Reconstruction method of long-span tied arch bridge based on bridge hydraulic jacking system
A tie-bar arch bridge and long-span technology, which is applied in the field of bridge jacking construction, can solve the problems of many temporary pads and jacking cycles, short construction period, and high safety risks, so as to achieve easy control of the construction process, simple installation and layout, The effect of smooth lifting process
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[0194] Such as figure 1 The reconstruction method of the long-span tied-arch bridge based on the hydraulic jacking system of the bridge is shown, the bridge to be reconstructed is a long-span concrete-filled steel pipe tied-arch bridge, and the long-span concrete-filled steel pipe tied-arch bridge includes the main bridge and two connected bridges respectively. In the approach bridges on the front and rear sides of the main bridge, the two approach bridges have the same structure; the two approach bridges are respectively the front approach bridge positioned at the front side of the main bridge and the rear approach bridge positioned at the rear side of the main bridge. The main bridge and the two approach bridges are all arranged on the same vertical plane;
[0195] Such as figure 2 , Figure 22 As shown, the main bridge includes the upper structure of the bridge to be lifted and the lower support structure of the bridge to support the upper structure of the bridge to be l...
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