Lifting and Closure Technology for Overweight Special Shaped Components in Limited Space
The upper steel box girder of Qilu Yellow River Bridge adopts the jacking construction technology.Because the weight of a single steel box girder is too large,the cantilever units on both sides of the steel box girder in the arch girder junction section are cut during the incremental construction.After the jacking is completed,the cantilever units are lifted and closed to improve the safety of the jacking construction process.In this paper,the lifting and closure technology for overweight special shaped components in limited space are introduced,which provides reference for similar construction in the future.
bridge engineeringnetwork tie-arch bridgeoverweight special-shaped componentlift and closurelimited space
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