A prefabricated damping floor with built-in multi-dimensional energy-dissipating damping particles

Abstract

The invention discloses an assembled vibration attenuating floorslab with built-in multi-dimensional energy-consuming damping particles. The assembled vibration attenuating floorslab meets the designdemands on bearing capacity, deflection, comfort level and the like in a normal use state, can attenuate vibration of a main body structure three-dimensionally, has a good vibration attenuating property in explosion, hurricane or earthquakes, can alleviate the damage degree of the main body structure of the building and is easily replaced after the earthquakes or damage. The assembled vibration attenuating floorslab comprises a prefabricated floorslab, a reserved duct, a longitudinal bar, a distributing rib, horizontal damping particles, a soft hole plug, a horizontal spring, a round rebound plate, a groove, a flange, a web plate, a vertical spring, a rectangular rebound plate, vertical damping particles, a side plate, a prefabricated hole, an embedded steel bar, a light material and an acoustic panel. The assembled vibration attenuating floorslab can be prefabricated and can be assembled quickly on site, and the assembled vibration attenuating floorslab can attenuate vibration of themain body structure three-dimensionally, is a distributed energy-consuming vibration attenuating mode, and is higher in vibration attenuating efficiency.

Description

technical field [0001] The invention relates to a prefabricated vibration-damping floor slab with built-in multi-dimensional energy-dissipating damping particles capable of achieving strong energy dissipation in buildings. The fabricated vibration-damping floor slab can be prefabricated and quickly assembled on site. It is simple, and meets the design requirements of bearing capacity, deflection and comfort in normal use. The prefabricated damping floor slab has a clear damping mechanism, and can perform three-dimensional vibration damping on the main structure. The utility model is easy to replace, and belongs to the field of vibration control and assembleable structure technology in structural engineering. Background technique [0002] With the development of society and the frequent occurrence of earthquakes in recent years, people pay more and more attention to the anti-seismic performance of buildings, but the anti-seismic design of buildings in most parts of our count...

AI Technical Summary

Problems solved by technology

Therefore, increasing the thickness of the slab will amplify the dynamic response of the main structure, and at the same time, the improvement effect of the vertical vibration comfort of the floor slab is not obvious, and may even have adverse effects

The use of TMD to control the vertical vibration of the floor can indeed achieve the purpose of energy dissipation and vibration reduction, reduce the vibration acceleration of the structure, and meet the requirements of structural comfort. However, the frequency band of TMD vibration reduction is narrow, and the controlled structure will be enlarged under non-resonant excitation. dynamic response, and takes up a lot of space

It is also a common method to improve the comfort of the floor through vibration isolation technology, especially for the situation where the vibration source is fixed, the effect of using vibration isolators to reduce vibration is very obvious, but for high-rise structures, vibration isolation technology will make the structure Overturned, and its economic and feasibility are poor

Moreover, the above three vibration reduction measures cannot perform three-dimensional vibration reduction on the floor when it vibrates, and it is not easy to repair and replace when the floor is partially damaged.

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