Large-span steel trestle construction device and method in deep canyon area

• Main Authors: FANG JIN, CUI YUEYA, ZHANG SHIKUI, YI XUE, JIANG SHUO, ZHANG ZHENGWU, CHEN HONGLIANG, LIU PENGXIANG, WANG HANLIN
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention provides a deep canyon area large-span steel trestle construction device and method.The deep canyon area large-span steel trestle construction device comprises a first bridge pier and a second bridge pier which are arranged on the two sides of a river valley, a zero bridge abutment is arranged on the outer side of the first bridge pier, a reaction frame is arranged on the zero bridge abutment, a third bridge abutment is arranged on the outer side of the second bridge pier, and an L-shaped supporting base is arranged on the third bridge abutment; the first bridge pier and the second bridge pier are connected with a guide frame and a traction frame through steel pipe piles correspondingly, and the traction frame drags the military beam to the L-shaped supporting base from the zero bridge abutment through a cable. Construction is safe and efficient, field operation conditions are fully combined, the large-span temporary steel bridge with the main span being 40 m can be successfully installed in pla