The invention relates to the field of bridge construction, in particular to an early warning method and early warning system for a large-tonnage double-lifting-point deck crane. The early warning method comprises the following steps that a bridge deck crane is used for carrying out trial hoisting, the trial hoisting weight is k times of the maximum theoretical weight of all steel beam sections to be installed, and theoretical data and actual measurement data related to hoisting weight and stress during trial hoisting are obtained; and then actual hoisting of the steel beam section is carried out, theoretical data and actually measured data related to hoisting weight and stress in the actual hoisting process are obtained, data analysis is carried out, and the purposes of hoisting weight deviation early warning, stress deviation early warning, hoisting weight over-limit early warning and stress over-limit early warning are achieved. According to the early warning method and the early warning system, the safety state of the large-tonnage double-lifting-point bridge deck crane can be accurately judged, and safety risk early warning is carried out.

    本申请涉及桥梁施工领域,具体涉及一种大吨位双吊点桥面吊机的预警方法及预警系统。所述预警方法包含以下步骤:用桥面吊机进行试吊,试吊重量采用所有待安装钢梁节段中的最大理论重量的k倍,获得试吊时的相关于吊重、应力的理论数据和实测数据;然后进行钢梁节段实际吊装,获得实际吊装时的相关于吊重、应力的理论数据和实测数据,进行数据分析,达到吊重偏差预警、应力偏差预警、吊重超限预警和应力超限预警的目的。本申请的预警方法及预警系统,能够准确判断大吨位双吊点桥面吊机的安全状态,进行安全风险预警。


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    Title :

    Early warning method and early warning system for large-tonnage double-suspension-point bridge deck crane


    Additional title:

    一种大吨位双吊点桥面吊机的预警方法及预警系统


    Contributors:
    WANG WEI (author) / YAO SEN (author) / WU JUFENG (author) / WANG BO (author) / GONG JIE (author) / GUO SHANGQIAN (author) / ZHAO JIXIANG (author) / ZHAO CHENGGUI (author) / SONG HAITAO (author) / CAI XIN (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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