Green low-carbon wood structure hidden beam-column joint

Abstract

The utility model relates to the technical field of wood structure assembly, and provides a green low-carbon wood structure hidden beam-column joint which comprises a wood column, a wood beam and a connecting assembly. The connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece comprises a first vertical plate and a first transverse plate, a plurality of screw rods are fixed to the first transverse plate, and the screw rods are distributed in the width direction of the first vertical plate; the second connecting piece comprises a second vertical plate and a second transverse plate, and a mounting hole matched with the screw rod is formed in the second transverse plate; a groove is formed in the wooden column or the wooden beam, the second transverse plate is erected on the first transverse plate, the top end of the screw penetrates out of the mounting hole, a nut is screwed on the portion, penetrating out of the mounting hole, of the screw, and the first connecting piece, the second connecting piece and the screw are all located in the groove. The wood structure is simple in structure and low in production cost, does not damage the aesthetic function of the wood structure, and is particularly suitable for a single-layer wood structure or a temporary wood structure.

Description

A green and low-carbon concealed beam-column joint for wood structures Technical Field

[0001] This application relates to the field of wood structure assembly technology, and in particular to a green and low-carbon concealed beam-column joint for wood structures. Background Technology

[0002] Traditional timber frame beam-column joints typically use mortise and tenon joints. However, over time, the wood is susceptible to moisture, rot, and insect infestation, requiring frequent anti-corrosion treatments and incurring high costs for localized repairs. Furthermore, the traditional mortise and tenon structure is quite complex, demanding a certain level of skill and experience from the craftsmen. Modern improved timber frame beam-column joints mostly utilize metal bracing or gussets combined with bolts or screws. However, these metal connectors are generally exposed, failing to achieve concealed connections and compromising the aesthetics of traditional timber structures. In addition, existing technologies offer some joint constructions that achieve concealed connections without compromising the aesthetics of the timber structure. However, these joint constructions are complex and costly to produce, suitable only for timber structures with high load-bearing requirements. Single-story or temporary timber structures have lower load-bearing requirements; using the aforementioned complex concealed joint constructions would be overkill and significantly increase project costs.

[0003] In summary, there is an urgent need to provide a concealed beam-column joint that is simple in construction and suitable for single-story or temporary timber structures. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a green and low-carbon concealed beam-column joint for wood structures. It features an ingenious design, simple structure, and low production cost. This application does not compromise the aesthetic function of the wood structure and is particularly suitable for single-story or temporary wood structures. The technical solution adopted in this application is as follows:

[0005] A green and low-carbon concealed beam-column joint for wood structures includes: wooden columns, wooden beams, and connecting components;

[0006] The connecting assembly includes a first connector and a second connector. The first connector includes a first vertical plate and a first horizontal plate. The first vertical plate is vertically arranged, and the first horizontal plate is horizontally arranged. One end of the first horizontal plate is connected to the upper end of the first vertical plate. A plurality of screws are fixed on the first horizontal plate. The screws are perpendicular to the first horizontal plate and protrude from the upper side of the first horizontal plate. The plurality of screws are distributed along the width direction of the first vertical plate. The second connector includes a second vertical plate and a second horizontal plate. The second vertical plate is vertically arranged, and the second horizontal plate is horizontally arranged. One end of the second horizontal plate is connected to the upper end of the second vertical plate. The second horizontal plate is provided with mounting holes adapted to the screws.

[0007] A slot is provided on one side of the top of the wooden column, and the slot extends vertically upward to the top of the wooden column. The first vertical plate of the first connector is screwed into the slot, and the second vertical plate of the second connector is screwed into the end face of the wooden beam; or, a slot is provided at one end of the wooden beam connected to the wooden column, and the slot extends vertically through the end face of the wooden beam. The second vertical plate of the second connector is screwed into the slot, and the first vertical plate of the first connector is screwed into one side of the top of the wooden column.

[0008] The second horizontal plate is placed on top of the first horizontal plate and the top end of the screw protrudes through the mounting hole. A nut is screwed onto the part of the screw that protrudes through the mounting hole. The first connector, the second connector, and the screw are all located within the slot.

[0009] This node structure is simple and low in production cost. The first connector, second connector, and screws are all located within the slot. When viewed from a low angle, only the wooden beams and columns are visible, and the connecting components are not. This achieves the concealment of the connecting components, thus preserving the aesthetic function of the wooden structure. The connection between the first and second connectors in this node is achieved solely through the screw connection between the first and second horizontal plates. The force transmission between the first and second connectors is also achieved solely through the screws between the first and second horizontal plates. The force transmission path is simple and clear, making it particularly suitable for single-layer or temporary wooden structures. By distributing several screws on the first horizontal plate along the width of the first vertical plate, and providing corresponding mounting holes on the second horizontal plate, the relative rotation of the first and second horizontal plates on the horizontal plane is restricted while ensuring the effectiveness of the screw force. This also controls the depth of the slot, preventing it from becoming too deep.

[0010] In some embodiments, the second connector further includes two second baffles, which are vertically arranged and connected to the two ends of the second vertical plate in the width direction. The second horizontal plate and the two second baffles are located on the same side of the second vertical plate, and the second vertical plate and the two second baffles enclose an opening, in which the first connector is located.

[0011] By setting two second baffles, during the process of connecting the wooden beam with the second connector to the wooden post with the first connector, the two second baffles are located on opposite sides of the first connector, that is, the first connector is located inside the opening. This can avoid large-scale relative displacement between the first connector and the second connector along the width direction of the first vertical plate (or the second vertical plate) during the connection process. The two second baffles (or openings) play a vertical guiding role during node assembly, improving the accuracy of the screw entering the mounting hole.

[0012] In some implementations, the size of the opening gradually increases from the bottom outwards.

[0013] By designing the opening to gradually expand outward from the bottom, the second connector can be easily fitted onto the first connector in the horizontal direction (lateral direction), and the opening plays a guiding role in the horizontal direction (lateral direction) during node assembly.

[0014] In some embodiments, the first connector further includes two first baffles, which are vertically arranged and connected to the two ends of the first vertical plate in the width direction, respectively. The first horizontal plate and the two first baffles are located on the same side of the first vertical plate.

[0015] In some embodiments, the top ends of the two first baffles are respectively connected to the two ends of the first horizontal plate; and / or, the top ends of the two second baffles are respectively connected to the two ends of the second horizontal plate.

[0016] By connecting the tops of the two first baffles to the two ends of the first horizontal plate, the integrity of the first connector is ensured, and its load-bearing capacity and resistance to deformation are improved. Similarly, by connecting the tops of the two second baffles to the two ends of the second horizontal plate, the integrity of the second connector is ensured, and its load-bearing capacity and resistance to deformation are improved.

[0017] In some embodiments, the first vertical plate has a plurality of through holes, and the wooden post has blind holes corresponding to the through holes. The first vertical plate is screwed to the wooden post by transverse bolts that pass through the through holes and the blind holes in sequence.

[0018] In some embodiments, the first vertical plate has several perforations, the wooden post has through holes corresponding to the perforations, the end of the through hole away from the first vertical plate is a countersunk hole, a transverse bolt is inserted through the perforations and the through hole, the head of the transverse bolt is in contact with the first vertical plate, the screw portion of the transverse bolt is completely located in the through hole, the end of the transverse bolt is located in the countersunk hole, a nut is screwed onto the end of the transverse bolt, and the end of the countersunk hole away from the first vertical plate is sealed by a sealing plate.

[0019] This application provides a green and low-carbon concealed beam-column joint for wood structures, which has at least one of the following beneficial effects:

[0020] 1. This application provides a green and low-carbon concealed beam-column joint for wooden structures. This joint has a simple structure and low production cost. The first connector, second connector, and screws are all located within the slot. When viewed from a low angle, only the wooden beams and columns are visible, and the connecting components are not. This achieves concealment of the connecting components, thus preserving the aesthetic function of the wooden structure. The connection between the first and second connectors is achieved solely through the screw connection between the first and second horizontal plates. Force transmission between the first and second connectors is also achieved solely through the screw connection between the first and second horizontal plates. The force transmission path is simple and clear, making it particularly suitable for single-layer or temporary wooden structures. By distributing several screws on the first horizontal plate along the width of the first vertical plate, and providing corresponding mounting holes on the second horizontal plate, the relative rotation of the first and second horizontal plates on the horizontal plane is restricted while ensuring the effectiveness of the screw force. The depth of the slot is also controlled, preventing excessively deep slots.

[0021] 2. The green and low-carbon concealed beam-column joint for wood structure provided in this application, by setting two second baffles, during the process of connecting the wooden beam with the second connector to the wooden column with the first connector, the two second baffles are located on opposite sides of the first connector, that is, the first connector is located in the opening. This can avoid large-scale relative displacement between the first connector and the second connector along the width direction of the first vertical plate (or the second vertical plate) during the connection process. The two second baffles (or openings) play a vertical guiding role during the assembly of the joint, improving the accuracy of the screw entering the mounting hole.

[0022] 3. The green and low-carbon wood structure concealed beam-column joint provided in this application, by designing the size of the opening to gradually expand from the bottom outward, facilitates the second connector to be fastened to the first connector in the horizontal direction (lateral direction), and the opening plays a guiding role in the horizontal direction (lateral direction) during the assembly of the joint.

[0023] 4. This application provides a green and low-carbon concealed beam-column joint for wood structures. By connecting the top ends of two first baffles to the two ends of a first horizontal plate, the integrity of the first connector is ensured, and the load-bearing capacity and deformation resistance of the first connector are improved. By connecting the top ends of two second baffles to the two ends of a second horizontal plate, the integrity of the second connector is ensured, and the load-bearing capacity and deformation resistance of the second connector are improved. Attached Figure Description

[0024] The preferred embodiments will be explained below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further illustrate the above-mentioned characteristics, technical features, advantages, and implementation methods of a green and low-carbon concealed beam-column joint in a wood structure:

[0025] Figure 1 is an exploded view of an embodiment of node (grooving on a wooden post) of this application;

[0026] Figure 2 is a schematic diagram of the node (grooving on the wooden column) of this application viewed from a high angle;

[0027] Figure 3 is a schematic diagram of the nodes of this application viewed from a low angle;

[0028] Figure 4 is a schematic diagram of the nodes in this application after the wooden pillars and beams are hidden;

[0029] Figure 5 is a diagram showing the first connector installed on the wooden post (the wooden post has a slot).

[0030] Figure 6 is a structural schematic diagram of the first connector;

[0031] Figure 7 shows the state of the second connector installed on the wooden beam;

[0032] Figure 8 is a structural schematic diagram of the second connector;

[0033] Figure 9 is a diagram showing the state of the first connector installed on the wooden post in another embodiment of the node of this application;

[0034] Figure 10 shows the unassembled state of another embodiment of the node in this application (slots are provided on the wooden beam).

[0035] Explanation of icon numbers:

[0036] Wooden post 1, slot 11, countersunk hole 12, wooden beam 2, first connector 3, first vertical plate 31, first horizontal plate 32, screw 33, first baffle 34, second connector 4, second vertical plate 41, second horizontal plate 42, mounting hole 43, second baffle 44, opening 45, nut 5, horizontal bolt 6. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0038] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Referring to Figures 1-10, this application provides a green and low-carbon concealed beam-column joint for wooden structures, including: a wooden column 1, a wooden beam 2, and a connecting assembly; the connecting assembly includes a first connector 3 and a second connector 4. The first connector 3 includes a first vertical plate 31 and a first horizontal plate 32. The first vertical plate 31 is vertically arranged, and the first horizontal plate 32 is horizontally arranged. One end of the first horizontal plate 32 is connected to the upper end of the first vertical plate 31. Several screws 33 are fixed on the first horizontal plate 32. The screws 33 are perpendicular to the first horizontal plate 32 and are exposed on the upper side of the first horizontal plate 32. The several screws 33 are distributed along the width direction of the first vertical plate 31; the second connector 4 includes a second vertical plate 41 and a second horizontal plate 42. The second vertical plate 41 is vertically arranged, and the second horizontal plate 42 is horizontally arranged. One end of the second horizontal plate 42 is connected to the upper end of the second vertical plate 41. The second horizontal plate 42 is provided with mounting holes 43 that are adapted to the screws 33.

[0043] Referring to Figures 1, 2, 5, 7, and 9, a slot 11 is provided on one side of the top of the wooden column 1. The slot 11 extends vertically upward to the top of the wooden column 1. The first vertical plate 31 of the first connector 3 is screwed into the slot 11, and the second vertical plate 41 of the second connector 4 is screwed into the end face of the wooden beam 2. Alternatively, referring to Figure 10, the slot 11 is not provided on the wooden column 1, but is provided at the end where the wooden beam 2 is connected to the wooden column 1. The slot 11 extends vertically through the end face of the wooden beam 2. The second vertical plate 41 of the second connector 4 is screwed into the slot 11, and the first vertical plate 31 of the first connector 3 is screwed into one side of the top of the wooden column 1.

[0044] The second horizontal plate 42 is placed on the first horizontal plate 32 and the top of the screw 33 protrudes through the mounting hole 43. The part of the screw 33 that protrudes through the mounting hole 43 is screwed with a nut 5. The first connector 3, the second connector 4 and the screw 33 are all located in the slot 11.

[0045] It should be noted that when the slot 11 is set at one end of the wooden beam 2, after the wooden beam 2 and the wooden column 1 are connected, a sealing plate is needed to cover the opening at the bottom of the slot 11. The sealing plate can be made of wood or other materials. Preferably, the surface of the sealing plate is the same color as the surface of the wooden beam 2. More preferably, the surface of the sealing plate has the same texture as the surface of the wooden beam 2.

[0046] It is easy to understand that this node has a simple structure and low production cost. The first connector 3, the second connector 4, and the screw 33 are all located within the slot 11. When viewing the node from a low angle, only the wooden beam 2 and the wooden column 1 are visible, and the connecting components are not visible. In other words, the connecting components are hidden, thus preserving the aesthetic function of the wooden structure. The connection between the first connector 3 and the second connector 4 in this node is achieved solely through the screw connection between the first horizontal plate 32 and the second horizontal plate 42. The force transmission between the first connector 3 and the second connector 4 is also achieved solely through the screw connection between the first horizontal plate 32 and the second horizontal plate 42. The force transmission path is simple and clear, making it particularly suitable for single-layer wooden structures or temporary wooden structures. By distributing a number of screws 33 on the first horizontal plate 32 along the width direction of the first vertical plate 31, and providing mounting holes 43 on the second horizontal plate 42 corresponding to the screws 33, the effective force on the screws can be ensured while restricting the relative rotation of the first horizontal plate 32 and the second horizontal plate 42 on the horizontal plane. The depth of the slot 11 can be controlled to avoid the slot 11 from being too deep.

[0047] Referring to Figures 4, 7, and 8, in one embodiment, the second connector 4 further includes two second baffles 44, which are vertically arranged and connected to the two ends of the second vertical plate 41 in the width direction. The second horizontal plate 42 and the two second baffles 44 are located on the same side of the second vertical plate 41. The second vertical plate 41 and the two second baffles 44 enclose an opening 45, and the first connector 3 is located inside the opening 45.

[0048] It is easy to understand that by setting two second baffles 44, during the process of connecting the wooden beam 2 with the second connector 4 and the wooden column 1 with the first connector 3, the two second baffles 44 are located on opposite sides of the first connector 3, that is, the first connector 3 is located inside the opening 45. This can avoid large-scale relative displacement between the first connector 3 and the second connector 4 along the width direction of the first vertical plate 31 (or the second vertical plate 41) during the connection process. The two second baffles 44 (or openings 45) play a vertical guiding role during node assembly, improving the accuracy of the screw 33 entering the mounting hole 43.

[0049] Referring to Figures 4, 7, and 8, in one embodiment, the size of the opening 45 gradually increases from the bottom outwards. It is worth noting that by designing the size of the opening 45 to gradually increase from the bottom outwards, it is convenient for the second connector 4 to be fitted onto the first connector 3 in the horizontal direction (lateral direction), and the opening 45 plays a guiding role in the horizontal direction (lateral direction) during node assembly.

[0050] Referring to Figures 1-7, in one embodiment, in some implementations, the first connector 3 further includes two first baffles 34, the first baffles 34 are arranged vertically, the two first baffles 34 are respectively connected to the two ends in the width direction of the first vertical plate 31, and the first horizontal plate 32 and the two first baffles 34 are located on the same side of the first vertical plate 31.

[0051] Referring to Figures 1, 4-8, in one embodiment, in some implementations, the top ends of the two first baffles 34 are respectively connected to the two ends of the first horizontal plate 32; and / or, the top ends of the two second baffles 44 are respectively connected to the two ends of the second horizontal plate 42.

[0052] Understandably, by connecting the tops of the two first baffles 34 to the two ends of the first horizontal plate 32 respectively, the integrity of the first connector 3 is ensured, and the load-bearing capacity and deformation resistance of the first connector 3 are improved. Similarly, by connecting the tops of the two second baffles 44 to the two ends of the second horizontal plate 42 respectively, the integrity of the second connector 4 is ensured, and the load-bearing capacity and deformation resistance of the second connector 4 are improved.

[0053] Referring to Figures 1 and 5, in one embodiment, the first vertical plate 31 is provided with a plurality of through holes (not shown in the figures), and the wooden column 1 is provided with blind holes corresponding to the through holes (not shown in the figures). The first vertical plate 31 is screwed to the wooden column 1 by transverse bolts 6 that are sequentially inserted into the through holes and blind holes.

[0054] Referring to Figures 5 and 9, in one embodiment, the first vertical plate 31 has several through holes (not shown in the figures), and the wooden post 1 has through holes corresponding to the through holes. The end of the through hole away from the first vertical plate 31 is a countersunk hole 12. A transverse bolt 6 passes through the through holes and the through holes. The head of the transverse bolt 6 contacts the first vertical plate 31, and the screw 33 portion of the transverse bolt 6 is completely located in the through hole. The end of the transverse bolt 6 is located in the countersunk hole 12, and a nut 5 is screwed onto the end of the transverse bolt 6. The end of the countersunk hole 12 away from the first vertical plate 31 is sealed by a sealing plate (not shown in the figures). The sealing plate can be made of wood or other materials. Preferably, the surface of the sealing plate is the same color as the surface of the wooden post 1, and more preferably, the surface of the sealing plate has the same texture as the surface of the wooden post 1. After the sealing plate seals the countersunk hole 12, the transverse bolt 6 is hidden in the through hole, and the connecting components are not visible from the bottom of the node, thus achieving the concealment of the node structure.

[0055] It is understood that in this embodiment, the transverse bolt 6 is a tie bolt, which improves the connection strength between the first connector 3 and the wooden post 1 compared to the non-tie bolt solution in the aforementioned embodiment (the embodiment in which the wooden post 1 has a blind hole).

[0056] The assembly process of this application node is as follows: First, install the first connector 3 into the slot 11 of the wooden column 1, and install the second connector 4 into one end of the wooden beam 2; then fix the wooden column 1 to the designed position; next, lift or raise the wooden beam 2 so that the wooden beam 2 is completely higher than the wooden column 1 or the height of the second horizontal plate 42 is higher than the height of the screw 33 on the first horizontal plate 32; then adjust the relative position of the first connector 3 and the second connector 4 so that the screw 33 corresponds to the mounting hole 43; finally, lower the wooden beam 2, and the screw 33 passes through the mounting hole 43. Tighten the nut 5 onto the screw 33, and the connection between the wooden beam 2 and the wooden column 1 is completed.

[0057] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A green and low-carbon concealed beam-column joint for wood structures, characterized in that, include: Wooden pillars, wooden beams, and connecting components; the connecting components include a first connector and a second connector. The first connector includes a first vertical plate and a first horizontal plate. The first vertical plate is vertically oriented, and the first horizontal plate is horizontally oriented. One end of the first horizontal plate is connected to the upper end of the first vertical plate. Several screws are fixed to the first horizontal plate, the screws are perpendicular to the first horizontal plate and protrude from the upper side of the first horizontal plate, and the screws are distributed along the width direction of the first vertical plate. The second connector includes a second vertical plate and a second horizontal plate. The second vertical plate is vertically oriented, and the second horizontal plate is horizontally oriented. One end of the second horizontal plate is connected to the upper end of the second vertical plate, and the second horizontal plate has mounting holes adapted to the screws. A slot is provided on one side of the top of the wooden column, the slot extending vertically upward to the top of the wooden column. The first vertical plate of the first connector is screwed into the slot, and the second vertical plate of the second connector is screwed into the end face of the wooden beam; or, a slot is provided at the end of the wooden beam connected to the wooden column, the slot penetrating the end face of the wooden beam vertically, the second vertical plate of the second connector is screwed into the slot, and the first vertical plate of the first connector is screwed into one side of the top of the wooden column; the second horizontal plate is placed on the first horizontal plate, and the top of the screw protrudes through the mounting hole, the portion of the screw protruding from the mounting hole is screwed with a nut, and the first connector, the second connector, and the screw are all located within the slot.

2. The green and low-carbon concealed beam-column joint for wood structures according to claim 1, characterized in that, The second connector further includes two second baffles, which are arranged vertically and are respectively connected to the two ends of the second vertical plate in the width direction. The second horizontal plate and the two second baffles are located on the same side of the second vertical plate. The second vertical plate and the two second baffles enclose an opening, and the first connector is located inside the opening.

3. The green and low-carbon concealed beam-column joint for wood structures according to claim 2, characterized in that, The size of the opening gradually increases from the bottom outwards.

4. The green and low-carbon concealed beam-column joint for wood structures according to claim 3, characterized in that, The first connector further includes two first baffles, which are arranged vertically and are respectively connected to the two ends of the width direction of the first vertical plate. The first horizontal plate and the two first baffles are located on the same side of the first vertical plate.

5. A green and low-carbon concealed beam-column joint for wood structures according to claim 4, characterized in that, The top ends of the two first baffles are respectively connected to the two ends of the first horizontal plate; and / or, the top ends of the two second baffles are respectively connected to the two ends of the second horizontal plate.

6. A green and low-carbon concealed beam-column joint for wood structures according to any one of claims 1-5, characterized in that, The first vertical plate has several through holes, and the wooden post has blind holes corresponding to the through holes. The first vertical plate is screwed to the wooden post by transverse bolts that are sequentially inserted through the through holes and the blind holes.

7. A green and low-carbon concealed beam-column joint for wood structures according to any one of claims 1-5, characterized in that, The first vertical plate has several perforations, and the wooden post has through holes corresponding to the perforations. The end of the through hole away from the first vertical plate is a countersunk hole. A transverse bolt is inserted through the perforations and the through hole. The head of the transverse bolt is in contact with the first vertical plate. The bolt portion of the transverse bolt is completely located in the through hole. The end of the transverse bolt is located in the countersunk hole. A nut is screwed onto the end of the transverse bolt. The end of the countersunk hole away from the first vertical plate is blocked by a sealing plate.

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