Tuned mass damper and building structure equipped with the same

Abstract

Tuned viscous mass damper and building structure provided with the damper, relate to building shock absorption technical field, the tuned viscous mass damper of the present application includes the flywheel of the rod-shaped component and the sleeve setting on the rod-shaped component, the motion conversion mechanism that is equipped with the cooperation between the rod-shaped component and flywheel, the motion conversion mechanism is configured as in the process of the reciprocating motion of the rod-shaped component along the axial drive flywheel to the same direction rotation.The present application can improve the reliability of tuned viscous mass damper and reduce its use cost.

Description

Technical Field

[0001] This invention relates to the field of building vibration reduction technology, and in particular to a tuned viscous mass damper and a building structure equipped with the damper. Background Technology

[0002] Tuned viscous mass dampers (TVMDs) are widely used in engineering vibration control due to their significant advantages in vibration control.

[0003] TVMDs typically consist of inertial elements, springs, and energy dissipation elements (EDEs). Currently, common TVMD dampers used in engineering practice include... Figure 1 As shown, the traditional TVMD dissipates vibration energy by displacing a flywheel in the forward-backward direction (axis of the screw) through a ball screw connected to the building structure. For example, when the screw moves forward, it drives the flywheel to rotate clockwise, and when the screw moves backward, it drives the flywheel to rotate counterclockwise. However, during an actual earthquake, the amplitude and frequency of the building structure's swaying are not fixed values. Therefore, the displacement conversion of the screw in the forward-backward direction during the vibration is uncertain, which in turn leads to uncertainty in the flywheel's direction of rotation. At the moment the flywheel's direction of rotation changes, a huge instantaneous torque is generated on the screw. Excessive instantaneous torque can easily cause "slippage" in the transmission structure between the flywheel and the screw, or even cause the screw to break, thus causing the TVMD to fail. Furthermore, the replacement cost after the screw is damaged is very high. Based on the above analysis, it can be seen that traditional TVMDs often cannot guarantee sufficiently reliable continuous operation in the face of sudden earthquakes and have the drawback of high operating costs. Summary of the Invention

[0004] One of the objectives of this invention is to provide a novel tuned viscous mass damper to improve the reliability of TVMD and reduce its operating costs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a tuned viscous mass damper, comprising a rod-shaped component and a flywheel sleeved on the rod-shaped component, wherein a matching motion conversion mechanism is provided between the rod-shaped component and the flywheel, and the motion conversion mechanism is configured to drive the flywheel to rotate in the same direction during the reciprocating motion of the rod-shaped component along the axial direction.

[0006] Preferably, the motion conversion mechanism comprises a motion constraint structure and a force transmission component disposed between the rod-shaped component and the flywheel, the motion constraint structure comprises a first constraint structure and a second constraint structure, the first constraint structure is configured to constrain the force transmission component in a first helical path and cause relative motion therebetween during forward axial movement of the rod-shaped component, the second constraint structure is configured to constrain the force transmission component in a second helical path and cause relative motion therebetween during backward axial movement of the rod-shaped component, the first helical path and the second helical path are opposite in hand of rotation, during reciprocating axial movement of the rod-shaped component, the force transmission component is alternately constrained by the first constraint structure and the second constraint structure and relative motion along the first helical path and the second helical path is alternately generated therebetween, so that the direction of the force driving the flywheel to rotate remains unchanged.

[0007] More preferably, the first constraint structure comprises a first limiting guide structure configured to form the first helical path, the second constraint structure comprises a second limiting guide structure configured to form the second helical path, the force transmission component is capable of abutting against the first limiting guide structure or the second limiting guide structure, the first limiting guide structure intersects with the second limiting guide structure and is disconnected at the intersection thereof to form a gap, the size of the gap is limited so that during the rod-shaped component changes the direction of movement, the force transmission component can correspondingly enter the second helical path from the first helical path or enter the first helical path from the second helical path via the gap.

[0008] More preferably, the first constraint structure comprises a plurality of groups of first limiting guide structures arranged in parallel and spaced apart, and each first limiting guide structure is configured to form a first helical path parallel to each other, the second constraint structure comprises a plurality of groups of second limiting guide structures arranged in parallel and spaced apart, and each second limiting guide structure is configured to form a second helical path parallel to each other, the intersection of any group of first limiting guide structures and second limiting guide structures is disconnected and forms a gap.

[0009] More preferably, the force transmission component has a plurality of groups and the number thereof is the same as the number of the first limiting guide structures or the second limiting guide structures.

[0010] More preferably, the first limiting guide structure comprises a first guide surface extending along the first helical path, the second limiting guide structure comprises a second guide surface extending along the second helical path, and the force transmission component is capable of abutting against the first guide surface or the second guide surface.

[0011] More preferably, the first limiting guide structure is a first protrusion arranged along a first spiral path, the second limiting guide structure is a second protrusion arranged along a second spiral path, one side of the first protrusion is provided with a first guide surface extending along the first spiral path, one side of the second protrusion is provided with a second guide surface extending along the second spiral path, and the force transmission component is a pin column, the side circumferential surface of the pin column is capable of abutting against the first guide surface or the second guide surface.

[0012] More preferably, the movement constraint structure is arranged on the outer circumferential surface of the rod-shaped component, and the force transmission component is arranged on the inner circumferential surface of the flywheel.

[0013] In addition, the application also provides a building structure provided with the tuned mass damper.

[0014] When the rod-shaped component reciprocates along the axial direction, the flywheel is always driven to rotate in one direction by the movement conversion mechanism, which avoids the risk of "wire slipping" or the rod-shaped component being twisted and broken due to excessive torque caused by instantaneous reverse rotation, and when applied to a building structure, the tuned mass damper can be ensured to operate for a long time, the service life of the damper is improved, the building structure has reliable seismic resistance, and the cost of maintenance and replacement is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a sectional view of a conventional tuned mass damper;

[0016] Figure 2 is a perspective view of the overall structure in the embodiment of the application;

[0017] Figure 3 is a structural schematic diagram of the rod-shaped component in the embodiment;

[0018] Figure 4 is a structural schematic diagram of the flywheel in the embodiment;

[0019] Figure 5 is a structural schematic diagram of the flywheel in the embodiment when the flywheel is located at the middle position of the rod-shaped component.

[0020] In the drawings:

[0021] 1 - rod-shaped component 2 - flywheel 3 - first protrusion

[0022] 4 - second protrusion 5 - pin column 6 - ball joint

[0023] 7 - conventional screw rod 8 - conventional flywheel 9 - nut

[0024] 10 - friction material 11 - butterfly spring 12 - cross roller bearing

[0025] 13 – Inner tube; 14 – Sealing ring; 15 – Viscous material

[0026] 16 — Radial bearing. Implementation

[0027] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0028] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances. Furthermore, in this invention, unless otherwise explicitly specified and limited, "on" or "under" a second feature can include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them.

[0029] like Figures 2 to 4 As shown, the tuned viscous mass damper mainly includes a rod-shaped component 1 and a flywheel 2 sleeved on the rod-shaped component 1. A matching motion conversion mechanism is provided between the rod-shaped component 1 and the flywheel 2. The motion conversion mechanism is configured to drive the flywheel 2 to rotate in the same direction during the axial reciprocating motion of the rod-shaped component 1. It should be noted that the relative displacement between the rod-shaped component 1 and the flywheel 2 is still the displacement form in existing tuned viscous mass dampers. No matter how far the rod-shaped component 1 moves forward or backward, although the flywheel 2 is displaced relative to the rod-shaped component 1, the position of the flywheel 2 remains unchanged in the tuned viscous mass damper.

[0030] In the above structure, the motion conversion mechanism includes a motion constraint structure and a force transmission component disposed between the rod-shaped component 1 and the flywheel 2. The motion constraint structure includes a first constraint structure and a second constraint structure. The first constraint structure is configured to constrain the force transmission component via a first helical path during the forward axial movement of the rod-shaped component 1, causing relative motion between the two. The second constraint structure is configured to constrain the force transmission component via a second helical path during the backward axial movement of the rod-shaped component 1, causing relative motion between the two. The first helical path and the second helical path have opposite directions of rotation. During the reciprocating motion of the rod-shaped component 1 along the axial direction, the first constraint structure and the second constraint structure alternately constrain the force transmission component and alternately generate relative motion along the first helical path and the second helical path, so that the direction of the force driving the flywheel 2 to rotate remains unchanged.

[0031] And how is this movement achieved, specifically, the first constraint structure includes a first limiting guide structure configured to form a first spiral path, the second constraint structure includes a second limiting guide structure configured to form a second spiral path, the force transmission component can abut the first limiting guide structure or the second limiting guide structure, the first limiting guide structure intersects the second limiting guide structure and is disconnected at the intersection to form a gap, the size of the gap is limited to the process of changing the moving direction of the rod-shaped component 1, the force transmission component can enter the second spiral path from the first spiral path or enter the first spiral path from the second spiral path through the gap. Wherein, the first constraint structure includes a plurality of groups of first limiting guide structures arranged in parallel and spaced apart, and each first limiting guide structure is configured to form a first spiral path parallel to each other, the second constraint structure includes a plurality of groups of second limiting guide structures arranged in parallel and spaced apart, and each second limiting guide structure is configured to form a second spiral path parallel to each other, and the intersection of any one group of first limiting guide structures and second limiting guide structures is disconnected and has a gap.

[0032] Further, the force transmission component has multiple groups and the number is the same as the number of first limiting guide structures or second limiting guide structures. The first limiting guide structure includes a first guide surface extending along the first spiral path, the second limiting guide structure includes a second guide surface extending along the second spiral path, and the force transmission component can abut the first guide surface or the second guide surface. Then, when the rod-shaped component 1 and the flywheel 2 are relatively displaced, the force transmission component can move to any first guide surface in any first spiral path or can move to any second guide surface in any second spiral path. As long as the first guide surface or the second guide surface is contacted, the force transmission component can be pushed to rotate in the same direction as the movement of any guide surface when the rod-shaped component 1 moves in the axial direction.

[0033] For the stability and reliability of the structure, the first limiting guide structure is a first protrusion 3 arranged along the first spiral path, the second limiting guide structure is a second protrusion 4 arranged along the second spiral path, one side of the first protrusion 3 is provided with a first guide surface extending along the first spiral path, one side of the second protrusion 4 is provided with a second guide surface extending along the second spiral path, and the force transmission component is a pin 5. During the guiding of the flywheel 2, the side surface of the pin 5 can abut the first guide surface or the second guide surface. Further, the structure of the pin 5 can be optimized. In this embodiment, the movement constraint structure is arranged on the outer peripheral surface of the rod-shaped component 1, and the force transmission component is arranged on the inner peripheral surface of the flywheel 2. Here, the end surface of the pin 5 towards the center of the flywheel 2 can be set as an inclined surface, so as to facilitate better contact and cooperation between the outer peripheral surfaces of the rod-shaped component 1, and the movement can be relatively smoother.

[0034] Those skilled in the art will know that the overall damper structure also includes Figure 1 The other parts of the structure can be formed by existing structures such as the conventional lead screw 7 and conventional flywheel 8, nut 9, friction material 10, disc spring 11, crossed roller bearing 12, inner tube 13, sealing ring 14, viscous material 15, and radial bearing 16, which together form the overall tuned viscous mass damper structure. The two ends of the damper are connected to the building structure by ball joints 6. Since this application only modifies the conventional lead screw 7 and conventional flywheel 8, the connection relationships between other structures in the damper will not be described in detail. In practical applications, those skilled in the art only need to replace the conventional lead screw 7 and conventional flywheel 8 in the existing tuned viscous mass damper with the rod-shaped component 1 and flywheel 2 of this application.

[0035] The tuned viscous mass damper provided in the above embodiment can be installed in the damping structure connecting two opposite floor walls of a building, or in the damping structure of engineering structures such as bridges. When the building or bridge vibrates, the main structure sways back and forth, and the tuned viscous mass damper in the damping structure also sways back and forth. At this time, the rod-shaped component 1 in the tuned viscous mass damper will drive the flywheel 2 to rotate due to the back and forth movement, so as to convert the instantaneous displacement generated by the structural vibration into the rotation of the flywheel 2 through the translation of the rod-shaped component 1, and consume it through the rotation of the flywheel. That is, by converting the energy expression form, damping force is provided to achieve the damping effect, thereby enabling the building, bridge and other structures to quickly return to stability. So, during the back and forth movement of the rod-shaped component 1, the flywheel 2 in this embodiment can always maintain rotation in the same direction (counterclockwise direction as shown in the figure). Specifically, it is achieved as follows:

[0036] like Figure 2 As shown, assuming that in the initial natural state, all the pins 5 on the inner wall of the flywheel 2 fall on the first guide surface of the first protrusion 3 corresponding to the leftmost end of the rod-shaped component 1, then when the building structure vibrates, causing the tuned viscous mass damper to move back and forth due to the swaying, when the rod-shaped component 1 moves forward, the first guide surface of the first protrusion 3 will push against the corresponding pin 5, thereby causing the pin 5 to move along the first guide surface, that is, to begin moving along the first helical path. Then the flywheel 2 will be pushed towards... Figure 2 It has rotated counterclockwise as shown.

[0037] It should be noted that when the rod-shaped component 1 continues to move forward, the pin 5 will disengage from the first guide surface on the original first protrusion 3. However, due to inertia, the pin 5 will continue to move along the first spiral path and be "caught" by the next first protrusion 3 on that path, thus continuing to be pushed to rotate counterclockwise. When the rod-shaped component 1 stops moving, the flywheel 2 will also stop rotating. If the position of the flywheel 2 when it stops rotating makes the pin 5 exactly in the gap between the two first protrusions 3, then when the rod-shaped component 1 moves forward again, because the outer circumference of the rod-shaped component 1 is distributed with first protrusions 3, the pin 5 will still fall onto one of the first protrusions 3 in the other set. There is no need to worry about the pin 5 losing support during the movement of the rod-shaped component 1. Once supported by the first guide surface of the first protrusion 3, the pin 5 will inevitably continue to move along the first spiral path during the movement of the rod-shaped component 1, thus maintaining the counterclockwise rotation of the flywheel 2.

[0038] When the rod-shaped component 1 begins to move in the opposite direction, i.e., backward, the second protrusion 4 quickly contacts the pin 5, causing the second guide surface to support the pin 5 and push it along the second helical path. As the pin 5 moves along the second helical path, the flywheel 2 continues to rotate counterclockwise. It is evident that regardless of whether the rod-shaped component 1 moves forward or backward, it causes the flywheel 2 to rotate counterclockwise, i.e., in the same direction. This is due to the segmented constraint structure of the two helical paths distributed on the outer circumference of the rod-shaped component 1. While the protrusion spacing shown in the figure appears slightly large, in practical applications, the distance between each group of protrusions can be even closer, allowing the pin 5 to more easily and quickly contact the guide surface on the corresponding protrusion.

[0039] In this embodiment, a preferred structure is used to demonstrate the movement of the damper. Four force transmission components, namely four pins 5, are provided on the inner wall of the flywheel 2. At the same time, four sets of protrusions are provided on the outer wall of the rod-shaped component 1. Each set of protrusions includes two first protrusions 3 and two second protrusions 4 that are staggered with the two first protrusions 3. Here, a simulation under vibration is performed using a section of rod-shaped component 1. Within a certain length range on rod-shaped component 1, a set of protrusions is provided for each pin 5. When there are four pins 5 and they are evenly distributed in a ring, the four sets of protrusions are also evenly distributed in a ring on the outer circumference of the same length range of rod-shaped component 1, that is, a set of protrusions is distributed every 90 degrees. Each set of protrusions includes two first protrusions 3 and two second protrusions 4 that are staggered with the two first protrusions 3. Then, the distribution of the four sets of protrusions in the ring within the total length range of this section of rod-shaped component 1 is set as three columns. These three columns are evenly spaced along the length direction of rod-shaped component 1. In practical applications, the gap between each column can be set to be shorter than that shown in the figure.

[0040] Assuming that initially each pin 5 falls on the first guide surface of the corresponding first protrusion 3, and the flywheel 2 is engaged with... Figure 2 The rod-shaped component 1 shown in the diagram starts to vibrate on the four sets of protrusions in the foremost column. The vibration energy is transferred to the tuned viscous mass damper, causing the rod-shaped component 1 to move forward initially. Then, the first guide surface of each first protrusion 3 pushes the corresponding pin 5, causing the pin 5 to move along the corresponding first guide surface. This movement follows a first helical path, thus driving the flywheel 2 to rotate counterclockwise until the pin 5 moves to another first protrusion 3 in the same group of protrusions. At this point, the rod-shaped component 1 continues to move forward, and the first guide surface of the first protrusion 3 pushes the pin 5, causing the pin 5 to continue moving along the first helical path, eventually moving to the first protrusion 3 in the second column of protrusions (i.e., the group of protrusions in the middle of the rod-shaped component 1 in the diagram). Figure 5 As shown in the figure, the approximate trajectory of the pin 5 moving along the first spiral path is indicated by the dashed arrow. When the rod-shaped component 1 moves forward, the movement and path of the pin 5 are the same as before.

[0041] When the rod-shaped component 1 suddenly begins to retract, assuming that each pin 5 now rests on the first protrusion 3 of the corresponding group of protrusions in the middle row of the rod-shaped component 1, due to the instantaneous backward movement of the rod-shaped component 1, the position of the pin 5 will not change significantly in a short time when it loses support. Instead, as the rod-shaped component 1 moves backward, the second protrusion 4 in the same group of protrusions will shift to abut against the corresponding pin 5. This is equivalent to the pin 5 instantly falling onto the second guide surface. In other words, the pin 5 is instantly switched to the second spiral path. Therefore, when the rod-shaped component 1 continues to move backward, it becomes the second protrusion 4. The second guide surface pushes the pin 5 to move. Under the push of the second guide surface, the pin 5 will move along the second spiral path. The direction of movement of this path causes the pin 5 to still rotate in the counterclockwise direction. And like the movement principle of the first spiral path, the pin 5 moves from a set of protrusions in the middle row of the rod-shaped component 1 to a set of protrusions in the frontmost row of the rod-shaped component 1. Of course, those skilled in the art should know that the flywheel 2 has already rotated 90 degrees at this time. The pin 5 moves from a set of protrusions in the middle row to another set of protrusions in the frontmost row that is offset from the set of protrusions in the middle row. During this process, the flywheel 2 still maintains counterclockwise rotation.

[0042] As can be seen from the above embodiments, the force distribution of this invention differs from that of existing classic TVMDs. The most significant difference is that regardless of whether the rod-shaped component 1 is displaced in the forward or reverse direction, it only drives the flywheel 2 to rotate in one direction. This prevents abrupt changes in the direction of the flywheel 2 caused by the instantaneous switching between positive and negative displacements of the rod-shaped component 1. This avoids the problem of excessive instantaneous torque on the rod-shaped component 1 caused by sudden turning of the flywheel 2, improving the durability and service life of the rod-shaped component 1 and ensuring the reliability of the damper. Secondly, the motion constraint structure in the helical path of the rod-shaped component 1 is segmented, ensuring that the flywheel 2 maintains flexible rotational characteristics even under uncertain displacement values ​​and directions.

[0043] Those skilled in the art should understand that the examples in the above embodiments are only used to illustrate the action coordination relationship between the rod-shaped component 1 and the flywheel 2. Therefore, the structure is simplified for ease of understanding. However, in actual applications, the length of the rod-shaped component 1 is consistent with the length of the lead screw in existing tuned viscous mass dampers, and the size of the flywheel 2 is also the same. The only difference is that a matching motion conversion mechanism is provided on the outer surface of the rod-shaped component 1 and the inner surface of the flywheel 2. In fact, the surface of the rod-shaped component 1 can also be provided with multiple rows of protrusions, and each row can also be provided with more groups of protrusions. The number of protrusions in each group is not necessarily four, but can be more. In addition, the spacing between the protrusions in adjacent rows can also be adjusted to make them closer together. The most ideal setting can be obtained through adjustment to ensure that the movement of the flywheel 2 is smoother and more fluid. This embodiment only lists one form of protrusion distribution to illustrate the motion principle.

[0044] By modifying the conventional lead screw 7 and conventional flywheel 8 structure in traditional tuned viscous mass dampers to the structure described in this application, the tuned viscous mass damper can drive the flywheel 2 to always rotate in the same direction during application. This avoids the problem of excessive instantaneous torque on the rod-shaped component 1 when the flywheel 2 changes direction abruptly, greatly reducing the risk of damage to the rod-shaped component 1 and improving its durability. As those skilled in the art know, in practical applications, a set of tuned viscous mass dampers used in building or bridge engineering structures is very expensive. The total cost of a high-quality damper of this type, combined with a corresponding damping structure, can even reach [amount missing]. If a damper costs hundreds of thousands of dollars and is damaged in a single earthquake, it must be disassembled and replaced, resulting in significant losses. Disassembly and maintenance also present considerable challenges. Furthermore, major earthquakes often inevitably lead to aftershocks, some of which are of considerable magnitude. If the damper's lead screw is damaged during the initial strong earthquake due to repeated instantaneous steering of the flywheel, disrupting the overall damper structure, even if the building or bridge structure is spared damage from the strong earthquake, the damper will no longer be able to provide effective shock absorption when a larger aftershock strikes. This would pose a significant risk of damage to the building or bridge. However, when the tuned viscous mass damper designed in this application is adopted, the flywheel 2 will not cause damage to the rod-shaped component 1 due to the huge torque generated by the instantaneous change of steering. Therefore, the entire tuned viscous mass damper can continue to work stably for a long time. Even after the first strong earthquake, when encountering subsequent aftershocks of greater intensity, the tuned viscous mass damper can still provide shock absorption to prevent the building or bridge structure from being easily damaged. It can be seen that the application value of this tuned viscous mass damper is very high. Through the improvement of reliability, it can not only reduce the huge cost of replacing the damper after damage, but also effectively improve its value in strong earthquakes and aftershocks. This is a technical effect that existing tuned viscous mass dampers cannot achieve. It is a design that can bring about completely creative technical achievements.

[0045] To facilitate understanding by those skilled in the art of the improvements of this invention over the prior art, some of the accompanying drawings and descriptions have been simplified. The above embodiments are preferred implementations of this invention. In addition, this invention can be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this invention.

Claims

1. A tuned viscous mass damper, characterized in that: The device includes a rod-shaped component (1) and a flywheel (2) sleeved on the rod-shaped component (1). A matching motion conversion mechanism is provided between the rod-shaped component (1) and the flywheel (2). The motion conversion mechanism is configured to drive the flywheel (2) to rotate in the same direction during the axial reciprocating motion of the rod-shaped component (1). The motion conversion mechanism includes a motion constraint structure and a force transmission component disposed between the rod-shaped component (1) and the flywheel (2). The motion constraint structure includes a first constraint structure and a second constraint structure. The first constraint structure is configured to move along a first helical path during the axial forward movement of the rod-shaped component (1). The constraint force transmission component causes relative motion between the two components. The second constraint structure is configured to constrain the force transmission component via a second helical path during the axial rearward movement of the rod-shaped component (1), causing relative motion between the two components. The first helical path and the second helical path have opposite directions of rotation. During the axial reciprocating motion of the rod-shaped component (1), the first constraint structure and the second constraint structure alternately constrain the force transmission component and alternately generate relative motion along the first helical path and the second helical path, so that the direction of the force driving the flywheel (2) to rotate remains unchanged. The first constraint structure The first limiting guide structure forms a first spiral path, and the second constraint structure forms a second limiting guide structure forms a second spiral path. The force transmission component can abut against either the first or second limiting guide structure. The first and second limiting guide structures intersect and break at their intersection to form a notch. The size of the notch is limited so that, during the change of movement direction of the rod-shaped component (1), the force transmission component can enter the second spiral path from the first spiral path or enter the first spiral path from the second spiral path via the notch. The motion constraint structure is set in the rod-shaped component. On the outer circumferential surface of component (1), the force transmission component is disposed on the inner circumferential surface of flywheel (2). The first constraint structure includes multiple sets of parallel spaced first limiting guide structures and each first limiting guide structure constructs a first spiral path that is parallel to each other. The second constraint structure includes multiple sets of parallel spaced second limiting guide structures and each second limiting guide structure constructs a second spiral path that is parallel to each other. The intersection of any set of first limiting guide structures and second limiting guide structures is broken and a gap is formed. There are multiple sets of the force transmission component and the number of them is the same as the number of the first limiting guide structure or the second limiting guide structure.

2. The tuned viscous mass damper according to claim 1, characterized in that: The first limiting guide structure includes a first guide surface extending along a first spiral path, and the second limiting guide structure includes a second guide surface extending along a second spiral path. The force transmission component can abut against the first guide surface or the second guide surface.

3. The tuned viscous mass damper according to claim 2, characterized in that: The first limiting guide structure is a first protrusion (3) arranged along the first spiral path, and the second limiting guide structure is a second protrusion (4) arranged along the second spiral path. A first guide surface extending along the first spiral path is provided on one side of the first protrusion (3), and a second guide surface extending along the second spiral path is provided on one side of the second protrusion (4). The force transmission component is a pin (5), and the side circumferential surface of the pin (5) can abut against the first guide surface or the second guide surface.

4. A building structure, characterized in that: The device is equipped with a tuned viscous mass damper as described in any one of claims 1-3.

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