Adjustable through-beam timber structure reinforcement device based on cable and swing friction energy dissipation

Abstract

An adjustable through-beam type wood structure reinforcement device based on cables and swinging friction energy dissipation relates to the field of building technology. The present invention is to solve the problem that the reinforcement degree and effect cannot be adjusted in the existing through-beam type wood structure reinforcement technology. The present invention includes a swinging friction energy dissipation component, two node reinforcement components and two inclined cable components. The swinging friction energy dissipation component is fixedly connected to the middle part of a doufang, and the node reinforcement components are respectively fixedly connected to the mortise and tenon nodes at both ends of the doufang opposite to the swinging friction energy dissipation component. Each node reinforcement component is connected to the swinging friction energy dissipation component through an inclined cable component. The present invention is used for the reinforcement of through-beam type wood structures.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to an adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation. Background Art

[0002] Through-beam wooden structure: a light wooden frame, whose basic characteristics are "columns support purlins, and beams connect columns". Each row of columns is horizontally connected by through-beams that penetrate the column body to form a frame, and every two frames are connected by dou-fangs to form the spatial structure of the room in the direction of the span. Dou-fang refers to the square wooden component that mainly connects the two frames in the through-beam wooden structure. Through-beam wooden structure is a common type of house in traditional Chinese architecture. Its characteristics are that it uses wooden components such as wooden columns and wooden beams, and is built by connecting mortise and tenon joints. Mortise and tenon joints usually consist of two parts: the tenon and the mortise. The tenon is usually cut from a wooden beam, and the mortise is formed by drilling holes in the wooden column. The tenon is inserted into the mortise to form a node. The earthquake resistance of houses in rural areas is crucial to protecting the safety of people's lives and property. In recent years, through-beam wooden structures have shown certain earthquake resistance in earthquakes. Its anti-seismic performance specifically includes the failure mode, stiffness degradation, deformation and energy dissipation of the through-beam timber structure under earthquake action. Earthquake damage investigations show (Sun Baitao et al., 2014) that this structure can absorb and disperse earthquake energy through friction movement of mortise and tenon joints, slippage of column feet and overall deformation of the house when experiencing an earthquake, thereby reducing damage to the house and protecting the lives and property of residents.

[0003] Although the through-beam timber structure has certain seismic resistance, it still faces some problems and risks under earthquakes. On the one hand, the mortise and tenon joints are prone to damage such as disengagement, pulling out of the tenons, or even breaking under earthquakes; at the same time, the through-beam timber structure has low lateral stiffness along the house span direction, and is prone to tilting or even collapse. On the other hand, the infill wall is a vulnerable component of this type of structure, especially the brick-built infill wall between timber frames, which may experience out-of-plane damage such as flash cracking, partial fragmentation, or even collapse under earthquakes, causing casualties.

[0004] There have been related studies at home and abroad on the reinforcement technology of improving the overall seismic resistance of houses by locally reinforcing the mortise and tenon joints in through-beam wooden structures, but it still needs further optimization. The conventional reinforcement technology for mortise and tenon joints in through-beam wooden structures is to embed, wrap devices or add supports to the mortise and tenon joints to improve the stiffness and energy consumption capacity of local mortise and tenon joints. However, this reinforcement technology is often difficult to quantitatively adjust the strength and effect of the reinforcement, and the energy consumption parts are still concentrated at the mortise and tenon joints, resulting in insufficient reinforcement flexibility and low energy consumption efficiency. In addition, the existing technology will cause a certain degree of damage to the original structure, or the structure is too complex to be processed and installed.

[0005] There are three main reinforcement technologies for through-beam structures:

[0006] One is embedded reinforcement: In order to improve the seismic performance of the mortise and tenon joints of through-beam timber structures, existing research (Wang Shuangyong et al., 2021) proposed an embedded reinforcement technology for the mortise and tenon joints. Figure 1 As shown, Doufang 1 and Doufang 2 are inserted into the mortise and tenon joints in the column to form a mortise and tenon joint. This technology requires drilling a circular through hole in the center of the mortise and tenon joint and embedding a wooden pin in the circular through hole, or directly using a self-tapping screw to drill into the center of the mortise and tenon joint. The wooden pin or self-tapping screw participates in bearing the shearing effect formed by the Doufang and the column at the mortise and tenon joint. This technology can effectively improve the initial stiffness and ultimate bending moment of the mortise and tenon joint and enhance its seismic performance.

[0007] Although embedded reinforcement technology can effectively improve the seismic performance of mortise and tenon joints, it still has the following disadvantages and risks:

[0008] (1) Disturbance to the original structure: During the reinforcement process, holes need to be drilled in the original structure, which may cause the wood to split along the grain direction, resulting in irreversible damage.

[0009] (2) Limitations of stiffness adjustment: This technology cannot adjust the level of stiffness improvement, and its impact on the overall stiffness distribution of the building is unclear.

[0010] (3) Reinforcement effectiveness: The mortise and tenon joints of wooden structures that are in urgent need of reinforcement may be accompanied by severe material decay, which will affect the application effect of the reinforcement technology.

[0011] One is wrap-around reinforcement: For severely damaged mortise and tenon joints, existing research (Ge Ziyi et al.) has proposed a stiffness-adjustable assembly hoop reinforcement technology, the core of which is to use additional springs to adjust the stiffness of the steel hoop node. The assembly hoop is mainly composed of column hoop and beam hoop, and 5 bolts with springs are evenly arranged on both sides of the beam hoop. During installation (such as Figure 2 ), first install the column clamp and beam clamp on the wooden column and wooden beam, tighten them with bolts between flange plates, and then connect the flange plates of the column clamp and beam clamp with bolts with additional springs, and tighten the bolts to the position with appropriate stiffness. This technology overcomes the problem that the existing mortise and tenon joint reinforcement method is not easy to control the joint rotation stiffness, and ensures that the stiffness of severely damaged joints after reinforcement is similar to that of intact joints.

[0012] Although the assembly hoop reinforcement technology has its advantages in improving the seismic performance of mortise and tenon joints, it also has the following disadvantages:

[0013] (1) Technical and economic feasibility: The technical structure is relatively complex and difficult to manufacture, which will also result in a higher cost for this type of technology.

[0014] (2) Construction technology: The construction process of this technology has high technical requirements on workers, which increases the difficulty of construction.

[0015] (3) Limitations of reinforcement scope: The reinforcement area is limited to the mortise and tenon joints, the energy dissipation position is not ideal, and there is no protection for the filling wall between the wooden columns and wooden beams.

[0016] The other is to add support reinforcement: In order to improve the overall seismic performance of the frame, existing research (Zhou Dian, 2024) proposed a steel tie-supported wooden frame reinforcement technology. The steel tie-supported wooden frame consists of steel connectors and steel tie-ties. Two steel tie-ties are arranged crosswise on each wooden frame. The steel connector at each node is welded by a horizontal end plate, a vertical end plate and a rib plate. Figure 3 As shown. Holes are pre-opened at both ends of the ribs and steel tie bands of the steel connectors, and they are connected by blind rivets; the steel connectors at each node are connected to the wooden columns and beams by wood screws, and the wood screws are subjected to horizontal shear force and vertical tension at the same time under the tension of the steel tie bands. This reinforcement technology effectively increases the lateral stiffness and strength of the structure, and at the same time, the internal force of the structure is evenly distributed to the beams and columns through the steel tie bands, greatly reducing the degree of damage to the beam ends.

[0017] Although the steel tie-supported wood frame reinforcement technology has a significant effect in improving the seismic performance of the structure, it also has the following disadvantages:

[0018] (1) Construction technology: The reinforcement construction process is prone to cause excessive node stiffness and has certain construction difficulties.

[0019] (2) Disturbance to the original structure: The bolt holes required for connection will cause certain damage to the wooden components themselves.

[0020] (3) Reinforcement effectiveness: When the original structure is decayed or cracked, the connection effect of wood screws may be reduced.

[0021] Therefore, the above reinforcement technologies all have certain drawbacks during use and are difficult to meet usage requirements. Summary of the invention

[0022] In order to solve the problem that the reinforcement degree and effect in the existing through-beam type wood structure reinforcement technology cannot be adjusted, the present invention further proposes an adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation.

[0023] The technical solution adopted by the present invention to solve the above technical problems is:

[0024] The adjustable through-beam type wooden structure reinforcement device based on cables and swinging friction energy absorption includes a swinging friction energy absorption component, two node reinforcement components and two inclined cable components. The swinging friction energy absorption component is fixedly connected to the middle part of a doufang, and the node reinforcement components are respectively fixedly connected to the mortise and tenon nodes at both ends of the doufang opposite to the swinging friction energy absorption component. Each node reinforcement component is connected to the swinging friction energy absorption component through an inclined cable component.

[0025] Furthermore, the swing friction energy dissipation component includes an upper swing, a base plate, a connecting bolt and two ear plates. The base plate is fixedly connected to the end face of the dou beam, the ear plate is vertically fixedly connected to the front and rear sides of the upper end face of the base plate, the upper swing is inserted between the two ear plates, the connecting bolt is vertically inserted on the upper swing and the end faces of the two ear plates, and the upper swing can rotate around the connecting bolt, and the end of the connecting bolt is threadedly connected with a connecting nut.

[0026] Furthermore, the base plate is fixedly connected to the bracket by two right-angle U-shaped pipe clamp assemblies.

[0027] Furthermore, both left and right ends of the upper end surface of the bottom plate are fixedly connected to limit blocks, and the right-angle U-shaped pipe clamp assembly is arranged on the inner side of the limit block.

[0028] Furthermore, pull rings are respectively provided at the left and right ends of the upper swing.

[0029] Furthermore, the upper swing and the ear plate are both semicircular in shape, and the arc surface of the upper swing and the arc surface of the ear plate are arranged in opposite directions.

[0030] Further, the node reinforcement assembly includes a pair of column-wrapped fasteners and a pair of beam-wrapped fasteners. The pair of column-wrapped fasteners are relatively arranged on the side walls of the wooden columns in the mortise and tenon nodes close to the side of the swinging friction energy dissipation assembly, and the ends on the same side of the two column-wrapped fasteners are fixedly connected. The pair of beam-wrapped fasteners are relatively arranged on the side walls of the beam-wrapped fasteners in the mortise and tenon nodes close to the side of the swinging friction energy dissipation assembly, and the ends on the same side of the two beam-wrapped fasteners are fixedly connected, and the adjacent ends of the beam-wrapped fasteners and the column-wrapped fasteners are fixedly connected.

[0031] Furthermore, pull ears are provided on the inner end of the column-wrapping fastener and the outer end of the beam-wrapping fastener.

[0032] Furthermore, the inclined cable assembly includes a basket bolt and two steel strands, the basket bolt is fixed between the two steel strands, the outer end of one steel strand is fixed to the node reinforcement assembly, and the outer end of the other steel strand is fixed to the swing friction energy dissipation assembly.

[0033] Furthermore, the two inclined cable assemblies are arranged in a "V" shape or a cross shape.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The purpose of this invention patent is to provide an adjustable through-beam wood structure reinforcement device based on cable and swing friction energy dissipation, and to conduct a scaled quasi-static test to form a reliable method. It solves the problem that the degree and effect of reinforcement cannot be adjusted, realizes a non-destructive and reversible reinforcement mechanism and an efficient and reliable energy dissipation mechanism, saves the manufacturing and installation costs of reinforcement devices, and achieves good economic and social benefits. Specifically, it includes the following:

[0036] (1) Reduce the disturbance of reinforcement to the original structure: On the one hand, this reinforcement measure adopts a dry, low-noise construction method, which can reduce the disturbance of the reinforcement construction process to the lives of the original residents of the structure to a certain extent. On the other hand, this technology uses a clamping method to outsource the reinforcement components, and the construction is not affected by the existing local material damage of the structure, while avoiding damage to the existing structure or further aggravation of damage.

[0037] (2) Simplify the reinforcement component structure and installation process: In order to address the problem that some existing combined reinforcement technology systems have complex structures and difficult construction, which leads to high costs, the present invention uses the most common and easily purchased raw materials, based on the principles of optimized design and simplified processing and installation, effectively controls costs and achieves better technical and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of embedded reinforcement in the background technology of the present invention;

[0039] Figure 2 It is a schematic diagram of the structure of the wrapped reinforcement in the background technology of the present invention;

[0040] Figure 3 It is a schematic diagram of a structure in which support-type reinforcement is added in the background technology of the present invention;

[0041] Figure 4 It is a schematic diagram of the overall structure of the adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to the present invention;

[0042] Figure 5 is an exploded view of the swing friction energy dissipation component of the present invention;

[0043] Figure 6 It is a schematic diagram of the structure of the node reinforcement assembly used on the corner column in the present invention;

[0044] Figure 7 It is a structural schematic diagram of a node reinforcement assembly used on a side center column in the present invention;

[0045] Figure 8 It is a structural schematic diagram of the inclined cable assembly in the present invention;

[0046] Fig. 9It is a schematic diagram of the overall structure of the cross-shaped arrangement of the inclined cables in the present invention;

[0047] Fig.10 This is the topological diagram of the bottom plate and the ear plate before topological optimization analysis;

[0048] Fig.11 This is the main topological diagram after the topological optimization analysis of the base plate and ear plate;

[0049] Fig.12 yes Fig.11 Side view of

[0050] Fig.13 yes Fig.11 Top view of the . DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] Specific implementation method 1: Combination Figures 4 to 9 To illustrate this embodiment, the adjustable through-beam type wooden structure reinforcement device based on cables and swinging friction energy absorption described in this embodiment includes a swinging friction energy absorption component, two node reinforcement components and two inclined cable components. The swinging friction energy absorption component is fixedly connected to the middle part of a doufang, and the node reinforcement components are respectively fixedly connected to the mortise and tenon nodes at both ends of the doufang opposite to the swinging friction energy absorption component. Each node reinforcement component is connected to the swinging friction energy absorption component through an inclined cable component.

[0053] The present invention solves the problem that the degree and effect of reinforcement cannot be adjusted, realizes a lossless and reversible reinforcement mechanism and an efficient and reliable energy consumption mechanism, saves the manufacturing and installation costs of reinforcement devices, and achieves better economic and social benefits.

[0054] The present invention is applicable to the seismic reinforcement process of existing through-beam wooden structure houses that have fallen into disrepair, or have suffered from earthquakes and have obvious rigidity degradation, or have structural defects during construction that have resulted in uneven rigidity distribution and high flexibility. The existing problems that this reinforcement method is committed to solving and the reinforcement target effects specifically include the following three aspects:

[0055] (1) Optimizing and adjusting the overall stiffness distribution of the house: In view of the problem that the stiffness distribution of the existing house structure is uneven, and the stiffness level of the house as a whole is difficult to adjust and balance according to actual needs after local reinforcement, the present invention avoids imposing strong constraints on the mortise and tenon joints, and is committed to forming weak constraints with controllable tightness at the mortise and tenon joints, so that the stiffness improvement level of the mortise and tenon joints after reinforcement can be adjusted as needed, thereby improving the stiffness distribution of the overall structure;

[0056] (2) Improving the ability of houses to consume earthquake energy: In view of the problem that the energy consumption efficiency of the through-beam structure at the nodes is low under the action of medium and small earthquakes, and this causes the safety redundancy of the house to be reduced, the present invention is committed to transferring the concentrated energy consumption location from the mortise and tenon joints to the energy absorber, and transforming the energy consumption excitation source from the relative rotation of the columns and beams to the displacement between the structural layers, thereby reducing the degree of damage to the house under the action of medium and low-level earthquakes, accelerating the functional recovery of the house and reducing the cost of post-earthquake repair;

[0057] (3) Reducing the risk of casualties in major earthquakes and disasters: In order to address the problems of high ductility and low lateral bearing capacity of through-beam wooden structures along the direction of the house span, as well as the problem of easy out-of-plane tipping of masonry infill walls under major earthquakes, the present invention aims to improve the integrity and initial stiffness of the house structure, as well as the lateral bearing capacity in the direction of the weak axis of the house, while preventing the infill walls from collapsing inwards under major earthquakes, thereby reducing the risk of casualties.

[0058] The present invention adjusts the stiffness of the mortise and tenon joints by arranging an L-shaped node reinforcement component at the mortise and tenon joints, installs a swing friction energy dissipation component at the doufang to concentrate on absorbing and dissipating seismic energy, and tensions a cable-stayed cable component between the node reinforcement component and the swing friction energy dissipation component to achieve linkage between the building structure and the reinforcement device.

[0059] The friction force of the swing friction energy dissipation component is adjustable, and the tensioning force of the inclined cable component is adjustable.

[0060] Specific implementation method 2: Combination Figures 4 to 5 This embodiment is described. The swing friction energy dissipation assembly described in this embodiment includes an upper swing 1, a bottom plate 2, a connecting bolt 4 and two ear plates 3. The bottom plate 2 is fixed to the end surface of the bucket beam, and the ear plates 3 are vertically fixed to the front and rear sides of the upper end surface of the bottom plate 2. The upper swing 1 is inserted between the two ear plates 3. The connecting bolt 4 is vertically inserted on the upper swing 1 and the end surfaces of the two ear plates 3, and the upper swing 1 can rotate around the connecting bolt 4. The end of the connecting bolt 4 is threadedly connected with a connecting nut 5. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0061] In order to improve the ability of the house to consume earthquake energy, the present invention installs a swing friction energy dissipation component in the middle of the doufang of the through-beam wooden structure house. The swing friction energy dissipation component includes an upper pendulum 1, a bottom plate 2, a connecting bolt 4 and two ear plates 3, wherein the bottom plate 2 is installed on the doufang, and the two ear plates 3 are fixed on the bottom plate 2. The upper pendulum 1 and the ear plates 3 are installed as a whole through the connecting bolts 4 to form a hinge mechanism. The upper pendulum 1 can realize swinging motion around the axis of the connecting bolt 4, and under the excitation of the swinging motion, the contact part between the upper pendulum 1 and the side end surface of the ear plate 3 has friction, thereby realizing a friction energy dissipation mechanism; the upper pendulum 1 provides tensile support for the other end of the inclined cable assembly. The present invention particularly proposes that by adjusting the tightening torque of the connecting bolt 4, the positive pressure between the friction part of the upper pendulum 1 and the ear plate 3 can be adjusted, thereby changing the friction generated when the swinging motion occurs, and realizing an adjustable multi-level energy dissipation level.

[0062] Specific implementation method three: Combination Figures 4 to 5 To explain this embodiment, the bottom plate 2 in this embodiment is fixedly connected to the bracket by two right-angle U-shaped pipe clamp assemblies 6. The undisclosed technical features in this embodiment are the same as those in the second embodiment.

[0063] The right-angle U-shaped pipe clamp assembly 6 is respectively arranged between the left and right ends of the base plate 2 and the dou beam. The right-angle U-shaped pipe clamp assembly 6 includes a U-shaped clamp, a connecting plate and two locking nuts. The closed end of the U-shaped clamp is sleeved on the end of the base plate 2 and the outside of the dou beam. The connecting plate is sleeved on the two ends of the U-shaped clamp. The locking nuts are respectively threadedly connected to the ends of the U-shaped clamp, and the locking nuts are arranged on the outside of the connecting plate. The locking nuts are locked to achieve the locking fixation between the base plate 2 and the dou beam.

[0064] Specific implementation method four: Combination Figures 4 to 5 To explain this embodiment, both left and right ends of the upper end surface of the bottom plate 2 in this embodiment are fixedly connected to limit stoppers 8, and the right-angle U-shaped pipe clamp assembly 6 is arranged on the inner side of the limit stoppers 8. The undisclosed technical features in this embodiment are the same as those in the third embodiment.

[0065] The limit stopper 8 is used to limit the position of the right-angle U-shaped pipe clamp assembly 6 to prevent the right-angle U-shaped pipe clamp assembly 6 from sliding off the base plate 2 .

[0066] Specific implementation method five: Combination Figures 4 to 5 To explain this embodiment, the left and right ends of the upper swing 1 described in this embodiment are respectively provided with pull rings 7. The undisclosed technical features in this embodiment are the same as those in the second embodiment.

[0067] The pull ring 7 is used for connection with the inclined cable assembly.

[0068] Specific implementation method six: Combination Figures 4 to 5To explain this embodiment, the upper swing 1 and the ear plate 3 described in this embodiment are both semicircular in shape, and the arc surface of the upper swing 1 and the arc surface of the ear plate 3 are arranged in opposite directions. The undisclosed technical features in this embodiment are the same as those in the second embodiment.

[0069] Specific implementation method seven: Combination Figure 4 and Figure 6 to Figure 7 This embodiment is described. The node reinforcement assembly in this embodiment includes a pair of column-wrapping fasteners 9 and a pair of beam-wrapping fasteners 10. The pair of column-wrapping fasteners 9 are relatively arranged on the side wall of the wooden column close to the swing friction energy dissipation assembly in the mortise and tenon joint. The ends of the two column-wrapping fasteners 9 on the same side are fixedly connected. The pair of beam-wrapping fasteners 10 are relatively arranged on the side wall of the beam close to the swing friction energy dissipation assembly in the mortise and tenon joint. The ends of the two beam-wrapping fasteners 10 on the same side are fixedly connected, and the adjacent ends of the beam-wrapping fasteners 10 and the column-wrapping fasteners 9 are fixedly connected. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0070] The two relatively arranged column-wrapping fasteners 9 are wrapped around the outside of the wooden column, and a gap is provided between the two column-wrapping fasteners 9. The ends of the column-wrapping fasteners 9 on the outside of the wooden column are connected and fixed by wooden column fixing bolts. The two relatively arranged beam-wrapping fasteners 10 are wrapped around the outside of the doubei, and a gap is provided between the two beam-wrapping fasteners 10. The ends of the beam-wrapping fasteners 10 on the outside of the doubei are connected and fixed by doubei fixing bolts. The ends of the beam-wrapping fasteners 10 on the inside of the doubei are arranged on the outside of the ends of the column-wrapping fasteners 9 on the inside of the wooden column, and are connected and fixed by fastening bolts.

[0071] A waist-shaped hole 11 is provided on the end of the fastener 10 on the inner side of the bucket beam, and a fastening bolt is inserted into the waist-shaped hole 11.

[0072] The middle part of the column-wrapping fastener 9 is an arc surface, which matches the side wall surface of the wooden column.

[0073] A stepped platform is provided at the outer end of the baofang fastener 10, and the stepped platform is clamped on the outer end surface of the doufang to realize the positioning of the baofang fastener 10.

[0074] The wooden columns include two types: corner columns and side and center columns. When the node reinforcement assembly is applied to the corner column, the baofang fasteners 10 are arranged on the inner side of the corner column. When the node reinforcement assembly is applied to the side and center column, the number of the baofang fasteners 10 is two pairs, and the baofang fasteners 10 are respectively arranged on both sides of the side and center column.

[0075] In order to optimize and adjust the overall rigidity of the house, the present invention installs L-shaped node reinforcement components at the mortise and tenon joints of the corner columns and the side and middle columns facing the direction of the house span. The node reinforcement component consists of a pair of column-wrapping fasteners 9, a pair of beam-wrapping fasteners 10, and bolts that pull the fasteners together. Among them, the ends of the column-wrapping fasteners 9 on the outside of the wooden column are connected and fixed by wooden column fixing bolts, and the ends of the beam-wrapping fasteners 10 on the outside of the doufang are connected and fixed by doufang fixing bolts; on the other hand, the fastening bolts are installed and fastened through the waist-shaped holes 11, and the bearing capacity and rigidity level of the reinforced mortise and tenon joints are adjusted by adjusting the tightening torque of the fastening bolts.

[0076] Specific implementation method eight: Combination Figure 4 and Figure 6 to Figure 7 To explain this embodiment, in this embodiment, the inner end of the column-wrapping fastener 9 and the outer end of the beam-wrapping fastener 10 are both provided with a pull ear 12. The undisclosed technical features in this embodiment are the same as those in the seventh embodiment.

[0077] The pull ear 12 is used for connection with the inclined cable assembly to provide tensile support for the end of the inclined cable assembly.

[0078] Specific implementation method nine: Combination Figure 4 and Figure 8 In this embodiment, the cable assembly includes a turnbuckle 13 and two steel strands 14. The turnbuckle 13 is fixed between the two steel strands 14. The outer end of one steel strand 14 is fixed to the node reinforcement assembly, and the outer end of the other steel strand 14 is fixed to the swing friction energy dissipation assembly. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0079] The ends of the steel strands 14 are provided with buckles 15, the outer end of one steel strand 14 is fixedly connected to the node reinforcement assembly via the buckle 15, the inner end of the steel strand 14 is fixedly connected to one end of the basket bolt 13 via the buckle 15, the outer end of the other steel strand 14 is fixedly connected to the swing friction energy dissipation assembly via the buckle, and the inner end of the steel strand 14 is fixedly connected to the other end of the basket bolt 13 via the buckle.

[0080] In order to ultimately realize the linkage between the building structure and the reinforcement device, and at the same time reduce the risk of casualties in a major earthquake disaster, a cable assembly is tensioned between the node reinforcement assembly and the friction swing energy dissipation assembly. The cable assembly includes a basket bolt 13 and two steel strands 14. The internal force of the cable is adjusted by the basket bolt 13 to achieve tension; the entire set of comprehensive reinforcement devices has a lateral limit effect on the infill wall to which it is attached, so as to prevent the infill wall from collapsing inwards under the action of an earthquake.

[0081] Specific implementation method ten: Combination Figures 4 to 9To explain this embodiment, the two inclined cable assemblies in this embodiment are arranged in a "V" shape or a cross shape. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0082] The structural details of the reinforcement were optimized and analyzed, such as Figures 10 to 13 As shown. Based on the basic structure of the reinforcement device, topological optimization analysis is used to achieve economical material use; at the same time, the "V"-shaped taper design and cross-traction method of the inclined cable assembly are proposed to improve energy consumption efficiency.

[0083] When the inclined cable assembly is arranged in a "V" shape, one end of the inclined cable assembly is connected to the node reinforcement assembly on one side, and the other end of the inclined cable assembly is connected to the end of the swing friction energy absorption assembly adjacent to the node reinforcement assembly on one side; when the inclined cable assembly is arranged in a cross shape, one end of the inclined cable assembly is connected to the node reinforcement assembly on one side, and the other end of the inclined cable assembly is connected to the end of the swing friction energy absorption assembly adjacent to the node reinforcement assembly on the other side.

[0084] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation, characterized in that: It includes a swing friction energy dissipation component, two node reinforcement components and two inclined cable components. The swing friction energy dissipation component is fixedly connected to the middle part of a doufang, and the node reinforcement components are respectively fixedly connected to the mortise and tenon nodes at both ends of the doufang opposite to the swing friction energy dissipation component. Each node reinforcement component is connected to the swing friction energy dissipation component through an inclined cable component. The swing friction energy dissipation component comprises an upper swing (1), a bottom plate (2), a connecting bolt (4) and two ear plates (3), wherein the bottom plate (2) is fixedly connected to the end surface of the bucket beam, the ear plates (3) are vertically fixedly connected to the front and rear sides of the upper end surface of the bottom plate (2), the upper swing (1) is inserted between the two ear plates (3), the connecting bolt (4) is vertically inserted on the end surfaces of the upper swing (1) and the two ear plates (3), and the upper swing (1) can rotate around the connecting bolt (4), and the end of the connecting bolt (4) is threadedly connected with a connecting nut (5); The node reinforcement component comprises a pair of column-wrapping fasteners (9) and a pair of beam-wrapping fasteners (10); the pair of column-wrapping fasteners (9) are relatively arranged on the side wall of the wood column close to the swing friction energy dissipation component in the mortise and tenon joint where they are located, and the ends of the two column-wrapping fasteners (9) on the same side are fixedly connected; the pair of beam-wrapping fasteners (10) are relatively arranged on the side wall of the beam-wrapping fasteners (10) on the side of the swing friction energy dissipation component in the mortise and tenon joint where they are located, and the ends of the two beam-wrapping fasteners (10) on the same side are fixedly connected, and the adjacent ends of the beam-wrapping fasteners (10) and the column-wrapping fasteners (9) are fixedly connected; Pull ears (12) are provided on the inner end of the column-wrapping fastener (9) and the outer end of the beam-wrapping fastener (10).

2. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 1 is characterized in that: The bottom plate (2) is fixedly connected to the bracket via two right-angle U-shaped pipe clamp assemblies (6).

3. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 2 is characterized in that: The left and right ends of the upper end surface of the bottom plate (2) are both fixedly connected to limit blocks (8), and the right-angle U-shaped pipe clamp assembly (6) is arranged on the inner side of the limit block (8).

4. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 1 is characterized in that: Pull rings (7) are respectively provided at the left and right ends of the upper swing (1).

5. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 1 is characterized in that: The upper swing (1) and the ear plate (3) are both semicircular in shape, and the arc surface of the upper swing (1) and the arc surface of the ear plate (3) are arranged in opposite directions.

6. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 1 is characterized in that: The inclined cable assembly comprises a basket bolt (13) and two steel strands (14), the basket bolt (13) is fixedly connected between the two steel strands (14), the outer end of one steel strand (14) is fixedly connected to the node reinforcement assembly, and the outer end of the other steel strand (14) is fixedly connected to the swing friction energy dissipation assembly.

7. The adjustable through-beam type wood structure reinforcement device based on cable and swing friction energy dissipation according to claim 1 is characterized in that: The two inclined cable assemblies are arranged in a "V" shape or a cross shape.

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