Prestressed concrete cylinder pipe with transfer part for being connected with steel pipe

Abstract

The invention relates to a prestressed concrete cylinder pipe with a transfer part for being connected with a steel pipe. Steel bell and spigot rings at both ends of a pipe body are fixedly connected with flange plates capable of being connected with the steel pipe. The prestressed concrete cylinder pipe has the advantages that 1, the aim that an abutted joint of the prestressed concrete pipe and the steel pipe is a flexible joint can be fulfilled, so that the phenomenon of a break port generated due to the differential settlement of a foundation is avoided and the normal operation of a pipeline is ensured; 2, the transfer part and the steel pipe can be connected in a welding mode or through a bolt, so that the construction of engineering is convenient to carry out; 3 due to the adoption of the transfer part, functions of diameter reducing, turning or folding and the like of the pipeline, which cannot be realized by a concrete pipe, can be realized; and 4, the prestressed concrete cylinder pipe has a simple structure, the investment of large-scale processing equipment is not required, the factory production can be realized, the field construction is simplified, the construction cost is saved, and the actual application value is very high.

Description

Technical field: [0001] The invention belongs to a concrete pipe, in particular to a prestressed steel cylinder concrete pipe with a conversion piece for connecting steel pipes. Background technique: [0002] With the rapid development of my country's economic construction, urban water will be seriously lacking, and long-distance water diversion projects are an effective way to solve urban water use. So far, prestressed concrete pipes have been widely used in water delivery projects, replacing traditional steel pipes and cast iron pipes, and have the advantages of saving steel, good corrosion resistance, long life, strong water delivery capacity, no scaling on the inner wall, and no impact on water quality , Abundant raw materials, convenient socket laying and installation, strong earthquake resistance and other advantages. From the structural characteristics of the prestressed steel cylinder concrete pipe, it can be seen that it is a high-strength concrete tube core with a...

AI Technical Summary

Problems solved by technology

However, during the installation process of the project, problems of turning, changing diameter or closing are often encountered. In this case, steel pipes must be used, and steel pipes and concrete pipes cannot be welded.

Although there are steel socket rings at both ends of the prestressed steel cylinder concrete pipe, which can be welded, but after welding, the flexible joint of the pipe becomes a rigid joint. Once the foundation subsides, the weld joint is easy to break, which affects the safe operation of the pipe.

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