Suspender structure of high-speed railway arch bridge

A technology for high-speed railways and arch bridges, applied in arch bridges, bridges, bridge parts, etc., can solve problems such as difficulty in installation or replacement of hangers or slings, hidden dangers of bridge safety, corrosion of the lower ends of hangers, etc., to improve the convenience of replacement and installation. Fast and convenient, the effect of preventing anchorage from rusting

Pending Publication Date: 2020-04-21
CHINA RAILWAY DESIGN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Suspension arch bridges have made great progress and applications, but many problems have been exposed in use. The arch ribs and the pre-buried parts of the suspenders in the beam body are often twisted at an angle, which makes it difficult to install or replace conventional suspenders or slings.
[0003] In actual construction, the boom needs to be pre-tensioned after the overall installation is completed. After the tension is completed, waterproof measures such as waterproof caps can be installed. Once there is rainfall during the operation cycle, water will accumulate in the pre-embedded pipe body , it is difficult to extract rainwater from the upper end of the embedded pipe, and it is difficult to clean the rainwater, which leads to corrosion and other phenomena at the lower end of the boom, which poses a certain hidden danger to the safety of the bridge

Method used

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  • Suspender structure of high-speed railway arch bridge
  • Suspender structure of high-speed railway arch bridge
  • Suspender structure of high-speed railway arch bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1~2 As shown, a suspender structure of a high-speed railway arch bridge includes an exposed exposed steel tie rod 7, the upper end of the exposed steel tie rod 7 is connected with the protruding end of the arch rib pre-embedded steel tie rod 3 through a connecting assembly, and the exposed steel tie rod 7. The lower end is connected to the protruding end of the embedded steel tie rod 9 of the beam body through the connecting assembly. The nut 11 is fixed, and the spherical washer 10 at the tension end of the beam body and the spherical nut 11 at the tension end of the beam body form a drainage channel to avoid water accumulation.

[0033] The upper end of the arch rib pre-embedded steel tie rod 3 passes through the steel tube concrete arch and is fixed by the spherical nut 1 at the fixed end of the arch rib and the spherical washer 2 at the fixed end of the arch rib.

[0034] The spherical washer 10 at the tension end of the beam body, the spherical nut...

Embodiment 2

[0042] Such as Figure 3~4 As shown, a suspender structure of a high-speed railway arch bridge includes an exposed exposed steel tie rod 7, the upper end of the exposed steel tie rod 7 is connected with the protruding end of the arch rib pre-embedded steel tie rod 3 through a connecting assembly, and the exposed steel tie rod 7. The lower end is connected to the protruding end of the embedded steel tie rod 9 of the beam body through the connecting assembly. The nut 11 is fixed, and the spherical washer 10 at the tension end of the beam body and the spherical nut 11 at the tension end of the beam body form a drainage channel to avoid water accumulation.

[0043] The upper end of the arch rib pre-embedded steel tie rod 3 passes through the steel tube concrete arch and is fixed by the spherical nut 1 at the fixed end of the arch rib and the spherical washer 2 at the fixed end of the arch rib.

[0044] The spherical washer 10 at the tension end of the beam body, the spherical nut...

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PUM

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Abstract

The invention discloses a suspender structure of a high-speed railway arch bridge. The suspender structure comprises an exposed steel pull rod, the upper end of the exposed steel pull rod is connectedwith an extending end of an arch rib pre-embedded steel pull rod through a connecting assembly; the lower end of the exposed steel pull rod is connected with an extending end of a beam body pre-embedded steel pull rod through a connecting assembly; the lower end of the beam body pre-buried steel pull rod penetrates through a bridge floor and then is fixed through a beam body tensioning end spherical washer and a beam body tensioning end spherical nut, and a drainage channel for avoiding the water storage phenomenon is formed between the beam body tensioning end spherical washer and the beam body tensioning end spherical nut. The suspender structure is arranged at the fixed part of the arch rib pre-embedded steel pull rod penetrating the bridge floor downward, the drainage channel is addedwithout influencing fixing, rainwater drainage is facilitated, anchorage device corrosion is prevented, when a steel pull rod suspender system needs to be replaced, only the exposed suspender part needs to be replaced, the durability and replacement convenience of the suspender system are improved, and installation is rapid and convenient.

Description

technical field [0001] The invention belongs to the field of prestressed rigging, and in particular relates to a suspender structure of a high-speed railway arch bridge. Background technique [0002] Suspension arch bridges have made considerable development and application, but many problems have been exposed in use. Often, the arch ribs and the pre-buried parts of the suspenders in the beam body are twisted at an angle, which makes it difficult to install or replace conventional suspenders or slings. [0003] In actual construction, the boom needs to be pre-tensioned after the overall installation is completed. After the tension is completed, waterproof measures such as waterproof caps can be installed. Once there is rainfall during the operation cycle, water will accumulate in the pre-embedded pipe body , It is difficult to extract rainwater from the upper end of the embedded pipe, and it is difficult to clean the rainwater, resulting in corrosion and other phenomena at t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D4/00
CPCE01D4/00E01D19/00
Inventor 白鸿国苏伟左家强杨欣然万明李艳苑军锋王浩
Owner CHINA RAILWAY DESIGN GRP CO LTD
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