Method for lifting and installing main beam in suspender area of steel truss tied arch bridge by adopting cable crane

• Main Authors: WANG ZHIQIANG, YAO DONGXU, LIU ANZHENG, PANG QING, LUO YONGHUA, LIU HENGYU, LI QIANG, WANG XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 24.06.2022
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention relates to a method for hoisting and mounting a main beam in a suspender area of a steel truss tied arch bridge by adopting a cable crane, which comprises the following steps of: arranging a beam section hoisting system in a non-suspender area on the midspan side of a main pier, and hoisting a beam section to be mounted to a certain height; the cable crane lifts a lifting bracket in the midspan, the lifting bracket is arranged below the main beam in the transverse bridge direction, and it is guaranteed that a lifting rope of the cable crane does not make contact with the arch rib; the cable crane moves the lifting bracket to the position below the beam section, and after the beam section is placed on the lifting bracket, the cable crane carries the beam section through the lifting bracket to move to the installation position to be connected with the lifting rod. According to the method, the steel truss tied arch bridge suspender area girder can be installed through the cable crane for arch rib i