Large-tonnage box girder erection construction system capable of realizing height control
The utility model discloses a large-tonnage box girder erection construction system capable of achieving height control. The bridge girder erection machine comprises a bridge girder erection machine body, a transfer jack used for jacking a box girder when the box girder moves, a self-propelled girde...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a large-tonnage box girder erection construction system capable of achieving height control. The bridge girder erection machine comprises a bridge girder erection machine body, a transfer jack used for jacking a box girder when the box girder moves, a self-propelled girder carrying portal used for carrying the box girder, a rail bearing girder used for supporting the self-propelled girder carrying portal to operate, and a winch used for pulling the rail bearing girder to operate in the bridge pier erection direction. The number of the rail bearing beams is two. Theself-propelled beam carrying portal frame comprises a walking mechanism and a main bearing beam, the main beam is of a portal structure, supporting legs of the walking mechanism are of a telescopic structure, and a three-dimensional beam falling sliding device used for bearing a box beam is arranged on the main bearing beam. According to the box girder erection system, erection of the box girder is completed through the r |
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