Jacking system for main bridge of large-span tied arch bridge and jacking construction method
A tie-arch bridge and long-span technology, which is applied to the jacking system and jacking construction field of the main bridge of the long-span tied-arch bridge, can solve problems such as tight construction schedule, short closure time, and potential safety hazards
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[0115] Such as figure 1 The jacking system for the main bridge of a long-span tied arch bridge includes two symmetrically arranged left and right main bridge jacking devices that vertically lift the upper structure of the lifted bridge. The upper structure of the lifted bridge is The bridge superstructure of the main bridge of a long-span concrete-filled steel pipe tied-bar arch bridge, the long-span concrete-filled steel pipe tied-bar arch bridge comprising a jacked-up bridge superstructure and a bridge lower support structure supporting the jacked-up bridge superstructure; combined figure 2 , the jacked bridge superstructure includes two left and right arch bridge superstructures 23 arranged symmetrically, the two arch bridge superstructures 23 are arranged vertically and the two are arranged along the longitudinal bridge direction;
[0116] Each arch bridge superstructure 23 includes two left and right arch bridge composite structures symmetrically arranged and a plurality...
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