Space pylon stayed balance bridge

Abstract

The invention relates to a design of a large-span movable bridge in bridge construction, belonging to the construction engineering technique field. The design is characterized in that a main tower has a space four tower-column structure and an axial direction and transverse direction all appear as an inversed Y shape; a cable-stayed bridge structure is adopted with space double cable faces. When in construction, firstly the base of the cable-stayed bridge is constructed, and then the lower tower columns are constructed, and then a revolving device and a sliding channel are arranged on a platform of the lower tower columns, and then the upper tower columns of the cable-stayed bridge are constructed and the steel box girders are manufactured in plant at the same time and the girders are delivered to the bridge section by section, and then cables are arranged and the steel box girders are arranged section by section till closure section, and finally the bridge face, etc. accessories are constructed. The effects and benefits of the invention are that the form is novel and elegant, and especially the adoption of space four tower-column structure guarantees the stability of the bridge during the turning process; the adoption of cable-stayed bridge structure makes the large-span movable bridge possible and enhances the stability in use process.

Description

technical field [0001] The invention belongs to the technical field of construction engineering and relates to the design of bridges in bridge engineering, in particular to the design of large-span open bridges. Background technique [0002] At present, the opening methods of the opening bridge include direct lifting, horizontal rotation opening, vertical rotation opening and telescopic opening. There are three types of bridges in open bridge design: [0003] One is the steel truss open bridge, which is the most common type of open bridge. The steel truss open bridge with the largest span is the EL FERDAN Bridge in Egypt across the Suez Canal, with a main span of 340m and a single-side open span of 170m, which is opened by horizontal rotation. However, with the increase of the span, the construction cost of the simple truss structure increases rapidly, and the axial force of the root member is too large to cause instability and cause the whole bridge to collapse. [0004]...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a large-span opening bridge design solution to solve the problem that the span of the opening bridge is limited, and to ensure the stability during the opening process and the driving stability during use

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