A design method of tuned liquid damper based on building fire water tank

Abstract

The invention discloses a design method of a tuned liquid damper based on a building fire fighting water tank. The method comprises the following steps: determining whether a fire water tank is suitable for being converted into a tuned liquid damper; When the fire water tank is suitable to be transformed into a tuned liquid damper, the difference of natural vibration period and frequency between the fire water tank and the building structure under the fire water tank is obtained. Formulate and adjust the scheme of setting up the spoiler net and water level in the fire water tank; Determine thedamping effect of fire water tank. As that disturb net is added in the fire water tank at the top of the high-rise building and the water level is controlled, both the function of the fire water tankand the TLD function can be realized, thereby playing a vibration damping role; It is not necessary to set a large number of small shallow water tanks as TLD, but to use the original fire water tankat the top of the building as TLD, which not only reduces the cost of vibration reduction but also does not affect the use of the building. Adding a spoiler net in the fire water tank does not affectthe quantity of water in the fire water tank of the building, but also can achieve the effect of vibration reduction by changing the sloshing frequency of the water.

Description

Technical field [0001] The invention relates to the technical field of building earthquake resistance, and more specifically to a design method of a tuned liquid damper based on a building fire water tank. Background technique [0002] In order to overcome the shortcomings of traditional seismic design methods, scholars at home and abroad have introduced vibration control theory into modern structural engineering, making the structure design enter the stage of vibration reduction design from pure seismic design. In recent years, through the continuous efforts of the majority of researchers and engineers, structural vibration control has made certain progress in the relevant theories, tests and engineering practices of the application of structural vibration control to civil engineering structures. Among them, passive control devices such as tuned vibration reduction systems have gradually been applied to structural seismic resistance due to their low cost, low daily maintenance c...

AI Technical Summary

Problems solved by technology

This puts forward higher requirements on the amount of water used for TLD, resulting in the existing TLD system often using too many water tanks, high construction costs, large space, and whether the water tanks are connected and the water in the tanks is not suitable. Use and other issues

[0004] Second, at present, the shallow water TLD vibration reduction control technology is relatively mature, but the shallow water TLD has a shallow water level and a small amount of water, so its effect is limited

Deepwater TLD has a higher water level and a large amount of water, so its liquid slosh damping has a more significant impact on the control effect, and it has more advantages in building vibration reduction. However, how to effectively improve the liquid slosh damping of deepwater TLD still needs to be studied question

Images