Floor vibration damping device and construction method thereof

Abstract

The application provides a floor damping device, which comprises two groups of steel beams, a bearing table, a tuned mass damper and two suspension mechanisms. The two groups of steel beams are installed on the floor and are arranged at intervals. The bearing table is arranged between the two groups of steel beams. The tuned mass damper is installed on the bearing table. The suspension mechanisms are installed between the two groups of steel beams and the bearing table. The suspension mechanism comprises a first suspension seat, a suspension joint and a second suspension seat. The application also provides a construction method of the floor damping device, which comprises the following steps: drilling holes on the floor; installing the two groups of steel beams on the holes; installing the suspension mechanisms on the two groups of steel beams; clamping the bearing table between the two suspension mechanisms; welding the tuned mass damper to the surface of the bearing table; and covering the holes by using prefabricated plates. The floor damping device provided by the application can ensure that the vibration is stably transmitted between the steel beams and the bearing table, and has a good damping effect.

Description

Technical Field

[0001] This application relates to the field of building vibration damping equipment technology, and in particular to a floor slab vibration damping device and its construction method. Background Technology

[0002] In daily use, floor slabs inevitably experience impacts, especially in sports fields such as courts. These impacts can affect users on lower floors, thus requiring vibration damping. Tuned mass dampers (also known as tuned mass shock absorbers) are typically used for floor damping, installed on the steel sections of the floor slab. A tuned mass damper consists of three parts: a mass block, a spring, and a damper. When the floor slab vibrates under external excitation, the mass block is affected and displaced accordingly. Due to the elastic connection between the mass block and the floor slab, the mass block interacts with the floor slab, effectively reducing the vibration amplitude of the main structure. However, as the tuned mass damper is used over time, it inevitably loosens, preventing the effective transmission of vibration between the damper and the floor slab, resulting in a decrease in damping performance. Summary of the Invention

[0003] The purpose of this application is to provide a floor slab damping device and its construction method to solve the technical problem in the prior art where loose tuned mass dampers lead to poor damping effect.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a floor slab vibration damping device, comprising:

[0005] Both sets of steel beams are installed on the floor slab and are spaced apart;

[0006] A support platform is provided between the two sets of steel beams;

[0007] A tuned mass damper is installed on the support platform;

[0008] A suspension mechanism is installed between both sets of steel beams and the support platform;

[0009] The suspension mechanism includes a first suspension seat, a suspension section, and a second suspension seat. The first suspension seat is mounted on the support platform, the suspension section is mounted on the first suspension seat and is rotatable relative to the first suspension seat in a first direction, and the second suspension seat is mounted between the suspension section and the steel beam and is rotatable relative to the suspension section in a second direction.

[0010] The first direction and the second direction are perpendicular to each other.

[0011] Optionally, the first suspension seat includes a first seat body and a plurality of first hinge plates, all of which are connected to the first seat body and are arranged at intervals along a first direction;

[0012] The suspension section includes an intermediate plate and a plurality of first rotating plates, all of which are connected to the intermediate plate and are arranged in an alternating layered manner with the plurality of first hinge plates.

[0013] The suspension mechanism further includes a first rotating shaft, which passes through a plurality of first hinge plates and a plurality of first rotating plates.

[0014] Optionally, the second suspension seat includes a second seat body and a plurality of second hinge plates, all of which are connected to the second seat body and are arranged at intervals along the second direction;

[0015] The suspension section includes an intermediate plate and multiple second rotating plates. The multiple second rotating plates are all connected to the side of the intermediate plate facing away from the first rotating plate, and are arranged in an alternating layer with the multiple second hinge plates.

[0016] The suspension mechanism further includes a second pivot shaft, which passes through a plurality of second hinge plates and a plurality of second rotating plates.

[0017] Optionally, the first hinge plate has a plurality of first arc-shaped grooves on the side facing the first rotating plate;

[0018] The first rotating plate has a plurality of first arc-shaped blocks on the side facing the first hinge plate. The plurality of first arc-shaped blocks are rotatably engaged in the plurality of first arc-shaped grooves and are arranged in a one-to-one correspondence with the plurality of first arc-shaped grooves.

[0019] Optionally, the second hinge plate has a plurality of second arc-shaped grooves on the side facing the second rotating plate;

[0020] The second rotating plate has a plurality of second arc-shaped blocks on the side facing the second hinge plate. The plurality of second arc-shaped blocks are rotatably engaged in the plurality of second arc-shaped grooves and are arranged in a one-to-one correspondence with the plurality of second arc-shaped grooves.

[0021] Optionally, the second suspension seat includes a fixed seat, a movable space, an inclined surface, multiple through holes, a second seat body, multiple connecting rods, and an inclined plate. The fixed seat is installed on the steel beam. The movable space is opened inside the fixed seat and passes through the fixed seat. The inclined surface is opened on the fixed seat and located within the movable space. Multiple through holes are opened on the fixed seat. The second seat body is installed on the suspension section. Multiple connecting rods are connected to the second seat body and pass through multiple through holes, and are arranged in a one-to-one correspondence with multiple through holes. The inclined plate is connected to the end of multiple connecting rods away from the second seat body and is located within the movable space.

[0022] Optionally, the first suspension seat includes a first seat body, a first guide surface, and a wedge-shaped groove, wherein the first guide surface is formed in the first seat body, and the wedge-shaped groove is formed in the first seat body and located at the first guide surface;

[0023] The support platform includes a platform body, two second guide surfaces and two wedge blocks. The two second guide surfaces are formed on the platform body and fit against the two first guide surfaces, and are arranged in a one-to-one correspondence with the two first guide surfaces. The two wedge blocks are formed on the platform body and are engaged in the two wedge grooves, and are located on the second guide surfaces.

[0024] Optionally, the floor slab damping device further includes a fixing mechanism, which is installed between the two first suspension seats.

[0025] Optionally, the fixing mechanism includes a fixing plate, a fixing frame, a plurality of screws and a plurality of nuts. The fixing plate is installed on one of the first suspension seats, the fixing frame is installed on the other first suspension seat, the plurality of screws are all connected to the fixing plate and pass through the fixing frame, and the plurality of nuts are sleeved on the plurality of screws and screwed to the plurality of screws, and are located on the side of the fixing frame opposite to the fixing plate.

[0026] This application also provides a construction method for a floor slab damping device, which includes at least the following steps:

[0027] Drill holes in the floor slab;

[0028] Install the two sets of steel beams to the opening;

[0029] The suspension mechanism is installed on the two sets of steel beams;

[0030] Connect the support platform between the two suspension mechanisms;

[0031] The tuned mass damper is welded to the surface of the support platform;

[0032] Use precast panels to cover the openings.

[0033] The beneficial effects of the floor slab damping device provided in this application are as follows:

[0034] This application provides a floor slab vibration damping device that, under the action of two suspension mechanisms, suspends a tuned mass damper between two sets of steel beams via a support platform. Under the gravity of the support platform and the tuned mass damper, the two suspension mechanisms remain taut, ensuring stable vibration transmission between the steel beams and the support platform. Furthermore, under the action of the suspension joint, the first and second suspension seats can rotate relative to each other in two different directions, ensuring the support platform is always stably engaged between the two first suspension seats, preventing loosening and again guaranteeing stable vibration transmission between the steel beams and the support platform. This device offers good vibration damping performance and has a wide range of applications. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A three-dimensional view of the overall structure of a floor slab vibration damping device provided in this application;

[0037] Figure 2 A perspective view of the support platform, tuned mass damper, first suspension seat and fixing mechanism of a floor slab damping device provided in this application;

[0038] Figure 3 A perspective view of the suspension joint, first rotating shaft, and second rotating shaft of a floor slab damping device provided in this application;

[0039] Figure 4 A perspective view of the second suspension seat of a floor slab damping device provided in this application;

[0040] Figure 5 A cross-sectional view of the second suspension seat and the second rotating shaft of a floor slab damping device provided in this application;

[0041] Figure 6 A perspective view of the support platform and tuned mass damper of a floor slab damping device provided in this application;

[0042] Figure 7 A cross-sectional view of the first suspension seat and suspension section of a floor slab damping device provided in this application.

[0043] The following are the labeling elements in the figure:

[0044] 1. Steel beams;

[0045] 2. Support platform; 21. Platform body; 22. Second guide surface; 23. Wedge block;

[0046] 3. Tuned mass damper;

[0047] 4. Suspension mechanism; 41. First suspension seat; 411. First seat body; 412. First hinge plate; 413. First arc-shaped groove; 414. First guide surface; 415. Wedge-shaped groove; 42. Suspension joint; 421. Intermediate plate; 422. First rotating plate; 423. Second rotating plate; 424. First arc-shaped block; 425. Second arc-shaped block; 43. Second suspension seat; 431. Second seat body; 432. Second hinge plate; 433. Second arc-shaped groove; 434. Fixed seat; 435. Movable space; 436. Inclined surface; 437. Through hole; 438. Connecting rod; 439. Inclined plate; 44. First rotating shaft; 45. Second rotating shaft;

[0048] 5. Fixing mechanism; 51. Fixing plate; 52. Fixing frame; 53. Screw; 54. Nut. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] like Figures 1 to 7 As shown, this application provides a floor slab vibration damping device, including two sets of steel beams 1, a support platform 2, a tuned mass damper 3, and two suspension mechanisms 4. Both sets of steel beams 1 are installed on the floor slab and are spaced apart. The support platform 2 is located between the two sets of steel beams 1. The tuned mass damper 3 is installed on the support platform 2. Suspension mechanisms 4 are installed between both sets of steel beams 1 and the support platform 2. Each suspension mechanism 4 includes a first suspension seat 41, a suspension section 42, and a second suspension seat 43. The first suspension seat 41 is installed on the support platform 2, and the suspension section 42 is installed on the first suspension seat 41 and is capable of rotating relative to the first suspension seat 41 about a first direction. The second suspension seat 43 is installed between the suspension section 42 and the steel beam 1 and is capable of rotating relative to the suspension section 42 about a second direction. The first and second directions are perpendicular to each other.

[0054] It should be noted that the first direction above and below refers to the bidirectional direction along its axis, specifically as follows: Figure 1 The X-axis is shown in the diagram. The second direction, above and below, refers to the bidirectional direction along its axis, specifically as shown in the diagram. Figure 1 The Y-axis is shown in the figure.

[0055] This application provides a floor slab vibration damping device. Under the action of two suspension mechanisms 4, a tuned mass damper 3 can be suspended between two sets of steel beams 1 via a support platform 2. Under the gravity of the support platform 2 and the tuned mass damper 3, the two suspension mechanisms 4 are always kept taut, ensuring that vibrations are stably transmitted between the steel beams 1 and the support platform 2. Furthermore, under the action of the suspension joint 42, the first suspension seat 41 and the second suspension seat 43 can rotate relative to each other in two different directions, ensuring that the support platform 2 is always stably engaged between the two first suspension seats 41, preventing loosening. This also ensures that vibrations are stably transmitted between the steel beams 1 and the support platform 2, resulting in good vibration damping effect.

[0056] In one embodiment of this application, please refer to Figures 1 to 7The first suspension seat 41 includes a first seat body 411 and a plurality of first hinge plates 412, all of which are connected to the first seat body 411 and are arranged at intervals along a first direction. The suspension section 42 includes a middle plate 421 and a plurality of first rotating plates 422, all of which are connected to the middle plate 421 and are arranged in an alternating layer with the plurality of first hinge plates 412. The suspension mechanism 4 also includes a first rotating shaft 44, which passes through the plurality of first hinge plates 412 and the plurality of first rotating plates 422.

[0057] With this configuration, the multiple first hinge plates 412 and multiple first rotating plates 422 can be hinged together via the first rotating shaft 44, thereby allowing the first suspension seat 41 and the suspension joint 42 to rotate relative to each other around the first direction. Furthermore, the multiple first hinge plates 412 and multiple first rotating plates 422 are arranged in an alternating, layered manner. Compared to having only one first hinge plate 412 and one first rotating plate 422, the multiple first hinge plates 412 and multiple first rotating plates 422 can mutually limit each other, making them less prone to loosening. This allows vibrations to be stably transmitted between the first hinge plates 412 and the first rotating plates 422.

[0058] In one embodiment of this application, please refer to the following: Figures 1 to 7 The second suspension seat 43 includes a second seat body 431 and a plurality of second hinge plates 432, all of which are connected to the second seat body 431 and are arranged at intervals along a second direction. The suspension section 42 includes a middle plate 421 and a plurality of second rotating plates 423, all of which are connected to the side of the middle plate 421 facing away from the first rotating plate 422 and are arranged in an alternating layer with the plurality of second hinge plates 432. The suspension mechanism 4 also includes a second rotating shaft 45, which passes through the plurality of second hinge plates 432 and the plurality of second rotating plates 423.

[0059] With this configuration, multiple second hinge plates 432 and multiple second rotating plates 423 can be hinged together via a second rotating shaft 45, allowing the second suspension seat 43 and suspension joint 42 to rotate relative to each other around a second direction. Furthermore, the multiple second hinge plates 432 and multiple second rotating plates 423 are arranged in an alternating, layered manner. Compared to having only one second hinge plate 432 and one second rotating plate 423, the multiple second hinge plates 432 and multiple second rotating plates 423 can mutually limit each other, making them less prone to loosening. This allows vibrations to be stably transmitted between the second hinge plates 432 and the second rotating plates 423.

[0060] In one embodiment of this application, see [reference] Figures 1 to 7The first hinge plate 412 has a plurality of first arc-shaped grooves 413 on the side facing the first rotating plate 422. The first rotating plate 422 has a plurality of first arc-shaped blocks 424 on the side facing the first hinge plate 412. The plurality of first arc-shaped blocks 424 are rotatably engaged in the plurality of first arc-shaped grooves 413 and are arranged in a one-to-one correspondence with the plurality of first arc-shaped grooves 413.

[0061] This configuration, with the action of multiple first arc-shaped grooves 413 and multiple first arc-shaped blocks 424, can guide the rotation of the first hinge plate 412 and the first rotating plate 422, helping to improve the rotational stability of the first hinge plate 412 and the first rotating plate 422 in the first direction, and also helping to improve the structural stability between the first hinge plate 412 and the first rotating plate 422. In addition, the action of the first arc-shaped grooves 413 can limit the positioning of the first arc-shaped blocks 424, which can prevent the first hinge plate 412 and the first rotating plate 422 from falling off due to excessive rotation angle.

[0062] In one embodiment of this application, please refer to Figures 1 to 7 The second hinge plate 432 has a plurality of second arc-shaped grooves 433 on the side facing the second rotating plate 423. The second rotating plate 423 has a plurality of second arc-shaped blocks 425 on the side facing the second hinge plate 432. The plurality of second arc-shaped blocks 425 are rotatably engaged in the plurality of second arc-shaped grooves 433 and are arranged in a one-to-one correspondence with the plurality of second arc-shaped grooves 433.

[0063] This configuration, with the action of multiple second arc-shaped grooves 433 and multiple second arc-shaped blocks 425, can guide the rotation of the second hinge plate 432 and the second rotating plate 423, helping to improve the rotational stability of the second hinge plate 432 and the second rotating plate 423 in the second direction, and also helping to improve the structural stability between the second hinge plate 432 and the second rotating plate 423. In addition, the action of the second arc-shaped grooves 433 can limit the movement of the second arc-shaped blocks 425, preventing the risk of the support platform 2 and the tuned mass damper 3 falling due to excessive rotation angle of the second hinge plate 432 and the second rotating plate 423.

[0064] In one embodiment of this application, please refer to the following: Figures 1 to 7The second suspension seat 43 includes a fixed seat 434, a movable space 435, an inclined surface 436, multiple through holes 437, a second seat body 431, multiple connecting rods 438, and an inclined plate 439. The fixed seat 434 is installed on the steel beam 1. The movable space 435 is opened in the fixed seat 434 and passes through the fixed seat 434. The inclined surface 436 is opened in the fixed seat 434 and is located in the movable space 435. Multiple through holes 437 are all opened in the fixed seat 434. The second seat body 431 is installed on the suspension section 42. Multiple connecting rods 438 are all connected to the second seat body 431 and pass through the multiple through holes 437, and are arranged one-to-one with the multiple through holes 437. The inclined plate 439 is connected to the end of the multiple connecting rods 438 away from the second seat body 431 and is located in the movable space 435.

[0065] With this configuration, under the action of the inclined plane 436 and the inclined plate 439, the inclined plate 439 can slide relative to the fixed seat 434. Through multiple connecting rods 438, the second seat 431 can move relative to the fixed seat 434. Under the gravity of the support platform 2 and the tuned mass damper 3, the inclined plate 439 can always be in contact with the inclined plane 436 of the fixed seat 434, and the distance between the second seat 431 and the fixed seat 434 can be adjusted. When the first suspension seat 41 and the second suspension seat 43 rotate relative to each other, the distance between the two suspension mechanisms 4 will change slightly. By adjusting the distance between the second seat 431 and the fixed seat 434, the two suspension mechanisms 4 can be prevented from jamming due to the support platform 2. When the inclined plate 439 slides relative to the fixed seat 434, multiple through holes 437 can be used to avoid interfering with the movement of the connecting rods 438, preventing the inclined plate 439 from becoming unable to slide.

[0066] In one embodiment of this application, see [reference] Figures 1 to 7 The first suspension seat 41 includes a first seat body 411, a first guide surface 414, and a wedge-shaped groove 415. The first guide surface 414 is formed in the first seat body 411, and the wedge-shaped groove 415 is formed in the first seat body 411 and located at the first guide surface 414. The support platform 2 includes a platform body 21, two second guide surfaces 22, and two wedge-shaped blocks 23. The two second guide surfaces 22 are both formed in the platform body 21 and fit against the two first guide surfaces 414, and are arranged in a one-to-one correspondence with the two first guide surfaces 414. The two wedge-shaped blocks 23 are both formed in the platform body 21 and are engaged in the two wedge-shaped grooves 415 and located at the second guide surfaces 22.

[0067] This configuration allows the platform 21 and the first seat 411 to engage under the action of the wedge groove 415 and the wedge block 23, which helps improve the structural stability between the platform 21 and the first seat 411. The two wedge blocks 23 can simultaneously engage with both first seat 411s, further enhancing the structural stability between them. The first guide surface 414 and the second guide surface 22 allow for better contact between the platform 21 and the first seat 411, facilitating vibration transmission. Furthermore, it facilitates relative sliding between the platform 21 and the first seat 411 during assembly.

[0068] In one embodiment of this application, please refer to Figures 1 to 7 A floor slab damping device also includes a fixing mechanism 5, which is installed between two first suspension seats 41.

[0069] With this configuration, the two first suspension seats 41 can be fixed by the fixing mechanism 5, which helps to improve the structural stability between the two first suspension seats 41.

[0070] In one embodiment of this application, please refer to the following: Figures 1 to 7 The fixing mechanism 5 includes a fixing plate 51, a fixing frame 52, multiple screws 53 and multiple nuts 54. The fixing plate 51 is installed on one of the first suspension seats 41, the fixing frame 52 is installed on the other first suspension seat 41, the multiple screws 53 are all connected to the fixing plate 51 and pass through the fixing frame 52, the multiple nuts 54 are sleeved on the multiple screws 53 and screwed to the multiple screws 53, and are located on the side of the fixing frame 52 facing away from the fixing plate 51.

[0071] With this configuration, the distance between the fixing plate 51 and the fixing frame 52 can be adjusted by adjusting the position of the nut 54 on the screw 53, thus enabling it to be used to fix two first seats 411 at different distances, making it widely applicable.

[0072] like Figures 1 to 7 As shown, this application also provides a construction method for a floor slab damping device, which includes at least the following steps:

[0073] Step S1: Drill holes in the floor slab.

[0074] Step S2: Install the two sets of steel beams 1 to the opening.

[0075] Step S3: Install the suspension mechanism 4 on the two sets of steel beams 1.

[0076] Step S4: Connect the support platform 2 between the two suspension mechanisms 4.

[0077] Step S5: Weld the tuned mass damper 3 to the surface of the support platform 2.

[0078] Step S6: Cover the opening with a prefabricated panel.

[0079] The present application provides a construction method for a floor slab vibration damping device, which can stably install two suspension mechanisms 4, a bearing platform 2 and a tuned mass damper 3 between two sets of steel beams 1, and can ensure that vibration is stably transmitted between the tuned mass damper 3 and the steel beams 1, resulting in good vibration damping effect.

[0080] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A floor slab vibration damping device, characterized in that, include: Both sets of steel beams are installed on the floor slab and are spaced apart; A support platform is provided between the two sets of steel beams; A tuned mass damper is installed on the support platform; A suspension mechanism is installed between both sets of steel beams and the support platform; The suspension mechanism includes a first suspension seat, a suspension section, and a second suspension seat. The first suspension seat is mounted on the support platform, the suspension section is mounted on the first suspension seat and is rotatable relative to the first suspension seat in a first direction, and the second suspension seat is mounted between the suspension section and the steel beam and is rotatable relative to the suspension section in a second direction. The first direction and the second direction are perpendicular to each other.

2. The floor slab vibration damping device as described in claim 1, characterized in that, The first suspension seat includes a first seat body and a plurality of first hinge plates, all of which are connected to the first seat body and are arranged at intervals along a first direction; The suspension section includes an intermediate plate and a plurality of first rotating plates, all of which are connected to the intermediate plate and are arranged in an alternating layered manner with the plurality of first hinge plates. The suspension mechanism further includes a first rotating shaft, which passes through a plurality of first hinge plates and a plurality of first rotating plates.

3. A floor slab vibration damping device as described in claim 2, characterized in that, The second suspension seat includes a second seat body and a plurality of second hinge plates, all of which are connected to the second seat body and are arranged at intervals along a second direction; The suspension section includes an intermediate plate and multiple second rotating plates. The multiple second rotating plates are all connected to the side of the intermediate plate facing away from the first rotating plate, and are arranged in an alternating layer with the multiple second hinge plates. The suspension mechanism further includes a second pivot shaft, which passes through a plurality of second hinge plates and a plurality of second rotating plates.

4. A floor slab vibration damping device as described in claim 2, characterized in that, The first hinge plate has multiple first arc-shaped grooves on the side facing the first rotating plate; The first rotating plate has a plurality of first arc-shaped blocks on the side facing the first hinge plate. The plurality of first arc-shaped blocks are rotatably engaged in the plurality of first arc-shaped grooves and are arranged in a one-to-one correspondence with the plurality of first arc-shaped grooves.

5. A floor slab vibration damping device as described in claim 3, characterized in that, The second hinge plate has multiple second arc-shaped grooves on the side facing the second rotating plate; The second rotating plate has a plurality of second arc-shaped blocks on the side facing the second hinge plate. The plurality of second arc-shaped blocks are rotatably engaged in the plurality of second arc-shaped grooves and are arranged in a one-to-one correspondence with the plurality of second arc-shaped grooves.

6. A floor slab vibration damping device as described in claim 1, characterized in that, The second suspension seat includes a fixed seat, a movable space, an inclined surface, multiple through holes, a second seat body, multiple connecting rods, and an inclined plate. The fixed seat is installed on the steel beam. The movable space is opened inside the fixed seat and passes through it. The inclined surface is opened on the fixed seat and located within the movable space. All the multiple through holes are opened on the fixed seat. The second seat body is installed on the suspension section. All the multiple connecting rods are connected to the second seat body and pass through the multiple through holes, and are arranged in a one-to-one correspondence with the multiple through holes. The inclined plate is connected to the end of the multiple connecting rods away from the second seat body and is located within the movable space.

7. A floor slab vibration damping device as described in claim 1, characterized in that, The first suspension seat includes a first seat body, a first guide surface, and a wedge-shaped groove. The first guide surface is formed in the first seat body, and the wedge-shaped groove is formed in the first seat body and located at the first guide surface. The support platform includes a platform body, two second guide surfaces and two wedge blocks. The two second guide surfaces are formed on the platform body and fit against the two first guide surfaces, and are arranged in a one-to-one correspondence with the two first guide surfaces. The two wedge blocks are formed on the platform body and are engaged in the two wedge grooves, and are located on the second guide surfaces.

8. A floor slab vibration damping device as described in claim 1, characterized in that, The floor slab damping device further includes a fixing mechanism, which is installed between the two first suspension seats.

9. A floor slab vibration damping device as described in claim 8, characterized in that, The fixing mechanism includes a fixing plate, a fixing frame, multiple screws and multiple nuts. The fixing plate is installed on one of the first suspension seats, the fixing frame is installed on the other first suspension seat, the multiple screws are all connected to the fixing plate and pass through the fixing frame, and the multiple nuts are sleeved on the multiple screws and screwed to the multiple screws, and are located on the side of the fixing frame opposite to the fixing plate.

10. The construction method of a floor slab vibration damping device as described in claim 1, characterized in that, At least the following steps are included: Drill holes in the floor slab; Install the two sets of steel beams to the opening; The suspension mechanism is installed on the two sets of steel beams; Connect the support platform between the two suspension mechanisms; The tuned mass damper is welded to the surface of the support platform; Use precast panels to cover the openings.

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