Continuous construction method for concrete pile steel pipe column

Abstract

The invention provides a continuous construction method for a concrete pile steel pipe column. The method comprises the following steps of: 1. treating the ground and building a pile hole; 2. prefabricating a steel reinforcement cage, a steel pipe and steel supports, wherein four support steel bars and at least two otic placodes are symmetrically arranged at the upper end of the steel pipe; 3. symmetrically installing four steel supports on the side of the pile hole and installing jacks on the steel supports; 4. Fixedly arranging identification steel bars and arranging ink flipped lines to be used as marking measuring lines on the outside of the top segment of the steel pipe; 5. placing the steel reinforcement cage in the pile hole and temporarily fixing the steel reinforcement cage; 6. vertically hanging the steel pipe to the pile hole, placing the lower end of the steel pipe into the steel reinforcement cage, and connecting the otic placodes of the steel pipe with the steel reinforcement cage by using hanging steel bars; 7. continuously vertically placing the steel pipe from the pile hole until the support steel bars are contacted with the steel supports; 8. measuring the verticality of the measuring lines (steel pipe) and adjusting the steel pipe by the jacks and the support steel bars; 9. sequentially and continuously carrying out concrete pouring on a concrete pile and a steel pipe column, and the like. According to the continuous construction method of the concrete pile steel pipe column, the construction is convenient and fast, the connection strength of the steel pipe column and the concrete pile can be enhanced.

Description

technical field [0001] The invention relates to the technical field of building foundation engineering, in particular to a construction technique for forming piles of perforated cast-in-place piles as building foundations. Background technique [0002] Steel pipe columns are commonly used in modern high-rise buildings, but due to the complexity of the foundation, the steel pipe columns need to be supported by concrete piles. In the existing steel pipe column construction technology, the concrete pile and the steel pipe column are constructed separately in the punched hole, and the steps are as follows: [0003] 1. Level and harden the construction ground, and then locate pile holes at the pile positions on the construction ground; [0004] 2. Prefabricated steel cages and steel pipes; [0005] 3. Put the reinforcement cage into the pile hole with a crane; [0006] 4. Insert the conduit into the pile hole to pour the concrete pile, so that the concrete fills the pile h...

AI Technical Summary

Problems solved by technology

[0011] At present, the biggest disadvantage of this method of separate construction of concrete piles and steel pipe columns is that the concrete piles and steel pipe columns cannot be continuously constructed. Then the construction of steel pipe columns will take a long construction period and high cost; the connection strength between concrete piles and steel pipe columns is not ideal

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