Push-pull system and its construction method for steel bridges in navigable waters
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A push-pull, systematic technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of long construction period, large amount of engineering, slow moving of pontoon tow, save construction period, reduce environmental pollution, and reduce the impact of navigation. Effect
Active Publication Date: 2020-10-09
安徽建工路港建设集团有限公司
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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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[0034] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0035] Said steel bridge jacking and pulling system in navigable waters includes an assembled jacking support system 2 and a positioning and pulling system for pontoons in the water area, and a steel bridge 1 is arranged above the assembled jacking support system 2;
[0036] The assembled jacking support system 2 includes rails 15, vertical box girders 16, beams 17, steel pipe columns 18, connecting steel plates 19, scissor braces 20, foundations 21, flange plate...
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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...
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