Due to light weight,high efficiency,safety and reliability,the split beam carrier has gradually replaced the integrated beam carrier as a new high-speed rail construction equipment.However,its split structure requires multi-machine and multi-post coordinated operation,which has higher requirements for the number and professionalism of operators.In this paper,according to the two-vehicle cooperative transportation mode of the split beam carrier,the motion attitude model of the split beam carrier in the process of transporting box girders is analyzed,and accordingly,an attitude control strategy in the automatic driving system of the split beam carrier is proposed,and relevant safety issues about the attitude control strategy in the automatic driving system of the beam carrier are discussed.
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