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Tuned liquid energy dissipation and seismic mitigation pier structure

A bridge pier, liquid technology, applied in the direction of bridges, bridge parts, bridge construction, etc., to achieve the effect of consuming seismic energy, high stability and reducing seismic action

Inactive Publication Date: 2020-11-17
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no shock absorbing structure for the pier body in the prior art

Method used

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  • Tuned liquid energy dissipation and seismic mitigation pier structure
  • Tuned liquid energy dissipation and seismic mitigation pier structure
  • Tuned liquid energy dissipation and seismic mitigation pier structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] Such as figure 1 with figure 2 , each tuning liquid tank also includes a motor 204; the water retaining vane module includes a column 202 and a spiral blade-shaped water retaining vane 203; the rotating shaft of the motor 204 is arranged along the vertical axis direction of the box body 201; the The water blocking blade 203 is fixed on the column 202 ; the column 202 is connected to the rotating shaft of the motor 204 . The motor 204 is located outside the box body 201 .

[0032] In addition, the outer wall of the hollow pier 1 is also provided with an earthquake sensor; after the earthquake sensor detects an earthquake signal, it sends a signal to turn on the motor 204 .

[0033] After the motor 204 is turned on, the helical blade-shaped water-retaining blade 203 rotates at a high speed, driving the tuning liquid to form a vortex centered on the column 202 . The tuning liquid vortex has a large amount of kinetic energy, and achieves dynamic balance with high stabil...

Embodiment approach 2

[0035] Such as image 3 with Figure 4 , the water blocking vane module includes a column 202 fixed on the axis of the box body 201 and a plurality of water blocking vanes 203 fixed on the column 202 .

[0036] The water-blocking blades 203 are umbrella-shaped; a plurality of umbrella-shaped water-blocking blades 203 are arranged up and down, and the center of each umbrella-shaped water-blocking blade 203 is fixedly connected to the column 202 .

[0037] Under the action of an earthquake, the hollow pier 1 vibrates, and drives the box body 201 to move together, so that the tuning liquid sloshes, and beats the water retaining blades 203 and the box body 201 to consume seismic energy, thereby reducing the vibration of the pier 1 and improving the height of the pier 1. earthquake resistance. The umbrella-shaped water-retaining blade 203 can generate multi-directional force with the tuning liquid, adapting to vibration in random directions during an earthquake.

[0038] The tun...

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PUM

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Abstract

The invention provides a tuned liquid energy dissipation and seismic mitigation pier structure which comprises a hollow pier and a plurality of tuned liquid boxes. A plurality of layers of supportingtables which are arranged up and down are arranged in an inner cavity of the hollow pier; each tuning liquid box is arranged on one layer of supporting table; each tuning liquid box comprises a box body containing tuning liquid and a water baffle module arranged in the tuning liquid. Earthquake energy can be consumed from the interior of the pier, so that pier vibration is reduced, and the earthquake resistance of the pier is improved.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an energy-dissipating and shock-absorbing pier structure of a tuned liquid. Background technique [0002] With the development of bridge structures in the direction of long spans, softness, and low damping, the response of structures under dynamic loads such as earthquakes, wind, vehicles, and pedestrians is intensified, and the risk of bridge structure damage is greatly increased. Therefore, how to improve the anti-seismic capacity of bridges and reduce the damage to bridge structures caused by earthquakes has brought great challenges to the anti-seismic design of bridges. [0003] In view of the serious destructive effect of earthquakes on bridges, active or passive structural shock absorption measures such as the use of shock-absorbing and isolation bearings and the installation of foundation isolation layers will be considered in bridge design to improve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02
CPCE01D19/02
Inventor 高玉峰张煜陈克坚王景全曾永平周源李振亚陈硕戴光宇叶至韬舒爽
Owner HOHAI UNIV
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