Construction method for utilizing multi-suspension cable crane to transfer bridge deck in limited mountainous area

Abstract

The invention provides a construction method for utilizing multi-suspension cable crane to transfer bridge deck in limited mountainous area. A multi-point cable hoisting system is constructed on the basis of the existing cable hoisting system. The system is provided with a set of load-bearing cables and three sets of traction and hoisting systems are arranged on the load-bearing cables. One set oftower in front of each side is used as a bridge deck transporting system for transporting the approach bridge deck, and the running range is 100m in front of the tower. A set of main lifting points is arranged in the middle of the span for the installation of the stiffening girder, which can be operated within the full span; When the main hoisting point of the cable hoisting system is in the middle of the span, the bridge deck transfer system is used for the transfer of the bridge deck; The construction method for utilizing multi-suspension cable crane to transfer bridge deck in limited mountainous areas is mainly used for solving the transportation problem of the orthotropic steel bridge deck assembled by the approach bridge in the construction process of the suspension bridge in the restricted mountainous area.

Description

technical field [0001] The invention relates to a construction method for a transshipment bridge deck, in particular to a construction method for lifting a transshipment bridge deck by using cables at multiple lifting points in mountainous areas where the site is limited. Background technique [0002] During the construction of suspension bridges in restricted mountainous areas, an assembly yard is usually set up to assemble steel trusses and bridge decks. For some areas with steep terrain, it is difficult and costly to set up the assembly yard. Due to the limited area of ​​the assembly yard, the area of ​​the assembly yard cannot meet the assembly needs of steel truss girders and bridge decks at the same time. The panels are directly assembled on the bridge deck of the approach bridge. After the bridge deck is assembled, it needs to be transferred to the steel truss assembly yard and lifted together with the steel truss after assembly. At present, the following methods are...

AI Technical Summary

Problems solved by technology

[0006] Therefore, in order to solve the above-mentioned deficiencies, the present invention hereby provides a construction method for using multi-suspension-point cables to lift the deck of the transfer bridge in mountainous areas where the site is limited; Transshipment Problems of Heterogeneous Steel Bridge Deck

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