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

A technology of tuning liquid damping and fire water tanks, which is applied in the field of building anti-seismic, which can solve the problems of large space occupation, high construction cost, shallow TLD water level and other problems, so as to improve the anti-seismic performance, solve the problem of shaking frequency and reduce the cost of vibration reduction Effect

CN109299571AActive Publication Date: 2019-02-01INNER MONGOLIA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-02-01

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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.
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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...

Examples

Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] The embodiment of the present invention provides a method for designing a tuned liquid damper based on a building fire water tank, which specifically includes:

[0031] Step 1: Use finite element software (you can use ABAQUS, ANSYS and other software) to model the building structure (such as figure 1 ) And perform modal analysis to obtain the natural vibration period, frequency and quality of the building structure.

[0032] Step 2: O...