PVC pipe wrapped inner supporting cross prestress recycled concrete tubular pile

Abstract

The invention discloses a PVC pipe wrapped inner supporting cross prestress recycled concrete tubular pile mainly formed by a PVC pipe, a round reinforcement cage framework, cross steel ribs and recycled concrete. The round reinforcement cage framework and the cross steel ribs are arranged in the PVC pipe, and a round inner cavity is formed in the PVC pipe by the recycled concrete. The round reinforcement cage framework is formed by welding longitudinal prestressed tendons and spiral stirrups. A PVC pipe wrapped pile body resistant to corrosion, light and high in strength can be effectively prevented from being corroded, the corrosion problem of the tubular pile is solved, and the durability of a pile foundation is improved. The inner supporting cross steel ribs can fully achieve the respective advantages of steel, prestressed reinforcement and concrete, the stress performance of the recycled concrete is improved, the bearing capacity and stability of the single pile are improved, the lateral rigidity of the pile body is increased, and transverse deformation is reduced. Waste concrete is fully utilized as recycled aggregate, and application and popularization of the recycled concrete in building foundation engineering are facilitated.

Description

technical field [0001] The invention belongs to the field of pile foundation engineering in building foundation engineering, and in particular relates to a cross-shaped prestressed recycled concrete pipe pile supported inside an outsourcing PVC pipe. Background technique [0002] With the rapid development of the world economy, reinforced concrete structures have entered a period of rapid development, and the construction of new buildings and the demolition of old buildings will produce a large amount of waste concrete. Making full use of these waste concrete can not only effectively reduce the amount of construction waste, reduce the pollution of construction waste to the natural environment, and play a role in protecting the environment. The mining of natural aggregates achieves the purpose of saving natural sand resources and protecting the environment. However, due to the existence of old mortar, the performance of recycled coarse aggregate is quite different from that ...

AI Technical Summary

Problems solved by technology

However, according to the current traditional construction technology, the production of prefabricated piles requires various processes such as formwork support and formwork removal, which consumes a lot of steel forms and increases the workload and construction costs.

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