A friction-inertia composite wall reinforcement and energy dissipation device and wall

Abstract

The present invention discloses a friction-inertia composite wall reinforcement and energy dissipation device and a wall, comprising a first energy dissipation device and a second energy dissipation device, wherein the first energy dissipation device comprises a small deformation amplification device, a friction damper, a built-in energy dissipation device, and a retractable spring sleeve, and the second energy dissipation device comprises a retractable block and a disc spring; a cable is connected to the first energy dissipation device, realizing the linkage of the cable, the small deformation amplification device, the friction damper and the built-in energy dissipation device, converting the tiny deformation of the wall into mechanical movement in the box structure, and realizing the purpose of multi-stage energy dissipation. A retractable spring sleeve is arranged outside the friction damper, so that when the plate groups in the friction damper are continuously squeezed and friction sliding occurs, causing the positions of the plates to change, the device has the ability to self-reset. The rod is connected to the second energy dissipation device, so that when the wall is vertically deformed, the rod outside the wall is driven to deform, thereby compressing the block and the disc spring to realize energy conversion.

Description

Technical Field

[0001] The present invention relates to the technical field of reinforcement and vibration reduction of civil engineering, and in particular to a friction-inertia composite wall reinforcement and energy dissipation device and a wall, which are mainly used for reinforcing walls and controlling horizontal and vertical deformation of walls. Background Art

[0002] In building structures, walls, as the main load-bearing components, are subjected to a variety of external forces. The forces are complex and they are prone to cracks and deformation, which affects the stability, reliability and durability of the structure.

[0003] Based on the current construction foundation, in order to meet the seismic requirements of the wall, it is usually necessary to reinforce the load-bearing wall. The commonly used reinforcement methods are to implant energy dissipation and vibration reduction devices in the wall, reinforced steel mesh cement mortar reinforcement method, external fiber polymer reinforcement method, etc. For the reinforced steel mesh cement mortar reinforcement method, this method has a simple construction process and can greatly improve the bearing capacity of the wall, but the integrity of the wall is poor, and the ability to resist deformation is weak, which cannot meet the energy dissipation and vibration reduction capacity of the wall; for the external fiber polymer reinforcement method, the integrity of the wall can be improved and its deformation capacity can be enhanced, but the connection between the fiber polymer FRP and the wall is weak, and it is easy to peel off and damage, thereby affecting the reinforcement effect of the wall. The above two methods require a lot of on-site wet operations, a long construction period, and are not convenient for construction.

[0004] Implanting vibration dampers inside the wall only improves the wall's ability to resist deformation, but cannot achieve the purpose of improving the wall's stability and controlling its deformation ability.

[0005] In summary, most of the existing technical solutions currently adopt a single vibration reduction or reinforcement technology, which cannot achieve both improving the integrity and bearing capacity of the wall and reducing or controlling the vibration response of the wall. Summary of the invention

[0006] Based on the above research status, the purpose of the present invention is to provide a friction-inertia composite wall reinforcement and energy dissipation device and wall, which aims to amplify the slight deformation of the wall through cables, sliding assemblies, slide plates, ball screw pairs, rigid rods, tracks and mass blocks, and reduce the vibration response of the wall in all directions under other external forces such as vertical loads, wind loads or earthquakes through friction dampers and built-in energy absorbers, so as to achieve the purpose of energy dissipation and vibration reduction; at the same time, through external rods and energy conversion systems, the compression deformation of the wall in the vertical direction is reduced.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] In the first aspect, the present invention discloses a friction-inertia composite wall reinforcement and energy dissipation device, including a first energy dissipation device, which includes a first box, in which a small deformation amplification device and a friction damper are arranged, the small deformation amplification device is arranged at the upper part of the first box, and a friction damper with the same structure is connected to each of the two ends of the small deformation amplification device, each friction damper is composed of a passive plate group, a moving plate group, and a built-in energy dissipation device; the passive plate group includes a passive plate I, a passive plate II, a passive plate III, and a passive plate IV, and the passive plate I is symmetrical with the passive plate III; the passive plate II and the passive plate IV are symmetrical with each other. The moving plate IV is symmetrical up and down, and the passive plate I is slidably connected to the passive plate III through an arc-shaped passive plate V, and the passive plate II is slidably connected to the passive plate IV through another arc-shaped passive plate VI; the passive plate I and the passive plate II are slidably connected to the moving plate I, and the passive plate III and the passive plate IV are slidably connected through the moving plate II; an energy absorber is built in the space surrounded by the passive plate group, and the built-in energy absorber is connected to the small deformation amplification device; the passive plate VI is connected to the side wall of the box through a telescopic sleeve, and the passive plate V is also connected to the partition located in the box through the telescopic sleeve; the passive plate III and the passive plate IV are connected to the bottom of the box through the telescopic sleeve.

[0009] As a further technical solution, the passive plates I, II, III and IV are all provided with grooves, so that the moving plates I and II can move up and down along the grooves of the passive plates.

[0010] As a further technical solution, the two end faces of the passive plate V are in sliding and frictional contact with the arc-shaped inclined surface of the passive plate I and the arc-shaped inclined surface of the passive plate III respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other; the two inclined surfaces of the passive plate VI are in sliding and frictional contact with the arc-shaped inclined surface of the passive plate II and the arc-shaped inclined surface of the passive plate IV respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other.

[0011] As a further technical solution, the built-in energy absorber consists of a connecting rod, an inner tube and a support seat; the support seat is fixed on the top of the passive plate III and the passive plate IV, the inner tube is fixed on the support seat, and the top of the inner tube is connected to the small deformation amplification device through a connecting rod.

[0012] As a further technical solution, the inner cylinder includes a piston, a spherical metal cylinder, a rubber tube, a square metal cylinder, a damping fluid, and a damping net; the piston is fixed to the lower end of the connecting rod and moves up and down in the square metal cylinder; the square metal cylinder contains damping fluid, and four rubber tubes extend out of the cylinder and are respectively connected to the spherical metal cylinders at the four corners of the inner cylinder; the four spherical metal cylinders are connected by four arc-shaped rubber tubes; and a damping net is placed in each rubber tube at a certain interval.

[0013] As a further technical solution, the small deformation amplification device includes a cable connecting ring, a slide plate, a sliding assembly, a ball screw pair, a rigid rod, a track and a mass block; the lower end of the cable connecting ring is connected to the sliding assembly, and the two together make a linear motion in the slide plate; a ball screw pair connected to it is provided below the sliding assembly; a rigid rod is connected to each end of the ball screw pair, and the two rigid rods and the slide plate are installed in a fixed seat on the inner wall of the box body, and the rigid rod can rotate around the roller in the fixed seat without changing the position of the slide plate; the track is wrapped around the rigid rod, and the mass block is connected to the track.

[0014] As a further technical solution, it also includes a second energy dissipation device, which includes a second box body, a telescopic block is installed in the second box body, and a plurality of disc springs are arranged at the bottom of the telescopic block.

[0015] In the second aspect, the present invention proposes a wall, in which a first energy dissipation device is arranged. Two first energy dissipation devices are arranged and located at both ends of the wall. The two first energy dissipation devices are respectively connected to an anchor located at the top of the wall through two cables.

[0016] In a third aspect, the present invention provides a wall, in which a first energy absorbing device and a second energy absorbing device are arranged. Two first energy absorbing devices are arranged and located at both ends of the wall. The two first energy absorbing devices are respectively connected to an anchor located at the top of the wall through two cables. The second energy absorbing device is located in the middle of the wall. One side of the second energy absorbing device is connected to the top of the wall through two V-shaped rods, and the other side of the second energy absorbing device is connected to the top of the wall through another two V-shaped rods.

[0017] The working principle of the present invention is as follows:

[0018] The direction of the ball screw axis is defined as the X direction; the direction perpendicular to the ball screw axis is defined as the Y direction. When the wall is subjected to multiple forces in the horizontal and vertical directions, deformation is likely to occur. The cables and rods outside the wall can not only directly improve the integrity of the wall, but also work in conjunction with the small deformation amplification device in the first energy dissipation device to achieve the purpose of amplifying the micro-deformation of the wall, thereby improving the energy dissipation and vibration reduction capacity of the wall. When the wall vibrates in the X direction of the axis, the deformation of the wall will cause the cable to pull the sliding assembly and the groove in the first energy dissipation device to move in the X direction. Since the nut is fixedly connected to the groove, the nut moves axially along the screw in the X direction, and the ball screw converts the linear motion of the nut into the rotational motion of the screw and the rigid rod. The rigid rod drives the track to rotate, and then drives the mass block connected to the track to move in the Y direction. At this time, the connecting rod fixed at the lower end of the mass block pushes the moving plate I in the friction damper to make axial movement along the Y direction. On the one hand, due to the relative movement of the moving plate I, the passive plate group and the moving plate II, which are symmetrically arranged up and down and left and right, squeeze each other, produce friction sliding, and achieve the purpose of primary energy consumption; on the other hand, the piston at the bottom of the connecting rod will continuously squeeze the damping liquid in the square metal cylinder in the inner tube, and use the inertial effect of the liquid flowing from the large-section container to the small-section container to increase the flow rate of the damping liquid in the rubber conduit. In addition, the existence of the damping net achieves the purpose of amplifying the flow damping force of the liquid and secondary energy consumption, further improving the vibration reduction capacity of the device; the retractable spring sleeve arranged outside the friction damper can realize the self-reset ability after the plate group moves, ensuring normal use next time. When the wall vibrates in the Y direction, the rod outside the wall can drive the second energy dissipation device to work, continuously compressing the telescopic block and disc spring in the device, and reducing the vertical deformation of the wall.

[0019] The beneficial effects of the present invention are:

[0020] (1) The present invention transmits the horizontal vibration of the wall into the vibration reduction device in the wall through the cable, converts it into the rotation of the rigid rod by the ball screw, and then converts it into the linear motion of the mass block by the transmission of the crawler, thereby improving the linkage efficiency of the transmission machinery and achieving the purpose of converting the translation into rotation and amplifying the deformation; at the same time, the vertical vibration of the wall is transmitted to the vibration reduction device in the wall through the rod, and the disc spring and the telescopic block are used to realize the energy conversion, thereby improving the coordinated vibration reduction capacity of the two types of devices;

[0021] (2) The present invention utilizes the extrusion between the passive plate group and the moving plate group to generate friction sliding, so that each frictionally contacting plate of the plate group converts a part of the energy into heat energy, thereby achieving the purpose of primary energy consumption;

[0022] (3) The present invention utilizes the inertia principle, i.e., the inertia effect when the liquid flows from a large-section container to a small-section container, so that the damping liquid flows rapidly in the flow pipe and the spherical metal cylinder. At the same time, due to the presence of the damping net in the flow pipe, the purpose of amplifying the damping force of the liquid flow is achieved; a communicating vessel is formed between the metal cylinder and the rubber conduit to avoid the phenomenon of empty stroke when the liquid flows;

[0023] (4) The present invention connects the small deformation amplification device, the friction damper and the built-in energy absorber together by providing a connecting rod that runs through the middle. When the deformation is amplified, the plates in friction contact in the plate group are continuously squeezed, which realizes friction energy dissipation and transmits the motion to the built-in energy absorber, so that the piston at the bottom of the connecting rod continuously squeezes the damping fluid in the square metal cylinder to flow into the rubber conduit and the spherical metal cylinder, thereby realizing the purpose of secondary energy dissipation and further improving the energy dissipation and vibration reduction effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0025] Figure 1 It is a front view of a friction-inertia composite wall reinforcement and energy dissipation device;

[0026] Figure 2 This is the AA section view of a friction-inertia composite wall reinforcement and energy dissipation device;

[0027] Figure 3 It is a front view of a first energy dissipation device in a friction-inertia composite wall reinforcement and energy dissipation device;

[0028] Figure 4 It is a BB cross-sectional view of the first energy dissipation device in a friction-inertia composite wall reinforcement and energy dissipation device;

[0029] Figure 5 It is a front view of a friction damper of the first energy dissipation device in a friction-inertia composite wall reinforcement and energy dissipation device;

[0030] Figure 6 It is a front view of the second energy dissipation device in a friction-inertia composite wall reinforcement and energy dissipation device;

[0031] In the figure: 1 wall, 2 anchor, 3 cable, 4 rod, 5 first energy dissipation device, 6 second energy dissipation device, 7 cable connecting ring, 8 slide plate, 9 sliding assembly, 10 ball, 11 nut, 12 screw, 13 rigid rod, 14 fixed seat, 15 crawler, 16 mass block, 17 connecting rod, 18 moving plate I, 19 moving plate II, 20 passive plate I, 21 passive plate II, 22 passive plate V, 23 passive plate VI, 24 passive plate III, 25 passive plate IV, 26 inner cylinder, 27 piston, 28 spherical metal cylinder, 29 square metal cylinder, 30 rubber conduit, 31 damping net, 32 damping fluid, 33 support seat, 34 telescopic spring sleeve, 35 spring, 36 base, 37 partition, 38 telescopic block, 39 disc spring. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] A typical implementation of the present invention is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 , Figure 6 As shown, the friction-inertia composite wall reinforcement and energy dissipation device disclosed in this embodiment includes a first energy dissipation device 5 and a second energy dissipation device box 6, wherein the first energy dissipation device 5 is composed of a small deformation amplification device, a friction damper, a built-in energy dissipator, and a telescopic spring sleeve 34; the second energy dissipation device 6 is composed of a telescopic block 38 and a disc spring 39; the first energy dissipation device 5 is respectively arranged on the left and right sides of the bottom of the wall 1, and the second energy dissipation device 6 is arranged in the middle of the bottom of the wall 1; the tops of the two second energy dissipation devices 6 are connected to the anchor 2 at the front end of the top of the wall through two cables 3 extending to the front side of the wall, and at the same time, the tops of the two second energy dissipation devices 6 are also connected to the anchor 2 at the rear end of the top of the wall through two cables 3 extending to the rear side of the wall, and the front view of the cable distribution is shown in FIG. Figure 1 As shown, the side view is Figure 2 As shown, the upper ends of the two cables 3 on the outer wall are converged at one point through the anchor 2 on the outer side of the upper part of the wall 1, and the lower ends are connected to a first energy dissipation device 5; the upper ends of the two cables 3 on the inner side of the wall are converged at one point through the anchor 2 on the inner side of the upper part of the wall 1, and the lower ends are connected to a first energy dissipation device 5, that is, according to Figure 1 In the orientation shown, the first energy dissipation device 5 located on the left side of the wall is connected to the front and rear cables 3 on the left side, and the side view of the connection is shown in FIG. Figure 2 As shown, the first energy dissipation device 5 located on the right side of the wall is connected to the front and rear cables 3 on the right side. The side view of the connection can also be referred to Figure 2 As shown;

[0037] Similarly, the two rods 4 of the inner wall are spliced ​​into an inverted triangle shape (V shape) as shown in FIG. Figure 1 As shown, it is connected to the second energy dissipation device 6 at the lower part of the wall 1; the two rods 4 of the outer wall are also spliced ​​into an inverted triangle shape (V-shape), which are connected to the second energy dissipation device 6 at the lower part of the wall 1; that is, the four rods 4 are all connected to the same second energy dissipation device 6, and the other ends of the four rods 4 are fixed to the wall through connecting pieces.

[0038] The above-mentioned cable is connected to the first energy dissipation device, realizing the linkage of the cable, the small deformation amplification device, the friction damper and the built-in energy dissipation device, converting the tiny deformation of the wall into mechanical movement in the box structure, and realizing the purpose of multi-stage energy dissipation. A retractable spring sleeve is arranged outside the friction damper, which can realize the ability of self-reset when the plate groups in the friction damper are continuously squeezed and friction sliding occurs, causing the positions of each plate to change. The rod is connected to the second energy dissipation device, realizing that when the wall is vertically deformed, the rod outside the wall is driven to deform, thereby compressing the block and the disc spring to realize energy conversion.

[0039] Further, the small deformation amplification device in the first energy dissipation device 5 is specifically described in Figure 2 , Figure 3 , which consists of a box 5, a cable connecting ring 7, a slide plate 8, a sliding assembly 9, a ball screw pair, a rigid rod 13, a crawler 15 and a mass block 16; the lower end of the cable connecting ring 7 is connected to the sliding assembly 9, and the two together make a linear motion in the slide plate 8 with a slide groove (the direction of motion is Figure 1 Taking the orientation shown as an example, it is moving left and right); a ball screw pair connected to the sliding assembly 9 is provided below it, wherein the ball screw pair includes balls 10, a screw 12 and a nut 11, and the sliding assembly 9 is connected to the nut 11; a rigid rod 13 is connected to each end of the screw 12 of the ball screw pair, and the two rigid rods 13 and the slide plate 8 are installed in the fixed seat 14 on the inner wall of the box body 5, respectively ensuring that the rigid rod 13 can rotate around the roller in the fixed seat 14, and the slide plate 8 does not change its position; a track 15 is wound around each rigid rod 13, and a mass block 16 is arranged on each track 15 to ensure that when the track 15 rotates around the rigid rod 13, the mass block 16 can make a straight line motion upward or downward along the track 15, so as to achieve the purpose of amplifying small deformation.

[0040] The friction damper includes two friction dampers, the left friction damper is connected to the mass block 16 at the left end of the small deformation amplification device through a connecting rod 17 in the middle, and the right friction damper is connected to the mass block 16 at the right end of the small deformation amplification device through another connecting rod 17; the two friction dampers have the same structure, and each is composed of a passive plate group, a moving plate group, and a built-in energy dissipator;

[0041] The passive board group includes passive board Ⅰ20, passive board Ⅱ21, passive board Ⅲ24, passive board Ⅳ25, passive board Ⅴ22, and passive board Ⅵ23. The passive boards Ⅰ20, Ⅱ21, Ⅲ24, and Ⅳ25 are of the same size and are all in the shape of arc segments. The passive boards Ⅰ20 and Ⅲ24 are symmetrical up and down, the passive boards Ⅱ21 and Ⅳ25 are symmetrical up and down, the short sides of the passive boards Ⅰ20 and Ⅲ24 are arranged relative to the arc segments, and the short sides of the passive boards Ⅱ21 and Ⅳ25 are arranged relative to the arc segments. Relative arrangement; the passive plate V22 and the passive plate VI23 are of the same size and are both arc-shaped strips, and are relatively arranged; the two inclined surfaces of the passive plate V22 are in sliding friction contact with the arc-shaped inclined surface of the passive plate I20 and the arc-shaped inclined surface of the passive plate III24, respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other; the two inclined surfaces of the passive plate IV23 are in sliding friction contact with the arc-shaped inclined surface of the passive plate II24 and the arc-shaped inclined surface of the passive plate IV25, respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other;

[0042] The movable plate group consists of a movable plate I18 and a movable plate II19, which are of the same size, in a standard square shape, and are arranged opposite to each other; the left end of the movable plate I18 cooperates with the passive plate I20, the right end of the movable plate I18 cooperates with the passive plate II21, the left end of the movable plate II19 cooperates with the passive plate III24, and the right end of the movable plate I19 cooperates with the passive plate IV25, wherein the passive plates I20, II21, III24, and IV25 are all provided with grooves, so that the corresponding movable plates can move up and down along the grooves in the passive plates; the passive plates V22 and VI23 are respectively connected to two retractable spring sleeves 34, the two retractable spring sleeves 34 close to the outside of the box are connected to the base on the side wall of the box, and the two retractable spring sleeves 34 close to the middle position of the box are connected to the base on the partition in the box.

[0043] A retractable spring sleeve 34 is also provided at the bottom of the passive board III 24 and the passive board IV 25, respectively, and the retractable spring sleeve 34 is connected to a base 36 fixed to the bottom of the inner wall of the box body 5;

[0044] The outer wall of the sleeve 34 is made of a retractable material, and a spring 35 is installed in the sleeve 34; the spring 35 is made of a shape memory alloy material, and the superelasticity of the material is utilized to ensure the self-resetting ability of the spring 35, thereby ensuring the self-resetting of the friction damper;

[0045] A closed space is formed in the plate group of the friction damper, and an energy dissipator is placed in the space; the damper is connected to the mass block 16 in the upper small deformation amplification device through a connecting rod 17; the connecting rod 17 passes through the movable plate I 18 and is connected to the built-in energy dissipator in the plate group, so that when the upper small deformation amplification device is in operation, energy can be dissipated between the frictionally contacted plates in the plate group, and damping can be increased through the built-in energy dissipator, thereby achieving a multi-stage energy dissipation effect;

[0046] like Figure 5As shown, the built-in energy absorber is composed of a connecting rod 17, an inner cylinder 26 and a support seat 33; the inner cylinder 26 includes a piston 27, a spherical metal cylinder 28, a rubber conduit 30, a square metal cylinder 29, a damping net 31, and a damping fluid 32; the piston 27 is fixed to the lower end of the connecting rod 17 and can move up and down in the square metal cylinder 29; the square metal cylinder 29 contains the damping fluid 31, and four straight rubber conduits 30 extend out of the cylinder body and are respectively connected to the spherical metal cylinder 28 at the four corners of the inner cylinder 26; the four spherical metal cylinders 28 are connected through four arc-shaped rubber conduits 3 0 connection; a damping net 31 is placed at a certain interval in each rubber conduit 30, and when the piston 27 is pressed downward, the damping liquid 32 in the square metal cylinder 29 is accumulated in the rubber conduit 30 and the spherical metal cylinder 28, and the purpose of increasing the damping force of liquid flow is achieved by using the inertia principle; the built-in energy absorber is fixed in the closed space formed by the friction damper through the support seat 33 at the bottom; a partition 37 is set in the middle of the first energy dissipation device 5, and the same friction damper, built-in energy absorber and telescopic spring sleeve 34 are symmetrically arranged on the left and right sides of the partition 37;

[0047] Furthermore, the structure of the second energy dissipation device 6 is as follows: Figure 6 As shown, a telescopic block 38 and a group of disc springs 39 are installed in the second energy dissipation device 6; both ends of the telescopic block 38 extend outside the wall and are connected to four rods 4, and the bottom of the telescopic block 38 is connected to the disc spring 39. When the wall 1 undergoes vertical deformation, it can drive the deformation of the rod 4 outside the wall 1, thereby compressing the block 38 and the disc spring 39 to achieve energy conversion.

[0048] The working principle of the present invention is as follows:

[0049] The direction of the ball screw axis is defined as the X direction; the direction perpendicular to the ball screw axis is defined as the Y direction. When the wall is subjected to multiple forces in the horizontal and vertical directions, it is easy to deform. The cables and rods outside the wall can not only directly improve the integrity of the wall, but also work together with the small deformation amplification device in the first energy dissipation device to amplify the micro-deformation of the wall, thereby improving the energy dissipation and vibration reduction capacity of the wall. When the wall vibrates in the X direction of the axis, the deformation of the wall will cause the cable to pull the sliding assembly and the groove in the first energy dissipation device to move in the X direction. Since the nut is fixedly connected to the groove, the nut moves axially along the screw in the X direction, and the ball screw converts the linear motion of the nut into the rotational motion of the screw and the rigid rod. The rigid rod drives the track to rotate, and then drives the mass block connected to the track to move in the Y direction. At this time, the connecting rod fixed at the lower end of the mass block pushes the moving plate I in the friction damper to make axial movement along the Y direction. On the one hand, due to the relative movement of the moving plate I, the passive plate group and the moving plate II, which are symmetrically arranged up and down and left and right, squeeze each other, produce friction sliding, and achieve the purpose of primary energy consumption; on the other hand, the piston at the bottom of the connecting rod will continuously squeeze the damping liquid in the square metal cylinder in the inner tube, and use the inertial effect of the liquid flowing from the large-section container to the small-section container to increase the flow rate of the damping liquid in the rubber conduit. In addition, the existence of the damping net achieves the purpose of amplifying the flow damping force of the liquid and secondary energy consumption, further improving the vibration reduction capacity of the device; the retractable spring sleeve arranged outside the friction damper can realize the self-reset ability after the plate group moves, ensuring normal use next time. When the wall vibrates in the Y direction, the rod outside the wall can drive the second energy dissipation device to work, continuously compressing the telescopic block and disc spring in the device, and reducing the vertical deformation of the wall.

[0050] Finally, it should be noted that relational terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A friction-inertia composite wall reinforcement and energy dissipation device, characterized in that: Including the first consumption Energy dissipation device, the first energy dissipation device comprises a first box body, a small deformation amplification device and a friction damper are arranged in the first box body, the small deformation amplification device is arranged at the upper part of the first box body, and two ends of the small deformation amplification device are respectively connected to a friction damper of the same structure, and each friction damper is composed of a passive plate group, a mobile plate group, and a built-in energy dissipation device; the passive plate group comprises a passive plate I, a passive plate II, a passive plate III, and a passive plate IV, and the passive plate I is symmetrical with the passive plate III up and down; the passive plate II is symmetrical with the passive plate IV up and down, and the passive plate I is slidably connected with the passive plate III through an arc-shaped strip-shaped passive plate V, and the passive plate II is slidably connected with the passive plate IV through another arc-shaped strip-shaped passive plate VI; the passive plate I, the passive plate II are slidably connected with the mobile plate I, and the passive plate III and the passive plate IV are slidably connected through the mobile plate II; the energy dissipation device is built-in in the space surrounded by the passive plate group, and the built-in energy dissipation device is connected with the small deformation amplification device; The passive plate VI is connected to the side wall of the box through a telescopic sleeve, and the passive plate V is also connected to the partition located in the box through a telescopic sleeve; the passive plates III and IV are connected to the bottom of the box through a telescopic sleeve; the inner cylinder includes a piston, a spherical metal cylinder, a rubber conduit, a square metal cylinder, a damping fluid, and a damping net; the piston is fixed to the lower end of the connecting rod and moves up and down in the square metal cylinder; the square metal cylinder contains damping fluid, and four rubber conduits extend out of the cylinder, which are respectively connected to the spherical metal cylinders at the four corners of the inner cylinder; the four spherical metal cylinders are connected by four arc-shaped rubber conduits; each rubber conduit Damping nets are placed at certain intervals in the middle; the small deformation amplification device includes a cable connecting ring, a slide plate, a sliding assembly, a ball screw pair, a rigid rod, a crawler and a mass block; the lower end of the cable connecting ring is connected to the sliding assembly, and the two together make a linear motion in the slide plate; a ball screw pair connected to it is provided below the sliding assembly; a rigid rod is connected to each end of the ball screw pair, and the two rigid rods and the slide plate are installed in a fixed seat on the inner wall of the box body, and the rigid rod can rotate around the roller in the fixed seat, and the slide plate does not change its position; the crawler is wound on the rigid rod, and the mass block is connected to the crawler.

2. The friction-inertia composite wall reinforcement and energy dissipation device according to claim 1 is characterized in that: The passive plate I, the passive plate II, the passive plate III and the passive plate IV are all provided with grooves, so that the moving plate I and the moving plate II can move up and down along the grooves.

3. The friction-inertia composite wall reinforcement and energy dissipation device according to claim 1, characterized in that: The two end faces of the passive plate V are in sliding friction contact with the arcuate inclined surface of the passive plate I and the arcuate inclined surface of the passive plate III respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other; the two inclined surfaces of the passive plate VI are in sliding friction contact with the arcuate inclined surface of the passive plate II and the arcuate inclined surface of the passive plate IV respectively, and the corresponding inclined surfaces have convex and concave ridges that match each other.

4. The friction-inertia composite wall reinforcement and energy dissipation device according to claim 1, characterized in that: The built-in energy absorber is composed of a connecting rod, an inner tube and a support seat; the support seat is fixed on the top of the passive plate III and the passive plate IV, the inner tube is fixed on the support seat, and the top of the inner tube is connected to the small deformation amplification device through a connecting rod.

5. The friction-inertia composite wall reinforcement and energy dissipation device according to claim 1, characterized in that: It also includes a second energy dissipation device, which includes a second box body, a telescopic block is installed in the second box body, and a plurality of disc springs are arranged at the bottom of the telescopic block.

6. A wall, characterized in that: A friction-inertia composite wall reinforcement and energy dissipation device as described in any one of claims 1 to 5 is arranged in the wall.

7. The wall according to claim 6, characterized in that: Two first energy dissipation devices are provided and located at two ends of the wall. The two first energy dissipation devices are respectively connected to an anchor located at the top of the wall through two cables.

8. A wall, characterized in that: The friction-inertia composite wall reinforcement and energy dissipation device as claimed in claim 5 is arranged in the wall, two first energy dissipation devices are arranged and located at both ends of the wall, and the two first energy dissipation devices are respectively connected to the anchor located at the top of the wall through two cables, and the second energy dissipation device is located in the middle of the wall, one side of the second energy dissipation device is connected to the top of the wall through two V-shaped rods, and the other side of the second energy dissipation device is connected to the top of the wall through another two V-shaped rods.

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