Adjustable temporary supporting bracket for mounting high-speed bridge

The non-powered support frame driven by a combination of hydraulic bladders and pneumatic pressure solves the problems of slow response and reliance on external energy in traditional support frames during bridge construction. It achieves rapid adaptive adjustment and safety warning without the need for external energy, thus improving construction efficiency and safety.

CN120990016AActive Publication Date: 2025-11-21GUANGDONG UNIV OF TECH
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Patent Information

Application Number
CN202511524610.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2025-11-21
Estimated Expiration
2045-10-24

AI Technical Summary

Technical Problem

Traditional temporary support frames are difficult to respond in real time to changes in the ground or minor displacements during bridge construction, resulting in gaps or separation between the support and the beam, which affects construction safety and efficiency. Furthermore, existing intelligent response devices rely on external energy and have poor environmental adaptability.

Method used

The support bracket, which uses a combination of hydraulic bladder and pneumatic pressure for drive, achieves passive adaptive adjustment through a one-way valve and a return flow assembly. Combined with limit locking and mechanical warning, it enables automatic compensation and rapid response without the need for external energy.

Benefits of technology

It achieves rapid response and reliable adaptive adjustment without external energy, reduces equipment costs, improves construction efficiency and safety, and is suitable for complex construction environments.

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Abstract

The invention discloses an adjustable temporary supporting bracket for high-speed bridge installation, and relates to the technical field of bridge installation supporting, the adjustable temporary supporting bracket comprises a rod body, the bottom end of the rod body is fixedly connected with a base, a hydraulic bag is arranged in the rod body, a flowing channel is formed in the rod body, a one-way valve is arranged in the flowing channel, and a bearing rod and a pressing cylinder are slidably connected in the rod body; the pressing cylinder is fixedly connected with the top of the hydraulic bag, a movable cavity is formed in the side, close to the bearing rod, in the rod body, the flowing channel communicates with the lower side of the movable cavity, a piston part is arranged at the bottom end of the bearing rod, and a sealing cavity is formed in the rod body. By arranging a hydraulic and air pressure double-driving-force superposition mechanism, compensation driving force is remarkably improved, quick response can still be achieved especially under the large-gap or high-damping working condition, and the risk of structural damage caused by compensation lag is avoided; meanwhile, an air pressure feedback mechanism does not need external energy, completely depends on internal fluid linkage, and is energy-saving and environment-friendly.
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