Combined assembled bridge section based on core box body

Abstract

The invention discloses a combined assembled bridge section based on a core box body, which is characterized in that the section main body is composed of two core box-type segments which are symmetrically arranged left and right, a single chamber is arranged in each box body, each box body is longitudinally divided into standard segments, the two sides and the middle part of each box body are cast-in-place bridge decks, and the bottom of each bridge deck and the bottom edge of a box girder web are supported by steel rods. Disclosed by the invention is a whole bridge section, the number of piers is small, the visual field under the bridge is transparent, and the landscape effect is good; the bridge is prefabricated and assembled, the construction quality and the construction time can be fully guaranteed, the structural integrity is good, and the driving comfort is good; line type requirements and bridge span requirements can be better met; and the requirements for the width of a multi-lane bridge, bridge landscape and higher driving comfort can be fully met, and wide application prospects are achieved in urban bridge construction.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, and in particular relates to a combined assembled bridge section based on a core box. Background technique [0002] With the rapid development of my country's infrastructure, the requirements for the width of many municipal viaducts and the access and exit lanes supporting the airport high-speed rail are getting wider and wider, and the requirements for bridge landscapes are also getting higher and higher. [0003] As for wide-width bridges with medium spans, the most commonly used cross-section forms are mainly technical solutions such as parallel juxtaposition of multiple prefabricated girders, cast-in-situ multi-chamber box girders, or entire steel box girders. Parallel juxtaposition of multiple prefabricated girders is to divide the whole bridge into narrow longitudinal small box girders in the horizontal direction. When the width is wide, the number of transverse pie...

AI Technical Summary

Problems solved by technology

Parallel juxtaposition of multiple prefabricated girders is to divide the whole bridge into narrow longitudinal small box girders in the horizontal direction. When the width is wide, the number of transverse piers increases, and the bridge landscape effect is poor. When the prefabricated beam-slab structure is used, the structural span is limited, and the structural integrity and driving comfort are poor.

When the cast-in-place multi-chamber box girder is used, the bridge height of this technical scheme is relatively high, and the bridge deck width and landscape are still limited, while the whole steel box girder scheme is expensive and requires high construction technical conditions

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