Connecting structures, walls, and seismic walls
The connection of a wooden wall to a metal structure using angled metal rods improves the load-bearing capacity by managing tensile and shear forces, addressing the inadequacies in existing wooden seismic walls.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TODA CORP
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-03
AI Technical Summary
The bearing capacity of the connection part between the column-beam frame and each wooden panel in existing wooden seismic walls is inadequate.
A connection structure that connects a wooden wall body to a metal structure using metal rods, where the rods are fixed to the end faces of the wall at predetermined angles such that they intersect the center line of the wall closer to a specific surface, allowing the rods to bear both tensile and shear forces, thereby improving load-bearing capacity.
The configuration enhances the load-bearing capacity of the connection structure by effectively distributing and managing tensile and shear forces, resulting in a more robust connection between the wooden and metal components.
Smart Images
Figure 2026111178000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a connection structure, a wall body, and a seismic wall.
Background Art
[0002] Patent Document 1 discloses a wooden seismic wall. The wooden seismic wall of Patent Document 1 includes a wooden thick panel surface material composed of a plurality of wooden panels, a column-beam frame surrounding the four peripheries of the wooden thick panel surface material, and a connecting tool connecting the column-beam frame and each wooden panel.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] There is room for improvement in the bearing capacity of the connection part between the column-beam frame and each wooden panel in the wooden seismic wall of Patent Document 1.
[0005] An object of the present disclosure is to provide a connection structure, a wall body, and a seismic wall that can improve the bearing capacity.
Means for Solving the Problems
[0006] A connection structure according to one aspect of the present disclosure is a connection structure that connects a wooden wall body and a metal structure by a metal bar, where the wall body includes a first surface extending in the length direction of the wall body, a second surface extending in the width direction intersecting the length direction, and an end face intersecting the first surface and the second surface and The rod is fixed to the end face of the wall at a predetermined angle to the second face, such that a portion of it is located inside the wall, and a first virtual straight line extending along the rod intersects the center line extending in the longitudinal direction through the center point of the wall closer to the second face than the center point.
[0007] A wall in one aspect of this disclosure is A wooden wall that can be connected to a metal structure by metal rods, The first surface extending in the longitudinal direction of the wall, A second surface extending in the width direction intersecting the longitudinal direction, The end grain surfaces intersecting the first and second surfaces and Equipped with, The end grain surface has at least one accommodating hole capable of accommodating a portion of the rod material, The aforementioned housing hole is configured such that a virtual straight line extending along the housed rod intersects the center line extending in the longitudinal direction through the center point of the wall body closer to the second surface than the center point.
[0008] A seismic wall in one aspect of this disclosure is The wall of the above embodiment, The aforementioned structure, At least one of the rod members, which is housed in the aforementioned housing hole and connects the wall and the structure, It is equipped with. [Effects of the Invention]
[0009] According to this disclosure, it is possible to realize connecting structures, wall bodies, and seismic walls that can improve load-bearing capacity. [Brief explanation of the drawing]
[0010] [Figure 1] Front view showing an earthquake-resistant wall equipped with a wall body according to one embodiment of the present disclosure. [Figure 2] Figure 1 is a front view showing the wall structure of the seismic-resistant wall. [Figure 3] This diagram illustrates the method for calculating the predetermined angle of the rod members of the seismic wall in Figure 1 relative to the second or fourth surface. [Figure 4] Expanded view of the seismic wall in FIG. 1.
Embodiment for Carrying Out the Invention
[0011] Hereinafter, an example of the present disclosure will be described with reference to the accompanying drawings. The following description is merely illustrative in nature and does not limit the present disclosure, its applications, and its uses. The accompanying drawings are schematic drawings, and the illustrated configurations and actual products may have different dimensional ratios and the like. In the following description, terms such as "about" or "substantially" mean that the values, shapes, etc. following these terms include the allowable error ranges determined by those skilled in the art.
[0012] The connection structure of one aspect of the present disclosure is applied, for example, to the seismic wall 1 including the wall body 10 shown in FIG. 1. The seismic wall 1 includes a wooden wall body 10, a metal structure 20, and at least one bar 30 connecting the wall body 10 and the structure 20. In this aspect, the seismic wall 1 includes four structures 20 and twelve bars 30.
[0013] The wall body 10 has a substantially rectangular shape when viewed along the thickness direction (for example, the Z direction). At the four corners of the wall body 10, end grain surfaces 151, 152, 153, and 154 are provided, respectively. When viewed along the thickness direction Z, the surfaces extending in the length direction (for example, the Y direction) of the wall body 10 are defined as the first surface 11 and the third surface 13, respectively, and the surfaces extending in the width direction (for example, the X direction) of the wall body 10 are defined as the second surface 12 and the fourth surface 14, respectively. The width direction X is a direction intersecting the length direction Y. The first surface 11 and the third surface 13 are located at different positions in the width direction X, and the second surface 12 and the fourth surface 14 are located at different positions in the length direction Y. The end grain surface 151 intersecting the first surface 11 and the second surface 12 is an example of the first end grain surface. The end grain surface 152 intersecting the second surface 12 and the third surface 13 is an example of the second end grain surface. The end grain surface 153 intersecting the third surface 13 and the fourth surface 14 is an example of the third end grain surface. The end grain surface 154 intersecting the fourth surface 14 and the first surface 11 is an example of the fourth end grain surface.
[0014] As shown in Fig. 2, each end face 151-154 has at least one receiving hole 155 capable of accommodating a part of the bar 30. In this embodiment, each end face 151-154 has three receiving holes 155. When viewed along the thickness direction Z, the three receiving holes 155 are equally spaced along each end face 151-154 and extend in a direction (e.g., a perpendicular direction) intersecting each end face 151-154.
[0015] As shown in Fig. 2, let a virtual straight line extending along the accommodated bar 30 be L1 (an example of the first virtual straight line). That is, the receiving hole 155 and the bar 30 accommodated in the receiving hole 155 are located on the virtual straight line L1. Let a center line passing through the center point CP of the wall body 10 and extending in the length direction Y be CL. The receiving holes 155 of the first end face 151 and the second end face 152 are configured such that the virtual straight line L1 intersects the center line CL closer to the second face 12 than the center point CP. The receiving holes 155 of the third end face 153 and the fourth end face 154 are configured such that the virtual straight line L1 intersects the center line CL closer to the fourth face 14 than the center point CP.
[0016] In this embodiment, the receiving holes 155 of each end face 151-154 all have the same length. That is, of the two ends of the receiving hole 155 in the direction in which the receiving hole 155 extends, the end located inside the wall body 10 is located on a virtual straight line L2 (an example of the second virtual straight line) extending parallel to each end face 151-154.
[0017] Each structure 20 is located at each of the four corners of the wall body 10 and is connected to a beam 100 made of, for example, reinforced concrete, steel, or steel-reinforced concrete via a plate 110 (see Fig. 4). Each structure 20 has a face 21 facing the end faces 151-154 and a face 22 facing the beam 100, and the plate 110 is connected to the face 22. A gap 23 (see Fig. 4) is provided between the end faces yet to be completed 151-54 and the face 21.
[0018] Each rod 30 is partially located inside the wall and fixed to the end faces 151-154. The fixing of each rod 30 to the end faces 151-154 is performed, for example, by housing a portion of the rod 30 in a housing hole 155 filled with a resin adhesive.
[0019] As shown in Figure 2, the rod 30 housed in the housing hole 155 of the first end grain surface 151 is fixed to the first end grain surface 151 at a predetermined angle θ1 with respect to the second surface 12. The rod 30 housed in the housing hole 155 of the second end grain surface 152 is fixed to the second end grain surface 152 at a predetermined angle θ2 with respect to the second surface 12. The rod 30 housed in the housing hole 155 of the third end grain surface 153 is fixed to the third end grain surface 153 at a predetermined angle θ3 with respect to the fourth surface 14. The rod 30 housed in the housing hole 155 of the fourth end grain surface 154 is fixed to the fourth end grain surface 154 at a predetermined angle θ4 with respect to the fourth surface 14.
[0020] The predetermined angles θ1 to θ4 are set, for example, based on the tensile strength and shear strength of the rod 30. An example of how to calculate the predetermined angles θ1 to θ4 is shown below (see Figure 3). In the example below, T is the tensile force vector in the length direction Y that occurs in the rod 30 fixed to each end face 151 to 154 (hereinafter referred to as the fixed rod 30), and Q is the shear force vector in the width direction X that occurs in the fixed rod 30. • Calculate the axial force vector N acting on the fixed rod 30. The absolute value of this axial force vector N is √(T 2 +Q 2 It is calculated from ). • Calculate the shear strength vector Q1 of the fixed bar 30. The shear strength vector Q1 is calculated, for example, using the Hankinson equation. The tensile strength vector T1 of the fixed rod 30 is calculated from the calculated axial force vector N and shear strength vector Q1. The first angle α1 is calculated as the angle between the axial force vector N and the shear force vector Q, and the second angle α2 is calculated as the angle between the inverse vector N1 of the axial force vector N and the tensile strength vector T1. The difference between the first angle α1 and the second angle α2 is set as a predetermined angle θ1 to θ4.
[0021] As shown in Figure 4, of the two ends of the rod 30 in the direction in which the rod extends, the end located inside the wall 10 is designated as the first end 31, and the end located outside the wall 10 is designated as the second end 32. In Figure 4, the second end 32 is located in a position that overlaps with the structure 20 when viewed along the thickness direction Z. The first end 31 of each rod 30 is adjacent to the bottom of the housing hole 155. The first end 31 of each rod 30 is located on a virtual line L2, and the second end 32 is located on a virtual line L3 (an example of a third virtual line) that extends parallel to the end faces 151-154 and the virtual line L2, and between the end faces 151-154 and the virtual line L2.
[0022] As an example, the second end 32 of each rod 30 is provided with a screw thread. Each rod 30 is fixed to the structure 20 by screw fastening using fastening members 120 such as nuts.
[0023] The connection structure disclosed herein can have the following effects:
[0024] This connection structure connects a wooden wall 10 and a metal structure 20 using a metal rod 30, wherein the wall 10 includes a first surface 11 extending in the longitudinal direction of the wall 10, a second surface 12 extending in the width direction of the wall 10, and an end surface 151 intersecting the first surface 11 and the second surface 12. A portion of the rod 30 is located inside the wall 10, and the rod 30 is fixed to the end surface 151 at a predetermined angle θ1 with respect to the second surface 12 such that a virtual straight line L1 extending along the rod 30 intersects the centerline CL of the wall 10 closer to the second surface 12 than to the center point CP. With this configuration, the rod 30 bears not only tensile force but also shear force, thereby improving the load-bearing capacity of the connection structure.
[0025] The predetermined angle θ1 is set based on the tensile strength and shear strength of the rod member 30. This configuration makes it possible to more reliably improve the strength of the connecting structure.
[0026] The first angle α1 is defined as the angle between the axial force vector N of the bar 30 and the shear force vector Q, which indicates the magnitude and direction of the shear force acting on the bar 30. The second angle α2 is defined as the angle between the inverse vector of the axial force vector N and the tensile strength vector T, which indicates the magnitude and direction of the tensile strength. The difference between the first angle α1 and the second angle α2 is set as a predetermined angle. With this configuration, the strength of the connection structure can be more reliably improved.
[0027] The rod 30 extends in a direction perpendicular to the end grain surface 151. This configuration allows for a more reliable improvement in the load-bearing capacity of the connection structure.
[0028] Multiple rods 30 connect the wall 10 and the structure 20. The multiple rods 30 are positioned at equal intervals along the end grain surface 151. When viewed along the thickness direction of the wall 10, the first end 31 of each of the multiple rods 30, located inside the wall 10, is positioned on a virtual straight line L2 that extends parallel to the end grain surface 151. The second end 32, located outside the wall 10, extends parallel to the end grain surface 151 and the virtual straight line L2, and is positioned on a virtual straight line L3 between the end grain surface 151 and the virtual straight line L2, with the end grain surface 151 positioned between the virtual straight line L2 and the virtual straight line L3. This configuration makes it possible to more reliably improve the load-bearing capacity of the connection structure.
[0029] Wall 10 can exert the following effects:
[0030] A wooden wall 10 connectable to a metal structure 20 by metal rods 30 comprises a first surface 11 extending in the longitudinal direction of the wall 10, a second surface 12 extending in the width direction of the wall 10, and an end surface 151 intersecting the first surface 11 and the second surface 12. The end surface 151 has at least one accommodating hole 155 capable of accommodating a portion of the rod 30. The accommodating hole 155 is configured such that a virtual straight line L1 extending along the accommodating rod 30 intersects the centerline CL of the wall 10 closer to the second surface 12 than to the center point CP. With this configuration, the rod 30 can bear not only tensile force but also shear force, thereby improving the load-bearing capacity of the connection structure to the structure 20. As a result, a wall with improved load-bearing capacity can be realized.
[0031] The wall 10 comprises a third surface 13, a fourth surface 14, a first end face 151 intersecting the first surface 11 and the second surface 12, a second end face 152 intersecting the second surface 12 and the third surface 13, a third end face 153 intersecting the third surface 13 and the fourth surface 14, and a fourth end face 154 intersecting the fourth surface 14 and the first surface 11. Each of the first to fourth end faces 151 to 154 has at least one housing hole 155. The housing holes 155 of the first end face 151 and the second end face 152 are configured such that a virtual straight line L1 extending along the housed rod 30 intersects the center line CL of the wall 10 closer to the second surface 12 than to the center point CP. The accommodating holes 155 in the third end face 153 and the fourth end face 154 are configured such that a virtual straight line L1 extending along the accommodated rod 30 intersects the centerline CL of the wall 10 closer to the fourth face 14 than to the center point CP. This configuration makes it possible to more reliably realize a wall 10 that can improve load-bearing capacity.
[0032] Seismic wall 1 can provide the following effects:
[0033] The seismic wall 1 comprises a wall body 10, a structural element 20, and at least one rod member 30 that is housed in a housing hole 155 and connects the wall body 10 and the structural element 20. With this configuration, a seismic wall 1 that can improve load-bearing capacity can be realized.
[0034] The connection structure and wall 10 of this disclosure can be configured as follows:
[0035] The predetermined angles θ1 to θ4 are angles at which a virtual straight line L1 extending along the rod 30 intersects the center line CL of the wall 10 closer to the second surface 12 (or fourth surface 14) than to the center point CP. For example, the predetermined angles θ1 to θ4 may be set by considering at least one of the tensile strength and shear strength of the rod 30, as well as other parameters other than the tensile strength and shear strength of the rod 30.
[0036] The first end 31 of all the rods 30 does not have to be located on the virtual straight line L2. Similarly, the second end 32 of all the rods does not have to be located on the virtual straight line L3.
[0037] The wall 10 is provided with the connection structure of the present disclosure at all four corners, but is not limited to this; it is sufficient to provide the connection structure of the present disclosure at at least one corner.
[0038] Various aspects of this disclosure are described below.
[0039] The connection structure in the first aspect of this disclosure is, A connecting structure that connects a wooden wall and a metal structure using metal rods, The aforementioned wall body, The first surface extending in the longitudinal direction of the wall, A second surface extending in the width direction intersecting the longitudinal direction, The end grain surfaces intersecting the first and second surfaces and Includes, The rod is fixed to the end face of the wall at a predetermined angle to the second face, such that a portion of it is located inside the wall, and a first virtual straight line extending along the rod intersects the center line extending in the longitudinal direction through the center point of the wall closer to the second face than the center point.
[0040] The connection structure of the second aspect of this disclosure is, in the connection structure of the first aspect, The predetermined angle is set based on the tensile strength and shear strength of the rod.
[0041] The connection structure of the third aspect of this disclosure is, in the connection structure of the second aspect, The first angle is defined as the angle between the axial force vector of the rod and the shear force vector indicating the magnitude and direction of the shear force generated in the rod. If the second angle is defined as the angle formed by the inverse vector of the axial force vector and the tensile strength vector indicating the magnitude and direction of the tensile strength, The difference between the first angle and the second angle is set as the predetermined angle.
[0042] The connection structure of the fourth aspect of this disclosure is, in any of the connection structures of the first to third aspects, The aforementioned rod extends in a direction perpendicular to the end grain surface.
[0043] The connection structure of the fifth aspect of this disclosure is, in the connection structure of the fourth aspect, Multiple rods connect the wall and the structure. Multiple of the aforementioned rods are positioned at equal intervals along the end grain surface, When each of the multiple rod members is viewed along the thickness direction of the wall body intersecting the length direction and the width direction, the first end of the rod member located inside the wall body is located on a second virtual straight line extending parallel to the end grain surface, and the second end of the rod member located outside the wall body is located on a third virtual straight line extending parallel to the end grain surface and the second virtual straight line, with the end grain surface located between the end grain surface and the second virtual straight line.
[0044] The wall in the sixth aspect of this disclosure is A wooden wall that can be connected to a metal structure by metal rods, The first surface extending in the longitudinal direction of the wall, A second surface extending in the width direction intersecting the longitudinal direction, The end grain surfaces intersecting the first and second surfaces and Equipped with, The end grain surface has at least one accommodating hole capable of accommodating a portion of the rod material, The aforementioned housing hole is configured such that a virtual straight line extending along the housed rod intersects the center line extending in the longitudinal direction through the center point of the wall body closer to the second surface than the center point.
[0045] The seventh aspect of the present disclosure is a wall in the sixth aspect, A third surface located at a different position in the width direction from the first surface and extending in the length direction, A fourth surface located at a different position in the longitudinal direction from the second surface and extending in the width direction, The first end grain surface, which is the end grain surface, A second end grain surface intersecting the second and third surfaces, A third end grain surface intersecting the third and fourth surfaces, The fourth end face intersecting the fourth face and the first face and Equipped with, The first end grain surface has at least one of the first receiving holes, which are the receiving holes. The second end face has at least one second accommodating hole capable of accommodating a portion of the rod material, The third end face has at least one third accommodating hole capable of accommodating a portion of the rod material, The fourth end face has at least one fourth accommodating hole capable of accommodating a portion of the rod material, The second housing hole is configured such that a virtual straight line extending along the housed rod intersects the center line closer to the second surface than the center point. Each of the third and fourth housing holes is configured such that a virtual straight line extending along the housed rod intersects the center line closer to the fourth surface than to the center point.
[0046] The seismic wall of the eighth aspect of this disclosure is A wall according to the sixth or seventh embodiment, The aforementioned structure, At least one of the rod members, which is housed in the aforementioned housing hole and connects the wall and the structure, It is equipped with.
[0047] The embodiments and variations of this disclosure can be combined with each other, or with each other, or with each other. Features included in the embodiments and variations of this disclosure can also be combined with each other.
[0048] As will be apparent to those skilled in the art, many modifications and variations of this disclosure can be realized without departing from the scope and spirit of this disclosure. This disclosure is limited only by the terms of the claims, along with the entire scope of the equivalents to which the claims are entitled. [Explanation of Symbols]
[0049] 1. Seismic wall 10 wall 11 Page 1 12 Side 2 13 Page 3 14 Side 4 151-154 End grain 155 housing holes 20 Structure 21, 22 sides 23 gaps 30 Bar material 31 First end 32 Second end 100 beams 110 volts 120 Fastening member
Claims
1. A connecting structure that connects a wooden wall and a metal structure using metal rods, The aforementioned wall body, The first surface extending in the longitudinal direction of the wall body, A second surface extending in the width direction intersecting the longitudinal direction, The end grain surfaces intersecting the first and second surfaces and Includes, The rod is fixed to the end face of the wall at a predetermined angle to the second face, such that a portion of the rod is located inside the wall, and a first virtual straight line extending along the rod intersects the center line extending in the longitudinal direction of the wall, passing through the center point of the wall, closer to the second face than the center point.
2. The connection structure according to claim 1, wherein the predetermined angle is set based on the tensile strength and shear strength of the rod.
3. The first angle is defined as the angle between the axial force vector of the rod and the shear force vector indicating the magnitude and direction of the shear force generated in the rod. If the second angle is defined as the angle formed by the inverse vector of the axial force vector and the tensile strength vector indicating the magnitude and direction of the tensile strength, The connection structure according to claim 2, wherein the difference between the first angle and the second angle is set as the predetermined angle.
4. The connection structure according to any one of claims 1 to 3, wherein the rod extends in a direction perpendicular to the end grain surface.
5. Multiple rods connect the wall and the structure. Multiple of the aforementioned rods are positioned at equal intervals along the end grain surface, The connection structure according to claim 4, wherein, when viewed along the thickness direction of the wall intersecting the length direction and the width direction, of the ends of each of the plurality of rod members, the first end located inside the wall is located on a second virtual straight line extending parallel to the end grain surface, and the second end located outside the wall is located on a third virtual straight line extending parallel to the end grain surface and the second virtual straight line, with the end grain surface located between the second virtual straight line and the third virtual straight line.
6. A wooden wall that can be connected to a metal structure by metal rods, The first surface extending in the longitudinal direction of the wall body, A second surface extending in the width direction intersecting the longitudinal direction, The end grain surfaces intersecting the first and second surfaces and Equipped with, The end grain surface has at least one accommodating hole capable of accommodating a portion of the rod material, The aforementioned housing hole is configured such that a virtual straight line extending along the housed rod intersects a center line extending in the longitudinal direction, passing through the center point of the wall, closer to the second surface than the center point.
7. A third surface located at a different position in the width direction from the first surface and extending in the length direction, A fourth surface located at a different position in the longitudinal direction from the second surface and extending in the width direction, The first end grain surface, which is the end grain surface, A second end grain surface intersecting the second and third surfaces, A third end grain surface intersecting the third and fourth surfaces, The fourth end grain surface intersecting the fourth surface and the first surface and Equipped with, The first end grain surface has at least one of the first receiving holes, which are the receiving holes. The second end face has at least one second accommodating hole capable of accommodating a portion of the rod material, The third end face has at least one third accommodating hole capable of accommodating a portion of the rod material, The fourth end face has at least one fourth accommodating hole capable of accommodating a portion of the rod material, The second housing hole is configured such that a virtual straight line extending along the housed rod intersects the center line closer to the second surface than the center point. The wall according to claim 6, wherein each of the third and fourth housing holes is configured such that a virtual straight line extending along the housed rod intersects the center line closer to the fourth surface than to the center point.
8. A wall according to claim 6 or 7, The aforementioned structure, At least one of the rod members, which is housed in the aforementioned housing hole and connects the wall and the structure, A seismic-resistant wall equipped with these features.