Staged energy consumption reinforcing device of wood structure and wood structure

Abstract

The invention provides a graded energy consumption reinforcing device of a wood structure and the wood structure, and relates to the technical field of wood structures. The graded energy consumption reinforcing device comprises a first reinforcing plate and a second reinforcing plate, one end of the first reinforcing plate is rotationally connected with the bottom end of the wood beam, the other end of the first reinforcing plate obliquely extends downwards towards the wood column, one end of the second reinforcing plate is rotationally connected with the side end of the wood column, and the other end of the second reinforcing plate obliquely extends upwards towards the wood beam. The multiple energy consumption plates are arranged between the first reinforcing plate and the second reinforcing plate at intervals and are obliquely arranged. The inclination angles of the multiple energy consumption plates are different, the lengths of the multiple energy consumption plates are gradually increased in the direction from the wood column to the wood beam, the included angles between the multiple energy consumption plates and the second reinforcing plates are gradually increased or gradually decreased, when an earthquake occurs, the longest energy consumption plate is firstly stressed, and after a certain angle is reached, the next energy consumption plate is stressed, so that graded energy consumption is achieved, and the energy consumption efficiency is improved. The energy dissipation capacity of the joint can be greatly improved, and the stability of a wood structure in an earthquake is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wood structures, in particular to a hierarchical energy dissipation reinforcement device for wood structures and the wood structure. Background Art

[0002] In timber structures, the mortise and tenon joint is a typical semi-rigid connection. However, this connection method is not perfect and has inherent limitations. Its load-bearing capacity and bending stiffness are relatively low compared to other ideal connection methods. When timber structures are exposed to the elements for long periods of time, subjected to erosion from wind, sun, rain, or even to destructive emergencies such as earthquakes, mortise and tenon joints can easily become loose or even deform. Once these deformations occur, they are usually unable to automatically return to their original state, resulting in residual deformations. Over time, these residual deformations continue to accumulate and grow. Ultimately, this cumulative effect can cause the entire timber structure to experience serious problems such as tilting and skewing, greatly threatening the safety and stability of the structure. Given the crucial role that mortise and tenon joints play in the safety of timber structures, they have become a key area of ​​focus and attention during timber structure repair and reinforcement work.

[0003] Traditional timber-framed dwellings rely on mortise and tenon joints as their core load-transmitting components. However, these joints have low lateral stiffness and weak energy dissipation capacity, making them susceptible to joint pullout and splitting during earthquakes. Existing reinforcement methods are inadequate for earthquake classification requirements, prone to overall failure under earthquake action, and exhibit poor reinforcement effectiveness. Therefore, a graded energy dissipation reinforcement device with improved effectiveness and meeting earthquake classification requirements is urgently needed. Summary of the Invention

[0004] An object of the present invention is to provide a graded energy dissipation reinforcement device for a wooden structure, so as to solve the technical problem of poor reinforcement effect of wooden structures in the prior art.

[0005] Another further object of the present invention is to provide a wooden structure having the above-mentioned graded energy dissipation reinforcement device.

[0006] In particular, the present invention provides a hierarchical energy dissipation reinforcement device for a timber structure, wherein the timber structure comprises timber columns and timber beams connected by mortise and tenon joints, wherein the timber columns are arranged vertically and the timber beams are arranged horizontally, and the hierarchical energy dissipation reinforcement device comprises:

[0007] a first reinforcing plate, one end of which is rotatably connected to the bottom end of the wooden beam, and the other end of which extends obliquely downward toward the wooden column;

[0008] A second reinforcing plate, one end of which is rotatably connected to the side end of the wooden column, and the other end of which extends obliquely upward toward the wooden beam;

[0009] a plurality of energy-consuming plates, wherein the plurality of energy-consuming plates are arranged at intervals between the first reinforcing plate and the second reinforcing plate, and two ends of the energy-consuming plates are connected to the first reinforcing plate and the second reinforcing plate respectively;

[0010] The plurality of energy consumption plates are all arranged tilted, and the tilt angles of the plurality of energy consumption plates are different;

[0011] Along the direction from the wooden column to the wooden beam, the lengths of the plurality of energy-absorbing panels gradually become longer, and the angles between the plurality of energy-absorbing panels and the second reinforcing panels gradually become larger or smaller.

[0012] Optionally, along the direction from the wooden column to the wooden beam, the angle between the energy dissipation plate and the second reinforcement plate portion above it gradually decreases.

[0013] Optionally, along the direction from the wooden column to the wooden beam, the angle between the energy dissipation plate and the second reinforcement plate portion above it gradually increases.

[0014] Optionally, the plurality of energy consumption panels are divided into an inner energy consumption panel group, a middle energy consumption panel group and an outer energy consumption panel group along the direction from the wooden column to the wooden beam, and each of the inner energy consumption panel group, the middle energy consumption panel group and the outer energy consumption panel group includes at least one energy consumption panel;

[0015] The angle between the energy consumption plate in the inner energy consumption plate group and the second reinforcement plate portion above it is in the range of 50° to 60°; the angle between the energy consumption plate in the middle energy consumption plate group and the second reinforcement plate portion above it is in the range of 30° to 55°; the angle between the energy consumption plate in the outer energy consumption plate group and the second reinforcement plate portion above it is in the range of 5° to 35°.

[0016] Optionally, the difference in inclination angle between two adjacent energy consumption plates among the plurality of energy consumption plates is D, wherein 5°≤D≤15°.

[0017] Optionally, the distances between the connection points of two adjacent energy dissipation plates and the second reinforcement plate are the same.

[0018] Optionally, both ends of the energy dissipation plate are rotatably connected to the first reinforcement plate and the second reinforcement plate respectively.

[0019] Optionally, waist-shaped holes are provided at both ends of the energy dissipation plate and arranged along its extension direction, so that the energy dissipation plate can slide along its extension direction.

[0020] Optionally, the energy dissipation plate is square.

[0021] In particular, the present invention further provides a wooden structure comprising:

[0022] Wooden beams, arranged in a horizontal direction;

[0023] Wooden columns are arranged in a vertical direction and connected to the wooden beams through mortise and tenon joints;

[0024] The two aforementioned graded energy dissipation reinforcement devices are respectively installed on opposite sides of the wooden column and below the wooden beam.

[0025] The graded energy-absorbing reinforcement device of the present invention includes a first reinforcement plate and a second reinforcement plate. One end of the first reinforcement plate is rotatably connected to the bottom end of the wooden beam, and the other end extends obliquely downward toward the wooden column. One end of the second reinforcement plate is rotatably connected to the side end of the wooden column, and the other end extends obliquely upward toward the wooden beam. A plurality of energy-absorbing plates are arranged between the first reinforcement plate and the second reinforcement plate at intervals, and are all arranged obliquely. The inclination angles of the plurality of energy-absorbing plates are different. Along the direction from the wooden column to the wooden beam, the lengths of the plurality of energy-absorbing plates gradually become longer, and the angles between the plurality of energy-absorbing plates and the second reinforcement plate gradually become larger or smaller. When an earthquake occurs, the longest energy-absorbing plate is subjected to force first. After reaching a certain angle, the next energy-absorbing plate is subjected to force, thereby realizing graded energy absorption, which can greatly improve the energy absorption capacity of the node and effectively enhance the stability of the wooden structure during earthquakes.

[0026] 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

[0027] 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:

[0028] Figure 1 is a schematic structural diagram of a hierarchical energy dissipation reinforcement device for a wooden structure according to one embodiment of the present invention;

[0029] Figure 2 is a schematic structural diagram of a hierarchical energy dissipation reinforcement device for a wooden structure according to another embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of an energy dissipation panel according to one embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a first connecting member according to an embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of a second connecting member according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 100-graded energy-absorbing reinforcement device, 200-wooden beam, 300-wooden column, 10-first reinforcement plate, 20-second reinforcement plate, 30-energy-absorbing plate, 40-first connecting piece, 50-second connecting piece. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Figure 1 is a schematic structural diagram of a hierarchical energy dissipation reinforcement device 100 for a wooden structure according to an embodiment of the present invention. Figure 2is a schematic structural diagram of a hierarchical energy dissipation reinforcement device 100 for a wooden structure according to another embodiment of the present invention. Figure 3 FIG is a schematic structural diagram of an energy dissipation plate 30 according to an embodiment of the present invention. Figures 1 to 3 As shown, in some embodiments, a timber structure includes a timber column 300 and a timber beam 200 connected by a mortise and tenon joint. The timber column 300 is arranged vertically, and the timber beam 200 is arranged horizontally. The graded energy dissipation reinforcement device 100 for the timber structure includes a first reinforcement plate 10, a second reinforcement plate 20, and a plurality of energy dissipation plates 30. One end of the first reinforcement plate 10 is pivotally connected to the bottom end of the timber beam 200, and the other end extends obliquely downward toward the timber column 300. One end of the second reinforcement plate 20 is pivotally connected to the side end of the timber column 300, and the other end extends obliquely upward toward the timber beam 200. The plurality of energy dissipation plates 30 are spaced apart between the first reinforcement plate 10 and the second reinforcement plate 20, and are connected to the first reinforcement plate 10 and the second reinforcement plate 20 at their respective ends. The plurality of energy dissipation plates 30 are arranged obliquely, and the inclination angles of the plurality of energy dissipation plates 30 vary. Along the direction from the wooden column 300 to the wooden beam 200 , the lengths of the plurality of energy dissipation panels 30 gradually increase, and the angles between the plurality of energy dissipation panels 30 and the second reinforcement panel 20 gradually increase or decrease.

[0041] In this embodiment, when an earthquake occurs, the longest energy dissipation panel 30 is first subjected to force. After reaching a certain angle, the next energy dissipation panel 30 is subjected to force, thereby achieving graded energy dissipation, which can greatly improve the energy dissipation capacity of the node and effectively enhance the stability of the wooden structure during earthquakes.

[0042] See also Figure 1 In some embodiments, the angle between the energy dissipation panels 30 and the portion of the second reinforcement panel 20 above them gradually decreases as the wood column 300 moves toward the wood beam 200. This embodiment is suitable for situations where the wood beams 200 on both sides vibrate upward. In other words, all the energy dissipation panels 30 are tilted toward the wood beam 200. The tilt angle of the energy dissipation panels 30 increases the rigidity against pressure and prevents buckling under compression.

[0043] In some embodiments, the plurality of energy dissipation panels 30 are divided into an inner energy dissipation panel group, a middle energy dissipation panel group, and an outer energy dissipation panel group along the wood column 300 toward the wood beam 200. Each of the inner, middle, and outer energy dissipation panel groups includes at least one energy dissipation panel 30. The angle between an energy dissipation panel 30 in the inner energy dissipation panel group and the portion of the second reinforcement panel 20 above it ranges from 50° to 60°, such as 50°, 55°, or 60°. The angle between an energy dissipation panel 30 in the middle energy dissipation panel group and the portion of the second reinforcement panel 20 above it ranges from 30° to 55°, such as 30°, 40°, 50°, or 55°. The angle between an energy dissipation panel 30 in the outer energy dissipation panel group and the portion of the second reinforcement panel 20 above it ranges from 5° to 35°, such as 5°, 10°, 15°, 20°, 25°, 30°, or 35°.

[0044] See also Figure 2 In some embodiments, the angle between the energy dissipation plate 30 and the portion of the second reinforcement plate 20 above it gradually increases as the wood column 300 moves toward the wood beam 200. This embodiment is suitable for situations where the wood beams 200 on both sides vibrate downward. In other words, all the energy dissipation plates 30 are tilted toward the wood column 300. This inclination optimizes the tension transmission path and enhances the efficiency of tensile energy dissipation.

[0045] It can be understood that in both embodiments, the energy dissipation panels 30 away from the wooden pillars 300 are gradually lengthened and the inclination angles are gradually increased. The difference is that the inclination directions of the energy dissipation panels 30 are different, which can be determined according to design requirements.

[0046] In some embodiments, the steel strength of the energy dissipation panels 30 is positively correlated with their degree of inclination. This means that longer energy dissipation panels 30 have lower steel strength, while shorter energy dissipation panels 30 have higher steel strength. This embodiment, through the design of a strength gradient, ensures that the energy dissipation panels 30 yield and dissipate energy in a predetermined order under earthquake action, achieving graded energy dissipation. For example, the energy dissipation panels 30 of the inner energy dissipation panel group can be made of high-strength steel such as Q420B, Q460C, or Q550D. The energy dissipation panels 30 of the middle energy dissipation panel group can be made of relatively lower-strength steel such as Q345A, Q345B, or Q345C. The energy dissipation panels 30 of the outer energy dissipation panel group can be made of even lower-strength steel such as Q235B, Q235C, or Q235D.

[0047] In this embodiment, the longer energy dissipation panels 30 dissipate energy first during a primary earthquake, the middle energy dissipation panels 30 participate in energy dissipation during a secondary earthquake, and the shorter energy dissipation panels 30 yield during a high-level earthquake, thereby forming a three-stage energy dissipation mechanism.

[0048] In some embodiments, the difference in tilt angle between two adjacent energy consumption plates 30 among the plurality of energy consumption plates 30 is D, wherein 5°≤D≤15°, for example, it may be 5°, 10°, or 15°.

[0049] In some embodiments, the distances between the connection points of two adjacent energy dissipation plates 30 and the second reinforcement plate 20 are the same. In other embodiments, the distance between two adjacent energy dissipation plates 30 can also be determined according to design requirements.

[0050] In some embodiments, both ends of the energy dissipation plate 30 are rotatably connected to the first reinforcement plate 10 and the second reinforcement plate 20. Here, the energy dissipation plate 30 needs to be designed to be able to rotate relative to the first reinforcement plate 10 and the second reinforcement plate 20 by an angle of 2°-5°.

[0051] In some embodiments, the energy dissipation plate 30 is provided with waist-shaped holes arranged along its extension direction at both ends to enable the energy dissipation plate 30 to slide along its extension direction. The waist-shaped holes are designed to allow the energy dissipation plate 30 to move 3mm-5mm along its extension direction, thereby preventing stress concentration from causing premature fracture of the energy dissipation plate 30 and ensuring continuous energy dissipation.

[0052] In some embodiments, the energy dissipation plate 30 is square. In other embodiments, the shape of the energy dissipation plate 30 can also be determined according to specific design requirements.

[0053] In some embodiments, the thickness of the first reinforcement plate 10 and the second reinforcement plate 20 is 6mm-12mm, and the length is 1 / 3-1 / 2 of the height of the wooden column 300. The bottom surfaces of the first reinforcement plate 10 and the second reinforcement plate 20 are provided with anti-slip teeth, which can increase the friction with the wooden beam 200 and the wooden column 300.

[0054] The total energy dissipation bearing capacity design value of the graded energy dissipation reinforcement device 100 of this embodiment is 30% to 60% of the ultimate bearing capacity of the mortise and tenon joint, ensuring that the wood structure yields and dissipates energy before it is affected by an earthquake, thereby protecting the integrity of the traditional wood structure.

[0055] In some embodiments, a first preset distance is provided between an end of the first reinforcing plate 10 away from the wood beam 200 and the wood column 300, and a second preset distance is provided between an end of the second reinforcing plate 20 away from the wood column 300 and the wood beam 200. The first preset distance ranges from 350 mm to 480 mm, such as 350 mm, 400 mm, 450 mm, or 480 mm, and the second preset distance ranges from 350 mm to 480 mm, such as 350 mm, 400 mm, 450 mm, or 480 mm, etc.

[0056] Figure 4 is a schematic structural diagram of a first connecting member 40 according to an embodiment of the present invention, Figure 5 FIG is a schematic structural diagram of a second connecting member 50 according to an embodiment of the present invention. Figure 4 and Figure 5As shown, in some embodiments, the graded energy dissipation reinforcement device 100 further includes a first connector 40 and a second connector 50. The first connector 40 is mounted on the wooden beam 200 and is rotatably connected to the first reinforcement plate 10. The second connector 50 is mounted on the wooden column 300 and is rotatably connected to the second reinforcement plate 20. The first connector 40 and the second connector 50 each comprise two parallel flat steel bars. The flat steel bars are designed based on the shape 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 bars, allowing bolts to penetrate and connect them. This is equivalent to using double C-shaped cold-formed steel bars to form a closed hoop, eliminating the need to penetrate the beam and column, thus preserving traditional manufacturing processes. Specifically, a 3 mm thick rubber pad is provided on the contact surfaces between the flat steel bars and the wooden beam 200 and wooden column 300. Here, the first reinforcement plate 10 is bolted to the bottom of the wooden beam 200, while the second reinforcement plate 20 is bolted to the side of the wooden column 300. The first connecting member 40 and the second connecting member 50 are made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.

[0057] In some embodiments, the first connector 40 needs to be installed flush with the edge of the wooden beam 200, and the second connector needs to be installed flush with the edge of the wooden column 300, and the appearance needs to be coordinated with the traditional architectural style.

[0058] In some embodiments, the embodiment further provides a wooden structure comprising a wooden beam 200, a wooden column 300, and two graded energy dissipation reinforcement devices 100. The wooden beam 200 is arranged horizontally, and the wooden column 300 is arranged vertically and connected to the wooden beam 200 via mortise and tenon joints. The two graded energy dissipation reinforcement devices 100 are respectively installed on opposite sides of the wooden column 300 and below the wooden beam 200.

[0059] In some embodiments, the installation angle between the two first reinforcement plates 10 and the wooden beam 200 ranges from 40° to 50°, for example, 40°, 45°, or 50°, and the two first reinforcement plates 10 are symmetrically arranged along the wooden columns 300-300. The above installation angle range is derived from force analysis and simulation calculations of wooden structures under earthquakes.

[0060] This embodiment achieves "no damage in small earthquakes, repairable in medium earthquakes, and no collapse in large earthquakes" by designing the inclination angle of the energy dissipation plate 30 and combining it with the gradient design of the energy dissipation plate 30 , and can improve the energy dissipation efficiency by more than 40% compared with traditional reinforced structures.

[0061] The installation steps of the graded energy dissipation reinforcement device 100 are as follows: before installing this graded energy dissipation reinforcement device 100, the mortise and tenon joints of the wooden beams 200 and the wooden columns 300 must be carefully inspected to ensure that the structure is not loose and the surface is flat. At the same time, the matching first connecting members 40 and second connecting members 50, installation tools, and energy dissipation panels 30 and other components must be prepared.

[0062] First, the first reinforcement plate 10 and the second reinforcement plate 20 are installed. Use the first connecting piece 40 to firmly connect one end of the first reinforcement plate 10 to the bottom end of the wooden beam 200 to ensure that it can rotate flexibly, and then extend the other end downwardly in the direction of the wooden column 300 to the designed position. Similarly, use the second connecting piece 50 to rotatably connect one end of the second reinforcement plate 20 to the side end of the wooden column 300, and extend the other end upwardly in the direction of the wooden beam 200 to complete the basic installation of the first reinforcement plate 10 and the second reinforcement plate 20. Then install the energy-absorbing plate 30. According to the design requirements, multiple energy-absorbing plates 60 are arranged at intervals between the first reinforcement plate 10 and the second reinforcement plate 20. Use the connecting piece to pass through the waist-shaped holes at both ends of the energy-absorbing plate 60 to make it rotatably connected to the first reinforcement plate 10 and the second reinforcement plate 20 respectively. This ensures that the energy-absorbing plate 60 can rotate flexibly and can slide along the extension direction. During installation, the difference in inclination angles between adjacent energy dissipation panels 60 must be strictly controlled within a range of 5°-15°, and the distance between the connection points of two adjacent energy dissipation panels 60 and the second reinforcement panel 20 must be the same. Furthermore, the length of the energy dissipation panels 60 should be gradually increased from the wooden column 300 toward the wooden beam 200, and the angle between them and the second reinforcement panel 20 should be gradually increased or decreased according to design requirements. If the energy dissipation panels 60 are divided into inner, middle, and outer groups, the angle between the energy dissipation panels 60 in the inner group and the portion of the second reinforcement panel 20 above them must be 50°-60°, 30°-55° for the middle group, and 5°-35° for the outer group.

[0063] Finally, two graded energy dissipation reinforcement devices 100 are symmetrically installed on opposite sides of the wooden column 300, positioned below the wooden beam 200. After installation, the components are carefully checked for secure connections and for smooth rotation and sliding of the energy dissipation plates 60. The entire graded energy dissipation reinforcement device 100 is then debugged to ensure it is effectively performing its reinforcement and energy dissipation functions.

[0064] 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 hierarchical energy dissipation 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. The graded energy dissipation reinforcement device includes: a first reinforcing plate, one end of which is rotatably connected to the bottom end of the wooden beam, and the other end of which extends obliquely downward toward the wooden column; A second reinforcing plate, one end of which is rotatably connected to the side end of the wooden column, and the other end of which extends obliquely upward toward the wooden beam; a plurality of energy-consuming plates, wherein the plurality of energy-consuming plates are arranged at intervals between the first reinforcing plate and the second reinforcing plate, and two ends of the energy-consuming plates are connected to the first reinforcing plate and the second reinforcing plate respectively; The plurality of energy consumption plates are all arranged tilted, and the tilt angles of the plurality of energy consumption plates are different; Along the direction from the wooden column to the wooden beam, the lengths of the plurality of energy-absorbing panels gradually become longer, and the angles between the plurality of energy-absorbing panels and the second reinforcing panels gradually become larger or smaller.

2. The hierarchical energy dissipation reinforcement device according to claim 1, characterized in that: Along the direction from the wooden column to the wooden beam, the angle between the energy dissipation plate and the second reinforcement plate portion above it gradually decreases.

3. The hierarchical energy dissipation reinforcement device according to claim 1, characterized in that: Along the direction from the wooden column to the wooden beam, the angle between the energy dissipation plate and the second reinforcement plate portion above it gradually increases.

4. The hierarchical energy dissipation reinforcement device according to claim 2, characterized in that: The plurality of energy consumption panels are divided into an inner energy consumption panel group, a middle energy consumption panel group and an outer energy consumption panel group along the direction from the wooden column to the wooden beam, and each of the inner energy consumption panel group, the middle energy consumption panel group and the outer energy consumption panel group includes at least one energy consumption panel; The angle between the energy consumption plate in the inner energy consumption plate group and the second reinforcement plate portion above it is in the range of 50° to 60°; the angle between the energy consumption plate in the middle energy consumption plate group and the second reinforcement plate portion above it is in the range of 30° to 55°; the angle between the energy consumption plate in the outer energy consumption plate group and the second reinforcement plate portion above it is in the range of 5° to 35°.

5. The hierarchical energy dissipation reinforcement device according to any one of claims 1 to 4, characterized in that: The difference in inclination angle between two adjacent energy consumption plates among the plurality of energy consumption plates is D, wherein 5°≤D≤15°.

6. The hierarchical energy dissipation reinforcement device according to any one of claims 1 to 4, characterized in that: The distances between the connection points of two adjacent energy dissipation plates and the second reinforcement plate are the same.

7. The hierarchical energy dissipation reinforcement device according to any one of claims 1 to 4, characterized in that: Two ends of the energy dissipation plate are rotatably connected to the first reinforcement plate and the second reinforcement plate respectively.

8. The hierarchical energy dissipation reinforcement device according to claim 7, characterized in that: Both ends of the energy dissipation plate are provided with waist-shaped holes arranged along the extension direction thereof, so that the energy dissipation plate can slide along the extension direction thereof.

9. The hierarchical energy dissipation reinforcement device according to any one of claims 1 to 4, characterized in that: The energy consumption plate is square.

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 graded energy dissipation reinforcement devices according to any one of claims 1 to 9, wherein the two graded energy dissipation reinforcement devices are respectively installed on opposite sides of the wooden column and below the wooden beam.

Images