Transverse pushing device for steel box girder

• Main Authors: WANG GUOGUANG, JIN XICHEN, SUN JINGANG, XIAO DI, LIU YING, MA LIN, MA ZHUANG
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

A piston rod of a walking jack extends outwards to push a joist to drive a main beam of the steel box girder to move upwards, the walking jack transversely moves for a stroke, the piston rod of the walking jack retracts, a cycle is completed, and the cycle is repeated until the main beam of the steel box girder is driven to move to a construction position. Meanwhile, a plurality of layers of cushion blocks are cushioned between the joist and the vertical support, the jack is installed at the original position after the walking jack is dismantled, a piston rod of the jack extends outwards to drive the joist to move upwards, the cushion blocks are pulled out step by step, the piston rod of the jack retracts inwards, and the steps are repeated to achieve overall falling of the steel box girder. And the steel box girder main beam is located on the pier. The walking jack is replaced by the jack during falling, so that the steel box girder is prevented from interfering with the walking jack during falling, the prob