Integrated bridge deck hoisting device for superposed beam construction

Abstract

The invention provides an integrated bridge deck hoisting device for superposed beam construction. The integrated bridge deck hoisting device comprises a bottom walking mechanism, a middle lifting mechanism and an upper lifting mechanism, wherein the bottom walking mechanism comprises a lower sliding rail and a supporting leg assembly; the middle lifting mechanism comprises a main beam and a middle hoisting assembly; the upper lifting mechanism comprises a portal crane and an upper sliding rail; the bottom part of the supporting leg assembly is connected with the lower sliding rail; the top part of the supporting leg assembly is connected with the bottom part of the main beam; the middle hoisting assembly is arranged at the top part of the main beam; the upper sliding rail is arranged at the top part of the main beam; the bottom part of the portal crane is connected with the upper sliding rail. The integrated bridge deck hoisting device provided by the invention has the advantages of strong stability and simplicity and convenience for operation; seamless engagement of installation construction of a steel beam and a bridge deck can be realized.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to an integrated bridge deck hoisting device for superimposed beam construction. Background technique [0002] Steel structure bridge is a kind of bridge using steel as the main load-bearing structure. With the continuous improvement of technical level, prefabricated steel bridges have been widely used all over the world. [0003] At present, in the process of hoisting the superimposed beam of the steel structure bridge, there is a cross construction between the hoisting of the steel beam and the laying of the bridge deck, and the process connection efficiency under the limited working face directly affects the overall progress. Generally, the hoisting method of floating crane or split bridge deck crane is used to hoist the steel beam and lay the bridge deck. Floating crane hoisting is to rent large floating crane equipment to lift and install steel beams an...

AI Technical Summary

Problems solved by technology

Floating crane hoisting is to rent large-scale floating cranes to lift and install steel girders and bridge decks. It has the advantages of convenient operation and large working surface, but it occupies the river channel and shakes a lot when the wind is strong, making it difficult to locate accurately and the rental cost is too high

The construction method of the split deck crane is to use the traditional deck crane to hoist the steel girder. After the welding is completed, the deck crane moves forward, and the gantry crane or other lifting equipment is used to lay the bridge deck. It has the advantage of convenient construction, but the construction interval is large. It is not conducive to cable construction, and the bridge deck cannot be laid on the cantilever section with variable cross-section, so there are many limiting factors

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