Rubber-tyred guide beam bridge girder erection machine and installation technology for discrete spanning assembly and integral spanning longitudinal shift of segmental beam

Abstract

The invention provides a rubber-tyred guide beam bridge girder erection machine and an installation technology for discrete spanning assembly and integral spanning longitudinal shift of a segmental beam. The rubber-tyred guide beam bridge girder erection machine comprises two groups of bearing sliding devices and at least two opening and closing trusses, wherein two groups of bearing sliding devices are arranged in parallel at a distance interval, the two groups of bearing sliding devices are connected through the opening and closing trusses, the distance between the two groups of bearing sliding devices is more than the diameter of piers, the bearing sliding devices are used for bearing and driving the segmental beam to move along a horizontal or vertical direction, and the opening and closing trusses are capable of opening so as to avoid the blocking of the piers. In the invention, the rubber-tyred guide beam bridge girder erection machine is used as transportation and bearing equipment of the segmental beam in the installation technology for the discrete spanning assembly and integral spanning longitudinal shift of the segmental beam, the rubber-tyred guide beam bridge girder erection machine as bridging equipment uniformly transmits the load of the segmental beam in the integral spanning to an original road, so that the original road is free from being reinforced.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a tire-type guide girder bridge erecting machine and a segmental girder spacer-span assembly and whole-span longitudinal movement installation process. Background technique [0002] At present, the segmental girder installation process mainly uses the upper (lower) guide girder bridge erecting machine for construction. The load of the segmental beam is transferred to the pier, and the construction process steps: use the lifting trolley (crane) to assemble the segmental beam block in situ - the segmental beam block moves longitudinally - the segmental beam block positioning - epoxy adhesive Preparation and smearing - alignment and tension temporary prestressing - permanent prestressing construction - bridge erecting machine moving holes and crossing spans - falling beams in place - prestressed grouting and wet joint construction. [0003] There are mainly the following disadvan...

AI Technical Summary

Problems solved by technology

[0004] 1) The hoisting speed of the segmental beam is slow, and the crane takes up a lot of space, which affects the traffic flow of the existing road;

[0005] 2) The construction time of a single span is relatively long, generally 6-7 days per span;

[0006] 3) The time for moving the hole is longer and the risk is higher;

[0007] 4) It is difficult to move the hole over the curve section

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