Waterlogged sponge energy absorption and vibration attenuation device

A technology of vibration damping device and sponge, which is applied to building components and anti-vibration, can solve the problems of large bearing burden, small vibration damping effect and limited overall damping of the structure, and achieves effective water tank space, large friction resistance and high vibration damping efficiency. Effect

Active Publication Date: 2014-02-19
TSINGHUA UNIV
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Problems solved by technology

At present, the usual way of damper setting is to add additional damper devices to the structure, which usually needs to occupy the space used by the building, while the frequency-tuned mass damper and the frequency-tuned liquid damper need to set a huge mass block or water tank on a special floor, giving The structure of the floor where it is located causes a large load-carrying load
Therefore, the traditional d

Method used

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  • Waterlogged sponge energy absorption and vibration attenuation device
  • Waterlogged sponge energy absorption and vibration attenuation device
  • Waterlogged sponge energy absorption and vibration attenuation device

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[0018] The following describes the implementation of the present invention in detail with reference to the drawings and embodiments.

[0019] Such as figure 1 As shown, a water-saturated sponge energy absorption and vibration reduction device of the present invention includes a water tank 1, a partition 2 and a sponge 3. The partition 2 divides the water tank 1 into several blocks, and each block is filled with sponge 3, the size of the sponge 3 is slightly larger than the size of the block it fills to form an interference fit. Such as figure 2 As shown, there is a through hole 21 at the bottom of each partition 2 to form a communicating device structure so that the height of the liquid in each block is the same after water injection. Due to the back and forth sloshing of the liquid, an energy dissipation effect is produced. In order to make the liquid more resistant during the sloshing process and have a better energy dissipation effect, each block is filled with sponge 3, so t...

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Abstract

A waterlogged sponge energy absorption and vibration attenuation device comprises a water tank, a plurality of partition plates and sponges, wherein the water tank is divided into a plurality of blocks by the partition plates, through holes are formed in the bottoms of the partition plates, and the blocks are filled with the sponges. Compared with a traditional tuned liquid damper, the waterlogged sponge energy absorption and vibration attenuation device has the advantages that water flows back and forth in pores of the sponges in the process of fluctuation, the friction resistance is larger, and vibration attenuation efficiency is higher due to particularities, namely, the porosities, of the sponges in structure; meanwhile, due to the water absorption effect of the sponges, the water in the vibration attenuation water tank can not splash because of fluctuation, the water tank is filled with the water, and the water tank space can be utilized more effectively.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction of building structures, in particular to a water-saturated sponge energy absorption and vibration reduction device. Background technique [0002] With the improvement of anti-vibration requirements of building structures, more and more construction projects adopt structural vibration control technology. Structural vibration reduction control technology mainly reduces the vibration response of the structure by dissipating the vibration energy of the structure by setting various dampers in the structure. Commonly used dampers are: viscous damper, metal yield damper, frictional damper, FM mass damper and FM liquid damper. At present, the usual way of damper setting is to add additional damper devices to the structure, which usually needs to occupy the space used by the building, while the frequency-tuned mass damper and the frequency-tuned liquid damper need to set a huge mass block or w...

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Application Information

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IPC IPC(8): E04B1/98
Inventor 刘天云金峰李庆斌周孟夏桂耀
Owner TSINGHUA UNIV
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