Modification of TLJ900 Bridge Erecting Machine for Construction of 400 m Small Curve Box Girders Bridge
In order to solve the construction problem of existing bridge equipment not being suitable for the simple supported box girder transportation in 400 m small curve,the TLJ900 bridge erecting machine and its associated transporting beam vehicle were taken as the research object.Measures such as adding a slewing mechanism to the rear leg trolley,adding a transverse movement apparatus to the lifting device of lower guide beam,and installing a bogie on the load beam trolley were taken to improve the usability and safety of the equipment.This was applied to the construction of the main line of the Xintang-Baiyun Airport-Guangzhou North Intercity Railway.The results show that the equipment modification has effectively solved the difficulties of TLJ900 bridge erecting machine in beam erection,longitudinal movement,and beam feeding construction due to the limitation of a small curve radius of 400 m,and improved the utilization rate of existing transportation equipment,which provides reference and experience to the relevant study and practice.
small curve radiusbridge engineeringTLJ900 bridge erecting machineequipment modification
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