Ultrathin steel-socket prestress longitudinal bar steel-fiber concrete pipe

Abstract

The invention relates to an ultrathin steel-socket prestress longitudinal bar steel-fiber concrete pipe which comprises a socket, a faucet, a longitudinal bar, a steel-fiber concrete pipe core, a prestress steel wire and a protective layer, wherein the longitudinal bar is embedded in the steel-fiber concrete pipe core, and both ends of the longitudinal bar are fixedly arranged on the socket and the faucet respectively; the specific value of the wall thickness d of the steel-fiber concrete pipe core and the inner diameter D of the pipe core is mu, and mu is lager than or equal to 1 / 60 and smaller than or equal to 1 / 32; the prestress steel wire has a thread pitch of @mm and a diameter of phi mm, and @ is larger than or equal to 2phi and smaller than or equal to 50. The ultrathin steel-socket prestress longitudinal bar steel-fiber concrete pipe has scientific and reasonable structure design, raw material conversation, thinner wall thickness of the pipe core, better permeability and crack resistance, convenient hoisting and transport and lower construction cost.

Description

technical field [0001] The invention relates to a concrete pipe, in particular to an ultra-thin steel socket and socket prestressed longitudinal reinforced steel fiber concrete pipe. Background technique [0002] The steel socket and socket prestressed concrete cylinder pipe is a kind of pipe material for transporting liquid with good impermeability effect, especially in the field of water supply and drainage. The structure of the pipe is simple. A steel cylinder is embedded in the wall of the concrete core. The two ends of the steel cylinder are respectively connected with the steel socket and the socket to form a closed whole. The ability of the pipe to resist external pressure loads and internal water pressure is increased, and in addition, cement mortar is fixed on the outer wall of the concrete pipe core to protect the prestressed steel wire. The core wall thickness of the current steel socket and socket prestressed concrete cylinder pipe is designed according to natio...

AI Technical Summary

Problems solved by technology

The concrete pipe of this structure is heavy in weight, the cost of raw materials is high, and the production time is long. It requires large-tonnage hoisting and lifting equipment for installation, which greatly increases the transportation cost and construction cost of the concrete pipe.

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