Large-span venue tuned mass damping device and working method thereof

Abstract

The invention discloses a large-span venue tuned mass damping device and a working method of the large-span venue tuned mass damping device, and relates to the technical field of buildings. Two groups of horizontal trusses are symmetrically and fixedly arranged in the damping box body in parallel, two groups of counterweight modules are symmetrically and slidably arranged on the horizontal trusses, the two groups of counterweight modules are fixed through a limiting frame, and a first rack is fixedly arranged on the limiting frame; a limiting frame is further slidably arranged in the damping box body, the limiting frame is arranged on the horizontal truss, a second rack is correspondingly and fixedly arranged in the direction, facing the horizontal truss, of the limiting frame, and a first fulcrum shaft and a second fulcrum shaft are sequentially arranged between the limiting frame and the horizontal truss in the vertical direction; the second rack can synchronously drive the limiting frame to move, the limiting frame consumes kinetic energy generated when the damping box body and the counterweight module vibrate through the first viscous damper, and then a good damping effect can be achieved in the horizontal direction.

Description

Technical Field

[0001] The invention relates to the field of building technology, and in particular to a large-span venue tuned mass damping device and a working method thereof. Background Art

[0002] As architecture pursues more personalization and differentiation, large-scale comprehensive venues and supporting space buildings, as one of the main public construction projects in the city, often have irregular structural styles in plan and facade in order to meet functional requirements and beautiful appearance. There are many super-high and over-limit beams and slabs, and some structural contours are complex. This has brought a new look to urban construction, but also posed severe challenges to engineering construction.

[0003] In order to improve the earthquake and wind resistance of large-span stadiums, multiple small-mass, same-frequency tuned mass damper systems are installed in large-span stadiums that are considered for both emergency and peacetime use to achieve vibration reduction. MIDAS is used to conduct an overall vertical vibration analysis of the structure, and appropriate damper frequencies and layout points are selected while fully considering the load. The actual frequency and human-induced excitation of the structure after formation are measured by finite element simulation, and the TMD layout scheme is optimized to improve the comfort requirements of large-span stadiums.

[0004] In actual engineering, in order to achieve the predetermined vibration reduction target, the mass of the tuned damper needs to be designed to be very large, usually exceeding 1% of the structure's own weight. However, due to the limitation of the installation space, the mass of the damper cannot be designed to be very large, which makes it difficult to achieve the predetermined vibration reduction target. At the same time, for large-span venues, excessive additional mass will have an adverse effect on the structure; at present, although the tuned mass damping device in the prior art can realize the damper to provide a larger inertial damping force with a smaller mass, the damping direction of the damping device is relatively single, and the large-span venue will not only be subject to lateral vibration during use, but also to vertical vibration. The existing dampers are difficult to meet the demand. Summary of the invention

[0005] The purpose of the present invention is to provide a large-span venue tuned mass damping device and a working method thereof to solve the following technical problems:

[0006] The damping direction of the existing tuned mass damping device is relatively single.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A tuned mass damping device for a large-span venue comprises a damping box; two sets of horizontal trusses are arranged and fixed in parallel and symmetrically in the damping box, two sets of counterweight modules are arranged and symmetrically slidably on the horizontal trusses, the two sets of counterweight modules are fixed by a limit frame, and a first rack is fixedly arranged on the limit frame;

[0009] A limit frame is also slidably arranged in the damping box, the limit frame is arranged on the horizontal truss, a second rack is fixedly arranged in the direction of the limit frame toward the horizontal truss, and a first support shaft and a second support shaft are arranged in sequence between the limit frame and the horizontal truss along the vertical direction;

[0010] Two sets of first gears are symmetrically fixed on the first support shaft, and the first gear is meshed with the second rack. Two sets of second gears are symmetrically fixed on the second support shaft, and the second gear is meshed with the first rack. The first gear is meshed with the second gear synchronously. Both sides of the limit frame are fixed to the inner wall of the damping box through two sets of first viscous dampers.

[0011] Preferably, the counterweight module includes a counterweight mass block, which is slidably arranged in a counterweight frame, and the counterweight frame includes a top frame and a bottom frame, and the top frame and the bottom frame are fixed by a plurality of baffles.

[0012] Preferably, a group of second viscous dampers are respectively arranged on the top surface and the bottom surface of the counterweight mass block close to the corners, and the other end of the second viscous damper is fixed to the top frame or the bottom frame.

[0013] Preferably, guide rods are fixedly arranged on the two groups of horizontal trusses, movable seats are slidably arranged on the guide rods, a guide frame is fixedly arranged on the movable seat, and the top of the guide frame is fixed to the limit frame through a connecting frame;

[0014] Wherein, the first support shaft and the second support shaft penetrate the guide frame and are rotatably connected with the inner wall of the damping box.

[0015] Preferably, the first viscous damper includes a positioning plate symmetrically fixedly arranged on the inner wall of the damping box, first ropes are symmetrically fixedly arranged at both ends of the positioning plate, the end of the first rope is fixed to the shock absorbing mechanism, and the other end of the shock absorbing mechanism is fixed to an ear seat fixedly arranged on the side end of the limit frame through a second rope.

[0016] Preferably, the second viscous damper includes a third rope respectively fixedly arranged on the top surface and the bottom surface of the counterweight mass block close to the corner, the other end of the third rope is fixed to the shock absorbing mechanism, and the other end of the shock absorbing mechanism is fixed to the top frame through a fourth rope.

[0017] Preferably, the shock absorbing mechanism includes a shock absorbing cylinder, in which a piston is slidably arranged, one end of the piston is fixed to the inner wall of the shock absorbing cylinder by a shock absorbing spring, a through hole is provided at one end of the shock absorbing cylinder away from the shock absorbing spring, a shock absorbing rod fixed to the piston is slidably arranged in the through hole, and the end of the shock absorbing rod away from the piston is fixed to the second rope or the fourth rope.

[0018] Preferably, an annular sealing gasket is fixedly arranged on one side of the shock-absorbing cylinder close to the through hole, the shock-absorbing rod is slidably connected to the annular sealing gasket, and the piston and the annular sealing gasket enclose a storage chamber for storing damping liquid.

[0019] Preferably, a plunger is fixedly arranged on one end of the shock-absorbing rod close to the piston, and the outer wall of the plunger is slidably fitted with the wall of the shock-absorbing cylinder to form a damping chamber. A plurality of damping channels are opened on the plunger in a circumferential array, and both ends of the damping channel are respectively connected to the storage chamber and the damping chamber, and the inner diameter of the damping channel gradually decreases in the process of extending from the storage chamber to the damping chamber.

[0020] A working method of a tuned mass damping device for a large-span venue comprises the following steps:

[0021] The damping device is fixed to the double-layer open-web truss steel structure of the venue by means of several groups of bolts;

[0022] Please refer to Figure - Figure. When the venue vibrates laterally, the damping box vibrates synchronously with the steel structure, and relative movement occurs between the counterweight module and the damping box. The counterweight module drives the first rack to slide along the horizontal truss through the limit frame;

[0023] The first rack drives the second rack to move in the direction opposite to the vibration direction of the damping box through the first gear and the second gear, and the second rack drives the limit frame to move synchronously, and the limit frame consumes the kinetic energy of the damping box and the counterweight module when vibrating through the first viscous damper;

[0024] Please refer to Figure - Figure. When the venue vibrates vertically, the damping box drives the counterweight frame to vibrate synchronously with the steel structure. Relative movement occurs between the counterweight mass block and the counterweight frame. The counterweight mass block consumes the kinetic energy of the vibration of the damping box and the counterweight frame through the second viscous damper.

[0025] Beneficial effects of the present invention:

[0026] (1) In the present invention, when the stadium vibrates laterally, the damping box vibrates synchronously with the steel structure, and the counterweight module undergoes displacement hysteresis due to inertia, and relative movement occurs between the counterweight module and the damping box. The counterweight module drives the first rack to slide along the horizontal truss through the limit frame, and the first rack drives the second rack to move in the direction opposite to the vibration direction of the damping box through the first gear and the second gear. The second rack can synchronously drive the limit frame to move, and the limit frame consumes the kinetic energy of the damping box and the counterweight module during vibration through the first viscous damper, thereby achieving a good shock absorption effect in the horizontal direction.

[0027] (2) In the present invention, when the venue vibrates vertically, the damping box drives the counterweight frame to vibrate synchronously with the steel structure, and the counterweight mass block undergoes displacement hysteresis due to inertia, and relative motion occurs between the counterweight mass block and the counterweight frame. The counterweight mass block consumes the kinetic energy of the vibration of the damping box and the counterweight frame through the second viscous damper, thereby achieving a good shock absorption effect in the vertical direction;

[0028] (3) In the initial state of the present invention, the damping liquid does not completely fill the storage chamber. When the second rope or the fourth rope pulls the piston to move toward the through hole through the shock-absorbing rod, the volume of the storage chamber gradually decreases, and the kinetic energy of the piston can be further consumed by the damping liquid to reduce its amplitude. Accordingly, when the piston moves toward the through hole, it can squeeze the damping liquid so that the damping liquid can enter the damping chamber through the damping channel. Since the inner diameter of the damping channel gradually decreases, the damping liquid can interact with the inner wall of the damping channel to further offset the vibration force and enhance the shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 It is a structural schematic diagram of a tuned mass damping device for a large-span venue of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure inside the damping box in a tuned mass damping device for a large-span venue of the present invention;

[0032] Figure 3 It is a structural schematic diagram of a counterweight module in a tuned mass damping device for a large-span venue of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a shock absorbing mechanism in a tuned mass damping device for a large-span venue of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure inside the shock absorbing mechanism in a tuned mass damping device for a large-span venue of the present invention;

[0035] Figure 6 It is a structural schematic diagram of a ball in a tuned mass damping device for a large-span venue of the present invention.

[0036] In the figure: 1, damping box; 2, counterweight module; 3, limit frame; 4, counterweight mass block; 5, shock absorbing mechanism; 101, horizontal truss; 102, positioning plate; 201, guide wheel; 202, guide rod; 203, top frame; 204, baffle; 205, limit frame; 206, first rack; 207, bottom frame; 301, first support shaft; 302, movable seat; 303, second support shaft; 304, second gear; 305, ear seat; 306, first rack; 307, bottom frame; 308, first support shaft; 309, second gear; 310, second gear; 311, second gear; 312, second gear; 313, second gear; 314, second gear; 315, second gear; 316, second gear; 317, second gear; 318, second gear; 319, second gear; 320, second gear; 321, second gear; 322, second gear; 323, second gear; 324, second gear; 325, second gear; 326, second gear; 327, second gear; 328, second gear; 329, second gear; 330, second gear; 331, second gear; 332, second gear; 333, second gear; 334, second gear; 335, second gear; 336, second gear; 337, second gear; 338, second gear; 339, second gear; 340, second gear; 341, second gear; 342, second gear; 343, second gear; 344, second gear; 345, second gear; 346, second gear; 347, second gear; 348, second gear; 349, second gear; 6. Second rope; 307. First rope; 308. Second rack; 309. First gear; 310. Guide frame; 311. Connecting frame; 401. Third rope; 402. Fourth rope; 403. Ball; 501. Shock-absorbing cylinder; 502. Shock-absorbing rod; 503. Ring-shaped sealing gasket; 504. Storage chamber; 505. Piston; 506. Damping chamber; 507. Plunger; 508. Damping channel; 509. Through hole; 510. Shock-absorbing spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] See also Figure 1 As shown, the present invention is a tuned mass damping device for a large-span venue, including a damping box 1; specifically, the damping box 1 is arranged as a hollow structure, and the whole is made of aluminum alloy. When used, it can be fixed to the double-layer open-web truss steel structure of the venue by a plurality of groups of bolts; wherein, the specific number of its settings is not limited, and the actual earthquake resistance and wind resistance requirements can be met.

[0040] See also Figure 1 and Figure 2 Two sets of horizontal trusses 101 are fixedly arranged in parallel and symmetrically in the damping box 1, and two sets of counterweight modules 2 are symmetrically slidably arranged on the horizontal trusses 101. The two sets of counterweight modules 2 are fixed by a limiting frame 205, and a first rack 206 is fixedly arranged on the limiting frame 205;

[0041] A limiting frame 3 is also slidably arranged in the damping box 1. The limiting frame 3 is arranged on the horizontal truss 101. A second rack 308 is fixedly arranged on the limiting frame 3 in the direction of the horizontal truss 101. A first support shaft 301 and a second support shaft 303 are arranged in sequence along the vertical direction between the limiting frame 3 and the horizontal truss 101. The first support shaft 301 and the second support shaft 303 are both rotatably connected to the inner wall of the damping box 1. Two groups of first gears 309 are symmetrically and correspondingly arranged on the first support shaft 301. The first gear 309 meshes with the second rack 308. Two groups of second gears 304 are symmetrically and correspondingly arranged on the second support shaft 303. The second gear 304 meshes with the first rack 206, and the first gear 309 meshes with the second gear 304 synchronously.

[0042] Both sides of the limit frame 3 are fixed to the inner wall of the damping box 1 through two sets of first viscous dampers respectively;

[0043] In this embodiment, when the venue vibrates laterally, the damping box 1 vibrates synchronously with the steel structure, and the counterweight module 2 undergoes displacement hysteresis due to inertia, and relative movement occurs between the counterweight module 2 and the damping box 1. The counterweight module 2 drives the first rack 206 to slide along the horizontal truss 101 through the limit frame 205. The first rack 206 drives the second rack 308 to move in the direction opposite to the vibration direction of the damping box 1 through the first gear 309 and the second gear 304. The second rack 308 can synchronously drive the limit frame 3 to move. The limit frame 3 consumes the kinetic energy of the damping box 1 and the counterweight module 2 during vibration through the first viscous damper, thereby achieving a good shock absorption effect in the horizontal direction.

[0044] Example 2

[0045] Based on Example 1, please refer to Figure 2-Figure 4 The counterweight module 2 includes a counterweight mass block 4, which is slidably arranged in a counterweight frame. The counterweight frame includes a top frame 203 and a bottom frame 207. The top frame 203 and the bottom frame 207 are fixed by several groups of baffles 204. Specifically, the counterweight mass block 4 is placed in the counterweight frame so that the counterweight mass block 4 can only be lifted and lowered in the vertical direction in the counterweight frame.

[0046] In this embodiment, a group of second viscous dampers are arranged on the top surface and the bottom surface of the counterweight mass block 4 close to the corner, and the other end of the second viscous damper is fixed to the top frame 203 or the bottom frame 207; specifically, in this embodiment, the counterweight mass block 4 is hoisted in the counterweight frame through a plurality of groups of second viscous dampers, and at the same time, the counterweight mass block 4 is horizontally limited by the baffle 204 so that the counterweight mass block 4 can only be raised and lowered in the counterweight frame; it can be explained that when the venue vibrates vertically, the damping box 1 drives the counterweight frame to vibrate synchronously with the steel structure, and the counterweight mass block 4 has displacement hysteresis due to the action of inertia, and relative movement occurs between the counterweight mass block 4 and the counterweight frame. The counterweight mass block 4 consumes the kinetic energy of the damping box 1 and the counterweight frame during vibration through the second viscous damper, thereby achieving a good shock absorption effect in the vertical direction.

[0047] As a further solution of this embodiment, please refer to Figure 6 A plurality of groups of balls 403 are evenly distributed on each surface of the counterweight mass block 4, and the other end of the ball 403 rolls against the baffle 204; specifically, by arranging the ball 403, the friction resistance of the counterweight mass block 4 when it is raised or lowered in the counterweight frame can be reduced, thereby improving the shock absorption effect.

[0048] In this embodiment, the guide wheel 201 is rotatably arranged on the outer side of the baffle plates 204 on both sides, and the guide wheel 201 is rollingly arranged on the horizontal truss 101; it can be explained that when the counterweight module 2 moves along the horizontal truss 101, the guide wheel 201 rolls synchronously on the horizontal truss 101 to improve the stability of the counterweight module 2 during movement.

[0049] See also Figure 2 When the limit frame 3 slides in the damping box 1, in order to improve the sliding stability, in this embodiment, the guide rods 202 are fixedly arranged on the two groups of horizontal trusses 101, and the movable seats 302 are slidably arranged on the guide rods 202. The guide frame 310 is fixedly arranged on the movable seat 302, and the top of the guide frame 310 is fixed to the limit frame 3 through the connecting frame 311, wherein the first support shaft 301 and the second support shaft 303 penetrate the guide frame 310 and are rotatably connected with the inner wall of the damping box 1; specifically, when the limit frame 3 slides in the damping box 1, the limit frame 3 drives the movable seat 302 to slide on the guide rod 202 through the connecting frame 311 and the guide frame 310. Accordingly, in this embodiment, a guide frame 310 that can penetrate the first support shaft 301 and the second support shaft 303 is provided to avoid interference between the guide frame 310 and the first support shaft 301 and the second support shaft 303 when the guide frame 310 moves.

[0050] In this embodiment, please refer to Figure 2The first viscous damper includes a positioning plate 102 symmetrically fixedly arranged on the inner wall of the damping box 1, and first ropes 307 are symmetrically fixedly arranged at both ends of the positioning plate 102. The end of the first rope 307 is fixed to the shock absorbing mechanism 5, and the other end of the shock absorbing mechanism 5 is fixed to the ear seat 305 fixedly arranged on the side end of the limit frame 3 through the second rope 306; specifically, when the limit frame 3 moves, the limit frame 3 applies force to the shock absorbing mechanism 5 through the first rope 307 and the second rope 306, and the kinetic energy of the damping box 1 and the counterweight module 2 during vibration is consumed through the shock absorbing mechanism 5.

[0051] See also Figure 3 The second viscous damper includes a third rope 401 which is fixedly arranged on the top surface and the bottom surface of the counterweight mass block 4 close to the corner, the other end of the third rope 401 is fixed to the shock absorbing mechanism 5, and the other end of the shock absorbing mechanism 5 is fixed to the top frame 203 through a fourth rope 402; specifically, when relative movement occurs between the counterweight mass block 4 and the counterweight frame, the counterweight mass block 4 applies force to the shock absorbing mechanism 5 through the third rope 401 and the fourth rope 402, and the counterweight mass block 4 consumes the kinetic energy of the damping box 1 and the counterweight frame during vibration through the shock absorbing mechanism 5.

[0052] See also Figure 4-Figure 5 The shock absorbing mechanism 5 includes a shock absorbing cylinder 501, a piston 505 is slidably arranged in the shock absorbing cylinder 501, one end of the piston 505 is fixed to the inner wall of the shock absorbing cylinder 501 through a shock absorbing spring 510, a through hole 509 is provided at one end of the shock absorbing cylinder 501 away from the shock absorbing spring 510, a shock absorbing rod 502 fixed to the piston 505 is slidably arranged in the through hole 509, and one end of the shock absorbing rod 502 away from the piston 505 is fixed to the second rope 306 or the fourth rope 402; specifically, when the limiting frame 3 or the counterweight mass block 4 moves, the shock absorbing rod 502 is pulled to slide in the through hole 509 by the second rope 306 or the fourth rope 402 respectively, and the shock absorbing rod 502 can synchronously drive the piston 505 to slide in the shock absorbing cylinder 501, thereby driving the shock absorbing spring 510 to stretch, and the shock absorbing spring 510 converts the pulling force into elastic force to achieve the shock absorbing effect.

[0053] In this embodiment, an annular sealing gasket 503 is fixedly arranged on one side of the shock absorbing cylinder 501 close to the through hole 509, the shock absorbing rod 502 is slidably connected to the annular sealing gasket 503, and the piston 505 and the annular sealing gasket 503 enclose a storage chamber 504 for storing damping liquid;

[0054] Specifically, the damping liquid is silicone oil or glycerin; this is not limited in the present embodiment.

[0055] It can be explained that, in the initial state, the damping liquid does not completely fill the storage chamber 504. When the second rope 306 or the fourth rope 402 pulls the piston 505 toward the through hole 509 through the shock absorber rod 502, the volume of the storage chamber 504 gradually decreases, and its kinetic energy can be further consumed by the damping liquid, thereby reducing its amplitude.

[0056] Furthermore, a plunger 507 is fixedly arranged on one end of the shock-absorbing rod 502 close to the piston 505, and the outer wall of the plunger 507 is slidably fitted with the wall of the shock-absorbing cylinder 501, and a damping chamber 506 is formed between the plunger 507 and the piston 505. A plurality of damping channels 508 are opened on the plunger 507 in a circumferential array, and the two ends of the damping channel 508 are respectively connected with the storage chamber 504 and the damping chamber 506. In the process of extending from the storage chamber 504 to the damping chamber 506, the inner diameter of the damping channel 508 gradually decreases; it can be explained that in the process of the piston 505 moving toward the through hole 509, it can squeeze the damping liquid, so that the damping liquid can enter the damping chamber 506 through the damping channel 508. Since the inner diameter of the damping channel 508 gradually decreases, the damping liquid can interact with the inner wall of the damping channel 508 to further offset the vibration force and enhance the shock-absorbing effect.

[0057] A working method of a tuned mass damping device for a large-span venue comprises the following steps:

[0058] The damping device is fixed to the double-layer open-web truss steel structure of the venue by means of several groups of bolts;

[0059] See also Figure 1-Figure 2 When the venue vibrates laterally, the damping box 1 vibrates synchronously with the steel structure, and the counterweight module 2 and the damping box 1 move relative to each other. The counterweight module 2 drives the first rack 206 to slide along the horizontal truss 101 through the limit frame 205;

[0060] The first rack 206 drives the second rack 308 to move in the direction opposite to the vibration direction of the damping box 1 through the first gear 309 and the second gear 304, and the second rack 308 simultaneously drives the limit frame 3 to move, and the limit frame 3 consumes the kinetic energy of the damping box 1 and the counterweight module 2 during vibration through the first viscous damper;

[0061] See also Figure 2-Figure 3 When the venue vibrates vertically, the damping box 1 drives the counterweight frame to vibrate synchronously with the steel structure, and relative movement occurs between the counterweight mass block 4 and the counterweight frame. The counterweight mass block 4 consumes the kinetic energy of the vibration of the damping box 1 and the counterweight frame through the second viscous damper.

[0062] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A tuned mass damping device for a large-span venue, comprising a damping box (1); characterized in that: Two groups of horizontal trusses (101) are fixedly arranged in parallel and symmetrically in the damping box (1); two groups of counterweight modules (2) are symmetrically and slidably arranged on the horizontal trusses (101); the two groups of counterweight modules (2) are fixed by a limiting frame (205); and a first rack (206) is fixedly arranged on the limiting frame (205); A limiting frame (3) is also slidably arranged in the damping box (1), the limiting frame (3) is arranged on the horizontal truss (101), a second rack (308) is fixedly arranged on the limiting frame (3) in the direction of the horizontal truss (101), and a first support shaft (301) and a second support shaft (303) are arranged between the limiting frame (3) and the horizontal truss (101); Two groups of first gears (309) are symmetrically and fixedly arranged on the first support shaft (301), the first gears (309) are meshed with the second rack (308), two groups of second gears (304) are fixedly arranged on the second support shaft (303), the second gears (304) are meshed with the first rack (206), and the first gears (309) are meshed with the second gears (304); the two sides of the limit frame (3) are fixed to the damping box (1) through two groups of first viscous dampers.

2. A tuned mass damping device for a large-span venue according to claim 1, characterized in that: The counterweight module (2) comprises a counterweight mass block (4), the counterweight mass block (4) is slidably arranged in a counterweight frame, the counterweight frame comprises a top frame (203) and a bottom frame (207), and the top frame (203) and the bottom frame (207) are fixed by a plurality of baffles (204).

3. A tuned mass damping device for a large-span venue according to claim 2, characterized in that: A group of second viscous dampers are respectively arranged on the top surface and the bottom surface of the counterweight mass block (4) close to the corners, and the other end of the second viscous damper is fixed to the top frame (203) or the bottom frame (207).

4. A tuned mass damping device for a large-span venue according to claim 1, characterized in that: The two groups of horizontal trusses (101) are fixedly provided with guide rods (202), the guide rods (202) are slidably provided with movable seats (302), the movable seats (302) are fixedly provided with guide frames (310), and the top of the guide frames (310) is fixed to the limiting frame (3) via a connecting frame (311); The first support shaft (301) and the second support shaft (303) penetrate the guide frame (310) and are rotatably connected to the inner wall of the damping box (1).

5. A tuned mass damping device for a large-span venue according to claim 3, characterized in that: The first viscous damper comprises a positioning plate (102) symmetrically fixedly arranged on the inner wall of the damping box (1), first ropes (307) are symmetrically fixedly arranged at both ends of the positioning plate (102), the ends of the first ropes (307) are fixed to the shock absorbing mechanism (5), and the other end of the shock absorbing mechanism (5) is fixed to an ear seat (305) fixedly arranged on the side end of the limiting frame (3) via a second rope (306).

6. A tuned mass damping device for a large-span venue according to claim 5, characterized in that: The second viscous damper comprises a third rope (401) respectively fixedly arranged on the top surface and the bottom surface of the counterweight mass block (4) close to the corner, the other end of the third rope (401) is fixed to the shock absorbing mechanism (5), and the other end of the shock absorbing mechanism (5) is fixed to the top frame (203) via a fourth rope (402).

7. A tuned mass damping device for a large-span venue according to claim 6, characterized in that: The shock absorbing mechanism (5) comprises a shock absorbing cylinder (501), a piston (505) is slidably arranged in the shock absorbing cylinder (501), one end of the piston (505) is fixed to the inner wall of the shock absorbing cylinder (501) via a shock absorbing spring (510), a through hole (509) is provided at one end of the shock absorbing cylinder (501) away from the shock absorbing spring (510), a shock absorbing rod (502) fixed to the piston (505) is slidably arranged in the through hole (509), and one end of the shock absorbing rod (502) away from the piston (505) is fixed to the second rope (306) or the fourth rope (402).

8. A tuned mass damping device for a large-span venue according to claim 7, characterized in that: An annular sealing gasket (503) is fixedly arranged on one side of the shock-absorbing cylinder (501) close to the through hole (509), the shock-absorbing rod (502) is slidably connected to the annular sealing gasket (503), and the piston (505) and the annular sealing gasket (503) are enclosed to form a storage chamber (504) for storing damping liquid.

9. A tuned mass damping device for a large-span venue according to claim 8, characterized in that: A plunger (507) is fixedly arranged on one end of the shock-absorbing rod (502) close to the piston (505), and the outer wall of the plunger (507) is slidably fitted with the wall of the shock-absorbing cylinder (501), and a damping chamber (506) is formed between the plunger (507) and the piston (505). A plurality of groups of damping channels (508) are arranged in a circumferential array on the plunger (507), and the two ends of the damping channel (508) are respectively connected to the storage chamber (504) and the damping chamber (506), and the inner diameter of the damping channel (508) gradually decreases in the process of extending from the storage chamber (504) to the damping chamber (506).

10. A method for operating a tuned mass damping device for a large-span venue according to any one of claims 1 to 9, characterized in that: The steps include: The damping device is fixed to the double-layer open-web truss steel structure of the venue by means of several groups of bolts; When the stadium vibrates laterally, the damping box (1) vibrates synchronously with the steel structure, and relative movement occurs between the counterweight module (2) and the damping box (1). The counterweight module (2) drives the first rack (206) to slide along the horizontal truss (101) through the limit frame (205); The first rack (206) drives the second rack (308) to move in a direction opposite to the vibration direction of the damping box (1) through the first gear (309) and the second gear (304), and the second rack (308) simultaneously drives the limit frame (3) to move, and the limit frame (3) consumes the kinetic energy of the damping box (1) and the counterweight module (2) during vibration through the first viscous damper; When the venue vibrates vertically, the damping box (1) drives the counterweight frame to vibrate synchronously with the steel structure, and relative movement occurs between the counterweight mass block (4) and the counterweight frame. The counterweight mass block (4) consumes the kinetic energy of the vibration of the damping box (1) and the counterweight frame through the second viscous damper.

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