The invention relates to a land turning-over method and system for a large asymmetric steel truss girder, and the method comprises the steps that at least three turning-over devices are arranged within the span range of a portal crane, and the multiple turning-over devices are located on the same straight line; the gravity center of the large-scale asymmetric steel truss girder is obtained, the large-scale asymmetric steel truss girder is tightly placed on the supporting pieces of the multiple turning-over devices, and the vertical line of the gravity center of the large-scale asymmetric steel truss girder and the straight line where the multiple turning-over devices are located is located between any two adjacent turning-over devices; a crane of the portal crane is moved to the position above a lifting lug of the large asymmetric steel truss girder, and the working end of the crane is connected with the lifting lug through a lifting rope; and overturning the large asymmetric steel truss girder to a critical state through the crane, and hoisting the large asymmetric steel truss girder. According to the land turning-over method and system for the large asymmetric steel truss girder, the construction efficiency can be improved, and the construction risk can be reduced.

    本申请是关于一种大型不对称钢桁架梁的陆地翻身方法及系统,其中,所述方法包括:将至少三个翻身装置布置在门式起重机的跨度范围之内,其中,多个所述翻身装置位于同一直线上;获取大型不对称钢桁架梁的重心,将大型不对称钢桁架梁紧贴放置在多个所述翻身装置的支撑件上,其中,所述大型不对称钢桁架梁的重心与多个所述翻身装置所在直线的垂线,位于任意两个相邻的所述翻身装置之间;将所述门式起重机的吊机移动到所述大型不对称钢桁架梁的吊耳上方,通过吊装绳将所述吊机的工作端与所述吊耳连接;通过所述吊机将所述大型不对称钢桁架梁翻转至临界状态并吊起。本申请提供大型不对称钢桁架梁的陆地翻身方法及系统,能够提高施工效率,减小施工风险。


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    Title :

    Land turning-over method and system for large asymmetric steel truss girder


    Additional title:

    一种大型不对称钢桁架梁的陆地翻身方法及系统


    Contributors:
    ZHANG HAIFENG (author) / CHEN SHANTING (author) / WU JIANGBO (author) / QIN ZHIHONG (author) / ZHOU KANG (author) / DAI JIANGTAO (author)

    Publication date :

    2025-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / E01D BRIDGES , Brücken



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