A movable steel bridge structure on a river

By installing bridge piers and hydraulic cylinders on both sides of the river, and equipping them with sensors and control terminals, the problems of bridge collision and vibration during the operation of the movable steel bridge were solved, achieving safe navigation and extending the life of the hydraulic cylinders.

CN224548935UActive Publication Date: 2026-07-24POWERCHINA HUADONG ENG CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG CORP LTD
Filing Date
2025-07-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing movable steel bridges are prone to collisions and vibrations due to structural manufacturing errors and civil engineering deviations during operation, resulting in different bridge extensions. Furthermore, large deviations in hydraulic cylinder pressure affect the safety of ship navigation.

Method used

The first and second piers are set up on both sides of the river channel, and hydraulic cylinders are arranged between them. The hydraulic cylinders are connected to the steel bridge body and equipped with stroke sensors and pressure sensors. The stroke and pressure deviation of the hydraulic cylinders are monitored and adjusted through the control terminal. An alarm is set up to sound an alarm when the deviation is too large, so as to avoid collisions and shaking.

Benefits of technology

It effectively corrects the deviations in the stroke and pressure of the hydraulic cylinder, prevents bridge collisions and vibrations, ensures safe navigation of the ship, and extends the service life of the hydraulic cylinder.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224548935U_ABST
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Abstract

The utility model relates to a movable steel bridge structure on river, has: first pier, second pier, second pier is located first pier side to river, steel bridge body, arrange on first pier and second pier, the steel bridge body combination becomes movable steel bridge on both sides of river, the lower extreme of steel bridge body and the top of first pier hinge connection, the lower extreme of steel bridge body and the top of second pier lap joint, hydraulic cylinder, arrange between first pier and second pier, the fixed end hinge connection of hydraulic cylinder is connected on ground, the telescopic end hinge connection of hydraulic cylinder is connected on steel bridge body, the telescopic end of hydraulic cylinder is provided with travel sensor, travel sensor can obtain the stroke of telescopic end of hydraulic cylinder, control terminal, control terminal can receive the stroke of travel sensor acquisition on two hydraulic cylinders and determine the stroke deviation of two hydraulic cylinders, control terminal can adjust hydraulic cylinder when the stroke deviation is greater than stroke deviation threshold value and make the stroke deviation of two hydraulic cylinders lower than stroke deviation threshold value.
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