Assembling construction method of bridge girder erection machine in different span areas and bridge girder erection machine

• Main Authors: TAN DENGFENG, XU XIN, DENG CHAO, HU YONG, WU JUNJIE, JIN LIWEN, KE WEIBING, YUAN QUAN, LI YI, KANG YANG, CHEN XIN, MA PAN, CHEN XIAORUI, CHENG AO, LI WEI, LIU YALONG, NING DACHENG, LYU QIANG, ZHAO LEI
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention relates to the technical field of bridge engineering construction, in particular to an assembling construction method of a bridge girder erection machine in different span areas and the bridge girder erection machine. The method comprises the following steps that temporary supports are installed on Pn + 1 piers and Pn + 2 piers in a small-span area through lifting equipment located in the small-span area; large-section longitudinal beams are spliced on the temporary supports of the Pn + 1 piers and the Pn + 2 piers section by section; a crown block assembly is installed on the large-section longitudinal beam, and temporary supports are installed on the piers located in the large-span area through the crown block assembly; and the large-section longitudinal beams are driven to move in the small mileage direction, and the small-section longitudinal beams are assembled at the ends, located in the small-span area, of the large-section longitudinal beams section by section to form longitudinal beam a