Continuous steel box girder ramp bridge axle coupling vibration control method

Through the vibration control method of coupling vibration of the continuous steel box girder ramp bridge and axle, including dynamic characteristics analysis and vibration damping measures, the vibration coupling problem of curve ramp bridge and axle is solved, and the safety and comfort of the bridge and vehicle are improved, providing effective Vibration control technology.

CN119194937APending Publication Date: 2024-12-27SHENZHEN ROAD & BRIDGE CONSTR GRP +2
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Patent Information

Application Number
CN202411144053.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

Due to the limitations of terrain, land objects and floor area, the design of the curved ramp bridge is complex, and the axle vibration coupling phenomenon is serious, which affects the safety of the bridge structure and vehicle comfort. It is difficult for the existing technology to effectively control the coupling vibration of the axle.

Method used

The coupling vibration control method of continuous steel box girder ramp bridge and axle is adopted, including dynamic characteristics analysis, special inspection and monitoring, anti-capacity stability analysis, axle coupling vibration analysis and driving comfort evaluation, and the bridge vibration response is controlled through vibration reduction measures. Specific steps include establishing a coupling vibration model of the axle, numerical simulation analysis, comparing measured data, arranging sensors for power response testing, and studying the damper layout position and parameters to optimize the vibration damping effect.

Benefits of technology

It effectively reveals the coupling vibration mechanism of axle, evaluates driving comfort, and controls bridge vibration through vibration reduction measures, improves the safety and comfort of bridges and vehicles, and provides technical support for the vibration control of steel box girder ramp bridges.

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Abstract

The invention discloses a control method for axle coupling vibration of a continuous steel box girder ramp bridge. According to the control method, the anti-overturning stability of the continuous steel box girder ramp bridge is analyzed by analyzing the dynamic characteristics of the axle of the steel box girder ramp bridge and performing special inspection / monitoring on the axle of the steel box girder ramp bridge; the method comprises the following steps: carrying out coupling vibration analysis and driving comfort evaluation on a steel box girder ramp bridge axle, carrying out vibration reduction on a target ramp bridge by adopting a tuning type damper and inertial damper combined vibration reduction method, and carrying out vibration response analysis and driving comfort evaluation on the bridge. And the safety of the bridge structure and the driving comfort are improved.
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Citation Information

Patent Citations

  • Highway random traffic flow wind-vehicle-bridge coupling computation method

    CN105389458A

  • Method for controlling vibration comfort in bridge forming state

    CN117037503A

  • Vibration control structure for bridge, and setting method for the same

    JP2016023444A

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