JP6990549B2 - Wood structural panels, wood structural panel joint structures, and wall slab buildings - Google Patents

Description

The present invention relates to a wood structure panel constituting a building, a joint structure of the wood structure panel, and a wall slab building in which a plurality of wood structure panels are connected.

When the walls and floors that make up the structure of various buildings are made of wood structural panels, the joints and floors between the wooden structural panels that make up the walls (hereinafter referred to as wall panels) are made up. At the joint between a wooden structural panel (hereinafter referred to as a floor panel) and a wall panel provided on the floor panel, the panels are often joined with bolts or the like.

In order to increase the joint strength between such panels, for example, in Patent Document 1, rod-shaped members are provided along both sides of the wood panel, and in the portion where the wood panels face each other, the rod-shaped member along one of the wood panels is provided. A configuration is disclosed in which a bolt buried and fixed and a bolt buried and fixed in a rod-shaped member along the other wooden panel are connected via a connecting box.
However, in the configuration disclosed in Patent Document 1, a rod-shaped member along the wood panel must be provided according to the number of bolts required to join the wood panels to each other. In order to further increase the joint strength between the wood panels, the number of rod-shaped members and bolts is increased, but this complicates the structure of the joint between the panels.

Further, Patent Document 2 uses a joining member having an L-shaped cross section having a gibber portion fixed on the upper surface of the floor panel and a guide portion extending vertically upward from the gibber portion and along the surface of the wall panel. , A configuration for joining a floor panel and a wall panel is disclosed. In this configuration, the gibber portion and the guide portion are fixed to the floor panel and the wall panel with screw nails or the like, respectively.
In the configuration as disclosed in Patent Document 2, the joint member has a gibber portion fixed to the floor panel with screw nails or the like, and a guide portion fixed to the wall panel with screw nails or the like. It is joined via a joining member having an L-shaped cross section. Therefore, in order to increase the joint strength between the floor panel and the wall panel, it is necessary to strengthen the joint member itself by increasing the plate thickness of the joint member. Strengthening the joint member leads to an increase in the size of the joint member, so there is a limit to effectively increasing the joint strength.

Further, in Patent Document 3, a steel plate is sandwiched between the first wood-based member and the second wood-based member, and the first wood-based member and the second wood-based member and the steel plate are fastened with a high-strength bolt. A configuration for crimping and fixing with a member is disclosed.
In the configuration as disclosed in Patent Document 3, by fastening the first wood-based member and the second wood-based member with the fastening member, the compression strain generated in the first wood-based member and the second wood-based member is constant. By the above, the joint strength between the first wood-based member and the second wood-based member is enhanced. If the fastening force of the first wood-based member and the second wood-based member is increased in order to further increase the joining strength, the compression strain generated in the first wood-based member and the second wood-based member becomes too large, and the first Deformation may occur in the first wood-based member and the second wood-based member. Therefore, even in such a configuration, there is a limit to effectively increasing the bonding strength.

Japanese Unexamined Patent Publication No. 2011-144509 Japanese Unexamined Patent Publication No. 9-13541 Japanese Unexamined Patent Publication No. 2011-144537

An object of the present invention is to provide a wood structure panel capable of ensuring stable yield strength with a simple configuration, a joint structure of wood structure panels, and a wall slab building in which a plurality of wood structure panels are connected. be.

As a joint structure of the wood structure panel, the present inventors fixed the steel plate to the end face of the wood structure panel and the panel surface, and also lacked the panel body on the back side of the steel plate in order to tighten the high-strength bolt. A recess and a through hole were provided, and a tightening jig for a high-strength bolt was placed in the notch and the through hole, and the steel plates on the end faces of the lumber structural panels were joined by friction joining. Although this joint structure has a simple structure, it has a feature that stable and high joint strength can be secured. The joint structure of the wood structure panel of the present invention and a wall slab in which a plurality of the wood structure panels are connected to each other are connected. It led to the invention of the building.
The present invention employs the following means in order to solve the above problems.
That is, the wood-structured panel of the first invention is a wood-structured panel constituting a building, and includes a panel main body, a steel plate fixed to the end surface of the panel main body with a linear material, and the like. The steel material plate is characterized in that it is installed at a position that closes the notch formed in the end surface of the material. Specifically, the steel plate is installed on the end face of the panel main body provided with the notch.
According to such a configuration, in order to join the wood structural panels to each other, the steel plates fixed to the end faces of the panel main body are overlapped with each other, and the steel plates are fastened to each other with high-strength bolts. Then, a frictional force is generated between the steel plates that are overlapped with each other. As a result, the steel plates fixed to the end faces of the panel main body are frictionally joined to each other, and the wood structural panels can be firmly fixed to each other.
Further, by arranging the high-strength bolts in the notches formed on the end faces of the materials, the steel plates on which the high-strength bolts are overlapped with each other can be directly fastened without the high-strength bolts passing through the panel main body portion.

The second invention is a joint structure of wood structure panels, comprising a plurality of the wood structure panels arranged facing each other and high-strength bolts for joining the wood structure panels to each other, and the wood structure. A steel plate is fixed to the end surface of the panel body of the structural panel or the surface of the panel with a linear material, and the steel plates of different wood structural panels are superposed on each other to form the high-strength bolt. It is characterized by being fastened with.
According to such a configuration, the steel plates provided on the wood structural panels are overlapped with each other, and the steel plates are tightened with high-strength bolts to be frictionally joined to the wood structural panels. It is possible to firmly join each other.
In addition, the wood structural panel is introduced by tightening high-strength bolts because the steel plate is fixed to the end surface of the panel body corresponding to the joint surface and the panel surface using a linear material. The compressive force generated in the bolt shaft portion can be applied almost evenly over a wide range from the flat plate portion of the steel plate.

The wall slab building of the third invention is characterized in that a plurality of the wood structure panels are connected by the joint structure of the wood structure panels to form a structure including the wall.
According to such a configuration, a wall in which a plurality of wooden structural panels are connected by frictional joining functions as a framework for supporting a vertical load and a bearing wall for bearing a horizontal force at the time of an earthquake. It is possible to realize a structure of a strong wall slab building including such a wall.

According to the present invention, it is possible to realize a wood structure panel capable of ensuring a stable yield strength with a simple configuration, a joint structure of wood structure panels, and a wall slab building in which a plurality of wood structure panels are connected.

It is a perspective development view which shows the joint structure of the wood structure panel which constitutes the floor of the structure of a wall slab building, and the wood structure panel which constitutes a wall. It is sectional drawing which shows the joint structure of the wood structure panel which constitutes the floor of FIG. 1 and the wood structure panel which constitutes a wall. It is a top view which shows the structure of the test body which imitated the joint structure of the wood structure panel which constitutes a floor, and the wood structure panel which constitutes a wall. It is an external view of the test body which imitated the joint structure of the wood structure panel which constitutes a floor, and the wood structure panel which constitutes a wall. It is a front view of the in-plane load test body of the wood structure panel of FIG. (A) is a front view showing the configuration of an in-plane load test piece and a test device for a wooden structural panel, and (b) is a test status diagram. It is a side view of the test apparatus for an in-plane load test body and a wood structural panel. It is a test result which shows the relationship between the in-plane load and the displacement amount by the in-plane load test of the wood structure panel shown in FIGS. It is a front view which shows the structure of another test piece which imitated the joint structure of the wood structure panel which constitutes a floor, and the wood structure panel which constitutes a wall. It is a test result which shows the relationship between the out-of-plane load and the displacement amount by the out-of-plane load test of the wood structure panel shown in FIG. It is a partial perspective view which shows the joint structure of the wood structure panel which constitutes a wall in 2nd Embodiment. It is sectional drawing which shows the joint structure of the wood structure panel which constitutes a wall in 2nd Embodiment. It is a partial perspective view which shows the modification which embeds the steel plate in the panel surface of the panel main body part of the wood structure panel. It is a partial enlarged view which shows the deformation example which embeds the steel plate in the end face of the panel main body part of a wood structure panel.

The present invention is a wall slab building in which a wood structure panel constituting a building, a joint structure of the wood structure panel, and a plurality of wood structure panels are connected. The wood structural panel of the present invention is characterized in that a notch is provided on the end face of the lumber or the surface of the panel, and the steel plate is fixed to the end face of the panel material that closes the notch by a linear material (Fig.). 1, FIG. 14). Further, the joining structure of the wood structure panel is characterized in that the end faces of the wood structure panels or the steel plates fixed to the panel surface are frictionally joined with high-strength bolts. The first embodiment is a joint structure of a wood structure panel of a floor board and a wood structure panel of a wall board (FIGS. 1 and 2). The second embodiment is a joint structure between wooden structural panels of wall boards (FIGS. 11 and 12). Further, the wall slab building is a structure in which a plurality of the wooden structural panels are connected to form a wall portion, a floor portion, and a roof portion.
Hereinafter, with reference to the attached drawings, a wood structure panel, a joint structure of wood structure panels, and a mode for carrying out a wall slab building according to the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 shows a perspective development view showing a joint structure between a wooden structure panel constituting the floor of a wall slab building structure and a wooden structure panel constituting the wall. FIG. 2 shows a cross-sectional view showing a joint structure between the wood structure panel constituting the floor of FIG. 1 and the wood structure panel constituting the wall.
As shown in FIGS. 1 and 2, the floor 2 constituting the structure 1 of the wall slab building (building) and the wall 3 provided on the floor 2 are each formed by a wooden structural panel 20. ..
The wooden structural panel 20F constituting the floor 2 includes a plate-shaped panel main body 21F and a steel plate 25F provided on the panel surface 21f in the long side direction of the panel main body 21F.
The panel main body 21F is formed of various laminated lumbers such as CLT (Cross Laminated Timber).
The steel plate 25F is a plate material made of a metal material such as iron or stainless steel, and is fixed to the panel surface 21f of the panel main body 21F by a plurality of screw screws (linear materials) 26. A bolt insertion hole 25h is formed in the steel plate 25F. In this embodiment, the bolt insertion holes 25h are formed only in one place in the central portion of the steel plate 25F, but may be provided in a plurality of places in the steel plate 25F.
Further, in the panel main body portion 21F, a through hole 23 penetrating the panel surface 21f and the panel back surface 21g on the opposite side thereof is formed at a position communicating with the bolt insertion hole 25h of the steel plate 25F.

The wood structural panel 20W constituting the wall 3 includes a plate-shaped panel main body 21W and a steel plate 25W provided on the material end surface 21s in the longitudinal direction of the panel main body 21W.
The panel main body 21F is formed of various laminated lumbers such as CLT, like the panel main body 21F constituting the floor 2.
The steel plate 25W is fixed to the material end surface 21s of the panel main body 21W with a plurality of screw screws 26. As described above, the steel plate 25W and 25F provided on the material end surface 21s of the panel main body 21W and the panel surface 21f of the panel main body 21F already described are connected to the panel main body 21W and 21F by the screw screws 26 arranged in parallel. By fixing the panels, the torsional stress acting on the panel joints when the panel bodies 21W and 21F are joined to each other can be reduced and firmly integrated with the panel, as will be described later.
A bolt insertion hole 25h is formed in the steel plate 25W.
Further, in the panel main body portion 21W, a notch portion 24 recessed in the longitudinal direction of the panel main body portion 21W from the material end surface 21s provided with the steel material plate 25W is formed at a position communicating with the bolt insertion hole 25h of the steel material plate 25W. Has been done. In the present embodiment, the notch portion 24 provided on the material end surface 21s of the panel main body portion 21W is formed at one place on the material end surface 21s for each panel so as to cover the entire surface of the material end surface 21s that closes the notch portion 24. A steel plate 25W is installed in. Further, by providing the steel plate 25W on the entire surface of the material end surface 21s, when the panel bodies 21W and 21F are joined to each other as described below, the gap between the panel bodies 21W and 21F to which the steel plates 25W and 25F are fixed is fixed. Can be eliminated.

The wood structure panel 20F constituting the floor 2 and the wood structure panel 20W constituting the wall 3 are joined as follows.
When the lower end of the wood structure panel 20W constituting the wall 3 is joined onto the wood structure panel 20F constituting the floor 2, the wood structure panel 20F is above the panel surface 21f provided with the steel plate 25F. Placed towards. The wood structure panel 20W constituting the wall 3 is arranged by superimposing the steel plate 25W provided on the material end surface 21s below the wood structure panel 20W on the steel plate 25F of the wood structure panel 20F. At this time, the bolt insertion hole 25h of the steel plate 25F and the bolt insertion hole 25h of the steel plate 25W are made to communicate with each other.
In this way, the steel plate 25F of the wood structure panel 20F and the steel plate 25W of the wood structure panel 20W are superposed on each other, and the steel material is formed from the notch 24 formed in the wood structure panel 20W. The shaft portion 27s of the high-strength bolt 27 is inserted into the bolt insertion hole 25h of the plate 25F and the bolt insertion hole 25h of the steel plate 25W. Then, the nut 28 is screwed into the shaft portion 27s of the high-strength bolt 27 in the through hole 23 of the wooden structural panel 20F. The high-strength bolt 27 and the nut 28 are fastened with a predetermined torque.
Further, when the wood structure panel 20F constituting the floor 2 is joined on the upper end portion of the wood structure panel 20W constituting the wall 3, the end surface 21s above the wood structure panel 20W constituting the wall 3 is joined. On the provided steel plate 25W, the steel plate 25F of the wood structure panel 20F with the panel surface 21f facing downward is superposed and arranged. Then, the shaft portion 27s of the high-strength bolt 27 is inserted into the bolt insertion hole 25h of the steel plate 25F and the bolt insertion hole 25h of the steel plate 25W, and the nut 28 is screwed and fastened with a predetermined torque.
In this way, at the joint between the wood structure panel 20F constituting the floor 2 and the wood structure panel 20W constituting the wall 3, the steel plate 25F and the wood structure panel 20F of the wood structure panel 20F are overlapped with each other. A compressive force is generated between the panel 20W and the steel plate 25W due to the fastening force of the high-strength bolt 27 and the nut 28. As a result, the frictional force generated between the steel plates 25F and 25W is increased, and the steel plates 25F and 25W are frictionally joined to form the wood structural panel 20F constituting the floor 2 and the wooden structural panel constituting the wall 3. It is firmly joined to 20W.

By the way, when a plurality of notches 24 are formed in one wood structural panel 20, the plurality of notches 24 are not formed on the panel surface 21j on the same side of the panel main body 21W, and the panels on different sides are not formed. It is preferably formed dispersed on the surface 21j and the panel surface 21k. When the notch portion 24 is formed on the same side of the panel main body portion 21W, a plurality of notch portions 24 are formed and the strength is lowered, whereas the panel surface 21j and the panel surface 21k on different sides are formed. By forming them in a dispersed manner, it is possible to suppress a decrease in the strength of the panel main body portion 21W.

[Experiment to confirm panel joint]
Performance verification of in-plane shear resistance and out-of-plane shear resistance was performed for the joints of wood structural panels when a load was applied in the direction parallel to the panel and in the orthogonal phrase. 3 to 8 show the outline of the test piece and the experimental result of the in-plane shearing experiment of the panel joint. In addition, FIGS. 9 and 10 show the outline of the test piece and the experimental result of the out-of-plane shear test of the panel joint.
Specifically, a notch is formed in the panel main body along the material end surface in the longitudinal direction of the wood structure panel, and a high-strength bolt provided in the notch is provided on the lower side of the surface of the wood structure panel. A through hole 23 is provided in the out-of-plane direction with respect to the panel main body so as to be aligned.

First, the in-plane shear experiment of the panel joint and the result will be described.
FIG. 3 shows a plan view showing the configuration of a test body that imitates the joint structure of the wood structure panel constituting the floor and the wood structure panel constituting the wall, and FIG. 4 shows an external view of the test body. Further, a front view of the test piece of FIG. 3 is shown in FIG.
As the test body 30, a wood structure panel 20F bonded to both ends of the wood structure panel 20W in a crank shape was used. Here, the panel main body 21W of the wooden structure panel 20W has a plate thickness of 150 mm, a length of 600 mm in the longitudinal direction (horizontal direction in FIG. 3), and a length in the lateral direction (direction orthogonal to the paper surface in FIG. 3). A 300 mm CLT material using cedar was used. The steel plate 25W was made of a steel plate having a size of 150 × 300 mm and a plate thickness of 9 mm, which was the same size as the material end surface 21s of the panel main body 21W, and was fixed to the material end surface 21s using eight M6.5 mm screw screws 26.
Further, for the panel main body 21F of the wood structure panel 20F, a CLT material having a plate thickness of 150 mm and a thickness of 300 × 300 mm and using sugi was used. As the steel plate 25F, a steel plate having a thickness of 9 mm and a thickness of 150 × 300 mm was used, and eight M6.5 mm screw screws 26 were fixed to the panel surface 21f of the panel main body 21F.
The steel plate 25F of the wood structure panel 20F is superposed on the steel plates 25W at both ends of the wood structure panel 20W, and the steel plate 25W and the steel plate 25F are connected by the high-strength bolt 27 and the nut 28 of the M12. , 132 Nm tightening torque.

A front view showing the configuration of the test apparatus is shown in FIG. 6 (a), and an experimental situation diagram is shown in FIG. 6 (b). Further, a side view of the test apparatus is shown in FIG.
As shown in FIGS. 6 and 7, the test apparatus 100 includes a table 102 on which the test body 30 is placed inside a rectangular frame 101, and a hydraulic jack 103 that applies a load to the test body 30 on the table 102. The one equipped with and was used.
With such a test apparatus 100, a panel orthogonal to the panel surface 21f and the material end surface 21s of the panel main body 21F of the wood structure panel 20W with respect to the wood structure panel 20W to which the wood structure panel 20F is joined to both ends. An out-of-plane load was repeatedly applied to the side surface 21t in the direction D1 (in-plane direction) along the panel surface 21f. In the experiment, the out-of-plane load applied by the hydraulic jack 103 was measured by the load cell 104, and the displacement amount of the test body 30 was measured by the displacement meter 105. The number of test bodies was 3, and the same measurement was repeated for each test body.

In FIG. 8, the experimental results are shown by solid lines and the characteristic value model based on the experimental results is shown by broken lines regarding the relationship between the in-plane load and the displacement amount by the in-plane load test for the joint portion of the wooden structural panel. The experimental result is an envelope connecting the points of the maximum in-plane load at the time of repeated loading and the displacement amount at that time. The characteristic value model is "Evaluation method of Section 10.6 shown in PP.156-158, Building Design and Construction Manual using CLT 2016, published by Japan Housing and Wood Technology Center". It is a complete elasto-plastic model based on.
According to the experimental results, the maximum in-plane load of the three test pieces was approximately equal to about 100 kN, and the load-displacement amount relationship after the maximum proof stress gradually decreased. In addition, at the maximum yield strength, it was confirmed that the screw screw that fixes the steel plate provided on the end face of the panel material to the panel body breaks the wood forming the panel. Focusing on the characteristic value model calculated from the experimental results, the ultimate strength of the first break point of the complete elasto-plastic model obtained from the in-plane load and displacement amount relation of the experimental results is about 55 kN, which is the maximum of the experimental results. It was about 55% of the in-plane load. Regarding the deformation performance, the displacement of the first break point of the complete elasto-plastic model at the ultimate endurance is assumed to be the yield point displacement of the complete elasto-plastic model, and the experimental result for the yield point displacement is 0.8 PMAX after the maximum in-plane load. The plasticity factor, which is expressed as a ratio to the ultimate displacement on the envelope of time, exceeded 4. Therefore, it was confirmed that the structure has excellent yield strength and final displacement of the characteristic value model based on the experimental results, and has excellent energy absorption performance.
Therefore, from the experimental results shown in FIGS. 6 to 8 and the comparison results with the characteristic value model, it was confirmed that the joint portion of the wood structure panel has sufficient in-plane shear resistance.

Next, the out-of-plane shear experiment of the panel joint and the result will be described.
FIG. 9 shows a front view showing the configuration of the out-of-plane load test piece 31 of the wood structure panel imitating the joint structure between the wood structure panel constituting the floor and the wood structure panel constituting the wall.
As shown in FIG. 9, as the test body 31, a wood structure panel 20F bonded to both ends of the wood structure panel 20W in a portal shape was used. Here, as the panel main body portions 21W and 21F of the wood structure panels 20W and 20F, and the steel plate 25W and 25F, the same ones as described above were used.
The steel plate 25F of the wood structure panel 20F is superposed on the steel plates 25W at both ends of the wood structure panel 20W, and the steel plate 25W and the steel plate 25F are connected by the high-strength bolt 27 and the nut 28 of the M12. , 132 Nm tightening torque.
With respect to such a test body 31, as shown in FIG. 9, the test apparatus 100 applies the wood structure panel 20F to the panel surface 21k of the panel body 21F of the wood structure panel 20W to which the wood structure panel 20F is joined to both ends. An out-of-plane load was applied in the direction D2 (out-of-plane direction) orthogonal to the panel surface 21k. The out-of-plane load applied by the hydraulic jack 103 at that time was measured by the load cell 104, and the displacement amount of the test body 31 was measured by the displacement meter. The number of test bodies was 3, and the same measurement was repeated for each test body.

In FIG. 10, the experimental results are shown by solid lines and the characteristic value model based on the experimental results is shown by broken lines regarding the relationship between the out-of-plane load and the displacement amount in the out-of-plane load test for the joint portion of the wooden structural panel. The experimental result is an envelope connecting the points of the maximum out-of-plane load and the displacement amount at that time in order during repeated loading. Further, the characteristic value model was evaluated by a complete elasto-plastic model in the same manner as the evaluation method shown in FIG. 8 as described above.
According to the experimental results, although the maximum out-of-plane load of the three test pieces varies, the maximum in-plane load of the three test pieces is approximately equal to about 103 kN, which is the first break point of the complete elasto-plastic model. The ultimate proof stress was about 55 kN, which was about 54% of the maximum in-plane load of the experimental results. As shown in FIG. 10, the deformation performance is expressed by the ratio to the experimental value (final displacement) of the displacement amount at 0.8 PMAX after the maximum in-plane load according to the experimental result for the yield point displacement of the complete elasto-plastic model. The plasticity ratio exceeded 6, and excellent deformation performance was recognized.
Therefore, it was confirmed that the yield strength and the final displacement of the characteristic value model based on this out-of-plane shear experiment are the same as the experimental results of the in-plane shear experiment, and the structure has excellent energy absorption performance.

According to the wood structure panel 20W as described above, the panel main body 21W and the steel plate 25W fixed to the material end surface 21s of the panel main body 21W with screw screws 26 are provided, and the steel plate 25W is the material end surface. It is installed at a position that closes the notch 24 formed in 21s.
According to such a configuration, at the portion where the wood structure panel 20F orthogonal to the wood structure panel 20W is joined, the panel main body portions 21W and 21F are fixed to the panel main body portions 21W and 21F. It is fastened by the high-strength bolt 27 in a state where 25W and 25F are overlapped with each other. Then, a frictional force is generated between the steel plates 25W and 25F that are overlapped with each other, the steel plates 25W and 25F are frictionally joined, and the wood structural panels 20W and 20F can be firmly fixed to each other.
Further, by arranging the high-strength bolt 27 in the notch portion 24 formed in the material end surface 21s, the high-strength bolts 27 do not go through the panel main body portion 21W, but the steel plates 25W and 25F on which they are overlapped with each other are connected to each other. Fasten directly.
By using the wood structure panel 20W in this way, it is possible to secure a stable yield strength in the structure 1 of the wall slab building with a simple structure.

Further, according to the joint structure of the wood structure panels 20 as described above, the plurality of wood structure panels 20 (20W, 20F) arranged to face each other and the wood structure panels 20 (20W, 20F) are connected to each other. The steel plates 25W and 25F are fixed by screw screws 26 to the material end surface 21s of the panel main body 21W or the panel surface 21f in the long side direction of the panel main body 21F. Steel plates 25W, 25F of different wood structural panels 20 (20W, 20F) are overlapped with each other and fastened with high-strength bolts 27.
According to such a configuration, the steel plates 25W and 25F provided on the wooden structural panels 20 are overlapped with each other, and the steel plates 25W and 25F are tightened with the high-strength bolt 27. The wooden structural panels 20 can be frictionally joined to each other by sandwiching the highly rigid steel plates 25W and 25F.
Further, in the wood structure panel 20, steel plates 25W and 25F are fixed to the material end surface 21s of the panel main body 21W corresponding to the joint surface and the panel surface 21f of the panel main body 21F by using screw screws 26. As a result, the compressive force generated in the shaft portion 27s introduced by tightening the high-strength bolt 27 can be applied substantially evenly over a wide range from the flat plate portions of the steel plate 25W and 25F.
Therefore, it is possible to secure a stable yield strength with a simple configuration.
Normally, frictional bonding between wood is not easy, but as described above, frictional bonding between wood is possible by frictionally bonding steel plates 25W and 25F provided on the panel main body 21W and 21F made of wood. Become. As a result, even if the joint structure is made of wood, it is easy to dynamically control the joint strength at the time of designing and constructing the building.

Further, in the wall slab building as described above, a plurality of wood structure panels 20 are connected by the joint structure of the wood structure panels 20, and a structure 1 including the wall 3 is formed.
According to such a configuration, the wall 3 in which a plurality of wooden structural panels 20 are connected by friction joining functions as a framework for supporting a vertical load and a bearing wall for bearing a horizontal force at the time of an earthquake. Therefore, it is possible to realize a structure 1 of a strong wall slab building including such a wall 3.
Therefore, it is possible to secure a stable yield strength with a simple configuration.

[Second Embodiment]
Next, a second embodiment of the wood structure panel, the joint structure of the wood structure panel, and the wall slab building of the present invention will be described.
A partial perspective view is shown in FIG. 11 and a cross-sectional view is shown in FIG. 12 regarding the joint structure between the wooden structural panels constituting the wall in the second embodiment. As shown in FIGS. 11 and 12, the wall 3 constituting the structure 1 of the wall slab building is configured by connecting a plurality of wooden structural panels 20W.
Similar to the first embodiment, the wooden structural panel 20W constituting the wall 3 includes a plate-shaped panel main body 21W, a steel plate 25W provided on the material end surface 21s in the longitudinal direction of the panel main body 21W, and the like. It is equipped with.
In each panel main body portion 21, a notch portion 24 recessed in the longitudinal direction from the material end surface 21s provided with the steel material plate 25W is formed at a position communicating with the bolt insertion hole 25h of the steel material plate 25W.
As shown in FIG. 12, the notched portions 24 of the wood structure panels 20W connected vertically are on the same side surface of the wood structure panel 20W on the upper side and the wood structure panel 20W on the lower side. It is not provided, but is provided on the opposite side surface. Further, as shown in FIG. 11, the wooden structural panels 20W constituting the wall are arranged with steel plates 25W so as to close the notches 24 provided at predetermined intervals, and the steel plates 25W are frictionally joined to each other. It is integrated.

A plurality of wooden structural panels 20W constituting such a wall 3 are joined as follows.
In the joint portion between the plurality of wood structural panels 20W constituting the wall 3, each of the wood structural panels 20W overlaps the steel plates 25W provided on the end faces 21s of the wood structural panels 20W with each other. Be placed. At this time, the steel plates 25W communicate with each other so that the bolt insertion holes 25h communicate with each other.
In this way, in a state where the steel plates 25W are overlapped with each other, a high-strength bolt is inserted from the notch portion 24 formed in one of the wood structural panels 20W into the bolt insertion hole 25h of the steel plates 25W overlapped with each other. The shaft portion 27s of 27 is inserted. Then, the nut 28 is screwed onto the shaft portion 27s of the high-strength bolt 27 in the notch portion 24 of the other wooden structural panel 20F, and the high-strength bolt 27 and the nut 28 are screwed into the high-strength bolt 27 and the nut 28 with a predetermined torque. To conclude.
In this way, at the joint between the wood structural panels 20W, a compressive force is generated between the steel plates 25W that are overlapped with each other due to the fastening force of the high-strength bolt 27 and the nut 28. As a result, the frictional force generated between the steel plates 25W is increased, the steel plates 25W are frictionally joined to each other, and the plurality of wood structural panels 20W constituting the wall 3 are firmly joined to each other.

According to the wood structure panel 20W as described above, the panel main body 21W and the steel plate 25W fixed to the material end surface 21s of the panel main body 21W with screw screws 26 are provided, and the steel plate 25W is the material end surface. It is installed at a position that closes the notch 24 formed in 21s.
According to such a configuration, in the joint portion between the wood structural panels 20W, the panel main body portions 21W are fastened with the high-strength bolt 27 in a state where the steel plate 25W are overlapped with each other. Then, a frictional force is generated between the steel plates 25W that are overlapped with each other, and the steel plates 25W are frictionally joined to each other, so that the wood structural panels 20W can be firmly fixed to each other.
Further, by arranging the high-strength bolt 27 in the notch portion 24 formed in the material end surface 21s, the high-strength bolts 27 do not go through the panel main body portion 21W, but the steel plates 25W and 25F on which they are overlapped with each other are connected to each other. Fasten directly.
By using the wood structure panel 20W in this way, it is possible to construct a wall portion in the structure 1 of the wall slab building that can secure a stable yield strength with a simple configuration.

Further, according to the joining structure of the wood structure panel 20W as described above, a plurality of wood structure panels 20W arranged to face each other and a high-strength bolt 27 for joining the wood structure panels 20W to each other are provided. A steel plate 25W is fixed to the end surface 21s of the panel main body 21W of the wood structural panel 20W with screw screws 26, and the steel plates 25W of different wood structural panels 20W are overlapped with each other to form a high-strength bolt. It is tightened at 27.
According to such a configuration, the steel structural panels 25W provided on each of the wood structural panels 20W are overlapped with each other, and the steel plates 25W are tightened with the high-strength bolt 27 to tighten the wooden structural panels. 20W can be frictionally joined to each other by sandwiching a highly rigid steel plate 25W.
Further, in the wood structural panel 20W, the steel plate 25W is fixed to the material end surface 21s of the panel main body 21W corresponding to the joint surface by using the screw screw 26, so that the steel plate 25W is introduced by tightening the high-strength bolt 27. The compressive force generated in the shaft portion 27s can be applied substantially evenly over a wide range from the flat plate portion of the steel plate 25W.
Therefore, it is possible to secure a stable yield strength with a simple configuration.

Further, in the wall slab building as described above, a plurality of wood structure panels 20W are connected by the joint structure of the wood structure panel 20W to form a structure 1 including the wall 3.
According to such a configuration, the wall 3 in which a plurality of wood structural panels 20W are connected by friction joining functions as a framework for supporting a vertical load and a bearing wall for bearing a horizontal force at the time of an earthquake. Therefore, it is possible to realize a structure 1 of a strong wall slab building including such a wall 3.
Therefore, it is possible to secure a stable yield strength with a simple configuration.

(Modified example of the embodiment)
The wood structure panel, the joint structure of the wood structure panel, and the wall slab building of the present invention are not limited to the above-described embodiments described with reference to the drawings, and are various in the technical scope thereof. A modified example is conceivable.
For example, in each of the above embodiments, the steel plate 25W and 25F are provided on the material end surface 21s of the panel main body 21W and the panel surface 21f in the long side direction of the panel main body 21F, but the present invention is not limited to this.
FIG. 13 is a perspective view showing a modified example in which a steel plate is embedded in the panel surface of the panel main body of the wooden structure panel. FIG. 14 shows a partially enlarged view showing a modified example in which a steel plate is embedded in the end surface of the panel main body of the wood structural panel.
As shown in FIG. 13, a recess 40F in which the steel plate 25F is embedded may be formed on the panel surface 21f of the panel main body 21F. Further, as shown in FIG. 14, a recess 40W in which the steel plate 25W is embedded may be formed in the material end surface 21s of the panel main body portion 21W. By embedding the steel plates 25W and 25F in the recesses 40F and 40W, it is possible to suppress the steel plates 25W and 25F from being conspicuous at the joints between the wood structural panels 20W and 20F.

(Other variants)
Further, in each of the above embodiments and modifications thereof, the joint structure constitutes a joint portion between the wood structure panel 20F constituting the floor 2 and the wood structure panel 20W constituting the wall 3, and the wall 3. It is applied to the joint portion between the wooden structural panels 20W, but the present invention is not limited to this. The present invention may be applied to other parts such as the wood structure panels 20F constituting the floor 2 and the joints between the wood structure panels constituting the roof portion of the building.
In each of the above-described embodiments, the steel plate is fixed to the panel body with screw screws arranged in parallel, but it may be in a single row as long as the fixing performance of the screw screws alone is excellent. If the steel plate can be fixed with one screw screw, it is possible to realize a wall slab building by connecting a joint structure of wood structural panels and a plurality of wood structural panels at a short construction period and at low cost.
In addition to this, as long as it does not deviate from the gist of the present invention, it is possible to select the configuration described in the above embodiment or change it to another configuration as appropriate.

1 Structure 24 Notch 3 Wall 25F, 25W Steel plate 20, 20F, 20W Wood structural panel 26 Screw screw (linear material)
21F, 21W Panel body 27 High-strength bolt 21f Panel surface 30 In-plane load test piece of wood structure panel 21s Material end face 31 Out-of-plane load test piece of wood structure panel

Claims (3)

A wooden structural panel that constitutes the floor or wall of a building.
Panel body and
A steel plate fixed to the end face of the panel body with a linear material,
Equipped with high-strength bolts and nuts ,
The steel plate is installed at a position that closes the notch formed in the end face of the material.
The steel plate is overlapped with the steel plate of the other wood structural panel, and the nut provided with the steel plate sandwiched is screwed to the high-strength bolt provided in the notch. A wooden structural panel characterized in that the steel plates are frictionally joined to each other . It is a joint structure of wood structural panels.
A plurality of the wooden structural panels arranged to face each other,
Equipped with high-strength bolts and nuts for joining the wooden structural panels to each other,
A steel plate is fixed to the end surface of the panel main body of the wood structure panel or the surface of the panel with a linear material, a bolt insertion hole is formed in the steel plate, and the steel plate is fixed to the end surface of the material. In that case, a notch is formed in the end surface of the material, and when the steel plate is fixed to the surface of the panel, a through hole is formed so as to penetrate the surface of the panel and the back surface of the panel on the opposite side. , The notch or the through hole is provided at a position communicating with the bolt insertion hole.
The steel plates of different wood structural panels are superposed on each other , and the high-strength bolts are inserted into the bolt insertion holes of the superposed steel structural panels from the notch or through hole of one of the wood structural panels. The nut provided in the notch or the through hole of the other wooden structural panel is screwed into the high-strength bolt, and the steel plates are frictionally joined to each other . The characteristic joint structure of wood structural panels. A wall slab building according to claim 2, wherein a plurality of the wood structure panels are connected by the joint structure of the wood structure panels to form a structure including a wall.

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