Self-balancing bridge with combined arch bridge and suspension bridge and construction method thereof

Abstract

The invention discloses a self-balancing bridge with combined arch bridge and suspension bridge. The self-balancing bridge comprises a main girder structure, a bridge floor, two arch rings and two main ropes, wherein the main girder structure is connected with the arch rings through slings, the main ropes are connected with the main girder structure through jackstays, the upper ends of the jackstays are articulated with the main girder structure, and the lower ends of the jackstays are articulated with the main ropes. The combined self-balancing bridge combines stress characteristics of an arch and the ropes, and horizontal forces of the arch, the ropes and the girder are in a self-balancing state without needing external horizontal limitation and without generating a pushing force or a pull force to the outside. The invention further discloses a construction method. The construction method comprises bridge abutment or bridge pier construction, support construction, main girder structure construction, arch ring construction, sling construction, bridge floor construction, sling tensioning, main roper construction, jackstay construction, sling force releasing and the like. The construction method effectively improves the bridge formation efficiency, reduces the construction difficulty and saves time limit for a project.

Description

technical field [0001] The invention belongs to the technical field of bridges, and in particular relates to a combined self-balancing bridge of an arch bridge and a suspension bridge and a construction method thereof. Background technique [0002] Beam bridges, arch bridges, and cable bridges are different bridge structures, and their stress characteristics are different. The girder bridge is mainly subjected to the bending of the girder, the arch bridge is mainly subjected to the compression of the arch rib, and the cable bridge is mainly subjected to the tension of the cable. The spanning capacity of arch bridges and cable bridges is greater than that of girder bridges, thanks to their ability to give full play to the performance of materials. However, arch bridges mainly under compression will generate horizontal thrust at the arch foot, and the construction of long-span arch bridges requires better geological conditions so that the foundation can resist the horizontal ...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the arch bridge will generate thrust on the outside, and the suspension bridge will generate tension on the outside. If the solution is solved by the structure itself (using a tie-bar arch or a self-anchored suspension bridge), there are also certain shortcomings, resulting in material waste or unfavorable structural stress.

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