Highway double-guide-beam bridge erecting machine and turning method

Abstract

The invention discloses a highway double-guide-beam bridge erecting machine and a turning method. The bridge erecting machine comprises longitudinal guide beams, a front support leg, a rear support leg and a rear propping device, wherein the longitudinal guide beams comprise two rows of parallel space trusses with the same structure and size, a front frame is installed between the front end parts of the two rows of space trusses, an upper rear cross beam is installed between the rear end parts, and the front frame and the upper rear cross beam are used for integrating the two rows of space trusses into a whole. The turning method comprises the following steps of: (1) preprocessing the upper rear cross beam; (2) removing part of rods of the front frame; (3) installing the preprocessed upper rear cross beam; (4) removing and hoisting the front support leg; (5) installing a removed lower front cross beam; (6) interchanging the front support leg and the rear support leg; and (7) subsequently processing. The bridge erecting machine has the advantages of reasonable design, simple turning method, fewer removing and installing components, convenient front end and rear end interchange and low investment cost; and the defects of long consumed time, high economical investment, great potential safety hazards, heavy labor intensity, construction period delay and the like of the traditional bridge erecting machine and the turning method are overcome.

Description

technical field [0001] The invention relates to a bridge erecting machine, in particular to a highway double guide beam bridge erecting machine and a U-turn method. Background technique [0002] The highway double guide girder bridge erecting machine is composed of multiple structural components such as longitudinal guide beams, front outriggers, rear outriggers, middle support devices, rear support devices and crane beams. Due to the long equipment length, complex structure and heavy weight of the whole machine, the bridge erecting machine with double guide girders is mainly dismantled and reassembled at present to realize the U-turn of the bridge erecting machine. When the girder erecting machine is turned around, there are many defects and deficiencies such as long time consumption, large economic investment, many safety hazards, high labor intensity, and delayed construction period. Contents of the invention [0003] The technical problem to be solved by the present i...

AI Technical Summary

Problems solved by technology

Due to the long equipment length, complex structure and heavy weight of the whole machine, the bridge erecting machine with double guide girders is mainly dismantled and reassembled at present to realize the U-turn of the bridge-erecting machine. When the girder erecting machine is turned around, there are many defects and deficiencies such as long time consumption, large economic investment, many safety hazards, high labor intensity, and delay in construction period.

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