Steel sleeve reinforced concrete pipe

Abstract

The invention relates to a steel sleeve RC pipe, which comprises a mouthpiece, a socket, a concrete pipe core, a reinforcement framework, a prestressed steel wire and a protection layer. The mouthpiece and the socket are fixedly and coaxially arranged at the two ends of the concrete pipe core respectively; the reinforcement framework, with two ends being fixedly arranged at the mouthpiece and thesocket, is coaxially embedded in the concrete pipe core; a steel barrel is fixedly arranged on the outer wall of the concrete pipe core; and the protection layer is fixedly arranged on the outer wallof the steel barrel and the prestressed steel wire is wound under the outer wall protection layer. The ratio of the wall thickness d to the inner diameter D is Mu, and Mu is more than or equal to onethirty-second, and is less than or equal to one sixteenth; the screw pitch of the prestressed steel wire is at mm, the diameter of the prestressed steel wire is Phi mm and at is more than or equal todouble Phi and is less than or equal to fiftieth. The invention has the advantages of simple integrated structure, scientific and reasonable design, thin pipe wall, light weight, good impermeability,low cost for transportation and construction, and high creativity.

Description

technical field [0001] The invention relates to a concrete pipe, in particular to a steel-sleeved reinforced concrete pipe. Background technique [0002] Reinforced concrete pipes are often used in various water pipelines, mainly because they have a strong ability to resist external pressure loads and internal water pressure. Although it can meet the requirements of use in terms of compressive strength, it still has the following disadvantages: 1. The impermeability is poor; 2. The pipe wall is thick and the pipe body is heavy; 3. The transportation and construction costs are high. The core wall thickness of the current reinforced concrete pipe is designed according to national standards, and its thickness should be greater than 1 / 16 of the inner diameter of the tube core. The main reason for the thick design of the tube core is that the concrete tube needs to bear the high external pressure load caused by the construction covering soil and the high internal pressure load c...

AI Technical Summary

Problems solved by technology

Although it can meet the requirements of use in terms of compressive strength, there are still the following disadvantages: 1. Poor impermeability; 2. The pipe wall is thicker and the pipe body is heavier; 3. The transportation and construction costs are higher

[0003] After searching, it was found that a reinforced concrete pipe was coaxially inlaid with a steel cylinder inside the reinforced concrete core. Although it can achieve good impermeability, the steel cylinder divides the concrete into two parts, thereby reducing the amount of reinforcement. Integral Compressive Performance of Concrete Pipe Body

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