Wing spreading arch cable-stayed bridge

Abstract

The invention discloses a wing-spreading arch cable-stayed bridge, which is composed of a space-shaped main arch ring with a wing-spreading shape, and three main structures, the cable-stayed cables connected to the main girder inside and outside the arch ring, and the main girder; the arch ring faces the arch The direction of the bridge span where the main girder is connected by the outer stay cable is inclined; the whole bridge generally adopts two-span or three-span layout; The main beam of the mid-span, and the arch system with wings on the other side are arranged symmetrically; when the two-span arrangement is adopted, the main arch of the shape of wings is located in the range of the main beam of the mid-span, and the arch ring is connected to the main beam of the mid-span and side spans by cables; the side piers of the main arch The arch foot on one side is rigidly connected to the main beam, and the main beam, that is, the bottom of the arch foot, is connected to the abutment foundation of the side pier; the arch foot on one side of the middle pier of the main arch is rigidly connected to the main beam. The invention can solve the technical problems of simplifying the system structure, clarifying the stress of the main components, satisfying the bridge-shaped landscape effect, and making the arch ring reach a better reasonable stress state under main compression, and the like.

Description

technical field [0001] The invention relates to the engineering technical field of bridge structures such as highways, railways, municipal roads and gardens across rivers, valleys, roads and the like. Background technique [0002] Bridge engineering is divided into beam bridges, arch bridges, cable-stayed bridges, and suspension bridges from the main stress system. In recent years, various types of combined bridges have emerged, including cable-stayed bridges and girder bridges (such as Guangdong Jinma Bridge), cable-stayed bridges and suspension bridges (such as Guizhou Wujiang Bridge, Brooklyn Bridge), cable-stayed and Anti-arch upward-supporting cable bridge combined system bridge (such as Japan miho museum bridge), arch bridge and girder bridge combined system bridge (referred to as beam-arch combined system bridge), which is composed of arch ribs, tie beams, suspenders, beams and bridge decks Formed), cable-stayed bridges and arch bridge composite bridges (such as Mala...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a wing-spreading arch cable-stayed bridge, which combines the space special-shaped arch and the cable-stayed-arch bridge system bridge to solve the problem of simplifying the system structure, clarifying the stress of the main components, and satisfying the bridge-shaped landscape effect. Technical issues such as making the arch ring reach a reasonable stress state under main compression

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