Reinforcing device of wood structure folk house beam column mortise and tenon joint and wood structure

Abstract

The invention provides a reinforcing device for wood structure folk house beam column mortise and tenon joints and a wood structure, and relates to the technical field of wood structures. The wood beam and the wood column are reinforced through the reinforcing device, the reinforcing device comprises a first reinforcing plate and a second reinforcing plate, the first reinforcing plate is provided with a first body and a first energy consumption plate, the second reinforcing plate is provided with a second body and a second energy consumption plate, the first body is rotationally connected with the wood beam, and the second body is rotationally connected with the wood column; and the first energy consumption plate is connected with the second energy consumption plate. When an earthquake occurs, the first energy consumption plate and the second energy consumption plate collide to generate bulging deformation, participate in friction energy consumption and counteract part of acting force of the earthquake on the wood structure, the damping performance of the beam-column joint is improved, the influence of the earthquake on the wood structure is reduced, and then the wood structure can be effectively protected.

Description

Technical Field

[0001] The invention relates to the technical field of wood structures, in particular to a reinforcing device for mortise and tenon joints of beams and columns of a wood-structured residential building and a wood structure. Background Art

[0002] In timber structures, mortise and tenon joints are typical semi-rigid connections. This connection method has certain limitations, with relatively low load-bearing capacity and bending stiffness. Under long-term natural conditions, and in the event of emergencies such as earthquakes, mortise and tenon joints are prone to loosening and deformation. These deformations often cannot recover automatically, forming residual deformations. Over time, these residual deformations accumulate and may eventually cause the entire timber structure to tilt or skew, posing a serious threat to its safety. Given the significant impact of mortise and tenon joints on the safety of timber structures, they have become a key area of ​​focus and treatment in timber structure repair and reinforcement work.

[0003] The mortise and tenon joints of beams and columns in traditional timber-framed residential buildings rely on friction between the wood and the interlocking force of the mortise and tenon to transmit loads. However, these joints have limited energy dissipation capacity and are prone to damage such as loosening and tenon breakage during earthquakes. While existing reinforcement methods (such as iron wrapping and steel plywood anchoring) can increase joint stiffness, they lack energy dissipation mechanisms and can easily lead to sudden changes in stiffness, violating the ductility requirements of seismic design. Therefore, there is an urgent need to design a reinforcement device for timber mortise and tenon joints that is both effective and easy to install. Summary of the Invention

[0004] The purpose of the present invention is to provide a reinforcement device for the mortise and tenon joints of beams and columns of wooden residential buildings, so as to solve the technical problem in the prior art that the mortise and tenon joints are prone to loosening or breaking when an earthquake occurs.

[0005] A further object of the present invention is to reduce the additional stress in wooden structures.

[0006] Another object of the present invention is to provide a wooden structure having the above reinforcement device.

[0007] In particular, the present invention provides a reinforcement device for a wooden structure, characterized in that the wooden structure includes wooden columns and wooden beams connected by mortise and tenon joints, the wooden columns are arranged vertically, and the wooden beams are arranged horizontally, and the reinforcement device includes:

[0008] A first reinforcement plate comprises a first body and a plurality of first energy absorbing plate groups extending outward from the first body, wherein one end of the first body is rotatably connected to the bottom end of the wooden beam, and the other end extends obliquely downward toward the wooden column, and each first energy absorbing plate group comprises at least one first energy absorbing plate;

[0009] The second reinforcement plate comprises a second body and a plurality of second energy absorbing plate groups extending outward from the second body, wherein one end of the second body is rotatably connected to the side end of the wooden column, and the other end extends obliquely upward toward the wooden beam, and each group of the second energy absorbing plate groups includes at least one second energy absorbing plate;

[0010] Each group of the first energy-consuming plate groups is correspondingly connected to a group of the second energy-consuming plate groups to form an energy-consuming structure, and the energy-consuming structure is located between the first body and the second body.

[0011] Optionally, the distances between any two adjacent energy dissipation structures in all the energy dissipation structures are equal or unequal.

[0012] Optionally, each group of the first energy consumption plates includes two first energy consumption plates arranged in parallel and at intervals, and each group of the second energy consumption plates includes one second energy consumption plate, which is located between the two first energy consumption plates and connected to both first energy consumption plates.

[0013] Optionally, the distance between the second energy consuming plate and the two first energy consuming plates in the energy consuming structure is equal;

[0014] Along the direction from the wooden column to the wooden beam, the distance between the second energy absorbing plate and the two first energy absorbing plates in the plurality of energy absorbing structures gradually increases.

[0015] Optionally, in the energy dissipation structure, the distances between the second energy dissipation plate and the two first energy dissipation plates are not equal.

[0016] Optionally, the two first energy consumption plates in the energy consumption structure are respectively an outer energy consumption plate and an inner energy consumption plate, the outer energy consumption plate is located above the second energy consumption plate, and the inner energy consumption plate is located below the second energy consumption plate;

[0017] Along the direction from the wooden column to the wooden beam, the distance between the inner energy consumption plate and the second energy consumption plate in the plurality of energy consumption structures gradually increases, and the distance between the outer energy consumption plate and the second energy consumption plate gradually decreases;

[0018] Along the direction from the wooden column to the wooden beam, the stiffness of the plurality of inner energy absorbing panels increases sequentially, and the stiffness of the plurality of outer energy absorbing panels decreases sequentially.

[0019] Optionally, the distance between two second energy consumption plates in two adjacent energy consumption structures is greater than the distance between two inner energy consumption plates and smaller than the distance between two outer energy consumption plates.

[0020] Optionally, both the first energy consumption plate and the second energy consumption plate are provided with mounting holes, and a first connecting member is passed through the mounting holes to connect the first energy consumption plate and the second energy consumption plate, and the first energy consumption plate and the second energy consumption plate are configured to be rotatable relative to the first connecting member.

[0021] Optionally, the reinforcement device further includes:

[0022] a second connecting member, sleeved on the wooden beam and rotatably connected to the first body;

[0023] The third connecting member is sleeved on the wooden column and is rotatably connected to the second body.

[0024] In particular, the present invention further provides a wooden structure comprising:

[0025] Wooden beams, arranged in a horizontal direction;

[0026] Wooden columns are arranged in a vertical direction and connected to the wooden beams through mortise and tenon joints;

[0027] The two reinforcement devices are respectively installed on opposite sides of the wooden column and below the wooden beam.

[0028] The present invention reinforces wooden beams and columns using a reinforcement device comprising a first reinforcement plate and a second reinforcement plate. The first reinforcement plate comprises a first body and a first energy dissipation plate, while the second reinforcement plate comprises a second body and a second energy dissipation plate. The first body is pivotally connected to the wooden beam, the second body is pivotally connected to the wooden column, and the first energy dissipation plate is connected to the second energy dissipation plate. During an earthquake, the first and second energy dissipation plates collide and deform, dissipating frictional energy and offsetting some of the seismic forces acting on the wooden structure. This improves the shock absorption performance of the beam-column joint, reduces the impact of earthquakes on the wooden structure, and effectively protects the wooden structure.

[0029] Furthermore, in the present invention, mounting holes are provided on both the first energy dissipation plate and the second energy dissipation plate. The first connecting member passes through the mounting holes to connect the first energy dissipation plate and the second energy dissipation plate. The first energy dissipation plate and the second energy dissipation plate are configured to be rotatable relative to the first connecting member, thereby reducing additional stress on the wooden structure and protecting the wooden structure.

[0030] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 This is a schematic structural diagram from one angle of a reinforcement device for mortise and tenon joints of beams and columns in a wooden structure residential building according to one embodiment of the present invention;

[0033] Figure 2 1 is a schematic structural diagram from another angle of a reinforcement device for mortise and tenon joints of beams and columns in a wooden structure residential building according to one embodiment of the present invention;

[0034] Figure 3 is a schematic structural diagram of a reinforcement device according to another embodiment of the present invention;

[0035] Figure 4 is a schematic structural diagram of a reinforcement device according to one embodiment of the present invention;

[0036] Figure 5 is a schematic structural diagram of a first connecting member according to an embodiment of the present invention;

[0037] Figure 6 is a schematic structural diagram of a second connecting member according to an embodiment of the present invention;

[0038] Figure 7 is a schematic structural diagram of a third connecting member according to an embodiment of the present invention.

[0039] Reference numerals:

[0040] 100-reinforcement device, 200-wooden beam, 300-wooden column, 10-first reinforcement plate, 20-second reinforcement plate, 30-second connecting piece, 40-third connecting piece, 50-first connecting piece, 60-energy dissipation structure, 11-first body, 12-first energy dissipation plate, 21-second energy dissipation plate, 22-second body. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0044] Unless otherwise specified or limited, the terms "connection" and "installation" should be interpreted broadly. For example, they can refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art should be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] Figure 1 1 is a schematic structural diagram of a reinforcement device 100 for mortise and tenon joints of beams and columns of a wooden structure residential building according to an embodiment of the present invention, taken from one angle. Figure 2 1 is a schematic structural diagram of another angle of a reinforcement device 100 for mortise and tenon joints of beams and columns of a wooden structure residential building according to an embodiment of the present invention. Figure 3 is a schematic structural diagram of a reinforcement device 100 according to another embodiment of the present invention. Figure 4 FIG is a schematic structural diagram of a reinforcement device 100 according to an embodiment of the present invention. Figures 1 to 4As shown, in a specific embodiment, a wooden structure includes wooden columns 300 and wooden beams 200 connected by mortise and tenon joints. The wooden columns 300 are arranged vertically, and the wooden beams 200 are arranged horizontally. A reinforcement device 100 includes a first reinforcement plate 10 and a second reinforcement plate 20. The first reinforcement plate 10 has a first body 11 and multiple groups of first energy-absorbing plate assemblies extending outward from the first body 11. One end of the first body 11 is pivotally connected to the bottom end of the wooden beam 200, and the other end extends obliquely downward toward the wooden column 300. Each group of first energy-absorbing plate assemblies includes at least one first energy-absorbing plate 12. The second reinforcement plate 20 has a second body 22 and multiple groups of second energy-absorbing plate assemblies extending outward from the second body 22. One end of the second body 22 is pivotally connected to the side end of the wooden column 300, and the other end extends obliquely upward toward the wooden beam 200. Each group of second energy-absorbing plate assemblies includes at least one second energy-absorbing plate 21. Each set of first energy-consuming plate groups is connected to a set of second energy-consuming plate groups to form an energy-consuming structure 60 . The energy-consuming structure 60 is located between the first body 11 and the second body 22 .

[0047] Through the design of the reinforcement device 100 in this embodiment, when an earthquake occurs, the first energy absorbing plate 12 and the second energy absorbing plate 21 will collide and deform to participate in friction energy consumption, offsetting part of the force exerted by the earthquake on the wooden structure, which is beneficial to improving the shock absorption performance of the beam-column node, reducing the influence of the earthquake on the wooden structure, and thus effectively protecting the wooden structure.

[0048] In some embodiments, taking the middle node of a wooden column in an ancient building in Suzhou as an example, the diameter of the wooden column 300 is 180 mm, and the height and width of the wooden beam 200 are 200 mm and 150 mm, respectively, with a size of 150 mm×200 mm.

[0049] In some embodiments, there is a first preset distance between the end of the first body 11 away from the wooden beam 200 and the wooden column 300, and there is a second preset distance between the end of the second body 22 away from the wooden column 300 and the wooden beam 200. The first preset distance and the second preset distance can be determined by mechanical calculation, that is, it does not affect the original force transmission of the mortise and tenon joint, and can effectively transmit the load.

[0050] In some embodiments, the first preset distance ranges from 750 mm to 1000 mm, such as 750 mm, 800 mm, 900 mm, or 1000 mm, and the second preset distance ranges from 750 mm to 1000 mm, such as 750 mm, 800 mm, 900 mm, or 1000 mm. The first and second preset distances are generally adjusted based on the size of the bay, typically being approximately 1 / 4 to 1 / 3 of the bay length.

[0051] In some embodiments, the first body 11 is connected to the first energy consumption plate 12 by welding, and the first body 11 and the first energy consumption plate 12 are arranged perpendicularly. The second body 22 is connected to the second energy consumption plate 21 by welding, and the second body 22 and the second energy consumption plate 21 are arranged perpendicularly. In some embodiments, all first energy consumption plates 12 have the same size, and all second energy consumption plates 21 have the same size.

[0052] In some embodiments, the spacing between two adjacent energy dissipation structures 60 in all the energy dissipation structures 60 is equal or unequal, which can be specifically designed according to design requirements.

[0053] In some embodiments, the spacing d between adjacent energy dissipation structures 60 is equal, where d = 0.5H, where H is the cross-sectional height of the wooden beam 200, and 200 mm ≤ d ≤ 300 mm. This embodiment designs the energy dissipation structures 60 at equal distances, ensuring that the stiffness of each energy dissipation structure 60 is substantially uniform. When a node is subjected to lateral vibration, each energy dissipation component dissipates energy sequentially, achieving hierarchical energy dissipation.

[0054] When the node is subjected to lateral vibration, the first energy-dissipating structure 60 close to the wooden column 300 is the first to undergo buckling deformation. After it reaches a certain deformation degree, the second energy-dissipating structure 60 starts to deform, and so on. Through the sequential action of multiple energy-dissipating structures 60, progressive energy dissipation is formed, and finally the last energy-dissipating structure 60 provides a certain ultimate bearing capacity guarantee.

[0055] This embodiment can significantly improve the resistance of the mortise and tenon joint to disengagement and pulling out, and can give full play to the energy consumption capacity of the mortise and tenon joint to a greater extent, thereby reducing secondary damage to the wooden structure.

[0056] In some embodiments, each first energy consumption plate group includes two first energy consumption plates 12 arranged in parallel and spaced apart, and each second energy consumption plate group includes one second energy consumption plate 21. One second energy consumption plate 21 is located between the two first energy consumption plates 12 and is connected to both first energy consumption plates 12. In other embodiments, the number of first energy consumption plates 12 and second energy consumption plates 21 can be determined according to specific design requirements.

[0057] In other embodiments, each first energy consumption plate group includes one first energy consumption plate 12 , each second energy consumption plate group includes two second energy consumption plates 21 arranged in parallel and spaced apart, and one first energy consumption plate 12 is located between the two second energy consumption plates 21 and is connected to both second energy consumption plates 21 .

[0058] See also Figure 3In some embodiments, the spacing between the second energy dissipation plate 21 and the two first energy dissipation plates 12 in the energy dissipation structure 60 is equal. As the distance from the wood column 300 to the wood beam 200 increases, the spacing between the second energy dissipation plates 21 and the two first energy dissipation plates 12 in the multiple energy dissipation structures 60 gradually increases. For example, as the distance from the wood beam 200 to the wood column 300 increases, the spacing between the second energy dissipation plates 21 and the two first energy dissipation plates 12 in the first energy dissipation structure 60 is 10 mm, while the spacing between the second energy dissipation plates 21 and the two first energy dissipation plates 12 in the second energy dissipation structure 60 is 20 mm. The same applies to subsequent energy dissipation structures 60.

[0059] In some embodiments, the distance between the second energy consuming plate 21 and the two first energy consuming plates 12 in the energy consuming structure 60 is equal, and the distance is S, and the value range of S is 10mm-30mm. Figure 1 and Figure 2 In some embodiments, the distances between the second energy consuming plate 21 and the two first energy consuming plates 12 in the energy consuming structure 60 are not equal.

[0060] Specifically, the two first energy dissipation panels 12 in the energy dissipation structure 60 are an outer energy dissipation panel and an inner energy dissipation panel, respectively. The outer energy dissipation panel is located above the second energy dissipation panel 21, while the inner energy dissipation panel is located below the second energy dissipation panel 21. Along the direction from the wooden column 300 to the wooden beam 200, the spacing between the inner energy dissipation panels and the second energy dissipation panels 21 in the multiple energy dissipation structures 60 gradually increases, while the spacing between the outer energy dissipation panels and the second energy dissipation panels 21 gradually decreases. Here, the two first energy dissipation panels 12 and the one second energy dissipation panel 21 form a "sandwich" structure. In each energy dissipation structure 60, the first energy dissipation panel 12 closest to the wooden column 300 is the inner energy dissipation panel, while the first energy dissipation panel 12 farther from the wooden column 300 is the outer energy dissipation panel.

[0061] In some embodiments, along the wood column 300 toward the wood beam 200, the spacing ratio between the inner energy dissipation panels and the second energy dissipation panels 21 in the multiple energy dissipation structures 60 is 1:1.2:1.5, gradually increasing. Here, the inner energy dissipation panels are 50 mm thick and 200 mm long. The spacing ratio between the outer energy dissipation panels and the second energy dissipation panels 21 in the multiple energy dissipation structures 60 is 1:0.8:0.6, gradually decreasing. In other embodiments, the increasing and decreasing ratios can be determined based on design requirements.

[0062] In some embodiments, along the direction from the wood column 300 to the wood beam 200 , the stiffness of the plurality of inner energy absorbing panels increases sequentially, and the stiffness of the plurality of outer energy absorbing panels decreases sequentially.

[0063] In some embodiments, there are four energy dissipation structures 60. Along the direction from the wood column 300 to the wood beam 200, the stiffnesses of the multiple inner energy dissipation panels are sequentially K1, K2, K3, and K4, and the stiffnesses of the multiple outer energy dissipation panels are sequentially K1', K2', K3', and K4', where K1 < K2 < K3 < K4, and K1' > K2' > K3' > K4'. Along the direction from the wood column 300 to the wood beam 200, the initial yield displacement angle of the first inner energy dissipation panel is 0.01 rad, the starting displacement angle of the second inner energy dissipation panel is 0.03 rad, and the ultimate displacement angle of the outer energy dissipation panel is 0.05 rad.

[0064] The graded energy dissipation mechanism of this embodiment is as follows: when the node is subjected to lateral vibration, the first inner energy dissipation panel along the direction from the wooden column 300 toward the wooden beam 200 undergoes buckling deformation first. Once it has fully become plastic, the second inner energy dissipation panel begins to deform, and so on. Through the sequential failure of multiple groups of inner energy dissipation panels, progressive energy dissipation is achieved, and finally, the outer energy dissipation panels provide the ultimate bearing capacity. This embodiment achieves the seismic resistance goal of "energy dissipation first, load bearing later" through the stiffness gradient design of the asymmetric energy dissipation panels, improving the ductility and energy dissipation capacity of the node.

[0065] In this embodiment, the graded energy dissipation mechanism targets Level I (small earthquakes): when the displacement D of the first inner energy dissipation panel along the column 300 toward the beam 200 is ≤ 15mm, the first inner energy dissipation panel buckles (dissipating energy by 45%), with a stiffness of K1 = 5kN / mm. Level II (moderate earthquakes): when the displacement D is 15mm < ≤ 18mm, the second inner energy dissipation panel activates, with a cumulative energy dissipation ratio of 75%, and a stiffness of K2 = 8kN / mm. Level III (large earthquakes): when the displacement D is greater than 22mm, the outer energy dissipation panel's stiffness K3' = 12kN / mm, preventing node failure. This embodiment, through its three-level stiffness gradient, improves energy dissipation capacity by 1.8 times compared to traditional energy dissipation structures.

[0066] In some embodiments, the second energy consumption plate 21 is made of high-strength steel, such as Q420B, Q460C, and Q550D, and the first energy consumption plate 12 is made of steel plates with relatively low strength, such as Q235B, Q235C, Q235D, Q345A, Q345B, and Q345C, so as to achieve the purpose of grading energy consumption due to shock damage of the first energy consumption plate 12 while the second energy consumption plate 21 is not damaged.

[0067] In some embodiments, both the first energy consumption plate 12 and the second energy consumption plate 21 are provided with mounting holes, through which the first connecting member 50 passes, thereby connecting the first energy consumption plate 12 and the second energy consumption plate 21. The first energy consumption plate 12 and the second energy consumption plate 21 are configured to rotate relative to the first connecting member 50. The reinforcement device 100 also includes a second connecting member 30 and a third connecting member 40. The second connecting member 30 is mounted on the wooden beam 200 and is rotatably connected to the first body 11. The third connecting member 40 is mounted on the wooden column 300 and is rotatably connected to the second body 22.

[0068] Figure 5 FIG is a schematic structural diagram of a first connecting member according to an embodiment of the present invention. Figure 5 As shown, in some embodiments, the first connecting member 50 is a special bolt with a three-section structure: a threadless, free-sliding section in the middle and threaded anchor sections at both ends. An elastic gasket is provided between the nut and the inner or outer energy dissipation plate, allowing the special bolt to rotate within a ±5° range to accommodate the flexible deformation of the timber structure joint. It can be understood that the threaded end of the special bolt, coupled with the nut, only serves to secure the first and second energy dissipation plates 12, 21 and does not prevent the first and second energy dissipation plates 12, 21 from colliding due to stress.

[0069] Specifically, the middle non-threaded free sliding section of the special bolt is a 16mm diameter steel pipe with a length of 30mm. M16 nuts are screwed into both ends. The gasket is a 5mm thick rubber pad (Shore hardness 60A), allowing the axial slippage of the bolt to be ≤15mm when the node rotates.

[0070] Figure 6 is a schematic structural diagram of a second connecting member according to an embodiment of the present invention, Figure 7 FIG is a schematic structural diagram of a third connecting member according to an embodiment of the present invention. Figure 6 and Figure 7 As shown, in some embodiments, the second connecting member 30 and the third connecting member 40 each include two parallel flat steels, which are designed according to the appearance of the wooden beam 200 and the wooden column 300, and surround the outer walls of the wooden beam 200 and the wooden column 300 respectively. Bolt holes are provided at both ends of the flat steel, which are connected by bolts. This is equivalent to using double C-shaped cold-bent steel to form a closed hoop, without penetrating the beams and columns, and the traditional process can be retained. Specifically, a 3mm thick rubber pad is provided on the contact surface between the flat steel and the wooden beam 200 and the wooden column 300. Here, the first body 11 is connected to the bolts below the wooden beam 200, and the second body 22 is connected to the bolts on the side of the wooden column 300.

[0071] In some embodiments, the width of the flat steel is greater than one-third of the height of the wooden beam 200, which can avoid stress concentration. The thickness of the flat steel is 8mm to 10mm. In this embodiment, when the earthquake level is high, the energy-absorbing structure 60 will bend and deform when the first energy-absorbing plate 12 and the second energy-absorbing plate 21 collide, participating in friction energy consumption, offsetting part of the force of the earthquake on the wooden structure, and helping to improve the energy consumption and shock absorption of the beam-column joints, reduce the impact of the earthquake on the structure itself, and thus effectively protect the main structure. In addition, the reinforcement method of this embodiment is concealed, which can play the role of authentic reinforcement and repair of the appearance of the wooden mortise and tenon joints of ancient buildings, and use suitable brackets to hide the reinforcement device 100 to achieve the effect of "repairing the old as it is".

[0072] Specifically, two 8mm-thick Q235B flat steel bars (400mm long and 80mm wide) were used to surround the wooden column 300. Holes with a diameter of 12mm were drilled at each end. These were then connected to the second body 22 of the second reinforcement plate 20 using M10×30 bolts, with a bolt spacing of 150mm. The two flat steel bars were fixed to the wooden beam 200 in the same manner. The flat steel bars were 300mm long and 70mm wide, with their edges 50mm from the beam ends.

[0073] This embodiment also provides a wooden structure, comprising wooden beams 200 and wooden columns 300. The wooden beams 200 are arranged horizontally, and the wooden columns 300 are arranged vertically and connected to the wooden beams 200 via mortise and tenon joints. Two reinforcement devices 100 according to any of the above embodiments are installed on opposite sides of the wooden columns 300 and below the wooden beams 200.

[0074] The installation steps for the reinforcement device 100 are as follows: Before installing this embodiment of the reinforcement device 100, the mortise and tenon joints of the wooden beams 200 and wooden columns 300 must be thoroughly inspected to ensure structural stability and a smooth surface. The required first connector 50, second connector 30, and third connector 40, along with the corresponding tools, must also be prepared. Furthermore, the displacement data at both ends of the connection between the wooden beam 200 and the wooden column 300 must be accurately calculated in advance based on the stress characteristics of the wooden structure and the desired reinforcement effect.

[0075] Based on the calculated displacement data, each set of first and second energy dissipation plates is welded to the first and second bodies 11, 22, respectively, in a factory setting, thereby forming the first reinforcement plate 10 and the second reinforcement plate 20, respectively. Strict welding procedures are required to ensure weld quality and a secure connection between the energy dissipation plate assembly and the first and second bodies 11, 22. Furthermore, the positional accuracy after welding must meet design requirements to achieve the desired energy dissipation and reinforcement functions.

[0076] After welding is complete, the on-site installation phase begins. First, install the first reinforcement plate 10. Using the second connector 30, place one end of the first body 11 of the first reinforcement plate 10 over the bottom end of the wooden beam 200. Adjust the first body 11 to allow for flexible rotation. Then, tilt the other end of the first body 11 downward toward the wooden column 300 and extend it to the desired position. Next, install the second reinforcement plate 20. Using the third connector 40, place one end of the second body 22 of the second reinforcement plate 20 over the side of the wooden column 300. After ensuring free rotation, tilt the other end of the second body 22 upward toward the wooden beam 200.

[0077] At this point, the welded first and second energy dissipation plates 12, 21 are installed in place along with the first and second reinforcement plates 10, 20. The first connectors 50 are then used to connect the corresponding first and second energy dissipation plates 12, 21 to form the energy dissipation structure 60. Finally, two reinforcement devices 100 are symmetrically installed on opposite sides of the wooden column 300, ensuring that they are both positioned below the wooden beam 200. Carefully check that all components are securely connected and that the rotating parts are flexible. After installation, the entire reinforcement device 100 is debugged to ensure that it is effectively performing its reinforcement and energy dissipation functions.

[0078] This embodiment has great advantages over ordinary ancient building reinforcement methods. Traditional reinforcement methods, such as those using angle steel, steel plates, steel bars, iron nails, etc. as reinforcement materials, will greatly increase the bending stiffness of the nodes, causing the nodes to become "super rigid". This change has greatly changed the original basic stress characteristics and structural characteristics of the wooden structure of the ancient building, making the mortise and tenon connection structure no longer a semi-rigid structure. When an earthquake occurs, this change reduces the energy consumption capacity of the structure, which is not conducive to earthquake resistance. The present invention utilizes the limited bite and graded energy consumption effect of different distances between different energy consumption plates to greatly improve the energy consumption capacity of the nodes.

[0079] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A reinforcement device for the mortise and tenon joints of beams and columns of wooden residential buildings, characterized in that: The wooden structure includes wooden columns and wooden beams connected by mortise and tenon joints, the wooden columns are arranged vertically, and the wooden beams are arranged horizontally. The reinforcement device includes: A first reinforcement plate comprises a first body and a plurality of first energy-absorbing plate assemblies extending outward from the first body, wherein one end of the first body is rotatably connected to the bottom end of the wooden beam, and the other end extends obliquely downward toward the wooden column, and each first energy-absorbing plate group comprises at least one first energy-absorbing plate; The second reinforcement plate comprises a second body and a plurality of second energy absorbing plate groups extending outward from the second body, wherein one end of the second body is rotatably connected to the side end of the wooden column, and the other end extends obliquely upward toward the wooden beam, and each group of the second energy absorbing plate groups includes at least one second energy absorbing plate; Each group of the first energy-consuming plate groups is correspondingly connected to a group of the second energy-consuming plate groups to form an energy-consuming structure, and the energy-consuming structure is located between the first body and the second body.

2. The reinforcement device according to claim 1, characterized in that: The distances between any two adjacent energy dissipation structures in all the energy dissipation structures are equal or unequal.

3. The reinforcement device according to claim 2, characterized in that: Each set of the first energy consumption plates includes two first energy consumption plates arranged in parallel and at intervals, and each set of the second energy consumption plates includes one second energy consumption plate, which is located between the two first energy consumption plates and connected to both first energy consumption plates.

4. The reinforcement device according to claim 3, characterized in that: The distance between the second energy consuming plate and the two first energy consuming plates in the energy consuming structure is equal; Along the direction from the wooden column to the wooden beam, the distance between the second energy absorbing plate and the two first energy absorbing plates in the plurality of energy absorbing structures gradually increases.

5. The reinforcement device according to claim 3, characterized in that: The distances between the second energy consumption plate and the two first energy consumption plates in the energy consumption structure are not equal.

6. The reinforcement device according to claim 5, characterized in that: The two first energy consumption plates in the energy consumption structure are respectively an outer energy consumption plate and an inner energy consumption plate, the outer energy consumption plate is located above the second energy consumption plate, and the inner energy consumption plate is located below the second energy consumption plate; Along the direction from the wooden column to the wooden beam, the distance between the inner energy absorbing plate and the second energy absorbing plate in the plurality of energy absorbing structures gradually increases, and the distance between the outer energy absorbing plate and the second energy absorbing plate gradually decreases; Along the direction from the wooden column to the wooden beam, the stiffness of the plurality of inner energy absorbing panels increases sequentially, and the stiffness of the plurality of outer energy absorbing panels decreases sequentially.

7. The reinforcement device according to claim 6, characterized in that: The distance between the two second energy consumption plates in two adjacent energy consumption structures is greater than the distance between the two inner energy consumption plates and smaller than the distance between the two outer energy consumption plates.

8. The reinforcement device according to any one of claims 1 to 7, characterized in that: The first energy consumption plate and the second energy consumption plate are both provided with mounting holes, and the first connecting member is passed through the mounting holes to connect the first energy consumption plate and the second energy consumption plate. The first energy consumption plate and the second energy consumption plate are configured to be rotatable relative to the first connecting member.

9. The reinforcement device according to claim 8, characterized in that: The reinforcement device further comprises: a second connecting member, sleeved on the wooden beam and rotatably connected to the first body; The third connecting member is sleeved on the wooden column and is rotatably connected to the second body.

10. A wooden structure, characterized in that: include: Wooden beams, arranged in a horizontal direction; Wooden columns are arranged in a vertical direction and connected to the wooden beams through mortise and tenon joints; Two reinforcement devices according to any one of claims 1 to 9, wherein the two reinforcement devices are respectively installed on opposite sides of the wooden column and below the wooden beam.

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