Construction Technology of Reinforcement Parts of Middle Pylon Columns in 6# Main Pylon of Changtai Yangtze River Bridge
The main channel bridge of Changtai Yangtze River Bridge is a double-pylon five-span continuous steel truss girder cable-stayed bridge.Its 6# main pylon is a steel-concrete composite structural four-pylon limb spatial diamond-type bridge pylon.There are many problems such as difficulty,high risk and low work efficiency in the construction of steel bar for the pylon limbs of super tall main pylon.It is hard to control the construction schedule and cost.In view of the engineering characteristics of the 6# main pylon,the steel bar of middle pylon column is constructed with the reinforcement parts.The steel bars of the pylon limbs are first lashed in whole segment on the standard steel bar lashing platform,then the blocks are hoisted,and the conical sleeve on the pylon is locked with the steel bar connection joint,which provides a safer,more efficient,economical and advanced construction technology for the steel bar construction of the main pylon,and has significant social and economic benefits for the construction of the projects.
cable-stayed bridgesuper-high main pylonreinforcement partsoverall lashingblock hoistingconical sleevebenefit
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