A timber structure truss reinforcement system with composite energy dissipation and self-resetting capabilities

Abstract

This invention provides a timber structure truss reinforcement system with composite energy dissipation and self-resetting capabilities, belonging to the technical field of timber structure reinforcement for ancient buildings. It includes a timber upper beam, a timber lower beam, a viscous damping device, a spring device, and a friction energy dissipation device. By adding a timber upper beam and forming a rigid connection with the side beams, the lateral stiffness and overall integrity are significantly enhanced, and the weak link between the brackets and the side beams is eliminated. Through the coordinated operation of several adjustable viscous damping devices, spring devices, and friction energy dissipation devices, the energy dissipation capacity is progressively improved, while retaining the swaying and self-resetting functions of the timber columns.

Description

Technical Field

[0001] This invention belongs to the technical field of ancient building wooden structure reinforcement, and specifically discloses a wooden structure truss reinforcement system with composite energy dissipation and self-resetting. Background Technology

[0002] The pavilion-style wooden structure is a typical form of ancient Chinese architecture, such as... Figure 1 As shown, a tube-in-tube structure system is typically formed by connecting inner and outer groove columns with mortise and tenon joints. However, this structure has obvious weaknesses in earthquake resistance: mortise and tenon joints are used to connect the upper and lower ends of the columns, and the lateral connection between the inner and outer groove columns is weak, mainly relying on the purlins in the upper brackets for limited constraint. The connection between the brackets and the purlins becomes a weak point, resulting in poor overall structural integrity. Under earthquake loads, this structure is prone to overturning along the inner and outer groove directions.

[0003] Existing reinforcement methods mostly employ inter-column bracing, which, while improving lateral stiffness, severely restricts the normal usability of building passageways. The swaying motion of wooden columns during an earthquake can convert some seismic energy into gravitational potential energy, thus achieving self-resetting. The installation of inter-column bracing also inhibits the swaying self-resetting ability of the wooden columns. Therefore, a reinforcement system is needed that can both enhance energy dissipation and effectively preserve the usability of building passageways in the attic-style wooden structure, as well as the swaying self-resetting function of the wooden columns. Summary of the Invention

[0004] To address the issues of insufficient lateral stiffness between the inner and outer grooves in the seismic reinforcement of existing pavilion-style wooden structures, resulting in weak seismic performance, and the limitations imposed by current repair and reinforcement methods on the self-resetting function of wooden columns and the usability of building passageways, this invention provides a truss-type reinforcement system for wooden structures with composite energy dissipation and self-resetting capabilities.

[0005] The aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting capabilities includes a timber upper beam, a timber lower beam, a viscous damping device, a spring device, and a friction energy dissipation device. The timber upper beam connects two adjacent purlins. The timber lower beam is parallel to the timber upper beam and connects two adjacent timber columns. The viscous damping device includes a tie rod I, a sleeve I, a damping fluid storage container, damping fluid, a piston I, and a piston rod I. The damping fluid storage container is fixed inside the sleeve I and filled with damping fluid. The piston I is placed in the damping fluid and slidably contacts the damping fluid storage container. The tie rod I and the piston rod I are located on opposite sides of the sleeve I. The tie rod I is connected to the sleeve I, and a pull ring is provided at the end outside the sleeve I. One end of the piston rod I passes through the sleeve I and the damping fluid storage container and is connected to the piston I, while the other end is provided with a pull ring. The spring device includes a tie rod II, a sleeve II, a spring, a piston II, and a piston rod. II; Piston II is placed inside sleeve II and slidably connected to sleeve II; a spring connection point is provided inside sleeve II; both ends of the spring are connected to the spring connection point and piston II respectively; pull rod II and piston rod II are located on both sides of sleeve II; pull rod II is connected to sleeve II, and a pull ring is provided at the end outside sleeve II; one end of piston rod II passes through sleeve II and is connected to piston II, and a pull ring is provided at the other end; multiple sets of friction energy dissipation devices are slidably sleeved on the lower wooden crossbeam; adjacent viscous damping devices and spring devices are symmetrically arranged, and the pull ring located below is rotatably connected to the same friction energy dissipation device through a double-axis connector; two adjacent viscous damping devices are symmetrically arranged, and the pull ring located above is rotatably connected to the upper wooden crossbeam through a double-axis connector; two adjacent spring devices are symmetrically arranged, and the pull ring located above is rotatably connected to the upper wooden crossbeam through a double-axis connector; the outermost pull ring is rotatably connected to the upper wooden crossbeam through a single-axis connector.

[0006] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, tie rod I is a threaded rod; sleeve I is provided with a through hole I, and a nut I is fixed in the through hole I; tie rod I passes through the through hole I and the nut I; tie rod II is a threaded rod; sleeve II is provided with a through hole II, and a nut II is fixed in the through hole II; tie rod II passes through the through hole II and the nut II.

[0007] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, the damping fluid storage container includes a cylinder and end plates fixed at both ends of the cylinder; the end plates are fixedly connected to sleeve I; and damping fluid replacement ports are provided on both the cylinder and sleeve I.

[0008] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, a spring connecting plate is installed inside sleeve II. The spring connecting plate is parallel to piston II, and the spring connection point is located on the spring connecting plate.

[0009] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting capabilities, the friction energy dissipation device includes a connecting frame I, a connecting frame II, an upper tightening bolt, a friction energy dissipation plate I, and a lower tightening bolt. Connecting frame I is an I-shaped structure, including an upper flange I, a lower flange I, and a web plate I vertically connecting the upper flange I and the lower flange I. Connecting frame II includes an upper flange II, a lower flange II, a web plate II vertically connecting the upper flange II and the lower flange II, and a connecting plate vertically fixed to the upper flange II. The upper flange II, lower flange II, and web plate II form a slot. The slots of the two connecting frames II are arranged opposite each other and are engaged in... On the wooden lower crossbeam; a double-axis connector is installed on the upper wing plate I of the connecting frame I; the web plate I is inserted between the connecting plates of the two connecting frames II and fixed by bolts and nuts; the lower wing plate I is inserted between the wooden lower crossbeam and the upper wing plate II of the two connecting frames II; the upper tightening bolt passes through the upper wing plate II and connects with the lower wing plate I, pressing the lower wing plate I against the upper surface of the wooden lower crossbeam; the friction energy dissipation plate I is inserted between the wooden lower crossbeam and the lower wing plate II of the two connecting frames II; the lower tightening bolt passes through the lower wing plate II and connects with the friction energy dissipation plate I, pressing the friction energy dissipation plate I against the lower surface of the wooden lower crossbeam.

[0010] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, friction energy dissipation plates II are fixed to the upper and lower surfaces of the timber lower crossbeam, and friction-reducing plates are fixed to the sides; the lower wing plate I and the friction energy dissipation plate I respectively press the friction energy dissipation plates II on the upper and lower surfaces of the timber lower crossbeam; the web plates II of the two connecting frames II are in contact with the friction-reducing plates on both sides of the timber lower crossbeam.

[0011] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, the dual-axis connector includes two shaft supports I and two connecting shafts I; the two connecting shafts I are arranged in parallel, and the two ends of each connecting shaft I are connected to the corresponding shaft support I, and two limiting nuts I are sleeved on each connecting shaft I at the position between the two shaft supports I; the shaft supports I are fixed on the upper wooden beam or the friction energy dissipation device; the pull ring of the viscous damping device or the pull ring of the spring device are sleeved on the connecting shaft I and its axial movement is restricted by the limiting nuts I.

[0012] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, the single-axis connector includes two shaft supports II and a connecting shaft II; both ends of the connecting shaft II are connected to the corresponding shaft supports II, and two limiting nuts II are sleeved between the two shaft supports II; the shaft supports II are fixed on the upper wooden beam; the pull ring of the spring device is sleeved between the two limiting nuts II of the connecting shaft II, and the axial movement is restricted by the limiting nuts II.

[0013] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, the two ends of the upper timber beam are connected with upper beam connecting sleeves, which are connected to the purlin by bolts.

[0014] In the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting, the two ends of the timber lower beam are connected with lower beam connecting sleeves, which are connected to clamps by bolts, and the clamps are fixedly mounted on the timber column.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The aforementioned timber truss reinforcement system, featuring composite energy dissipation and self-resetting capabilities, achieves a rigid connection between the added upper wooden beam and the side braces, significantly enhancing lateral stiffness and overall integrity, and eliminating weak points at the connection between the brackets and the braces. Through the coordinated operation of several adjustable viscous damping devices, spring devices, and friction energy dissipation devices, it achieves graded enhancement of energy dissipation capacity while retaining the swaying and self-resetting functions of the timber columns. This invention can significantly improve the load-bearing capacity, stiffness, and energy dissipation performance of pavilion-style timber structures while maintaining the normal use of the passageways in pavilion-style timber buildings. It is suitable for seismic reinforcement projects of timber columns and braces on both sides of passageways in various pavilion-style timber buildings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of a pavilion-style wooden structure;

[0019] Figure 2 An installation diagram of a timber truss reinforcement system with composite energy dissipation and self-resetting capabilities;

[0020] Figure 3 A structural schematic diagram of a timber truss reinforcement system with composite energy dissipation and self-resetting capabilities;

[0021] Figure 4 for Figure 3 A view from another direction;

[0022] Figure 5 for Figure 3 The front view;

[0023] Figure 6 This is a schematic diagram of the internal structure of a viscous damping device;

[0024] Figure 7 This is a schematic diagram of the internal structure of the spring device;

[0025] Figure 8This is a schematic diagram of the structure of a friction energy dissipation device;

[0026] Figure 9 This is a structural schematic diagram of a biaxial connector;

[0027] Figure 10 This is a structural schematic diagram of a single-axis connector;

[0028] Figure 11 This is a schematic diagram showing the installation of the friction energy dissipation plate II and the friction reduction plate on the wooden lower crossbeam.

[0029] Figure 12 This is a first arrangement diagram of the viscous damping device and the spring device;

[0030] Figure 13 This is a second arrangement diagram of the viscous damping device and the spring device.

[0031] In the diagram: 1 - Upper wooden beam, 2 - Lower wooden beam.

[0032] 3-Viscous damping device, 301-Tie rod I, 302-Sleeve I, 303-Damping fluid, 304-Piston I, 305-Piston rod I, 306-Nut I, 307-Cylinder body, 308-End plate, 309-Damping fluid replacement port

[0033] 4-Spring assembly, 401-Pull rod II, 402-Sleeve II, 403-Spring, 404-Piston II, 405-Piston rod II, 406-Nut II, 407-Spring connecting plate

[0034] 5-Friction energy dissipation device, 501-Connecting frame I, 502-Connecting frame II, 503-Upper tightening bolt, 504-Friction energy dissipation plate I, 505-Lower tightening bolt;

[0035] 6-Dual-shaft connector, 601-Shaft support I, 602-Connecting shaft I, 603-Limit nut I,

[0036] 7-Single shaft connector, 701-Shaft support II, 702-Connecting shaft II, 703-Limit nut II,

[0037] 8-Friction energy dissipation plate II, 9-Friction reduction plate, 10-Upper crossbeam connecting sleeve, 11-Lower crossbeam connecting sleeve, 12-Clamp, 13-Plain beam, 14-Wooden column. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figure 2-5 and Figure 12 , 13 As shown, this embodiment provides a timber truss reinforcement system with composite energy dissipation and self-resetting capabilities, including a timber upper beam 1, a timber lower beam 2, a viscous damping device 3, a spring device 4, and a friction energy dissipation device 5; the timber upper beam 1 is used to connect two adjacent purlins 13; the timber lower beam 2 is parallel to the timber upper beam 1 and is used to connect two adjacent timber columns 14; as shown... Figure 6 As shown, the viscous damping device 3 includes a pull rod I 301, a sleeve I 302, a damping fluid storage container, a damping fluid 303, a piston I 304, and a piston rod I 305; the damping fluid storage container is fixed inside the sleeve I 302, and the damping fluid storage container is filled with damping fluid 303; the piston I 304 is placed in the damping fluid 303 and is slidably connected to the damping fluid storage container; the pull rod I 301 and the piston rod I 305 are located on both sides of the sleeve I 302; the pull rod I 301 is connected to the sleeve I 302, and a pull ring is provided at the end outside the sleeve I 302; one end of the piston rod I 305 passes through the sleeve I 302 and the damping fluid storage container and is connected to the piston I 304, and a pull ring is provided at the other end; Figure 7 As shown, the spring device 4 includes a pull rod II 401, a sleeve II 402, a spring 403, a piston II 404, and a piston rod II 405; the piston II 404 is placed inside the sleeve II 402 and is slidably connected to the sleeve II 402; a spring connection point is provided inside the sleeve II 402; both ends of the spring 403 are connected to the spring connection point and the piston II 404 respectively; the pull rod II 401 and the piston rod II 405 are located on both sides of the sleeve II 402; the pull rod II 401 is connected to the sleeve II 402, and a pull ring is provided at the end outside the sleeve II 402; one end of the piston rod II 405 passes through the sleeve II 402 and is connected to the piston II 404, and a pull ring is provided at the other end; multiple sets of friction energy dissipation devices 5 are slidably sleeved on the wooden lower crossbeam 2; as Figure 5 , 12 As shown in Figure 13, adjacent viscous damping devices 3 and spring devices 4 are symmetrically arranged, and the lower pull ring is rotatably connected to the same friction energy dissipation device 5 through a double-axis connector 6; two adjacent viscous damping devices 3 are symmetrically arranged, and the upper pull ring is rotatably connected to the wooden upper crossbeam 1 through a double-axis connector 6; two adjacent spring devices 4 are symmetrically arranged, and the upper pull ring is rotatably connected to the wooden upper crossbeam 1 through a double-axis connector 6; the outermost pull ring is rotatably connected to the wooden upper crossbeam 1 through a single-axis connector 7.

[0040] Among them, "outermost pull ring" refers to the pull ring of the outermost device, whether it is the viscous damping device 3 or the spring device 4, which is not connected to the adjacent device.

[0041] The design principles for the viscous damping device 3 and the spring device 4 are:

[0042] (1) Both devices should be symmetrically arranged along the vertical central axis of the pavilion-style wooden structure, such as Figure 5 , 12 As shown in Figure 13. During an earthquake, the wooden structure of the attic will sway from side to side. To ensure that the reinforcement system acts in a consistent manner when swaying to the left and right, the combination of the viscous damping device 3 and the spring device 4 must be arranged symmetrically.

[0043] (2) The two devices should be evenly arranged on the diagonal members of the truss, because the function of the spring device 4 is to provide restoring force, and the function of the viscous damping device 3 is to provide resistance and energy dissipation. The characteristic of the truss structure is that the diagonal members are alternately subjected to tension and compression. Therefore, the same device needs to be arranged on the tension members and also on the compression members to ensure that when the tension members are in action, the spring 403 exerts tension (i.e., the spring 403 acts as a tension spring), and when the compression members are in action, the spring 403 acts as a compression spring (i.e., the spring 403 acts as a compression spring). The same applies to the viscous damping device 3.

[0044] (3) For the two devices to synchronize the sliding displacement of all friction energy dissipation devices 5, the two inclined rods connected to each friction energy dissipation device 5 must simultaneously include a viscous damping device 3 and a spring device 4. If the two inclined rods are of the same type, the sliding displacement of the friction energy dissipation devices 5 will be inconsistent, which will lead to serious deformation of the overall system.

[0045] A wooden upper crossbeam 1 is added between two adjacent purlins 13 to form a rigid connection, effectively restraining the relative rotation of the purlins 13. This allows the swaying part of the pavilion-style wooden structure during an earthquake to shift from the top of the purlins 13 to the top of the wooden columns 14, thereby eliminating the weak link at the connection between the brackets and the purlins 13. The two adjacent wooden columns 14 are further reinforced by the addition of a wooden lower crossbeam 2, significantly improving the lateral stiffness, load-bearing capacity, and energy dissipation capacity of the pavilion-style wooden structure.

[0046] The damping fluid 303 has a high viscosity, which allows it to dissipate input energy as heat during compression. Therefore, the core function of the viscous damping device 3 is to continuously dissipate energy by generating resistance through the fluid viscosity effect. In other words, the role of the viscous damping device 3 is to convert mechanical energy into heat energy for effective dissipation. The spring device 4 mainly provides the elastic restoring force that enables the attic-style wooden structure to self-reset.

[0047] like Figure 5As shown, when the entire wooden structure swings to the left, the upper wooden beam 1 and the lower wooden beam 2 move to the left with different amplitudes. Because the upper wooden beam 1 is higher, it moves to the left more. At this time, the spring 403 of the left-side spring device 4 is stretched, applying a continuous pulling force, driving the left-side friction energy dissipation device 5 to move to the left. This causes the piston I 304 inside the left-side viscous damping device 3 to move in the damping fluid 303 and compress the damping fluid 303, converting mechanical energy into heat energy for effective dissipation. Simultaneously, the spring 403 of the right-side spring device 4 is compressed, driving the right-side friction energy dissipation device 5 to move to the left, generating friction energy dissipation. This action pushes the piston I 304 inside the right-side viscous damping device 3 to move in the damping fluid 303 and compress the damping fluid 303, dissipating mechanical energy. As the overall structure begins to reset, the spring 403 of the left-side spring device 4 gradually compresses. The resulting pressure causes the left-side friction energy dissipation device 5 to move to the right, continuously generating frictional energy dissipation during this process. Simultaneously, the piston I 304 inside the left-side viscous damping device 3 moves in the opposite direction, squeezing the damping fluid 303 and continuing to dissipate residual energy by converting mechanical energy into heat energy. At the same time, the spring 403 of the right-side spring device 4 stretches, driving the right-side friction energy dissipation device 5 to move to the right. This action pushes the piston I 304 inside the right-side viscous damping device 3 to move in the opposite direction within the damping fluid 303, continuing to squeeze the damping fluid 303. The entire reinforcement system dissipates energy through a combination of friction and viscous damping mechanisms.

[0048] like Figure 6-7 As shown, in the above-mentioned timber truss reinforcement system with composite energy dissipation and self-resetting, tie rod I 301 is a threaded rod; sleeve I 302 is provided with through hole I, and nut I 306 is fixed on through hole I; tie rod I 301 passes through through hole I and nut I 306; tie rod II 401 is a threaded rod; sleeve II 402 is provided with through hole II, and nut II 406 is fixed on through hole II; tie rod II 401 passes through through hole II and nut II 406.

[0049] The lengths of pull rod I 301 and pull rod II 401 can be adjusted by threading to accommodate different distances between the upper wooden beam 1 and the lower wooden beam 2.

[0050] like Figure 6 As shown, in the above-mentioned composite energy dissipation and self-resetting timber truss reinforcement system, the damping fluid storage container includes a cylinder 307 and end plates 308 fixed at both ends of the cylinder 307; the end plates 308 are fixedly connected to the sleeve I 302; both the cylinder 307 and the sleeve I 302 are provided with damping fluid replacement ports 309.

[0051] like Figure 7As shown, in the above-mentioned timber truss reinforcement system with composite energy dissipation and self-resetting, a spring connecting plate 407 is provided inside the sleeve II 402. The spring connecting plate 407 is parallel to the piston II 404, and the spring connection point is located on the spring connecting plate 407.

[0052] like Figure 3 , 8 As shown, in the aforementioned composite energy dissipation and self-resetting timber truss reinforcement system, the friction energy dissipation device 5 includes a connecting frame I 501, a connecting frame II 502, an upper tightening bolt 503, a friction energy dissipation plate I 504, and a lower tightening bolt 505. The connecting frame I 501 is made of I-beams and includes an upper flange I, a lower flange I, and a web plate I that vertically connects the upper flange I and the lower flange I. The connecting frame II 502 is welded from C-shaped channel steel and a connecting plate and includes an upper flange II, a lower flange II, a web plate II that vertically connects the upper flange II and the lower flange II, and a connecting plate that is vertically fixed to the upper flange II. The upper flange II, the lower flange II, and the web plate II form a groove. The grooves of the two connecting frames II 502 are opposite to each other. The frame is set up and secured to the wooden lower crossbeam 2; a double-axis connector 6 is installed on the upper wing plate I of the connecting frame I 501; the web plate I is inserted between the connecting plates of the two connecting frames II 502 and fixed by bolts and nuts; the lower wing plate I is inserted between the wooden lower crossbeam 2 and the upper wing plate II of the two connecting frames II 502; the upper tightening bolt 503 passes through the upper wing plate II and connects to the lower wing plate I, pressing the lower wing plate I onto the upper surface of the wooden lower crossbeam 2; the friction energy dissipation plate I 504 is inserted between the wooden lower crossbeam 2 and the lower wing plate II of the two connecting frames II 502; the lower tightening bolt 505 passes through the lower wing plate II and connects to the friction energy dissipation plate I 504, pressing the friction energy dissipation plate I 504 onto the lower surface of the wooden lower crossbeam 2.

[0053] like Figure 11 As shown, in the aforementioned timber truss reinforcement system with composite energy dissipation and self-resetting capabilities, friction energy dissipation plates II8 are fixed to both the upper and lower surfaces of the timber lower crossbeam 2, and friction-reducing plates 9 are fixed to its sides. The lower flange I and friction energy dissipation plates I 504 respectively press against the friction energy dissipation plates II8 on the upper and lower surfaces of the timber lower crossbeam 2. The web plates II of the two connecting frames II 502 respectively contact the friction-reducing plates 9 on both sides of the timber lower crossbeam 2 to reduce friction between them and avoid interfering with the normal operation of the friction energy dissipation plates. In this embodiment, the friction-reducing plates 9 are made of polytetrafluoroethylene (PTFE).

[0054] Friction energy dissipation devices 5, friction energy dissipation plates II 8, and friction-reducing plates 9 can be flexibly installed at different positions on the wooden lower crossbeam 2 according to actual needs, thereby achieving overall adjustment of energy dissipation capacity. By adjusting the friction coefficient of friction energy dissipation plates I 504 and II 8 or replacing different types of damping fluid 303, the energy dissipation performance of the system can also be precisely controlled.

[0055] like Figure 9As shown, in the above-mentioned timber truss reinforcement system with composite energy dissipation and self-resetting, the dual-axis connector 6 includes two shaft supports I601 and two connecting shafts I602. In this embodiment, the shaft supports I601 are double-hole spherical iron supports. The two connecting shafts I602 are arranged in parallel, and the two ends of each connecting shaft I602 are connected to the corresponding shaft support I601. Two limiting nuts I603 are sleeved on each connecting shaft I602 at the position between the two shaft supports I601. The shaft supports I601 are fixed to the wooden upper crossbeam 1 or the friction energy dissipation device 5 by bolts. The pull ring of the viscous damping device 3 or the pull ring of the spring device 4 is sleeved on the connecting shaft I602 and its axial movement is restricted by the limiting nuts I603.

[0056] like Figure 10 As shown, in the above-mentioned composite energy dissipation and self-resetting wooden truss reinforcement system, the single-axis connector 7 includes two shaft supports II 701 and a connecting shaft II 702. In this embodiment, the shaft support II 701 adopts a single-hole outer spherical iron support. The two ends of the connecting shaft II 702 are respectively connected to the corresponding shaft support II 701, and two limiting nuts II 703 are sleeved between the two shaft supports II 701. The shaft support II 701 is fixed to the wooden upper crossbeam 1 by bolts. The pull ring of the spring device 4 is sleeved between the two limiting nuts II 703 of the connecting shaft II 702, and the axial movement is restricted by the limiting nuts II 703.

[0057] like Figure 2-5 As shown, in the above-mentioned composite energy dissipation and self-resetting wooden truss reinforcement system, steel upper beam connecting sleeves 10 are inserted at both ends of the wooden upper beam 1, and the upper beam connecting sleeves 10 are connected to the purlin 13 by bolts.

[0058] like Figure 2-5 As shown, in the above-mentioned composite energy dissipation and self-resetting wooden truss reinforcement system, steel lower beam connecting sleeves 11 are inserted at both ends of the wooden lower beam 2. The lower beam connecting sleeves 11 are connected to the clamps 12 by bolts, and the clamps 12 are fixedly sleeved on the wooden column 14.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A timber structure truss reinforcement system with composite energy dissipation and self-resetting capabilities, characterized in that, It includes a wooden upper crossbeam (1), a wooden lower crossbeam (2), a viscous damping device (3), a spring device (4), and a friction energy dissipation device (5); The wooden upper crossbeam (1) is used to connect two adjacent purlins (13); The lower wooden beam (2) is parallel to the upper wooden beam (1) and is used to connect two adjacent wooden posts (14). The viscous damping device (3) includes a pull rod I (301), a sleeve I (302), a damping fluid storage container, a damping fluid (303), a piston I (304), and a piston rod I (305). The damping fluid storage container is fixed inside the sleeve I (302), and the damping fluid storage container is filled with damping fluid (303). The piston I (304) is placed in the damping fluid (303) and is in sliding contact with the damping fluid storage container; The pull rod I (301) and piston rod I (305) are located on both sides of the sleeve I (302); The pull rod I (301) is connected to the sleeve I (302), and a pull ring is provided at the end located outside the sleeve I (302); One end of the piston rod I (305) passes through the sleeve I (302) and the damping fluid storage container and is connected to the piston I (304), and the other end is provided with a pull ring; The spring device (4) includes a pull rod II (401), a sleeve II (402), a spring (403), a piston II (404), and a piston rod II (405). The piston II (404) is placed inside the sleeve II (402) and is in sliding contact with the sleeve II (402); A spring connection point is provided inside the sleeve II (402); The two ends of the spring (403) are connected to the spring connection point and the piston II (404) respectively; The pull rod II (401) and piston rod II (405) are located on both sides of the sleeve II (402); The pull rod II (401) is connected to the sleeve II (402), and a pull ring is provided at the end located outside the sleeve II (402); One end of the piston rod II (405) passes through the sleeve II (402) and is connected to the piston II (404), and the other end is provided with a pull ring; Multiple sets of friction energy dissipation devices (5) are slidably mounted on the wooden lower crossbeam (2); Adjacent viscous damping devices (3) and spring devices (4) are symmetrically arranged, and the pull ring located below is rotatably connected to the same friction energy dissipation device (5) through a double-axis connector (6); Two adjacent viscous damping devices (3) are symmetrically arranged, and the pull ring located above is rotatably connected to the wooden upper crossbeam (1) through a double shaft connector (6); Two adjacent spring devices (4) are symmetrically arranged, and the pull ring located above is rotatably connected to the wooden upper crossbeam (1) through a double shaft connector (6); The outermost pull ring is rotatably connected to the wooden upper crossbeam (1) via a single-axis connector (7).

2. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The tie rod I (301) is a threaded rod; The sleeve I (302) is provided with a through hole I, and a nut I (306) is fixed on the through hole I; The pull rod I (301) passes through the through hole I and the nut I (306); The tie rod II (401) is a threaded rod; The sleeve II (402) is provided with a through hole II, and a nut II (406) is fixed on the through hole II. The tie rod II (401) passes through the through hole II and the nut II (406).

3. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 2, characterized in that, The damping fluid storage container includes a cylinder (307) and end plates (308) fixed at both ends of the cylinder (307). The end plate (308) is fixedly connected to the sleeve I (302); Both the cylinder body (307) and the sleeve I (302) are provided with damping fluid replacement ports (309).

4. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 2, characterized in that, The sleeve II (402) is provided with a spring connecting plate (407), which is parallel to the piston II (404), and the spring connection point is located on the spring connecting plate (407).

5. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The friction energy dissipation device (5) includes a connecting frame I (501), a connecting frame II (502), an upper tightening bolt (503), a friction energy dissipation plate I (504), and a lower tightening bolt (505); The connecting frame I (501) is an I-shaped structure, including an upper wing plate I, a lower wing plate I, and a web plate I that vertically connects the upper wing plate I and the lower wing plate I; The connecting frame II (502) includes an upper wing plate II, a lower wing plate II, a web plate II that vertically connects the upper wing plate II and the lower wing plate II, and a connecting plate that is vertically fixed on the upper wing plate II. The upper wing plate II, the lower wing plate II, and the web plate II form a groove. The slots of the two connecting brackets II (502) are set opposite each other and are locked onto the wooden lower crossbeam (2); The upper wing plate I of the connecting frame I (501) is equipped with a double shaft connector (6), the web plate I is inserted between the connecting plates of the two connecting frames II (502) and fixed by bolts and nuts, and the lower wing plate I is inserted between the wooden lower crossbeam (2) and the upper wing plate II of the two connecting frames II (502); The upper tightening bolt (503) passes through the upper flange II and connects to the lower flange I, pressing the lower flange I onto the upper surface of the wooden lower crossbeam (2); The friction energy dissipation plate I (504) is inserted between the wooden lower crossbeam (2) and the lower wing plate II of the two connecting frames II (502); The lower tightening bolt (505) passes through the lower flange II and connects to the friction energy dissipation plate I (504), pressing the friction energy dissipation plate I (504) onto the lower surface of the wooden lower crossbeam (2).

6. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 5, characterized in that, The upper and lower surfaces of the wooden lower crossbeam (2) are both fixed with friction energy dissipation plates II (8), and the sides are fixed with friction reduction plates (9). The lower wing plate I and the friction energy dissipation plate I (504) respectively press the friction energy dissipation plate II (8) on the upper and lower surfaces of the wooden lower crossbeam (2); The web plate II of the two connecting frames II (502) is in contact with the friction-reducing plates (9) on both sides of the wooden lower crossbeam (2).

7. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The dual-shaft connector (6) includes two shaft supports I (601) and two connecting shafts I (602); Two connecting shafts I (602) are arranged in parallel. The two ends of each connecting shaft I (602) are connected to the corresponding shaft support I (601) respectively. Two limiting nuts I (603) are sleeved on each connecting shaft I (602) between the two shaft supports I (601). The shaft support I (601) is fixed on the wooden upper crossbeam (1) or on the friction energy dissipation device (5); The pull ring of the viscous damping device (3) or the pull ring of the spring device (4) is sleeved on the connecting shaft I (602) and its axial movement is restricted by the limiting nut I (603).

8. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The single-axis connector (7) includes two shaft supports II (701) and a connecting shaft II (702); The two ends of the connecting shaft II (702) are respectively connected to the corresponding shaft support II (701), and two limiting nuts II (703) are sleeved between the two shaft supports II (701). The shaft support II (701) is fixed on the wooden upper crossbeam (1); The pull ring of the spring device (4) is sleeved between the two limiting nuts II (703) of the connecting shaft II (702), and the axial movement is restricted by the limiting nuts II (703).

9. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The two ends of the wooden upper beam (1) are connected with upper beam connecting sleeves (10), and the upper beam connecting sleeves (10) are connected to the purlin (13) by bolts.

10. The timber structure truss reinforcement system with composite energy dissipation and self-resetting as described in claim 1, characterized in that, The two ends of the wooden lower crossbeam (2) are connected with lower crossbeam connecting sleeves (11), and the lower crossbeam connecting sleeves (11) are connected to the clamps (12) by bolts. The clamps (12) are fixedly sleeved on the wooden column (14).

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