Waterlogged sponge energy absorption and vibration attenuation device

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...

AI Technical Summary

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 damper setting method is greatly limited, so the overall damping of the structure is also very limited, so that the vibration control effect is affected

In addition, for frequency-modulated mass dampers and frequency-modulated liquid dampers, due to the limitation of the setting floor position and quality, the frequency range of vibration reduction control is narrow, and the vibration reduction effect is very small

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