Fabricated wood structure node connecting structure and construction method

Abstract

The invention relates to an assembly type wood structure joint connecting structure and a construction method, the assembly type wood structure joint connecting structure comprises a supporting seat, a connecting seat and a butt joint assembly, and the connecting seat is assembled on the supporting seat and is locked and fixed; a cavity is formed in the connecting base, flexible bodies are fixedly installed on the side walls of the periphery in the cavity, the middles of the four flexible bodies jointly define a deformation area in the cavity, and the width of the upper side and the width of the lower side in the deformation area are larger than the width of the middle. The connecting base is further provided with a vertically-through limiting groove, the limiting groove is communicated with the deformation area, when the upper wedge-shaped body and the lower wedge-shaped body are symmetrically locked in the deformation area in the vertical direction through the locking screw rod, the inclined faces on the wedge-shaped bodies and the flexible bodies are extruded in a matched mode, meanwhile, the upper connecting steel plate and the lower connecting steel plate are clamped in the limiting groove, and a connecting part is formed outwards. The structure is simple, construction is convenient, the connection strength between the nodes is high, and the overall performance of a wood structure building can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wooden structure building construction, and particularly relates to an assembled wooden structure node connection structure and a construction method thereof. Background Art

[0002] An assembled wooden structure is a building form assembled on-site at the construction site from prefabricated components such as beams, columns, prefabricated walls, prefabricated floor slabs, and prefabricated roof slabs, which are fabricated in a factory. With the rapid development of modern wooden structure technology, in addition to common low-rise buildings and garden ornaments, it is increasingly developing towards large-span, multi-story and high-rise buildings. Therefore, glued laminated timber, as the basic structural material of heavy wooden structures, has become an ideal choice for constructing multi-story and high-rise wooden structures and large-span wooden structures due to its excellent strength-to-weight ratio and processing performance.

[0003] However, there are some deficiencies in the existing assembled wooden structure node connection technologies. As a natural material, wood is prone to shrinkage and deformation in a humid environment. This characteristic requires that the node connection design must have good deformation adaptability to ensure that while the wood deforms, the node connection strength is not affected, preventing wood splitting, node failure, and a decrease in shear bearing capacity. Therefore, how to effectively adapt to the deformation of wood while ensuring the node connection strength has become a key issue in the node connection design of heavy wooden structures. In addition, traditional connection methods such as simple dowels and expansion bolts often cannot be applied to heavy wooden structures due to insufficient strength or easy wood splitting. When using metal connectors such as bolts and steel plates during the installation process, they are prone to vibration and deformation under the influence of their own weight and the impact force during installation, which not only affects the service stability of the structure but may also reduce its seismic performance.

[0004] Based on this, it is necessary to study an assembled wooden structure node connection structure and a construction method thereof. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an assembled wooden structure node connection structure and a construction method thereof, which effectively solve the problems of weak adaptability to wood deformation, low node connection strength, and decreased structural stability caused by vibration and deformation of connectors in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: An assembled wooden structure node connection structure includes a support base, a connection base, and a docking component. The connection base is assembled on the support base and locked and fixed. A cavity is provided in the connection base, and flexible bodies are fixedly installed on the surrounding side walls of the cavity. The middle parts of the four flexible bodies jointly enclose a deformation area in the cavity, and the width of the upper and lower sides in the deformation area is greater than the width of the middle part. A limiting groove penetrating up and down is also opened on the connection base, and the limiting groove communicates with the deformation area. The docking component includes an upper wedge-shaped member, a lower wedge-shaped member, and a locking screw. The upper wedge-shaped member and the lower wedge-shaped member each include a wedge-shaped body and a connecting steel plate. The connecting steel plate is fixed on one side wall of the wedge-shaped body, and mounting holes are evenly opened on the connecting steel plate. When the upper and lower wedge-shaped bodies are symmetrically locked in the deformation area along the vertical direction through the locking screw, the inclined surface on the wedge-shaped body is adapted to be squeezed with the flexible body, and at the same time, the upper and lower connecting steel plates are clamped in the limiting groove and form a connecting part outward.

[0007] Further, a central groove is penetrated through the upper and lower top surfaces of the connection base, and the wedge-shaped body passes through the central groove and enters the deformation area.

[0008] Further, a sinking groove is formed on the periphery of the central groove. A backing plate is fixed on the top surface of the wedge-shaped body. After the wedge-shaped body is adaptively installed in the support base, the backing plate is clamped in the sinking groove to seal the upper and lower sides of the support base.

[0009] Further, a column array is evenly distributed in the sinking groove, and the height of each column is less than the depth of the sinking groove. After the wedge-shaped body is adaptively installed in the support base, the upper and lower backing plates are respectively clamped in the sinking grooves at corresponding positions, and their bottom surfaces press against the columns.

[0010] Further, three side walls of the wedge-shaped body are inclined structures, and inclined surfaces are also provided on the corresponding flexible bodies located in the cavity. After the wedge-shaped body is installed in the deformation area, the inclined surfaces on its three sides are respectively adapted to contact the flexible bodies at corresponding positions.

[0011] Further, a rubber pad is fixedly laid at the bottom of the wedge-shaped body. The two side wedge-shaped bodies are symmetrically installed in the deformation area. In the initial state, there is a gap between the upper and lower wedge-shaped bodies. When the wooden beam undergoes vertical deformation, the adjacent surfaces of the upper and lower wedge-shaped bodies can be squeezed and abutted together.

[0012] Further, the support base is of a U-shaped structure, and its opening faces the direction of the connection base. Bolt holes are evenly opened on the bottom side wall of the support base for bolt connection with the wooden beam.

[0013] Further, a fixing block is provided on the front side of the connection base. The fixing block is inserted into the fixing seat in a matching manner. Reinforcing plates are symmetrically installed on the connection base on both the upper and lower sides of the fixing block, so that the front side of the connection base is in a mountain-shaped structure, and the connection base and the support base are locked and fixed through a screw.

[0014] Furthermore, a partition plate is fixed at the center of the cavity of the support seat, a screw hole is opened in the middle of the partition plate, and the bottom surfaces of the upper and lower wedge-shaped bodies are in contact with the upper and lower surfaces of the partition plate respectively.

[0015] The present invention also provides a method for constructing a prefabricated wood structure node, comprising the following steps: Step 1: Fix the support base on the side wall of the wooden column by bolting; Step 2: Insert the fixing block on the front side of the connecting seat into the supporting seat and fix the two together with bolts; Step 3: Insert the wedge-shaped body into the cavity in the connecting seat from the upper and lower sides respectively, until the pad on the upper wedge-shaped body fits into the sinking groove at the top of the connecting seat, and the pad on the lower wedge-shaped body fits into the sinking groove at the bottom of the connecting seat; Step 4: Pass the locking screw up and down and lock the connecting seat and the two sets of wedge-shaped bodies together; Step 5: Pre-open connection grooves on the wooden beams to match the connection steel plates; Step 6: Insert the connecting groove on the wooden beam into the connecting steel plate, ensure that the upper and lower surfaces of the wooden beam are flush with the connecting seat, and finally fix the connecting steel plate and the wooden beam with bolts.

[0016] The beneficial effect of the above technical solution is: the prefabricated wooden structure node connection structure and construction method provided by the present invention, by developing a new type of prefabricated wooden structure node connection structure, can ensure the connection strength at the node while achieving effective adaptation to the deformation and extension of wood, thereby improving the overall performance of the wooden structure building, while effectively improving the overall stiffness and self-resetting ability of the structure, and avoiding the decrease in structural stability due to vibration and deformation of the connecting parts.

[0017] The square cavity structure of the connecting seat of the present invention and the arrangement of the flexible body make the force transmission between the wooden beam and the wooden column more effective. After the wedge-shaped body is installed in the deformation zone, the surrounding flexible bodies can wrap and squeeze the surrounding side of the wedge-shaped body. As the wedge-shaped body moves toward the middle of the deformation zone, the degree of squeezing between the wedge-shaped body and the flexible body becomes tighter and tighter, thereby effectively transmitting the shear force and pressure between the wooden beam and the wooden column, and improving the bearing capacity of the node.

[0018] The flexible body will deform when subjected to external forces, but the elasticity and recovery properties of its material enable it to quickly return to its original shape after deformation. This allows the flexible body to provide a certain degree of bending stiffness when the node is subjected to bending moment, enhancing the overall stiffness of the node, thereby better transmitting the bending moment and improving the stability of the structure. In addition, under the action of external forces such as earthquakes, the flexible body can absorb and dissipate part of the energy, reduce the impact on the nodes of wooden beams and columns, and improve the seismic performance of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic structural diagram of an embodiment of the present invention; Figure 2 Explosion structural diagram of an embodiment of the present invention; Figure 3 Cross-sectional structural diagram of an embodiment of the present invention; Figure 4 Schematic implementation structure diagram of the connecting seat; Figure 5 Schematic implementation structure diagram of an upper wedge member; Figure 6 Another schematic implementation structure diagram of the connecting seat; Figure 7 Another schematic implementation structure diagram of the present invention; Figure 8 Another schematic implementation structure diagram of the wedge body.

[0020] Reference numerals: 1 - wooden column, 2 - wooden beam, 3 - support seat, 31 - bolt hole, 4 - connecting seat, 41 - fixing block, 42 - central groove, 43 - sinking groove, 44 - limiting groove, 45 - flexible body, 46 - reinforcing plate, 47 - deformation zone, 5 - docking assembly, 51 - upper wedge member, 511 - wedge body, 512 - connecting steel plate, 513 - mounting hole, 514 - backing plate 52 - lower wedge member, 53 - locking screw, 54 - locking nut, 6 - column, 7 - cushion layer, 8 - partition plate. Detailed implementation manners

[0021] The present invention will be further described in detail below in conjunction with the drawings and specific implementation manners: Example 1, this example aims to provide an assembled wooden structure node connection structure, which is mainly used for the node connection between wooden beams and wooden columns in assembled wooden structures. In the design and construction process of existing heavy wooden structures, the node connection problem is particularly prominent. Aiming at the problems that the existing node connections are prone to wood splitting due to insufficient strength, and the nodes are deformed or the shear bearing capacity is reduced due to the influence of their own weight and the impact force during installation, etc., this example provides an assembled wooden structure node connection structure. By developing a new type of assembled wooden structure node connection structure, while ensuring the connection strength at the node, it can effectively adapt to the deformation and extension of the wood, thereby improving the overall performance of the wooden structure building, and at the same time effectively improving the overall stiffness and self-resetting ability of the structure, and avoiding the decline of structural stability caused by the vibration and deformation of the connecting parts.

[0022] Such as Figures 1-6As shown in the figure, the prefabricated wooden structure joint connection structure provided in this embodiment includes a support base 3, a connection base 4, and a docking component 5. The support base 3 has a U-shaped structure with its opening facing the outside of the wooden column 1. Bolt holes 31 are evenly formed on the side walls of the support base 3 for bolt connection with the wooden beam 2. A fixing block 41 is provided on the front side of the connection base 4, and the fixing block 41 is fitted and inserted into the inner cavity of the U-shaped fixing base, and then the support base 3 and the fixing block 41 can be locked and fixed together vertically by bolts. The bolt holes 31 on the support base 3 can be countersunk screw holes, so that after the fixing block 41 on the connection base 4 is fitted and installed in the support base 3, the outer end surface of the fixing block 41 can be in contact and fixed with the inner wall of the support base 3. In actual application, reinforcing plates 46 can also be symmetrically extended on the connection base 4 on the upper and lower sides of the fixing block 41, so that the front side of the connection base 4 has a mountain-shaped structure. After the support base 3 and the connection base 4 are fitted and installed together and then fixed by bolts, the connection base 4 can be assembled on the support base 3, further improving the connection stability and structural strength between the support base 3 and the connection base 4.

[0023] As Figures 2-4 shown, in this embodiment, a square cavity structure is provided in the connection base 4. Flexible bodies 45 are fixedly installed on the side walls around the cavity. The four flexible bodies 45 together enclose a deformation area 47 in the middle of the cavity, and the width of the upper and lower sides in the deformation area 47 is greater than the width of the middle part. A limiting groove 44 penetrating up and down is also formed on the connection base 4, and the limiting groove 44 communicates with the deformation area 47.

[0024] Furthermore, in this embodiment, the flexible body 45 in the square cavity can be a rubber body structure with a horizontally trapezoidal cross-section. The flexible body 45 structures fixed at the front, left, and right positions in the cavity are the same, while the flexible body 45 fixed on the rear side wall in the cavity is a three-dimensional structure. Thus, after the wedge body 511 is installed in the deformation area 47, the surrounding flexible bodies 45 can wrap and squeeze the periphery of the wedge body 511, and the inclined surfaces on each flexible body 45 can also be adapted to the inclined surface structure of the wedge body 511. Therefore, as the wedge body 511 moves towards the middle of the deformation area 47, the degree of extrusion between the wedge body 511 and the flexible body 45 becomes closer and closer. This close extrusion effect can effectively transmit the shear force and pressure between the wooden beam 2 and the wooden column 1, improving the bearing capacity of the joint.

[0025] As Figure 1 and 4 shown, a central groove 42 is penetrated through the upper and lower top surfaces of the connection base 4. The inner diameter width of the central groove 42 is adapted to the wedge body 511 of the docking component 5. The wedge body 511 can enter the deformation area 47 through the central groove 42. Sinking grooves 43 are correspondingly formed on the outer peripheral sides of the upper and lower central grooves 42, and the sinking grooves 43 are used for assembling the backing plates 514 on the wedge body 511.

[0026] With the structural arrangement of the connecting seat 4 in this embodiment, when the wood undergoes longitudinal deformation, the flexible body 45 can adapt to the deformation direction of the wood through its own deformation. At the same time, when the wood undergoes transverse deformation, the flexible body 45 can also undergo corresponding deformation in the cavity, thus effectively adapting to the multi-directional deformation of the wood and avoiding wood splitting and joint failure caused by inconsistent deformation. Moreover, the material of the flexible body 45, such as a rubber body, has good ductility and buffering properties. When the wood deforms, the flexible body 45 can extend and buffer the deformation force of the wood to a certain extent, reducing the impact on the connecting piece and stress concentration, ensuring that the joint can maintain a stable connection state during the deformation process of the wood and extending the service life of the structure.

[0027] As Figure 3 and Figure 5 shown, in this embodiment, the docking assembly 5 includes an upper wedge 51, a lower wedge 52, and a locking screw 53. The upper wedge 51 and the lower wedge 52 have the same structure, and each includes a wedge body 511 and a connecting steel plate 512. The upper and lower wedges 52 are locked and fixed in the deformation area 47 by a vertical locking screw 53. In a specific implementation structure, taking the upper wedge 51 as an example in this embodiment to introduce its specific structure, where the connecting steel plate 512 is fixed on one side wall of the wedge body 511, specifically on the side wall of the rear upper plane of the wedge body 511. Mounting holes 513 are evenly opened in the connecting steel plate 512 in the transverse direction. In this embodiment, the front side, the left side, and the upper part of the right side of the wedge body 511 are all inclined plane structures. Thus, after the wedge body 511 is installed in the deformation area 47, as Figure 3 shown, the inclined planes on its three sides are respectively in adaptive contact with the flexible body 45 at corresponding positions.

[0028] In this way, when the wood deforms, the flexible body 45 can extend and buffer the deformation force of the wood to a certain extent, reducing the impact on the connecting piece and stress concentration. And when the upper and lower wedge bodies 511 are symmetrically locked in the deformation area 47, at the same time, the upper and lower connecting steel plates 512 are clamped in the limiting grooves 44 on the connecting seat 4, and the outer ends of the upper and lower connecting steel plates 512 extend outwards to form connecting parts for adaptively inserting and connecting with the notches on the wooden beam 2.

[0029] And flexible rubber cushions 7 are respectively fixedly laid at the bottoms of the upper and lower wedge bodies 511. The two side wedge bodies 511 are symmetrically installed in the deformation area 47. In the initial state, there is a gap between the upper and lower wedge bodies 511. When the wooden beam 2 undergoes vertical deformation, the adjacent surfaces of the upper and lower wedge bodies 511 can be squeezed against each other.

[0030] As Figure 5As shown, a backing plate 514 is also fixed to the top of the wedge body 511. The width of the backing plate 514 is greater than the width of the top surface of the wedge body 511 and is adapted to the width of the sinking groove 43 on the connecting seat 4. Thus, after the wedge body 511 is assembled from the central groove 42 into the deformation zone 47, the bottom plate above the wedge body 511 can be assembled into the sinking groove 43. Further, as Figure 6 shown, in this embodiment, a flexible column array is evenly distributed in the sinking groove 43. The height of each column 6 is less than the depth of the sinking groove 43. Therefore, after the wedge body 511 is adaptively installed in the support seat 3, the upper and lower backing plates 514 are respectively clamped in the sinking grooves 43 at corresponding positions, and their bottom surfaces press against the columns 6, thereby closing the upper and lower open end faces of the support seat 3.

[0031] For the assembled wood structure node connection structure provided by the present invention, the connecting seat 4 is assembled on the support seat 3 and locked and fixed. The design that the limiting groove 44 communicates with the deformation zone 47 makes the installation of the wedge body 511 more convenient, reduces the complexity and time of on-site construction, makes the connection between the wooden beam 2 and the wooden column 1 simpler and faster, and also makes maintenance more convenient. If the flexible body 45 or the wedge body 511 is damaged, it can be easily replaced without disassembling and reconstructing the entire node, extending the service life, reducing the maintenance cost and replacement frequency, and improving the economy and reliability of the overall structure.

[0032] Embodiment 2, on the basis of Embodiment 1, this embodiment further describes the installation structure of the connecting seat 4.

[0033] As Figure 7 shown, in this embodiment, a partition plate 8 is fixed at the center of the inner cavity of the support seat 3. A screw hole is opened in the middle of the partition plate 8. The bottom surfaces of the upper and lower wedge bodies 511 are respectively in contact with the upper and lower surfaces of the partition plate 8. With such a setting in this embodiment, before adding the partition plate 8, the upper and lower wedge bodies 511 would directly contact and be connected together by force. When the upper and lower wedge bodies 511 transfer force, the force transfer path is relatively direct. However, this also means that the forces between the upper and lower wedge bodies 511 will affect each other, and when subjected to a large external force, stress concentration may occur on the contact surface between the upper and lower wedge bodies 511, easily generating a high stress on the contact surface and resulting in problems such as stress concentration, which may cause local deformation or damage.

[0034] Therefore, after adding the partition plate 8 between the upper and lower wedge bodies 511 in this embodiment, they are no longer connected together by force, making the force transfer between the upper and lower wedge bodies 511 more dispersed, reducing the direct contact between the upper and lower wedge bodies 511, making the force transfer between the upper and lower wedge bodies 511 more uniform, reducing the stress concentration on the contact surface. Even when the wood deforms, the partition plate 8 can effectively disperse the force, reducing the impact on the connecting piece and stress concentration, thereby improving the stability and reliability of the node.

[0035] In addition, the partition plate 8 provided in this embodiment can also improve the self-resetting ability of the node to a certain extent. When subjected to external force, the partition plate 8 can provide a certain buffering effect. When the external force disappears, the partition plate 8 can help the node return to its initial position, thereby enhancing the self-resetting ability of the structure.

[0036] Embodiment 3, based on the above-mentioned embodiments 1 and 2, this embodiment provides another structure of an upper wedge 51 and a lower wedge 52. In this embodiment, the upper wedge 51 and the lower wedge 52 have the same structure, and each includes a connecting steel plate 512 and a wedge 511, wherein the four sides of the wedge 511 are all symmetrical inclined structures, and the whole is a cone structure. The connecting steel plate 512 is fixed to one side of the wedge 511, so that the side where the connecting steel plate 512 is fixed to the cone is an inclined structure, so that when the wooden beam 2 deforms toward the wooden column 1 and transmits force, the inclined structure can decompose the force vertically and horizontally. Specifically, the force can be decomposed into two components perpendicular to the inclined surface and parallel to the inclined surface, so that the force transmission is more uniform and effective, and the local stress concentration is reduced.

[0037] The axial force of the locking screw 53 corresponds to the decomposed force, which can effectively enhance the stability of the connection. The force of the locking screw 53 can not only fix the wedge 511 in the deformation zone 47, but also interact with the decomposed force to form a stable force balance system, thereby improving the bearing capacity and stability of the node.

[0038] Embodiment 4, based on the above embodiments 1-3, this embodiment provides a method for constructing a prefabricated wood structure node, comprising the following steps: Step 1: Fix the support base 3 on the side wall of the wooden column 1 by bolts; Step 2: Insert the fixing block 41 on the front side of the connecting seat 4 into the supporting seat 3, and fix the two together with bolts; Step 3: Insert the wedge-shaped body 511 into the cavity in the connecting seat 4 from the upper and lower sides respectively, until the pad 514 on the upper wedge-shaped body 511 fits with the sinking groove 43 on the top of the connecting seat 4, and the pad 514 on the lower wedge-shaped body 511 fits with the sinking groove 43 on the bottom of the connecting seat 4; Step 4: The locking screw 53 penetrates up and down and locks the connecting seat 4 and the two sets of wedge-shaped bodies 511 together; Step 5: Pre-open a connection groove on the wooden beam 2 to match the connection steel plate 512; Step 6: Insert the connection groove on the wooden beam 2 into the connection steel plate 512, ensure that the upper and lower surfaces of the wooden beam 2 are flush with the connection seat 4 respectively, and finally fix the connection steel plate 512 and the wooden beam 2 with bolts.

[0039] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An assembled wood structure node connection structure, characterized in that: The invention comprises a supporting seat, a connecting seat and a docking assembly, wherein the connecting seat is assembled on the supporting seat and locked and fixed; a cavity is provided in the connecting seat, and a flexible body is fixedly installed on the side walls around the cavity, and the middle part of the four-sided flexible body jointly forms a deformation zone in the cavity, and the width of the upper and lower sides in the deformation zone is greater than the width of the middle part; a limiting groove running through the upper and lower parts is also provided on the connecting seat, and the limiting groove is connected with the deformation zone; the docking assembly comprises an upper wedge-shaped piece, a lower wedge-shaped piece and a locking screw, and the upper wedge-shaped piece and the lower wedge-shaped piece respectively comprise a wedge-shaped body and a connecting steel plate, and the connecting steel plate is fixed on one side wall of the wedge-shaped body, and mounting holes are evenly provided on the connecting steel plate; when the upper and lower wedge-shaped bodies are symmetrically locked in the deformation zone vertically by the locking screw, the inclined surface on the wedge-shaped body is adapted to be squeezed with the flexible body, and at the same time, the upper and lower connecting steel plates are clamped in the limiting groove and form a connecting part outwardly.

2. The assembled wood structure node connection structure according to claim 1, characterized in that: The upper and lower top surfaces of the connecting seat are penetrated with a central groove, and the wedge-shaped body passes through the central groove and enters the deformation zone.

3. The assembled wood structure node connection structure according to claim 2, characterized in that: A sinking groove is formed on the peripheral side of the central groove, and a pad is fixed on the top surface of the wedge-shaped body. When the wedge-shaped body is adapted and installed in the support seat, the pad is clamped in the sinking groove to close the upper and lower sides of the support seat.

4. The assembled wood structure node connection structure according to claim 3, characterized in that: The sinking groove is also evenly distributed with an array of flexible columns, the height of each column is less than the depth of the sinking groove, and when the wedge-shaped body is adapted and installed in the support seat, the upper and lower pads are respectively clamped in the sinking groove at corresponding positions, and their bottom surfaces press against the columns.

5. The assembled wood structure node connection structure according to claim 3, characterized in that: The three side walls of the wedge-shaped body are inclined structures, and the corresponding flexible body located in the cavity is also provided with inclined surfaces. When the wedge-shaped body is installed in the deformation zone, the inclined surfaces on its three sides are respectively adapted to contact with the flexible bodies at corresponding positions.

6. The assembled wood structure node connection structure according to claim 5, characterized in that: A rubber pad is fixedly laid on the bottom of the wedge-shaped body, and the wedge-shaped bodies on both sides are symmetrically installed in the deformation zone. In the initial state, there is a gap between the upper and lower wedge-shaped bodies. When the wooden beam undergoes vertical deformation, the adjacent surfaces of the upper and lower wedge-shaped bodies can be squeezed and abutted together.

7. The assembled wood structure node connection structure according to claim 1, characterized in that: The support seat is in a U-shaped structure, with its opening facing the connecting seat. Bolt holes are evenly opened on the side walls of the bottom surface of the support seat for connection with wooden beam bolts.

8. The assembled wood structure node connection structure according to claim 1, characterized in that: A fixing block is provided on the front side of the connecting seat, and the fixing block is matched and inserted in the fixing seat. Reinforcement plates are also symmetrically installed on the connecting seats on the upper and lower sides of the fixing block, so that the front side of the connecting seat has a mountain-shaped structure, and the connecting seat and the support seat are locked and fixed by screws.

9. The assembled wood structure node connection structure according to claim 1, characterized in that: A partition plate is fixed at the center of the cavity of the support seat, a screw hole is opened in the middle of the partition plate, and the bottom surfaces of the upper and lower wedge-shaped bodies are in contact with the upper and lower surfaces of the partition plate respectively.

10. A method for constructing a prefabricated wood structure node, using the prefabricated wood structure node connection structure according to claims 1 to 9, characterized in that: The following steps are involved: Step 1: Fix the support base on the side wall of the wooden column by bolting; Step 2: Insert the fixing block on the front side of the connecting seat into the supporting seat and fix the two together with bolts; Step 3: Insert the wedge-shaped body into the cavity in the connecting seat from the upper and lower sides respectively, until the pad on the upper wedge-shaped body fits into the sinking groove at the top of the connecting seat, and the pad on the lower wedge-shaped body fits into the sinking groove at the bottom of the connecting seat; Step 4: Pass the locking screw up and down and lock the connecting seat and the two sets of wedge-shaped bodies together; Step 5: Pre-open connection grooves on the wooden beams to match the connection steel plates; Step 6: Insert the connecting groove on the wooden beam into the connecting steel plate, ensure that the upper and lower surfaces of the wooden beam are flush with the connecting seat, and finally fix the connecting steel plate and the wooden beam with bolts.

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