Wheeled guide beam bridging machine and section beam installation process

Abstract

The invention provides a wheeled guide beam bridging machine and a section beam installation process. The wheeled guide beam bridging machine comprises two sets of bearing and sliding devices and at least two retractable trusses, wherein the two sets of bearing and sliding devices are arranged in parallel at a certain interval, the two sets of bearing and sliding devices are connected by the retractable trusses, the distance between the two sets of bearing and sliding devices is larger than the diameter of a bridge pier, and the bearing and sliding devices are used for bearing and driving a section beam to move along the horizontal direction or the vertical direction. The section beam installation process adopt the wheeled guide beam bridging machine as a section beam transporting and bearing device, the wheeled guide beam bridging machine is used as a bridging device to uniformly transfer the load of the entire section spanning beam to the existing road, and the existing road is not required to be 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 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 - drop beams in place - bridge erecting machine moving holes over spans - prestressed grouting and wet joint construction. [0003] There are mainly the following disadvantages in the construction of segmental girders using upper (lower) gu...

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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