Suspender structure of high-speed railway arch bridge

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...

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

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