Development and Application of Assembling Bridge Erecting Machine with Small Curve and Heavy Slope
In order to solve the technical problems of assembling and erecting small curve,large slope and long span section beams of Fanling Viaduct in Hong Kong,the DP125/62 m section assembling and erecting machine was designed and developed by joint manufacturers.The equipment adopts trussed 2-span main beam and 4-leg system,the main beam is fully symmetrical design,the installation position of the front and rear auxiliary legs can be interchangeable,the two moving legs can be bidirectional beam,the crane running mechanism and lifting mechanism both adopt frequency conversion technology,the spinner can achieve±180 °flat rotation and independent adjustment of the segmental air attitude.Through the engineering application,it is verified that the whole machine is safe,efficient,convenient and fast,with low pier girder in the first and last span,small curve radius and large slope,and the whole machine is variable span and double line variable amplitude frame.The successful application of the equipment in Fanling Viaduct project in Hong Kong has solved the difficult problem of T-segment assembling girder under various special working conditions.The technological achievements of small curve and large slope girder erection summarized in this paper provide equipment development and engineering practical experience for the construction of similar bridges at home and abroad.
small curveheavy slopesegmental beamassemblybridge erecting machine
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