Wood structure bidirectional beam mutual supporting type mortise and tenon joint
By using a cross-mortise and tenon structure and steel pads to reinforce the wooden beam joints, the problem of loosening of the mortise and tenon joints under load was solved, achieving reliable load-bearing capacity and rotational stiffness, and ensuring the stability of the structure.
Patent Information
- Application Number
- CN202520128844.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Under wind suction loads or vertical seismic loads, the tenon and mortise joints of two-way beams may loosen or come loose, leading to changes in the internal force distribution and reduced reliability of the inter-bearing structure.
The wooden beams employ a cross-mortise and tenon structure, combined with steel pads and double-ended tie bolts. Loads are transferred through self-tapping screws and bolts, enhancing the load-bearing capacity and rotational stiffness of the joints.
It improves the load-bearing capacity and rotational stiffness of mortise and tenon joints, prevents damage from loosening or detachment of tenons, and ensures the reliability of the structure under gravity loads, wind suction loads, and vertical seismic action.
Smart Images
Figure CN223793710U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building engineering especially relates to a wood structure bidirectional beam mutual support type mortise and tenon joint. BACKGROUND
[0002] The mortise and tenon joint of bidirectional beam is generally applied to the mutual support type wood structure building, and the beams in two directions are respectively provided with upper and lower notches at the joint position, are mortise and tenon, are clamped up and down, and transmit force through the contact surface pressure.In the action of wind suction load or vertical seismic load, the joint force in the mutual support type joint position can be opposite to the gravity load, causes the loosening of the beams in the contact surface position or even the dislodging of the tenon and other adverse conditions.If the bearing capacity of a joint decreases, it will also cause the internal force distribution of the whole mutual support type structure to change, the joint force of other regions to further reverse or exceed the bearing capacity of the joint, continuous damage, and further affect the reliability of the whole structure. SUMMARY
[0003] In view of the problems in the prior art, the utility model provides a wood structure bidirectional beam mutual support type mortise and tenon joint, which can exhibit reliable bearing capacity and good rotational stiffness under the action of gravity load, wind suction load, vertical earthquake and the like, and can effectively prevent the loosening or dislodging damage under the action of wind suction load, vertical earthquake and the like opposite to the gravity load.
[0004] The utility model embodiment provides a wood structure bidirectional beam mutual support type mortise and tenon joint, which comprises:
[0005] The first wood beam and the second wood beam in the cross mortise and tenon state, the first wood beam is provided with a lower notch, the lower notch can be closely fitted with the second wood beam, the second wood beam is provided with an upper notch, the upper notch corresponds in position with the lower notch, and the upper notch can be closely fitted with the first wood beam, and further comprising:
[0006] The first steel backing plate is located on the upper surface of the intersection area of the first wood beam and the second wood beam;
[0007] The second steel backing plate is located on the lower surface of the intersection area of the second wood beam and the first wood beam;
[0008] The double-end tension bolt penetrates the intersection area of the first wood beam and the second wood beam, and the end of the double-end tension bolt can be locked by the tension nut above the first steel backing plate and below the second steel backing plate;
[0009] The first self-tapping screw is inclinedly screwed into the joint from the shoulder of the lower notch of the first wood beam;
[0010] A second self-tapping screw is obliquely screwed into the node from the shoulder of the second wood beam notch.
[0011] According to some embodiments of the present application, the lower notch is provided with a first wood beam through hole on the notch bottom surface, and the first wood beam through hole has a hole diameter matched with the diameter of the double-end tension bolt rod.
[0012] According to some embodiments of the present application, the upper notch is provided with a second wood beam through hole on the notch bottom surface, and the second wood beam through hole has a hole diameter matched with the diameter of the double-end tension bolt rod.
[0013] According to some embodiments of the present application, the first steel backing plate is provided with a first bolt hole corresponding to the first wood beam through hole and the second wood beam through hole, and the first bolt hole has a hole diameter matched with the diameter of the double-end tension bolt rod.
[0014] According to some embodiments of the present application, the second steel backing plate is provided with a second bolt hole corresponding to the first wood beam through hole and the second wood beam through hole, and the second bolt hole has a hole diameter matched with the diameter of the double-end tension bolt rod.
[0015] According to some embodiments of the present application, the double-end tension bolt, the self-tapping screw and the self-tapping screw are respectively provided with four branches.
[0016] According to some embodiments of the present application, the lower notch is perpendicular to the length direction of the first wood beam, and the notch width is equal to the beam width of the second wood beam; the upper notch is perpendicular to the length direction of the second wood beam, and the notch width is equal to the beam width of the first wood beam.
[0017] According to some embodiments of the present application, the beam height of the first wood beam and the second wood beam is equal, and the sum of the depths of the lower notch and the upper notch is equal to the beam height of the first wood beam.
[0018] According to some embodiments of the present application, the intersection angle of the first wood beam and the second wood beam is 90°.
[0019] According to some embodiments of the present application, the lower notch is perpendicular to the length direction of the first wood beam, and the notch width is equal to the beam width of the second wood beam; the upper notch is perpendicular to the length direction of the second wood beam, and the notch width is equal to the beam width of the first wood beam.
[0020] According to some embodiments of the present application, the first self-tapping screw and the second self-tapping screw have a screwing angle of 45°.
[0021] The embodiments of the present application have at least the following beneficial effects:
[0022] The mortise and tenon joint of the two-way beam in the wooden structure of this utility model can transfer external loads through the contact surfaces of the upper and lower grooves, thereby improving the bearing capacity of the mortise and tenon joint; on the other hand, this utility model can transfer the joint force to the first steel pad and the second steel pad through the double-headed tie bolts, and then transfer the external load force to the outer surface of the wooden beam, so that it can bear the joint loads in different directions at the same time, thereby improving the reliability of the joint.
[0023] Therefore, this utility model can exhibit reliable bearing capacity and good rotational stiffness under gravity load, wind suction load, vertical earthquake and other effects, and can effectively prevent the tenon from loosening or falling off. Attached Figure Description
[0024] Figure 1 This is a structural schematic diagram of the mortise and tenon joint of the two-way beam mutual support in the wooden structure of this utility model;
[0025] Figure 2 for Figure 1 The diagram shows a disassembly diagram of a mortise and tenon joint with mutual support between two-way beams in a timber structure.
[0026] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the AA surface of a two-way beam interlocking mortise and tenon joint in a timber structure.
[0027] Figure 4 for Figure 3 The schematic diagram of the AA section structure is shown as a schematic diagram of the BB section structure.
[0028] Figure 5 for Figure 3 The schematic diagram of the AA cross-sectional structure shown is a schematic diagram of the CC plane cross-sectional structure.
[0029] Figure label:
[0030] 1-First wooden beam; 2-Second wooden beam; 3-First steel pad; 4-Second steel pad; 5-Double-ended tie bolt; 6-First self-tapping screw; 7-Second self-tapping screw; 8-Lower groove; 9-Upper groove;
[0031] 11-First through hole in the wooden beam; 21-Second through hole in the wooden beam; 31-First bolt hole; 41-Second bolt hole. Detailed Implementation
[0032] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.
[0033] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by the above, below, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0034] In the description of the present application, the meaning of "several" is one or more, the meaning of "a plurality of" is two or more, greater than, less than, more than, etc. are understood as not including the number, "above", "below", "within" and the like are understood as including the number. If there is a description of "first", "second" and the like, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.
[0035] In the description of the present application, unless otherwise explicitly limited, the words "set", "install", "connect", "connect" and the like should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.
[0036] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments:
[0037] As shown in the drawings and specific embodiments, a kind of wood structure bidirectional beam mutual support type mortise and tenon joint, it includes: Figures 1 to 5
[0038] First wood beam 1 and second wood beam 2 in cross mortise and tenon state, the first wood beam 1 is provided with lower notch 8, the lower notch 8 can be closely fitted second wood beam 2, the second wood beam 2 is provided with upper notch 9, the upper notch 9 is in position with lower notch 8, and upper notch 9 can be closely fitted first wood beam 1;
[0039] In some embodiments, the intersection angle of the first wooden beam 1 and the second wooden beam 2 in the aforementioned cross mortise and tenon state is 90°. At this time, the lower notch 8 is opened vertically to the length direction of the first wooden beam 1, and the notch width is equal to the beam width of the second wooden beam 2; the upper notch 9 is opened vertically to the length direction of the second wooden beam 2, and the notch width is equal to the beam width of the first wooden beam 1.
[0040] It can be understood that in this cross mortise and tenon state, the first wooden beam 1 and the second wooden beam 2 are in close contact state through the cooperation of the lower notch 8 and the upper notch 9, so that the action of external load can be stably transmitted through the notch contact surface at the node to improve the reliability of the node.
[0041] In order to further improve the stability of the node, the wooden structure bidirectional beam mutual support type mortise and tenon node in the utility model further comprises:
[0042] The first steel backing plate 3 is located on the upper surface of the intersection area of the first wooden beam 1 and the second wooden beam 2.
[0043] The second steel backing plate 4 is located on the lower surface of the intersection area of the second wooden beam 2 and the first wooden beam 1.
[0044] The double-end tension bolt 5 penetrates the intersection area of the first wooden beam 1 and the second wooden beam 2, and the end of the double-end tension bolt 5 can be locked by the tension nut above the first steel backing plate 3 and below the second steel backing plate 4.
[0045] The first self-tapping screw 6 is inclinedly screwed into the node from the shoulder of the lower notch 8 of the first wooden beam 1.
[0046] The second self-tapping screw 7 is inclinedly screwed into the node from the shoulder of the upper notch 9 of the second wooden beam 2.
[0047] Wherein, the two ends of the double-end tension bolt 5 are locked by the first steel backing plate 3 and the second steel backing plate 4 respectively, and can timely transmit the load to the upper and lower surfaces of the first wooden beam 1 and the second wooden beam 2 when the external load acts, so that the pressure bearing of the node is more uniform; and the first self-tapping screw 6 and the second self-tapping screw 7 further improve the rotational stiffness of the node and reduce the structural deformation.
[0048] In the embodiment, the screwing angle of the first self-tapping screw 6 and the second self-tapping screw 7 is 45°.
[0049] In order to facilitate the installation of the double-end draw bolt 5, the lower notch 8 is provided with a first beam hole 11 on the bottom surface of the notch, and the diameter of the first beam hole 11 matches the diameter of the double-end draw bolt 5.
[0050] As the locking end of the double-end draw bolt 5, the first steel pad plate 3 is provided with a first bolt hole 31 corresponding to the first beam hole 11 and the second beam hole 21, and the diameter of the first bolt hole 31 matches the diameter of the double-end draw bolt 5.
[0051] The second steel pad plate 4 is provided with a second bolt hole 41 corresponding to the first beam hole 11 and the second beam hole 21, and the diameter of the second bolt hole 41 matches the diameter of the double-end draw bolt 5.
[0052] In the embodiment, the double-end draw bolt 5, the self-tapping screw 6 and the self-tapping screw 7 are respectively provided with four.
[0053] In the embodiment, the first beam 1 and the second beam 2 have the same beam height, and the sum of the depths of the lower notch 8 and the upper notch 9 is equal to the beam height of the first beam 1.
[0054] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.
[0055] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A timber structural two-way beam mutual support type mortise and tenon joint, characterized by, The utility model relates to a kind of wood beam jointing structure, including: First wood beam (1) and second wood beam (2) in cross mortise and tenon state, the first wood beam (1) is equipped with lower notch (8), the lower notch (8) can be closely embedded second wood beam (2), the second wood beam (2) is equipped with upper notch (9), the upper notch (9) is position corresponding with lower notch (8), and upper notch (9) can be closely embedded first wood beam (1); Further including: First steel backing plate (3), the first steel backing plate (3) is located in the upper surface of the intersection area of first wood beam (1) and second wood beam (2); Second steel backing plate (4), the second steel backing plate (4) is located in the lower surface of the intersection area of second wood beam (2) and first wood beam (1); Double-end anchor bolt (5), the double-end anchor bolt (5) is passed through first wood beam (1) and second wood beam (2) in the intersection area of two, and the end of the double-end anchor bolt (5) can be locked by anchor nut on the first steel backing plate (3) and under the second steel backing plate (4); First self-tapping screw (6), the first self-tapping screw (6) is inclinedly screwed into node from the shoulder of the lower notch (8) of the first wood beam (1); Second self-tapping screw (7), the second self-tapping screw (7) is inclinedly screwed into node from the shoulder of the upper notch (9) of the second wood beam (2).
2. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The lower notch (8) is equipped with first wood beam through-hole (11) on notch bottom surface, the hole diameter of the first wood beam through-hole (11) is matched with the rod diameter of double-end anchor bolt (5).
3. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The upper notch (9) is equipped with second wood beam through-hole (21) on notch bottom surface, the hole diameter of the second wood beam through-hole (21) is matched with the rod diameter of double-end anchor bolt (5).
4. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The first steel backing plate (3) is equipped with first bolt hole (31) corresponding with first wood beam through-hole (11) and second wood beam through-hole (21), the hole diameter of the first bolt hole (31) is matched with the rod diameter of double-end anchor bolt (5).
5. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The second steel backing plate (4) is equipped with second bolt hole (41) corresponding with first wood beam through-hole (11) and second wood beam through-hole (21), the hole diameter of the second bolt hole (41) is matched with the rod diameter of double-end anchor bolt (5).
6. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The double-end anchor bolt (5), self-tapping screw (6) and self-tapping screw (7) are respectively provided with four.
7. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The beam height of the first wood beam (1) and second wood beam (2) is equal, and the sum of the depth of the lower notch (8) and upper notch (9) is equal to the beam height of the first wood beam (1).
8. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The intersection angle of the first wood beam (1) and second wood beam (2) is 90 °.
9. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 8, characterized in that, The lower notch (8) is equipped perpendicularly to the length direction of the first wood beam (1), and notch width is equal to the beam width of the second wood beam (2);The upper notch (9) is equipped perpendicularly to the length direction of the second wood beam (2), and notch width is equal to the beam width of the first wood beam (1).
10. The timber structural bi-directional beam mutual-supporting mortise and tenon joint according to claim 1, characterized in that, The screwing angle of the first self-tapping screw (6) and the second self-tapping screw (7) is 45 °.