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Lock chain type earthquake damage replaceable energy dissipation device

A technology of energy-consuming devices and chains, which is applied in bridge erection/assembly, bridge maintenance, and bridge reinforcement. The effect of not easy to reduce the bearing capacity

Active Publication Date: 2017-11-10
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through experiments and theoretical research, it is found that the dry joint section assembled bridge pier has good self-resetting ability under earthquake excitation; but if no special energy dissipation device is installed, the energy dissipation capacity is poor, and the bottom section is prone to compression. broken

Method used

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  • Lock chain type earthquake damage replaceable energy dissipation device
  • Lock chain type earthquake damage replaceable energy dissipation device
  • Lock chain type earthquake damage replaceable energy dissipation device

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Embodiment Construction

[0023] The invention provides a chain-type shock-loss replaceable energy-consuming device, which belongs to the field of anti-seismic and shock-absorbing bridge engineering, including: U-shaped pre-embedded joints, chain-type buttons with switches, and steel bar sleeves with connecting rings on the top And energy-dissipating steel rods, wherein the energy-dissipating steel rods are composed of connecting joints with opposite thread directions at both ends and a diameter-reducing section in the middle. The U-shaped pre-embedded joint is connected to the steel bar sleeve with a connecting ring on the top through a chain button with a switch. Because the threads at both ends of the energy-dissipating steel rod run in opposite directions, when the two ends of the energy-dissipating steel rod are connected to the steel bar sleeve, the entire energy-dissipating device can be tightened only by turning the energy-dissipating steel rod, and finally the energy-dissipating device after in...

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Abstract

The invention discloses a lock chain type earthquake damage replaceable energy dissipation device. The lock chain type earthquake damage replaceable energy dissipation device comprises a U-shaped pre-embedded joint (1), a lock chain type button (2) with a switch, a reinforcing rib sleeve (3), top end of which is connected with a circular ring, and an energy dissipation steel rod (4). The device is used in a dry joint section splicing pier; the U-shaped pre-embedded joint (1) is separately pre-embedded into the top of a bearing table and the bottom of a bottom second section; the U-shaped pre-embedded joint (1) is connected to the reinforcing rib sleeve (3), top end of which is connected with the circular ring through the lock chain type button (2) with the switch; and connecting heads (4.1) at the two ends of the energy dissipation steel rod (4) are connected with the reinforcing rib sleeve (3), top end of which is connected with the circular ring. The dry joint section splicing pier using the lock chain type earthquake damage replaceable energy dissipation device has good self-turn capacity and energy dissipation capacity; and moreover, the lock chain type earthquake damage replaceable energy dissipation device is replaced after an earthquake, so that rapid repair for the pier after the earthquake is realized.

Description

technical field [0001] The invention relates to a technology for quickly repairing post-earthquake bridge piers by using a chain-type earthquake-damage recoverable energy-consuming device, which belongs to the field of anti-seismic and shock-absorbing technologies for bridge engineering. Background technique [0002] Assembled piers with dry joint segments are to divide the pier body into several segments vertically, the longitudinally stressed steel bars are disconnected at the joints of the segments, and the segments are connected by "dry joints" or at the joints. Fill epoxy resin at the bridge pier to improve the durability of the bridge piers, and then use post-tensioning prestressing to connect the segments into a whole; due to the advantages of rapid construction, highway bridges in non-seismic areas of the United States and some including Hong Kong-Zhuhai-Macao Bridge in China It has been applied in engineering applications in river-crossing and sea-crossing bridges i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
Inventor 王景全王震
Owner SOUTHEAST UNIV
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