A bridge equipped with viscous dampers

A viscous damper and bridge technology, applied in bridges, bridge construction, bridge parts, etc., can solve problems such as poor structural stability, increased maintenance costs, and difficult maintenance, so as to achieve less damage, reduce maintenance costs, and improve stability sexual effect

Active Publication Date: 2019-02-12
CHINA MAJOR BRIDGE ENERGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the abutment structure can bear the thrust, but it cannot withstand the huge tensile force under the dynamic load. Therefore, this kind of damper makes the abutment easy to damage, poor in structural stability, difficult to repair, and increases maintenance costs

Method used

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  • A bridge equipped with viscous dampers
  • A bridge equipped with viscous dampers
  • A bridge equipped with viscous dampers

Examples

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0035] see figure 1 with figure 2 As shown, in the first embodiment, the present invention provides a viscous damper, including: a body 1 , a piston rod 2 and a piston 3 .

[0036] There is a cavity 11 in the body 1, and the cavity 11 is filled with a damping medium. One end of the piston rod 2 extends into the cavity 11, and the piston 3 is set at the end of the piston rod 2 extending into the cavity 11. The piston 3 pushes the cavity 11 is divided into a first chamber 12 and a second chamber 13, at least one channel 32 is provided between the first chamber 12 and the second chamber 13; meanwhile, between the first chamber 12 and the second chamber 13 There is also at least one one-way channel 31, which opens when the viscous damper is under tension and closes when the viscous damper is under pressure.

[0037] The passage 32 and the one-...

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PUM

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Abstract

The invention discloses a viscous damper and a bridge with viscous dampers, and relates to the field of bridge design. The viscous damper comprises a body, a piston rod and a piston. A cavity is formed in the body and filled with a damping medium, one end of the piston rod stretches into the cavity, the piston is arranged at the end, stretching into the cavity, of the piston rod and divides the cavity into a first chamber and a second chamber, and at least one channel is formed between the first chamber and the second chamber; at least one one-way channel is further formed between the first chamber and the second chamber, and the one-way channels are opened when the viscous damper bears tension and are closed when the viscous damper bears pressure. According to the viscous damper, one-way circulation of the first chamber and the second chamber can be achieved, one-way acting force is generated on an object, and then bridge abutments only bear thrust of a girder and do not bear tension, so that the stress state of the bridge abutments is greatly improved, damage to the bridge abutments is not likely to be caused, the stability of the bridge structure is improved, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of bridge design, in particular to a viscous damper and a bridge equipped with the viscous damper. Background technique [0002] For long-span bridges in mountainous areas, longitudinal dampers are usually installed at the positions of the middle towers and piers to form a longitudinal full-floating restraint system, so that the girder body can move freely in the longitudinal direction under slow loads, and the longitudinal dampers under faster loads Fixed, but the middle towers and piers of long-span bridges in mountainous areas are usually high, which will cause the towers and piers to bear huge longitudinal bending moments, greatly increase the difficulty of design and construction of towers and piers, and increase the investment in engineering costs. [0003] In order to stabilize the structure of long-span bridges in mountainous areas, longitudinal dampers are usually arranged on both sides of the girder end, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 徐伟罗扣梅大鹏高宗余肖海珠付岚岚陈翔张成东徐科英欧阳涛
Owner CHINA MAJOR BRIDGE ENERGINEERING
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