Bidirectional multi-frequency rectangular lattice type tuned liquid damper

Abstract

The invention provides a bidirectional multi-frequency rectangular lattice type tuned liquid damper and relates to a building structure shock controlling device. The bidirectional multi-frequency rectangular lattice type tuned liquid damper is formed by a rectangular-section container, a lattice plate, in-built solution and a fixed part. The damper is simple, practical, convenient to maintain, low in cost, suitable for use in a short term and in a long term, good in self-activation, small in required space, simple to install and convenient to use. The transverse and longitudinal earthquake reactions are controlled by adjusting transverse and longitudinal dimensions, the earthquake reactions under the effects of different formations can be controlled by adjusting the transverse dimension of a lattice, and the fact that a tuned liquid damper designed according to natural vibration frequency of a high-order structure is tall and narrow is avoid. The amount of the dampers is increased correspondingly according to increase of formation orders so as to improve sensitivity of controlling of high-order formation wind vibration and earthquake reactions. When meeting with an earthquake or strong wind, the bidirectional multi-frequency rectangular lattice type tuned liquid damper can reduce power reaction of a building structure and has good protecting effect on the building structure.

Description

technical field [0001] The invention relates to a building structure vibration control device, in particular to a bidirectional multi-frequency rectangular lattice tuning liquid damper for building structure vibration control. Background technique [0002] At present, the basic idea of ​​seismic design of "ductile structural system" is generally adopted in my country and other countries in the world. This kind of anti-seismic structure system allows the structure and load-bearing components (columns, beams, nodes, etc.) to be damaged in the earthquake, that is, relying on the damage of the structure and load-bearing components consumes most of the energy, which often leads to serious damage or even collapse of the structure during the earthquake. To a certain extent, it is unreasonable and unsafe. In 1972, Professor J T P Yao, a Chinese-American scholar, proposed the concept of vibration control of civil engineering structures for the first time on the basis of predecessors...

AI Technical Summary

Problems solved by technology

However, TLD has some shortcomings. First, the tuned liquid damper is generally only used for single-mode control, and cannot effectively control multiple modes.

Second, earthquakes are multi-directional, and the natural frequency of the structure's transverse and longitudinal vibrations is also different. It is necessary to solve the problem of tuning the liquid damper to control earthquakes in different directions and frequencies

Third, it is necessary to solve the problem that the tuned liquid damper designed according to the natural frequency of the high-order structure is tall and narrow, which is not engineering operability

Fourth, to design multiple tuned liquid dampers to control multi-order seismic responses, the mass is too large due to too many numbers, and its placement is also limited by architectural functions and aesthetic requirements, which not only presents certain difficulties and disadvantages in economy and construction Reasonable, but also brings difficulties to domestic water, especially fire water

Fifth, different buildings have different requirements for tuning liquid dampers, which have a certain impact on the mass production of factories

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