Combined arch segment structure, bridge and construction method

Abstract

The invention provides a combined arch segment structure, a bridge and a construction method, relates to the technical field of bridge engineering, and aims to solve the problems that an existing stiff skeleton arch bridge adopts a concrete wrapping skeleton for cooperative stress, the stress state of the whole structure is complex, and the risk of web cracking exists. The truss structure formed by the web members is adopted to replace concrete webs, the overall structure is clear in stress, prefabricated assembly construction can be conducted, and stress analysis and later maintenance are convenient to conduct; the structure comprises a middle box and side boxes connected to the two sides of the middle box respectively. Each side box comprises arch plates, chord members and web members, the at least two arch plates are sequentially arranged in parallel at intervals, at least two chord members are sequentially embedded in each arch plate, and the web members are connected between the opposite chord members in the adjacent arch plates to form a truss structure; a middle plate and a plurality of first transverse supports are connected between the two side boxes corresponding to the same middle box, the two ends of the middle plate are connected with the arch plates of the different side boxes, and the middle plate and the connected arch plates are coplanar.

Description

technical field [0001] The present disclosure relates to the technical field of bridge engineering, in particular to a composite arch segment structure, a bridge and a construction method. Background technique [0002] Stiff skeleton arch bridge has good mechanical performance. As one of the main bridge types for long-span bridges, the concrete stiff skeleton arch bridge has the functions of longitudinal steel bars and transverse stirrups in the concrete composite, which can withstand both pressure and pull. [0003] There are still some problems in the traditional rigid frame outsourcing concrete arch bridge. For the large-span frame concrete arch bridge, the large-span frame concrete arch bridge is usually used in the construction of crossing the river or crossing the river. The two sides of the concrete arch bridge are poured separately On the mountains on both sides of the river or river, the length of the half-span arch circle is long, it is inconvenient to transport b...

AI Technical Summary

Problems solved by technology

[0003] There are still some problems in the traditional rigid frame outsourcing concrete arch bridge. For the large-span frame concrete arch bridge, the large-span frame concrete arch bridge is usually used in the construction of crossing the river or crossing the river. The two sides of the concrete arch bridge are poured separately On the mountains on both sides of the river or river, the length of the half-span arch circle is long, it is inconvenient to transport between the mountains, and the construction is difficult, and there are certain safety risks. However, the concrete is wrapped on the outside of the skeleton. During the construction process and the use process, the concrete-wrapped skeleton is jointly stressed. The stress state of the overall structure is complex, and there is a risk of web cracking. It is difficult to analyze the force and risk of the stress concentration location. estimate

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