Open type modularized tuned mass damping system

Abstract

The utility model relates to a vibration reduction technology in the field of vibration control of building structures, in particular to an open type modularized tuned mass damping system. The device comprises an embedded part, a frame, a mass block, a supporting beam, an adjusting spring, a damper, a lug plate, a friction plate, a pin shaft and a nut, the frame provided with the mass block serves as a mass module, the supporting beam and the adjusting spring jointly form a rigidity module, and a friction pair composed of the friction plate and the lug plate and the damper jointly form a damping module. When the floor slab generates vertical vibration due to external excitation, the nearby structural beams vibrate synchronously. The supporting beam provided with the mass module is connected to the structural beam through the friction damping pin shaft assembly. The structural beam vibrates to drive the mass module, and the supporting beam and the adjusting spring have the same vibration frequency and opposite directions. The damper between the mass module and the floor is enlarged in deformation due to reverse vibration, energy consumption is enhanced, and therefore vibration of the floor is relieved.

Description

Technical Field

[0001] This utility model relates to vibration reduction technology in the field of building structure vibration control, and in particular to an open modular tuned mass damping system. Background Technology

[0002] With the continuous development of building technology, modern buildings are becoming lighter, more flexible, and have larger spans, which gradually reduces the vertical natural frequency of the floor slab. In daily use, such as walking, exercising, and mechanical vibrations, the floor slab is prone to significant vibration comfort issues, adversely affecting the normal activities and work of people inside the building.

[0003] To effectively control floor vibration response and improve structural comfort, a common solution is to place tuned mass dampers (TMDs) at locations of significant floor vibration. A TMD typically consists of a mass block, an elastic element, and a damping element. When the floor vibrates, the interaction between the TMD and the floor allows the elastic element to transfer the floor's vibrational energy to the mass block. As the mass block moves, the damping element dissipates its kinetic energy, thus transferring energy from the main structure to the energy-dissipating device within the TMD. This reduces the vibration of the main structure and improves the building's vibration comfort.

[0004] Conventional tuned mass dampers (TMDs) are manufactured as complete products in the factory, transported to the project site, and finally installed in their designated locations by professionals. When the TMD is large, higher requirements are placed on its manufacturing, transportation, and installation. Furthermore, as a finely constructed and functionally complex product, the TMD is susceptible to damage of varying degrees from external factors such as collisions, bumps, and moisture during the entire process.

[0005] Based on the above problems, this utility model aims to break through the application bottlenecks of traditional TMDs and innovatively proposes an open modular tuned mass damping system. This system breaks away from the conventional monolithic product form of TMDs, disassembling it into multiple modules that are easy to transport and install. These modules can be quickly and efficiently assembled on-site according to precise installation procedures and process requirements, effectively avoiding many problems inherent in traditional methods and opening up a completely new technical path for the field of building structure vibration control. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art and provide an open modular tuned mass damping system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an open modular tuned mass damping system, comprising embedded parts, a frame, a mass block, a support beam, an adjusting spring, a damper, an ear plate, a friction plate, a pin, and a nut;

[0008] The embedded anchor plate and the frame are provided with a number of installation holes. The embedded part is embedded to the bottom surface of the floor slab. The frame is symmetrically provided with a number of cavities. The mass block is symmetrically installed in the cavity inside the frame. The upper end of the adjusting spring is connected to the installation hole on the embedded part, and the lower end is connected to the installation hole on the top surface of the frame. The upper end of the damper is connected to the installation hole on the embedded part, and the lower end is connected to the installation hole on the top or side surface of the frame.

[0009] The frame is fixedly connected to the midpoint of the length of at least two support beams. The support beams are provided with pin holes at both ends and are connected to the ear plates by pins. The ear plates are fixedly connected to the structural beams.

[0010] Preferably, the adjusting spring and damper are arranged symmetrically with respect to the frame.

[0011] Furthermore, a friction plate is provided between the ear plate and the support beam, and the friction plate is fixedly connected to the end of the support beam and cannot rotate relative to it.

[0012] Furthermore, the pin passes through the support beam, friction plate, and lug in sequence, and a nut is screwed into the tail of the pin for fastening.

[0013] Preferably, at least one set of open modular tuned mass damping systems can be arranged between two adjacent structural beams.

[0014] Preferably, the support beam is made of spring steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model adopts an open modular design, dividing the system into multiple modules, significantly improving installation convenience. Each module can be quickly assembled on-site, reducing transportation and installation difficulties and shortening the construction cycle. Maintenance during use is simple; only specific modules need maintenance, without the need for overall disassembly.

[0017] 2. With the help of the pre-reserved cavity and installation holes in the frame, the system can quickly and accurately adjust the mass block, adjust the spring and damper according to actual needs, and quickly adapt to the actual vibration characteristics of the floor. Compared with traditional systems, it is more flexible and adaptable.

[0018] 3. The vibration of the mass block drives the friction plate and the ear plate to rotate, generating frictional damping. The magnitude of the damping can be changed by adjusting the preload of the nut, thus optimizing the damping performance. It can effectively consume energy and improve the vibration control effect under different vibration environments. Attached Figure Description

[0019] Figure 1 This is a front view of the structure of this utility model.

[0020] Figure 2 for Figure 1 Sectional view along the AA direction.

[0021] Figure 3 for Figure 1 One arrangement of sectional views along the BB direction.

[0022] Figure 4 for Figure 1 Another arrangement of the sectional view along the BB direction.

[0023] In the diagram: 1. Embedded part; 2. Frame; 2-1. Cavity; 3. Mass block; 4. Support beam; 5. Adjusting spring; 6. Damper; 7. Ear plate; 8. Friction plate; 9. Pin; 10. Nut; 11. Floor slab; 12. Structural beam. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Example: Figures 1-3 As shown, an open modular tuned mass damping system includes embedded parts, a frame, a mass block, a support beam, an adjusting spring, a damper, a lug plate, a friction plate, a pin, and a nut.

[0026] The embedded anchor plate and frame are provided with several mounting holes. Accessories for connecting the adjusting spring and universal flange ball joint seat for connecting the end of the damper can be installed in the mounting holes. The embedded part is embedded to the bottom surface of the floor slab. The embedded part is installed upside down and located at the center position between two adjacent structural beams. Several cavities are symmetrically provided inside the frame. The mass block is symmetrically installed in the cavity inside the frame. The upper end of the adjusting spring is connected to the mounting hole on the embedded part, and the lower end is connected to the mounting hole on the top surface of the frame. The upper end of the damper is connected to the mounting hole on the embedded part, and the lower end is connected to the mounting hole on the top or side surface of the frame.

[0027] The frame is fixedly connected to the midpoint of the length of at least two support beams. The support beams are provided with pin holes at both ends and are connected to the ear plates by pins. The ear plates are fixedly connected to the structural beams.

[0028] The adjusting springs and dampers are arranged symmetrically relative to the frame so that the vertical vibration of the frame with the mass block is more stable.

[0029] A friction plate is provided between the ear plate and the support beam. The friction plate is fixedly connected to the end of the support beam and cannot rotate relative to it.

[0030] The pin passes through the support beam, friction plate and ear plate in sequence, and a nut is screwed into the tail of the pin to tighten it, so that a preload is generated between the friction plate and the ear plate, and then a friction damping force is generated when the two rotate relative to each other.

[0031] like Figure 4 As shown, at least one set of open modular tuned mass damping systems can be arranged between two adjacent structural beams.

[0032] The support beam is made of spring steel, which has better elasticity and flexibility than ordinary steel, allowing the support beam to remain in an elastic state when the mass block vibrates vertically.

[0033] The frame with installed mass blocks serves as the mass module, while the support beams and adjusting springs together constitute the stiffness module. The friction pairs consisting of friction plates and lugs, along with the dampers, together form the damping module. This makes the entire open modular tuned mass damping system an organic combination of multiple modules. These modules cooperate and coordinate with each other to effectively control and regulate floor vibration.

[0034] The working principle of this invention is as follows: When a floor slab is subjected to external excitation, resulting in uncomfortable vertical vibrations, the structural beams near the vibration point of the floor slab will vibrate synchronously. At this time, a support beam with a mass module installed serves as a stiffening element, connected to the structural beam via a pin assembly with friction damping. The vibration of the structural beam is transmitted through the support beam, causing the mass module to vibrate along with it. The arrangement of the support beam and the adjusting spring ensures that the vibration frequency of the mass module matches the vibration frequency of the structural beam (i.e., the floor slab), but in the opposite direction. A damper is installed between the mass module and the floor slab. Due to the opposite vibration of the mass module and the floor slab, the deformation of the damper is amplified, further enhancing its energy dissipation capacity. In this way, the vibration response of the floor slab can be effectively reduced. Furthermore, by utilizing the pre-reserved cavity in the frame and the mounting holes on the pre-embedded parts of the frame, the system can quickly and accurately adjust the parameters and quantity of the mass block, adjusting spring, and damper according to actual needs, thereby adapting to the actual vibration characteristics of the floor slab and better achieving the vibration reduction effect.

[0035] The above content is a further detailed description of the technical solution provided in conjunction with the preferred embodiments of this patent. It should not be considered that the specific implementation of this utility model is limited to the above description. For those skilled in the art to which this patent pertains, several simple deductions or substitutions can be made without departing from the concept of this patent, and all of these should be considered to fall within the protection scope of this patent.

Claims

1. An open modular tuned mass damping system, characterized in that: It includes embedded parts, frame, mass block, support beam, adjusting spring, damper, ear plate, friction plate, pin and nut, and the embedded parts anchor plate and frame are provided with a number of mounting holes; The embedded part is embedded to the bottom surface of the floor slab. The frame is symmetrically provided with several cavities. The mass block is symmetrically installed in the cavity inside the frame. The upper end of the adjusting spring is connected to the mounting hole on the embedded part, and the lower end is connected to the mounting hole on the top surface of the frame. The upper end of the damper is connected to the mounting hole on the embedded part, and the lower end is connected to the mounting hole on the top or side surface of the frame. The frame is fixedly connected to the midpoint of the length of at least two support beams. The support beams are provided with pin holes at both ends and are connected to the ear plates by pins. The ear plates are fixedly connected to the structural beams.

2. The open modular tuned mass damping system according to claim 1, characterized in that: The adjusting spring and damper are arranged symmetrically with respect to the frame.

3. The open modular tuned mass damping system according to claim 1, characterized in that: A friction plate is provided between the ear plate and the support beam. The friction plate is fixedly connected to the end of the support beam and cannot rotate relative to it.

4. The open modular tuned mass damping system according to claim 1, characterized in that: The pin passes through the support beam, friction plate and lug in sequence, and is tightened with a nut at the end of the pin.

5. The open modular tuned mass damping system according to claim 1, characterized in that: At least one set of open modular tuned mass damping systems can be arranged between two adjacent structural beams.

6. The open modular tuned mass damping system according to claim 1, characterized in that: The support beam is made of spring steel.

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