Wing spreading arch cable-stayed bridge

Abstract

The invention discloses a wing spreading arch cable-stayed bridge. Three major main structures of a spatially shaped main arch ring which has a wing spreading profile, a cable-stayed bridge which is inside and outside of the arch ring and is connected to the main beam and the main beam are adopted; arch ring is inclined in the bridge span direction of an outer arch stay cable connecting with the main beam; the whole bridge adopts a two-span or three-span arrangement; when the three-span arrangement is adopted, the main arch with the wing spreading profile is positioned within a range of a sidespan main beam; the arch ring is connected with the side span and a middle span main beam through stay cables and the wing spreading arch system at the other side is symmetrically arranged; when thetwo-span arrangement is adopted, the main arch with the wing spreading profile is positioned within a range of a middle span main beam; the arch ring is connected with the middle span and the side span main beam through stay cables; an arch foot of one side of a main arch side pier is rigidly connected with the main beam; the main beam, that is the arch foot bottom is provided with a support seatwhich is connected with a side pier abutment base; an arch foot at one side of the main arch middle pier is rigidly connected with the main beam. The invention can solve the technical problems such asstreamlining the system structure, defining the force carried by the main body component, satisfying the effect of the bridge-type landscape, and allowing the arch ring to reach a state of reasonablestress.

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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