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Suspension bridge main cable structure utilizing ventilation steel pipes for dehumidification

A suspension bridge and steel pipe technology, which is used in bridges, bridge parts, bridge construction and other directions to achieve reliable dehumidification effects.

Inactive Publication Date: 2020-08-14
北京赛亿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the small gaps between the strands inside the main cable and the parallel steel wires inside the strands, it is difficult for the dry air poured in from the outside to enter the gaps.

Method used

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  • Suspension bridge main cable structure utilizing ventilation steel pipes for dehumidification
  • Suspension bridge main cable structure utilizing ventilation steel pipes for dehumidification
  • Suspension bridge main cable structure utilizing ventilation steel pipes for dehumidification

Examples

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Embodiment 1

[0041] 1 main cable of standard suspension bridge based on the present invention

[0042] Due to certain differences in the length specifications of the main cables of suspension bridges, the number of parallel steel wires in the cable strands can be divided into 61, 91, and 127 according to the needs. In this example, 61 standard cable strands are used for illustration.

[0043] 1.1 Main cable specification

[0044] In this example, the number of strands used for the main cable is 19, of which, except for the central strand, the rest of the strands are force-bearing strands, a total of 18, see figure 1 .

[0045] 1.2 Stressed cable strand structure

[0046] The tensioned strands are all parallel steel wires except for a ventilation steel pipe in the center. The length of the parallel steel wire and the ventilation steel pipe is the same, usually related to the size of the applied bridge. The example of the present invention selects the parallel steel wire as φ5mm level. The ...

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Abstract

A main cable of a suspension bridge is a main load part of the suspension bridge, and a dehumidification degree of the main cable of the suspension bridge is related to a service life and a safety coefficient of the suspension bridge. According to a suspension bridge main cable structure utilizing ventilation steel pipes for dehumidification, effective air humidity control is performed on the maincable through the ventilation steel pipes, the suspension bridge main cable can keep air in the main cable to be dry, and a service life of a bridge is prolonged.

Description

technical field [0001] The invention relates to the field of the main cable structure of a suspension bridge, in particular to a main cable structure of a suspension bridge using ventilated steel pipes for dehumidification. Background technique [0002] Aiming at the problems existing in the existing suspension bridge main cable dehumidification and anticorrosion technology, the present invention provides a suspension bridge main cable structure using ventilated steel pipes for dehumidification to solve the problem that the humid air inside the suspension bridge main cable is difficult to remove. [0003] In traditional dehumidification systems, dry air is usually poured into the interior of the main cable from the outside to the inside at a certain pressure. However, due to the small gaps between the strands inside the main cable and between the parallel steel wires inside the strands, it is difficult for the dry air poured in from the outside to enter the gaps. Humid air ...

Claims

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Application Information

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IPC IPC(8): E01D19/16E01D21/00
CPCE01D19/16E01D21/00
Inventor 胡为峰高冬宇汪玉玲肖葵杨庆新
Owner 北京赛亿科技有限公司
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