Application of Electric Mechanical Girder Cranes in the Installation of the Prefabricated Bridge Decks of Steel-Concrete Composite Box Girders
Taking the construction of the superstructure of the bridge project of a highway construction project in Lan-zhou City,Gansu Province as an example,this paper analyzes the installation and construction conditions of prefabricated bridge decks among the boxes of the two-way six-lane first-class highway bridge,the upper part of which is a double steel girder with the wide steel-corrugated web-concrete composite box girder,mainly including the process principle,construction preparation,surveying and setting out,transportation of prefabricated bridge decks,lifting of electric me-chanical girder cranes,installation and erection of prefabricated bridge decks,etc.For this construction condition,a spe-cially designed and manufactured tire-typed electric mechanical girder crane is used to quickly install prefabricated bridge decks to the predetermined position among the boxes of the double steel box girder with the steel-corrugated web-concrete composite box girder,which improves the safety and stability of construction,accelerates the construction progress and production efficiency,reduces fuel consumption and vehicle exhaust emissions,and has good effects on re-ducing construction costs and improving the level of safe,environmentally-friendly and civilized construction.
Electric mechanical beam lifting machineComposite box girderPrefabricated bridge deckErection and installation
NETL
NSTL
万方数据
维普
