Lattice-type large-span soil-filling composite corrugated steel arch bridge structure

Abstract

The invention relates to a novel composite arc bridge structure, and particularly discloses a lattice-type large-span soil-filling composite corrugated steel arch bridge structure. Sandwich mortar composite corrugated steel plates are adopted as large-span main arch rings of the composite structure. The corrugated steel plates are connected to form a reversely arranged double-layer plate through bolts, studs are arranged in an interlayer, and filled high-strength mortar forms an integral sandwich composite corrugated steel plate. Corrugated steel tubes are adopted by gastropore. Load is conveyed between the main arch rings and the gastropore by filling soil. The lattice-type large-span soil-filling composite corrugated steel arch bridge structure has the advantages of being low in weight, durable, high in strength, good in flexibility, high in performance, rapid in construction, good in economic benefit and the like, is an ideal alternative to reinforced concrete bridges, can be widely used in the construction of middle-sized bridges (20-50m), and can certainly generate good social economic benefit.

Description

technical field [0001] The invention relates to a novel composite structure, in particular to an empty stomach type long-span filled soil composite corrugated steel plate arch bridge structure. Background technique [0002] For decades, medium and small bridges and culverts have dominated construction. At present, most of my country's medium and small bridges and culverts are traditional masonry or reinforced concrete structures, but practice has proved that the shortcomings of such structures are also very obvious. : The amount of masonry is large, the design and construction are cumbersome, and the construction period is long; the substructure accounts for a large proportion of the engineering volume, and the construction is difficult; the structure cracking phenomenon is common, the maintenance cost is huge, etc., and the social impact and economic loss caused thereby are inestimable. Therefore, in view of the current situation, reasonable, economical, convenient and fast ...

AI Technical Summary

Problems solved by technology

[0002] For decades, medium and small bridges and culverts have dominated construction. At present, most of my country's medium and small bridges and culverts are traditional masonry or reinforced concrete structures, but practice has proved that the shortcomings of such structures are also very obvious. : Large amount of masonry, cumbersome design and construction, long construction period; large proportion of substructure, difficult construction; common structural cracking, huge maintenance costs, etc. The resulting social impact and economic loss are even more unpredictable

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