Suspension cable-arch combined system bridge structure and assembly construction method thereof

Abstract

The invention discloses a suspension cable-arch combined system bridge structure and an assembly construction method thereof. Arch ribs are arranged below a main beam of a suspension bridge, arch columns are arranged on the arch ribs, the upper ends of the arch rib columns are connected with the main beam, the lower ends of the arch rib columns are connected with the arch ribs, and the two ends ofthe arch ribs are fixed to arch rib foundations which are independent foundations; the arch rib foundations are arranged below the main beam; the arch ribs comprise a plurality of prefabricated archrib sections, and the prefabricated arch rib sections are fixedly connected. Arch rib main arches and main cable surfaces are not coplanar, so that the main beam forms a continuous structure in the transverse direction to reduce the height of the main beam; the axial force level of a bridge cable bent tower and a main cable of the suspension cable-arch combined system is lower, so that a lighter structural size can be made, and the construction control difficulty is also reduced; compared with a common arch bridge, the load level of the arch ring and the arch foot of the suspension cable-archcombined system bridge is low, the size of the structure can be reduced, the axial force of the cable bent tower can be reduced, and the horizontal thrust of the main arch ring can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of municipal landscape bridges, and in particular relates to a suspension cable-arch combined system bridge structure and an assembly construction method thereof. Background technique [0002] With the continuous acceleration of the urbanization process, urban construction has stepped to a new level. As the focus of urban construction, modern urban bridges not only need to meet the needs of traffic functions, but also need to take into account the needs of landscape and environment, and sometimes even become a regional landmark. [0003] Urban expansion will inevitably bring about rapid population expansion, which also poses new challenges to urban transportation. In recent years, most of the new urban high-grade roads are separated by fast and slow-moving systems, and the road sections are wide. Under this premise, urban bridges, as the throat of urban traffic, need to be matched with road design and impro...

AI Technical Summary

Problems solved by technology

The main arch ring is the main force-bearing member of the arch bridge, and its construction is complicated, and it often takes a lot of money to build temporary measures to complete the construction of the arch ring, and the temporary measures need to be dismantled after the construction is completed, resulting in a great waste of resources

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