Steel faucet steel wire net slice non-longitudinal rib prestressed concrete pipe

Abstract

The invention relates to a steel bell-and-spigot steel wire netting longitudinal-bar-free pre-stressed concrete pipe which is composed of a pipe socket, a faucet, a pre-stressed concrete pipe core, a pre-stressed steel wire and a protective layer. Steel wire netting cylinders with the same diameters are respectively, axially and fixedly arranged at the end parts of the pipe socket and the faucet in the pre-stressed concrete pipe core, namely at the outer margin and the inner margin parts of the pipe socket and the faucet. The steel pipe bell-and-spigot steel wire netting longitudinal-bar-free pre-stressed concrete pipe has simple overall structure, scientific and reasonable design, and good durability, barrier property and water resistance at joints; the steel wire netting is adopted to replace the framework of steel reinforcement, thereby improving the crack resistance of the pre-stressed concrete pipe, prolonging the service life of the pre-stressed concrete pipe, lowering the steel consumption, facilitating convenient maintenance and simple operation, greatly reducing construction cost of the product, and creating the conditions for the wide application of the pre-stressed concrete pipes.

Description

technical field [0001] The invention relates to concrete pipes, in particular to a prestressed concrete pipe with steel sockets, steel mesh sheets, and no longitudinal reinforcement. Background technique [0002] Steel socket prestressed concrete pipe is a pipe mainly used in municipal, water conservancy, electric power, and urban water supply and drainage systems. It is also often used in industrial water pipelines, farmland irrigation, and factory pipe networks. The cost of the current prestressed concrete pipes with steel sockets is relatively high, which limits the wide application of concrete pipes. The main reasons for the high cost of prestressed concrete pipes with steel sockets are: 1. The rise in steel prices has led to increased costs. The concrete pipe core is embedded with a cylindrical steel skeleton, which is formed by binding or welding multiple longitudinal bars and circumferential steel bars, and the amount of steel used is relatively large; 2. The manufac...

AI Technical Summary

Problems solved by technology

When the steel frame is bound manually, the production efficiency is low, the production cycle is long, and the defective rate is high; when the steel frame is fixed by welding with special equipment, although the production cycle is shortened and the defective rate is reduced, the mechanical equipment higher cost

At present, in the actual production of prestressed concrete pipes with steel sockets, micro-cracks are prone to appear at the socket end and socket end of the inner wall of the pipe, and the longitudinal tension of the pipe core is not high enough to cause micro-cracks

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