In order to solve the problems of low carrying capacity, low allowable speed and inconvenient storage and transportation of existing railway emergency repair beam, a technical scheme for deployable emergency repair beam was proposed. By using ANSYS software and the multi-body dynamics software UM (Universal Mechanism), the finite element model of the emergency repair beam and vehicle model of the C70 (C70 Open Wagon) freight train and the CRH380A (China Railway Highspeed 380A) high-speed train were established. The static analysis, modal analysis and vehicle-bridge interaction analysis of the emergency repair beam were carried out. The results show that: Compared with the existing emergency repair beam, the deployable emergency repair beam has the advantages of convenient storage and transportation, and rapid assembly. The developable emergency repair beam perfectly solves the contradiction between storage and assembly speed. With the increase of span and the decrease of the number of stable main trusses, the indicators of stress, mid-span displacement and acceleration of the key parts of the deployable emergency repair beam tend to be unfavourable. The combination of different main truss can realize the emergency repair beam with different span and width, and the mechanical properties of the emergency repair beam with different span and width are also different.


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    Title :

    Vehicle-bridge Interaction Analysis and Maximum Allowable Speed of a Deployable Emergency Repair Beam


    Additional title:

    KSCE J Civ Eng


    Contributors:
    Zhang, Feifan (author) / Xu, Guangxing (author) / Li, Zhaohong (author) / Li, Mingyang (author)

    Published in:

    Publication date :

    2023-10-01


    Size :

    20 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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