Push-pull system and its construction method for steel bridges in navigable waters

Abstract

The invention relates to a navigable water area steel bridge pushing and dragging system which comprises an assembled pushing support system and a water area pontoon positioning and dragging system, and a steel bridge is arranged above the assembled pushing support system. The assembled pushing support system comprises rails, longitudinal box girders, cross beams, steel pipe columns, connecting steel plates, diagonal bracings, foundations, flange plates and reinforcing ribs. The water area pontoon positioning and dragging system comprises a supporting point, a bearing platform, an embedded steel anchor, a positioning steel anchor rope, a pontoon, a temporary fixed rail support, a pontoon support, an anchor pile, a steel strand, a winch, a side anchor, a mooring rope, a connecting rod and apositioning ring. The system has the beneficial effects that the prefabricated foundation in the steel bridge assembling pushing support system is adopted, the construction period can be shortened, large-area ground hardening is not needed, environmental pollution is reduced, cyclic utilization is achieved, and the system is environmentally friendly.

Description

technical field [0001] The invention relates to a push-pull system for a steel bridge, in particular to a push-pull system for a steel bridge in navigable waters and a construction method thereof. Background technique [0002] In bridge construction, more and more novel bridge structures and bridge construction technologies have been applied and achieved excellent results. Bridge jacking construction completes spanning from the air, which can overcome many unfavorable factors in the construction process. At present, the drag-type jacking construction technology is generally used, but there are still some problems in the jacking and dragging construction of steel bridges in navigable waters: the foundation work of the assembled jacking bracket is large and the construction period is long, and the dragging of the pontoon moves slowly and is easily affected by external forces. deviate from the intended direction. [0003] Therefore, it is very important to seek a push-pull sy...

AI Technical Summary

Problems solved by technology

At present, the drag-type jacking construction technology is generally used, but there are still some problems in the jacking and dragging construction of steel bridges in navigable waters: the foundation work of the assembled jacking bracket is large and the construction period is long, and the dragging of the pontoon moves slowly and is easily affected by external forces. deviated from the intended direction

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