Fabricated steel round timber column composite joint with sleeve energy dissipation plate and construction method thereof

Abstract

The application discloses a steel round log column combined node with a sleeved hoop energy dissipation plate and a construction method thereof, and the steel round log column combined node comprises a round log column and a wood beam, and a prefabricated steel sleeve is arranged at the connecting position of the round log column and the wood beam; the prefabricated steel sleeve comprises a round log column steel sleeve, a wood beam steel sleeve and a cross-shaped steel plate, the round log column steel sleeve is sleeved on the round log column, the wood beam steel sleeve is sleeved on the wood beam, and the round log column steel sleeve and the wood beam steel sleeve are connected through the sleeved hoop energy dissipation plate; the wood beam is connected through the wood beam steel sleeve and the cross-shaped steel plate; the round log column comprises a lower round log column and an upper round log column, the upper end of the lower round log column is provided with a lower round log column cross-shaped insertion groove, a lower round log column arc-shaped insertion block and a lower round log column arc-shaped insertion groove, and the lower end of the upper round log column is provided with an upper round log column cross-shaped insertion groove, an upper round log column arc-shaped insertion block and an upper round log column arc-shaped insertion groove; the application strengthens the overall mechanical property between the round log column and the prefabricated steel sleeve, and the internal force transmission effect is good; the application effectively improves the seismic performance of the node and is convenient for replacement.

Description

Technical Field

[0001] This invention pertains to nodes and their construction methods, specifically a prefabricated steel-wooden column composite node with a sleeved energy-dissipating plate and its construction method. Background Technology

[0002] With the rapid development of the modern construction industry and continuous improvement in construction technology, building materials have become increasingly diversified. Wood, as the only renewable building material, boasts advantages such as excellent flame retardancy, high strength-to-weight ratio, and ease of processing; however, its natural defects lead to significant variations in its properties. Steel offers diverse connection methods, light weight, and good ductility, but it is prone to instability and rust. Combining wood and steel into a steel-timber composite structure, with wood as the primary material and steel scientifically integrated, leverages the advantages of both materials, achieving improved strength while maintaining light weight.

[0003] However, in the actual construction of existing timber structures, the beam-column joints undergo complex processing, requiring high precision and a long processing cycle. Furthermore, the processed beam-column joints suffer from reduced overall performance, mechanical properties, and seismic resistance, and the inability to replace damaged small components. Steel-timber composite structures offer better mechanical properties and a wider range of applications than traditional timber structures. For example, the invention patent with publication number CN112412088A discloses an energy-dissipating plate device for reinforcing timber structure joints. By weakening the flanges of the fixed plates, it delays the failure of the timber compared to the fixed plates, achieving a "strong column, weak beam" effect. However, the hoops and fixed plates do not form a unified whole, resulting in poor internal force transmission at the beam-column joints, and the seismic performance needs improvement. The invention patent with publication number CN112523351A describes a post-earthquake replaceable steel frame buckling-restrained energy-dissipating beam-column joint. Although the load-bearing capacity and seismic resistance of the joint are enhanced by providing out-of-plane strong restraint through stiffening shear members and plastic deformation of the energy-dissipating plate, the replacement of the energy-dissipating component is complicated and labor-intensive. It can only be replaced by separating the cantilever section steel beam and the mid-span steel beam and supporting the mid-span steel beam.

[0004] In summary, the existing steel-wood composite structure has poor internal force transfer at beam-column joints, its seismic performance needs to be improved, and replacing energy-consuming components is a complex and labor-intensive process. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the purpose of this invention is to provide a prefabricated steel round wood column combination node with a sleeved energy-dissipating plate that has good overall node performance, good seismic performance and easy replacement of small parts. Another purpose of this invention is to provide a construction method for a prefabricated steel round wood column combination node with a sleeved energy-dissipating plate that has high construction quality and fast construction speed.

[0006] Technical Solution: The present invention discloses a prefabricated steel-timber column assembly node with a hoop-type energy-dissipating plate, comprising a round timber column and a timber beam, wherein a prefabricated steel sleeve is provided at the connection between the round timber column and the timber beam; the prefabricated steel sleeve comprises a round timber column steel sleeve, a timber beam steel sleeve, and a cross-shaped steel plate, wherein the round timber column steel sleeve is fitted onto the round timber column, and the timber beam steel sleeve is fitted onto the timber beam; the round timber column steel sleeve and the timber beam steel sleeve are connected by a hoop-type energy-dissipating plate; the timber beams are interconnected by the timber beam steel sleeves and the cross-shaped steel plate; the round timber column... It includes a lower round wooden column and an upper round wooden column. The upper part of the lower round wooden column is provided with a cross-shaped slot, an arc-shaped insert, and an arc-shaped slot. The lower end of the upper round wooden column is provided with a cross-shaped slot, an arc-shaped insert, and an arc-shaped slot. The cross-shaped slots of the lower and upper round wooden columns match the cross-shaped steel plate. The arc-shaped insert of the lower round wooden column matches the arc-shaped slot of the upper round wooden column. The arc-shaped slot of the lower round wooden column matches the arc-shaped insert of the upper round wooden column.

[0007] Furthermore, the surface where the wooden beam contacts the round wooden column is curved, and the wooden beam is provided with wooden beam slots, horizontal bolt holes and vertical bolt holes, and the wooden beam slots are matched with cross-shaped steel plates.

[0008] Furthermore, a slotted groove is provided around the steel sleeve of the round wooden column for engaging the cross-shaped steel plate.

[0009] Furthermore, the steel sleeve of the wooden beam is provided with horizontal bolt holes and vertical bolt holes.

[0010] Furthermore, the energy-dissipating plate includes an M-shaped clamp and a fan-shaped energy-dissipating plate. The M-shaped clamp is fixed along the circumference of the steel sleeve of the round wooden column by bolts, and the M-shaped clamp is fixedly connected to the steel sleeve of the wooden beam by the fan-shaped energy-dissipating plate. The width of the fan-shaped energy-dissipating plate gradually increases in the direction away from the M-shaped clamp.

[0011] Furthermore, two bolt holes are reserved at each end of the M-shaped sleeve. The narrow side of the fan-shaped energy-consuming plate is welded to the M-shaped sleeve to form a whole. The wide side of the fan-shaped energy-consuming plate is reserved with bolt holes corresponding to the vertical bolt holes of the wooden beam steel sleeve and the vertical bolt holes of the wooden beam.

[0012] Furthermore, the length of the steel sleeve extending from the round wooden column steel sleeve of the wooden beam is greater than the length of the cross-shaped steel plate extending out.

[0013] Furthermore, the wooden beams are connected to the precast steel sleeves by transverse high-strength bolts.

[0014] Furthermore, the precast steel sleeve and the energy-consuming plate of the sleeve are connected by vertical high-strength bolts.

[0015] Furthermore, the cross-shaped steel plate is made by welding a long steel plate and two short steel plates through four vertical slots in the round wooden column steel sleeve, and forming an integral part with the round wooden column steel sleeve and the wooden beam steel sleeve. The outermost end of the cross-shaped steel plate is reserved with bolt holes corresponding to the horizontal bolt holes of the wooden beam steel sleeve and the horizontal bolt holes of the wooden beam.

[0016] The construction method for the above-mentioned prefabricated steel-timber column composite joint with sleeved energy-dissipating panel includes the following steps:

[0017] Step 1: Place the prefabricated steel sleeve on the upper end of the lower round wooden column, and overlap the cross-shaped steel plate inside the prefabricated steel sleeve with the cross-shaped slot of the lower round wooden column.

[0018] Step 2: Insert the wooden beam into the precast steel sleeve;

[0019] Step 3: Secure the wooden beams and precast steel sleeves together using transverse high-strength bolts;

[0020] Step 4: Insert the upper round wooden column into the steel sleeve of the round wooden column. The cross-shaped slot of the upper round wooden column overlaps with the cross-shaped steel plate. The arc-shaped insert and the arc-shaped slot of the upper round wooden column are respectively connected to the arc-shaped slot and the arc-shaped insert of the lower round wooden column with mortise and tenon joints.

[0021] Step 5: Place the energy-dissipating plate on the outside of the steel sleeve of the round wooden column;

[0022] Step 6: Secure the energy-consuming plate of the hoop with bolts, and use vertical high-strength bolts to fix the energy-consuming plate of the hoop, the steel sleeve of the wooden beam, and the wooden beam.

[0023] Working principle: When the structure is subjected to external loads, compression begins between the wooden beam and the steel sleeve, and the internal force on the wooden beam is gradually transferred to the steel sleeve. As the external load gradually increases, the stress at the front end of the steel sleeve and the wooden beam also gradually increases, and then the internal force is transferred to the high-strength friction bolts. When the external load continues to increase, the high-strength friction bolts gradually reach yield, at which point the wooden beam and the steel sleeve produce a certain vertical displacement, and finally the energy is dissipated through the deformation of the energy-dissipating plate. Therefore, under the action of the precast steel sleeve, the force transmission effect of the steel-wooden column composite node in this application is significantly increased, the bearing capacity is significantly improved, and the energy is dissipated through the deformation of the energy-dissipating plate, significantly improving the seismic performance of the node; at the same time, under the pre-tightening force of the energy-dissipating plate, the vertical bearing capacity of the wooden column is improved to a certain extent.

[0024] Beneficial effects: Compared with the prior art, the present invention has the following significant features:

[0025] 1. The upper and lower round wooden columns are connected by cross-shaped steel plates, and each of the upper and lower round wooden columns is reserved with corresponding arc-shaped slots and arc-shaped inserts for mortise and tenon connection, which enhances the overall mechanical performance between the round wooden column and the prefabricated steel sleeve and improves the internal force transmission effect.

[0026] 2. The energy-dissipating plate with a hoop can effectively improve the seismic performance of the wooden structure joints, and the components can be replaced at any time after damage.

[0027] 3. The joints are primarily made of wood, scientifically combined with steel, leveraging the advantages of both materials to improve the strength and stability of the joints;

[0028] 4. All components can be mass-produced in the factory, and fully assembled on site, saving manpower, speeding up construction and improving construction quality;

[0029] 5. The precast steel sleeves are bolted to the wooden beams using horizontal high-strength bolts, vertical high-strength bolts, and cross-shaped steel plates to enhance the wooden structure joints' resistance to bending deformation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the wooden column 12 in this invention;

[0032] Figure 3 This is a schematic diagram of the structure of the lower round wooden column 11 of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the wooden beam 2 of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the round wooden column steel sleeve 31 of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the cross-shaped steel plate 33 of the present invention;

[0036] Figure 7 This is a schematic diagram showing the connection between the round wooden column steel sleeve 31 and the cross-shaped steel plate 33 of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the prefabricated steel sleeve 3 of the present invention;

[0038] Figure 9 This is a front view of the prefabricated steel sleeve 3 of the present invention;

[0039] Figure 10 This is a top view of the prefabricated steel sleeve 3 of the present invention;

[0040] Figure 11 This is a schematic diagram of the structure of the energy-dissipating plate 4 of the present invention;

[0041] Figure 12 This is a construction flowchart of the present invention;

[0042] Figure 13 There are three types of beam-column joint models, where (a) is timber, (b) is timber + steel sleeve, and (c) is timber + steel sleeve + energy dissipation plate of this application.

[0043] Figure 14 These are the final failure deformation stress diagrams at the beam-column joint connections of three types, where (a) represents timber, (b) represents timber + steel sleeve, and (c) represents timber + steel sleeve + energy dissipation plate of this application.

[0044] Figure 15 These are axial force-displacement curves for three types of beam-column joints. Detailed Implementation

[0045] like Figure 1 The prefabricated steel-timber column assembly with a clamp-type energy-dissipating plate includes a 150mm diameter timber column 1, a 100×150mm cross-section timber beam 2, prefabricated steel sleeves 3 (370mm and 150mm long, respectively, with a thickness of 2mm), and a 3mm thick clamp-type energy-dissipating plate 4. All components are made of Q235 steel. The upper timber column 12 and the lower timber column 11 are connected by the 2mm thick prefabricated steel sleeve 3. The timber beam 2 is connected by a timber beam steel sleeve 32 within the prefabricated steel sleeve 3 and a cross-shaped steel plate 33. The timber beam steel sleeve has a cross-section of 110×160mm, the cross-shaped steel plate has a cross-section of 3×156mm, and the long and short steel plates have lengths of 440mm and 220mm, respectively. A 3mm thick energy-dissipating plate 4 is fitted onto the outside of a 160mm diameter round wooden column steel sleeve 31 to form an assembled steel round wooden column assembly node with a hoops energy-dissipating plate.

[0046] like Figures 2-3 The 150mm diameter round wooden column includes a lower round wooden column 11 and an upper round wooden column 12. The lower end of the upper round wooden column 12 and the upper end of the lower round wooden column 11 are respectively provided with an upper round wooden column cross-shaped slot 121 with a width of 3mm and a depth of 75mm, corresponding to the cross-shaped steel plate 33. The lower end of the upper round wooden column 12 is provided with two diagonally opposite upper round wooden column arc-shaped inserts 122 and two adjacent diagonally opposite upper round wooden column arc-shaped slots 123. The upper end of the lower round wooden column 11 is provided with two diagonally opposite lower round wooden column arc-shaped slots 113 and two adjacent diagonally opposite lower round wooden column arc-shaped inserts 112, corresponding to the upper round wooden column 12.

[0047] like Figure 4The wooden beam 2 is provided with a curved surface 211 with a radius of 75mm and a wooden beam slot 212 with a width of 3mm, which can be connected to the outer side of the precast steel sleeve 3 and the built-in cross-shaped steel plate 33. It also has reserved horizontal bolt holes 213 and vertical bolt holes 214 with a diameter of 12mm. The horizontal bolt holes 213 are staggered and not on the same plane, while the vertical bolt holes 214 are arranged flush and on the same plane.

[0048] like Figures 5-7 The prefabricated steel sleeve 3 has four vertical slots 311 with a cross section size of 4×150mm around the round wooden column steel sleeve 3. A cross-shaped steel plate 33 is formed by welding a long steel plate 332 and two short steel plates 333 through the four vertical slots 311 in the round wooden column steel sleeve 31. It forms an integral part with the round wooden steel sleeve 31. The outermost end of the cross-shaped steel plate 33 has a 12mm diameter bolt hole 331 that corresponds to the horizontal bolt hole 213 of the wooden beam.

[0049] like Figures 8-10 The steel sleeve 32 of the timber beam has a reserved hole diameter of 12mm, and the horizontal bolt hole 321 and vertical bolt hole 322 of the steel sleeve of the timber beam correspond to the horizontal bolt hole 213 and the vertical bolt hole 214 of the timber beam. Figure 6 The cylindrical wooden column steel sleeve 31 and the cross-shaped steel plate 33 shown are welded together to form a prefabricated steel sleeve 3. The height of the cross-shaped steel plate 33 is the same as the internal height of the wooden beam steel sleeve 32. The extension length of the cross-shaped steel plate 33 is less than the extension length of the wooden beam steel sleeve 32, which makes it easier to reserve vertical bolt holes 214 for the wooden beam.

[0050] like Figure 11 The sleeve energy-consuming plate 4 includes an M-shaped sleeve 41 with a thickness of 3mm and a fan-shaped energy-consuming plate 42 with a thickness of 3mm. Two bolt holes 411 with a diameter of 10mm are reserved at both ends of the M-shaped sleeve. The narrow side of the fan-shaped energy-consuming plate 42 with a width of 40mm is welded to the M-shaped sleeve 41 to form an integral whole. The wide side of the fan-shaped energy-consuming plate 42 with a width of 80mm is reserved with bolt holes 421 corresponding to the vertical bolt holes 214 of the wooden beam.

[0051] like Figure 12 The prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate in this embodiment includes the following steps:

[0052] Step 1: Place the prefabricated steel sleeve 3 on the upper end of the lower round wooden column 11, and make half the height of the cross-shaped steel plate 33 inside the prefabricated steel sleeve 3 overlap with the cross-shaped slot 111 of the lower round wooden column.

[0053] Step 2: Insert the wooden beam 2 with one end of the curved surface 211 into the wooden beam steel sleeve 32 of the prefabricated steel sleeve 3, and make the wooden beam slot 212 of the wooden beam 2 overlap with the cross-shaped steel plate 33.

[0054] Step 3: Connect the 10.9 grade M10 transverse high-strength bolts 3211 through the transverse bolt holes 321 on the wooden beam steel sleeve, the transverse bolt holes 213 on the wooden beam, and the bolt holes 331 on the cross-shaped steel plate 33.

[0055] Step 4: Insert the upper round wooden column 12 into the prefabricated steel sleeve 3's round wooden column steel sleeve 31. The upper round wooden column cross-shaped slot 121 overlaps with the other half of the cross-shaped steel plate 33. The two diagonal upper round wooden column arc-shaped inserts 122 and the two adjacent diagonal upper round wooden column arc-shaped slots 123 of the upper round wooden column 12 are respectively connected to the two diagonal lower round wooden column arc-shaped slots 113 and the two adjacent diagonal lower round wooden column arc-shaped inserts 112 of the lower round wooden column 11 with mortise and tenon joints.

[0056] Step 5: Place the four energy-consuming plates 4 on the outside of the round wooden column steel sleeve 31, aligning the bolt holes 321 on the wide side of the fan-shaped energy-consuming plate 42 with the vertical bolt holes 322 and 214 of the wooden beam steel sleeve.

[0057] Step 6: Use 8.8 grade M8 bolts 4111 to bolt the adjacent sleeve energy-consuming plates 4, and use 10.9 grade M10 vertical high-strength bolts 4211 to bolt the fan-shaped energy-consuming plate 42, the wooden beam steel sleeve 32 and the wooden beam 2 to form a prefabricated steel round wooden column combination node with sleeve energy-consuming plates.

[0058] Design a steel-wood composite beam-column joint reinforced with an additional energy-dissipating plate using steel sleeves. The wooden beam has a cross-section of 100×150mm and a length of 600mm; the wooden column has a diameter of 150mm and a length of 800mm; the steel sleeve column is 370mm long, the steel sleeve beam is 150mm long, and both are 2mm thick; the energy-dissipating plate is 3mm thick; all steel used is Q235 steel; the tie bolts are all friction-type high-strength M10 grade 10.9 bolts. The wooden beam and column are connected by a half-tenon joint, with a tenon cross-section of 50×150mm and an insertion depth of 75mm into the wooden column. Modeling was performed using ABAQUS finite element software, and monotonic loads were applied to the beam ends to analyze their mechanical properties. Three types of beam-column joint models were established as follows: Figure 13 As shown.

[0059] A vertical displacement load of 60 mm was applied to the beam end reference point RP-2 in the three types of beam-column joint models. The final failure deformation and stress diagram of the beam-column joint are shown below. Figure 14 As shown, the unit is MPa. Figure 14(a) The tenon of the wooden beam has been pulled out, and the area with high stress is mainly concentrated near the end of the tenon of the wooden beam. Figure 14 (b) A steel sleeve was added to the timber base, resulting in stress concentration at the right angle of the beam-column steel sleeve junction, and severe collapse of the steel sleeve at the bolt connection position at the beam end. Figure 14 (c) An energy-absorbing plate was added to the combination of timber and steel sleeve. It can be observed that the energy-absorbing plate absorbs part of the energy through its own plastic deformation, which significantly reduces the large stress area and stress concentration phenomenon. At the same time, the collapse phenomenon at the bolt connection position of the steel sleeve at the beam end is also effectively reduced.

[0060] The axial force-displacement curves of the three types of beam-column joints are as follows: Figure 15 As shown in the figure, the load that wood can withstand is very small, with a maximum axial force of only 3.94 kN. The axial force-displacement curves of the "wood + steel sleeve" combined beam-column joint and the "wood + steel sleeve + energy-dissipating plate" combined beam-column joint show similar trends, both gradually increasing with displacement, with the axial force first increasing sharply and then slowly increasing, eventually becoming horizontal and constant. The maximum axial force values ​​for the two are 25.79 kN and 25.87 kN, respectively. In the elastic stage, due to the presence of the energy-dissipating plate, the initial stiffness of the "wood + steel sleeve + energy-dissipating plate" combined beam-column joint is greater than that of the "wood + steel sleeve" combined beam-column joint. When entering the plastic stage, the energy-dissipating plate absorbs some energy through its own plastic deformation capacity, thereby improving the load-bearing capacity of the beam-column joint. Therefore, the load-bearing capacity of the "wood + steel sleeve + energy-dissipating plate" combined beam-column joint is higher than that of the "wood + steel sleeve" combined beam-column joint at this time. Therefore, the joint load-bearing capacity of this embodiment is optimal.

Claims

1. A prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate, characterized in that: The system includes a round wooden column (1) and a wooden beam (2). A prefabricated steel sleeve (3) is provided at the connection between the round wooden column (1) and the wooden beam (2). The prefabricated steel sleeve (3) includes a round wooden column steel sleeve (31), a wooden beam steel sleeve (32), and a cross-shaped steel plate (33). The round wooden column steel sleeve (31) is fitted on the round wooden column (1), and the wooden beam steel sleeve (32) is fitted on the wooden beam (2). The round wooden column steel sleeve (31) and the wooden beam steel sleeve (32) are connected by a sleeve energy-consuming plate (4). The wooden beam (2) is connected to each other by the wooden beam steel sleeve (32) and the cross-shaped steel plate (33). The round wooden column (1) includes a lower round wooden column (11) and an upper round wooden column (12). The upper end of the lower round wooden column (11) is provided with a lower round wooden column cross-shaped slot (111), a lower round wooden column arc-shaped insert (112) and a lower round wooden column arc-shaped slot (113). The lower end of the upper round wooden column (12) is provided with an upper round wooden column cross-shaped slot (121), an upper round wooden column arc-shaped insert (122) and an upper round wooden column arc-shaped slot (123). The lower round wooden column cross-shaped slot (111) and the upper round wooden column cross-shaped slot (121) are matched with the cross-shaped steel plate (33). The lower round wooden column arc-shaped insert (112) is matched with the upper round wooden column arc-shaped slot (123). The lower round wooden column arc-shaped slot (113) is matched with the upper round wooden column arc-shaped insert (122). The sleeve energy-consuming plate (4) includes an M-shaped sleeve (41) and a fan-shaped energy-consuming plate (42). The M-shaped sleeve (41) is fixed along the circumference of the round wooden column steel sleeve (31) by bolts (4111). The M-shaped sleeve (41) is fixedly connected to the wooden beam steel sleeve (32) through the fan-shaped energy-consuming plate (42). The width of the fan-shaped energy-consuming plate (42) gradually increases along the direction away from the M-shaped sleeve (41); The length of the wooden beam steel sleeve (32) extending out of the round wooden column steel sleeve (31) is greater than the length of the cross-shaped steel plate (33) extending out.

2. The prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate according to claim 1, characterized in that: The surface of the wooden beam (2) that contacts the round wooden column (1) is curved (211). The wooden beam (2) is provided with a wooden beam slot (212), a wooden beam horizontal bolt hole (213) and a wooden beam vertical bolt hole (214). The wooden beam slot (212) matches the cross-shaped steel plate (33).

3. The prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate according to claim 1, characterized in that: The wooden column steel sleeve (31) is surrounded by a straight slot (311) for engaging the cross-shaped steel plate (33).

4. The prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate according to claim 1, characterized in that: The wooden beam steel sleeve (32) is provided with a horizontal bolt hole (321) and a vertical bolt hole (322).

5. A prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate according to claim 1, characterized in that: The wooden beam (2) is connected to the precast steel sleeve (3) by transverse high-strength bolts (3211).

6. The prefabricated steel-timber column assembly node with a sleeved energy-dissipating plate according to claim 1, characterized in that: The precast steel sleeve (3) and the sleeve energy-consuming plate (4) are connected by vertical high-strength bolts (4211).

7. A construction method for a prefabricated steel-timber column composite joint with a sleeved energy-dissipating plate according to any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: Place the prefabricated steel sleeve (3) on the upper end of the lower round wooden column (11), and overlap the cross-shaped steel plate (33) inside the prefabricated steel sleeve (3) with the cross-shaped slot (111) of the lower round wooden column. Step 2: Insert the wooden beam (2) into the precast steel sleeve (3); Step 3: Secure the wooden beam (2) and the precast steel sleeve (3) together using transverse high-strength bolts (3211); Step 4: Insert the upper round wooden column (12) into the round wooden column steel sleeve (31), and overlap the cross-shaped slot (121) of the upper round wooden column with the cross-shaped steel plate (33). The upper round wooden column arc-shaped insert (122) and the upper round wooden column arc-shaped slot (123) are respectively connected to the lower round wooden column arc-shaped slot (113) and the lower round wooden column arc-shaped insert (112) with tenon and mortise joints. Step 5: Place the energy-consuming plate (4) on the outside of the steel sleeve (31) of the round wooden column; Step 6: Fix the sleeve energy dissipation plate (4) with bolts, and fix the sleeve energy dissipation plate (4), wooden beam steel sleeve (32) and wooden beam (2) with vertical high strength bolts (4211).

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