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Tuned liquid damper design method and device, medium and equipment

A technology for tuning liquid damping and design methods, which is applied in the field of media and equipment, devices, and design methods for tuning liquid dampers. It can solve problems such as inaccurate evaluation of TLD control effects, and achieve excellent manufacturability, meticulous design, and extended service life. Effect

Active Publication Date: 2021-07-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the TLD response is obviously nonlinear under the action of wind load, and the damping ratio of the TLD with built-in energy dissipation devices will change with the change of the TLD response, so the linear design method cannot accurately evaluate the TLD control effect

Method used

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  • Tuned liquid damper design method and device, medium and equipment
  • Tuned liquid damper design method and device, medium and equipment
  • Tuned liquid damper design method and device, medium and equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0062] This embodiment discloses a method for designing a tuned liquid damper, such as figure 1 As shown in , the specific steps include:

[0063] Step 1. Obtain the mass ratio μ and liquid sloshing frequency f of the structure-TLD coupling system required by the design t and TLD damping ratio The preliminary design of TLD is carried out by the equivalent linearization method, and the preliminary designed TLD outline size, liquid depth and design parameters of built-in energy dissipation devices are obtained.

[0064] The mass ratio μ and liquid sloshing frequency f of the structure-TLD coupling system t and TLD damping ratio It is obtained according to the information required by the project design. Based on the above parameters, the preliminary design of the TLD can be carried out through the equivalent linearization method.

[0065] In this embodiment, the built-in energy dissipation device of the TLD is made of fiber-reinforced plastic. Fiber-reinforced plastic (FRP)...

Embodiment 2

[0129] This embodiment discloses a tuning liquid damper design device, including the following functional modules:

[0130] TLD preliminary design module, used to obtain the mass ratio μ and liquid sloshing frequency f of the structure-TLD coupling system required by the design t and TLD damping ratio Preliminary design of TLD is carried out by equivalent linearization method, and the preliminary designed TLD outline size, liquid depth and design parameters of built-in energy dissipation device are obtained;

[0131] Building blocks for the equations of motion of structure-TLD coupled systems;

[0132] The sensitivity analysis and fitting module is used to analyze the sensitivity of the TLD damping ratio of the structure-TLD coupling system under different return period wind loads, and to fit the relationship curve between the TLD response and the TLD damping ratio;

[0133] The modal parameter identification and fitting module is used to decouple and separate the measured ...

Embodiment 3

[0139] This embodiment discloses a storage medium, which stores a program. When the program is executed by a processor, the method for designing a tuning liquid damper described in Embodiment 1 is implemented, as follows:

[0140] Step 1. Obtain the mass ratio μ and liquid sloshing frequency f of the structure-TLD coupling system required by the design t and TLD damping ratio The preliminary design of TLD is carried out by the equivalent linearization method, and the preliminary designed TLD outline size, liquid depth and design parameters of built-in energy dissipation devices are obtained.

[0141] Step 2. Construct the structure-TLD coupling system motion equation, analyze the sensitivity of the TLD damping ratio of the structure-TLD coupling system under different return period wind loads, and fit the relationship curve between the TLD response and the TLD damping ratio.

[0142] Step 3. Based on the current design of the TLD, conduct a shaking table test or numerical si...

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Abstract

The invention discloses a tuned liquid damper design method and device, a medium and equipment, wherein the method comprises the steps: firstly, carrying out TLD preliminary design, and obtaining TLD preliminary design parameters; analyzing the sensitivity of the TLD damping ratio of the structure-TLD coupling system under the action of the wind load, and fitting a relation curve of the TLD response and the TLD damping ratio; based on TLD current design parameters, conducting TLD vibration reduction performance vibration table test or numerical simulation analysis, obtaining the liquid sloshing frequency ft', and fitting a TLD damping ratio and TLD response relation curve; obtaining damping ratios which can be provided by the TLD under the action of wind loads in different return periods, and judging whether the current ft' of the TLD and the response of a controlled structure can meet a control target or not; if not, adjusting the TLD design parameters, calculating the liquid sloshing frequency ft' and the damping ratio till the obtained ft' and the response of the controlled structure meet the control target, and obtaining the final design result of the TLD. According to the invention, the design of the TLD is more detailed and accurate.

Description

technical field [0001] The invention belongs to the field of wind-induced vibration control of super high-rise buildings, and in particular relates to a design method, device, medium and equipment of a tuned liquid damper. Background technique [0002] Tuned liquid damper (TLD) is a passive control device commonly used in wind-induced vibration control of super high-rise buildings. It has received more and more attention because of its relatively simple structure, low cost, and can also be used as a fire water tank. For the structure-TLD coupling system, the mass ratio, liquid sloshing frequency, and TLD damping ratio are three important design parameters closely related to the control effect; among them, the mass ratio is the ratio of the effective mass of the liquid in the TLD to the controlled modal mass of the structure , the value range is usually 1% to 5%; the liquid sloshing frequency is related to the length of the tank and the liquid depth, and the control effect is...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/17G06F30/20
Inventor 张蓝方谢壮宁张乐乐石碧青江毅潘建荣
Owner SOUTH CHINA UNIV OF TECH
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