Full-span bridge erection machine for box girder passing through tunnels on passenger dedicated line

Abstract

The invention belongs to the field of bridging equipment, in particular to a full-span bridge erection machine for a box girder passing through tunnels on a passenger dedicated line. The full-span bridge erection machine comprises a main longitudinal girder assembly and a lower guide beam assembly which is suspended below the main longitudinal girder assembly; the front part of the main longitudinal girder assembly is provided with a front leg assembly, the rear part of the main longitudinal girder assembly is provided with a rear leg assembly, and the rear part of the main longitudinal girder assembly, which is at the outside of the rear leg assembly, is provided with a C-type leg assembly; an auxiliary leg assembly and a lower guide beam crane assembly are arranged between the main longitudinal girder assembly and the lower guide beam assembly; a hoisting trolley assembly and a winding gear connected with the hoisting trolley assembly are arranged on the main longitudinal girder assembly; the front end of the main longitudinal girder assembly is provided with an auxiliary trolley assembly which moves longitudinally along the main longitudinal girder assembly; and by means of simple disassembly, the bridge erection machine can pass through the channel under the condition of being packed by a girder carrier, and successfully puts guide beams to proper positions at a portal; and the bridge erection machine can be rapidly arranged at the proper position and achieves the bridging state.

Description

technical field [0001] The invention belongs to the field of bridge erecting equipment, and in particular relates to a bridge erecting machine for a whole hole box girder passing through a tunnel for passenger dedicated lines. Background technique [0002] In recent years, my country's high-speed rail industry has developed rapidly, and various bridge erecting machines have been continuously launched, which has promoted the high-level and high-quality development of the high-speed rail industry. As the most important link in laying high-speed rail, the tunnel must have a certain operating space within the effective section of the tunnel when the girder transporter passes through the tunnel to transport the beam. However, in the southwestern mountainous area, due to the limitation of geographical conditions, there are many tunnels, small tunnel sections, and the abutment is close to the tunnel entrance, which is not conducive to the erection of bridge erecting machines. In v...

AI Technical Summary

Problems solved by technology

However, in the southwestern mountainous area, due to the limitation of geographical conditions, there are many tunnels, small tunnel sections, and the abutment is close to the tunnel entrance, which is not conducive to the erection of bridge erecting machines.

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