A tuned mass damping device for large-span stadiums and its working method

Abstract

This invention discloses a tuned mass damping device for large-span stadiums and its working method, relating to the field of building technology. The damping device includes a damping box; two sets of horizontal trusses are fixedly arranged in parallel and symmetrical arrangement within the damping box, and two sets of counterweight modules are symmetrically slidably arranged on the horizontal trusses. The two sets of counterweight modules are fixed by a limiting frame, and a first rack is fixedly arranged on the limiting frame; a limiting frame is also slidably arranged within the damping box, arranged on the horizontal trusses, and a second rack is fixedly arranged on the limiting frame in the direction facing the horizontal trusses. A first support shaft and a second support shaft are arranged sequentially in the vertical direction between the limiting frame and the horizontal trusses; the second rack of this invention can synchronously drive the movement of the limiting frame, and the limiting frame dissipates the kinetic energy of the damping box and the counterweight modules during vibration through a first viscous damper, thereby achieving a good vibration reduction effect in the horizontal direction.

Description

Technical Field

[0001] This invention relates to the field of building technology, specifically to a tuned mass damping device for large-span stadiums and its working method. Background Art

[0002] As architecture pursues greater personalization and differentiation, large-scale comprehensive stadiums and supporting spaces, as one of the city's major public building projects, often feature irregular structural styles in their plan and elevation to meet functional needs and aesthetic appeal. These structures often include numerous ultra-high and oversized beams and slabs, and complex outlines in some parts, which not only bring a new look to urban construction but also pose serious challenges to engineering construction.

[0003] To improve the seismic and wind resistance of large-span stadiums, a system of multiple small-mass, in-situ tuned mass dampers (TMDs) was installed in the stadium, which is designed for both emergency and non-emergence use, to achieve vibration reduction. By performing a comprehensive vertical vibration analysis of the structure using MIDAS, and taking full account of the loads, appropriate damper frequencies and placement points were selected. Finite element simulation was then used to determine the actual frequencies and man-induced excitations after the structure was completed, optimizing the TMD placement scheme and improving the comfort requirements of the large-span stadium.

[0004] In practical engineering, to achieve the predetermined vibration reduction target, the mass of a tuned damper needs to be designed to be very large, typically exceeding 1% of the structure's own weight. However, due to space constraints, the damper's mass cannot be designed to be very large, making it difficult to achieve the predetermined vibration reduction target. Furthermore, for large-span stadiums, excessive added mass can have adverse effects on the structure. Currently, while existing tuned mass damping devices can provide a large inertial damping force with a relatively small mass, the damping direction is relatively unidirectional. Large-span stadiums, however, are subjected to both lateral and vertical vibrations during use, making existing dampers insufficient to meet the requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a tuned mass damping device for large-span stadiums and its working method, thereby solving the following technical problems:

[0006] The existing tuned mass damping devices have a relatively singular damping direction.

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

[0008] A large-span stadium tuned mass damping device includes a damping box; two sets of horizontal trusses are fixedly arranged in parallel and symmetrical arrangement in the damping box, and two sets of counterweight modules are symmetrically slidably arranged on the horizontal trusses. The two sets of counterweight modules are fixed by a limiting frame, and a first rack is fixedly arranged on the limiting frame.

[0009] The damping box is also equipped with a sliding limit frame, which is arranged on a horizontal truss. A second rack is fixedly arranged on the limit frame in the direction of the horizontal truss. A first support shaft and a second support shaft are arranged in sequence in the vertical direction between the limit frame and the horizontal truss.

[0010] Two sets of first gears are symmetrically and fixedly arranged on the first support shaft, and the first gears mesh with the second rack. Two sets of second gears are symmetrically and fixedly arranged on the second support shaft, and the second gears mesh with the first rack. The first gears and the second gears mesh synchronously. The two sides of the limiting frame are fixed to the inner wall of the damping box by two sets of first viscous dampers.

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

[0012] Preferably, a set of second viscous dampers is provided on the top and bottom surfaces of the counterweight mass block near the corner, 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 sets of horizontal trusses, movable seats are slidably arranged on the guide rods, guide frames are fixedly arranged on the movable seats, and the top of the guide frames is fixed to the limiting frame through a connecting frame;

[0014] The first and second support shafts are rotatably connected through the guide frame and 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, with first ropes symmetrically fixedly arranged at both ends of the positioning plate. The ends of the first ropes are fixed to the damping mechanism, and the other end of the damping mechanism is fixed to the ear seat fixedly arranged on the side of the limiting frame via a second rope.

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

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

[0018] Preferably, an annular sealing gasket is fixedly arranged on the side of the shock absorber cylinder facing the through hole, the shock absorber rod is slidably connected to the annular sealing gasket, and the piston and the annular sealing gasket enclose a storage cavity for storing damping fluid.

[0019] Preferably, a plunger is fixedly arranged on one end of the shock absorber rod near the piston. The outer wall of the plunger slides against the wall of the shock absorber cylinder, and a damping cavity is formed between the plunger and the piston. Several sets of damping channels are opened in a circumferential array on the plunger. The two ends of the damping channels are respectively connected to the storage cavity and the damping cavity. As the channel extends from the storage cavity to the damping cavity, the inner diameter of the damping channel gradually decreases.

[0020] A method for operating a tuned mass damping device for a large-span stadium includes the following steps:

[0021] The damping device was fixed to the double-layered hollow truss steel structure of the stadium using several sets of bolts.

[0022] Please refer to Figure 1-2. When the stadium experiences lateral vibration, the damping box vibrates synchronously with the steel structure. The counterweight module and the damping box move relative to each other. 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 opposite direction to the vibration direction of the damping box through the first gear and the second gear. The second rack synchronously drives the limiting frame to move. The limiting frame consumes the kinetic energy of the damping box and the counterweight module during vibration through the first viscous damper.

[0024] Please refer to Figure 1-2. When the stadium experiences vertical vibration, the damping box drives the counterweight frame to vibrate synchronously with the steel structure. The counterweight mass block and the counterweight frame move relative to each other. The counterweight mass block dissipates the kinetic energy of the damping box and the counterweight frame during vibration through the second viscous damper.

[0025] The beneficial effects of this invention are:

[0026] (1) In this invention, when the venue vibrates laterally, the damping box vibrates synchronously with the steel structure, while the counterweight module experiences displacement lag due to inertia. The counterweight module and the damping box move relative to each other. The counterweight module drives the first rack to slide along the horizontal truss through the limiting frame. The first rack drives the second rack to move in the opposite direction to the vibration direction of the damping box through the first gear and the second gear. The second rack can synchronously drive the limiting frame to move. The limiting frame consumes the kinetic energy of the damping box and the counterweight module during vibration through the first viscous damper, thereby achieving a good vibration reduction effect in the horizontal direction.

[0027] (2) In this invention, when the venue experiences vertical vibration, the damping box drives the counterweight frame to vibrate synchronously with the steel structure, while the counterweight mass block experiences displacement lag due to inertia. The counterweight mass block and the counterweight frame move relative to each other. The counterweight mass block dissipates the kinetic energy of the damping box and the counterweight frame during vibration through the second viscous damper, thereby achieving a good vibration reduction effect in the vertical direction.

[0028] (3) In the initial state, the damping liquid does not completely fill the storage cavity. When the second or fourth rope pulls the piston toward the through hole through the shock absorber, the volume of the storage cavity gradually decreases. The damping liquid can further consume its kinetic energy and reduce its amplitude. Correspondingly, as the piston moves toward the through hole, it can squeeze the damping liquid, allowing the damping liquid to enter the damping cavity 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 damping effect. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the structure of a tuned mass damping device for a large-span stadium according to the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the damping box in a large-span stadium tuned mass damping device according to the present invention.

[0032] Figure 3 This is a schematic diagram of the counterweight module in a large-span stadium tuned mass damping device according to the present invention.

[0033] Figure 4 This is a schematic diagram of the damping mechanism in a tuned mass damping device for a large-span stadium according to the present invention.

[0034] Figure 5 This is a schematic diagram of the internal structure of the damping mechanism in a large-span stadium tuned mass damping device according to the present invention.

[0035] Figure 6 This is a schematic diagram of the ball bearing structure in a tuned mass damping device for a large-span stadium according to the present invention.

[0036] In the diagram: 1. Damping housing; 2. Counterweight module; 3. Limiting frame; 4. Counterweight mass block; 5. Vibration damping mechanism; 101. Horizontal truss; 102. Positioning plate; 201. Guide wheel; 202. Guide rod; 203. Top frame; 204. Baffle; 205. Limiting frame; 206. First rack; 207. Bottom frame; 301. First support shaft; 302. Movable seat; 303. Second support shaft; 304. Second gear; 305. Ear seat; 30 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 bearing; 501. Shock absorber; 502. Shock absorber rod; 503. Annular sealing gasket; 504. Storage cavity; 505. Piston; 506. Damping cavity; 507. Plunger; 508. Damping channel; 509. Through hole; 510. Shock absorber spring. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0038] Example 1

[0039] Please see Figure 1 As shown, the present invention is a tuned mass damping device for a large-span stadium, including a damping box 1. Specifically, the damping box 1 is a hollow structure, and its entire body is made of aluminum alloy. In application, it can be fixed to the double-layer hollow truss steel structure of the stadium by several sets of bolts. The specific number of damping boxes is not limited, as long as it meets the actual earthquake resistance and wind resistance requirements.

[0040] Please see Figure 1 and Figure 2 Two sets of horizontal trusses 101 are fixedly arranged in parallel and symmetrical arrangement in the damping box 1. 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 the limiting frame 205. The 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 in the direction of the limiting frame 3 toward the horizontal truss 101. A first support shaft 301 and a second support shaft 303 are arranged in sequence in the vertical direction between the limiting frame 3 and the horizontal truss 101. Both the first support shaft 301 and the second support shaft 303 are rotatably connected to the inner wall of the damping box 1. Two sets of first gears 309 are symmetrically fixedly arranged on the first support shaft 301. The first gears 309 mesh with the second rack 308. Two sets of second gears 304 are symmetrically fixedly arranged on the second support shaft 303. The second gears 304 mesh with the first rack 206. The first gears 309 and the second gears 304 mesh synchronously.

[0042] The limiting frame 3 is fixed to the inner wall of the damping box 1 by two sets of first viscous dampers on both sides;

[0043] In this embodiment, when the venue experiences lateral vibration, the damping box 1 vibrates synchronously with the steel structure, while the counterweight module 2 experiences displacement lag due to inertia. Relative motion 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 via the limiting frame 205. The first rack 206 drives the second rack 308 to move in the opposite direction to the vibration direction of the damping box 1 via the first gear 309 and the second gear 304. The second rack 308 can synchronously drive the limiting frame 3 to move. The limiting frame 3 dissipates the kinetic energy of the damping box 1 and the counterweight module 2 during vibration through the first viscous damper, thereby achieving a good vibration reduction effect in the horizontal direction.

[0044] Example 2

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

[0046] In this embodiment, a set of second viscous dampers is respectively arranged on the top and bottom surfaces of the counterweight block 4 near the corners. 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 block 4 is hoisted into the counterweight frame by several sets of second viscous dampers. At the same time, the counterweight block 4 is horizontally limited by the baffle 204 so that the counterweight block 4 can only move up and down in the counterweight frame. It can be explained that when the stadium vibrates vertically, the damping box 1 drives the counterweight frame to vibrate synchronously with the steel structure. The counterweight block 4 experiences displacement lag due to inertia, and relative movement occurs between the counterweight block 4 and the counterweight frame. The counterweight block 4 dissipates the kinetic energy of the damping box 1 and the counterweight frame during vibration through the second viscous dampers, thereby achieving a good vibration reduction effect in the vertical direction.

[0047] As a further solution in this embodiment, please refer to Figure 6 The counterweight block 4 has several sets of balls 403 evenly distributed on each side, and the other end of the balls 403 rolls against the baffle 204. Specifically, by setting the balls 403, the frictional resistance of the counterweight block 4 when it rises and falls in the counterweight frame can be reduced, thereby improving the shock absorption effect.

[0048] In this embodiment, guide wheels 201 are rotatably arranged on the outer side of the two side baffles 204, and the guide wheels 201 are rolled on the horizontal truss 101. It can be explained that when the counterweight module 2 moves along the horizontal truss 101, the guide wheels 201 roll synchronously on the horizontal truss 101 to improve the stability of the counterweight module 2 during movement.

[0049] Please see Figure 2 In order to improve the stability of sliding when the limiting frame 3 slides in the damping box 1, in this embodiment, guide rods 202 are fixedly arranged on two sets of horizontal trusses 101, movable seats 302 are slidably arranged on the guide rods 202, and guide frames 310 are fixedly arranged on the movable seats 302. The top of the guide frames 310 is fixed to the limiting frame 3 through the connecting frame 311. The first support shaft 301 and the second support shaft 303 pass through the guide frames 310 and are rotatably connected to the inner wall of the damping box 1. Specifically, when the limiting frame 3 slides in the damping box 1, the limiting frame 3 drives the movable seat 302 to slide on the guide rods 202 through the connecting frame 311 and the guide frames 310. Accordingly, in this embodiment, by setting the guide frames 310 that can pass through the first support shaft 301 and the second support shaft 303, interference between the guide frames 310 and the first support shaft 301 and the second support shaft 303 is avoided when the guide frames 310 move.

[0050] In this embodiment, please refer to Figure 2The first viscous damper includes a positioning plate 102 symmetrically fixed on the inner wall of the damping box 1. The two ends of the positioning plate 102 are symmetrically fixed with first ropes 307. The end of the first rope 307 is fixed to the damping mechanism 5. The other end of the damping mechanism 5 is fixed to the ear seat 305 fixed on the side of the limiting frame 3 via a second rope 306. Specifically, when the limiting frame 3 moves, the limiting frame 3 applies force to the damping mechanism 5 through the first rope 307 and the second rope 306, and the damping mechanism 5 dissipates the kinetic energy of the damping box 1 and the counterweight module 2 during vibration.

[0051] Please see Figure 3 The second viscous damper includes a third rope 401 fixedly arranged on the top surface and bottom surface of the counterweight block 4 near the corner. The other end of the third rope 401 is fixed to the damping mechanism 5, and the other end of the damping mechanism 5 is fixed to the top frame 203 through a fourth rope 402. Specifically, when relative movement occurs between the counterweight block 4 and the counterweight frame, the counterweight block 4 applies force to the damping mechanism 5 through the third rope 401 and the fourth rope 402. The counterweight block 4 dissipates the kinetic energy of the damping box 1 and the counterweight frame during vibration through the damping mechanism 5.

[0052] Please see Figures 4-5 The shock absorption mechanism 5 includes a shock absorber cylinder 501, a piston 505 slidably arranged inside the shock absorber cylinder 501, one end of the piston 505 being fixed to the inner wall of the shock absorber cylinder 501 via a shock absorber spring 510, and a through hole 509 being opened at the end of the shock absorber cylinder 501 away from the shock absorber spring 510. A shock absorber rod 502 fixed to the piston 505 is slidably arranged in the through hole 509, and the end of the shock absorber rod 502 away from the piston 505 is fixed to a second rope 306 or a fourth rope 402. Specifically, when the limiting frame 3 or the counterweight block 4 moves, the shock absorber rod 502 is pulled to slide in the through hole 509 via the second rope 306 or the fourth rope 402, respectively. The shock absorber rod 502 can synchronously drive the piston 505 to slide in the shock absorber cylinder 501, thereby driving the shock absorber spring 510 to stretch. The shock absorber spring 510 converts the tension into elasticity, achieving the effect of shock absorption.

[0053] In this embodiment, an annular sealing gasket 503 is fixedly arranged on the side of the shock absorber 501 facing the through hole 509, the shock absorber 502 is slidably connected to the annular sealing gasket 503, and the piston 505 and the annular sealing gasket 503 enclose to form a storage cavity 504 for storing damping fluid.

[0054] Specifically, the damping fluid is silicone oil or glycerin; this embodiment does not limit this.

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

[0056] Furthermore, a plunger 507 is fixedly arranged on one end of the damping rod 502 near the piston 505. The outer wall of the plunger 507 slides against the wall of the damping cylinder 501, and the plunger 507 and the piston 505 enclose a damping cavity 506. Several sets of damping channels 508 are circumferentially arrayed on the plunger 507. The two ends of the damping channels 508 are connected to the storage cavity 504 and the damping cavity 506, respectively. As the damping channel 508 extends from the storage cavity 504 to the damping cavity 506, the inner diameter of the damping channel 508 gradually decreases. It can be explained that as the piston 505 moves towards the through hole 509, it can squeeze the damping fluid, allowing the damping fluid to enter the damping cavity 506 through the damping channel 508. Since the inner diameter of the damping channel 508 gradually decreases, the damping fluid can interact with the inner wall of the damping channel 508 to further offset the vibration force and enhance the damping effect.

[0057] A method for operating a tuned mass damping device for a large-span stadium includes the following steps:

[0058] The damping device was fixed to the double-layered hollow truss steel structure of the stadium using several sets of bolts.

[0059] Please see Figures 1-2 When the stadium experiences lateral vibration, the damping box 1 vibrates synchronously with the steel structure, and the counterweight module 2 moves relative to 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.

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

[0061] Please see Figures 2-3 When the stadium experiences vertical vibration, the damping box 1 drives the counterweight frame to vibrate synchronously with the steel structure. The counterweight mass block 4 and the counterweight frame move relative to each other. The counterweight mass block 4 dissipates the kinetic energy of the damping box 1 and the counterweight frame during vibration through the second viscous damper.

[0062] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0063] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A tuned mass damping device for a large-span stadium, comprising a damping housing (1); characterized in that, The damping box (1) has two sets of horizontal trusses (101) arranged in parallel and symmetrically. Two sets of counterweight modules (2) are arranged in parallel and symmetrically on the horizontal trusses (101). The two sets of counterweight modules (2) are fixed by a limiting frame (205). A first rack (206) is fixed on the limiting frame (205). The damping box (1) is also slidably arranged with a limiting frame (3), which is arranged on the horizontal truss (101). The limiting frame (3) is fixedly arranged with a second rack (308) in the direction of the limiting frame (3) toward the horizontal truss (101). A first support shaft (301) and a second support shaft (303) are arranged between the limiting frame (3) and the horizontal truss (101). Two sets of first gears (309) are symmetrically and fixedly arranged on the first support shaft (301). The first gears (309) mesh with the second rack (308). Two sets of second gears (304) are fixedly arranged on the second support shaft (303). The second gears (304) mesh with the first rack (206). The first gears (309) mesh with the second gears (304). The limiting frame (3) is fixed to the damping box (1) on both sides by two sets of first viscous dampers. The counterweight module (2) includes a counterweight mass block (4), which is slidably arranged in the counterweight frame. The counterweight frame includes a top frame (203) and a bottom frame (207), which are fixed by a number of baffles (204).

2. The tuned mass damping device for a large-span stadium according to claim 1, characterized in that, A set of second viscous dampers is respectively arranged on the top and bottom surfaces of the counterweight mass block (4) near the corner, and the other end of the second viscous damper is fixed to the top frame (203) or the bottom frame (207).

3. The tuned mass damping device for a large-span stadium according to claim 1, characterized in that, Guide rods (202) are fixedly arranged on the two sets of horizontal trusses (101), movable seats (302) are slidably arranged on the guide rods (202), and guide frames (310) are fixedly arranged on the movable seats (302). The top of the guide frames (310) is fixed to the limiting frame (3) through the connecting frame (311); The first support shaft (301) and the second support shaft (303) are rotatably connected through the guide frame (310) and the inner wall of the damping box (1).

4. A tuned mass damping device for a large-span stadium according to claim 2, characterized in that, The first viscous damper includes a positioning plate (102) symmetrically fixed on the inner wall of the damping box (1). The two ends of the positioning plate (102) are symmetrically fixed with first ropes (307). The end of the first rope (307) is fixed to the damping mechanism (5). The other end of the damping mechanism (5) is fixed to the ear seat (305) fixed on the side of the limiting frame (3) by a second rope (306).

5. A tuned mass damping device for a large-span stadium according to claim 4, characterized in that, The second viscous damper includes a third rope (401) fixedly arranged on the top surface and bottom surface of the counterweight mass block (4) near the corner. The other end of the third rope (401) is fixed to the shock absorption mechanism (5), and the other end of the shock absorption mechanism (5) is fixed to the top frame (203) through a fourth rope (402).

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

7. A tuned mass damping device for a large-span stadium according to claim 6, characterized in that, An annular sealing gasket (503) is fixedly arranged on the side of the shock absorber (501) facing the through hole (509). The shock absorber rod (502) is slidably connected to the annular sealing gasket (503). The piston (505) and the annular sealing gasket (503) enclose to form a storage cavity (504) for storing damping fluid.

8. A tuned mass damping device for a large-span stadium according to claim 7, characterized in that, A plunger (507) is fixedly arranged on one end of the shock absorber rod (502) near the piston (505). The outer wall of the plunger (507) slides against the wall of the shock absorber cylinder (501). The plunger (507) and the piston (505) enclose a damping cavity (506). Several sets of damping channels (508) are opened in a circumferential array on the plunger (507). The two ends of the damping channel (508) are connected to the storage cavity (504) and the damping cavity (506) respectively. As the channel extends from the storage cavity (504) to the damping cavity (506), the inner diameter of the damping channel (508) gradually decreases.

9. A method for operating the tuned mass damping device for a large-span stadium as described in any one of claims 1-8, characterized in that, Includes the following steps: The damping device was fixed to the double-layered hollow truss steel structure of the stadium using several sets of bolts. When the venue experiences lateral vibration, the damping box (1) vibrates synchronously with the steel structure, and the counterweight module (2) moves relative to 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 opposite direction to the vibration direction of the damping box (1) through the first gear (309) and the second gear (304). The second rack (308) synchronously drives the limiting frame (3) to move. The limiting 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 experiences vertical vibration, the damping box (1) drives the counterweight frame to vibrate synchronously with the steel structure. The counterweight mass block (4) and the counterweight frame move relative to each other. The counterweight mass block (4) dissipates the kinetic energy of the damping box (1) and the counterweight frame during vibration through the second viscous damper.

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