000 mm, and a thickness of 210 mm, which is cut as needed. As the wall panel 3, a CLT panel having a five-layered rectangular parallelepiped structure having a length of 3000 mm, a width of 1000 mm, and a thickness of 150 mm, which is a standard, is cut and used. The floor panels 2 are arranged so that the length and width directions are horizontal (that is, the thickness direction is vertical), and are sandwiched in the vertical direction by the wall panels 3 whose length and width directions are vertical. ing. In the wooden building 1, the floor panel 2 and the wall panel 3 are sequentially joined from the lower floors by the joining structure of the present invention. In the wooden building 1, the joint structure of the present invention is applied to all the joints between the floor panels 2 and the wall panels 3, but in the following, as an example, a concrete joining method at a position surrounded by a circle P in FIG. And the junction structure shall be explained.

First, main members (metal fittings) used for joining the floor panel 2 and the wall panel 3 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 has a basic skeleton that is T-shaped in the front 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 that extends upward at a center position in the left-right direction on the upper surface of the base plate 6. Are configured. The insertion plate 7 has the same width as the base plate 6 and has a length (300 mm) about 2.5 times. The insertion plate 7 is fixed to the base plate 6 by welding. Pin holes 8 that communicate with the front and back are formed at two locations in the left-right direction near the upper end of the insertion plate 7. An arch-shaped notch 9 communicating in the front-rear direction is formed at the central position of the insertion plate 7 facing the connection position with the base plate 6. A through hole 10 that communicates with the front and back is formed at a central position of the base plate 6, that is, a position that intersects with the notch 9. The joining fitting 5 is installed on the upper surface of the floor panel 2 in the state shown in FIG. 2, and is installed upside down on the lower surface of the floor panel 2.
FIGS. 3A to 3C show a lag screw bolt 11 used for joining the floor panel 2 and the wall panel 3. The lag screw bolt 11 occupies about 70% of the total length, a lug screw portion 12 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 washer 15 with a screw. The washer 15 with a screw is formed in a disk shape (correctly, a combined shape of a truncated cone shape having a small height and a disk), and a through hole 16 is formed in the center thereof. A female screw portion 17 is screwed on the inner peripheral surface of the through hole 16. A pair of small through holes 18 having a circular cross section are provided in the washer 15 with a screw at positions opposite to each other with the through hole 6 interposed therebetween. The small through hole 18 serves as an engaging portion when the washer 15 with a screw is rotated by a jig (not shown). Since the front surface 15a of the washer 15 with a screw is formed into a flat surface, and the back surface 15b is a truncated cone-shaped inclined surface, the wall thickness becomes closer to the through hole 16 (that is, the thickness decreases radially outward from the center). On the slope). The outermost peripheral portion of the screw washer 15 has a width of several millimeters (5 mm in the present embodiment), and a headband portion 19 is formed so as to surround the outer periphery in a perfect circular shape.

Next, a process of fixing the joining metal fitting 5 to the wall panel 3 scheduled to be joined to the floor panel 2 will be described.
As a premise, a guide hole 21 and countersunk holes 22 and 23 are formed at the position where the floor panel 2 is joined to the wall panel 3, as shown in FIG. The guide hole 21 is formed to have an inner diameter slightly smaller than the root diameter of the lag screw portion 12 of the lag screw bolt 11 in the thickness direction perpendicular to the front and back surfaces 2a and 2b of the floor panel 2.
The counterbore holes 22 and 23 are formed into slopes that radiate downward toward the center corresponding to the slope shape of the back surface 15b of the screw washer 15. The upper countersunk hole 22 is recessed into a cylindrical shape deeper in the center than the lower countersunk hole 23. When the lag screw bolt 11 is embedded, the nut part 13 is surrounded and screwed. A storage area for a jig (for example, an impact wrench) (not shown) is secured.
For such a floor panel 2, an operator first holds the nut portion 13 of the lag screw bolt 11 by a jig (not shown) as shown in FIG. 6, and extends 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. The embedding is completed with the nut portion 13 in contact with the bottom of the upper counterbore hole 22. In this state, the bolt panel 14 projects from the upper and lower surfaces of the floor panel 2 toward the tip end side.
Next, as shown in FIG. 7, the worker screws the washer 15 with the screw on the upper and lower bolt portions 14 and moves the bolt portion 14 in the direction of the floor panel 2 along the axial direction. Then, the screw washer 15 is rotated in the tightening direction by a jig (not shown) so that the back surface 15b of the screw washer 15 is tightly fitted into the upper and lower countersunk holes 22 and 23, respectively. In this close contact state, the screw washer 15 on the upper side just advances to the boundary position between the lag screw bolt 11 and the bolt portion 14. With these screw washers 15 fixed, only the headband portion 19 of the screw washers 15 projects outward from the outer surface (front and back surfaces 2a, 2b) of the floor panel 2. In other words, a part of the washer 15 with a screw on the outer side partially projects from the outer surface of the floor panel 2.

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

When constructing the wooden building 1, since it is constructed in order from the lower floors, a construction method of first joining the lower wall panel 3 to the floor panel 2 is adopted (of course, the wall panel 3 is simultaneously attached to the floor panel 2 from above and below). It may be a method of approaching). In this state, as shown in FIG. 9A, the wall panel 3 in the downward direction is first approached, and the insertion plate 7 of the joining fitting 5 is inserted into the slit 28 formed in the end 3a 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 3a of the wall panel 3 is in contact with the joint fitting 5. Then, as shown in FIG. 9B, the well-known drift pin 30 is driven into the collated pin holes 8 and 29 to fix the wall panel 3. After that, when the construction of the same floor as the floor panel 2 and the floor on the lower side are almost completed, the wall panel 3 is joined to the floor panel 2 from the upper side according to FIGS. 9A and 9B.
In this manner, when the wall panels 3 are joined to the front and back surfaces of the floor panel 2, the base plate 6 of the joining fitting 5 does not abut 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, a slightly wider space is drawn to emphasize that the space between the wall panel 3 and the floor panel 2 is open.

With such a configuration, the following effects are achieved in the above-described embodiment.
(1) The compressive force applied downward from the upper side wall panel 3 side through the joint fitting 5 is transmitted from the upper screw washer 15 to the lag screw bolt 11, and further from the lower screw washer 15 to the lower side. It is adapted to be transmitted to the joint fitting 5. The metal fitting 5 is supported by the washer 15 with a screw in a slightly floating state without contacting the floor panel 2. For this reason, since the floor panel 2 is detoured without being transmitted to the floor panel 2, the floor panel 2 will not be bent and deformed even if an excessively large floor force is generated.
(2) Since the washer 15 with a screw is thicker toward the center, it is possible to improve the bending stress near the through hole where the compressive force transmitted from the joint fitting 5 is maximized. On the other hand, since the compression force is relatively small at the position away from the center, the weight is reduced by making the position relatively thinner than the position near the center.
(3) Since one side of the base plate 6 of the joining fitting 5 is shorter than the thickness of the wall panel 3, the base plate 6 does not stick out from the wall panel 3 in the mounted state.

The above-described embodiments are merely described as specific embodiments for illustrating the principle and concept of the present invention. That is, the present invention is not limited to the above embodiment. The present invention can also be embodied in the following modified modes.
In the above embodiment, the joint structure of the wooden building 1 surrounded by the circle P in FIG. 1 has been described as an example, but the present invention can be applied to other positions and wooden buildings other than this wooden building 1. Is.
-Regarding the standard size of the floor panel 2 and the wall panel 3, the above is an example.
In the above-described embodiment, when the wall panel 3 is joined 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 joint position of the wall panel 3. However, it is possible to appropriately change (1 or 3 or more) the number of the lag screw bolts 11 (joint fittings 5) arranged along the wall panel 3 according to the width of the wall panel 3.
In the above-described embodiment, when the wall panel 3 is joined to the floor panel 2, the two joining fittings 5 are arranged with a space therebetween. However, as shown in FIG. 11, the joint fitting 31 may be configured to join the wall panel 3 with only one joint fitting 31. The joint fitting 31 has an outer shape that is formed by joining two joint fittings 5 of the above-described 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 for inserting the lag screw bolts 11. The insertion plate 32 has a pin hole 36 into which a drift pin is fitted when it is 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 fitting 5 is connected to each of the lag screw bolts 11, but by using the joining fitting 31 having such a configuration, Only one suffices for the plurality of lag screw bolts 11, and the wall panel 3 can be joined by using the joining metal fittings 31 connected to the two lag screw bolts 11.
Although the floor panel 2 and the wall panel 3 are CLT panels, laminated lumber other than CLT panels or lumber may be used.
Although the floor panel 2 is used as the first structural body in the above, the present invention may be applied to a ceiling panel.
Although the lag screw bolt 11 is used as the rod-shaped body in the above, the lag screw bolt 11 is not limited as long as it can be embedded inside the first structural body so as not to move in the vertical direction. For example, a rod member may be used or an epoxy adhesive may be used to fix the rod-shaped body.
The slit 28 formed in the wall panel 3 is formed by appropriately changing the shape and position of the insertion plate on the joint fitting side.
The screw washer 15 is a combination of a circular truncated cone shape with a small height and a disk in the above, but as described above, the screw washer 15 is parallel to the front and back surfaces 2a and 2b without forming the back surface 15b into an inclined shape. It may be formed in a disc shape.
-In the above, only the headband 19 of the washer 15 with a screw was configured to project outward from the outer surface (front and back surfaces 2a, 2b) of the floor panel 2. This protrusion amount can be changed. Further, the screw washer 15 is initially constructed so as not to protrude from the outer surface of the floor panel 2, and then the floor washer 2 is used as the first structural frame in anticipation that the material will become thin due to long-term use. The panel 2 may be configured to project outward from the outer surface thereof.
-Others The present invention is free to be modified and implemented in a manner that does not depart from the spirit of the invention.

  2 ... Floor panel, 3 ... Wall panel as second and third structural body, 5 ... Joining metal fitting, 11 ... Lag screw bolt as rod-like body, 14 ... Male screw part, 15 ... As first female screw member Washer with screw, 25 ... Nut as second female screw member.

Claims (11)

A metal building fitting is fixed to the upper and lower surfaces of the first structural body, respectively, and the second structural body and the third structural body are connected and fixed in the vertical direction through the joining metal fitting. In the joint structure of structural frame,
One or a plurality of rod-shaped bodies having male screw portions at both ends are immovably embedded inside the first structural body, and the male screw portions are respectively projected from the upper and lower surfaces of the first structural body in the embedded state. ,
The first female screw member is screwed onto each of the male screw portions, and is moved along the axial direction of the male screw portion, so that the first female screw member is brought into close contact with the first structural body. Let
The connecting portions of the joining metal fittings are arranged in contact with the outer surface positions of the respective first female screw members so as not to come into contact with the first structural body, and are arranged outward from the through holes of the connecting portions in the arranged state. A second female screw member is screwed onto the projecting male screw portion, and the second female screw member is moved along the axial direction of the male screw portion to move the connecting portion of the joining fitting to the first portion. A joint structure for a structural frame of a wooden building, wherein the joint fitting is fixed by being tightened between the female screw member and the female screw member.   The joining structure for a structural frame of a wooden building according to claim 1, wherein the first female screw member is a plate-shaped body having a female screw surface formed on an inner peripheral surface of a central through hole.   The joint structure for a structural frame of a wooden building according to claim 2, wherein the first female screw member is formed thicker toward the through hole. A metal building fitting is fixed to the upper and lower surfaces of the first structural body, respectively, and the second structural body and the third structural body are connected and fixed in the vertical direction through the joining metal fitting. In the joint structure of structural frame,
While embedding one or a plurality of rod-shaped bodies immovably inside the first structural body, the rod-shaped bodies have portions that respectively project from the upper and lower surfaces of the first structural body in the embedded state,
A joint structure for a structural body of a wooden building, wherein the joint fitting is fixed to the protruding portion of the rod-shaped body so as not to come into contact with the first structural body. Claim 4 wherein said second structural framework and said second structural building frame the third structural skeleton upon fixedly connected via the front Symbol joint device is characterized in that it does not contact the first structural framework The joint structure of the structural frame of the wooden building described in.   The male body of the outer periphery of the rod-shaped body is embedded in the female body of the through hole formed in the first structural body in a threaded relationship with the female body. A joint structure of a structural body of a wooden building according to any one of claims 1 to 4.   7. The rod-shaped body is a lag screw bolt, and is embedded so that the lag screw portion bites into the inner wall of the guide hole formed in the first structural body, and is embedded. Structural structure of wooden building Joint structure of frame.   The joining 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 side. The joined structure of the structural frame of the wooden building according to any one of claims 1 to 7. Claim wherein the second structural framework and the third structural skeleton is a quadrature assembled plate, the insertion plate, characterized that the plane direction along the plate layer constituting the orthogonal assembly plate is disposed The joint structure of the structural frame of the wooden building according to 8 .   The first structural body is an orthogonal assembly plate, and the rod-shaped body is embedded so that a direction orthogonal to a direction along a plate layer forming the orthogonal assembly plate is an axial direction. The joined structure of the structural frame of the wooden building according to any one of claims 1 to 9.   The said 2nd structural body arrange | positioned on the upper surface of the said 1st structural body using the joining structure of the structural body of the wooden structure in any one of Claims 1-10 is one above the said hierarchy, A wooden building characterized by being laminated and arranged so as to be the third structural body arranged on the lower surface of the first structural body.

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