Steel fiber reinforced concrete pipe with ribbed thin wall

Abstract

The invention relates to a steel fiber reinforced concrete pipe with a ribbed thin wall. The steel fiber reinforced concrete pipe provided by the invention is composes of a mouthing, a socket, a steel fiber reinforced concrete pipe core with a steel cylinder, a prestressed wire and a protective layer, wherein the mouthing and the socket are respectively coaxially fixed on the two ends of the steel fiber reinforced concrete pipe core with the steel cylinder, the external wall of the steel fiber reinforced concrete pipe core with the steel cylinder is fixedly provided with the protective layer, and the prestressed wire is wound on the external wall of the steel fiber reinforced concrete pipe core with the steel cylinder between the external wall and the protective layer; and the ratio of the wall thickness d of the steel fiber reinforced concrete pipe core with the steel cylinder and the inner diameter D of the pipe core is mu, wherein 1 / 32<mu<1 / 16, the thread pitch of the prestressed wire is @ mm, the diameter of the prestressed wire is phi mm, 2phi<=@<=50, and an annular steel rib is coaxially welded on the steel cylinder. The steel fiber reinforced concrete pipe with the ribbed thin wall provided by the invention has the advantages of simple integral structure, scientific and reasonable design, simple production process, higher production efficiency, thin pipe wall, light weight, distinct external pressure bearing capability, good impermeability and lower transportation and construction cost.

Description

technical field [0001] The invention relates to a concrete pipe, in particular to a thin-walled steel fiber concrete pipe with ribs. Background technique [0002] In the search, it was found that the patent name is "Steel Sleeve Reinforced Concrete Pipe", the patent number is 200710059219.9, and the patent announcement number is CN101373034. Its structure mainly includes sockets, sockets, concrete tube cores, steel skeletons, and prestressed steel wires As well as the protective layer, the socket and the socket are coaxially fixed at both ends of the concrete pipe core, and the steel skeleton is coaxially embedded in the concrete pipe core. A steel cylinder is fixed on the outer wall of the tube core, and a protective layer is fixed on the outer wall of the steel tube, and prestressed steel wires are wound on the outer wall of the steel tube between the steel tube and the protective layer; the wall thickness d of the concrete tube core is equal to the inner diameter D of the...

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Problems solved by technology

[0002] In the search, it was found that the patent name is "Steel Sleeve Reinforced Concrete Pipe", the patent number is 200710059219.9, and the patent announcement number is CN101373034. Its structure mainly includes sockets, sockets, concrete tube cores, steel skeletons, and prestressed steel wires As well as the protective layer, the socket and the socket are coaxially fixed at both ends of the concrete pipe core, and the steel skeleton is coaxially embedded in the concrete pipe core. A steel cylinder is fixed on the outer wall of the tube core, and a protective layer is fixed on the outer wall of the steel tube, and prestressed steel wires are wound on the outer wall of the steel tube between the steel tube and the protective layer; the wall thickness d of the concrete tube core is equal to the inner diameter D of the tube core The ratio is μ, 1 / 32≤μ≤1 / 16; the pitch of the prestressed steel wire is mm, the diameter of the prestressed steel wire is φmm, 2φ≤≤50, although this ordinary concrete pipe reduces the thickness of the concrete tube core, but It still cannot meet the requirements of resisting external pressure load and internal water pressure, and the welding of the steel frame is more complicated, the welding workload is larger, the time is longer, and the production efficiency is lower

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